CN104060942B - A kind of high-pressure hose introducing device dark for the brill measured of radial jet technique - Google Patents
A kind of high-pressure hose introducing device dark for the brill measured of radial jet technique Download PDFInfo
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- CN104060942B CN104060942B CN201410281052.0A CN201410281052A CN104060942B CN 104060942 B CN104060942 B CN 104060942B CN 201410281052 A CN201410281052 A CN 201410281052A CN 104060942 B CN104060942 B CN 104060942B
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Abstract
The invention discloses a kind of high-pressure hose introducing device dark for the brill measured of radial jet technique, this device can guide high-pressure hose and shower nozzle to enter stratum smoothly in coiled tubing radial jet technique, and can measure drilling depth; This device is made up of body part, release portion, lock part, hermetic unit, spout part and targeting part.The present invention utilizes that the difference in lock tube is expanding coordinates the release and locking that realize bellows with steel ball, the present invention allows bellows and high-pressure hose to move down when radial jet is holed, make it pass guide head of the present invention smoothly and enter snakelike guider targeting port, thus solving the problem that cannot enter snakelike guider targeting port at high angle hole and horizontal well mesohigh flexible pipe and shower nozzle smoothly; After jet drilling terminates, the present invention can lock bellows immediately, and high-pressure hose cannot be moved up and down, and then solves the problem accurately cannot measuring the radial bore degree of depth in construction.
Description
Technical field
The present invention relates to the auxiliary equipment in a kind of coiled tubing radial jet technique, specifically, relating to a kind of for for guiding high-pressure hose to enter stratum smoothly in high angle hole or horizontal well, and can the high-pressure hose introducing device of Measurement accuracy drilling depth.
Background technology
For the exploitation of old filed, marginal oil field, Low permeable oil and gas reservoirs and coal gas layer, coiled tubing radial jet technology is the well stimulation of conventional a kind of low cost high yield, process pipe string involved by this technology can complete turning to by Vertical dimension horizontal direction in pit shaft, thus realizes horizontal radial boring.This technique enters under generally comprising three times process pipe strings: be for first time by anchor and snakelike guider lower going-into-well by oil pipe string; Be for second time enter target zone position under connecting flexibility bar and drill bit by coiled tubing, and oil reservoir sleeve pipe is windowed; Enter high-pressure injection tubing string formation under being for 3rd time and carry out radial jet boring.This technique institute hole diameter is generally at about 20mm, and hole depth is maximum reaches 100 meters.
One of core tubing string of coiled tubing radial jet technology is high-pressure injection tubing string, and this tubing string forms primarily of coiled tubing, high-pressure hose and nozzle.Current coiled tubing radial bore technology can only be applied to maximum hole deviation and be no more than 30 °, object oil reservoir hole deviation is no more than the well of 15 °, high-inclination directional well and horizontal well cannot be applied to, a wherein very important reason is in high-inclination directional well and horizontal well, and high-pressure hose cannot enter snakelike guider targeting port.Because the high-pressure hose external diameter that uses of this technique is much smaller than the internal diameter of snakelike guider at present, and cannot jointing centralising device, because high-pressure hose amount of deflection is comparatively large, flexible, therefore high-pressure hose under enter in the larger well of gradient time easily bend, be difficult to the targeting port aligning snakelike guider.Along with increasing gradually of high angle hole and horizontal well, coiled tubing radial bore technique manifests day by day in the limitation of application aspect.On the other hand, according to entering amount under coiled tubing, this technique estimates that the radial direction of down-hole is bored dark usually, but due to high-pressure hose amount of deflection comparatively large, easily curling accumulation above snakelike tank, the error of estimated value is comparatively large, makes the measure effect of reservoir improvement be difficult to accurate evaluation.
Summary of the invention
What the present invention solved is cannot enter snakelike guider smoothly at high-inclination directional well or horizontal well mesohigh flexible pipe, also cannot the technical problem of the Measurement accuracy radial jet degree of depth, there is provided a kind of in coiled tubing radial jet technique, for guiding high-pressure hose to enter snakelike guider smoothly, simultaneously can the accurate high-pressure hose introducing device of Jet Penetration Depth under measuring well.
