CN212479106U - Short-circuit workpiece for petroleum well completion - Google Patents
Short-circuit workpiece for petroleum well completion Download PDFInfo
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- CN212479106U CN212479106U CN202021135381.1U CN202021135381U CN212479106U CN 212479106 U CN212479106 U CN 212479106U CN 202021135381 U CN202021135381 U CN 202021135381U CN 212479106 U CN212479106 U CN 212479106U
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- mandrel
- lower mandrel
- steel wire
- sleeve
- wall
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Abstract
The utility model belongs to the technical field of oil well completion work piece technique and specifically relates to a short circuit work piece is used in oil well completion, including top mandrel and lower mandrel, top mandrel bottom and lower mandrel top all are provided with flange, and top mandrel and lower mandrel pass through flange connection and rotate the connection work piece, and top mandrel and lower mandrel outer wall all overlap and are equipped with the stainless steel wire braided sleeve, and stainless steel wire braided sleeve surface is provided with the wear-resisting cover of reducing the button. The utility model discloses in, through setting up the top shaft and lower mandrel, wherein, the top shaft rotates through rotating with lower mandrel and connects the work piece and connect, the moment of torsion that the rotatory drilling in-process of reducible drilling string produced has guaranteed going on smoothly of drilling construction, through set up nonrust steel wire braided sleeve and subtract the wear-resisting cover of button on top shaft and lower mandrel surface, can shift the friction of drilling rod and sleeve pipe inner wall or the wall of a well down except that can effectively protect top shaft and lower mandrel simultaneously, suitable using widely.
Description
Technical Field
The utility model relates to an oil well completion work piece technical field specifically is a short circuit work piece for oil well completion.
Background
In a directional well, a highly deviated well, a horizontal well and a highly displaced well, because the well deviation is larger, the deviated well section is long, a drilling tool is tightly attached to a lower well wall for a long time under the action of gravity, no matter in the interior of a casing or in an open hole well section, because a drilling string moves (slides or rotates) relative to the lower well wall, under the action of positive pressure and friction coefficient, the friction between the drilling tool and the lower well wall or the casing causes the abrasion of the inner wall part of a drill rod coupling or an upper casing, and because the drilling bit can bring larger torque to the drilling rod in the construction process, the large torque cannot be eliminated in time, and therefore, the short circuit workpiece for petroleum well completion is provided aiming at the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a short circuit work piece is used in oil well completion, through setting up the top shaft and lower mandrel, wherein, the top shaft is connected the work piece through rotating with lower mandrel and is rotated and connect, the moment of torsion that the rotatory in-process that drills in reducible drilling string produced, the smooth going on of well drilling construction has been guaranteed, through set up nonrust steel wire braided sleeve and subtract the wear-resisting cover of button on top shaft and lower mandrel surface, can shift the friction of drilling rod and inside pipe wall or the wall of a well down except can effectively protecting top shaft and lower mandrel simultaneously, in order to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the short-circuit workpiece for petroleum well completion comprises an upper mandrel and a lower mandrel, wherein connecting flanges are arranged at the bottom of the upper mandrel and at the top of the lower mandrel, the upper mandrel and the lower mandrel are connected through the connecting flanges and rotatably connected with the workpiece, stainless steel wire braided sleeves are sleeved on the outer walls of the upper mandrel and the lower mandrel, and button-reducing wear-resistant sleeves are arranged on the surfaces of the stainless steel wire braided sleeves.
Preferably, the stainless steel wire braided sleeve and the button-reducing wear-resistant sleeve are overlapped and then two sections of the stainless steel wire braided sleeve and the button-reducing wear-resistant sleeve are fixedly arranged on the upper mandrel and the lower mandrel through the fixing sleeve.
Preferably, the inner wall of the top of the upper mandrel and the inner wall of the bottom of the lower mandrel are both provided with connecting threads.
Preferably, the fixed sleeve is a limiting hoop, and the fixed sleeve fixes the corresponding upper mandrel and the lower mandrel through fixing bolts.
Compared with the prior art, the beneficial effects of the utility model are that: through setting up upper mandrel and lower mandrel, wherein, upper mandrel and lower mandrel rotate through rotating to be connected the work piece and rotate and connect, the moment of torsion that reducible drilling string rotary drilling in-process produced has guaranteed going on smoothly of drilling construction, through set up nonrust steel wire braided sleeve and subtract wear-resisting cover of button on upper mandrel and lower mandrel surface, except can effectively protecting upper mandrel and lower mandrel, can shift the friction of drilling rod and sleeve pipe inner wall or lower well wall simultaneously, suitable using widely.
