CN205714017U - Thermal production well sleeve retractor device - Google Patents
Thermal production well sleeve retractor device Download PDFInfo
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- CN205714017U CN205714017U CN201620674256.5U CN201620674256U CN205714017U CN 205714017 U CN205714017 U CN 205714017U CN 201620674256 U CN201620674256 U CN 201620674256U CN 205714017 U CN205714017 U CN 205714017U
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- urceolus
- inner core
- production well
- retractor device
- hypomere
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Abstract
This utility model relates to the technical field of oil field Telescopic short piece, it it is a kind of thermal production well sleeve retractor device, it includes box cupling, inner core, urceolus, annular fixed claw, resin support bushing and joint, the epimere of inner core is threadeded with box cupling, the hypomere of inner core is threadeded with annular fixed claw, the stage casing of urceolus is provided with in the groove of one annular, and the rear side of annular fixed claw is provided with resin support bushing, and the hypomere of urceolus is connected with joint screw thread.This utility model reasonable and compact in structure, by the way of thermal production well sleeve retractor device being installed between adjacent two sleeve pipes when well cementation, not only it is effectively offset the deformation quantity after sleeve pipe expanded by heating, avoid the lifting of well head, in ensure that well, cement sheath is not destroyed, and simple to operate, time saving and energy saving, do not limited by geological conditions.
Description
Technical field
This utility model relates to oil field Telescopic short piece technical field, is a kind of thermal production well sleeve retractor device.
Background technology
The Main Means that oil recovery by heating is developed as current heavy oil wells, it can effectively raise reservoir temperature, reduce viscous crude
Viscosity, makes viscous crude readily flowed, thus by viscous crude extraction, define drive with steam soak, steam, hot water flooding, combustion in situ, electricity
The technology such as magnetic heating are the technological frame of representative, and therefore during exploitation, well temperature can be stepped up, and sleeve pipe can be at heating power
Under effect, dilatancy occurring, cause well head lifting, destroy the cement sheath in well, the serious oil well that results even in is scrapped, mesh
The method of front counteracting thermal production well thermal expansion amount is to install earth anchor in shaft bottom, and earth anchor is fixing with the sleeve pipe of bottom to be connected, and is trapping
During pipe well cementation, constantly apply tension to sleeve pipe, make sleeve pipe shift to an earlier date stretcher strain, so after bushing temperature raises,
The thermal expansion amount produced just is substantially reduced, thus reaches to protect the purpose of oil well, but such method not only wastes time and energy, and
And during sleeve pipe is applied tension, it is easy to make the cement sheath solidified be destroyed, affect cementing quality,
Additionally earth anchor cannot use in the place that geology is the loosest, has significant limitation.
Summary of the invention
This utility model provides a kind of thermal production well sleeve retractor device, overcomes the deficiency of above-mentioned prior art, its energy
Effectively solving at present during offsetting thermal production well swell increment, operation wastes time and energy, be easily destroyed cement sheath, earth anchor uses has
Circumscribed problem.
The technical solution of the utility model is realized by following measures: a kind of thermal production well sleeve retractor device, bag
Include box cupling, inner core, urceolus, annular fixed claw, resin support bushing and joint, outside the epimere of inner core with the hypomere of box cupling inside
Threaded, annular fixed claw includes the external screw thread collar and in the ramp-like hook that leans outward, the external screw thread collar and the hypomere of inner core
Inside thread connects, and is at least fixed with two hooks outside on the lower surface of thread ring, and hook is along external screw thread collar lower surface
Horizontal circle circumferential direction be uniformly distributed, the epimere of urceolus is sleeved on the hypomere of inner core, and the stage casing inwall of urceolus is provided with one
The groove of road annular, the lower end outside of hook is provided with outer lug, is provided with in the inner side of hook and outer lug is stuck in groove
Resin support bushing, inside the hypomere of urceolus, the epimere outside screw with joint is connected.
Further optimization and/or improvements to above-mentioned utility model technical scheme are presented herein below:
Being provided with anti-rotation pin between above-mentioned urceolus epimere and inner core hypomere, the number of anti-rotation pin is at least one.
At least provided with an O type sealing ring between above-mentioned inner core and urceolus, at least set between urceolus and joint
It is equipped with a 2nd O type sealing ring.
The top of above-mentioned resin support bushing is positioned at the inner side of hook, the bottom of resin support bushing be positioned at urceolus and its
Lower end offsets with lower contact top.
This utility model reasonable and compact in structure, stretches by installing thermal production well sleeve during well cementation between adjacent two sleeve pipes
The mode of compression apparatus, be not only effectively offset the deformation quantity after sleeve pipe expanded by heating, it is to avoid the lifting of well head, it is ensured that in well
Cement sheath is not destroyed, and simple to operate, time saving and energy saving, is not limited by geological conditions.
Accompanying drawing explanation
Accompanying drawing 1 is that the master of this utility model most preferred embodiment regards broken section structural representation.
Accompanying drawing 2 is that the A-A of accompanying drawing 1 is to sectional structure schematic diagram.
Accompanying drawing 3 is the structural representation after the resin support bushing fusing in accompanying drawing 1.
Accompanying drawing 4 is the inner core in accompanying drawing 3 and the structural representation after urceolus relative motion.
It is box cupling that coding in accompanying drawing is respectively as follows: 1, and 2 is inner core, and 3 is an O type sealing ring, and 4 is anti-rotation pin, and 5 are
The external screw thread collar, 6 is hook, and 7 is urceolus, and 8 is groove, and 9 is resin support bushing, and 10 for for the 2nd O type sealing ring, and 11 for connecing
Head, 12 is outer lug.
Detailed description of the invention
This utility model is not limited by following embodiment, can come with practical situation according to the technical solution of the utility model
Determine specific embodiment.
In this utility model, for the ease of describing, the description of the relative position relation of each parts is all according to description
The Butut mode of accompanying drawing 1 is described, such as: the position relationship of upper and lower, left and right etc. is based on 1 Butut of Figure of description
Direction determines.
Below in conjunction with embodiment and accompanying drawing, this utility model is further described:
As shown in accompanying drawing 1 to 4, this thermal production well sleeve retractor device include box cupling 1, inner core 2, urceolus 7, annular fixed claw,
Resin support bushing 9 and joint 11, outside the epimere of inner core 2, the hypomere inside thread with box cupling 1 is connected, and annular fixed claw includes
The external screw thread collar 5 and in the hook 6 leaning outward ramp-like, the external screw thread collar 5 is connected with the hypomere inside thread of inner core 2, spiral shell outside
At least being fixed with two hooks 6 on the lower surface of the stricture of vagina collar 5, hook 6 is equal along the horizontal circle circumferential direction of the external screw thread collar 5 lower surface
Even distribution, the epimere of urceolus 7 is sleeved on the hypomere of inner core 2, and the stage casing inwall of urceolus 7 is provided with the groove 8 of one annular,
The lower end outside of hook 6 is provided with outer lug 12, is provided with resin support bushing 9, resin support bushing 9 in the inner side of hook 6
Firmly can withstand in groove 8 by the outer lug 12 of hook 6, inside the hypomere of urceolus 7, the epimere outside screw with joint 11 connects
Connecing, when thermal recovery starts, the temperature in sleeve pipe raises, and resin support bushing 9 gradually melts, and hook 6 divides in the groove 8 of annular
From, owing to being separated with a segment distance between lower surface and the upper surface of urceolus 7 of box cupling 1 mutually, inner core 2 and urceolus 7 can be in this sections
Apart from interior generation relative motion, thus offset the deformation quantity that sleeve pipe expanded by heating produces, it is to avoid the lifting of well head, ensure well
The safety of mouth, and simple to operate, time saving and energy saving, do not limited by geological conditions.
According to actual needs above-mentioned thermal production well sleeve retractor device can be made further optimization and/or improvements:
As shown in accompanying drawing 1,2, between urceolus 7 epimere and inner core 2 hypomere, it is provided with anti-rotation pin 4, the number of anti-rotation pin 4
At least one, sleeve pipe so can be avoided to rotate in oil well, it is ensured that well inner structure and the safety of wellhead equipment.
As shown in accompanying drawing 1,2, at least provided with an O type sealing ring 3 between inner core 2 and urceolus 4, urceolus 7 with
At least provided with a 2nd O type sealing ring 10 between joint 11, such design enhances thermal production well sleeve retractor device
Sealing, it is possible to prevent the leakage that thermal production well sleeve retractor device causes owing to self seal is poor.
As shown in accompanying drawing 1,2, for the ease of installing, the top of resin support bushing 9 is positioned at the inner side of hook 6, and resin props up
The bottom of support lining 9 is positioned at urceolus 7 and its lower end and offsets with lower contact 11 top.
