CN115559683B - Logging cable sealing suspension system - Google Patents
Logging cable sealing suspension system Download PDFInfo
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- CN115559683B CN115559683B CN202211568238.5A CN202211568238A CN115559683B CN 115559683 B CN115559683 B CN 115559683B CN 202211568238 A CN202211568238 A CN 202211568238A CN 115559683 B CN115559683 B CN 115559683B
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- 238000007789 sealing Methods 0.000 title claims abstract description 150
- 239000000725 suspension Substances 0.000 title claims abstract description 108
- 238000006073 displacement reaction Methods 0.000 claims abstract description 57
- 238000010008 shearing Methods 0.000 claims abstract description 26
- 238000001125 extrusion Methods 0.000 claims description 24
- 230000006835 compression Effects 0.000 claims description 23
- 238000007906 compression Methods 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 239000004519 grease Substances 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 230000009977 dual effect Effects 0.000 abstract description 6
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/0407—Casing heads; Suspending casings or tubings in well heads with a suspended electrical cable
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/04—Cutting of wire lines or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/068—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells
- E21B33/072—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells for cable-operated tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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Abstract
The invention relates to the technical field of petroleum machinery, in particular to a logging cable sealing suspension system. The embodiment of the invention provides a logging cable sealing suspension system, which comprises a displacement sensor, a pressure sensor, a display controller, a logging cable sealing suspension device and a shearing device, wherein the displacement sensor is arranged on the upper part of the logging cable; the pressure sensor is arranged in the high-pressure manifold, the logging cable sealing and hanging device seals one end of the high-pressure manifold and hangs the logging cable, the displacement sensor is arranged at one end, far away from the high-pressure manifold, of the logging cable sealing and hanging device, the displacement sensor is used for collecting displacement information of the logging cable, the pressure sensor is used for collecting pressure information in the high-pressure manifold, the display controller is used for collecting displacement information and pressure information and controlling the shearing device to shear the logging cable, and the shearing device is used for shearing the logging cable between the logging cable sealing and hanging device and the displacement sensor. The embodiment of the invention provides a logging cable sealing and hanging system, which can provide a system with dual functions of sealing and hanging.
Description
Technical Field
The invention relates to the technical field of petroleum machinery, in particular to a logging cable sealing suspension system.
Background
The logging cable comprises a logging cable, an optical fiber and a photoelectric composite cable and is mainly used for a continuous pipe logging technology. The logging cable is positioned in the continuous pipe, the tail end of the outermost layer of the roller of the continuous pipe is generally connected with an in-well logging device, the tail end of the inner layer of the continuous pipe is connected to a high-pressure manifold of the roller device through a T-shaped tee joint, and the logging cable in the continuous pipe is led out from the other end of the T-shaped tee joint and connected with a ground logging device. In order to prevent the logging cable from sliding out of the continuous pipe under the action of gravity in the operation process, a special high-pressure sealing device is required to be used for sealing the annular space at the leading-out position of the logging cable on the high-pressure manifold, and the whole logging cable is suspended.
In the related technology, the logging cable is mostly packaged by a stainless steel pipe or a steel wire armor, the strength of the logging cable packaged by the stainless steel pipe is low, the outer armor is easy to break along with the bending of a continuous pipe, and the reliability is low; the general outer winding multilayer steel wire of steel wire armoured logging cable is as the protection, and intensity and toughness are higher, long service life, and the reliability is higher, but this kind of logging cable is sealed comparatively difficult in logging cylinder high pressure manifold lead-out department, and will use special linkage again to bear whole logging cable whole weight in the well, lacks a device that has sealed and hang dual function at present.
Therefore, in view of the above disadvantages, there is a need for a sealing and suspending system for a logging cable, which can provide a system with dual functions of sealing and suspending.
Disclosure of Invention
The embodiment of the invention provides a logging cable sealing and hanging system, which can provide a system with dual functions of sealing and hanging.
The embodiment of the invention provides a logging cable sealing suspension system, which comprises a displacement sensor, a pressure sensor, a display controller, a logging cable sealing suspension device and a shearing device, wherein the pressure sensor is arranged on the casing; the pressure sensor is arranged in a high-pressure manifold, the logging cable sealing and hanging device seals one end of the high-pressure manifold and hangs a logging cable, the displacement sensor is arranged at one end, far away from the high-pressure manifold, of the logging cable sealing and hanging device, the displacement sensor is used for collecting displacement information of the logging cable, the pressure sensor is used for collecting pressure information in the high-pressure manifold, the display and control device is used for collecting the displacement information and the pressure information and controlling the shearing device to shear the logging cable, and the shearing device is used for shearing the logging cable between the logging cable sealing and hanging device and the displacement sensor; if the pressure information and/or the displacement information acquired by the display controller exceed a first preset pressure value and/or a first preset displacement value, the display controller gives an alarm, and if the pressure information and/or the displacement information acquired by the display controller exceed a second preset pressure value and/or a second preset displacement value, the display controller controls the shearing device to cut off the logging cable;
the logging cable sealing and hanging device comprises a first connecting body, a first hollow channel is formed in the first connecting body, and the right end of the first connecting body is connected with a continuous pipe;
the first hollow channel sequentially comprises a first hanging piece and a first sealing piece from right to left, a logging cable led out from the continuous pipe sequentially penetrates through the first hanging piece and the first sealing piece, the first hanging piece is used for fixedly hanging the logging cable penetrating into the first hollow channel, and the first sealing piece is used for sealing the logging cable penetrating through the first connecting body.