Drawings
Fig. 1 is the utility model discloses a short circuit work piece overall structure schematic diagram for oil well completion.
In the figure: 1. an upper mandrel; 2. a lower mandrel; 3. rotationally connecting the workpieces; 4. a connecting flange; 5. stainless steel wire braided sleeves; 6. a wear-resistant sleeve of the reducing button; 7. and (4) fixing sleeves.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
the utility model provides a short circuit work piece for oil well completion, includes that 1 and the lower mandrel 2 of upper mandrel, 1 bottom of upper mandrel and 2 tops of lower mandrel all are provided with flange 4, and upper mandrel 1 and lower mandrel 2 are connected through flange 4 and are rotated connection work piece 3, and upper mandrel 1 and 2 outer walls of lower mandrel all are equipped with stainless steel wire braided sleeve 5, and stainless steel wire braided sleeve 5 surface is provided with subtracts wear-resisting cover of button 6.
Wherein, two sections of the stainless steel wire braided sleeve 5 and the button-reducing wear-resistant sleeve 6 are fixedly arranged on the upper mandrel 1 and the lower mandrel 2 through the fixed sleeve 7 after being superposed.
Wherein, the inner wall of the top of the upper mandrel 1 and the inner wall of the bottom of the lower mandrel 2 are both provided with connecting threads.
Wherein, fixed cover 7 is spacing clamp, and fixed cover 7 passes through fixing bolt fixed corresponding upper mandrel 1 and lower mandrel 2.
The working principle is as follows: through setting up upper mandrel and lower mandrel, wherein, upper mandrel and lower mandrel rotate through rotating to be connected the work piece and rotate and connect, the moment of torsion that reducible drilling string rotary drilling in-process produced has guaranteed going on smoothly of drilling construction, through set up nonrust steel wire braided sleeve and subtract wear-resisting cover of button on upper mandrel and lower mandrel surface, except can effectively protecting upper mandrel and lower mandrel, can shift the friction of drilling rod and sleeve pipe inner wall or lower well wall simultaneously, suitable using widely.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A pup joint workpiece for oil well completion, comprising an upper mandrel (1) and a lower mandrel (2), characterized in that: the stainless steel wire weaving machine is characterized in that connecting flanges (4) are arranged at the bottom of the upper mandrel (1) and the top of the lower mandrel (2), the upper mandrel (1) and the lower mandrel (2) are connected through the connecting flanges (4) to be rotatably connected with a workpiece (3), stainless steel wire weaving sleeves (5) are sleeved on the outer walls of the upper mandrel (1) and the lower mandrel (2), and the surface of each stainless steel wire weaving sleeve (5) is provided with a button-reducing wear-resistant sleeve (6).
2. The pup joint workpiece for oil completion according to claim 1, wherein: two sections of the stainless steel wire braided sleeve (5) and the reduction button wear-resistant sleeve (6) are fixedly arranged on the upper mandrel (1) and the lower mandrel (2) through the fixing sleeve (7) after being overlapped.
3. The pup joint workpiece for oil completion according to claim 1, wherein: and the inner wall of the top of the upper mandrel (1) and the inner wall of the bottom of the lower mandrel (2) are both provided with connecting threads.
4. The pup joint workpiece for oil completion according to claim 2, wherein: the fixed sleeve (7) is a limiting hoop, and the fixed sleeve (7) fixes the corresponding upper mandrel (1) and the lower mandrel (2) through fixing bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021135381.1U CN212479106U (en) | 2020-06-18 | 2020-06-18 | Short-circuit workpiece for petroleum well completion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021135381.1U CN212479106U (en) | 2020-06-18 | 2020-06-18 | Short-circuit workpiece for petroleum well completion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212479106U true CN212479106U (en) | 2021-02-05 |
Family
ID=74412891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021135381.1U Active CN212479106U (en) | 2020-06-18 | 2020-06-18 | Short-circuit workpiece for petroleum well completion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212479106U (en) |
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2020
- 2020-06-18 CN CN202021135381.1U patent/CN212479106U/en active Active
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