CN105927196B - Horizontal well thermal recovery thermal compensator - Google Patents
Horizontal well thermal recovery thermal compensator Download PDFInfo
- Publication number
- CN105927196B CN105927196B CN201610501748.9A CN201610501748A CN105927196B CN 105927196 B CN105927196 B CN 105927196B CN 201610501748 A CN201610501748 A CN 201610501748A CN 105927196 B CN105927196 B CN 105927196B
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- CN
- China
- Prior art keywords
- wall
- external bushing
- ring
- semi
- horizontal well
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B17/08—Casing joints
Abstract
The present invention relates to thermal compensator technical fields, it is a kind of horizontal well thermal recovery thermal compensator, it includes cylinder, external bushing, elastomeric element and connector, external bushing is equipped on the outside of cylinder, the groove of opening outwardly is equipped on cylinder body outer wall, resin gasket and semi-ring are sequentially installed from the inside to the outside in groove, the outer edge of semi-ring is higher by the top of groove, elastomeric element includes screw rod and compressed spring, threaded hole is equipped on external bushing, the screw rod withstood on semi-ring is installed in threaded hole, compressed spring in compression shape is installed between semi-ring and screw rod, the right part inner wall of external bushing and the left part outer wall of connector are fixed together.Reasonable and compact in structure of the present invention, it is acted on by the mutual cooperation between resin gasket, semi-ring and compressed spring, when resin gasket melts under high temperature action, spring pushes semi-ring to be caught in the slot of cylinder body outer wall, the fixed function of semi-ring is made to fail, so as to which thermal production well device be made to be in free state.
Description
Technical field
The present invention relates to thermal compensator technical fields, are a kind of horizontal well thermal recovery thermal compensators.
Background technology
At present, in oil thermal recovery well well cementing process, thermal production well sleeve string can become as elongation occurs for the injection of high-temperature steam
Shape, casing damage it is main the reason is that casing bears tensile stress when steam injection is heated, bear compression stress again after cooling,
The extension pup joint pin bearing capacity controlled in the prior art using pin is small, there are the feelings cut during setting of casing
Condition, so as to which extension pup joint be made to shorten in advance, it is impossible to realize the effect of extension pup joint, screw thread is caused to damage, so as to affect the later stage
Production operation.
Invention content
The present invention provides a kind of horizontal well thermal recovery thermal compensators, overcome the deficiency of the above-mentioned prior art, can have
Pin bearing capacity is small when effect solves to use the extension pup joint of pin control in the prior art, there is easily quilt during setting of casing
The problem of cutting.
The technical scheme is that realized by following measures：A kind of horizontal well thermal recovery thermal compensator includes cylinder
Body, external bushing, elastomeric element and connector are equipped with external bushing on the outside of cylinder, and the groove of opening outwardly is equipped on cylinder body outer wall,
Resin gasket and semi-ring are sequentially installed from the inside to the outside, the outer edge of semi-ring is higher by the top of groove, elastomeric element packet in groove
Screw rod and compressed spring are included, threaded hole is equipped on external bushing, the screw rod withstood on semi-ring is installed in threaded hole,
Compressed spring in compression shape is installed, the right part inner wall of external bushing and the left part outer wall of connector, which are fixed, to be connected between semi-ring and screw rod
It is connected together.
Here is the further optimization and/or improvements to foregoing invention technical solution：
It is above-mentioned that mutual corresponding through-hole can be equipped on external bushing and semi-ring, position-limitting pin is installed in through-hole.
In left narrow right wide step-like on the outside of above-mentioned cylinder, the inside of external bushing is in left narrow right wide step-like, external bushing
Left part be sleeved on the left part of cylinder, be equipped with anti-rotation groove in the left part of external bushing, being fixed with inside on anti-rotation groove withstands on cylinder
Anti-turn screw.
Above-mentioned external bushing can be threadably secured with connector and link together.
At least one O-ring seal can be equipped between above-mentioned cylinder body outer wall and external bushing inner wall, the inner wall of external bushing is with connecing
At least one sealing ring can be equipped between head inner wall.
Above-mentioned groove is two and is symmetrical arranged.
Reasonable and compact in structure of the present invention, it is easy to use, made by the mutual cooperation between resin gasket, semi-ring and spring
With during thermal production well, when resin gasket melts under high temperature action, spring promotion semi-ring is caught in the slot of cylinder body outer wall
It is interior, the fixed function of semi-ring is made to fail, so as to which cylinder be made to be in free state.The shortening of extension pup joint cylinder is controlled by temperature
It is more relatively reliable than the fixation of general pin, it reduces cylinder and is risk of damage to.
Description of the drawings
Attached drawing 1 is the main view half section schematic of preferred embodiment.
Attached drawing 2 is partial enlargement structural representation of the attached drawing 1 at I.
Attached drawing 3 is schematic cross-sectional view of the attached drawing 1 at A-A.
Attached drawing 4 is original state structure diagram of the present invention.
Attached drawing 5 is structure diagram after present invention construction.