In one possible design, a second suspension member is disposed at a left end of the first connecting body, and the second suspension member is used for fixedly suspending the logging cable penetrating through the first connecting body.
In a possible design, the logging tool further comprises a second connecting body in sealing connection with the first connecting body, a second hollow channel is formed inside the second connecting body, the first hollow channel and the second hollow channel are communicated with each other, a second sealing member is arranged in the second hollow channel, the logging cable penetrating out of the first connecting body passes through the second sealing member, and the second sealing member is used for sealing the logging cable in the second connecting body.
In a possible design, the inner wall of the first connecting body protrudes towards the middle to form a first annular boss, a hanging bolt with a hollow structure is arranged on the right side of the first connecting body, the logging cable passes through the hanging bolt, and the hanging bolt is inserted into the first connecting body to fix the first hanging piece between the hanging bolt and the first boss.
In one possible design, inserting the second hanger into the first linkage from the left side secures the first seal between the second hanger and the first boss.
In one possible design, the logging cable is wrapped with a steel wire armor for sealing the logging cable, the steel wire armor sequentially comprises a first layer and a second layer from outside to inside, the second layer and the first layer are not wrapped by the sealed suspension end of the logging cable, and the first layer is not wrapped by one end, close to the sealed suspension end, of the second layer;
the first suspension part comprises a first suspension seat and a first pressing cap, the end of the first layer is turned outwards and reversely buckled outside the first suspension seat, and the first pressing cap is sleeved on the first suspension seat to fix the first layer reversely buckled outside the first suspension seat;
the left end of the second hanging part comprises a second hanging seat and a second pressing cap, the tail end of the second layer is turned outwards and reversely buckled outside the second hanging seat, and the second pressing cap is sleeved on the second hanging seat to fix the second layer reversely buckled outside the second hanging seat.
In one possible design, the first sealing element comprises a first extrusion ring and a first rubber core, a part of the second suspension element inserted into the first connecting body is provided with threads, the second suspension element is screwed to drive the first extrusion ring to extrude the first rubber core, and the first rubber core extrudes the inner wall of the first connecting body and the logging cable after being deformed by force so as to realize high-pressure sealing;
the inner wall of the second connector protrudes towards the middle to form an annular second boss, a compression bolt of a hollow structure is arranged on the left side of the second connector, the logging cable penetrates out of the compression bolt, the compression bolt is inserted into the second connector to fix the second sealing element between the compression bolt and the second boss, the second sealing element comprises a second extrusion ring and a second rubber core, the compression bolt is screwed to drive the second extrusion ring to extrude the second rubber core, and the second rubber core is extruded after being deformed by stress to extrude the inner wall of the second connector and the logging cable so as to realize high-pressure sealing.
In one possible embodiment, the first and second pressure rings are provided with a first and a second rubber sealing ring, respectively.
In a possible design, the first hollow channel includes two first sealing members, an annular spacer sleeve is disposed between the two first sealing members, an outer cylindrical surface of the spacer sleeve is provided with an annular groove, the groove is distributed with a plurality of radial holes in a circumferential direction, the groove corresponds to a grease injection port on the first connecting body, the grease injection port communicates the inside and the outside of the first connecting body, and a removable plug is disposed in the grease injection port.
In a possible design, the second connector is sleeved on the left side of the first connector through a set screw, and a third rubber sealing ring is arranged at the sleeved position of the first connector and the second connector.
Compared with the prior art, the invention at least has the following beneficial effects:
in the embodiment, the logging cable passes through the first hollow channel of the first connecting body and is fixed in the first connecting body by the first suspension piece, and the first suspension piece is used for suspending the logging cable to realize a suspension function; the logging cable passes through a first seal in the first connector, which keeps the logging cable sealed in the first connector. The first connecting piece is connected with the coiled tubing, and a logging cable led out from the coiled tubing passes through the first connecting piece, is suspended by the first suspension piece and is kept sealed by the first sealing piece, so that the dual functions of suspension and sealing are realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a sealed suspension device for a logging cable according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a use scenario of a sealed suspension device for a logging cable according to an embodiment of the present invention.
In the figure:
1-wing nut;
2-a first linker;
3-suspension bolts;
4-a first suspension member;
41-a first suspension mount;
42-a first press cap;
5-a first seal;
51-a first squeeze ring;
52-a first rubber core;
53-a first rubber sealing ring;
6-spacer sleeve;
7-a second suspension member;
71-a second suspension mount;
72-a second gland;
8-a second seal;
81-a second squeeze ring;
82-a second rubber core;
83-a second rubber sealing ring;
9-a second linker;
10-a hold-down bolt;
11-plug;
12-set screws;
13-a third rubber seal ring;
14-T type tee joint;
15-a continuous tube;
16-a wireline seal suspension;
17-a logging cable;
18-a logging drum;
19-high pressure manifold.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
In the description of the embodiments of the present invention, unless explicitly specified or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it should be understood that the terms "upper" and "lower" as used in the description of the embodiments of the present invention are used in the angle shown in the drawings, and should not be construed as limiting the embodiments of the present invention. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
As shown in fig. 1 and 2, an embodiment of the present invention provides a logging cable sealing suspension system, which includes a displacement sensor, a pressure sensor, a display controller, a logging cable sealing suspension device 16, and a shearing device;
the pressure sensor is arranged in the high-pressure manifold 19, the logging cable sealing and hanging device 16 seals one end of the high-pressure manifold 19 and hangs the logging cable 17, the displacement sensor is arranged at one end, far away from the high-pressure manifold 19, of the logging cable sealing and hanging device 16 and is used for collecting displacement information of the logging cable, the pressure sensor is used for collecting pressure information in the high-pressure manifold 19, the display and control device is used for collecting displacement information and pressure information and controlling the shearing device to shear the logging cable 17, and the shearing device is used for shearing the logging cable 17 between the logging cable sealing and hanging device 16 and the displacement sensor;
if the pressure information and/or the displacement information acquired by the display controller exceeds a first preset pressure value and/or a first preset displacement value, the display controller gives an alarm, and if the pressure information and/or the displacement information acquired by the display controller exceeds a second preset pressure value and/or a second preset displacement value, the display controller controls the shearing device to cut off the logging cable 17;
a logging cable sealing suspension device 16 comprises a first connecting body 2, wherein a first hollow channel is formed inside the first connecting body 2, and the right end of the first connecting body 2 is connected with a continuous pipe 15;
the first hollow channel sequentially comprises a first hanging piece 4 and a first sealing piece 5 from right to left, a logging cable 17 led out from the continuous pipe 15 sequentially passes through the first hanging piece 4 and the first sealing piece 5, the first hanging piece 4 is used for fixedly hanging the logging cable 17 penetrating into the first hollow channel, and the first sealing piece 5 is used for sealing the logging cable 17 penetrating through the first connecting body 2.
In the present embodiment, the logging cable 17 passes through the first hollow passage of the first connector 2, and is fixed in the first connector 2 by the first suspending member 4, and the first suspending member 4 is used for suspending the logging cable 17 to realize a suspending function; the logging line 17 passes through a first seal 5 in the first coupling body 2, the first seal 5 keeping the logging line 17 sealed in the first coupling body. The first connecting piece is connected with the continuous pipe 15, and a logging cable 17 led out of the continuous pipe 15 passes through the first connecting body 2, is suspended by the first suspension piece 4 and is kept sealed by the first sealing element 5, so that the dual functions of suspension and sealing are realized.
In this embodiment, the first hanger has an excellent hanging function, but the clamping force required by the first hanger to hang the logging cable becomes gradually larger as the logging cable goes deep into the mine. In this case, the first hanging member may gradually fail to maintain the function of hanging the logging cable, the logging cable 17 may gradually slip, a displacement sensor is disposed on the logging cable 17 extending out of one end of the logging cable sealing and hanging device 16 for acquiring the slip distance of the logging cable 17, preferably, the accuracy of the displacement sensor is 0.1mm, and when the displacement data acquired by the displacement sensor exceeds a first preset displacement value, the display controller gives an alarm, preferably, the first preset displacement value may be 1mm; when the displacement data collected by the displacement sensor exceeds a second preset displacement value, the display controller controls the shearing device to shear the logging cable 17, and preferably, the second preset displacement value can be 3mm. Similarly, since the downhole and the high-pressure fluid are not fixed, the pressure in the high-pressure manifold 19 is also not fixed, if the acquired pressure data in the high-pressure manifold 19 is higher than a first preset pressure value, the display controller gives an alarm, and if the acquired pressure data in the high-pressure manifold 19 is higher than a second preset pressure value, the display controller controls the shearing device to shear the logging cable 17.
No matter the logging cable takes place the displacement, or the pressure in the high-pressure manifold 19 is too big, all is the sign of logging cable 17 slippage out of control in the twinkling of an eye, because the logging cable 17 stretches out behind the sealed linkage 16 of logging cable and connects electric slip ring and ground logging device, if logging cable 17 thoroughly slips can damage electric slip ring and ground logging device, in order to prevent taking place above-mentioned circumstances, consequently, in time cut short logging cable loss stopping when logging cable 17 probably slips.
It should be noted that the displacement sensor, the pressure sensor, the shearing device and the display controller are in the prior art, and therefore, the structures are not marked in the drawings. The displacement sensor can be a linear displacement sensor, the displacement magnetic block is arranged on the logging cable, and the displacement of the logging cable is determined through the relative motion between the displacement magnetic block and the electronic ruler. The display controller can be a PLC control display. The shearing device may be a shearing robot arm. The pressure sensor may be a high pressure resistant pressure sensor.
Because displacement sensor is precision instrument, and the displacement magnetic path setting is on the logging cable, consequently, shearing mechanism sets up between logging cable sealing suspension device 16 and displacement sensor, so set up, after cutting logging cable 17, the displacement magnetic path can not lead to bumping against with logging cable sealing suspension device 16 along with the quick slippage of logging cable 17.
In this embodiment, a pressure sensor with a suitable maximum measurement range is selected, and the measurement range of the pressure sensor is larger than the maximum pressure-bearing value of the logging cable sealing suspension device 16. The pressure sensor can be arranged in the high-pressure manifold 19 in a sealing and penetrating mode, and can also be arranged inside the high-pressure manifold 19 to transmit pressure information in a wireless mode.
In the embodiment, the logging cable 17 is positioned in the coiled tubing 15, the coiled tubing 15 is connected with the downhole logging equipment at the outermost end of the roller, the inner end of the coiled tubing 15 is connected to the high-pressure manifold 19 of the roller device through the T-shaped tee 14, the logging cable 17 in the coiled tubing 15 is led out from the other end of the T-shaped tee 14 and is connected with the ground logging device through the logging cable sealing suspension device 16, and the logging cable sealing suspension device 16 is connected with the T-shaped tee 14 through the wing nut 1.
In some embodiments of the invention, the left end of the first connection body 2 is provided with a second suspension member 7, and the second suspension member 7 is used for fixedly suspending the logging cable 17 which passes through the first connection body 2.
In this embodiment, a second hanger 7 is provided on the left side of the first linkage body 2 to more securely hang the logging cable 17 in the first linkage body 2.
In some embodiments of the present invention, the present invention further comprises a second connection body 9 sealingly connected to the first connection body 2, the second connection body 9 forms a second hollow passage inside, the first hollow passage and the second hollow passage are communicated with each other, a second sealing member 8 is disposed in the second hollow passage, a logging cable 17 penetrating from the first connection body 2 passes through the second sealing member 8, and the second sealing member 8 is used for sealing the logging cable 17 in the second connection body 9.
In this embodiment, a second connection body 9 is connected to one side of the first connection body 2, a second hollow channel of the second connection body 9 is communicated with the first hollow channel of the first connection body 2, a second sealing member 8 is disposed in the second connection body 9, the logging cable 17 passing through the first connection body 2 passes through the second sealing member 8 in the second connection body 9 and then passes through the second connection body 9, and the second sealing member 8 further increases the sealing performance of the logging cable 17.
In some embodiments of the present invention, the inner wall of the first connecting body 2 protrudes towards the middle to form a ring-shaped first boss, the suspension bolt 3 with a hollow structure is arranged at the right side of the first connecting body 2, the logging cable 17 passes through the suspension bolt 3, and the suspension bolt 3 is inserted into the first connecting body 2 to fix the first suspension member 4 between the suspension bolt 3 and the first boss.
In this embodiment, the first suspending member 4 is fixed in the first coupling body 2 by the suspending bolt 3, so that the logging cable 17 fixed to the first suspending member 4 is more stable.
In some embodiments of the invention, the second suspension member 7 is inserted into the first linkage body 2 from the left side to fix the first sealer 5 between the second suspension member 7 and the first boss.
In this embodiment, the second hanger 7 is fixed to one end of the first coupling body 2, and the second hanger 7 inserted into the first coupling body 2 fixes the first sealing member 5 between the second hanger 7 and the first boss, preventing the second sealing member 8 from falling off from the first coupling body 2.
In some embodiments of the present invention, the logging cable 17 is wrapped with a steel wire armor for sealing the logging cable 17, the steel wire armor sequentially comprises a first layer and a second layer from outside to inside, the second layer and the first layer are not wrapped at the sealing suspension end of the logging cable 17, and the first layer is not wrapped at the end of the second layer close to the sealing suspension end;
the first hanging part 4 comprises a first hanging seat 41 and a first pressing cap 42, the end of the first layer is turned outwards and reversely buckled outside the first hanging seat 41, and the first pressing cap 42 is sleeved on the first hanging seat 41 to fix the first layer reversely buckled outside the first hanging seat 41;
the left end of the second hanger 7 comprises a second hanging seat 71 and a second pressing cap 72, the end of the second layer is turned outwards and reversely buckled outside the second hanging seat 71, and the second pressing cap 72 is sleeved on the second hanging seat 71 to fix the second layer reversely buckled outside the second hanging seat 71.
In this embodiment, the outer parcel of logging cable 17 has the multilayer steel wire armour, and the steel wire armour both protected logging cable 17, has guaranteed logging cable 17's leakproofness again, before penetrating logging cable 17 first connector 2 and second connector 9, the outmost of steel wire armour, first layer promptly need be tailor according to the length of first connector 2 and second connector 9. Then, the logging cable 17 led out from the continuous pipe 15 sequentially passes through the suspension bolt 3 and the first suspension member 4, the steel wires of the first layer are sequentially turned outwards according to the size of the first suspension seat 41, then are reversely buckled on the outer wall of the first suspension seat 41 one by one, and the first pressing cap 42 is sleeved on the first suspension seat 41 to fix the logging cable 17 on the first suspension member 4; the first hanger 4 and the suspension bolt 3 are inserted into the first coupling body 2 in this order, and the first hanger 4 is fastened to the first coupling body 2 by the first suspension bolt 3.
The logging cable 17 fixed on the first suspension member 4 passes through the first sealing member 5 and the second suspension member 7, the second suspension member 7 tightly fixes the first sealing member 5 in the first connecting body 2, a second layer of steel wire armor of the logging cable 17 passing through the second suspension member 7 is cut off according to the size of the second suspension member 7, the steel wires of the second layer are sequentially turned outwards and then reversely buckled on the outer wall of the second suspension seat 71 one by one, and a second pressing cap 72 is sleeved on the second suspension seat 71 to fix the logging cable 17 on the second suspension member 7.
In some embodiments of the present invention, the first sealing member 5 includes a first extrusion ring 51 and a first rubber plug 52, a portion of the second suspension member 7 inserted into the first connecting body 2 is provided with a thread, screwing the second suspension member 7 drives the first extrusion ring 51 to extrude the first rubber plug 52, and the first rubber plug 52 is deformed by a force to extrude an inner wall of the first connecting body 2 and the logging cable 17 to realize a high-pressure seal;
the inner wall of the second connecting body 9 protrudes towards the middle to form an annular second boss, a compression bolt 10 with a hollow structure is arranged on the left side of the second connecting body 9, the logging cable 17 penetrates out of the compression bolt 10, the compression bolt 10 is inserted into the second connecting body 9 to fix the second sealing element 8 between the compression bolt 10 and the second boss, the second sealing element 8 comprises a second extrusion ring 81 and a second rubber core 82, the compression bolt 10 is screwed to drive the second extrusion ring 81 to extrude the second rubber core 82, and the second rubber core 82 extrudes the inner wall of the second connecting body 9 and the logging cable 17 after being stressed and deformed to realize high-pressure sealing.
In this embodiment, the second suspension member 7 is connected to the first connection body 2 by a screw thread, the first seal 5 is extruded by screwing the second suspension member 7, the first seal 5 comprises a first extrusion ring 51 and a first rubber core 52, the first extrusion ring 51 extrudes the first rubber core 52 under the pushing of the second suspension member 7, and the first rubber core 52 extrudes the inner wall of the first connection body 2 and the logging cable 17 after being deformed by a force to realize high pressure sealing. The inner wall of the second connecting body 9 protrudes towards the middle to form an annular second boss, a compression bolt 10 with a hollow structure is arranged on the left side of the second connecting body 9, the logging cable 17 penetrates out of the compression bolt 10, the compression bolt 10 is inserted into the second connecting body 9 to fix the second sealing element 8 between the compression bolt 10 and the second boss, the second sealing element 8 comprises a second extrusion ring 81 and a second rubber core 82, the compression bolt 10 is screwed to drive the second extrusion ring 81 to extrude the second rubber core 82, and the second rubber core 82 extrudes the inner wall of the second connecting body 9 and the logging cable 17 after being stressed and deformed to realize high-pressure sealing. By pressing the first seal member 5 and the second seal member 8, the sealing effect and the pressure-bearing capacity of the first seal member 5 and the second seal member 8 are further increased.
In the invention, the first extrusion ring 51 is provided with a groove, and the first rubber core 52 is provided with a boss matched with the groove; the second extrusion ring 81 is provided with a groove, and the second rubber core 82 is provided with a boss matched with the groove. So set up, the gluey core in the middle of the extrusion is more easily warp to two directions from top to bottom to, there is not the space between extrusion ring and the gluey core, and the leakproofness is high.
In some embodiments of the present invention, the first and second pressing rings 51 and 81 are provided with first and second rubber seal rings 53 and 83, respectively.
In the present embodiment, the first pressing ring 51 and the second pressing ring 81 are respectively provided with a first rubber seal 53 and a second rubber seal 83, and the first rubber seal 53 and the second rubber seal 83 further increase the sealing performance inside the first connecting body 2.
In some embodiments of the present invention, the first hollow channel includes two first sealing members 5, an annular spacer sleeve 6 is disposed between the two first sealing members 5, an outer cylindrical surface of the spacer sleeve 6 has an annular groove, the groove has a plurality of radial holes distributed in a circumferential direction, the groove corresponds to a grease injection port on the first connecting body 2, the grease injection port communicates the inside and the outside of the first connecting body 2, and a removable plug 11 is disposed in the grease injection port.
In this embodiment, a plurality of first sealing members 5 are disposed on the first hollow channel, an annular spacer sleeve 6 may be disposed between the first sealing members 5, a plurality of radial holes are disposed in a circumferential groove of the spacer sleeve 6, at least one radial hole corresponds to the grease injection port on the first connecting body 2, and high-pressure sealing grease may be injected into the first connecting body 2 from the grease injection port, and then the first connecting body 2 is sealed by using the plug 11.
In some embodiments of the present invention, the second connecting body 9 is sleeved on the left side of the first connecting body 2 by a set screw 12, and a third rubber sealing ring 13 is arranged at the sleeved position of the first connecting body 2 and the second connecting body 9.
In this embodiment, the set screw 12 fixedly sleeves the second connecting body 9 on the first connecting body 2, a third rubber sealing ring 13 is disposed at the sleeve joint of the first connecting body 2 and the second connecting body 9, and the third rubber sealing ring 13 keeps the first connecting body 2 and the second connecting body 9 sealed.
The embodiment of the invention also provides an installation mode of the logging cable sealing and hanging device 16, which comprises the following specific installation modes:
firstly, a first sealing element 5 and a spacing sleeve 6 are sequentially arranged in advance in a first connecting body 2, a first suspension member 4 and a first suspension seat 41 are sequentially sleeved at the tail end of a logging cable 17 which penetrates out of a T-shaped tee joint 14, a first layer of armor of the logging cable 17 is stripped and neatly cut according to the integral installation size of a logging cable sealing and suspending device 16, outer layer steel wires at the cut part are sequentially turned outwards according to the suspension accommodating length of the first suspension seat 41 and are reversely buckled on the outer cylindrical surface of the first suspension seat 41 one by one, and then a first pressing cap 42 is arranged.
Secondly, the logging cable 17 stripped of the first layer of steel wire penetrates into the first connecting body 2 from the union end, penetrates out of the other end of the first connecting body 2 after sequentially penetrating through the first sealing element 5 and the spacer sleeve 6, integrally packs the buckled first hanging piece 4 into the right union end of the first connecting body 2, and compresses and fixes the first hanging piece 4 firmly by using the hanging bolt 3.
Thirdly, a second suspension seat 71 is arranged at the other end of the first connecting body 2, the logging cable 17 penetrates out of the center of the second suspension seat, and after a proper amount of high-pressure sealing grease is injected from a grease injection port at one side of the first connecting body 2, the grease injection port is sealed by a plug 11; the second suspension seat 71 is screwed, the first extrusion ring 51 is compressed, the two first rubber cores 52 are compressed, the logging cable 17 and the inner wall of the first connecting body 2 are extruded after the first rubber cores 52 are pressed and deformed, reliable sealing can be achieved, the first extrusion ring 51 and the inner hole of the first connecting body 2 are sealed through the first rubber sealing ring 53, and therefore first high-pressure sealing of the logging cable 17 is achieved.
And thirdly, stripping a second layer of steel wire armor from the penetrated logging cable 17, regularly shearing redundant parts according to the hanging length of the second hanging seat 71, sequentially turning the steel wires at the sheared parts outwards, reversely buckling the steel wires on the outer cylindrical surface of the second hanging seat 71 one by one, and installing a second pressing cap 72. And sequentially arranging the second sealing elements 8 into the second connecting body 9, and arranging two groups of third rubber sealing rings 13 matched with the second connecting body 9 on the first connecting body 2 into the groove of the first connecting body 2 in advance. And (3) sequentially penetrating the logging cable 17 stripped of two layers of steel wires into a second connecting body 9, a second sealing element 8 and a compression bolt 10, screwing the second connecting body 9 on the first connecting body 2, and locking by using a set screw 12. The compression bolt 10 is screwed, the second extrusion ring 81 compresses the second rubber core 82, the second rubber core 82 is pressed and deformed, then the inner walls of the logging cable 17 and the second connecting body 9 are extruded, reliable sealing can be achieved, sealing is achieved between the second extrusion ring 81 and the inner hole of the second connecting body 9 through the second rubber sealing ring 83, and therefore second high-pressure sealing of the logging cable 17 is achieved.
Finally, the logging cable sealing suspension device 16 is integrally installed on the T-shaped tee joint 14 of the high-pressure manifold 19 of the logging drum 18 through the first connector 2, and the tail end of the logging cable 17 is connected with the rotor end of the slip ring, so that the dynamic connection of signals of the logging cable 17 in the continuous pipe 15 and signals of an external logging device at the end of the logging drum 18 in the rotation process of the logging drum 18 can be realized.
For the logging cables 17 with different outer diameters, only the matched suspension bolt 3, the first suspension part 4, the first sealing part 5, the second suspension part 7, the second sealing part 8 and the compression bolt 10 need to be replaced, so that the adaptability is strong, the pressure-resistant grade is higher, and the working pressure can reach 105MPa or higher.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A logging cable sealing suspension system is characterized by comprising a displacement sensor, a pressure sensor, a display controller, a logging cable sealing suspension device (16) and a shearing device;
the pressure sensor is arranged in a high-pressure manifold (19), the logging cable sealing and hanging device (16) seals one end of the high-pressure manifold (19) and hangs a logging cable (17), the displacement sensor is arranged at one end, far away from the high-pressure manifold (19), of the logging cable sealing and hanging device (16), the displacement sensor is used for collecting displacement information of the logging cable, the pressure sensor is used for collecting pressure information in the high-pressure manifold (19), the display and control device is used for collecting the displacement information and the pressure information and controlling the shearing device to shear the logging cable (17), and the shearing device is used for shearing the logging cable (17) between the logging cable sealing and hanging device (16) and the displacement sensor;
if the pressure information and/or the displacement information acquired by the display controller exceed a first preset pressure value and/or a first preset displacement value, the display controller gives an alarm, and if the pressure information and/or the displacement information acquired by the display controller exceed a second preset pressure value and/or a second preset displacement value, the display controller controls the shearing device to cut off the logging cable (17);
the logging cable sealing and hanging device (16) comprises a first connecting body (2), a first hollow channel is formed inside the first connecting body (2), and the right end of the first connecting body (2) is connected with a continuous pipe (15);
the first hollow channel sequentially comprises a first hanging piece (4) and a first sealing piece (5) from right to left, a logging cable (17) led out from the continuous pipe (15) sequentially passes through the first hanging piece (4) and the first sealing piece (5), the first hanging piece (4) is used for fixedly hanging the logging cable (17) penetrating into the first hollow channel, and the first sealing piece (5) is used for sealing the logging cable (17) penetrating through the first connecting body (2);
a second hanging piece (7) is arranged at the left end of the first connecting body (2), and the second hanging piece (7) is used for fixedly hanging the logging cable (17) which penetrates out of the first connecting body (2);
the logging cable (17) is wrapped with a steel wire armor for sealing the logging cable (17), the steel wire armor sequentially comprises a first layer and a second layer from outside to inside, the second layer and the first layer are not wrapped at a sealing suspension end of the logging cable (17), and the first layer is not wrapped at one end, close to the sealing suspension end, of the second layer;
the first suspension element (4) comprises a first suspension seat (41) and a first pressing cap (42), the first layer is turned inside out and reversely buckled outside the first suspension seat (41), and the first pressing cap (42) is sleeved on the first suspension seat (41) to fix the first layer reversely buckled outside the first suspension seat (41);
the left end of the second hanger (7) comprises a second hanging seat (71) and a second pressing cap (72), the tail end of the second layer is turned outwards and reversely buckled outside the second hanging seat (71), and the second pressing cap (72) is sleeved on the second hanging seat (71) to fix the second layer reversely buckled outside the second hanging seat (71).
2. A logging cable sealing suspension system according to claim 1, further comprising a second connecting body (9) connected with the first connecting body (2) in a sealing manner, wherein the second connecting body (9) forms a second hollow channel inside, the first hollow channel and the second hollow channel are communicated with each other, a second sealing member (8) is arranged in the second hollow channel, the logging cable (17) penetrating from the first connecting body (2) passes through the second sealing member (8), and the second sealing member (8) is used for sealing the logging cable (17) in the second connecting body (9).
3. A logging cable sealing suspension system according to claim 2, wherein the inner wall of the first connecting body (2) protrudes towards the middle to form a ring-shaped first boss, the right side of the first connecting body (2) is provided with a suspension bolt (3) with a hollow structure, the logging cable (17) passes through the suspension bolt (3), and the suspension bolt (3) is inserted into the first connecting body (2) to fix the first suspension member (4) between the suspension bolt (3) and the first boss.
4. A logging cable sealing suspension system according to claim 3, wherein the second suspension member (7) is inserted into the first coupling body (2) from the left side to secure the first sealing member (5) between the second suspension member (7) and the first boss.
5. The system of claim 4, wherein the first sealing member (5) comprises a first extrusion ring (51) and a first rubber core (52), a portion of the second suspension member (7) inserted into the first connection body (2) is threaded, tightening the second suspension member (7) drives the first extrusion ring (51) to extrude the first rubber core (52), and the first rubber core (52) extrudes the inner wall of the first connection body (2) and the logging cable (17) after being deformed by a force to realize high-pressure sealing;
the inner wall of the second connecting body (9) protrudes towards the middle to form an annular second boss, a compression bolt (10) of a hollow structure is arranged on the left side of the second connecting body (9), the logging cable (17) penetrates out of the compression bolt (10), the compression bolt (10) is inserted into the second connecting body (9), the second sealing element (8) is fixed between the compression bolt (10) and the second boss, the second sealing element (8) comprises a second extrusion ring (81) and a second rubber core (82), the compression bolt (10) drives the second extrusion ring (81) to extrude the second rubber core (82), and the second rubber core (82) extrudes the inner wall of the second connecting body (9) and the logging cable (17) after being deformed by force so as to realize high-pressure sealing.
6. A wireline seal suspension system according to claim 5, wherein the first squeeze ring (51) and the second squeeze ring (81) are provided with a first rubber sealing ring (53) and a second rubber sealing ring (83), respectively.
7. A logging cable sealing and hanging system according to claim 6, wherein the first hollow channel comprises two first sealing elements (5), an annular spacer sleeve (6) is arranged between the two first sealing elements (5), an outer cylindrical surface of the spacer sleeve (6) is provided with an annular groove, the groove is provided with a plurality of radial holes distributed in the circumferential direction, the groove corresponds to a grease injection port on the first connecting body (2), the grease injection port is used for communicating the first connecting body (2) inside and outside, and a detachable plug (11) is arranged in the grease injection port.
8. A logging cable sealing and hanging system according to claim 7, wherein the second connecting body (9) is sleeved on the left side of the first connecting body (2) through a set screw (12), and a third rubber sealing ring (13) is arranged at the sleeved position of the first connecting body (2) and the second connecting body (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211568238.5A CN115559683B (en) | 2022-12-08 | 2022-12-08 | Logging cable sealing suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211568238.5A CN115559683B (en) | 2022-12-08 | 2022-12-08 | Logging cable sealing suspension system |
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| CN115559683A CN115559683A (en) | 2023-01-03 |
| CN115559683B true CN115559683B (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211568238.5A Active CN115559683B (en) | 2022-12-08 | 2022-12-08 | Logging cable sealing suspension system |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6530433B2 (en) * | 1999-12-08 | 2003-03-11 | Robbins & Myers Energy Systems, L.P. | Wellhead with ESP cable pack-off for low pressure applications |
| CN101588027A (en) * | 2009-07-09 | 2009-11-25 | 中国石油集团川庆钻探工程有限公司 | Hydraulic shearing device for petroleum logging perforation cable |
| CN103883308A (en) * | 2012-12-19 | 2014-06-25 | 西安石竹能源科技有限公司 | Anti-drop device for logging well control cable |
| CN203742499U (en) * | 2014-02-13 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Horizontal well drilling tool transmission logging cable hanger |
| CN108086952B (en) * | 2018-01-12 | 2024-06-14 | 科莱斯（天津）电热科技有限公司 | High-pressure wellhead T-cable hanging and releasing integrated device |
| CN111946277A (en) * | 2020-09-03 | 2020-11-17 | 牡丹江天擎科技有限公司 | A well control logging cable hanger and its tool assembly and use method |
| CN214124723U (en) * | 2020-12-09 | 2021-09-03 | 华信唐山石油装备有限公司 | Crossing type high-pressure sealing device |
| CN216176219U (en) * | 2021-11-03 | 2022-04-05 | 中石化石油工程技术服务有限公司 | Logging cable unloading cutting device |
| CN114059938B (en) * | 2021-12-09 | 2024-04-26 | 北京天擎丽都科技有限公司 | Underground cable shearing device with energy storage power |
| CN114837624B (en) * | 2022-05-12 | 2022-11-22 | 北京佰文恒新能源服务有限公司 | Electric submersible pump system without workover rig |
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