CN212743945U - Coiled tubing connects plugging device soon - Google Patents
Coiled tubing connects plugging device soon Download PDFInfo
- Publication number
- CN212743945U CN212743945U CN202022225388.9U CN202022225388U CN212743945U CN 212743945 U CN212743945 U CN 212743945U CN 202022225388 U CN202022225388 U CN 202022225388U CN 212743945 U CN212743945 U CN 212743945U
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- coiled tubing
- plugging device
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model belongs to oil gas field borehole operation instrument field, in particular to coiled tubing connects plugging device soon. A quick-connection plugging device for a continuous oil pipe comprises a connecting device, and a connector, a sealing rubber cylinder, a limiting cylinder and a central rod which are sequentially connected with the lower part of the connecting device; the middle part of the central rod is provided with a leather cup, and the lower end of the central rod is provided with a rubber tower; the connecting device comprises a connecting ring, a connecting column, a second connecting cylinder, a first connecting cylinder and an installing head which are sequentially connected from top to bottom, the installing head is fixedly connected with the connecting head, and the first connecting cylinder is connected with the second connecting cylinder through a buckle. The utility model discloses an adopt buckle connection, spliced pole and gluey tower to adopt to peg graft between the connecting cylinder among the connecting device, change original threaded connection mode, can realize the on-the-spot quick installation of plugging device cluster fast, easy operation, safe and reliable.
Description
Technical Field
The utility model belongs to oil gas field borehole operation instrument field, in particular to coiled tubing connects plugging device soon.
Background
In the process of exploiting natural gas by adopting a coiled tubing in a gas well, particularly in the middle and later periods of production of the gas well, as the pressure of a producing formation is reduced, the yield of the gas well is reduced, the coiled tubing in the gas well needs to be lifted out, the tubing can be lifted under pressure by using a coiled tubing plugging device, the coiled tubing plugging device is conveyed into the coiled tubing through a conveying rod, is set at any position in the coiled tubing and bears the unidirectional pressure of the lower part of the gas well.
The existing oil pipe plugging device is used, in order to realize effective plugging of a continuous oil pipe, a plurality of plugging devices are required to be sequentially put into the oil pipe to form a plugging device string, the plurality of plugging devices are required to be connected together before entering a well, the existing oil pipe plugging devices are installed by screw threads, the butt joint and the disassembly are inconvenient, the working time is greatly prolonged, the construction efficiency of workers is reduced, the number of use times is increased, the connecting threads are easy to damage, premature maintenance of the plugging devices is caused, and the cost is increased.
Disclosure of Invention
In order to the problem, the utility model aims at providing a coiled tubing connects plugging device soon adopts the connected mode of buckle connection, spliced pole and gluey tower adoption grafting between the connecting cylinder in the connecting device, changes original threaded connection mode, can realize the quick installation in scene of plugging device cluster fast.
The technical scheme of the utility model lies in:
a quick-connection plugging device for a continuous oil pipe comprises a connecting device, and a connector, a sealing rubber cylinder, a limiting cylinder and a central rod which are sequentially connected with the lower part of the connecting device; a rubber cylinder central rod is arranged in the sealing rubber cylinder, and the rubber cylinder central rod is inserted into the limiting cylinder; a connecting block is arranged in the lower end of the limiting cylinder, the lower end of the connecting block is inserted into the upper end of the central rod, a leather cup is arranged in the middle of the central rod, and a rubber tower is arranged at the lower end of the central rod; the connecting device comprises a connecting ring, a connecting column, a second connecting cylinder, a first connecting cylinder and an installing head which are sequentially connected from top to bottom, the installing head is fixedly connected with the connecting head, and the first connecting cylinder is connected with the second connecting cylinder through a buckle.
The connector upper portion outside is provided with the snap ring, the connector middle part is provided with the dog, the dog pass through fixing bolt with connector fixed connection.
The upper end of the first connecting cylinder is sequentially provided with a clamping block and threads, the lower end of the second connecting cylinder is provided with a clamping groove, and the clamping groove is matched with the clamping block.
