SA515361210B1 - Sleeve Valve - Google Patents

Abstract

An sleeve valve for a well assembly includes at least one set of passages extending through a tubular body between the central passage and an exterior of the tubular body and a sleeve slidably located within the central passage of the valve body adapted to selectably sealably cover or uncover the at least one sets of passages. A shifting tool for actuating the sleeve valve is connectable to a tool string and includes a shifting bore with an actuating piston extending from a central bore through the shifting tool and first and second key bores extending radially inwards from the outer surface each having a piston keys located therein. Each of the first and second piston keys is operably connected to the actuating piston so as to be extended from the outer surface when the central bore is supplied with a pressurized fluid. Fig. 1

Description

Sleeve Valve Full Description BACKGROUND The invention relates dal as dale to hydrocarbon well control and specifically methods and devices to selectively open and close areas within iw hydrocarbon well during completion Hydraulic fracturing 5 or production. in the production of hydrocarbons; It has become common to use directional or horizontal drilling to access rocks or petroleum-containing formations; which may be at a horizontal distance from the excavation site. Horizontal drilling is also commonly used to extend a Jl bore along a horizontal or inclined formation or to expand across several formations with a single wellbore yi. And using horizontal drilling, the 0 casing of all is liable to settle on the bottom of the wellbore, which requires the use of spacers in order to centralize the casing inside the all hole in horizontal hydrocarbon wells; It is most desirable to choose which area of the jill pit should be opened for production or to stimulate one or more dl areas to increase the production of that area from time to time. One of the current methods for stimulating part of all PE 15 is using hydraulic fracturing or fracturing with a fluid 17801609. One of the difficulties that can be encountered with conventional hydraulic fracking systems is the need to isolate the area to be stimulated on each From its upper and lower ends so that the stimulation is limited to the desired area. This insulation is typically achieved by sealing elements known as production gaskets placed on either side of the area to be insulated.

One of the previous problems that can be met with current hydraulic fracturing methods is that most hydrocrion wells are constructed with a well casing inside the Jill hole which is held in place with cement by pumping cement down into the casing to the bottom of the ll so that the space is filled The annulus between the casing and the blister pit from bottom to top. This cement provides an additional barrier between the centers

Blister casing and blister pit to be broken. And in the traditional ways; For Lad to be done after breaking an area constructed in this way; It shall be necessary to form a conduit from the inside of the casing to the wall of the blister pit by crushing the cement in addition to the formation. The need to break the concrete in addition to the formation increases the pressure required for the hydraulic fracturing process and thus increases the demands on the equipment as well as the resulting cost and time demands.

0 Previous attempts have been made to overcome some of the previous difficulties to provide valves in the operating line inside the casing so that an outlet is selectively provided to access the required well areas. These valves can be sliding valves. Jie manifolds include what is described in Hofman's US Patent Application No. 2006/020763 of September 1; 2006. However; Using Jie these slide valves remains essential

5 cracking; Dissolving or perforating the concrete that surrounds the casing in one way or another to access the formation. GENERAL DESCRIPTION OF THE INVENTION According to a first embodiment of the present invention a device is disclosed to selectively permit fluid contact between an inner and outer space of a well assembly comprising a tubular body

The tubular body extends between the first and second ends, and includes a central corridor that extends between them

0 Connect the first and second ends to the blister assembly so that the central passage is in fluid contact with the inner space of the blister assembly. The device also includes at least one set of passages that extend through the tubular body between the central passage and an outer surface of the tubular body, and a sleeve slidably that can be placed by sliding inside the central passage of the valve body, prepared to stand optionally and preventively. To leak by covering or exposing the group

5 at least one of the lanes. The device also includes an offset tool that can be placed by

slipping into a cylindrical sleeve at one end of a tool-bearing pipe shaft; Where the aly tool can attach on the cylindrical sleeve to allow the displacement tool to move the sleeve longitudinally inside the tubular body. (Kas) that the Lad device includes a first and a second set of passages that extend through the tubular body. The cylindrical sleeve may be placed at a first position covering both the first and second set of passages; a second position covering the first set of passages and exposing the group Second set of passages and a third position that exposes the first set of passages and covers the second set of passages. (Sag) The second set of passages includes flow channels that run the length of the tubular body and have a filter placed around them. The second set of passages may include a set of outlet nozzles Positioned to direct a fluid flow into the outer space of the Well assembly id Nozzles may be oriented so that they are substantially parallel to a central axis of the tubular member (Sag) The shifting tool shall include a body with a central bore extending through it and an outer surface; at least one displacement bore extending from the central bore 5 wherein each shifting bore having an actuating piston housed in it and a first key bore and a second main bore extending s inside from the outer surface. The offset load may comprise a first and second piston keys placed within the first main bore and the second main bore where both the first piston key and the second piston key have a surface on which the cylindrical sleeve is attached spaced at a distance chosen to hold the A 0 cylindrical between them. Both the first plunger wrench and the second plunger wrench may be operationally connected to the actuating piston so that it extends from the outer surface when the central bore is supplied with pressurized fluid (Kay). Operational with a shaft shared by arms extending from the shaft Shaft 5 The shaft and shafts 80015 can be contained within a chamber in the body The chamber may be in fluid contact with

The outer surface of the body through the balancing cavity. (Sag) The balancing bore must include a filter inside. The shaft can be steered to push the first plunger wrench and the second plunger wrench into a bound position. (Sarg) Shaft steering by means of at least one 501000 spring that guides a spring arm extending from the shaft The spring can be located inside a spring cavity that extends from the outer surface of the body and is compressed between the adjusting cap (Jaca ul) spring arm placed inside the spring cavity. spring bore and the central passage may include at least one annular groove within it corresponding to a desired location for the sleeve valve wherein the cylindrical Al has a retaining ring 109 0 placed around it (Sag received within the single annular groove on The retaining ring may include a slip ring surrounding the cylindrical sleeve that includes a biasing spring diagonally between the 109 lg split cylindrical sleeve and the slip ring and the diagonal biasing spring can be located within an annular groove around the sleeve cylindrical It could be for h The annular g has inclined side walls and where the diagonal bias spring has a bias force 5 chosen to be held within the groove (lal) once a predetermined displacement force is applied to the tool spring. Brief explanation of the drawings in the figures illustrating embodiments of the invention where similar reference symbols indicate identical parts in each view. Figure 2 is a perspective view of one of the control valves shown in Figure 1. Figure 3 is a longitudinal cross-sectional view of the control valve shown in Figure 2 taken along line 3-3.

Fig. 4 is a detailed cross-sectional projection of the extendable ports of the valve shown in Fig. 2 in first position or bound position. FIG. 5 is a detailed cross-sectional projection of the extendable ports of the valve shown in FIG. 2 in the second or extended position with the f Ll cylindrical valve in the open position. Figure 6: It is a cross-sectional projection of two gyal segments raised from the valve body shown in Figure 2 showing a system for controlling a fluid to expand in an axial direction. Figure 7: A cross-sectional projection of the control valve shown in Figure 2 taken along line 7 R. Figure 8: An axial cross-sectional projection of the control valve shown in Figure 2 taken along line 8 - 8. Figure 9: A cross-sectional projection of the valve Shown in Figure 2 taken along line 3 -3 Cus shows an offset tool placed in it. Fig. 10: An axial cross-sectional projection of the offset tool shown in Fig. 9 taken along Lal 10 - 10. 5 Figure 11: A longitudinal cross-sectional projection of the offset tool shown in Fig. 9 taken along line 11 - 11 shown in Fig. 10 Wherein there is a control valve placed in them according to one of the embodiments wherein the cylindrical sleeve clutching members are present at first or bound position. Figure 12: It is a cross-sectional projection of the displacement tool shown in Figure 9 taken along line 1-11 where there is a control valve placed in it according to one of the models where the cylindrical sleeve engagement members are present at a second or extended position. Figure 13: It is a cross-sectional projection of a control valve according to another model for operating members that

Figure 14: It is a cross sectional projection of a control valve according to the AT model to operate the members that are connected with the cylindrical sleeve in an open position. Figure 15: A schematic view of a system for controlling fluid flow through a wellbore. Figure 16: A cross-sectional view of a sealant for use between tool parts in a blister pit. Fig. 17: It is a perspective form of a displacement device according to the AT model. Figure 18: It is a perspective form of a control valve according to another model of the present invention. Fig. 19 is a cross-sectional projection of the control valve shown in Fig. 18 taken along line 19-19 where the cylindrical AN is in first position. Fig. 20 is a cross-sectional projection of the control valve shown in Fig. 18 taken along line 0 19-19 where the cylindrical sleeve is in a second position and includes an offset device located in it. Figure 21 is a cross-sectional projection of the control valve shown in Figure 18 taken along line 19-19 where the cylindrical sleeve is in a third position. Fig. 22 is a detailed cross-sectional view of the annulus and annular notch of the control valve shown in Fig. 19. 5 Fig. 23 is a cross-sectional view of the filter section of the control valve shown in Fig. 21 taken along line 23-23. Figure 24 Ble shows a perspective view of a control valve according to the AT model of the present invention. Figure 25 is a cross-sectional view of the control valve shown in Figure 24 taken along line 25-25. 0 FIG. 26 is a cross-sectional projection of the offset tool shown in FIG. 20 taken along the longitudinal axis of the valve body and offset tool.

Figure 27 Ble for a cross-sectional plan for the displacing tool shown in Figure 26 taken along line 27-27 Figure 28 Ble for a cross-sectional plan for the displacing tool shown in Figure 26 taken along line 268-8. Detailed description:

Referring to Figure 1, wellbore fi sis 10 was excavated in earth 8 until production zone 6 was reached by known methods. Production Area 6 can contain a horizontally extending hydrocarbon-bearing formation or it can accommodate a group of hydrocarbon-bearing formations such that ll 10 includes a path designed to cross or intersect each formation. And as it is

0 shown in Figure 1; A full bore includes a vertical section uly section 12 having a valve assembly or Christmas tree 14 at the upper die and a lower section or production section 16 which can be horizontally or angled oriented relative to the horizontal direction within the production area 6. After the completion of drilling hole A 10, the production tubing drilled 20 for the hydrocrion well is formed from a group of

5 Alternating liner or casing sectors 22 and valve bodies in the production line 24 that are surrounded by a layer of cement 23 between the casing and the wellbore. The valve bodies 24 are configured to control fluid flow from the surrounding formation close to that valve body and can be located at predetermined positions to correspond to a desired production area within the blister bore. and when running; Between 8 and 100 can be used

0 Valvular bodies within a peritoneal fossa although it is recognized that other numbers may also be useful. Turning now to Figure 2; A perspective view of a single valvular body 24 is shown. The valvular body 24 includes a greatly elongated cylindrical outer shell 26 extending between the first and second ends 28 and 30; On the order and includes a central jae central passage 32 through it. Complete

The first end 28 of the valvular body is connected to an adjacent liner or casing segment 22 by means of internal threads at the first end 28. The second end 30 of the valvoid body is connected to an adjacent casing segment by means of external threads around the second end 30. The valvoid body 4 also includes a central gia central portion 34 has a set of elevated segments 36 extending axially along its length with passages 37 between them. As shown in the accompanying figures; The valvular body 24 includes three raised segments, although it can be realized that a number can also be used. Each elevated segment 36 includes a port body Mic 38 inside which has an opening 40 extending ADA and opening 40 extending from the outer space to the inner space of the valvular body and is It is configured to provide 0 a path for the fluid between the inside of the downsegment 16 and the ll bore 10 as will be described in detail below. Hole 40 can be filled with a sealing body ne (shown) when fitted inside lower glad 16. The sealing pill helps seal the hole until the formation is cracked and will therefore have enough strength to stay inside The orifice until then it will also be sufficiently malleable that it is broken and removed from the orifice during the hydraulic fracturing process. and by 5 additionally; The port bodies 38 are diagonally extendable from the valvular body so that an outer surface of them is interlocked against the pustule hole 10 in order to center the valve body 240017 and thus the production sector inside the pustule hole. Turning now to Figure 3; A cross-sectional projection of the valvular body 24 is shown. The passage (GHA 32 of the valvular body) includes a central gia 42 corresponding to the position of the port bodies 38. 0. The central part is largely cylindrical and has a sliding cylindrical o£ sleeve 44 in. Central galll 42 is located between on first rise or eda entering second high syns or exit part or annular shoulders dala 46 and 48 respectively. 44 is shiftable Ugh within the central part 42 to become adjacent to either the first shoulder or the second shoulder 46 or 48. At a position adjacent to the second shoulder, the sliding cylindrical sleeve 5 44 seals the openings 40 in order to isolate the interior space

and the outer space of the lower sector 16 apart from each other; Whereas, when the sliding cylindrical sleeve 44 is adjacent to the first shoulder 46, the cylindrical sliding sleeve 44. The central galll 42 has a first annular groove 150 in it near the first shoulder 46. The cylindrical sliding sleeve 44 has a diagonally positioned snap ring 52

Inside it corresponds to notch 150 so that it joins with it and retains a sliding cylindrical sleeve 44 near the first shoulder 46 which is in the open position of the valvular body 24. The central part 42 also includes a second Gila notch 50b inside it near orifice 40 having a similar shape to the first annular notch 50a . The occlusal ring 52 of the cylindrical sleeve can be received either in the first annular groove 50a or the second 0b so that the cylindrical sleeve is installed either in the open position as shown in Figure 5 or in the

0 closed as shown in Figure 4. The sliding cylindrical sleeve 44 Lad has annular wiper fluids 54 ly which will be described in more detail below near either end to maintain a tight leakage of fluid between the sliding cylindrical sleeve and inside Central segment 42. The port bodies 38 are received by sliding into the valvular body 24 so that they are able to extend diagonally from it. As shown in Figure 3, the port bodies are in their bound position

5 so that an outer surface 60 of the port bodies aligns with an outer surface 62 of the raised sectors 6. Each raised section may also include limit plates 64 placed on each side of the port bodies 38 which overlap with ohn and retain the pistons within the cylinders as appropriate ali described in more detail below. Each high glad 36 has one on BY) blank area or cylinder 66

0 placed diagonally inside it. Each cylinder 66 has a piston 68 inside which is operationally connected to the corresponding Mie body 38. Turning now to Figures 4 and 5; Detailed projections of the body of one port 38 are shown in bound and extended mode; Respectively. Each port body 38 may include opposing pairs of pistons 68 attached to them positioned so as to correspond to the longitudinal sides of the valve body 24. It will be seen that other numbers may also be used.

5 of the pistons 68 per port body 38. The pistons 68 are connected to the valve body by a plate

Upper 70 has an outer surface 72. By having the outer surface 72 so that the outer surface 62 corresponds to the raised segments 36 it provides a surface in close contact with it when the port bodies 8 are in their bound positions. The outer deck 72 also includes 4-sloped end sections to provide a ramp or sloping surface at each end of the port body 38 when the port 38 hulls are in the extended position. This will enable the valve body to be displaced longitudinally within the Si 0 bore where the vertical section 12 is under thermal expansion of the shaft of the tubes and thus reduce any shear stresses on the port body 38. The pistons 68 are able to move diagonally within the cylinders relative to a central axis of the body valvular so as to be able to extend diagonally from it. in the extended position shown in Figure 5; 0 The outer surface 72 of the port bodies is prepared to be in contact with the blister hole 10 so as to extend the port body 38 Jills bring the Jal hole 10 into fluid contact with the central all 42 of the valve body 24. The pistons 68 can have a spacing Move between conjoined and extended positions between 0.254" and 1/2" although it should be noted that other distances are also possible. in the extended position; It will be possible to fracture at that location without 5 also having to fracture the concrete which will be present between valve body 24 and the blister bore wall thus reducing the fracture pressure required. log additional syntax; More than one port body 38 may be used and placed diagonally around the valvular body in order to center the valvular body within the hole ll when the port bodies are extended from it. (Sang) that the pistons 68 have seals 76 around them to seal and prevent leakage from around the piston into the cylinders 66. Additionally, the port body 38 may include a cylindrical port sleeve 78 extending diagonally inward through a corresponding port bore 81 within the valve body A mile leak 80 can exist between the cylindrical sleeve of port 78 and the cavity of port 81 in order to provide a pile of tight fluid leakage between them.An occlusal ring 82 can be provided inside the cavity of port 81, prepared to rest diagonally inwards on the cylindrical AU of port 78. In Extended position; occlusal ring compresses

2 diagonally inward to provide a shoulder on which the cylindrical sleeve of the port 78 can rest in order to prevent joining (retraction) of the body of the port 38 as shown in Figure 5. The pistons 68 can be displaced inside the cylinders 66 by inserting a pressurized fluid in a lower part of it. As shown in Figure 6; A fluid control system is shown to provide pressurized fluid to the lower hall of the cylinder 66 from the valve body interior

4. In this way a fluid pumped into the center of the lower section 16 can be used to extend the port bodies 38. The fluid control system comprises a fluid bore 90 extending longitudinally within the raised section 36 between the entrance bore 94 and a pair of connecting bores The spaced pistons 92. The connecting bores of the piston 92 cut the bottom (eal) of the cylinders 66

0 while the inlet bore extends into the central passage 32 of the valve body 24. The fluid bore 90 may include a relief check valve 96 in it to serve only for pressure conditioning in the cylinders 66 when a fluid of sufficient pressure is pumped into the shaft . And when operating », a user can choose the throttle valve 96 with the desired operating pressure, which can range between 3.44738 MPa and 13.79 MPa, where the pressure ranges from

5 Between 6.89 MPa and 8.27 MPa is particularly useful. Other pressures that are sufficient to center valvular body 24 within the pustular fossa may also be selected. This pressure may be referred to as extension pressure. The fluid control system also includes a vent hole 98 extending from the fluid bore 90 to the outer surface of the valve body 24. As shown in Figure 8; The recesses of the piston connection 92 can be formed by drilling in the raised section 36 in order to cut both

The fluid cavity 90 and the cylinder 66 and then filling the outer part of the piston connection cavity with a piston connection plug 93 or the like. The relief bore 98 includes a relief check valve gla 100 inside and is conditioned to relieve pressure within the fluid control system and to ensure that the pressure inside it as well as within the lower gill of cylinders 66 does not reach a pressure that could cause ruin

5 device. Specifically, as the expansion pressure will be chosen to be Laas less than the required pressure

to crack the composition; or crushing pressure; It will be necessary to ensure that such a higher cracking pressure will not cause the cylinder to fracture when it is applied to the inside of the lower section 16. The cracking pressures are known to be often 68.95 MPa or higher and therefore the 100 throttle relief valve can be selected to have an opening pressure of between 34.47 MPa and 55.16 MPa. Referring to Figure 3; Entrance bore 94 intersects the central passage 32 of the valve body 24. As shown each entry bore 94 can be covered with a knock-out plug 102 to seal the entry bore until it is removed. playback; When the concrete is pumped into the lower section 16, it will be followed by a stopper so as to provide an end to the concrete block. 0 The plug is pressurized by pumping a fluid (such as water, as a non-exhaustive example) to force the concrete into the production tube shaft and then to extrude it into the annular space between the horizontal section and the blister pit. Impact plugs 102 are designed to be removed or expelled out of the entry cavity by passing the concrete plug. In this way; Once the concrete has passed the valve body 24; The concrete seal shall remove the ram seals 102 to condition the pressure in the inlet bore 94 5 and the fluid bore 90 and thereafter to extend the pistons 68 from the valve body 24 once the pressure conditioning fluid has reached sufficient pressure. With reference to Sa 7 85) an axial cross-sectional projection of the valve body 24 through the center of the bore 40 and the port body 38 and through the center of the pistons 68 is shown, respectively. Each elevated segment 36 comprises a balancing bore 110 extending substantially Parallel to the central 0 axis of the valve body 24. The balancing bore 110 extends between and the entry end 114 (shown in Fig. 2) and the connection bore 112 extends to the port bore 81. The balancing bore 110 can include a piston inside and is pre-filled With a fluid such as oil, as a non-exhaustive example, and when operating, the balancing cavity 110 works to equalize the pressure inside the cavity port 1 when the body of the port 38 of the valve body 24 is extended. Specifically, when the body 5 of the port 38 of the valve body is extended, a negative pressure will be generated within the space between the cylindrical sleeve

The enclosed slide 44 and the sealing body (not shown) placed inside the hole 40 when the size of that space is increased. The balancing cavity 110 reduces this negative pressure by providing an additional fluid inside it to be drawn into the cavity of the port 51 to fill this volume and balance the pressure inside it with the pressures to the external space of the valve body 24. As shown in Figure T

The connection cavity 112 can be formed by drilling in the raised section 36 in order to cut both the balancing cavity 110 and the outlet cavity 81, and then the outer part of the connection cavity is filled with a plug 116 or the like. Turning now to form 9,; An offset 200 is shown within the central passage 32 of the valvular body 24. The offset 200 is conditioned to couple with the sliding cylindrical sleeve 44 and perform

0 by shifting it between a closed position as shown in Figure 9 and an open position in which the orifice cover 40 is exposed by means of a sliding cylindrical sleeve 44 in order to allow fluid to flow between, inside and the outer surface of the valve body 24 as shown in Figure 5. The displacement device 200 comprises a long, tubular, cylindrical body To a large extent 202 extends between the first and second extremes 204 and 206; Respectively. The offset tool 200 has a central bore 210 through it (shown in Figures 10 through

5 12) To receive an actuator or to allow the passage of fluids and other tools through it. The offset device 0 includes at least one sleeve coupling 208 capable of extending diagonally from the tubular body 2 so as to be able to engage optionally with the sliding cylindrical sleeve 44 of the valve body 24. As shown in the accompanying figures; Three interlocking members of a quantity 8 are shown although it may be recognized that other numbers may also be useful.

0 Engaging members Ll 208 comprise elongated members that extend substantially parallel to central axis 9 of offsets between first and second ends 212 and 214; Respectively. The first and second parties 212 and 214 include the first and second catches 216 and 218; respectively to surround the sliding cylinder A and engage first end and second end corresponding 43 or 45; On the sliding cylindrical AU arrangement 44 depending on which direction the offset tool 200 is displaced inside the body

5 Valve 24. As shown in Figures 11 and 12; It includes both the first and second clamps

3216 218 for sleep engaging member 208 on Jil surface 0 and 222; respectively, they are directed in opposite directions from each other. The inclined surfaces 220 and 222 shall be fitted to engage either the first or second annular shoulder 46 or 48 of the valvular body when the offset 200 is pulled or pushed into it. The first or second annular shoulder 46 or 48 is pressed against the first or second inclined surface 220 or 222 diagonally inward in order to press the dell clutch members 208 inward and thereby disengage the Gael members 208 from the sliding cylindrical sleeve 44 when the sliding cylindrical sleeve is displaced 44 to a desirable position near one of the ring shoulders. In an optional embodiment, one or both of the catches 6 or 218 may have an extended length as shown in Fig. 17 so that the engagement members 0 quantity of the sliding cylindrical sleeve are disengaged at a position spaced from one between the first or second annular shoulder 46 or 48 It is thus adapted to place the sliding cylinder (Kl) at a third or central position within the valve body 24. By turning now to figure 10 the engagement members (Lull) are kept parallel to the tubular body 2 of the offset tool 200 by means of a parallel shaft 230. Each parallel shaft 5 230 is joined to a sleeve engaging member 208 by means of a pair of spaced apart linking arms 232. The parallel shaft 0 is loaded so as to be able to rotate within the tubular body of the offset tool 202 by center bearings or similar. The linking arms 232 are fixedly attached to the parallel shaft 230 at the fringe end and are received into the blind bore 234 of the connecting members quantity 0 208. As shown in Figure 9; The Tall arms 232 are longitudinally spaced from each other along the parallel shaft 230 and the sleeve engaging member 8 so as to be near the first and second ends 212 and 214 of the sleeve 208. Turning now to Figure 11, the tubular body 202 of the tool The offset has an offset bore 226 within it at a position corresponding to each sleeve coupling The offset bore 226 extends from a cavity receiving 5 sleeve couplings up to the center bore 210 of the offset tool 200. Each engaging member includes

Quantum 208 on a piston 224 extending diagonally from it where it is received inside the displacement cavity 226. When operating; The pressure of the fluid applied to the central cavity 210 of the displacement tool will be applied to the piston 224 in order to extend the piston inside the cavity of displacement 226 and thus to extend the dual engagement members 208 from a first position or a bound position inside the tubular body of the displacement tool 202 as shown in Figure 11 second position or an extended position of engagement on the sliding cylinder sleeve 44 as explained above and shown in Figure 12. The parallel shafts also have helical springs (not shown) on them to guide the sleeve engagement members into the engaged position. The first end 204 of the offset tool 200 had internal threading 236 in it for attaching to the outer threads of the end of a pipe column or production pipe 0 (not shown). and the second end 206 of the offset tool 200 includes external threading 238 for attaching to the internal threads of a dimensional tube shaft or other tools; Jie as a non-exhaustive example” control valve as will be explained below. An end cap 240 may be located above the outer thread 238 when such a dimensional tie is not used. With reference to Figures 11 and 12; The UL 300 control valve is on the UL model housed within a 5 200 offset tool for use in wells with low hydrocrion production flow rates. The low flow control valve 300 includes a valve housing 302 that has a valve passage 304 through it and seals 344 around it to seal valve housing 302 within the offset tool 200. Jang Low flow control valve 300 has a central extension of the housing 306 that extends axially Within the valve passage 304 gag spring housing portion 320 after center portion 310. 0 The center extension of the housing 306 included an end cap 308 separating an entry end of the valve passage from a center portion 310 of the valve passage and an entry hole 322 to allow entry fluid to the centerpiece 310 of the valve passage 304. The centerpiece 310 of the valve passage contains a valve piston rod 2 that can be positioned by sliding into it. The 312 valve piston rod includes a front 5-piston and a rear 5-piston; 314 and 316; On the arrangement it is in sliding, leak-proof contact with

The central part 310 of the valve passage. In the front piston shape 314 a first chamber 313 with end cap 308 has an inlet port 315 that extends through the front piston 314. The valve piston rod 312 also includes a forward extension 318 that has an end surface 321 extending from its anterior end and extending through the end cap 308. Valve piston rod 312 It can slide inside the center part 310 between a closed position as shown in Figure 11 and an open position as shown in Figure 12. In the closed position; The second or rear plunger 316 shall be securely located on the end of the centerpiece 310 to seal or seal the end of the center passage Jilly to prevent fluid from flowing through the control valve. dg is the open position as shown in Figure 12; The rear piston 316 can be disengaged from the end of the center section 310 to provide a path for the flow; 0 is generally indicated by the number 319 through it from the center passage in spring housing 50109. Spring 324 is located within spring housing 320 and extends from valve piston rod 312 to orifice plate 326 at lateral end of spring housing 320. Spring 324 guides the valve piston rod 312 in the closed position as shown in Figure 11. Gaskets or the like may be provided between the spring 324 and the orifice plate 326 in order to adjust the force applied by the spring to the valve piston rod 5 312. In other models, the orifice plate can be axially movable inside the body Valved by screws or the like to adjust the force applied by the spring. and when running; Fluid pumped into the production tubing shaft passes into the valve passage 304 through the inlet port and into the center section 310. The fluid pressure is balanced within the center galll 310 on opposite faces of the front piston and rear piston 314 and 316 so that a total pressure of 0 applied to the valve piston rod is provided 312 by pressure applied to the end surface 321 of the forward extension 318 and to the front piston 314 from within the first chamber 313. The resulting force applied to the end surface 321 is counteracted by the bias force provided by the spring 324 as described above. og additive; The orifice plate 326 includes an orifice 328 through it selected to provide a 5 pressure difference across it under a desired rate of fluid flow. And this way; When a fluid flows through a gall

central 310 and spring housing 320; The spring housing 320 will have pressure generated inside it due to the orifice plate. This pressure generated inside the spring housing 320 will be transferred through the holes 0 inside the spring housing to the tightly closed area 332 around the spring housing near the displacement cavity 226 of the displacement tool 200. This pressure works to extend the pistons 224 within the displacement cavity 226 and thus to extend the engagement members duel 208 from the offset tool. Also the pressure

generated inside the spring housing 320 resists the valve piston rod hole 312 so as to open the valve Jang open; It is required that the pressure applied to the entrance of the valve passage 304 overcome both the biasing force of the spring 324 and the pressure generated inside the spring housing 320 by the orifice 328

Valve 300 may be closed by reducing the pressure of the fluid being supplied below the pressure required to overcome the spring 324 and the pressure generated by the orifice 328 so that the spring is allowed to close valve 300 by returning the valve piston rod 312 to the closed position as shown in 11 and also allowing For springs on the parallel shaft 230 by joining the lull members 208 when depressurizing inside the spring housing 320. Load arrestors can be used

5 Sealant 336 as described below to seal the contact between the spring housing 320 and the inside center bore 210 of the offset tool 200. A sheer sleeve 340 may be attached to the outer surface of the valve housing 302 with shear screws 342 or the like. The shear cylindrical sleeve 340 is sized and chosen to be sandwiched between a pipe threaded into the inner threads

internal threading 0 236 for the offset tool 200 and the rest of the offset body. In this way; If necessary, restore the valve.” spherical object 334; like a ball of steel; Mie is commonly known in the industry to drop a production tubing shaft to obstruct valve passage 304 of valve 300. Obstruction of fluid flow through valve passage 304 will create pressure above the valve to shear the shear screws 342 and push the valve through the offset. maybe

5 Selection of shear strength of the screws 342 to prevent shearing during normal operation of the valve 300

Such pressures range from 6.89 MPa to 20.68 MPa for the fluid pressure at the inlet. The valve shown in Figures 11 and 12 is intended for use in a piece with a low hydrocarbon flow rate. in blisters of this kind; The fluid flow of Jie hydrocriones or other fluids is low enough that the fluid pumped into the well to condition the pressure in the part

Central 310 is sufficient to overcome the upward ill flow of fluids to pass through orifice 328. It will be realized that for wells with higher well pressure or higher flow rates; Such an LED would be limited to this application. Turning now to Figures 13 and 14; A second control valve 400 is shown according to another embodiment intended for use in wells with higher flow rates for the production of hydrocrowns. Includes control valve

0 High flow 400 on an external tubular body 402 extending between the first and second ends 404 406 respectively. Inner tubular body 408 resides within outer tubular body 402 having a central passage 410 through it and an annular cavity 412 with outer tubular body. A Lap member 420 that is rotatable on a central axis is attached to the distal end of the inner tubular body 8. The Dall member 420 optionally seals and seals the center pass 410

5 When the flap member 420 is rotated to the first or closed position as shown in FIG. 13. The member Cal 0 can also be rotated to a second or open position as shown in FIG. 14 to allow the passage of fluids and tools through the second control valve 400. Receive elongate longitudinally displaceable sleeve 414 into bore all 412. The sleeve 414 includes an annular piston

Annular piston 0 416 at first end and free second end 418. The second end 418 is connected to the flap member 420 by coupling 422 so that when the COE member 0 is rotated to the open position as shown in Figure 14) The cylindrical sleeve will be extended towards the second end 406 of the control valve 400. Similarly, when the member Sl 420 is rotated to the position Glad) as shown in Figure 13; The cylindrical sleeve 414 is joined towards the end

5 first 404.

The annular piston 416 is located within the first end 424 of the annular bore 412 near the first hall 404 of the valve 400. The first end 424 is in fluid contact with an annular space around the outer space of the outer tubular body 402 as well as the distal end of the control valve 400 through bore bore 426. The annular sleeve 414 is roughly hydrostatically balanced thanks to the same pressurized fluid from the blister bore on the second end 418 of the cylinder sleeve and also on the annular piston 416 inside the first end 424. The annular piston 416 is biased toward the first end of the control valve 400 by means of a spring 430 present within the bore of spring 8 between the annular cylindrical sleeve 414 and the outer tubular body 402. Additionally, the bore of spring 428 may include an inner bore 432 from the central passage 410 in order to permeate or introduce 0 fluid into the bore of spring 428 and thus prevent any fluid contained within from acting as a bias spring last. The force applied to the annular piston 416 can be adjusted by providing one or more shims 434 at the opposite end of the spring of the annular piston 416. At free rest the spring 430 directs the piston towards the first end 404 of the control valve thus keeping the member Sal 420 in closed mode. The flap member 420 5 may be opened by pumping fluid into the production tubing shaft so as to introduce pressurized fluid into its central passage. ass the fluid pressurized by forcing the flapper member 420 to open as shown in FIG. 14 when the flow and pressure of the pressurized fluid is sufficient to overcome the force of the spring 430. The Dal member 420 may optionally include a throttle 436 inside with a plug 438 pressurized in flip member 420 by spring 440 or similar. Lovie 0 subject a closed NE member 420 to downhole pressure greater than the set value of the valve (SA) the jill pressure will displace the plug 438 against the spring 440 in a direction generally indicated by the number 442 in Figure 13. This will then open the GAY valve and allow fluid to flow past the throttling valve in the direction 442. The center pass 410 of the valve also includes internal threads 444 conditioned to be bolted to threads to external threads 5 238 of the offset tool as required. Described above.In such a connection it will be realized that it must be removed

End cap 240 of the sleeve member to allow access to the outer threads 238. When operating; The control valve 400 operates the Lf engagement members of the displacing tool by supplying pressurized fluid to the joint passage through the displacing tool 200 and valve 400. When the center pass is pressurized to GIS pressure by fluid pumped into the production piping shaft;

The fluid from the central passage forces the flip member 420 to open. The fluid will then be required to be pumped into the feedstock in a sufficiently high volume so as to maintain pressure within the feedstock at GIS pressure to act on the pistons 224 and to extend the engagement members (Lael) 208.

0 and now convert to form 15; A schematic view of a system according to the invention Ja is shown. The system may include one or more valve bodies 24 placed within a lower segment 16 as described above. When operating, a user can extend the offset tool 200 in the lower sector to displace the sliding cylindrical sleeve 44 at the end of the production sleeve 21. The offset tool 200 can be actuated either by the first valve 300 located inside the offset tool 200 or by the second valve

5 400 which is located on the far end of the offset tool. Referring to Fig. 16, one or more of the 460 seals for use with the above system may include a first and second spacer 450 and 452; Respectively. The first notch to receive the wiper 454” is sized as a diagonally compressible slat ring with a hole in it as is generally known in the art. As shown. A scanner can have 454 radii

0 uncompressed greater than the radius of the first notch 450 to provide a diagonal space into which the wiper can be compressed. The second notch is sized to receive a vulcanized rubber seal 456 inside so that a gap is left; Commonly indicated by the number 458 between seal 456 and the sides of the second groove 452. Wile dad seal 456 can be domed so that when the seal encounters an opposite surface (not shown) the seal presses down into the second groove to fill

5 gaps 458. The gaps 458 can be with a pitch of 0.0254 cm

and 1/2 inch although it can be recognized that gaps of other distances can also be used. When the sealant encounters a void in the opposing surfaces; For example at a port or the like it allows the leaking fluid to expand into its uncompressed form to restrict the volume of fluid that may be allowed to pass into the port.

Turning now to Figures 18 through 21, a perspective view of the valve body 500 is shown according to another embodiment of the present invention. The valve body 500 comprises a greatly elongated cylindrical outer shell 502 extending between the first and second ends 504 and 506; It includes, respectively, a central corridor 508, through which it extends along the 509 axis between the first and second ends 504 and 506. The first end 504 of the valve body is connected to adjacent liner or casing segment 22 by means of screw threads

0 internal or external 510 at first end 504. ping connect second end 506 of valve body 502 to an adjacent filter segment by means of internal threads (as shown in FIG. 19) inside second end 506. Valve body 500 also includes a first group and a second group from ports 512 and 514; On the order through it (only the first group of ports 512 is illustrated in Figure 18).

5 The second set of ports 514 may be formed by an insert 540 placed intracavity 2 through the valvular body wall. Inserts 540 may have throttle holes 544 within which to select to maintain a desired pressure the second set of ports 514. The valve body 500 may include an outer cylindrical sleeve 550 extending alga so as to seal the second set of ports 4 on the second end 506 of the valve body 500 and form annular cavity 552 between them. And as

0 shown in Figures 19 through 21; The second end 506 of the valvular body 500 comprises a set of transmitting cavities 554 through it between the outer and inner surfaces of the valvular body 500.

LS; shown in Figures 19 through 21. The valve body may also comprise a filter segment 560 affixed to the second end 504 of the valve body 500. The filter segment 560 5 is formed by an inner tubular body 562 affixed to the inner surface of the valve body 500 closer to the end

The first 504 is of the transmitting bores 554. The filter section also includes an outer tubular screen 564 extending from the second end 506 of the valvular body 0 with filter media 566 between them. The filter media can be any suitable filter type; JES (Jie) other than “Gran” slotted tube; perforated tube; barrel sleeve wire (agile) packed meshes MeshRite™ (lise) or Sag FracRite™ perforation

External tubular grille 564 or having a set of holes 568 through it. As shown in Figure 23; The inner tubular body 562 may include a set of longitudinal notches 0 on its outer surface extending into the carrier bores 554. When operating; Fracking fluids or hydrocarbons are allowed to flow through

0 holes 568 and filter medium 566 so as to filter; Sifting or removing particles while allowing fluid to collect within the slits 570 and then directing it to the second set of ports 514 through the conveying cavities 554 and the annular cavity 552. As shown in Figure 19; The valve body 500 includes a longitudinally movable cylindrical sleeve 530 which can be located so as to prevent fluid flow through the first group and group

5 second from ports 512 and 514. The cylindrical sleeve 530 includes an alls ring to expand diagonally 532 around it. Jag inner surface 515 of the valvular body on first, second and third annular notches 516; 518 5205 where the size of each of them is determined to receive episode 532 inside it. The positions of the first, second, and third ring notches 516, 518, and 520 correspond to the positions at which the Lf sealing cylindrical sleeve may be present for one or both of the first and second sets of ports. Optionally, it is possible

That the valve body 500 includes only one set of ports 512, whereby the cylindrical sleeve 530 can be moved sliding between the first and second positions to close and open the ports 512. Referring to Figure 22; The cylindrical sleeve 530 has an annular groove 534 inside of it, sized to receive the ring 532. A diagonal bias spring 536 is located under the ring 532 inside the groove 4 to direct the ring in an outward diagonal direction. Examples of these springs can be mentioned spring

5 wave is manufactured by Smalley Steel Ring Company and grooves can be formed

ring 516; 518 and 520 with a largely flat surface and lower hall 522 with walls inclined at an angle of 4 on either side of it. Ring 532 can be configured to closely match the shape of the ring grooves. It will be seen that while moving from one position to another that the 4 angled walls rest on the ring 532 so as to compress the ring diagonally inward when sufficient longitudinal force is applied to the shaft of the tool tubes. The spring strength of the 536 can be selected to provide sufficient force to prevent any unwanted movement of the SU of the cylinder outside the groove in which it resides. This displacement can be selected to range from 227 kg to 6803 kg bt. It can also be realized that when such a LS force is applied to eject the sleeve from the ala groove, the resulting rapid movement of the aly tool and the roller sleeve will cause a pressure wave in any of the fluids within the blister. The 0 pressure wave can be monitored and measured by conventional means to inform the user that the cylindrical sleeve has been ejected from the notch. As shown in Figure 19, the cylindrical sleeve 530 can be located so that the ring 532 is located inside the second annular notch 518. In such a situation both the first and second group of ports 512 and 514 will be closed and no fluids will be allowed to flow into or out of the 5 valve. In such a situation, the region corresponding to this valve will be closed.As shown in Fig. 20, the cylinder sleeve 530 can be located so that the ring 532 resides within the third annular notch 520. In such a situation, the first set of ports 521 will be opened and the Second set of ports 514. This position can be useful for hydraulic fracturing of the region corresponding to this valve as the hydraulic fracturing fluid is allowed to flow through the first set 0 of ports 512 in a direction generally referred to as 574. As shown in Figure 21) The barrel sleeve 530 is located so that the ring 532 is inside the first annular notch 6 so that the first group of ports 512 is closed while the group All) of ports 514 is exposed. The slits 570 in a direction generically referred to as 576. The fluid that has been shunted 5 is then collected through the transfer ports 554 in a direction generically referred to as 578 and through the group

The second of ports 514 is in a direction referred to as dale by the number 580. This Jie can be

The design is useful for fracturing fluid collection or during production from that area.

Turning now to Figures 24 and 25; An optional embodiment of the present invention that includes outlets is shown

Fluid injection nozzle. The valve body 500 may include a set of protruding bodies 590 extending die having a first set of ports 512 located between them. And as described in

Figure 25 Protruding objects 590 have a second set of ports 514 in them where they are located

An angular tube extends from it to an enlarged part 594. And an enlarged part 594 can accommodate a nozzle body

6. A plug or other object in it. The Nozzle 596 body can include the Nozzle 598 through it for routing

The fluid pressed into the blister.

0 and as mentioned above; The cylindrical sleeve 530 can be located so that the ring 532 is located inside the second annular groove 518 as shown in Figure 25 in order to close both the first group and the second group of ports 512 and 514 and thus does not mand any alse to flow into or out of the valve. And in such a situation; The area corresponding to this valve will be closed. The cylindrical sleeve 0 can also be located so that the ring 532 is located inside the first annular notch 516 so that the group is closed

The first 5 of ports 512 is exposed while the second group of ports 514 is exposed. In such a situation the fluids are allowed to flow through the mesh of the second group of ports and thus be flushed by the nozzles 6 so as to supply a stimulating or flushing fluid to the blisters. The cylindrical sleeve 530 can also be located so that the ring 532 is located inside the third annular notch 520 in order to open the first set of ports 512 and thus release or collect fluids from the wellbore.

0 and now switch to figures 26 through 28; A hermetically sealed shifting tool 0 is shown. As shown in Figure 26 5 27 A hermetically sealed shifting tool 600 comprises a tubular body 602 that does not have holes through it and which does not seal as described in more detail below to prevent any retention fluids or particles inside it. Like the Offset 200 tool described above; The tubular body of the 602 hermetically sealed offset tool extends between the first ends Sly

604 and 606; Respectively. The offset tool 600 has a central bore 0 in it to receive an actuator or to allow fluids and other tools to pass through it. The hermetically sealed offset tool 600 comprises at least one pair of key pistons that couple with a cylindrical sleeve 608 housed within the radial key bores 611. Each pair of key pistons 208 is aligned along the longitudinal direction of the hermetically sealed offset key Each includes a lip 614 oriented towards the other to hold the valve o£ 44 and an inclined surface 616 oriented away from the other to enclose the sliding cylinder Al and engage a corresponding first end and second end 43 or 45; On the arrangement AU the sliding cylindrical 44 depending on which direction the offset tool 600 is displaced within the valvular body 0 24 as above. The inclined surfaces 616 are disposed to engage with either the shoulder 46 or 8 of the valve body when the offset 600 is pulled or pushed into it so as to press the inclined surface 616 diagonally inward so as to press the dual clutch members 608 inward and thereby disengage the quantitative clutch members 608 of Sliding cylindrical sleeve 44 When sliding cylindrical sleeve 44 is shifted to a desired position near one of the ring shoulders. As shown 5 each main press 608 and corresponding main bore 611 can have a circular cross-section; Although it may be recognized that other forms can also be beneficial; like; As a non-exhaustive example; oval shape; terrible; rectangular; triangle or irregular shape. As shown in FIG. 28, each master piston 608 is located so that it is able to slide sealably within its main bore 211 by means of a sliding seal 612 as is known. 0 Like the preceding offset tool 200, each pair is maintained The main pistons 608 are parallel to the tubular aval 602 of the offset tool 600 by means of a parallel shaft 230. Each parallel shaft 230 is connected to a sleeve member 208 by means of a pair of spaced connecting rods 232. The parallel shaft 230 is loaded so that it can rotate Inside the tubular body of the offset tool 2 by means of a coupling 618” center bearings or the like. aig Attach the connecting rods 232 in a fixed 5 shape to the parallel spindle 230 at frib end and piston pins 620 at its distal ends.

The piston pins 620 extend through the distal ends of the Jali arms 232 as well as the main pistons 8 to stabilize the movement of each main piston 608 to the other. It will be realized that the main pistons 608 are kept parallel to each other so as not to hang on other obstructions that may exist in all and like the previous offset tool 200; A hermetically sealed offset tool 600 has an offset recess 226 within it at a position corresponding to each pair of plunger keys 608 which includes a plunger 224 extending diagonally from it as it is received within the offset recess 226. Each piston 224 has a piston housing 630 above it extending longitudinally into each side of the piston 224. The piston pins 620 extend to and are attached inside the piston cover 630 so as to transmit the movements of the piston 224 to each main piston 608. As shown in Figure 26; The hermetically sealed offset tool 600 0 also includes stabilizer springs 632 located between the piston cap 630 and the adjusting heads 634. The adjusting heads 634 can be moved by means of threaded threads diagonally in or out to adjust the bias force on the piston cap 630. As noted above; The stabilizer springs 632 guide the piston housing and thus the piston 224 and the piston 608 switches to the bound position. As shown in Figure 26; Both piston caps are insulated; parallel shaft; 5-arms linkage 232; The piston pins 620 and springs 632 are sealed from the center bore 0 inside chamber 636. Chamber 636 is also sealed against particulate matter to prevent contamination of components. Chamber 636 may include one or more balancing bores 638 extending between chamber 636 and the outer compartment of the displacement tool to allow fluid passage between chamber 636 and outside the tool in order to fluidically balance the chamber and outside (BY). And in these models; 0 The cavity of the balancing 638 will include a 640 filter to prevent entry of any particulate matter as it is generally known. While specific embodiments of the invention have been described and illustrated; Therefore, these models should be considered illustrative only of the invention and not restrictive to the scope of the invention, as it is determined according to the attached protection elements.

Claims (2)

Protection Elements 1- A device to allow selective fluid communication between the inside and outside of the well ji assembly, which includes: a tubular body that extends between the first and second ends and includes a central jae 068 that extends between them and the two ends can be connected The aforementioned first and second of all assembly 5 mentioned so that the aforementioned central passage is in fluid contact with an internal space of said ill assembly; at least one set of passages _which extend through said tubular body between said central passage and an outer surface of said tubular body; A cylindrical sleeve, Sa Sleeve, placed by slipping into the aforementioned central corridor of the body 0 Said valve is fitted to optionally and sealably cover or expose at least one of said group of passages; And the shifting tool can be placed by sliding inside the mentioned sleeve at one end of a pipe column carrying a tool where the said shifting tool can be interlocked on the said cylindrical sleeve so as to allow the said shifting tool to move the said cylindrical sleeve longitudinally within the said tubular body; a first and a second set of passages which extend through the said tubular body; Whereas the said second group of passages includes flow channels extending along said tubular body and having a filter located around them. 0 2- The device according to protection No. 1 where the aforementioned cylindrical sleeve can be placed at a first position that covers both the first and the mentioned second group of passages »a second position that covers the mentioned first group of passages and reveals the mentioned second group of passages and a third position that reveals the first mentioned group of passages and covers the second mentioned group of passages. 3- Apparatus according to Claim No. 1 where said second set of passages includes a set of outlet nozzles 0022165 [00116] positioned to direct a fluid flow into said outer space of said well assembly jill. 5 4- The device according to Claim No. 3, Cus, the aforementioned nozzles are directed to a large extent parallel to the central axis of the aforementioned tubular member. 5- A device to selectively allow fluid contact between the inside and outside of a well assembly, comprising: 0 A tubular body that extends between the first and second ends and includes a central sia passage between them. ; at least one set of passages _which extend through said tubular body between said central passage and an outer surface of said tubular body; 5 sleeves that can be placed by sliding into the aforementioned central passage of the aforementioned valve body, prepared to optionally and in a leak-proof manner cover or expose at least one of the aforementioned group of passages; And the shifting tool can be placed by sliding inside the said cylindrical sleeve at one end of a pipe column carrying a tool where the said shifting tool is interlockable 0 on said cylindrical sleeve to allow said displacement tool to move said cylindrical sleeve longitudinally inside said tubular body; Where the aforementioned displacement tool includes: a body with a central bore extending through it and an outer surface; At least one shifting bore cavity extends from the aforementioned central cavity where each cavity is 5 offset has an actuating piston located in it; a first principal cavity and a second principal cavity extending diagonally inward from said outer surface; And — 0 3 — First and second piston keys placed inside the aforementioned first main cavity and the second main cavity where each of the aforementioned first and second piston keys have a surface to which the cylindrical sleeve ©5667 is attached and with a distance chosen to hold the aforementioned cylindrical sleeve between them where both are connected The aforementioned first and second piston keys when operating with the aforementioned operating piston so that it is extended from the aforementioned outer surface when the aforementioned central bore is supplied with pressurized fluid. 6- The device according to Clause No. 5 where each of the mentioned first and second piston keys and the said operating piston are connected when operating to a common shaft 0 50888 by means of arms extending from the said shaft. 7- The device according to Clause 6 Cus, the aforementioned shaft and the aforementioned 5 arms are connected inside a chamber in the aforementioned body. 5 8- The device according to Claim No. 7 where the aforementioned chamber is in fluid contact with the aforementioned external surface of the aforementioned body through the balancing bore. 9- The device according to Claim No. 8 Cus. The said balancing bore includes: filter inside it. 0- The device according to Clause 7 whereby the aforementioned shaft is directed to push the aforementioned first and second piston keys into a bound position. 1- The device according to Clause No. 10 where said shaft is guided by 5 springs 501100 and at least one drives arm spring 501109 extending from said shaft. 2- The device according to Claim No. 11, where the mentioned spring is placed inside a spring cavity that extends from the mentioned outer surface of the said body and is compressed between the said spring arm and the adjusting cap placed Jala in the said spring bore. 3- The device according to protection element No. 12, where the aforementioned adjustment head is placed by means of spiral teeth inside the aforementioned spring bore. 4- The device pursuant to claim No. 1 where said central passage 0 includes at least one annular notch inside of which corresponds to a desired position I of said cylindrical where said sleeve includes a retaining ring placed around it and can be received inside At least one annular groove mentioned. 5- The device according to Claim No. 14, where the retaining ring mentioned 5 includes a sliding ring surrounding the mentioned sleeve and has a diagonal biasing spring between the said split ring and the said cylindrical sleeve. 6- The device according to Claim No. 15, where the aforementioned split ring and the aforementioned diagonal bias spring are located inside an annular groove around the aforementioned cylindrical sleeve. 7- The device according to Clause 15 Cus, the aforementioned annular groove includes inclined side walls and where the aforementioned diagonal bias spring has a biasing force chosen to be confined within the aforementioned annular groove once a specific displacement force, lila, is applied to the tool shaft 11 aforementioned. ] a : a” N k = 0 AY H \ } i 3 1 a 1 ry 1 : k Na 7 SE TS TENE LR Jd 3 SS A \ BSA \ E HN Ra: I) Hay 3 9 Mir) ْ 0 Abs] 1 \ ِ ِ 47 1 ا 5 ) | / 1 1 for | fa aloe 1 e ; / Se } { God [a ES 0 i 1 | b. 0 8 8 ERS a pS a la tat N 25 Phe J © 4 3 4 1 i 5 51 I 1 li Sa i \ l att \ i 1 : sat y = 5 " / b / = 23 3 § 5 a g : 1 8 Y A 08 2 bY kL Cal Ne 7 3 ON BN Be A Atom & i H Sw ] HAE RA 5 1 B T rd { : TR L DDG L 0 EE 1 3 : Fa / a \ TT ei, w for id \ = Nt EY Lo A oN a 3 A Tlln 1 , : 4 NN w= 4 3 \ \ 1 - } JF ay 1 8 : he « 4) A Wal Nf Be yf Oh p — 3 4 — i _ : 2 : NY CN 1 wr [ 2000 N CN g2 l i 8 w ho i | > 1 HAT ZIRE 4 7 L « 1 2 NHA ALLL 3 NE aT 2 NO 0| \ pet. 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