CN216406730U - Novel all-metal drag reduction short circuit - Google Patents
Novel all-metal drag reduction short circuit Download PDFInfo
- Publication number
- CN216406730U CN216406730U CN202121176036.7U CN202121176036U CN216406730U CN 216406730 U CN216406730 U CN 216406730U CN 202121176036 U CN202121176036 U CN 202121176036U CN 216406730 U CN216406730 U CN 216406730U
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- wear
- joint
- ring
- joint body
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- 239000002184 metal Substances 0.000 title claims abstract description 14
- 230000009467 reduction Effects 0.000 title claims description 11
- 239000000956 alloy Substances 0.000 claims description 17
- 229910045601 alloy Inorganic materials 0.000 claims description 17
- 238000005553 drilling Methods 0.000 abstract description 22
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a novel all-metal anti-drag short joint which comprises a joint body, an upper wear-resisting ring, a wear-resisting sleeve, a lower wear-resisting ring and a lower joint, wherein the bottom of the joint body is in threaded connection with the lower joint, the wear-resisting sleeve is in threaded connection with the joint body, the lower wear-resisting ring is arranged at the joint of the joint body and the lower joint, the joint body is sleeved with the wear-resisting sleeve at the section between the upper wear-resisting ring and the lower wear-resisting ring, through inner holes are formed in the joint body and the lower joint, and reinforcing structures are arranged on the joint body, the upper wear-resisting ring, the wear-resisting sleeve and the lower wear-resisting ring. The utility model effectively solves the problems of slow drilling footage and friction between the drill rod and the well wall caused by torque increase due to the friction between the drill rod and the well wall in a highly deviated well and a horizontal well open hole well, improves the drilling efficiency, protects the outer surface of the drilling tool and prolongs the service life.
Description
Technical Field
The utility model relates to the field of petroleum drilling, in particular to a novel all-metal anti-drag short joint.
Background
Along with the increase of the exploration and development strength of petroleum and natural gas, deep oil gas resources are gradually developed and utilized, and wells with complex working conditions such as deep wells, ultra-deep wells and the like are more and more, particularly highly deviated wells and horizontal wells are more and more. Although the drilling mode (drilling disk and motor) adopted at present is greatly improved in footage and efficiency compared with the original drilling mode (drilling by gravity), the friction between a drilling tool and a well wall in a highly-deviated well and a horizontal well is an unavoidable problem, so that the torque loss of a drilling tool is caused, the drilling tool cannot be completely converted into rotary cutting rock for a drill bit, the abrasion of a drill rod is increased, the drilling efficiency is reduced, and the drilling cost is increased. Aiming at the problem, at present, a more common mode is that an anti-abrasion joint (metal) is connected between drill rods in a casing section of a well which is fixed, the drill rods are prevented from rubbing with the casing when rotating, and no resistance reduction measure is carried out on an open hole section. The problem of wear of the drilling tool in the casing section is solved, but the wear resistance of the drilling tool in the open hole section in a highly deviated well and a horizontal well is not eliminated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of overcoming the technical defects and provides a novel all-metal anti-drag short circuit.
In order to solve the problems, the technical scheme of the utility model is as follows: the utility model provides a novel all-metal drag reduction short circuit, includes the joint body, goes up wear ring, wear-resisting cover, lower wear ring and lower clutch, connect body bottom threaded connection lower clutch, wear-resisting cover threaded connection connects on the joint body, lower wear ring installs and connects body and lower clutch junction, the joint body is equipped with wear-resisting cover in last wear ring and the section cover between the wear ring down, be equipped with the hole that link up in the joint body and the lower clutch, all be equipped with on the joint body, last wear ring, wear-resisting cover and the lower wear ring and strengthen the structure.
Furthermore, the joint body is provided with female threads at the top of the inner hole, and the outer circle of the joint body is provided with a first external thread and hard alloy close to the lower part.
Furthermore, the inner wall of the upper wear-resistant ring is provided with a first internal thread, and the end face of the small end of the inner diameter of the upper wear-resistant ring is provided with hard alloy.
Furthermore, a spiral groove is formed in the outer circle of the wear-resistant sleeve, a plurality of holes are formed in the wear-resistant sleeve rib, hard alloy teeth are embedded in the holes, and hard alloy is arranged on the inner surface of the wear-resistant sleeve.
Furthermore, one end of the lower wear-resisting ring is provided with a first axial groove, and the end face of the other end of the lower wear-resisting ring is provided with hard alloy.
Further, the top end of the lower joint is provided with a second axial groove, and the bottom end of the lower joint is provided with a second external thread.
Compared with the prior art, the utility model has the advantages that: the utility model effectively solves the problems of slow drilling footage and friction between the drill rod and the well wall caused by torque increase due to the friction between the drill rod and the well wall in a highly deviated well and a horizontal well open hole well, improves the drilling efficiency, protects the outer surface of the drilling tool and prolongs the service life.
Drawings
FIG. 1 is a block diagram of the present invention.
Fig. 2 is an external view of the fitting body.
Figure 3 is an external view of the upper wear ring.
Fig. 4 is an external view of the wear sleeve.
Fig. 5 is an outline view of the lower wear ring.
Fig. 6 is an external view of the lower joint.
