CN211692318U

CN211692318U - Smooth well wall tool for well drilling

Info

Publication number: CN211692318U
Application number: CN201921415404.1U
Authority: CN
Inventors: 崔青; 崔希君; 于丽萍; 初新杰; 尹慧敏; 魏羲; 任红伟; 王天英; 毕巍
Original assignee: Sinopec Oilfield Service Corp; Sinopec Shengli Petroleum Engineering Corp; Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp
Current assignee: Sinopec Oilfield Service Corp; Sinopec Shengli Petroleum Engineering Corp; Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-10-16
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses a level and smooth wall of a well instrument is used in well drilling mainly connects external screw thread, wear-resisting material, carbide ball, drilling fluid tye, main part and drilling rod by the drilling rod and connects the internal thread and constitute. The main body is cylindrical, and the outer part is welded with wear-resistant materials. And a plurality of drilling fluid flowing grooves are symmetrically arranged on the wear-resistant material along the circumferential direction of the main body. Spherical tooth holes are uniformly formed in the outer portion of the wear-resistant material, and hard alloy balls are respectively embedded in the spherical tooth holes. The drill rod connecting external thread and the drill rod connecting internal thread of the tool are connected with other drilling tools to form a drilling tool assembly. The drill rod is driven into the well along with the drill rod, and well wall attachments can be scraped in the well drilling and tripping process, so that the well wall finishing effect is achieved. The irregularity of the well track is avoided, and the drilling quality and the operation efficiency are improved.

Description

Smooth well wall tool for well drilling

Technical Field

The utility model relates to an oil and gas well drilling exploitation field, concretely relates to smooth wall of a well instrument is used in well drilling.

Background

During the drilling process, if a stratum which is easy to hydrate, expand and disperse is encountered, the borehole is easy to shrink, and the drill bit can be blocked. In a well deep structure with many broken stratums, accidents such as blockage, blockage and scratching can occur more possibly. Therefore, dredging the wellbore and smoothing the wall of the wellbore are important issues in oil and gas production drilling operations. In the current oil and gas exploitation process, if the drill bit is stuck, or the problem that the drill bit is blocked due to the collapse of mudstone and the like occurs, most of the existing technical solutions are sidetracking or wellhead additionally operating. Therefore, manpower and material resources are wasted, and well position deviation is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the problem that exists now, provide one kind and can follow the drilling rod and go into in the well smoothly, can scrape the wall of a well attachment again at the well drilling tripping in-process again, play the smooth wall of a well instrument for well drilling of the well wall repairing effect.

The utility model provides a smooth wall of a well instrument is used in well drilling, including the main part, it has wear-resisting material, carbide ball to distribute at the peripheral of main part.

The above scheme further comprises:

and a drilling fluid flume is axially arranged at the peripheral edge of the main body.

The wear-resistant materials are in an annular structure, and a plurality of channels of wear-resistant materials are distributed on the main body at intervals along the axial direction; the hard alloy balls are distributed at intervals along the peripheral edge of the wear-resistant material along the circumferential direction; the drilling fluid flowing grooves are distributed at intervals on the outer periphery of the wear-resistant material along the axial direction.

Or the wear-resistant material takes the main body axis as an axis and is in a spiral annular structure; the hard alloy balls are distributed at intervals along the periphery of the wear-resistant material; the drilling fluid flowing grooves are distributed at intervals on the outer periphery of the wear-resistant material along the axial direction.

The hard alloy balls are fixed outside the wear-resistant material in an embedding mode and are uniformly arranged in ball tooth holes.

And the two ends of the main body are respectively provided with a drill rod connecting external thread and a drill rod connecting internal thread.

The hard alloy ball is in a pointed cone shape or a pointed round shape.

The utility model has the advantages that: the well wall scraping device can not only be smoothly put into a well along with a drill rod, but also can scrape well wall attachments in the well drilling and tripping process, and plays a role in well wall trimming. The utility model discloses simple structure, the installation and the use of being convenient for have very strong geological adaptability in the field application.

Drawings

Fig. 1 is the structural schematic diagram of the smooth well wall tool for well drilling of the utility model.

In the figure: 1-drill rod connection external thread, 2-wear-resistant material, 3-hard alloy ball, 4-drilling fluid flowing groove, 5-main body and 6-drill rod connection internal thread.

Detailed Description

The present invention will be described in further detail with reference to fig. 1 and the following detailed description.

Example 1

A smooth well wall tool for well drilling comprises a main body 5, wherein wear-resistant materials 2 and hard alloy balls 3 are distributed on the outer periphery of the main body 5.

Example 2

In addition to embodiment 1, a drilling fluid flowing groove 4 is axially provided in the outer peripheral edge of the main body 5.

Example 3

On the basis of the embodiment 2, the wear-resistant material 2 is in an annular structure, and a plurality of channels of wear-resistant material 2 are distributed on the main body 5 at intervals along the axial direction; the hard alloy balls 3 are distributed at intervals along the peripheral edge of the wear-resistant material 2 along the circumferential direction; the drilling fluid flowing grooves 4 are distributed at intervals along the outer periphery of the wear-resistant material 2 along the axial direction.

Example 4

Or the wear-resistant material 2 takes the axis of the main body 5 as an axis and is in a spiral annular structure; the hard alloy balls 3 are distributed at intervals along the periphery of the wear-resistant material 2; the drilling fluid flowing grooves 4 are distributed at intervals along the outer periphery of the wear-resistant material 2 along the axial direction.

In the above embodiments 1 to 4, the cemented carbide balls 3 are fixed outside the wear-resistant material 2 by means of inlaying and uniformly drilled with spherical tooth holes.

And the two ends of the main body 5 are respectively provided with a drill rod connecting external thread 1 and a drill rod connecting internal thread 6.

The hard alloy ball 3 is in a pointed cone shape or a pointed round shape.

Exemplary embodiment 5

Referring to the attached figure 1, the smooth well wall tool for well drilling mainly comprises a main body 5, drill rod connecting external threads 1 arranged on the main body 5, wear-resistant materials 2, hard alloy balls 3, a drilling fluid flowing groove 4 and drill rod connecting internal threads 6.

The main body 5 is a hollow pipe structure, and the wear-resistant material 2 is welded outside the main body. Preferably, the wear-resistant material 2 is arranged spirally about the axis of the body 5. A plurality of drilling fluid flowing grooves 4 are symmetrically arranged on the wear-resistant material 2 along the circumferential direction of the main body 5. Spherical tooth holes are uniformly formed in the outer portion of the wear-resistant material 2, and hard alloy balls 3 are respectively embedded in the spherical tooth holes. The inlaid hard alloy ball 3 is in a pointed cone shape or a pointed round shape.

The smooth well wall tool for well drilling is connected with other drilling tools through the drill rod connecting external threads 1 and the drill rod connecting internal threads 6 to form a drilling tool combination. The well drilling smooth well wall tool is put into the well along with the drill rod, and well wall attachments can be scraped in the well drilling and tripping process to play a well wall finishing role. The irregularity of the well track is avoided, and the drilling quality and the operation efficiency are improved.

Claims

1. A smooth wall tool for drilling a well, comprising a body (5), characterized in that: the periphery of the main body (5) is distributed with wear-resistant materials (2) and hard alloy balls (3); a drilling fluid flume (4) is axially arranged at the peripheral edge of the main body (5); the hard alloy balls (3) are distributed at intervals along the outer periphery of the wear-resistant material (2).

2. The smooth wall tool for drilling well as claimed in claim 1 wherein: the wear-resistant materials (2) are in an annular structure, and a plurality of channels of wear-resistant materials (2) are distributed on the main body (5) at intervals along the axial direction; the hard alloy balls (3) are distributed at intervals along the circumferential direction on the periphery of the wear-resistant material (2); the drilling fluid flowing grooves (4) are distributed on the outer periphery of the wear-resistant material (2) at intervals along the axial direction.

3. The smooth wall tool for drilling well as claimed in claim 1 wherein: the wear-resistant material (2) takes the axis of the main body (5) as an axis and is in a spiral annular structure; the hard alloy balls (3) are distributed at intervals along the periphery of the wear-resistant material (2); the drilling fluid flowing grooves (4) are distributed on the outer periphery of the wear-resistant material (2) at intervals along the axial direction.

4. A smooth wall tool for drilling wells as claimed in claim 2 or claim 3 wherein: the hard alloy balls (3) are fixed outside the wear-resistant material (2) in an embedding mode and are uniformly arranged in ball tooth holes.

5. The smooth wall tool for drilling well as claimed in claim 4 wherein: and the two ends of the main body (5) are also respectively provided with a drill rod connecting external thread (1) and a drill rod connecting internal thread (6).

6. The smooth wall tool for drilling well as claimed in claim 4 wherein: the hard alloy ball (3) is in a pointed cone shape or a pointed round shape.