Above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger adaptability and optimal enforcement
Effect, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
The use process of this utility model most preferred embodiment: during heavy oil wells well cementation, installs thermal production well between two sleeve pipes
Telescopic extension device, when entering into the thermal recovery stage, in sleeve pipe, temperature can increase, the tree in thermal production well sleeve retractor device
Fat support bushing 9 can gradually melt, and the outer lug 12 on hook 6 is gradually disengaged, due at box cupling 1 in the groove 8 of annular
Being separated with a segment distance between lower surface and the upper surface of urceolus 7 mutually, therefore inner core 2 and urceolus 7 can be relative in this segment distance
Motion, such thermal production well sleeve retractor device just can effectively cancel out the deformation quantity produced due to sleeve pipe expanded by heating, thus
Ensure oil security.
Claims (5)
1. a thermal production well sleeve retractor device, it is characterised in that include that box cupling, inner core, urceolus, annular fixed claw, resin support
Lining and joint, outside the epimere of inner core, the hypomere inside thread with box cupling is connected, annular fixed claw include the external screw thread collar and
In the ramp-like hook that leans outward, the external screw thread collar is connected with the hypomere inside thread of inner core, outside on the lower surface of thread ring
At least being fixed with two hooks, hook is uniformly distributed along the horizontal circle circumferential direction of external screw thread collar lower surface, the epimere set of urceolus
It is contained on the hypomere of inner core, the stage casing inwall of urceolus is provided with the groove of one annular, outside the lower end outside of hook is provided with
Projection, is provided with resin support bushing outer lug being stuck in groove in the inner side of hook, inside the hypomere of urceolus and joint
Epimere outside screw connect.
Thermal production well sleeve retractor device the most according to claim 1, it is characterised in that between urceolus epimere and inner core hypomere
Being provided with anti-rotation pin, the number of anti-rotation pin is at least one.
Thermal production well sleeve retractor device the most according to claim 1 and 2, it is characterised in that between inner core and urceolus at least
It is provided with an O type sealing ring, at least provided with a 2nd O type sealing ring between urceolus and joint.
Thermal production well sleeve retractor device the most according to claim 1 and 2, it is characterised in that the upper bit of resin support bushing
In the inner side of hook, the bottom of resin support bushing is positioned at urceolus and its lower end offsets with lower contact top.
Thermal production well sleeve retractor device the most according to claim 3, it is characterised in that the top of resin support bushing is positioned at
The inner side of hook, the bottom of resin support bushing is positioned at urceolus and its lower end offsets with lower contact top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620674256.5U CN205714017U (en) | 2016-06-30 | 2016-06-30 | Thermal production well sleeve retractor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620674256.5U CN205714017U (en) | 2016-06-30 | 2016-06-30 | Thermal production well sleeve retractor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205714017U true CN205714017U (en) | 2016-11-23 |
Family
ID=57317769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620674256.5U Active CN205714017U (en) | 2016-06-30 | 2016-06-30 | Thermal production well sleeve retractor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205714017U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639903A (en) * | 2016-11-29 | 2017-05-10 | 无锡金顶石油管材配件制造有限公司 | Pipe nipple assembly of thermal compensation petroleum pipeline |
| CN110388183A (en) * | 2019-07-18 | 2019-10-29 | 中国石油天然气集团有限公司 | A kind of double combination casing and its assembly method |
| CN114109273A (en) * | 2020-08-26 | 2022-03-01 | 中国石油化工股份有限公司 | Safety device for thickened oil thermal production well |
-
2016
- 2016-06-30 CN CN201620674256.5U patent/CN205714017U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639903A (en) * | 2016-11-29 | 2017-05-10 | 无锡金顶石油管材配件制造有限公司 | Pipe nipple assembly of thermal compensation petroleum pipeline |
| CN110388183A (en) * | 2019-07-18 | 2019-10-29 | 中国石油天然气集团有限公司 | A kind of double combination casing and its assembly method |
| CN114109273A (en) * | 2020-08-26 | 2022-03-01 | 中国石油化工股份有限公司 | Safety device for thickened oil thermal production well |
| CN114109273B (en) * | 2020-08-26 | 2024-04-19 | 中国石油化工股份有限公司 | Safety device for thickened oil thermal recovery well |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |