CN202284451U - Anti-breakaway release device for steam injection string of thickened oil thermal recovery well - Google Patents
Anti-breakaway release device for steam injection string of thickened oil thermal recovery well Download PDFInfo
- Publication number
- CN202284451U CN202284451U CN201120339878XU CN201120339878U CN202284451U CN 202284451 U CN202284451 U CN 202284451U CN 201120339878X U CN201120339878X U CN 201120339878XU CN 201120339878 U CN201120339878 U CN 201120339878U CN 202284451 U CN202284451 U CN 202284451U
- Authority
- CN
- China
- Prior art keywords
- steam injection
- injection string
- oil thermal
- uncoupling body
- string
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses an anti-breakaway release device for a steam injection string of a thickened oil thermal recovery well, and is particularly suitable for the steam injection string of a horizontal thickened oil thermal recovery well so as to take out the steam injection string conveniently and avoid complicated downhole accidents. The device comprises an upper joint, wherein a connecting sleeve is sleeved outside the upper joint; a thrust bearing is arranged between the upper joint and the sleeve; the connecting sleeve is connected with an uncoupling body; a setting mechanism is arranged in the uncoupling body; a release mechanism is arranged outside the uncoupling body; and the uncoupling body is clamped with the release mechanism so as to take out the steam injection string conveniently. The device is reliable in work, convenient to use and easy to operate, and in the using process, a thickened oil thermal well sealing device and a horizontal-section string can flexibly rotate relative to each other; and in the salvage process, once the string cannot be lifted, an upper part and a lower part connected with the device can break away from each other, complicated accidents are avoided, and a string part above the uncoupling body can be lifted first so as to treat the string part on a horizontal section by employing other measures.
Description
Technical field
The utility model belongs to the downhole tool of petroleum industry producing well, and particularly thick oil thermal extraction steam injection string anti-rotation is taken off releasing device, in the steam injection string in particular for the heavy crude heat extraction horizontal well, makes things convenient for the proposition of steam injection string, avoids down-hole accident complicated.
Background technology
At present; Thick oil thermal extraction, particularly the heavy crude heat extraction horizontal well is increasing; The notes packing pipe post of heavy crude heat extraction horizontal well adopts packing device to add the instlated tubular structure; Not enough below in the operation process of reality, existing: 1, the packing device bottom is connected with and annotates the vapour instlated tubular, and tonnage is big, and all is in horizontal segment.For the packing device that the tubing string packing is transferred in rotation, rotating seat envelope difficulty is big, and the workload of underground work is big, and seat envelope effect is undesirable; 2, when needs propose to annotate packing pipe post, because the viscosity of crude of horizontal segment is big, packer bottom instlated tubular is very big by sticking dead possibility, when proposing tubing string, need use very big strength, all might can not carry, and causes the probability of down-hole accident big.
Summary of the invention
The purpose of the utility model provides thick oil thermal extraction steam injection string anti-rotation and takes off releasing device, solves above-mentioned steam injection string and proposes difficult problem, avoids down-hole accident complicated, reduces production costs.
The technical solution of the utility model is: thick oil thermal extraction steam injection string anti-rotation is taken off releasing device and is comprised top connection, and top connection is with adapter sleeve outward, and between is provided with the promotion bearing; Adapter sleeve is connected with the uncoupling body, mount pad sealing mechanism in the uncoupling body, and the uncoupling external is installed releasing gadget.Uncoupling body and releasing gadget clamping make things convenient for the proposition of steam injection string.
The beneficial effect of the utility model is: top connection of this device and packing device thread connection, in the middle of top connection and the adapter sleeve promotion bearing is housed, and guaranteed flexibility in relative rotation.Adapter sleeve and uncoupling body thread connection, the uncoupling body blocks guide pin bushing under the constraint of valve pocket, guide pin bushing and lower contact thread connection, lower contact and heat-proof string thread connection.Boss on the uncoupling body snaps in the groove of circle in the guide pin bushing bottom, and uncoupling body 5 can not relatively rotate with the bottom tubing string, has guaranteed the solid and reliable and safety of each point of attachment.When rotating seat seals, owing to promote the effect of bearing this device and the tubing string of horizontal segment can be relatively rotated like this, resistance is little.This device reliable operation, easy to use, simple to operate, can realize that in use viscous crude hot well packing device and horizontal segment tubing string are relative to rotating flexibly.In the process of salvaging,, tubing string puies forward motionless situation in case taking place; The two-part disengaging up and down that the ability realization is connected with this device avoids accident complicated, can propose the above tubing string part of uncoupling body earlier; So that adopt the tubing string part of other measure processing horizontal sections, have tangible economic benefit.
Description of drawings
Accompanying drawing is the structural representation of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description: consult accompanying drawing, thick oil thermal extraction steam injection string anti-rotation is taken off releasing device and is comprised top connection 1, the top connection 1 outer adapter sleeve 2 that is with, and between is provided with and promotes bearing 3; Adapter sleeve 2 is connected with uncoupling body 5, mount pad sealing mechanism in uncoupling body 5, the uncoupling body 5 outside releasing gadgets of installing.The lower end cylindrical of uncoupling body 5 is provided with boss, and body has groove downwards from the middle part, and circle is provided with at a distance from platform in it; Uncoupling body 5 and releasing gadget clamping.Releasing gadget comprises guide pin bushing 6 and lower contact 8, guide pin bushing 6 and lower contact 8 screwed connections.Circle is provided with groove in the lower end of guide pin bushing 6, and this groove cooperates with the boss of uncoupling body 5 lower end cylindricals.The boss that is uncoupling body 5 lower end cylindricals is stuck in this groove, realizes the clamping of uncoupling body 5 and guide pin bushing 6.The seat sealing mechanism comprises pull bar 4 and valve pocket 7, and the upper end cylindrical of pull bar 4 is provided with step, its underpart cylindrical and valve pocket 7 screwed connections.The cylindrical shell of valve pocket 7 is provided with pressure relief vent 10, and circle being provided with sealed ball seat in its underpart, justifies in the bottom of its top cylindrical and uncoupling body 5 to cooperate, and valve pocket 7 is connected through shear pin 9 with lower contact 8.The internal diameter of circle is greater than the internal diameter of circle in the top in lower contact 8 bottoms, and when valve pocket 7 goes downwards to design runlength, its relief hole 10 gets into bowlder in the bottom of lower contacts 8, realization pressure release function.
When needs are salvaged whole steam injection string, in case the horizontal segment tubing string below the packing device is glued dead by crude oil and carries motionless.In tubing string, drop into the sealed ball seat that steel ball gets into this device valve pocket 7, sealing tubing string internal channel.Beat hydraulic pressure on ground, liquid gets into valve pocket 7 along tubing string, and under the effect of hydraulic pressure, shear pin 9 is cut off, and valve pocket 7 is together descending with pull bar 4.When valve pocket 7 went downwards to design runlength, pull bar 4 stopped by separated the platforms of circle in the uncoupling body 5, this moment pressure relief vent 10 with the bottom of lower contact 8 in round communicating, pressure decline.The upper lifting pipe post can make uncoupling body 5 propose smoothly, with the top proposition of connected whole tubing string, has avoided the complicated of accident, after this can adopt other measures to handle the bottom tubing string again.
Claims (7)
1. thick oil thermal extraction steam injection string anti-rotation is taken off releasing device, it is characterized in that this device comprises top connection (1), the outer adapter sleeve (2) that is with of top connection (1), and between is provided with and promotes bearing (3); Adapter sleeve (2) is connected with uncoupling body (5), mount pad sealing mechanism in uncoupling body (5), the outside releasing gadget of installing of uncoupling body (5).
2. thick oil thermal extraction steam injection string anti-rotation as claimed in claim 1 is taken off releasing device, it is characterized in that the lower end cylindrical of said uncoupling body (5) is provided with boss, and body has groove downwards from the middle part, and circle is provided with at a distance from platform in it; Uncoupling body (5) and releasing gadget clamping.
3. according to claim 1 or claim 2 thick oil thermal extraction steam injection string anti-rotation is taken off releasing device, it is characterized in that said releasing gadget comprises guide pin bushing (6) and lower contact (8), guide pin bushing (6) and lower contact (8) screwed connection.
4. thick oil thermal extraction steam injection string anti-rotation as claimed in claim 3 is taken off releasing device, it is characterized in that circle is provided with groove in the lower end of guide pin bushing (6), and this groove cooperates with the boss of uncoupling body (5) lower end cylindrical.
5. thick oil thermal extraction steam injection string anti-rotation as claimed in claim 3 is taken off releasing device, it is characterized in that the internal diameter of the internal diameter of circle in lower contact (8) bottom greater than circle in the top.
6. thick oil thermal extraction steam injection string anti-rotation as claimed in claim 1 is taken off releasing device, it is characterized in that said seat sealing mechanism comprises pull bar (4) and valve pocket (7), and the upper end cylindrical of pull bar (4) is provided with step, its underpart cylindrical and valve pocket (7) screwed connection.
7. thick oil thermal extraction steam injection string anti-rotation as claimed in claim 6 is taken off releasing device; The cylindrical shell that it is characterized in that said valve pocket (7) is provided with pressure relief vent (10); Circle is provided with sealed ball seat in its underpart; Circle cooperates in the bottom of its top cylindrical and uncoupling body (5), and valve pocket (7) is connected through shear pin (9) with lower contact (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120339878XU CN202284451U (en) | 2011-08-29 | 2011-08-29 | Anti-breakaway release device for steam injection string of thickened oil thermal recovery well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120339878XU CN202284451U (en) | 2011-08-29 | 2011-08-29 | Anti-breakaway release device for steam injection string of thickened oil thermal recovery well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202284451U true CN202284451U (en) | 2012-06-27 |
Family
ID=46295977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120339878XU Expired - Fee Related CN202284451U (en) | 2011-08-29 | 2011-08-29 | Anti-breakaway release device for steam injection string of thickened oil thermal recovery well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202284451U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106320998A (en) * | 2015-06-16 | 2017-01-11 | 中国石油天然气股份有限公司 | Horizontal well process pipe column and casing hanger releasing method thereof |
-
2011
- 2011-08-29 CN CN201120339878XU patent/CN202284451U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106320998A (en) * | 2015-06-16 | 2017-01-11 | 中国石油天然气股份有限公司 | Horizontal well process pipe column and casing hanger releasing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105781483B (en) | A kind of recoverable hydraulic packer | |
| CN105840126B (en) | A kind of hanger running tool given up that links | |
| CN201650256U (en) | Ball seat type cracking slide sleeve | |
| CN102418478B (en) | Operation method of hollow guider by using multilateral well windowing sidetrack drilling | |
| CN201924870U (en) | Hydraulic setting tool | |
| CN202866673U (en) | Clamping claw type release connector | |
| CN202284451U (en) | Anti-breakaway release device for steam injection string of thickened oil thermal recovery well | |
| CN201443351U (en) | Novel packer | |
| CN206376810U (en) | Long packing element packer for oil field isolation | |
| CN201843556U (en) | Hydraulic withdrawable overshot | |
| CN202914019U (en) | Packer seat sealing mechanism for coiled tubing | |
| CN201474656U (en) | Retrievable water shutoff pipe column tool | |
| CN203347718U (en) | Running tool for hydraulic packer | |
| CN202157784U (en) | Underground check valve | |
| CN205382901U (en) | Two effect pressurization formula coring tool of hydraulic machinery | |
| CN201276993Y (en) | Novel anti-propping slips | |
| CN202866701U (en) | Releasing tool used for releasing tubular column | |
| CN201972658U (en) | Blanking plug in oil pipe | |
| CN202402003U (en) | Lead sealing sand control packer for 4-inch small holes | |
| CN202560154U (en) | Venting cable-penetrated packer | |
| CN201258702Y (en) | Mechanical anti-jack slip capable of dragging | |
| CN204212724U (en) | Integrated form coring tool | |
| CN205078208U (en) | Oil field horizontal well oil production pipe string breaking and falling prevention well device | |
| CN205154094U (en) | Wire rope carries formula blanking plug | |
| CN202954764U (en) | Hydraulic anchor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120627 Termination date: 20140829 |
|
| EXPY | Termination of patent right or utility model |