In order to solve the problems of the technologies described above, the present invention is achieved by following technical scheme:
For the high-pressure hose introducing device that the brill measured of radial jet technique is dark, this device is made up of body part, lock part, release portion, hermetic unit, spout part and targeting part;
Described body part comprises central tube, described central tube upper port is used for being connected with coiled tubing, described central tube upper outside is connected with outer set upper side and is furnished with an O type circle and formed and seal, the external surface of described central tube is provided with sealing surface, for with piston inside sealing surface and the 3rd O type circle form movable sealing, the middle part of described central tube is provided with pressure transmission hole above its sealing surface, lower pressure transmission hole is provided with below its sealing surface, described central tube is also provided with equally distributed steel ball hole in the below of described lower pressure transmission hole, described steel ball hole is used for steel ball is embedded wherein,
Described release portion comprises described piston and described overcoat, is provided with the 3rd O type circle inside described piston, and outer upper is provided with the 2nd O type circle, outer lower portion is provided with the 4th O type circle; The width of piston upper surface is greater than the width of lower surface, the external diameter that simultaneously piston is formed after installing the 2nd O type circle is greater than the external diameter formed after piston installs the 4th O type circle, moves down for being subject to downward making a concerted effort after making piston pressure transmission hole and described lower pressure transmission hole importing liquid on described; Described piston integral assembling is outside at described central tube, seals the annular space between described central tube and described overcoat; Described top land is positioned by described the expanding of central tube upper outside; Be provided with in the middle part of described piston outside positioning step, outside this positioning step can described piston move down process overlap with the inner side positioning step of described overcoat and make described piston stop movement; Described overcoat upper interior end mouth is connected with described central tube and seals, and bottom inner port is connected with connector and seals; Described overcoat middle and upper part corresponds to the balance pipe that the position at described piston place is provided with the internal and external pressure balance making described overcoat;
Described lock part comprises lock tube, described steel ball, pad, spring, connector and has the bellows of Wave crest and wave trough structure; Described bellows is penetrated by described central tube upper port, and through described connector, variable buckle joint on coiled tubing connects in pipe arrangement; Described lock tube is sleeved on described central tube outside and is positioned at below described piston, is positioned by described piston simultaneously; Described lock tube inside be provided with from the bottom to top less and larger two expanding, the monolateral difference of less expanding internal diameter and described outside diameter of bel is less than the diameter of described steel ball, bellows and high-pressure hose is locked to make this less expanding can cooperation with steel ball, the monolateral difference of internal diameter more expanding and described outside diameter of bel is greater than the diameter of described steel ball, discharges bellows and high-pressure hose to make this more expanding can cooperation with steel ball; Ultimate range between the described outside positioning step of described piston and the described inner side positioning step of described overcoat is greater than the distance of step in lock tube inner face and lock tube; Described pad and described spring are sleeved on described central tube lower outside successively, and its top is carried out spacing, bottom by described lock tube bottom face and undertaken spacing by described connector top end face; Be connected with sealing drum by pipe arrangement on coiled tubing below described connector;
Described hermetic unit comprises described sealing drum, is connected inside described sealing drum upper end with pipe arrangement on described coiled tubing, and adapter sleeve described in lower end inside connects; Described sealing drum inside middle portion has smooth expanding, is provided with hermetically-sealed construction in this expanding position;
Described spout part comprises variable buckle joint, liquid controling pipe line, lower variable buckle joint, high-pressure hose adapter sleeve, high-pressure hose and shower nozzle; Described bellows is connected with described liquid controling pipe line by described upper variable buckle joint, and described liquid controling pipe line connects described lower variable buckle joint, and described lower variable buckle joint connects by described high-pressure hose adapter sleeve the described high-pressure hose that bottom is provided with described shower nozzle;
Described targeting part comprises pipe arrangement and guide head under pipe arrangement on coiled tubing, adapter sleeve, coiled tubing; On described coiled tubing, pipe arrangement is for connecting described connector and described sealing drum; Described adapter sleeve upper end is connected with described sealing drum, and inside is provided with the expanding of oblique angle, and this is expanding for making described lower variable buckle joint from wherein passing through; Described adapter sleeve bottom is connected with pipe arrangement under described continuous oil pipe; Under described continuous oil pipe, pipe arrangement lower end is connected with guide head, described guide head lower end outside has the inclined-plane matched with inclined-plane in snakelike guider targeting port, there is the guiding endoporus concentric with the large through-hole in described snakelike guider targeting port inside, enters in the large through-hole of described snakelike guider targeting port to enable high-pressure hose and shower nozzle.
Wherein, the hermetically-sealed construction that the expanding position of described sealing drum is installed comprises the connecting ring being arranged on centre, be provided with chevron to described connecting ring bilateral symmetry, described chevron outer end is disposed with support ring and pressure ring, the convex structure of described pressure ring and the groove fit of described support ring.
The invention has the beneficial effects as follows:
(1) part such as appearance flexible high-pressure hose etc. to be arranged under the coiled tubing of rigidity under in pipe arrangement and guide head and to enter producing well point of destination by the present invention, solves the introducing problem to snakelike guider in high-inclination directional well and horizontal well.
(2) the present invention utilizes and differently in lock tube expandingly coordinates the release and locking that realize high-pressure hose with steel ball, solves the problem cannot measuring the radial bore degree of depth in work progress.
(3) the present invention allows bellows and high-pressure hose to move freely downwards when radial jet is holed, and immediately can lock bellows, high-pressure hose cannot be moved up and down, thus accurately can measure the degree of depth of radial bore after jet drilling terminates.
(4) the present invention deals with the dark requirement of different brills by regulating the length of coiled tubing overcoat, liquid controling pipe line and bellows.
Accompanying drawing explanation
Fig. 1 is the structural representation of high-pressure hose introducing device provided by the present invention;
Fig. 2 is the structural representation of central tube;
Fig. 3 is the structural representation of piston;
Fig. 4 is the structural representation of overcoat;
Fig. 5 is the structural representation of lock tube;
Fig. 6 is the structural representation of spring;
Fig. 7 is the structural representation of pad;
Fig. 8 is the structural representation of connector;
Fig. 9 is the structural representation of sealing drum;
The part drawing of Figure 10 (a) chevron; The part drawing of (b) connecting ring; The part drawing of (c) support ring; The part drawing of (d) pressure ring;
Figure 11 is the structural representation of seal assembly;
Figure 12 is the structural representation of adapter sleeve;
Figure 13 is the structural representation of guide head;
Figure 14 is the view that the present invention goes into the well in process;
Figure 15 is the view of dispose procedure of the present invention;
Figure 16 is the view of locking process of the present invention;
Figure 17 is the view that the present invention bores dark measuring process.
In figure: 1-bellows; 2-central tube; The upper pressure transmission hole of 201-; Pressure transmission hole under 202-; 203-steel ball hole; 3-the one O type circle; 4-the 2nd O type circle; 5-the 3rd O type circle; 6-piston; Positioning step outside 601-; 7-the 4th O type circle; 8-lock tube;
801-lock tube inner face; Step in 802-lock tube; 9-steel ball; 10-pad; 11-spring; 12-overcoat;
Positioning step inside 1201-; 1202-balance pipe; 13-connector; The upper variable buckle joint of 14-; Pipe arrangement on 15-coiled tubing;
16-liquid controling pipe line; 17-sealing drum; 18-V shape packing; 19-connecting ring; 20-support ring; 21-pressure ring; 22-adapter sleeve;
Variable buckle joint under 23-; 24-high-pressure hose adapter sleeve; 25-high-pressure hose; Pipe arrangement under 26-coiled tubing; 27-shower nozzle;
28-guide head; 2801-leads endoporus; 29-oil pipe string; The snakelike guider targeting port of 30-.
