CN115075775B - Soluble ring opener of circulation sliding sleeve - Google Patents
Soluble ring opener of circulation sliding sleeve Download PDFInfo
- Publication number
- CN115075775B CN115075775B CN202210833046.6A CN202210833046A CN115075775B CN 115075775 B CN115075775 B CN 115075775B CN 202210833046 A CN202210833046 A CN 202210833046A CN 115075775 B CN115075775 B CN 115075775B
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- Prior art keywords
- sliding sleeve
- oil drainage
- soluble
- draining
- ring
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- 230000007246 mechanism Effects 0.000 claims abstract description 67
- 210000000245 forearm Anatomy 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 8
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 4
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 8
- 239000003129 oil well Substances 0.000 description 10
- 230000008859 change Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000004090 dissolution Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
-
- 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
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
- E21B17/043—Threaded with locking means
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)
- Lubricants (AREA)
Abstract
The invention discloses a soluble ring opener of a circulating sliding sleeve, which comprises a central pipe, a mechanical cutting mechanism and an oil drainage mechanism, wherein the central pipe is sequentially provided with the mechanical cutting mechanism, the oil drainage mechanism and a limiting ring from top to bottom, the mechanical cutting mechanism is movably connected to the central pipe and movably connected with the oil drainage mechanism, the oil drainage mechanism is connected to the central pipe through a breakable pin, and when the breakable pin is broken and the oil drainage mechanism is abutted against the limiting ring, an oil drainage port on the oil drainage mechanism is communicated with an oil drainage hole on the central pipe. The soluble ring opener of the circulating sliding sleeve can automatically open an oil drainage channel through mechanical force without any additional operation and additional conditions, is simple to operate, and greatly shortens the operation time; the structure is compact, the occupied space of the oil sleeve annulus is small, so that enough flow-passing and testing channels are reserved in the oil sleeve annulus, the device is suitable for small-bore wells, existing casing deformation wells and burst casing deformation wells, and the adaptability and reliability are good.
Description
Technical Field
The invention relates to the technical field of oil drainage tools, in particular to a soluble ring opener of a circulating sliding sleeve.
Background
The expansion seat sealing mechanism of the existing oil drainage tool mostly adopts an elastic rubber or rigid anchor claw type, before oil drainage, a sucker rod needs to be thrown or lifted, an oil pipe column needs to be rotated, a pressurizing vehicle needs to be used for pressurizing, or a certain liquid level pressure is needed, the operation is complex, and the operation time is long; based on the reasons of structure and action principle, the outer diameter of the casing is much larger than that of a tubing coupling, so that the casing cannot be used in the existing casing deformation well; or the sleeve cannot be taken out when the sleeve is deformed after being put into the well, the application range is narrow, the reliable locking and retaining functions cannot be kept under the conditions of different sleeve inner diameters and sleeve deformation, and the unlocking phenomenon is easy to occur, so that the oil drainage function is lost. Due to the special disadvantages of weak strength and easy swelling of the elastic rubber type material, the elastic rubber type material has low deblocking bearing capacity and is easy to break, underground falling objects are caused, well blockage accidents are caused, and the oil well pump and the fixed valve are failed by serious people, so that the normal production of an oil well is influenced; and secondly, the smaller flow area influences the oil flow to reduce the productivity of the oil well. The existing oil drainage tool has a small overflowing area reserved in an oil sleeve annulus, and an oil drainage sliding mechanism is easy to block, so that the oil drainage tool cannot drain oil, the circulation of upper and lower oil is influenced, and the working fluid level of an oil well is difficult to recover; meanwhile, the lowering of a testing tool is hindered, and the normal testing operation of the oil well is hindered.
Disclosure of Invention
The invention aims to provide a soluble ring opener of a circulating sliding sleeve, which aims to solve the problems in the prior art and ensure that an oil drain device is simple to operate, short in operation time and high in reliability and adaptability.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a soluble ring opener of a circulating sliding sleeve, which comprises a central pipe, a mechanical cutting mechanism and an oil drainage mechanism, wherein the mechanical cutting mechanism, the oil drainage mechanism and a limiting ring are sequentially arranged on the central pipe from top to bottom, the mechanical cutting mechanism is movably connected to the central pipe and movably connected with the oil drainage mechanism, the oil drainage mechanism is connected to the central pipe through a breakable pin, and when the breakable pin is broken and the oil drainage mechanism is abutted to the limiting ring, an oil drainage port on the oil drainage mechanism is communicated with an oil drainage hole on the central pipe.
Preferably, the draining mechanism includes draining sliding sleeve and long arm sliding sleeve, can break the pin with be provided with a plurality of between the spacing ring the draining hole, the draining sliding sleeve distributes through a plurality of circumference the can break the pin with the center tube is connected and is covered the draining hole, the upper end annular of draining sliding sleeve with the lower extreme annular of long arm sliding sleeve splices into the draining passageway, be provided with on the draining passageway the draining mouth.
Preferably, but the pin of breaking is located on the draining passageway, the circumference equipartition has a plurality of on the lower extreme annular of long arm sliding sleeve draining port, be provided with spacing step on the center tube, the long arm sliding sleeve set up in the spacing step, the lower extreme annular with spacing step can the joint.
Preferably, a sealing ring is arranged between the oil drainage sliding sleeve and the oil drainage hole, and the sealing ring is positioned on two sides of the oil drainage hole.
Preferably, the oil drainage sliding sleeve and the contact surface of the long arm sliding sleeve and the central pipe are both provided with a negative ion anti-scaling coating.
Preferably, mechanical cutting mechanism includes long support arm, short support arm, fulcrum jump ring, soluble swivel nut and locking mechanism, the one end of long support arm articulate in the upper end of long arm sliding sleeve, the other end with short support arm is articulated, the fulcrum jump ring set up in just be located on the center tube the below of long support arm, the other end of short support arm with locking mechanism is articulated, soluble swivel nut threaded connection in just be located on the center tube short support arm with the junction of long support arm, the locking mechanism cover is located on the center tube and with the upper end of soluble swivel nut is inconsistent, long support arm with can block in the annular that external sleeve and coupling hoop formed after short support arm bounced.
Preferably, the central tube is provided with a retaining groove, the retaining groove is located above the soluble thread insert, and the locking mechanism can be clamped into the retaining groove and slide in the retaining groove.
Preferably, locking mechanism includes plug, stopping jump ring and forearm sliding sleeve, the plug with the forearm sliding sleeve is all overlapped and is established in on the center tube, the external screw thread of plug with the upper end of forearm sliding sleeve is connected, the lower extreme of plug with be provided with threely between the internal thread groove of forearm sliding sleeve the stopping jump ring, the forearm sliding sleeve with the forearm is articulated, the stopping jump ring can be blocked in the stopping inslot.
Preferably, four groups of hinged connecting rods of the long supporting arms and the short supporting arms are arranged along the circumferential direction of the central tube.
Preferably, the soluble thread insert is made of aluminum magnesium alloy.
Preferably, the upper end of the central tube is connected with a joint in a threaded manner.
Compared with the prior art, the invention achieves the following technical effects:
including center tube, mechanical shutdown mechanism and draining mechanism, the center tube has set gradually mechanical shutdown mechanism, draining mechanism and spacing ring from top to bottom, mechanical shutdown mechanism swing joint on the center tube and with draining mechanism swing joint, draining mechanism is connected on the center tube through a breakable pin, after breakable pin is cut off, when draining mechanism and spacing ring inconsistent, the draining mouth on the draining mechanism communicates with the draining hole on the center tube. The soluble ring opener of the circulating sliding sleeve can automatically open an oil drainage channel through mechanical force without any additional operation and additional conditions, is simple to operate, and greatly shortens the operation time; the structure is compact, the occupied space of the oil sleeve annulus is small, so that the oil sleeve annulus keeps enough overflowing and testing channels, the device is suitable for small-bore wells, existing casing change wells and burst casing change wells, the problems that the overflowing area of the existing oil drainer is too small, the working fluid level is difficult to recover and the testing operation cannot be carried out are solved, and the adaptability and the reliability are good; the oil pump can be used in the oil drilling industry, is arranged on the upper part of an oil well pump, and is used for automatically discharging oil in the oil well in the process of lifting a pipe column, so that the ground treatment capacity is reduced, the operation condition is improved, and the safety and environmental protection level of a well site is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a soluble ring opener of the circulating sliding sleeve;
FIG. 2 is a schematic view showing a first process of using the circulating sliding sleeve soluble ring opener of the present invention;
FIG. 3 is a schematic view showing a second process of using the circulating sliding sleeve soluble ring opener of the present invention;
FIG. 4 is a third schematic view showing the operation of the soluble ring opener with circulating sliding sleeve of the present invention;
FIG. 5 is a schematic view showing the operation process of the soluble ring opener with circulating sliding sleeve of the present invention;
wherein: 1-joint, 2-central tube, 3-plug, 4-short arm sliding sleeve, 5-backstop clamp spring, 6-short arm, 7-pin shaft, 8-soluble screw sleeve, 9-long arm, 10-fulcrum clamp spring, 11-long arm sliding sleeve, 12-breakable pin, 13-sealing ring, 14-oil drainage sliding sleeve, 15-spacing ring, 16-backstop groove, 17-spacing step, 18-oil drainage port, 19-oil drainage channel, 20-negative ion antiscale coating, 21-oil drainage hole, 22-sleeve and 23-connecting hoop.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide a soluble ring opener of a circulating sliding sleeve, which aims to solve the problems in the prior art and ensure that an oil drain device is simple to operate, short in operation time and high in reliability and adaptability.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 5: the embodiment provides a soluble ring opener of circulating sliding sleeve, including center tube 2, mechanical shutdown mechanism and draining mechanism, center tube 2 has set gradually mechanical shutdown mechanism from top to bottom, draining mechanism and spacing ring 15, mechanical shutdown mechanism swing joint on center tube 2 and with draining mechanism swing joint, draining mechanism connects on center tube 2 through a breakable pin 12, after breakable pin 12 cuts off, when draining mechanism and spacing ring 15 inconsistent, draining port 18 on the draining mechanism communicates with draining hole 21 on the center tube 2. Wherein, the upper end threaded connection of center tube 2 has joint 1, can be used to connect the upper end of oil-well pump.
The oil drainage mechanism comprises an oil drainage sliding sleeve 14 and a long arm sliding sleeve 11, a plurality of oil drainage holes 21 are formed between a breakable pin 12 and a limiting ring 15, the oil drainage sliding sleeve 14 is connected with a central pipe 2 through a breakable pin 12 distributed in the circumferential direction and covers the oil drainage holes 21, an oil drainage channel 19 is formed by splicing an upper end annular groove of the oil drainage sliding sleeve 14 and a lower end annular groove of the long arm sliding sleeve 11, and an oil drainage opening 18 is formed in the oil drainage channel 19. The breakable pin 12 is located the draining passageway 19, and the circumference equipartition has a plurality of draining mouth 18 on the lower extreme annular of long arm sliding sleeve 11, is provided with limiting step 17 on the center tube 2, and long arm sliding sleeve 11 sets up in limiting step 17, and lower extreme annular can the joint with limiting step 17. And a sealing ring 13 is arranged between the oil drainage sliding sleeve 14 and the oil drainage hole 21, and the sealing ring 13 is positioned at two sides of the oil drainage hole 21. All be provided with anion anti fouling coating 20 on the contact surface of draining sliding sleeve 14 and long arm sliding sleeve 11 and center tube 2, be convenient for the slip of draining sliding sleeve 14 and long arm sliding sleeve 11.
The mechanical cutting mechanism comprises a long support arm 9, a short support arm 6, a fulcrum snap spring 10, a soluble thread sleeve 8 and a locking mechanism, one end of the long support arm 9 is hinged to the upper end of a long support arm sliding sleeve 11, the other end of the long support arm is hinged to the short support arm 6 through a pin shaft 7, the fulcrum snap spring 10 is arranged on the central tube 2 and located below the long support arm 9, the other end of the short support arm 6 is hinged to the locking mechanism, the soluble thread sleeve 8 is in threaded connection with the central tube 2 and located at the connecting position of the short support arm 6 and the long support arm 9, the locking mechanism is sleeved on the central tube 2 and abutted to the upper end of the soluble thread sleeve 8, and the long support arm 9 and the short support arm 6 can be clamped into a ring groove formed by the external sleeve 22 and the connecting hoop 23 after bouncing up. Four groups of hinged connecting rods of the long supporting arms 9 and the short supporting arms 6 are arranged along the circumferential direction of the central tube 2, and a large enough space is reserved between each group, so that a test tool can be conveniently lifted up and down; the retaining snap spring 5 enables products to be clamped in a grading mode and is retained step by step, and the long support arm 9 and the short support arm 6 are guaranteed to have corresponding-grade supporting and expanding outer diameters. The central tube 2 is provided with a retaining groove 16, the retaining groove 16 is positioned above the soluble thread insert 8, and the locking mechanism can be clamped and slide in the retaining groove 16. The soluble thread insert 8 is made of aluminum magnesium alloy. Locking mechanism includes plug 3, stopping jump ring 5 and short arm sliding sleeve 4, plug 3 and short arm sliding sleeve 4 all overlap and establish on center tube 2, the external screw thread of plug 3 is connected with the upper end of short arm sliding sleeve 4, be provided with three stopping jump ring 5 between the lower extreme of plug 3 and the internal thread groove of short arm sliding sleeve 4, short arm sliding sleeve 4 is articulated with short supporting arm 6, stopping jump ring 5 can block into in the stopping groove 16, stopping jump ring 5 makes the product have the card of going into in grades, the stopping step by step, according to the characteristic that the grade rises, guarantee long supporting arm 9, short supporting arm 6 has the external diameter that props up of corresponding progression, the problem of current bleeder easy emergence back lock, unable draining is solved. The long arm 9, the short arm 6 of this embodiment are made by elastic steel material, combine fulcrum jump ring 10's the effect that rises, make this locking structure both have higher support intensity, have certain resilience characteristic again, guarantee to know anchor intensity and move back the card resilience, and the well is stuck not, and is not damaged, and it is low to have solved current bleeder deblocking bearing capacity, easily causes junk stuck well blocking accident, influences the problem of oil well productivity.
The working process and the principle of the circulating sliding sleeve soluble ring opener are as follows:
1. as shown in fig. 2, the product is installed on the upper part of the oil well pump, and when the pipe column is lowered to a designed position along with the pipe column during operation, the soluble thread insert 8 keeps the pushing state of the shaft sleeve of the short supporting arm 6, so that the long supporting arm 9 and the short supporting arm 6 are forced to be tightened; at the same time the soluble thread insert 8 starts to dissolve.
2. As shown in fig. 3, after a certain time, the soluble thread insert 8 is dissolved, the long support arm 9 automatically bounces under the supporting and expanding action of the support point snap spring 10, and drives the short support arm 6 to open, and the plug 3, the short arm sliding sleeve 4 and the backstop snap spring 5 are pulled together to move downwards, and finally the backstop snap spring 5 slides into the backstop slot 16; the short supporting arm 6 is supported on the inner wall of the sleeve 22 at the same time, so that the functions of timing dissolution (the dissolution time of the soluble thread sleeve 8 of the common aluminum-magnesium alloy is 3 days, the rapid dissolution time is 12 hours, and the dissolution time can be known by soaking the soluble thread sleeve in common water on the ground), automatic elastic expansion and random backstop stopping are realized.
3. As shown in fig. 4, when the pipe column is lifted up, the product moves upwards together with the pipe column, when the link mechanism formed by the combination of the long support arm 9 and the short support arm 6 moves upwards to the position of the connecting hoop 23, the link mechanism is clamped at the ring groove, and due to the retaining action formed by the clamp spring and the retaining groove 16, the link mechanism forms a downward component force under a pressed state, and forms a pushing trend for the long arm sliding sleeve 11.
4. As shown in fig. 5, when the lifting force increases, the downward pushing component force acts on the breakable pin 12 through the long-arm sliding sleeve 11 and the oil drainage sliding sleeve 14, exceeds the breakable strength of the pin, and is cut off; at the moment, the long-arm sliding sleeve 11 and the oil drainage sliding sleeve 14 are pushed and pressed downwards until an oil drainage hole 21 on the central tube 2, an oil drainage channel 19 and an oil drainage port 18 on the long-arm sliding sleeve 11 are communicated, oil in the oil tube is drained into an oil sleeve annulus through the oil drainage channel 19, and the product achieves an automatic oil drainage function; meanwhile, under the traction action of the long arm sliding sleeve 11, the long support arm 9 and the short support arm 6 are stretched and folded, the clamping state at the connecting hoop 23 is released, and products are continuously lifted out of the well along with the pipe column.
The soluble ring opener of the circulating sliding sleeve has a compact product structure, occupies small oil sleeve annular space, so that enough overflowing and testing channels are reserved in the oil sleeve annular space, and the problems that the overflowing area of the conventional oil drain is too small, the working fluid level is difficult to recover and the testing operation cannot be carried out are solved; after the oil drain is lowered into the well, the soluble thread insert 8 is automatically dissolved and expanded, automatically rebounds and contracts when lifted, and automatically opens oil drain, so that no additional operation or additional conditions are needed, the operation time is greatly shortened, and the problems of complex operation and long operation time of the conventional oil drain are solved. Because the short arm sliding sleeve 4 is four single arms, not an integrative device, can produce circular-arc after short support arm 6 stretches out simultaneously, lift and can not meet and hinder, can reduce the card and pause the condition and take place, even under many wax, many dirt, many grit oil ring environment, the mechanism also can not block, reliability and strong adaptability. Before the oil drain is put into the well, the outer diameter size of the soluble threaded sleeve 8 before dissolution is equal to the outer diameter of the connector 1, the oil drain is suitable for small-bore wells, existing casing change wells and burst casing change wells, the adaptability is good, and the problem that the existing oil drain cannot be used in the existing casing change wells and the burst casing change wells at present is solved.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. The utility model provides a soluble ring opener of circulation sliding sleeve which characterized in that: the oil drainage mechanism is connected to the central pipe through a breakable pin, and when the breakable pin is broken and the oil drainage mechanism is abutted to the limiting ring, an oil drainage port on the oil drainage mechanism is communicated with an oil drainage hole on the central pipe; the draining mechanism includes draining sliding sleeve and long arm sliding sleeve, can break the pin with be provided with a plurality of between the spacing ring the draining hole, the draining sliding sleeve distributes through a plurality of circumference can break the pin with the center tube is connected and is covered the draining hole, the upper end annular of draining sliding sleeve with the lower extreme annular of long arm sliding sleeve splices into the draining passageway, be provided with on the draining passageway the draining mouth, can break the pin and be located on the draining passageway, the circumference equipartition has a plurality of on the lower extreme annular of long arm sliding sleeve the draining mouth, be provided with spacing step on the center tube, the long arm sliding sleeve set up in the spacing step, the lower extreme annular with spacing step can the joint.
2. The circulating slide soluble ring opener according to claim 1, wherein: sealing rings are arranged between the oil drainage sliding sleeve and the oil drainage hole, and the sealing rings are positioned on two sides of the oil drainage hole; and the oil drainage sliding sleeve and the contact surface of the long arm sliding sleeve and the central pipe are both provided with a negative ion anti-scaling coating.
3. The opener of the soluble ring of the circulating sliding sleeve according to claim 1, characterized in that: mechanical cutting mechanism includes long support arm, short support arm, fulcrum jump ring, soluble swivel nut and locking mechanism, the one end of long support arm articulate in the upper end of long arm sliding sleeve, the other end with short support arm is articulated, the fulcrum jump ring set up in just be located on the center tube the below of long support arm, the other end of short support arm with locking mechanism is articulated, soluble swivel nut threaded connection in just be located on the center tube short support arm with the junction of long support arm, the locking mechanism cover is located on the center tube and with the upper end of soluble swivel nut is inconsistent, long support arm with can block into in the annular that external sleeve and coupling hoop formed after short support arm bounces.
4. The circulating slide soluble ring opener according to claim 3, wherein: the locking mechanism is characterized in that a stopping groove is formed in the central tube and located above the soluble thread sleeve, and the locking mechanism can be clamped into the stopping groove and slides in the stopping groove.
5. The circulating slide soluble ring opener according to claim 4, wherein: locking mechanism includes plug, stopping jump ring and forearm sliding sleeve, the plug with the equal cover of forearm sliding sleeve is established in on the center tube, the external screw thread of plug with the upper end of forearm sliding sleeve is connected, the lower extreme of plug with be provided with threely between the internal thread groove of forearm sliding sleeve the stopping jump ring, the forearm sliding sleeve with the forearm is articulated, the stopping jump ring can block into the stopping inslot.
6. The circulating slide soluble ring opener according to claim 3, wherein: four groups of hinged connecting rods of the long support arms and the short support arms are arranged along the circumferential direction of the central tube.
7. The circulating slide soluble ring opener according to claim 3, wherein: the soluble thread insert is made of aluminum magnesium alloy.
8. The circulating slide soluble ring opener according to claim 1, wherein: the upper end of the central pipe is connected with a joint in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210833046.6A CN115075775B (en) | 2022-07-14 | 2022-07-14 | Soluble ring opener of circulation sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210833046.6A CN115075775B (en) | 2022-07-14 | 2022-07-14 | Soluble ring opener of circulation sliding sleeve |
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| Publication Number | Publication Date |
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| CN115075775A CN115075775A (en) | 2022-09-20 |
| CN115075775B true CN115075775B (en) | 2023-03-17 |
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| CN202210833046.6A Active CN115075775B (en) | 2022-07-14 | 2022-07-14 | Soluble ring opener of circulation sliding sleeve |
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| CN (1) | CN115075775B (en) |
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| CN204457616U (en) * | 2015-01-06 | 2015-07-08 | 中国石油天然气股份有限公司 | The combined type drainage device of horizontal well and tubing string |
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| CN109854207A (en) * | 2019-03-27 | 2019-06-07 | 大庆吉庆雨科技开发有限公司 | It is a kind of to expand the automatic drainage device of formula certainly |
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| US9127527B2 (en) * | 2009-04-21 | 2015-09-08 | W. Lynn Frazier | Decomposable impediments for downhole tools and methods for using same |
| CA3022033A1 (en) * | 2010-10-18 | 2011-07-12 | Ncs Multistage Inc. | Tools and methods for use in completion of a wellbore |
| US9587464B2 (en) * | 2014-10-02 | 2017-03-07 | Sc Asset Corporation | Multi-stage liner with cluster valves and method of use |
| CN207892595U (en) * | 2017-11-20 | 2018-09-21 | 鄂静 | Anti-sticking oil bailing device step by step |
| US10995581B2 (en) * | 2018-07-26 | 2021-05-04 | Baker Hughes Oilfield Operations Llc | Self-cleaning packer system |
| CN211819327U (en) * | 2020-03-21 | 2020-10-30 | 菏泽市恒大石油机械配件厂 | Fracturing sliding sleeve for oil and gas well |
| CN212376634U (en) * | 2020-05-27 | 2021-01-19 | 大庆吉庆雨科技开发有限公司 | Self-expanding oil drain device |
| WO2021262005A1 (en) * | 2020-06-26 | 2021-12-30 | National Oilwell Varco Norway As | Valve and method for multi-stage well stimulation |
| CN111706297B (en) * | 2020-07-30 | 2021-03-26 | 大庆好乐知科技开发有限公司 | Self-expanding automatic oil drain device |
| CN212867503U (en) * | 2020-09-21 | 2021-04-02 | 赵威 | Oil drain valve |
| CN214741225U (en) * | 2021-04-29 | 2021-11-16 | 曹许明 | Spacing sliding sleeve formula oil pipe bleeder |
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2022
- 2022-07-14 CN CN202210833046.6A patent/CN115075775B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204457616U (en) * | 2015-01-06 | 2015-07-08 | 中国石油天然气股份有限公司 | The combined type drainage device of horizontal well and tubing string |
| CA2965571A1 (en) * | 2016-05-13 | 2017-11-13 | Advanced Completions Asset Corporation | Ball actuated hydraulic fracturing valve with degradable seat |
| CN109854207A (en) * | 2019-03-27 | 2019-06-07 | 大庆吉庆雨科技开发有限公司 | It is a kind of to expand the automatic drainage device of formula certainly |
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|---|---|
| CN115075775A (en) | 2022-09-20 |
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