Coding in attached drawing is respectively：1 is cylinder, and 2 be external bushing, and 3 be connector, and 4 be resin gasket, and 5 be semi-ring, and 6 are
Position-limitting pin, 7 be anti-rotation pin, and 8 be 0 type sealing ring, and 9 be compressed spring, and 10 be screw rod.
Specific embodiment
The present invention is not limited by following embodiments, can be determined according to the technique and scheme of the present invention with actual conditions specific
Embodiment.
In the present invention, for ease of description, the description of the relative position relation of each component is according to Figure of description 1
Butut mode be described, such as：The position relationship of forward and backward, upper and lower, left and right etc. is the Butut according to Figure of description
Direction is come determining.
With reference to embodiment and attached drawing, the invention will be further described：
As shown in attached drawing 1 to 5, which includes cylinder 1, external bushing 2, elastomeric element and connector
3, external bushing 2 is equipped in 1 outside of cylinder, the groove of opening outwardly is equipped on 1 outer wall of cylinder, is sequentially pacified from the inside to the outside in groove
Equipped with resin gasket 4 and semi-ring 5, the outer edge of semi-ring 5 is higher by the top of groove, and elastomeric element includes screw rod 10 and compressed spring
9, threaded hole is equipped on external bushing 2, the screw rod 10 withstood on semi-ring 5 is installed in threaded hole, in semi-ring 5 and screw rod
Compressed spring 9 in compression shape is installed, the right part inner wall of external bushing 2 is fixedly connected on the left part outer wall of connector 3 between 10
Together.During thermal production well, when resin gasket 4 melts under high temperature action, compressed spring 9 pushes semi-ring 5 to be caught in cylinder 1
In the groove of outer wall, the fixed function of semi-ring 5 is made to fail, so as to which thermal compensator be made to be in free state.It is controlled by temperature
The shortening of extension pup joint cylinder is more relatively reliable than the fixation of general pin, reduces the risk of cylinder damage.
Above-mentioned horizontal well thermal recovery thermal compensator can be made further optimization and/or improvements according to actual needs：
As shown in attached drawing 1,2,3, mutual corresponding through-hole is equipped on external bushing 2 and semi-ring 5, is fixedly mounted in through-hole
There is position-limitting pin 6.Here, external bushing 2 and semi-ring 5 further limit by position-limitting pin 6 and be fixed, effectively prevent bullet
Property component and semi-ring 5 between fix it is insecure cause whole device occur position offset.Here, during thermal production well, with
The fusing of resin gasket 4, semi-ring 5 are caught in 1 unit with grooves in outer wall of cylinder, and at this moment external bushing 2 is moved to the left, and position-limitting pin 6 is cut.
As needed, through-hole can set 2.It is more uniformly stressed in this way.
As shown in attached drawing 1,2,3, the outside of cylinder 1 is in left narrow right wide step-like, and the inside of external bushing 2 is in left narrow right wide
Step-like, the left part of external bushing 2 is sleeved on the left part of cylinder 1, and anti-rotation groove is equipped in the left part of external bushing 2, fixed on anti-rotation groove
There is the internal anti-turn screw 7 withstood on cylinder 1.Here, for the present invention in original state, anti-rotation pin 7 plays axial restraint cylinder
The effect of body 1 and external bushing 2 prevents from relatively rotating between cylinder 1 and external bushing 2.When resin gasket 4 melts under high temperature action
Change, as compressed spring 9 pushes semi-ring 5 to be caught in the groove of 1 outer wall of cylinder, cylinder 1 and external bushing 2 lose position-limiting action；With
It external bushing 2 to be moved to the left, anti-rotation pin 7 is detached from the anti-rotation groove on external bushing 2, so as to lose to the anti-of cylinder 1 and external bushing 2
Turn fixed function.
As shown in attached drawing 1,2,3, external bushing 2 is threadably secured with connector 3 and links together.In 2 right part of external bushing
Wall is equipped with internal thread, is equipped with external screw thread in the left part outer wall of connector 3,2 right part inner wall of external bushing and the left part outer wall of connector 3 lead to
It crosses internal thread and external screw thread is fixedly connected, in this way the installation and removal convenient for external bushing 2 and connector 3.
As shown in attached drawing 1,2,3, at least one O-ring seal is equipped between 2 inner wall of 1 outer wall of cylinder and external bushing
8, at least one O-ring seal 8 is equipped between 3 inner wall of inner wall and connector of external bushing 2.In this way, O-ring seal 8 can play more
Good sealing effect.
As shown in attached drawing 1,2,3, the groove is two and is symmetrical arranged.Here groove there are two being set on cylinder 1, it is recessed
Fixing resin gasket 4 and semi-ring 5 in slot can promote external bushing to be in free state with cylinder faster after construction.
More than technical characteristic constitutes highly preferred embodiment of the present invention, is imitated with stronger adaptability and best implementation
Fruit can increase and decrease non-essential technical characteristic, to meet the needs of different situations according to actual needs.
Claims (10)
1. a kind of horizontal well thermal recovery thermal compensator, it is characterised in that including cylinder, external bushing, elastomeric element and connector, in cylinder
External side is equipped with external bushing, and the groove of opening outwardly is equipped on cylinder body outer wall, resin is sequentially equipped with from the inside to the outside in groove
Gasket and semi-ring, the outer edge of semi-ring are higher by the top of groove, and elastomeric element includes screw rod and compressed spring, set on external bushing
There is threaded hole, the screw rod withstood on semi-ring is installed in threaded hole, be equipped between semi-ring and screw rod in compression shape
Compressed spring, the right part inner wall of external bushing and the left part outer wall of connector are fixed together.
2. horizontal well thermal recovery thermal compensator according to claim 1, it is characterised in that external bushing and semi-ring are equipped with phase
Mutual corresponding through-hole, is installed with position-limitting pin in through-hole.
3. horizontal well thermal recovery thermal compensator according to claim 1 or 2, it is characterised in that in left narrow right width on the outside of cylinder
It is step-like, the inside of external bushing is in left narrow right wide step-like, and the left part of external bushing is sleeved on the left part of cylinder, in external bushing
Left part is equipped with anti-rotation groove, and the internal anti-turn screw withstood on cylinder is fixed on anti-rotation groove.
4. horizontal well thermal recovery thermal compensator according to claim 1 or 2, it is characterised in that external bushing passes through spiral shell with connector
Line is fixed together.
5. horizontal well thermal recovery thermal compensator according to claim 3, it is characterised in that external bushing passes through screw thread with connector
It is fixed together.
6. the horizontal well thermal recovery thermal compensator according to claims 1 or 2 or 5, it is characterised in that cylinder body outer wall and outer lining
At least one O-ring seal is equipped between set inner wall, at least one sealing ring is equipped between the inner wall and inner nosepiece wall of external bushing.
7. horizontal well thermal recovery thermal compensator according to claim 3, it is characterised in that cylinder body outer wall and external bushing inner wall
Between be equipped at least one O-ring seal, between the inner wall and inner nosepiece wall of external bushing be equipped at least one sealing ring.
8. horizontal well thermal recovery thermal compensator according to claim 4, it is characterised in that cylinder body outer wall and external bushing inner wall
Between be equipped at least one O-ring seal, between the inner wall and inner nosepiece wall of external bushing be equipped at least one sealing ring.
9. horizontal well thermal recovery thermal compensator according to claim 6, it is characterised in that the groove is for two and right
Claim setting.
10. horizontal well thermal recovery thermal compensator according to claim 7 or 8, it is characterised in that the groove is two
And it is symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610501748.9A CN105927196B (en) | 2016-06-30 | 2016-06-30 | Horizontal well thermal recovery thermal compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610501748.9A CN105927196B (en) | 2016-06-30 | 2016-06-30 | Horizontal well thermal recovery thermal compensator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927196A CN105927196A (en) | 2016-09-07 |
| CN105927196B true CN105927196B (en) | 2018-07-06 |
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ID=56829829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610501748.9A Active CN105927196B (en) | 2016-06-30 | 2016-06-30 | Horizontal well thermal recovery thermal compensator |
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| CN (1) | CN105927196B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020104022B3 (en) * | 2020-02-17 | 2021-08-12 | Md Elektronik Gmbh | Short-circuit pin, plug connection with such a short-circuit pin and a method for producing such a short-circuit pin |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747150A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Thermo-sensitive type heat compensator |
| CN204691754U (en) * | 2015-06-04 | 2015-10-07 | 江苏进源压力容器有限公司 | A kind of thermal stress compensator |
| CN205135446U (en) * | 2015-10-26 | 2016-04-06 | 中国石油集团西部钻探工程有限公司 | Thermal production well is with flexible nipple joint |
| CN205876285U (en) * | 2016-06-30 | 2017-01-11 | 中国石油集团西部钻探工程有限公司 | Thermal recovery horizontal well heating power compensator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0412131D0 (en) * | 2004-05-29 | 2004-06-30 | Weatherford Lamb | Coupling and seating tubulars in a bore |
-
2016
- 2016-06-30 CN CN201610501748.9A patent/CN105927196B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747150A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Thermo-sensitive type heat compensator |
| CN204691754U (en) * | 2015-06-04 | 2015-10-07 | 江苏进源压力容器有限公司 | A kind of thermal stress compensator |
| CN205135446U (en) * | 2015-10-26 | 2016-04-06 | 中国石油集团西部钻探工程有限公司 | Thermal production well is with flexible nipple joint |
| CN205876285U (en) * | 2016-06-30 | 2017-01-11 | 中国石油集团西部钻探工程有限公司 | Thermal recovery horizontal well heating power compensator |
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| Publication number | Publication date |
|---|---|
| CN105927196A (en) | 2016-09-07 |
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| C10 | Entry into substantive examination | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201106 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 830026 science and technology management division, West drilling and Drilling Engineering Institute, No. 326 South Central Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region, China Patentee before: CNPC Xibu Drilling Engineering Co.,Ltd. |
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| TR01 | Transfer of patent right |