CN110847841A - Annular steel plate device - Google Patents
Annular steel plate device Download PDFInfo
- Publication number
- CN110847841A CN110847841A CN201910965016.9A CN201910965016A CN110847841A CN 110847841 A CN110847841 A CN 110847841A CN 201910965016 A CN201910965016 A CN 201910965016A CN 110847841 A CN110847841 A CN 110847841A
- Authority
- CN
- China
- Prior art keywords
- supporting part
- coupling
- steel plate
- annular steel
- face
- 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.)
- Pending
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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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/047—Casing heads; Suspending casings or tubings in well heads for plural tubing strings
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- 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
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
Abstract
The invention relates to the field of oil well operation, in particular to an annular steel plate device which comprises a connector, a supporting part, a production casing and a surface casing, wherein the connector penetrates through the supporting part and is detachably connected with the production casing, the connector is detachably connected with the inner wall surface of the supporting part, and the surface casing is detachably connected with the outer wall surface of the supporting part. According to the invention, as the supporting parts are connected by the threads, the problem of inconvenient connection in site construction is effectively solved, the use efficiency is further improved, and the maintenance cost is reduced.
Description
Technical Field
The invention relates to the field of oil well operation, in particular to an annular steel plate device.
Background
After the completion of the well cementation and completion operation construction and before the later fracturing oil production operation, an annular steel plate device is needed to support between the oil-gas well production casing coupling and the surface casing coupling, so that the production casing does not fall off in the cement slurry solidification process, and the follow-up construction is guaranteed to be carried out orderly.
Disclosure of Invention
The invention provides an annular steel plate device, which solves the technical problem in the prior art that the technical effect is realized.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
the utility model provides an annular steel sheet device, includes connector, supporting part, production sleeve pipe and top layer sleeve pipe, the connector passes the supporting part and can dismantle with the production sleeve pipe and be connected, the connector can be dismantled with the supporting part internal face and be connected, top layer sleeve pipe can be dismantled with the outer wall of supporting part and be connected.
The supporting part is of a cylinder structure, a through hole with threads is axially formed in the supporting part, and the outer wall surface of the connector is in threaded connection with the through hole of the supporting part.
The thread form angle of the through hole in the supporting part is 55 degrees, and the through hole thread in the supporting part has a taper of 1: 16.
The utility model provides an annular steel sheet device still includes first coupling, internal thread has been seted up in the first coupling, the connector passes one end threaded connection in supporting part and the first coupling, other end threaded connection in production sleeve pipe and the first coupling, first coupling is located the surface course cover intraductal.
The outer wall of the supporting part is provided with an external thread, the outer wall of the supporting part is detachably connected with a second coupling, and the other end of the second coupling is detachably connected with the surface casing.
The supporting part upper end is opened in proper order to the outer periphery of lower extreme has plane, spacing face and connection face, plane perpendicular to supporting part upper surface, it has the external screw thread to connect the face to open, connect face and first coupling threaded connection, and first coupling respectively with spacing face and plane contact.
The included angle between the plane and the limiting surface is 120 degrees, and the included angle between the limiting surface and the connecting surface is 136 degrees.
The axial length of the plane, the limiting surface and the connecting surface at the supporting part accounts for 1: 2: 9.
the axial length of the support part is more than 10 cm.
The tooth form angle of the connecting surface thread is 55 degrees, and the connecting surface thread has a taper of 1: 16.
The invention has the beneficial effects that: because the supporting part adopts threaded connection, the problem of inconvenient connection in site construction is effectively solved, the use efficiency is further improved, and the maintenance cost is reduced.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1-a connector; 2-a support part; 3-producing the sleeve; 4-surface casing; 5-a first collar; 6-a second collar; 7-plane; 8-a limiting surface; 9-connecting surface.
Detailed Description
Example 1:
referring to fig. 1, which is a schematic structural view of embodiment 1 of the present invention, an annular steel plate device includes a connector 1, a support portion 2, a production casing 3, and a surface casing 4, where the connector 1 passes through the support portion 2 to be detachably connected to the production casing, the connector 1 is detachably connected to an inner wall surface of the support portion, and the surface casing 4 is detachably connected to an outer wall surface of the support portion 2.
In actual use: firstly connect connector 1 and supporting part 2 internal connection, then be connected production sleeve pipe 3 and 1 one end of connector, then press the production sleeve pipe 3 after will connecting in top layer sleeve pipe 4, then supporting part 2 can be dismantled with top layer sleeve pipe 4 and be connected, accomplish the installation, dock with top layer sleeve pipe 4 through supporting part 2, make production sleeve pipe 3 right, support top layer sleeve pipe 4 through the supporting part simultaneously.
Example 2:
on the basis of example 1, reference is made to fig. 1: the supporting part 2 is of a cylinder structure, a through hole with threads is axially formed in the supporting part 2, the outer wall surface of the connector 1 is in threaded connection with the through hole of the supporting part 2, the thread form angle of the through hole in the supporting part 2 is 55 degrees, and the through hole threads in the supporting part 2 have the taper of 1: 16.
In actual use: through 2 internal threads of supporting part and 1 threaded connection of connector, it is more convenient when the installation, under the damaged condition, the replacement cost is little, and processing is convenient moreover, simplifies the preparation technology, can appear when the unable normal installation of processing deviation through threaded connection in supporting part 2, convenient change.
Example 3:
on the basis of example 2, reference is made to fig. 1: the thread form angle of the through hole in the supporting part 2 is 55 degrees, and the through hole thread in the supporting part 2 has the taper of 1: 16.
In actual use: the thread form angle of the through hole in the supporting part 2 is 55 degrees, and the taper is 1:16, so that the connection stability of the supporting part 2 and the outer wall surface of the outer joint 1 can be ensured, the bearing capacity of the upper joint 1 can be increased, and the falling and thread failure caused by the accidental pressure applied to the upper joint can be prevented.
Example 4:
on the basis of example 1, reference is made to fig. 1: still include first coupling 5, the internal thread has been seted up in first coupling 5, connector 1 passes in supporting part 2 and the first coupling 5 one end threaded connection, other end threaded connection in production sleeve pipe 3 and the first coupling 5, first coupling 5 is located top casing 4.
In actual use: the connection mode of the connector 1 and the production casing 3 is convenient because the connector 1 and the production casing 3 are respectively connected through the first coupling 5 by screw threads.
Example 5:
on the basis of example 1, reference is made to fig. 1: the outer wall of the supporting part 2 is provided with an external thread, the outer wall of the supporting part 2 is detachably connected with a second coupling 6, and the other end of the second coupling 6 is detachably connected with the surface casing 4.
In actual use: the supporting part 2 is connected with the surface casing 4 through the second coupling 6, and the gap between the surface casing 4 and the production casing 3 can be sealed through the supporting part 2, so that the supporting effect is achieved.
Example 6:
on the basis of example 1, reference is made to fig. 1: 2 upper ends of supporting part 2 are opened in proper order to the outer periphery of lower extreme has plane 7, spacing face 8 and is connected face 9, plane 7 perpendicular to 2 upper surfaces of supporting part, it has the external screw thread to connect face 9 to open, connect face 9 and 5 threaded connection of first coupling, and first coupling 5 contacts with spacing face 8 and plane 7 respectively
In actual use: when connecting, at first, supporting part 2 is located in first coupling 5, first coupling 5 is coaxial with supporting part 2, make first coupling 5 earlier with be connected the face 9 screw thread relative, then rotate first coupling 5 or rotate top connection 1 and drive supporting part 2 rotatory, make first coupling 5 with be connected the face threaded connection, when first coupling 5 is rotatory to being close the supporting part 2 upper end, at first 5 upper end internal face of first coupling and plane 7 coincidence, continue to rotate, 5 internal face of first coupling and spacing face 8 contact, continue to rotate simultaneously, because spacing face 8 and the effect of being connected the face 9 screw thread, make first coupling 5 and supporting part 2 zonulae occludens.
Example 7:
on the basis of example 6, reference is made to fig. 1: the included angle between the plane 7 and the limiting surface 8 is 120 degrees, and the included angle between the limiting surface 8 and the connecting surface 9 is 136 degrees
In actual use: owing to connect the slope of face 9, it is bigger to make contact nep when with 5 threaded connection of first coupling to it is more stable, simultaneously through the spacing face 8 of slope, in first coupling 5 with be connected the rotatory tension of face 9, can make 5 upper ends of first coupling expand outward, prevent to rotate tension and make the screw thread directly damage, 120 degrees slopes just satisfy spacing and the guide effect that expands outward.
Example 8:
on the basis of example 6, reference is made to fig. 1: the axial length of the plane 7, the limiting surface 8 and the connecting surface 9 on the supporting part 2 is 1: 2: 9.
in actual use: the axial length of the plane 7, the limiting surface 8 and the connecting surface 9 on the supporting part 2 is 1: 2: 9,1: 2: the proportion of 9 can guarantee that plane 7 prevents that the plane from turning over upwards when first coupling 5 and spacing face 8 contact, makes spacing face 8 lose effect.
Example 9:
on the basis of example 6, reference is made to fig. 1: the axial length of the support part 2 is more than 10 cm.
In actual use: the axial length of the supporting part 2 is greater than 10cm, so that the radial bearing strength of the first coupling 5 can be met, and the first coupling 5 is prevented from deforming and losing action due to external force.
Example 10:
on the basis of example 6, reference is made to fig. 1: the thread form angle of the connecting surface 9 is 55 degrees, and the thread of the connecting surface 9 has a taper of 1: 16.
In actual use: the thread form angle of the connecting surface 9 is 55 degrees, and the taper is 1:16, so that the connection stability of the supporting surface and the first coupling 5 can be ensured, the bearing capacity of the supporting part 2 can be increased, and the phenomenon that the upper joint is accidentally pressed to cause falling, so that the threaded connection between the connecting surface 9 and the first coupling 5 fails can be prevented.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and the scope of the present invention is within the scope of the claims.
Claims (10)
1. An annular steel sheet device which characterized in that: including connector (1), supporting part (2), production sleeve pipe (3) and top layer sleeve pipe (4), connector (1) passes supporting part (2) and can dismantle with the production sleeve pipe and be connected, connector (1) can dismantle with the supporting part internal face and be connected, top layer sleeve pipe (4) can dismantle with supporting part (2) outer wall and be connected.
2. The annular steel plate device of claim 1, wherein: supporting part (2) are the cylinder structure, and supporting part (2) axial has the through-hole of opening the screw thread, the through-hole threaded connection of connector (1) outer wall and supporting part (2).
3. An annular steel plate device according to claim 2, wherein: the thread form angle of the through hole in the supporting part (2) is 55 degrees, and the through hole thread in the supporting part (2) has the taper of 1: 16.
4. The annular steel plate device of claim 1, wherein: still include first coupling (5), internal thread has been seted up in first coupling (5), supporting part (2) and one end threaded connection in first coupling (5) are passed in connector (1), other end threaded connection in production sleeve pipe (3) and first coupling (5), first coupling (5) are located top casing (4).
5. The annular steel plate device of claim 1, wherein: the supporting part (2) outer wall surface is provided with an external thread, the supporting part (2) outer wall surface can be dismantled and is connected with a second coupling (6), the other end of the second coupling (6) can be dismantled and is connected with the surface casing (4).
6. The annular steel plate device of claim 1, wherein: supporting part (2) upper end is opened in proper order to the outer periphery of lower extreme has plane (7), spacing face (8) and is connected face (9), plane (7) perpendicular to supporting part (2) upper surface, it has the external screw thread to connect face (9) to open, connect face (9) and first coupling (5) threaded connection, and first coupling (5) contact with spacing face (8) and plane (7) respectively.
7. An annular steel plate device according to claim 6, wherein: the included angle between plane (7) and spacing face (8) is 120 degrees, the included angle between spacing face (8) and the connection face (9) is 136 degrees.
8. An annular steel plate device according to claim 6, wherein: plane (7), spacing face (8) and connection face (9) are located the axial length of supporting part (2) and account for than being 1: 2: 9.
9. an annular steel plate device according to claim 6, wherein: the axial length of the support part (2) is more than 10 cm.
10. An annular steel plate device according to claim 6, wherein: the thread form angle of the connecting surface (9) is 55 degrees, and the thread of the connecting surface (9) has a taper of 1: 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910965016.9A CN110847841A (en) | 2019-10-11 | 2019-10-11 | Annular steel plate device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910965016.9A CN110847841A (en) | 2019-10-11 | 2019-10-11 | Annular steel plate device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110847841A true CN110847841A (en) | 2020-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910965016.9A Pending CN110847841A (en) | 2019-10-11 | 2019-10-11 | Annular steel plate device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110847841A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2660094Y (en) * | 2003-11-21 | 2004-12-01 | 中国石油天然气股份有限公司 | Sliding coupler of wellhead casing |
| US6971449B1 (en) * | 1999-05-04 | 2005-12-06 | Weatherford/Lamb, Inc. | Borehole conduit cutting apparatus and process |
| CN102606086A (en) * | 2012-03-27 | 2012-07-25 | 无锡西姆莱斯石油专用管制造有限公司 | Connecting joint with special knuckle threads for oil casing |
| CN203463035U (en) * | 2013-07-05 | 2014-03-05 | 宝鸡石油钢管有限责任公司 | Screwed joint for petroleum casing pipe |
| CN105888598A (en) * | 2016-06-24 | 2016-08-24 | 中国石油化工股份有限公司华东油气分公司采油气工程服务中心 | Wellhead sealing device |
| CN208718593U (en) * | 2018-07-24 | 2019-04-09 | 中国石油天然气股份有限公司 | Oil well casing fixes device |
-
2019
- 2019-10-11 CN CN201910965016.9A patent/CN110847841A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6971449B1 (en) * | 1999-05-04 | 2005-12-06 | Weatherford/Lamb, Inc. | Borehole conduit cutting apparatus and process |
| CN2660094Y (en) * | 2003-11-21 | 2004-12-01 | 中国石油天然气股份有限公司 | Sliding coupler of wellhead casing |
| CN102606086A (en) * | 2012-03-27 | 2012-07-25 | 无锡西姆莱斯石油专用管制造有限公司 | Connecting joint with special knuckle threads for oil casing |
| CN203463035U (en) * | 2013-07-05 | 2014-03-05 | 宝鸡石油钢管有限责任公司 | Screwed joint for petroleum casing pipe |
| CN105888598A (en) * | 2016-06-24 | 2016-08-24 | 中国石油化工股份有限公司华东油气分公司采油气工程服务中心 | Wellhead sealing device |
| CN208718593U (en) * | 2018-07-24 | 2019-04-09 | 中国石油天然气股份有限公司 | Oil well casing fixes device |
Non-Patent Citations (1)
| Title |
|---|
| 吴福源 等: "一种低成本取换套修井技术", 《内蒙古石油化工》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200228 |
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| RJ01 | Rejection of invention patent application after publication |