Detailed description of the invention
For summary of the invention of the present invention, feature and effect can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
As shown in Figure 1, present embodiment discloses one in coiled tubing radial jet technique for guiding high-pressure hose to enter stratum smoothly, and the high-pressure hose introducing device of drilling depth can be measured, this device is made up of body part, lock part, release portion, hermetic unit, spout part and targeting part.
The effect of body part is each part of serial connection, and make each component form Unified Global, this part comprises central tube 2 and an O type circle 3.As shown in Figure 2, central tube 2 upper port is provided with for screw thread in being connected with coiled tubing.Central tube 2 upper outside is connected by common angular thread with overcoat 12 upper end, and is furnished with an O type circle 3 formation sealing.The external surface of central tube 2 is provided with sealing surface, for piston 6 inside sealing surface and the 3rd O type circle 5 form movable sealing.The middle part of central tube 2 is provided with two symmetrical upper pressure transmission holes 201 above its sealing surface, below its sealing surface, be provided with two symmetrical lower pressure transmission holes 202.Upper pressure transmission hole 201 and lower pressure transmission hole 202 can make the liquid in coiled tubing enter space above and below piston 5, make piston 6 be subject to upper liquid respectively and below liquid produces pressure.Central tube 2 is also provided with four equally distributed steel ball holes 203 in the below of lower pressure transmission hole 202, and this steel ball hole 203 embeds wherein for making steel ball 9, thus locates steel ball 9.
The effect of release portion is when carrying out jet drilling, bellows 1 can be released, and moves down together with high-pressure hose 25 and carry out jet drilling (movement simultaneously also have upper variable buckle joint 14, liquid controling pipe line 16, lower variable buckle joint 23, high-pressure hose adapter sleeve 24).Release portion comprises piston 6, the 2nd O type circle the 4, the 3rd O type circle the 5, the 4th O type circle 7 and overcoat 12.As shown in Figure 3, inside piston 6, be provided with O type ring recess, and the 3rd O type circle 5 is housed; Outer upper is provided with O type ring recess, and the 2nd O type circle 4 is housed, and bottom is provided with O type ring recess, and the 4th O type circle 7 is housed.The width of piston 6 upper surface is greater than the width of lower surface, the size of the 2nd O type circle 4 is greater than the size of the 4th O type circle 7 simultaneously, namely ensure that the external diameter formed after piston 6 installs the 2nd O type circle 4 is greater than the external diameter formed after piston 6 installs the 4th O type circle 7, thus make piston 6 top lifting surface area be greater than bottom lifting surface area, and then make piston 6 upper and lower end face be subject to respectively upper liquid and below liquid produce identical pressure time, can be subject to downward making a concerted effort, therefore piston 6 can be driven to lower movement.Piston 6 integral assembling is outside at central tube 2, the annular space between center seal pipe 2 and overcoat 12; Piston 6 top is by expanding the positioning of central tube 2 upper outside.Be provided with outside positioning step 601 in the middle part of piston 6, move down in process at piston 6, when outside positioning step 601 overlaps with the inner side positioning step 1201 of overcoat 12, piston 6 is mobile by stopping.As shown in Figure 4, overcoat 12 upper interior end mouth is connected with central tube 2 by common angular thread, and overcoat 12 bottom inner port is connected with connector 13 by common angular thread, and seals respectively by O type circle.Overcoat 12 middle and upper part corresponds to the position at piston 6 place and is provided with 2 symmetrical balance pipes 1202, and this balance pipe 1202 for making overcoat 12 internal and external pressure balance, thus ensures that piston 6 outside does not stress, and then can freely move up and down.
The effect of lock part be high-pressure injection tubing string under enter and trip out in process, bellows 1 and high-pressure hose 25 are locked by steel ball 9 and cannot move up and down, thus accurately can measure drilling depth, this part comprises lock tube 8, steel ball 9, pad 10, spring 11, connector 13 and has the bellows 1 of Wave crest and wave trough structure.Bellows 1 is penetrated by central tube 2 upper port, and through connector 13, variable buckle joint 14 on coiled tubing connects in pipe arrangement 15.Lock tube 8 is sleeved on the outside of central tube 2 and is positioned at below piston 6, is positioned by piston 6 simultaneously.As shown in Figure 5, lock tube 8 inside be provided with from the bottom to top less and larger two expanding; The monolateral difference of less expanding internal diameter and bellows 1 external diameter is less than the diameter of steel ball 9, thus this less expanding cooperation with steel ball 9 can lock bellows 1, thus high-pressure hose 25 cannot be moved up and down; The monolateral difference of internal diameter more expanding and bellows 1 external diameter is greater than the diameter of steel ball 9, thus this more expanding cooperation with steel ball 9 can discharge bellows 1, and high-pressure hose 25 can be moved up and down.It should be noted that the ultimate range (i.e. the maximum moving displacement of piston 5) between the outside positioning step 601 of piston 6 and the inner side positioning step 1201 of overcoat 12 needs to be greater than the distance of step 802 in lock tube inner face 801 and lock tube.Wherein, lock tube inner face 801 for lock tube 8 inner major diameter and less expanding between the step end face that formed, in lock tube step 802 for lock tube 8 less expanding and more expanding between the step surface that formed.Pad 10 and spring 11 are sleeved on central tube 2 lower outside successively, and top is carried out spacing, bottom by lock tube 8 bottom face and undertaken spacing by connector 13 top end face.For ensureing the reliability of lock part, spring 11 is in compressive state always, and the structure of spring 11 and pad 10 as shown in Figure 6 and Figure 7.Be connected with sealing drum 17 by pipe arrangement on coiled tubing 15 below connector 13, the structural representation of connector 13 as shown in Figure 8.
The effect of hermetic unit is opened the pressure in coiled tubing and the pressure packing outside coiled tubing, comprises sealing drum 17, chevron 18, connecting ring 19, support ring 20 and pressure ring 21.As shown in Figure 9, be provided with screw thread in being connected with pipe arrangement on coiled tubing 15 inside sealing drum 17 upper end, lower end inside is provided with the box thread be connected with adapter sleeve 22.Sealing drum 17 inside middle portion has smooth expanding, is provided with chevron 18, connecting ring 19, support ring 20 and pressure ring 21 in this expanding position.As shown in Figure 10 and Figure 11, chevron 18, connecting ring 19, support ring 20 and pressure ring 21 are combined and are formed movable sealing structure with liquid controling pipe line 16 in outside, and sealing is reliable.Wherein, chevron 18 plays main sealing function, and its V-shape itself also can produce certain elastic deformation; Connecting ring 19 both sides have the v-depression matched with chevron 18, play a supporting role to chevron 18 in centre; The convex structure of pressure ring 21 and the groove fit of support ring 20, be arranged on outside chevron 18 in the lump, carry out support and spacing from outside to chevron 18, support ring 20 is by the male-female with chevron 18 profile simultaneously, ensure chevron 18 dimensionally stable, good seal.
The effect of spout part is the mode radial direction well by high-pressure spray, and this part comprises variable buckle joint 14, liquid controling pipe line 16, lower variable buckle joint 23, high-pressure hose adapter sleeve 24, high-pressure hose 25 and shower nozzle 27.Liquid controling pipe line 16, high-pressure hose 25 and shower nozzle 27 all adopt parts conventional at present, do not belong to parts designed in the present invention.Upper variable buckle joint 14 the first half is the NPT pin thread be connected with bellows 1, and the latter half is the standard thread be connected with liquid controling pipe line 16.Lower variable buckle joint 23 is standard components, and the standard button-type of liquid controling pipe line 16 is become NPT button-type.High-pressure hose adapter sleeve 24 upper end has the internal thread that button-type is NPT button-type, for being connected with lower variable buckle joint 23; Lower end has internal thread, thus can be connected with high-pressure hose 25.
