CN112392409A - Cable laying pipe switch sliding sleeve mechanism and using method thereof - Google Patents
Cable laying pipe switch sliding sleeve mechanism and using method thereof Download PDFInfo
- Publication number
- CN112392409A CN112392409A CN202011273519.9A CN202011273519A CN112392409A CN 112392409 A CN112392409 A CN 112392409A CN 202011273519 A CN202011273519 A CN 202011273519A CN 112392409 A CN112392409 A CN 112392409A
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- sliding sleeve
- hole
- outer cylinder
- cylinder
- sleeve outer
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000003129 oil well Substances 0.000 claims description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 239000012188 paraffin wax Substances 0.000 claims description 5
- 239000003921 oil Substances 0.000 description 28
- 238000000605 extraction Methods 0.000 description 10
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
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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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Fuses (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention provides a cable laying pipe switch sliding sleeve mechanism and a using method thereof, wherein the cable laying pipe switch sliding sleeve mechanism comprises: the upper joint, the cross rod, the sliding sleeve inner cylinder and the fusible base; the lower part of the upper joint is connected with a sliding sleeve outer cylinder, a plurality of first through holes are formed in the side wall of the sliding sleeve outer cylinder, and a lower joint is connected in the lower port of the sliding sleeve outer cylinder; the cross rod is transversely fixed in the upper port of the sliding sleeve outer cylinder and is connected with a spring; the sliding sleeve inner cylinder is assembled inside the sliding sleeve outer cylinder in a sliding mode, the edge of an upper port of the sliding sleeve inner cylinder is connected with the spring, and a plurality of second through holes are formed in the side wall of the sliding sleeve inner cylinder; the fusible base is assembled between the inner sliding sleeve cylinder in the outer sliding sleeve cylinder and the upper port of the lower joint. The application method of the cable laying pipe switch sliding sleeve mechanism is implemented by adopting the cable laying pipe switch sliding sleeve mechanism.
Description
Technical Field
The invention belongs to the technical field of oil extraction in oil fields, and particularly relates to a cable laying pipe switch sliding sleeve mechanism and a using method thereof.
Background
At present, the continuous cable laying pipe is widely applied in the field of oil extraction in oil fields. However, before the continuous cable laying pipe goes down the well, the lower end of the continuous cable laying pipe needs to be connected with an oil extraction pump such as a screw pump, an electric submersible pump and the like in advance, if the middle of the continuous cable laying pipe is not provided with a liquid inlet pore passage after being connected with the pump, after the continuous cable laying pipe enters well liquid, the hollow structure of the continuous cable laying pipe is influenced by buoyancy, so that the downward entering resistance is increased, even the buoyancy of the upward top is larger than the bending strength of the continuous cable laying pipe, and the cable laying pipe is seriously bent and deformed in a shaft and cannot enter the well. In addition, when the pump is used for pulling out the pipe column, if liquid in the pipe column cannot be discharged in advance, the gravity and the operation difficulty of pulling out the pipe column are greatly increased, more seriously, the internal pressure of the liquid in the pipe column on the continuous cable laying pipe is pulled out along with the pipe column, the external pressure of the pipe is gradually reduced, the resultant force of the internal pressure and the external pressure applied to the pipe column is gradually increased, and when the stress of the pipe column is greater than the bearing limit of the continuous cable laying pipe, the cable laying pipe is cracked and scrapped.
Disclosure of Invention
In view of the above, it is an object of the present invention to provide a cable laying switch sliding sleeve mechanism and method of use thereof which overcomes, or at least partially solves or alleviates the above problems.
The invention provides a cable laying pipe switch sliding sleeve mechanism, which comprises:
the lower part of the upper joint is connected with a sliding sleeve outer cylinder, a plurality of first through holes are formed in the side wall of the sliding sleeve outer cylinder, and a lower joint is connected in the lower port of the sliding sleeve outer cylinder;
the cross rod is transversely fixed in an upper port of the sliding sleeve outer cylinder and is connected with a spring;
the sliding sleeve inner cylinder is assembled inside the sliding sleeve outer cylinder in a sliding mode, the edge of an upper port of the sliding sleeve inner cylinder is connected with the spring, and a plurality of second through holes are formed in the side wall of the sliding sleeve inner cylinder;
the base can be melted, the base assembly can be melted in the sliding sleeve urceolus sliding sleeve inner tube with between the last port of lower clutch.
The invention also has the following optional features.
Optionally, the softening temperature of the meltable base is the temperature of the oil stream below the liquid level in the well below which the meltable base is lowered.
Optionally, the meltable base is made of paraffin.
Optionally, the distance from the lowest point of the first through hole on the sliding sleeve outer cylinder to the upper edge of the lower joint is greater than the length of the sliding sleeve inner cylinder.
Optionally, the first through hole and the second through hole are both provided with a plurality of through holes, and are respectively and circumferentially and symmetrically distributed on the side wall of the sliding sleeve outer cylinder and the side wall of the sliding sleeve inner cylinder.
Optionally, peripheral surface spacing distances between adjacent holes of the first through hole and the second through hole are smaller than diameters of the first through hole and the second through hole.
Optionally, two pairs of limiting blocks are symmetrically arranged in the upper port of the sliding sleeve outer cylinder, and two ends of the cross rod are respectively fixed between each pair of limiting blocks.
The invention also provides a using method of the cable laying pipe switch sliding sleeve mechanism, which is implemented by adopting the cable laying pipe switch sliding sleeve mechanism and comprises the following steps:
firstly, determining the length of the fusible base, and ensuring that a second through hole on the sliding sleeve inner cylinder is aligned with a first through hole on the sliding sleeve outer cylinder after a lower joint is screwed in a lower port of the sliding sleeve outer cylinder;
then the pipe column is connected through the upper joint, the oil well pump is connected through the lower joint, and the sliding sleeve outer cylinder and the oil well pump are put into a well through the pipe column;
after the meltable base is melted, the spring pushes the inner barrel of the sliding sleeve downwards to move downwards, so that the first through hole and the second through hole are staggered in the vertical direction and are blocked, and the oil well pump can start to work;
when the oil well pump needs to be taken out, an iron ball is thrown into the pipe column, the lower cross rod and the sliding sleeve inner cylinder are impacted by the iron ball and fall to the upper port of the lower joint in the sliding sleeve outer cylinder, the sealing of the first through hole in the sliding sleeve outer cylinder is removed, and then the pipe column is lifted upwards.
The cable laying pipe switch sliding sleeve mechanism and the cable laying pipe switch sliding sleeve mechanism can ensure that the first through hole and the second through hole are opened to feed liquid in the process of laying the cable laying pipe down, and the first through hole and the second through hole are automatically closed after reaching the specified depth, so that the normal production of an oil extraction pump is ensured; when the pipe column needs to be discharged, the first through hole and the second through hole are opened again through ball throwing to discharge liquid in the cable laying pipe, so that the technical problem that the cable laying pipe is difficult to go into a well and is difficult to start is solved. The invention has the advantages of simple structure, low cost, convenient operation, safety and reliability, and has very high popularization and application prospect.
Drawings
Fig. 1 is a schematic overall full-section structure diagram of the cable laying pipe switch sliding sleeve mechanism of the invention.
In the above figures: 1, connecting a joint; 2, sliding sleeve outer cylinder; 3 a first through hole; 4, a lower joint; 5, a cross bar; 6, a spring; 7, sliding sleeve inner cylinder; 8 second through holes; 9 the base is fusible.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Detailed Description
Example 1
Referring to fig. 1, an embodiment of the present invention provides a cable laying pipe switch sliding sleeve mechanism, including: the upper joint 1, the cross rod 5, the sliding sleeve inner cylinder 7 and the fusible base 9; the lower part of the upper joint 1 is connected with a sliding sleeve outer cylinder 2, the side wall of the sliding sleeve outer cylinder 2 is provided with a plurality of first through holes 3, and the lower port of the sliding sleeve outer cylinder 2 is connected with a lower joint 4; the cross rod 5 is transversely fixed in the upper port of the sliding sleeve outer cylinder 2, and the cross rod 5 is connected with a spring 6; the sliding sleeve inner cylinder 7 is assembled inside the sliding sleeve outer cylinder 2 in a sliding mode, the edge of an upper port of the sliding sleeve inner cylinder 7 is connected with the spring 6, and a plurality of second through holes 8 are formed in the side wall of the sliding sleeve inner cylinder 7; the fusible base 9 is assembled between the sliding sleeve inner cylinder 7 and the upper port of the lower joint 4 in the sliding sleeve outer cylinder 2.
When the length-adjustable sliding sleeve outer barrel is used, the length of the fusible base 9 is determined, and after the lower joint 4 is screwed into the lower port of the sliding sleeve outer barrel 2, the second through hole 8 in the sliding sleeve inner barrel 7 is aligned with the first through hole 3 in the sliding sleeve outer barrel 2; then the upper joint 1 is connected with a pipe column, the lower joint 4 is connected with an oil well pump, a cable of the oil well pump passes through the sliding sleeve inner cylinder 7, the sliding sleeve outer cylinder 2 and the pipe column above the sliding sleeve inner cylinder and is discharged out of the well, when the sliding sleeve outer cylinder 2 and the oil well pump are pumped below the liquid level in the well through the pipe column, well oil flows into the pipe column through the first through hole 3 and the second through hole 8, so that the internal and external pressures and densities of the pipe column are balanced, and buoyancy cannot be;
after the oil well pump is lowered to a preset depth below the liquid level in the well, the meltable base 9 starts to melt and loses the support of the sliding sleeve inner cylinder 7, the spring 6 pushes the sliding sleeve inner cylinder 7 downwards to move, so that the first through hole 3 and the second through hole 8 are staggered in the vertical direction and are blocked, the oil well pump can start to work at the moment, and oil pumped by the oil well pump cannot leak;
when the oil-well pump needs to be overhauled, the oil-well pump needs to be taken out, at the moment, an iron ball is thrown into the pipe column, the iron ball impacts the lower cross rod 5 and the sliding sleeve inner cylinder 7 to fall to the upper port of the lower connector 4 in the sliding sleeve outer cylinder 2, the first through hole 3 in the sliding sleeve outer cylinder 2 is unblocked, oil in the pipe column leaks into the oil well from the first through hole 3, the internal and external pressure of the cable laying pipe is balanced, the weight of the pipe column is reduced, and the oil-well pump is conveniently lifted out of the oil well through the pipe column.
Example 2
Referring to fig. 1, on the basis of example 1, the softening temperature of the meltable base 9 is the temperature of the oil flow below the liquid level in the well below which the meltable base 9 is lowered.
The fusible base 9 is selected according to the temperature of the well oil flow converted from the depth of the coiled tubing string below the liquid level in the well. For example, the current oil well conversion temperature is 56 degrees, and the fusible base 9 with the number smaller than 56 is selected.
Example 3
Referring to fig. 1, on the basis of embodiment 2, the meltable base 9 is made of paraffin.
The meltable base 9 is made of paraffin, and after the paraffin is melted in oil flow, the crude oil is not polluted.
Example 4
Referring to fig. 1, on the basis of embodiment 1, the distance from the lowest point of the first through hole 3 on the sliding sleeve outer cylinder 2 to the upper edge of the lower joint 8 is greater than the length of the sliding sleeve inner cylinder 7.
When the cross rod 5 falls off, the sliding sleeve inner cylinder 7 slides downwards along with the spring 6 and the cross rod 5 to the upper edge of the lower joint 8, and the distance from the lowest point of the first through hole 3 on the sliding sleeve outer cylinder 2 to the upper edge of the lower joint 8 is greater than the length of the sliding sleeve inner cylinder 7, so that the first through hole 3 on the sliding sleeve outer cylinder 2 is completely opened, oil in the tubular column can leak out from the first through hole 3, the weight of the tubular column is reduced, and the tubular column and the oil extraction pump can be conveniently lifted out.
Example 5
Referring to fig. 1, on the basis of embodiment 4, the first through hole 3 and the second through hole 8 are both provided in plurality and are respectively circumferentially and symmetrically distributed on the side wall of the sliding sleeve outer cylinder 2 and the side wall of the sliding sleeve inner cylinder 7.
The side wall of the sliding sleeve outer barrel 2 is provided with a plurality of first through holes 3, the side wall of the sliding sleeve inner barrel 7 is provided with a plurality of second through holes 8, the conduction area of the first through holes 3 and the second through holes 8 can be increased, and the effect of quick liquid inlet or leakage of a tubular column is achieved.
Example 6
Referring to fig. 1, in example 5, the circumferential surface spacing distance between adjacent holes of the first through-hole 3 and the second through-hole 8 is smaller than the diameter thereof.
The circumferential surface spacing distance between adjacent holes of the first through hole 3 and the second through hole 8 is smaller than the diameter, and as long as the first through hole 3 and the second through hole 8 have the same height, even if an angle error exists between the sliding sleeve outer cylinder 2 and the sliding sleeve inner cylinder 7, the first through hole 3 and the second through hole 8 cannot be completely blocked.
Example 7
Referring to fig. 1, on the basis of embodiment 1, two pairs of limiting blocks are symmetrically arranged in the upper port of the sliding sleeve outer cylinder 2, and two ends of the cross rod 5 are respectively fixed between each pair of limiting blocks.
Every to the stopper weld respectively on the inside wall of sliding sleeve urceolus 2 to carry out spacing fixed to the tip of horizontal pole 5 from two upper and lower directions, when horizontal pole 5 suffered the iron ball and assaulted, two pairs of stoppers drop from the inside wall of sliding sleeve urceolus 2, and iron set 5 and sliding sleeve inner tube 7 also drop in sliding sleeve urceolus 2.
Example 8
On the basis of any one of the above embodiments, the embodiment of the invention provides a using method of a cable laying pipe switch sliding sleeve mechanism, which is implemented by adopting the cable laying pipe switch sliding sleeve mechanism of any one of the above embodiments, and comprises the following steps: firstly, determining the length of a fusible base 9, and ensuring that a second through hole 8 on a sliding sleeve inner cylinder 7 is aligned with a first through hole 3 on a sliding sleeve outer cylinder 2 after a lower joint 4 is screwed into a lower port of the sliding sleeve outer cylinder 2; then the pipe column is connected through the upper joint 1, the oil well pump is connected through the lower joint, and the sliding sleeve outer cylinder 2 and the oil well pump are put into a well through the pipe column; after the meltable base 9 is melted, the spring 6 pushes the sliding sleeve inner cylinder 7 downwards to move downwards, so that the first through hole 3 and the second through hole 8 are staggered in the vertical direction and are blocked, and the oil well pump can start to work at the moment; when the oil well pump needs to be taken out, an iron ball is put into the pipe column, the lower cross rod 5 and the sliding sleeve inner cylinder 7 are impacted by the iron ball and fall to the upper port of the lower connector 4 in the sliding sleeve outer cylinder 2, the first through hole 3 in the sliding sleeve outer cylinder 2 is unblocked, and then the pipe column is lifted.
Can melt base 9 and be the solid at ordinary temperature, structural strength has, can melt base 9 and support between lower clutch 4 and sliding sleeve inner tube 7, when making sliding sleeve inner tube 7 upwards compression spring 6, guarantee that second perforating hole 8 on the sliding sleeve inner tube 7 is aligned with first perforating hole 3 on the sliding sleeve urceolus 2, go into the in-process of the following degree of depth of tubular column and oil recovery pump to predetermined liquid level down, well oil liquid can be followed first perforating hole 3 and second perforating hole 8 and flowed into in the tubular column, internal and external pressure and density in the balanced cable laying pipe, avoid the tubular column to be flattened and produce buoyancy.
The oil temperature of the preset height part below the liquid level of the oil extraction pump is 65 ℃, the softening temperature of the base 9 can be melted by more than or equal to, the base 9 can be softened and melted at the moment, the support to the sliding sleeve inner cylinder 7 is lost, the sliding sleeve inner cylinder 7 moves downwards under the pressure action of the spring 6 until the first through hole 3 on the sliding sleeve outer cylinder 2 and the second through hole 8 on the sliding sleeve inner cylinder 7 are completely staggered and are blocked, the inside of the pipe column is isolated from the oil phase in the well at the moment, oil leakage is avoided, and the oil extraction pump can begin to pump oil.
When the oil extraction pump needs to be overhauled, the oil extraction pump and the tubular column can be lifted out of the oil well, oil is stored in the tubular column above the oil extraction pump, the weight of the tubular column can be increased, an iron ball is thrown into the tubular column, the iron ball falls down and impacts the cross rod 5, the cross rod 5 falls off from the sliding sleeve outer barrel 2, the spring 6 and the sliding sleeve inner barrel 7 connected with the cross rod fall to the upper edge of the lower joint 4, the first through hole 3 in the sliding sleeve outer barrel 2 is communicated with the inside of the oil well, when the tubular column is lifted up, the oil in the tubular column can be leaked out of the first through hole 3, the internal and external pressure of the cable laying pipe is balanced, the weight of the tubular column is reduced, and the tubular column and.
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 are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The components and structures of the present embodiments that are not described in detail are well known in the art and do not constitute essential structural elements or elements.
Claims (8)
1. A cable laying pipe switch sliding sleeve mechanism is characterized by comprising:
the lower part of the upper joint (1) is connected with a sliding sleeve outer cylinder (2), the side wall of the sliding sleeve outer cylinder (2) is provided with a plurality of first through holes (3), and a lower joint (4) is connected in the lower port of the sliding sleeve outer cylinder (2);
the cross rod (5) is transversely fixed in an upper port of the sliding sleeve outer cylinder (2), and a spring (6) is connected to the cross rod (5);
the sliding sleeve inner cylinder (7) is assembled inside the sliding sleeve outer cylinder (2) in a sliding mode, the edge of an upper port of the sliding sleeve inner cylinder (7) is connected with the spring (6), and a plurality of second through holes (8) are formed in the side wall of the sliding sleeve inner cylinder (7);
the base (9) can be melted, the base (9) can be melted and assembled in the sliding sleeve outer cylinder (2) between the sliding sleeve inner cylinder (7) and the upper port of the lower joint (4).
2. The cableway switch sleeve mechanism according to claim 1, wherein the softening temperature of the meltable base (9) is the temperature of the oil flow below the liquid level in the well below which the meltable base (9) is lowered.
3. A cableway switch sliding sleeve mechanism according to claim 2, characterized in that the meltable base (9) is made of paraffin.
4. A cableway switch sliding sleeve mechanism according to claim 1, characterized in that the lowest point of the first through hole (3) on the sliding sleeve outer barrel (2) is at a distance from the upper edge of the lower joint (8) which is greater than the length of the sliding sleeve inner barrel (7).
5. A cableway switch slider mechanism according to claim 4, characterized in that said first through hole (3) and said second through hole (8) are each provided in plurality and are circumferentially symmetrically distributed on the side wall of the outer slider cylinder (2) and on the side wall of the inner slider cylinder (7), respectively.
6. A cableway switch sliding sleeve mechanism according to claim 5, characterized in that the circumferential spacing between adjacent holes of the first through hole (3) and the second through hole (8) is less than the diameter thereof.
7. The cable laying pipe switch sliding sleeve mechanism according to claim 1, wherein two pairs of limiting blocks are symmetrically arranged in the upper port of the sliding sleeve outer cylinder (2), and two ends of the cross rod (5) are respectively fixed between each pair of limiting blocks.
8. A method of using a conduit switch sliding sleeve mechanism, implemented using the conduit switch sliding sleeve mechanism of claims 1 to 7, comprising the steps of:
firstly, determining the length of a fusible base (9), and ensuring that a second through hole (8) on a sliding sleeve inner cylinder (7) is aligned with a first through hole (3) on the sliding sleeve outer cylinder (2) after a lower joint (4) is screwed into a lower port of the sliding sleeve outer cylinder (2);
then the pipe column is connected through the upper joint (1), the oil well pump is connected through the lower joint, and the sliding sleeve outer cylinder (2) and the oil well pump are put into a well through the pipe column;
after the meltable base (9) is melted, the spring (6) pushes the sliding sleeve inner cylinder (7) downwards to move downwards, so that the first through hole (3) and the second through hole (8) are staggered in the vertical direction and are blocked, and the oil well pump can start to work at the moment;
when the oil well pump needs to be taken out, an iron ball is put into the pipe column, the lower cross rod (5) and the sliding sleeve inner cylinder (7) are impacted by the iron ball and fall to the upper end opening of the lower joint (4) in the sliding sleeve outer cylinder (2), at the moment, the first through hole (3) in the sliding sleeve outer cylinder (2) is unblocked, and then the pipe column is lifted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011273519.9A CN112392409B (en) | 2020-11-14 | 2020-11-14 | Cable laying pipe switch sliding sleeve mechanism and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011273519.9A CN112392409B (en) | 2020-11-14 | 2020-11-14 | Cable laying pipe switch sliding sleeve mechanism and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112392409A true CN112392409A (en) | 2021-02-23 |
| CN112392409B CN112392409B (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011273519.9A Active CN112392409B (en) | 2020-11-14 | 2020-11-14 | Cable laying pipe switch sliding sleeve mechanism and use method thereof |
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| Country | Link |
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| CN (1) | CN112392409B (en) |
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|---|---|---|---|---|
| CN202100235U (en) * | 2011-06-21 | 2012-01-04 | 大庆新力科技开发有限公司 | Special oil draining device communicated with pipe string oil sleeve under oil producing well of oilfield |
| CN102661129A (en) * | 2012-05-14 | 2012-09-12 | 陈爱民 | Method for controlling opening and closing of sliding sleeve by mechanically encoding |
| US20150114664A1 (en) * | 2013-10-25 | 2015-04-30 | Baker Hughes Incorporated | Multi-stage Fracturing with Smart Frack Sleeves While Leaving a Full Flow Bore |
| CN105298461A (en) * | 2015-11-03 | 2016-02-03 | 东北石油大学 | Full-bore infinite-time soluble-ball-type fracturing sliding sleeve |
| CN207080203U (en) * | 2017-07-26 | 2018-03-09 | 中国石油天然气股份有限公司 | The well-washing wax-cleaning completion tubular column of pumpingh well |
| CN109138955A (en) * | 2018-08-29 | 2019-01-04 | 中国石油集团渤海钻探工程有限公司 | A kind of solvable fracturing sliding bush of variable diameter spherically seated full-bore |
| CN110306959A (en) * | 2018-03-20 | 2019-10-08 | 中国石油天然气股份有限公司 | Fracturing sliding bush |
| US20200102807A1 (en) * | 2018-09-28 | 2020-04-02 | Shale Oil Tools, Llc | Downhole sleeve with dissolvable release |
| CN111088973A (en) * | 2020-01-10 | 2020-05-01 | 新疆恒智伟业石油工程技术开发有限公司 | Multifunctional fracturing well completion pipe string and process for high-temperature and high-pressure oil and gas well |
-
2020
- 2020-11-14 CN CN202011273519.9A patent/CN112392409B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202100235U (en) * | 2011-06-21 | 2012-01-04 | 大庆新力科技开发有限公司 | Special oil draining device communicated with pipe string oil sleeve under oil producing well of oilfield |
| CN102661129A (en) * | 2012-05-14 | 2012-09-12 | 陈爱民 | Method for controlling opening and closing of sliding sleeve by mechanically encoding |
| US20150114664A1 (en) * | 2013-10-25 | 2015-04-30 | Baker Hughes Incorporated | Multi-stage Fracturing with Smart Frack Sleeves While Leaving a Full Flow Bore |
| CN105298461A (en) * | 2015-11-03 | 2016-02-03 | 东北石油大学 | Full-bore infinite-time soluble-ball-type fracturing sliding sleeve |
| CN207080203U (en) * | 2017-07-26 | 2018-03-09 | 中国石油天然气股份有限公司 | The well-washing wax-cleaning completion tubular column of pumpingh well |
| CN110306959A (en) * | 2018-03-20 | 2019-10-08 | 中国石油天然气股份有限公司 | Fracturing sliding bush |
| CN109138955A (en) * | 2018-08-29 | 2019-01-04 | 中国石油集团渤海钻探工程有限公司 | A kind of solvable fracturing sliding bush of variable diameter spherically seated full-bore |
| US20200102807A1 (en) * | 2018-09-28 | 2020-04-02 | Shale Oil Tools, Llc | Downhole sleeve with dissolvable release |
| CN111088973A (en) * | 2020-01-10 | 2020-05-01 | 新疆恒智伟业石油工程技术开发有限公司 | Multifunctional fracturing well completion pipe string and process for high-temperature and high-pressure oil and gas well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112392409B (en) | 2023-06-30 |
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