As shown in the figure: 1. the connector comprises a connector body, 1.1 female threads, 1.2 external threads I, 2 upper wear-resistant rings, 2.1 internal threads I, 3 wear-resistant sleeves, 3.1 spiral grooves, 3.2 holes, 4 lower wear-resistant rings, 5 lower connectors, 5.1 external threads II, 6 inner holes, 7 and hard alloy.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 6, the novel all-metal drag reduction short joint comprises a joint body 1, an upper wear-resistant ring 2, a wear-resistant sleeve 3, a lower wear-resistant ring 4 and a lower joint 5. The joint body 1 is provided with female threads 1.1 for connecting other drill rod threads, an inner hole 6 for circulating drilling fluid is reserved in the middle, and an external thread 1.2 and hard alloy 7 are arranged at the position close to the lower part of the excircle; the inner part of the upper wear-resisting ring 2 is provided with a thread with an internal thread I2.1 connected with an external thread I1.2 on the excircle of the joint body 1, and the end surface of the small end of the internal diameter is provided with a hard alloy 7; the excircle of the wear-resistant sleeve 3 is provided with a spiral groove 3.1 which is mainly used for drilling fluid overflowing and reducing contact area, hard alloy teeth are embedded in the holes 3.2 on the ribs, and hard alloy 7 is arranged on the inner surface; one end of the lower wear-resisting ring 4 is provided with a first axial groove for preventing the lower wear-resisting ring from rotating together with the wear-resisting sleeve 3 after being spliced with the lower joint 5, and the end face of one end is provided with a hard alloy 7; the upper end of the lower joint 5 is provided with an axial groove II, the lower end of the lower joint is provided with an external thread II 5.1 for connecting a drill rod, and an inner hole 6 for circulating drilling fluid is reserved in the middle of the lower joint.
In the specific use, according to different well structures, the assembling positions and the number of the tool are different, the upper part and the lower part of the tool are provided with a connecting female thread 1.1 and an external thread two 5.1 which can be connected with a drill rod with corresponding threads, the tool is regarded as a short drill rod to be used, the tool is connected above a drilling tool and is put into a well bottom together with other tools for working, the wear-resistant sleeve 3 is arranged outside the joint body 1, the outer surface and the inner surface of the matching position of the joint body 1 and the wear-resistant sleeve 3 are specially processed with wear-resistant hard alloy 7, the friction resistance is very small, and meanwhile, the tool can flexibly rotate along the axis of the joint body 1. Therefore, the friction mode of the outer diameter part of the drill rod and the rock stratum is changed from the original sliding friction to the rolling friction. Since the drill tool is not only rotated along the center of the borehole but also advanced in the longitudinal (depth) direction during operation in the well, cemented carbide 7 is also disposed on the upper and lower end surfaces of the wear sleeve 3. The tool failure caused by mechanical abrasion caused by rotation is prevented.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (6)
1. The utility model provides a novel all-metal drag reduction short circuit which characterized in that: including the joint body (1), go up wear ring (2), wear-resisting cover (3), wear ring (4) and lower clutch (5) down, connect body (1) bottom threaded connection lower clutch (5), wear-resisting cover (3) threaded connection is on connecting the body (1), wear ring (4) are installed and are being connected the department at joint body (1) and lower clutch (5) down, connect body (1) between last wear ring (2) and lower wear ring (4) section cover establish wear ring (3), be equipped with hole (6) that link up in the joint body (1) and lower clutch (5), all be equipped with on the joint body (1), go up wear ring (2), wear ring (3) and lower wear ring (4) and strengthen the structure.
2. The novel all-metal drag reduction short circuit of claim 1, which is characterized in that: the joint body (1) is provided with female threads (1.1) at the top of the inner hole (6), and the outer circle of the joint body (1) is provided with an external thread I (1.2) and hard alloy (7) by the lower part.
3. The novel all-metal drag reduction short circuit of claim 1, which is characterized in that: the inner wall of the upper wear-resistant ring (2) is provided with a first internal thread (2.1), and the end face of the small end of the inner diameter of the upper wear-resistant ring (2) is provided with a hard alloy (7).
4. The novel all-metal drag reduction short circuit of claim 1, which is characterized in that: the outer circle of the wear-resistant sleeve (3) is provided with a spiral groove (3.1), a plurality of holes (3.2) are formed in ribs of the wear-resistant sleeve (3), hard alloy teeth are embedded in the holes (3.2), and the inner surface of the wear-resistant sleeve (3) is provided with hard alloy (7).
5. The novel all-metal drag reduction short circuit of claim 1, which is characterized in that: one end of the lower wear-resistant ring (4) is provided with a first axial groove, and the end face of the other end of the lower wear-resistant ring is provided with hard alloy (7).
6. The novel all-metal drag reduction short circuit of claim 1, which is characterized in that: and the top end of the lower joint (5) is provided with a second axial groove, and the bottom end of the lower joint is provided with a second external thread (5.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121176036.7U CN216406730U (en) | 2021-05-28 | 2021-05-28 | Novel all-metal drag reduction short circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121176036.7U CN216406730U (en) | 2021-05-28 | 2021-05-28 | Novel all-metal drag reduction short circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216406730U true CN216406730U (en) | 2022-04-29 |
Family
ID=81280599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121176036.7U Expired - Fee Related CN216406730U (en) | 2021-05-28 | 2021-05-28 | Novel all-metal drag reduction short circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216406730U (en) |
-
2021
- 2021-05-28 CN CN202121176036.7U patent/CN216406730U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220429 |