The effect of targeting part has two aspects, avoids high-pressure hose 25 and shower nozzle 27 to be exposed to guide head 28 outside when being on the one hand and going into the well, thus avoid high-pressure hose 25 under enter process and occur bending; Another effect enters smoothly in snakelike guider targeting port 30 when guiding high-pressure hose 25 after guide head 28 contacts with snakelike guider targeting port 30.This part comprises pipe arrangement 26 and guide head 28 under pipe arrangement 15 on coiled tubing, adapter sleeve 22, coiled tubing.As shown in figure 12, adapter sleeve 22 upper end is provided with the male thread be connected with sealing drum 17, and inside is provided with the expanding of oblique angle, and this is expanding for making lower variable buckle joint 23 from wherein passing through; There is the taper box thread be connected with pipe arrangement 26 under continuous oil pipe adapter sleeve 22 bottom.Under coiled tubing, pipe arrangement 26 and pipe arrangement 15 on coiled tubing belong to the coiled tubing pipe nipple of same model, and its length is equipped with according to the length of high-pressure hose 25.As shown in figure 13, guide head 28 upper end has the taper box thread be connected with pipe arrangement under coiled tubing 26, and lower end outside has the inclined-plane that gradient is 30 °, and there is guiding endoporus 2801 inside.
The upside of snakelike guider targeting port 30 inside is gradient is the interior inclined-plane of 30 °, and there is large through-hole inside.Snakelike guider targeting port 30 belongs to a part for snakelike guider, and snakelike guider belongs to more ripe product both at home and abroad, does not structurally belong to scope of design of the present invention.For being connected to the oil pipe string 29 of well head outside snakelike guider targeting port 30.Inclined-plane on the downside of guide head 28 coordinates with the interior inclined-plane of snakelike guider targeting port 30, ensures guiding endoporus 2801 and large through-hole with one heart, thus ensures that high-pressure hose 25 and shower nozzle 27 can enter large through-hole smoothly.
Of the present invention measurement bores dark high-pressure hose introducing device, and its course of work participated in is as follows:
(1) to go into the well process:
As shown in figure 14, when implementing coiled tubing radial bore technology in high angle hole and horizontal well, this technology generally needs down three times tubing strings, is for first time, by oil pipe string 29, anchor and snakelike guiding mechanism are lowered into position; For second time enter target zone position under connecting flexibility bar and drill bit by coiled tubing, and oil reservoir sleeve pipe is windowed, after having windowed, the tubing string entered is proposed well head, then connect the present invention as in the oil pipe string 29 in the 3rd time tubing string lower going-into-well with coiled tubing under second time.When guide head 28 of the present invention contacts with the snakelike guider targeting port 30 in one-trip string, continue to press down coiled tubing 25, make the guiding endoporus 2801 of guide head 28 of the present invention concentric with the large through-hole of snakelike guider targeting port 30.Under enter in process, due to the pretightning force effect of spring 11, less expanding the cooperation with steel ball 9 of lock tube 7 locks bellows 1, and therefore in the process of going into the well, bellows 1 and high-pressure hose 25 are in always and cannot move up and down state.
(2) dispose procedure:
As shown in figure 15, after entering target zone position under high-pressure injection tubing string, in coiled tubing, beat hydraulic pressure carry out jet drilling, hydraulic pressure is reached piston 6 by the upper pressure transmission hole 201 of central tube 2 and lower pressure transmission hole 202 by hydraulic pressure, above piston 6, pressure is greater than below pressure, thus promotion piston 6 and lock tube 8 move down, and continue Compress Spring 11.When the outside positioning step 601 of piston 6 overlaps with the inner side positioning step 1201 of overcoat 12, piston 6 is mobile by stopping, now the more expanding of lock tube 8 coordinates with steel ball 9, steel ball 9 is caused to lose constraint to bellows 1, final bellows 1, upper variable buckle joint 14, liquid controling pipe line 16, lower variable buckle joint 23, high-pressure hose adapter sleeve 24, high-pressure hose 25 moves down together with shower nozzle 27, shower nozzle 27 and partial high pressure flexible pipe 25 will pass the guiding endoporus 2801 of guide head 28 and the large through-hole of snakelike guider targeting port 30, and finally enter stratum and carry out jet hole operation.
(3) locking process:
As shown in figure 16, when the injection tubing string jet drilling of down-hole is to depth capacity, stopping is pumped into hydraulic pressure by ground in coiled tubing, now piston 6 and lock tube 8 are by pushed home under the effect of spring 11 restoring force, namely the less expanding of lock tube 8 coordinates with steel ball 9, locking bellows 1 and high-pressure hose 25.Then high-pressure injection tubing string will by carry to ground, above carry bellows 1 and high-pressure hose 25 in process and be in locked state all the time, cannot move up and down.
(4) dark measuring process is bored:
As shown in figure 17, after tripping out high-pressure injection tubing string, measure the length that high-pressure hose 25 stretches out in guide head 28, and subtracted each other by the rail length of this length and snakelike guider, the difference obtained is the actual drilling depth of radial jet.
Although be described the preferred embodiments of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make the concrete conversion of a lot of form, these all belong within protection scope of the present invention.
Claims (2)
1. for the high-pressure hose introducing device that the brill measured of radial jet technique is dark, it is characterized in that, this device is made up of body part, lock part, release portion, hermetic unit, spout part and targeting part;
Described body part comprises central tube (2), described central tube (2) upper port is used for being connected with coiled tubing, described central tube (2) upper outside is connected with overcoat (12) upper end and is furnished with an O type circle (3) and formed and seal, the external surface of described central tube (2) is provided with sealing surface, for forming movable sealing with the sealing surface and the 3rd O type circle (5) of piston (6) inner side, the middle part of described central tube (2) is provided with pressure transmission hole (201) above its sealing surface, lower pressure transmission hole (202) is provided with below its sealing surface, described central tube (2) is also provided with equally distributed steel ball hole (203) in the below of described lower pressure transmission hole (202), described steel ball hole (203) embeds wherein for making steel ball (9),
Described release portion comprises described piston (6) and described overcoat (12); Described piston (6) inner side is provided with the 3rd O type circle (5), and outer upper is provided with the 2nd O type circle (4), outer lower portion is provided with the 4th O type circle (7); The width of piston (6) upper surface is greater than the width of lower surface, simultaneously piston (6) is installed the 2nd O type circle (4) external diameter formed afterwards and is greater than piston (6) and installs the 4th O type circle (7) external diameter formed afterwards, can be subject to downward moving down with joint efforts after making piston (6) pressure transmission hole (201) and described lower pressure transmission hole (202) import liquid on described; Described piston (6) integral assembling is outside at described central tube (2), seals the annular space between described central tube (2) and described overcoat (12); Described piston (6) top is by expanding the positioning of described central tube (2) upper outside; Described piston (6) middle part be provided with outside positioning step (601), outside this positioning step (601) can described piston (6) move down process overlap with the inner side positioning step (1201) of described overcoat (12) and make described piston (6) stop movement; Described overcoat (12) upper interior end mouth is connected with described central tube (2) and seals, and bottom inner port is connected with connector (13) and seals; Described overcoat (12) middle and upper part corresponds to the balance pipe (1202) that the position at described piston (6) place is provided with the internal and external pressure balance making described overcoat (12);
Described lock part comprises lock tube (8), described steel ball (9), pad (10), spring (11), connector (13) and has the bellows (1) of Wave crest and wave trough structure; Described bellows (1) is penetrated by described central tube (2) upper port, and through described connector (13), coiled tubing connects upper variable buckle joint (14) in pipe arrangement (15); Described lock tube (8) is sleeved on described central tube (2) outside and is positioned at described piston (6) below, is positioned by described piston (6) simultaneously; Described lock tube (8) inside be provided with from the bottom to top less and larger two expanding, the monolateral difference of less expanding internal diameter and described bellows (1) external diameter is less than the diameter of described steel ball (9), bellows (1) and high-pressure hose (25) is locked to make this less expanding can cooperation with steel ball (9), the monolateral difference of internal diameter more expanding and described bellows (1) external diameter is greater than the diameter of described steel ball (9), discharges bellows (1) and high-pressure hose (25) to make this more expanding can cooperation with steel ball (9); Ultimate range between described outside positioning step (601) of described piston (6) and described inner side positioning step (1201) of described overcoat (12) is greater than the distance of step (802) in lock tube inner face (801) and lock tube; Described pad (10) and described spring (11) are sleeved on described central tube (2) lower outside successively, and its top is carried out spacing, bottom by described lock tube (8) bottom face and undertaken spacing by described connector (13) top end face; Described connector (13) below is connected with sealing drum (17) by pipe arrangement on coiled tubing (15);
Described hermetic unit comprises described sealing drum (17), is connected inside described sealing drum (17) upper end with pipe arrangement (15) on described coiled tubing, and lower end inside is connected with the adapter sleeve (22) of described targeting part; Described sealing drum (17) inside middle portion has smooth expanding, is provided with hermetically-sealed construction in this expanding position;
Described spout part comprises variable buckle joint (14), liquid controling pipe line (16), lower variable buckle joint (23), high-pressure hose adapter sleeve (24), high-pressure hose (25) and shower nozzle (27); Described bellows (1) is connected with described liquid controling pipe line (16) by described upper variable buckle joint (14), described liquid controling pipe line (16) connects described lower variable buckle joint (23), and described lower variable buckle joint (23) connects by described high-pressure hose adapter sleeve (24) the described high-pressure hose (25) that bottom is provided with described shower nozzle (27);
Described targeting part comprises pipe arrangement (26) and guide head (28) under pipe arrangement on coiled tubing (15), adapter sleeve (22), coiled tubing; On described coiled tubing, pipe arrangement (15) is for connecting described connector (13) and described sealing drum (17); Described adapter sleeve (22) upper end is connected with described sealing drum (17), and inside is provided with the expanding of oblique angle, and this is expanding for making described lower variable buckle joint (23) from wherein passing through; Described adapter sleeve (22) bottom is connected with pipe arrangement (26) under described continuous oil pipe; Under described continuous oil pipe, pipe arrangement (26) lower end is connected with guide head (28), described guide head (28) lower end outside has the inclined-plane matched with the interior inclined-plane of snakelike guider targeting port (30), there is the guiding endoporus (2801) concentric with the large through-hole in described snakelike guider targeting port (30) inside, can enter in the large through-hole of described snakelike guider targeting port (30) to make high-pressure hose (25) and shower nozzle (27).
2. a kind of high-pressure hose introducing device dark for the brill measured of radial jet technique according to claim 1, it is characterized in that, the hermetically-sealed construction that described sealing drum (17) expanding position is installed comprises the connecting ring (19) being arranged on centre, be provided with chevron (18) to described connecting ring (19) bilateral symmetry, described chevron (18) outer end is disposed with support ring (20) and pressure ring (21), the convex structure of described pressure ring (21) and the groove fit of described support ring (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410281052.0A CN104060942B (en) | 2014-06-20 | 2014-06-20 | A kind of high-pressure hose introducing device dark for the brill measured of radial jet technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| US9976351B2 (en) * | 2011-08-05 | 2018-05-22 | Coiled Tubing Specialties, Llc | Downhole hydraulic Jetting Assembly |
| CN104481403B (en) * | 2014-11-20 | 2016-08-17 | 中国石油天然气集团公司 | Downhole control system is crept in step-by-step movement injection |
| CN104989308B (en) * | 2015-07-10 | 2017-11-21 | 中国海洋石油总公司 | High angle hole radial jet windowing guide device and windowing bootstrap technique |
| CN106285633A (en) * | 2016-10-26 | 2017-01-04 | 贵州盘江精煤股份有限公司 | A kind of drilled via determinator and assay method thereof |
| CN108150150B (en) * | 2017-12-21 | 2024-04-16 | 中国电子科技集团公司第二十二研究所 | Logging instrument |
| CN114458155B (en) * | 2020-10-21 | 2024-07-19 | 中国石油化工股份有限公司 | Wellhead fixed radial drilling well completion method |
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| WO2010017139A2 (en) * | 2008-08-04 | 2010-02-11 | Radjet Llc | Apparatus and method for controlling the feed-in speed of a high pressure hose in jet drilling operations |
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