CN102094596A - Locking device for downhole sliding sleeve of intelligent well and operation method thereof - Google Patents
Locking device for downhole sliding sleeve of intelligent well and operation method thereof Download PDFInfo
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- CN102094596A CN102094596A CN2010106142328A CN201010614232A CN102094596A CN 102094596 A CN102094596 A CN 102094596A CN 2010106142328 A CN2010106142328 A CN 2010106142328A CN 201010614232 A CN201010614232 A CN 201010614232A CN 102094596 A CN102094596 A CN 102094596A
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Abstract
The invention relates to a locking device for a downhole sliding sleeve of an intelligent well and an operation method thereof. The locking device is characterized by comprising a thickened oil pipe, wherein the periphery of the thickened oil pipe is sleeved with a locking hydraulic cylinder, and the locking hydraulic cylinder comprises a hydraulic cylinder cover and a cylinder sleeve that are connected through a bolt; the other end of the hydraulic cylinder cover is connected with a lower cover plate and an upper cover plate and positioned by a clamping ring arranged between the upper cover plate and the thickened oil pipe; a sliding sleeve is arranged between the locking hydraulic cylinder and the thickened oil pipe, a piston is arranged between the sliding sleeve and the cylinder sleeve, a piston annular space is kept between the piston and the sliding sleeve, and a returning spring is arranged between the piston and the cylinder sleeve; the hydraulic cylinder cover is provided with an oil inlet communicated in the cylinder sleeve, and the cylinder sleeve is provided with an oil outlet communicated with the outside; the contact part of the thickened oil pipe and the sliding sleeve is provided with a plurality of positioning grooves at intervals and a positioning steel ball; and the sliding sleeve is provided with a key slot, and the key slot is oppositely provided with a feather key. In the invention, the sliding sleeve can be locked through regulation under driving of hydraulic power so as to adjust the size of a downhole production runner. Therefore, the locking device is widely applied in a production control process of an oil and gas well.
Description
Technical field
The present invention relates to a kind of oil gas and bore completion and oil-gas mining device, particularly about a kind of smart well down-hole sliding sleeve locking device and method of operating thereof of being applied to.
Background technology
Smart well is a kind of downhole sensor that passes through, gather manufacturing parameters such as downhole temperature, pressure in real time, produce the chain data information through being transmitted in Ground analysis downhole production state, oil reservoir state and full well, and oil reservoir is carried out the completion system of production management and raising oil well recovery ratio according to the oil well production situation.Downhole production control mainly is by the ground hydraulic systems, and fluid power drives the down-hole sliding sleeve, adjusts the open degree of sliding sleeve, regulates the size of downhole production runner, realizes the manufacture control of oil gas well.The down-hole sliding sleeve mainly contains switch control and Multistage Control.Switch control is mainly used in the circuit-breaker oil gas-bearing formation, is not easy downhole production is regulated control, more is that downhole oil gas-bearing formation runner area of passage is realized Multistage Control.In the manufacturing process, may adjust the runner area of passage repeatedly, repeatedly according to oil-gas Layer situation down-hole sliding sleeve.Adopt ground can realize the control of down-hole sliding sleeve open degree, when sliding sleeve reaches appointed positions, need keep the position of sliding sleeve, to satisfy the requirement of production technology.Usually adopt the method for hydraulic lock, promptly close the hydraulic control system pressurize, make sliding sleeve be stabilized in appointed positions, this method requires system to be with pressure always, and hydraulic system can not be leaked simultaneously, and reliability is difficult to guarantee.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide a kind ofly when sliding sleeve reaches assigned address, system need not to keep the smart well down-hole sliding sleeve locking device and the method for operating thereof of hydraulic system pressure.
For achieving the above object, the present invention takes following technical scheme: a kind of smart well down-hole sliding sleeve locking device, it is characterized in that: it comprises heavy wall tubing, and the outer locking fluid cylinder that circumferentially is arranged with of described heavy wall tubing, described locking fluid cylinder comprise fluid cylinder lid and the cylinder sleeve that fuses by bolt; The other end of described fluid cylinder lid connects lower cover and upper cover plate, and the snap ring location by being provided with between described upper cover plate and the described heavy wall tubing; Be equipped with a sliding sleeve between described locking fluid cylinder and the described heavy wall tubing, be provided with a piston between described sliding sleeve and the described cylinder sleeve, be installed with the piston annular space between described piston and the described sliding sleeve, be provided with back-moving spring between described piston and the described cylinder sleeve; Described fluid cylinder covers and is provided with an oil-in that is communicated with in the described cylinder sleeve, and described cylinder sleeve is provided with one and is communicated with outside oil-out; The contact position of described heavy wall tubing and described sliding sleeve is arranged at intervals with some locating slots and a location steel ball; Described sliding sleeve is provided with a keyway mouth, and correspondence is provided with a feather key in the described keyway mouth.