The fixture blocks and the clamping grooves are arranged in two groups and are distributed in a centrosymmetric mode.
The outside that first connecting cylinder with second connecting cylinder buckle is connected is equipped with a fixed section of thick bamboo, a fixed section of thick bamboo with screw thread fixed connection.
The fixing barrel sequentially comprises a protective layer, a reinforcing layer, a copper-plated steel wire mesh and a barrel body from outside to inside, wherein the protective layer is fixed to the outside of the reinforcing layer in a laminating mode, the reinforcing layer is fixed to the outside of the copper-plated steel wire mesh in a laminating mode, the copper-plated steel wire mesh is fixed to the inside of the barrel body in a laminating mode, and the barrel body is in interference fit with threads.
The thickness of the protective layer is 2 times of that of the reinforcing layer, and the thickness of the protective layer is the same as that of the barrel.
The first connecting cylinder and the second connecting cylinder are the same in outer diameter and wall thickness.
The outside of the second connecting cylinder and the inside of the fixed cylinder are slidably mounted, and the length of the second connecting cylinder is the same as that of the first connecting cylinder.
The connecting column is communicated with the inside of the connecting ring, the communicated inner diameter is the same, and the communicated inner diameter is smaller than the outer diameter of the rubber tower.
The technical effects of the utility model reside in that: 1. the utility model adopts the connection mode of buckle connection between the connecting cylinders in the connecting device and splicing the connecting column with the rubber tower, changes the original threaded connection mode, can quickly realize the on-site quick installation of the plugging device string, and has simple operation, safety and reliability; 2. the utility model discloses an adopt the connected mode of buckle connection, spliced pole and gluey tower adoption grafting between the connecting cylinder among the connecting device, the connecting piece is not fragile, occluder long service life.
The following will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is the utility model relates to a coiled tubing connects plugging device structure sketch map soon.
Fig. 2 is the utility model relates to a stopper body structure sketch map of coiled tubing connects stopper soon.
Fig. 3 is a schematic structural view of the connection device of the coiled tubing quick-connection plugging device of the present invention when the connection device is connected.
Fig. 4 is a schematic structural diagram of the connecting device of the coiled tubing quick-connection plugging device of the present invention when the connecting device is not connected.
Fig. 5 is the utility model discloses a coiled tubing connects a stationary barrel schematic structure of plugging device soon.
Reference numerals: 1-connector, 2-snap ring, 3-stopper, 4-fixing bolt, 5-sealant cartridge, 6-center-rod of cartridge, 7-limit cartridge, 8-connecting block, 9-center-rod, 10-leather cup, 11-rubber tower, 12-connecting device, 121-mounting head, 122-first connecting cartridge, 123-thread, 124-fixture block, 125-clamping groove, 126-second connecting cartridge, 127-fixing cartridge, 128-connecting column, 129-connecting ring, 1271-protective layer, 1272-reinforcing layer, 1273-copper-plated steel wire mesh, 1274-barrel.
Detailed Description
Example 1
In order to overcome the installation of current oil pipe plugging device adoption screw thread more, the butt joint installation operation is complicated, inefficiency, the fragile problem of screw thread, the utility model provides a as shown in figure 1 a continuous oil pipe meets plugging device soon, the utility model discloses an adopt the buckle to connect between the connecting cylinder among the connecting device, the spliced pole adopts the connected mode of pegging graft with gluey tower, changes original threaded connection mode, can realize the on-the-spot quick installation of plugging device cluster fast, easy operation, safe and reliable.
As shown in fig. 1, 2 and 3, a coiled tubing quick connection plugging device comprises a connecting device 12, and a connector 1, a sealing rubber cylinder 5, a limiting cylinder 7 and a center rod 9 which are sequentially connected with the lower part of the connecting device 12; a rubber cylinder central rod 6 is arranged in the sealing rubber cylinder 5, and the rubber cylinder central rod 6 is inserted into the limiting cylinder 7; a connecting block 8 is arranged in the lower end of the limiting cylinder 7, the lower end of the connecting block 8 is inserted into the upper end of a central rod 9, a leather cup 10 is arranged in the middle of the central rod 9, and a rubber tower 11 is arranged at the lower end of the central rod 9; the connecting device 12 comprises a connecting ring 129, a connecting column 128, a second connecting cylinder 126, a first connecting cylinder 122 and a mounting head 121 which are connected in sequence from top to bottom, the mounting head 121 is fixedly connected with the connecting head 1, and the first connecting cylinder 122 and the second connecting cylinder 126 are connected in a snap-fit manner.
The utility model discloses a first connecting cylinder 122 with second connecting cylinder 126 adopts the buckle to connect and changes original threaded connection mode, can realize the quick installation in scene of plugging device cluster fast, easy operation, safe and reliable.
Example 2
Preferably, on the basis of embodiment 1, in this embodiment, the outer side of the upper portion of the connector 1 is provided with a snap ring 2, the middle portion of the connector 1 is provided with a stop dog 3, and the stop dog 3 is fixedly connected with the connector 1 through a fixing bolt 4. The mounting head 121 is made of plastic steel.
In practical use, the outer side of the upper part of the connector 1 is provided with a snap ring 2, after entering a well, the snap ring 2 is clamped on the inner wall of an oil pipe to realize the fixation of the plugging device, the stop block 3 is fixedly connected with the connector 1 through a fixing bolt 4 to realize the limitation of the position of the snap ring 2, the mounting head 121 is made of plastic steel, the plastic steel section is made of polyvinyl chloride (PVC) resin as a main raw material, so the plastic steel section is also called PVC section, and is added with a certain proportion of a stabilizer, a colorant, a filler, an ultraviolet absorbent and the like, and the extruded section is a novel building material which is widely applied, because the physical properties of the plastic steel section are excellent, such as rigidity, elasticity, corrosion resistance and ageing resistance, the plastic steel section is usually used as a good substitute of nonferrous metals such as copper, zinc, aluminum and the like, and is mainly used for push-pull, flat-open doors and windows, guardrails, it is light in weight, has good toughness and excellent rigidity, and is sometimes called alloy plastic steel.
Preferably, as shown in fig. 4, a latch 124 and a thread 123 are sequentially disposed at an upper end of the first connecting cylinder 122, and a latch 125 is disposed at a lower end of the second connecting cylinder 126, and the latch 125 is matched with the latch 124. The two groups of the clamping blocks 124 and the clamping grooves 125 are arranged and are distributed in a central symmetry manner.
In practical use, the second connecting cylinder 126 drives the clamping groove 125 to be inserted into the clamping block 124, so that the second connecting cylinder 126 is butted with the first connecting cylinder 122, and the operation is simple and convenient.
Preferably, as shown in fig. 5, a fixing cylinder 127 is disposed on an outer side of the snap connection between the first connecting cylinder 122 and the second connecting cylinder 126, and the fixing cylinder 127 is fixedly connected with the outer thread 123. The fixed cylinder 127 sequentially comprises a protective layer 1271, a reinforcing layer 1272, a copper-plated steel wire mesh 1273 and a cylinder body 1274 from outside to inside, wherein the protective layer is made of polyethylene, the reinforcing layer is made of alloy plastic steel, the inside of the protective layer 1271 is fixedly attached to the outside of the reinforcing layer 1272, the inside of the reinforcing layer 1272 is fixedly attached to the outside of the copper-plated steel wire mesh 1273, the inside of the copper-plated steel wire mesh 1273 is fixedly attached to the outside of the cylinder body 1274, and the inside of the cylinder body 1274 is in interference fit with the threads 123. The thickness of the protective layer 1271 is 2 times the thickness of the reinforcing layer 1272, and the thickness of the protective layer 1271 is the same as that of the cylinder 1274.
In practical use, the protective layer is made of polyethylene, the reinforcing layer is made of alloy plastic steel, the protection performance of the cylinder body 1274 can be improved, the fixed cylinder 127 slides outside the second connecting cylinder 126, and after the fixed cylinder 127 slides outside the second connecting cylinder, internal threads inside the fixed cylinder 127 are in interference fit with the external threads 123, so that the fixing effect is achieved. The protective layer 1271 has the outer protection function, the reinforcing layer 1272 and the copper-plated steel wire mesh 1273 are matched with each other and are arranged outside the cylinder body 1274, the hardness of the fixed cylinder 127 is improved, the compression resistance function is realized, and the connecting device 12 is effectively prevented from being bent when being connected, so that the butt joint is convenient, the working time is shortened, and the installation efficiency is improved.
Preferably, the first connecting cylinder 122 and the second connecting cylinder 126 have the same outer diameter and the same wall thickness. The second connecting cylinder 126 is slidably mounted on the outside of the fixed cylinder 127, and the length of the second connecting cylinder 126 is the same as that of the first connecting cylinder 122. The connecting column 128 is internally communicated with the connecting ring 129, and has the same through inner diameter which is smaller than the outer diameter of the rubber tower 11.
In practical use, the first connecting cylinder 122 and the second connecting cylinder 126 have the same outer diameter and the same wall thickness, the outside of the second connecting cylinder 126 is slidably mounted with the inside of the fixed cylinder 127, and the length of the second connecting cylinder 126 is the same as that of the first connecting cylinder 122, so that the first connecting cylinder 122 and the second connecting cylinder 126 are accurately connected; the connecting column 128 is internally communicated with the connecting ring 129, and has the same through inner diameter which is smaller than the outer diameter of the rubber tower 11. The plug-in connection of the connecting column 129 and the rubber tower 11 can be achieved, the original threaded connection mode is changed, the field quick installation of the plugging device string can be achieved quickly, and the plug-in connection device is easy to operate, safe and reliable.
A coiled tubing connects plugging device soon, and the specific use as follows:
s1: installing the coiled tubing quick-connection plugging device before entering a well;
when in use, the connecting device 12 of the coiled tubing quick-connection plugging device is detached from the first connecting cylinder (122) and the second connecting cylinder (126), the central rod 9 of the other coiled tubing quick-connection plugging device is inserted into the connecting ring 129 and the connecting column 128 of the detached connecting device 12, and the connecting column 128 is inserted into the inner surface of the connecting ring 129 through the rubber tower 11 at the lower end of the central rod 9; then, the second connecting cylinder 126 drives the clamping groove 125 to be inserted into the clamping block 124, so that the second connecting cylinder 126 is butted with the first connecting cylinder 122, the outer part of the joint is connected and fixed with the screw thread 123 by adopting the fixing cylinder 127, and therefore the installation of two coiled tubing quick connection plugging devices is realized, and the steps are continuously repeated in the installation of a plurality of coiled tubing quick connection plugging devices;
s2: the coiled tubing quick-connection plugging device enters a well for plugging;
after entering a well, the snap ring 2 is clamped on the inner wall of an oil pipe, the middle part of the connector 1 is provided with the stop block 3, the stop block 3 limits the position of the snap ring 2, the sealing rubber sleeve 5 seals the annular space of the oil pipe, and meanwhile, the leather cup 10 and the rubber tower 11 are mutually matched, so that the sealing performance of the device is improved;
s3: disassembling the coiled tubing quick-connection plugging device after the coiled tubing is discharged out of the well;
after the coiled tubing quick-connection plugging device is strung out of a well, the fixed cylinder 127 can be directly opened, and then the second connecting cylinder 126 is rotated to drive the clamping groove 125 to be separated from the clamping block 124, so that the quick-connection plugging device for adjacent coiled tubing can be disassembled.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (10)
1. The utility model provides a coiled tubing connects plugging device soon which characterized in that: comprises a connecting device (12), and a connector (1), a sealing rubber cylinder (5), a limiting cylinder (7) and a central rod (9) which are sequentially connected with the lower part of the connecting device (12); a rubber cylinder center rod (6) is arranged in the sealing rubber cylinder (5), and the rubber cylinder center rod (6) is inserted into the limiting cylinder (7); a connecting block (8) is arranged in the lower end of the limiting cylinder (7), the lower end of the connecting block (8) is inserted into the upper end of the central rod (9), a leather cup (10) is arranged in the middle of the central rod (9), and a rubber tower (11) is arranged at the lower end of the central rod (9); the connecting device (12) comprises a connecting ring (129), a connecting column (128), a second connecting cylinder (126), a first connecting cylinder (122) and a mounting head (121) which are sequentially connected from top to bottom, the mounting head (121) is fixedly connected with the connecting head (1), and the first connecting cylinder (122) is connected with the second connecting cylinder (126) in a buckling mode.
2. The coiled tubing quick-connect plugging device of claim 1, wherein: connector (1) upper portion outside is provided with snap ring (2), connector (1) middle part is provided with dog (3), dog (3) through fixing bolt (4) with connector (1) fixed connection.
3. The coiled tubing quick-connect plugging device of claim 1, wherein: the upper end of the first connecting cylinder (122) is sequentially provided with a clamping block (124) and a thread (123), the lower end of the second connecting cylinder (126) is provided with a clamping groove (125), and the clamping groove (125) is matched with the clamping block (124).
4. The coiled tubing quick-connect plugging device of claim 3, wherein: the clamping blocks (124) and the clamping grooves (125) are arranged in two groups and are distributed in a central symmetry manner.
5. The coiled tubing quick-connect plugging device of claim 3, wherein: the outside of first connecting cylinder (122) and second connecting cylinder (126) snap-fit connection is equipped with a fixed cylinder (127), fixed cylinder (127) with screw thread (123) fixed connection.
6. The coiled tubing quick-connect plugging device of claim 5, wherein: the fixed cylinder (127) comprises an protective layer (1271), an enhancement layer (1272), a copper-plated steel wire mesh (1273) and a cylinder body (1274) from outside to inside in sequence, the protective layer (1271) is fixed by being attached to the outside of the enhancement layer (1272), the enhancement layer (1272) is fixed by being attached to the outside of the copper-plated steel wire mesh (1273), the copper-plated steel wire mesh (1273) is fixed by being attached to the outside of the cylinder body (1274), and the cylinder body (1274) is in interference fit with the threads (123).
7. The coiled tubing quick-connect plugging device of claim 6, wherein: the thickness of the protective layer (1271) is 2 times the thickness of the reinforcing layer (1272), and the thickness of the protective layer (1271) is the same as the thickness of the barrel (1274).
8. The coiled tubing quick-connect plugging device of claim 1, wherein: the first connecting cylinder (122) and the second connecting cylinder (126) have the same outer diameter and the same wall thickness.
9. The coiled tubing quick-connect plugging device of claim 5, wherein: the outside of the second connecting cylinder (126) is slidably mounted with the inside of the fixed cylinder (127), and the length of the second connecting cylinder (126) is the same as that of the first connecting cylinder (122).
10. The coiled tubing quick-connect plugging device of claim 1, wherein: the connecting column (128) is communicated with the connecting ring (129) internally, and the inner diameter of the connecting column is the same as that of the connecting ring, and the inner diameter of the connecting column is smaller than the outer diameter of the rubber tower (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022225388.9U CN212743945U (en) | 2020-10-09 | 2020-10-09 | Coiled tubing connects plugging device soon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022225388.9U CN212743945U (en) | 2020-10-09 | 2020-10-09 | Coiled tubing connects plugging device soon |
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| Publication Number | Publication Date |
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| CN212743945U true CN212743945U (en) | 2021-03-19 |
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| CN202022225388.9U Active CN212743945U (en) | 2020-10-09 | 2020-10-09 | Coiled tubing connects plugging device soon |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049602A (en) * | 2020-10-09 | 2020-12-08 | 中国石油天然气集团有限公司 | Coiled tubing quick connection plugging device and use method |
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2020
- 2020-10-09 CN CN202022225388.9U patent/CN212743945U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049602A (en) * | 2020-10-09 | 2020-12-08 | 中国石油天然气集团有限公司 | Coiled tubing quick connection plugging device and use method |
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