Described locating slot is four.
The method of operating of a kind of above-mentioned smart well down-hole sliding sleeve locking device, it may further comprise the steps: during the oil-gas Layer ordinary production, piston is in the dead point, left side near fluid cylinder lid end under the effect of back-moving spring, be subjected to the radially restriction of piston, locking ball is in heavy wall tubing wherein in the locating slot, and sliding sleeve is locked on the heavy wall tubing; When needs are adjusted the position of sliding sleeve, from oil-in oil-feed in cylinder sleeve, promote the piston compression reseting spring and move to right dead point, locking ball falls into and stays between piston and the sliding sleeve in the piston annular space of establishing simultaneously, this moment, sliding sleeve was in released state, axially adjusted the sliding sleeve position; After the adjustment of sliding sleeve position finishes, the cylinder sleeve pressure release, piston is got back to original position under the effect of back-moving spring power, and locking ball radially is pressed in the locating slot of setting, and sliding sleeve is locked at setting.
The present invention is owing to take above technical scheme, it has the following advantages: 1, the present invention is owing to be fixed on fluid cylinder lid and cylinder sleeve on the heavy wall tubing by upper cover plate, lower cover, snap ring and bolt, locate and need not on heavy wall tubing, to weld, therefore, both can realize locking axially and circumferentially locating of fluid cylinder, again can be for convenience detach.2, the present invention is provided with piston in the locking fluid cylinder, be provided with locating slot and locking ball in the contact position of sliding sleeve and heavy wall tubing, therefore, can be by the interaction of piston and locking ball, realize the mechanical interlocking of sliding sleeve, when sliding sleeve reached assigned address, the pressure release of locking fluid cylinder was carried out locking positioning by locking ball to sliding sleeve.3, the present invention can prevent that by feather key sliding sleeve from circumferentially rotating because sliding sleeve is provided with feather key, so that locking ball is pressed in the locating slot locking sliding sleeve.Apparatus of the present invention are simple to operation, can adjust the locking sliding sleeve under fluid power drives, so that regulate the size of downhole production runner, therefore, can be widely used in the manufacture control process of oil gas well.
Description of drawings
Fig. 1 is apparatus of the present invention first locking position schematic diagrames
Fig. 2 is that apparatus of the present invention are separated the lock-bit schematic diagram
Fig. 3 is apparatus of the present invention second locking position schematic diagrames
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in detail.
As shown in Figure 1, the present invention includes a heavy wall tubing 1, the outer locking fluid cylinder that circumferentially is arranged with of heavy wall tubing 1, the locking fluid cylinder comprises fluid cylinder lid 3 and the cylinder sleeve 4 that links into an integrated entity by bolt 2.The other end of fluid cylinder lid 3 is located at lower cover 6 on the heavy wall tubing 1 by bolt 5 adapter sleeves, lower cover 6 is located at upper cover plate 8 on the heavy wall tubing 1 by bolt 7 adapter sleeves, be provided with snap ring 9 between upper cover plate 8 and the heavy wall tubing 1, it is circumferentially realized by snap ring 9 and 1 circumferential imperfect circle of heavy wall tubing the location.Between locking fluid cylinder and heavy wall tubing 1, be equipped with a sliding sleeve 10, be arranged with a piston 11 between sliding sleeve 10 and the cylinder sleeve 4, be installed with piston annular space 12 between piston 11 and the sliding sleeve 10.Be provided with back-moving spring 13 between piston 11 and the cylinder sleeve 4.Fluid cylinder lid 3 is provided with an oil-in 14 that is communicated with in the cylinder sleeve 4, and cylinder sleeve 4 is provided with one and is communicated with outside oil-out 15.Heavy wall tubing 1 is arranged at intervals with some locating slots 16 with the contact position of sliding sleeve 10, is used for placement positioning steel ball 17 in the locating slot 16.Sliding sleeve 10 is provided with a keyway mouth 18, correspondence is provided with a feather key 19 in keyway mouth 18, and moving axially of 19 pairs of sliding sleeves 10 of feather key has guide effect, can prevent that sliding sleeve 10 from circumferentially rotating, so that locking ball 17 is pressed in the locating slot 16 locking sliding sleeve 10.
Apparatus of the present invention are as follows to the adjustment locking method of sliding sleeve.
As shown in Figure 1, during the oil-gas Layer ordinary production, piston 11 covers 3 ends near fluid cylinder and is in the dead point, left side under the effect of back-moving spring 13, be subjected to the radially restriction of piston 11, locking ball 17 can only be in the wherein locating slot 16 of heavy wall tubing 1, sliding sleeve 10 is locked on the heavy wall tubing 1, and sliding sleeve 10 can not move vertically.
When needs are adjusted the position of sliding sleeve 10, as shown in Figure 2, in cylinder sleeve 4, advance pressure oil from oil-in 14, promote piston 11 compression reseting springs 13 and move to right dead point, this moment is because there is the inclined-plane at locating slot 16 two ends on the heavy wall tubing 1, therefore, vertically during moving sliding sleeve 10, locking ball 17 is under the extruding on locating slot 16 inclined-planes, radially outwards move, fall between piston 11 and the sliding sleeve 10 and stay in the piston annular space of establishing 12, at this moment sliding sleeve 10 is in released state, advance pressure oil by oil-out 15, sliding sleeve 10 can move on heavy wall tubing 1 vertically, when sliding sleeve 10 is adjusted to the position that needs, as shown in Figure 3, cylinder sleeve 4 first pressure releases, at this moment sliding sleeve 10 still is in setting, and piston 11 is only got back to original position under the effect of back-moving spring 13 power, locking ball 17 radially is pressed within the locating slot 16 of setting, sliding sleeve 10 in setting locking, is finished the adjustment process of sliding sleeve 10 positions.
In the foregoing description, the locating slot 16 shown in Fig. 1～3 is four, is the location schematic diagram of four sliding sleeves; Locating slot 16 also can be a plurality of for two, eight or other, and its method of regulating the locking sliding sleeve is same as the previously described embodiments.
The various embodiments described above only are used to illustrate the present invention, and wherein the structure of each parts, connected mode etc. all can change to some extent, and every equivalents of carrying out on the basis of technical solution of the present invention and improvement all should not got rid of outside protection scope of the present invention.
Claims (3)
1. smart well down-hole sliding sleeve locking device, it is characterized in that: it comprises heavy wall tubing, the outer locking fluid cylinder that circumferentially is arranged with of described heavy wall tubing, described locking fluid cylinder comprise fluid cylinder lid and the cylinder sleeve that fuses by bolt; The other end of described fluid cylinder lid connects lower cover and upper cover plate, and the snap ring location by being provided with between described upper cover plate and the described heavy wall tubing; Be equipped with a sliding sleeve between described locking fluid cylinder and the described heavy wall tubing, be provided with a piston between described sliding sleeve and the described cylinder sleeve, be installed with the piston annular space between described piston and the described sliding sleeve, be provided with back-moving spring between described piston and the described cylinder sleeve; Described fluid cylinder covers and is provided with an oil-in that is communicated with in the described cylinder sleeve, and described cylinder sleeve is provided with one and is communicated with outside oil-out; The contact position of described heavy wall tubing and described sliding sleeve is arranged at intervals with some locating slots and a location steel ball; Described sliding sleeve is provided with a keyway mouth, and correspondence is provided with a feather key in the described keyway mouth.
2. a kind of smart well as claimed in claim 1 down-hole sliding sleeve locking device, it is characterized in that: described locating slot is four.
3. method of operating of smart well down-hole sliding sleeve locking device as claimed in claim 1 or 2, it may further comprise the steps:
During the oil-gas Layer ordinary production, piston is in the dead point, left side near fluid cylinder lid end under the effect of back-moving spring, be subjected to the radially restriction of piston, and locking ball is in heavy wall tubing wherein in the locating slot, and sliding sleeve is locked on the heavy wall tubing;
When needs are adjusted the position of sliding sleeve, from oil-in oil-feed in cylinder sleeve, promote the piston compression reseting spring and move to right dead point, locking ball falls into and stays between piston and the sliding sleeve in the piston annular space of establishing simultaneously, this moment, sliding sleeve was in released state, axially adjusted the sliding sleeve position;
After the adjustment of sliding sleeve position finishes, the cylinder sleeve pressure release, piston is got back to original position under the effect of back-moving spring power, and locking ball radially is pressed in the locating slot of setting, and sliding sleeve is locked at setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010614232 CN102094596B (en) | 2010-12-30 | 2010-12-30 | Locking device for downhole sliding sleeve of intelligent well and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010614232 CN102094596B (en) | 2010-12-30 | 2010-12-30 | Locking device for downhole sliding sleeve of intelligent well and operation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102094596A true CN102094596A (en) | 2011-06-15 |
| CN102094596B CN102094596B (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010614232 Active CN102094596B (en) | 2010-12-30 | 2010-12-30 | Locking device for downhole sliding sleeve of intelligent well and operation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278078A (en) * | 2011-07-12 | 2011-12-14 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Anti-pull-off protector for coiled tubing and application method thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2079820A (en) * | 1980-07-14 | 1982-01-27 | Baker Int Corp | Method and apparatus for permanently locking open a well flow control device |
| EP0585097A2 (en) * | 1992-08-21 | 1994-03-02 | Halliburton Company | Mechanical cementing packer collar |
| CN2232975Y (en) * | 1995-05-24 | 1996-08-14 | 玉环县石油机械厂 | Well hydraulic programme controller |
| US5826652A (en) * | 1997-04-08 | 1998-10-27 | Baker Hughes Incorporated | Hydraulic setting tool |
| CN2453121Y (en) * | 2000-12-01 | 2001-10-10 | 中国石油化工股份有限公司河南油田分公司第一采油厂 | Percussion type back-off sub |
| US20030019622A1 (en) * | 2001-07-27 | 2003-01-30 | Goodson James Edward | Downhole actuation system utilizing electroactive fluids |
| CN2688888Y (en) * | 2004-03-23 | 2005-03-30 | 中国石化胜利油田有限公司采油工艺研究院 | Squeezing filled sand preventing column without casing pressure |
| CN101008408A (en) * | 2006-12-31 | 2007-08-01 | 天津爱博生技术开发有限公司 | Normal and reverse circulating jet pump with hydraulically-driven multiple switching sliding sleeve |
| CN201209428Y (en) * | 2008-06-06 | 2009-03-18 | 徐恩 | Work regulating and controlling linkage drip |
| CN201310334Y (en) * | 2008-12-24 | 2009-09-16 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Oil gas well security closed swabbing pulling-out device |
| AU2009242942A1 (en) * | 2008-04-29 | 2009-11-05 | Packers Plus Energy Services Inc. | Downhole sub with hydraulically actuable sleeve valve |
| CN201687435U (en) * | 2010-04-21 | 2010-12-29 | 中国石油化工股份有限公司 | Annular relief valve |
| CN201963258U (en) * | 2010-12-30 | 2011-09-07 | 中国海洋石油总公司 | Intelligent well underground sliding sleeve fastening device |
-
2010
- 2010-12-30 CN CN 201010614232 patent/CN102094596B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2079820A (en) * | 1980-07-14 | 1982-01-27 | Baker Int Corp | Method and apparatus for permanently locking open a well flow control device |
| EP0585097A2 (en) * | 1992-08-21 | 1994-03-02 | Halliburton Company | Mechanical cementing packer collar |
| EP0585097A3 (en) * | 1992-08-21 | 1995-01-11 | Halliburton Co | Mechanical cementing packer collar. |
| CN2232975Y (en) * | 1995-05-24 | 1996-08-14 | 玉环县石油机械厂 | Well hydraulic programme controller |
| US5826652A (en) * | 1997-04-08 | 1998-10-27 | Baker Hughes Incorporated | Hydraulic setting tool |
| CN2453121Y (en) * | 2000-12-01 | 2001-10-10 | 中国石油化工股份有限公司河南油田分公司第一采油厂 | Percussion type back-off sub |
| US20030019622A1 (en) * | 2001-07-27 | 2003-01-30 | Goodson James Edward | Downhole actuation system utilizing electroactive fluids |
| CN2688888Y (en) * | 2004-03-23 | 2005-03-30 | 中国石化胜利油田有限公司采油工艺研究院 | Squeezing filled sand preventing column without casing pressure |
| CN101008408A (en) * | 2006-12-31 | 2007-08-01 | 天津爱博生技术开发有限公司 | Normal and reverse circulating jet pump with hydraulically-driven multiple switching sliding sleeve |
| AU2009242942A1 (en) * | 2008-04-29 | 2009-11-05 | Packers Plus Energy Services Inc. | Downhole sub with hydraulically actuable sleeve valve |
| CN201209428Y (en) * | 2008-06-06 | 2009-03-18 | 徐恩 | Work regulating and controlling linkage drip |
| CN201310334Y (en) * | 2008-12-24 | 2009-09-16 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Oil gas well security closed swabbing pulling-out device |
| CN201687435U (en) * | 2010-04-21 | 2010-12-29 | 中国石油化工股份有限公司 | Annular relief valve |
| CN201963258U (en) * | 2010-12-30 | 2011-09-07 | 中国海洋石油总公司 | Intelligent well underground sliding sleeve fastening device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278078A (en) * | 2011-07-12 | 2011-12-14 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Anti-pull-off protector for coiled tubing and application method thereof |
| CN102278078B (en) * | 2011-07-12 | 2013-05-29 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Anti-pull-off protector for coiled tubing and application method thereof |
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| Publication number | Publication date |
|---|---|
| CN102094596B (en) | 2013-08-21 |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee after: China National Offshore Oil Corporation Patentee after: CNOOC Research Institute Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Research Center |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |