CN209817963U

CN209817963U - Centralizing assembly of underbalanced drilling fluid director

Info

Publication number: CN209817963U
Application number: CN201920291222.1U
Authority: CN
Inventors: 曹阳; 欣志娟; 唐明幸
Original assignee: JIANGSU WEIDONG MACHINERY Co Ltd
Current assignee: JIANGSU WEIDONG MACHINERY Co Ltd
Priority date: 2019-03-08
Filing date: 2019-03-08
Publication date: 2019-12-20
Anticipated expiration: 2029-03-08

Abstract

The utility model discloses a righting assembly of underbalanced drilling divertor, dabber (3) are adorned in bearing shell (2) through two roller bearing dishes (4), and space ring (1) are pressed on roller bearing (4), and end flange (6) are screwed in dabber (3) lower part through the screw thread, and rubber core (7) are connected on end flange (6) through bolt (5), wholly constitute the righting assembly of underbalanced drilling divertor. The utility model has simple structure and firm and reliable connection; the roller bearing balances the stress in the horizontal direction, the rubber core balances the stress in the vertical direction, the centralizing capacity of the fluid director is integrally improved, the sealing element is effectively protected, and the reliability of the underbalanced drilling is improved.

Description

Centralizing assembly of underbalanced drilling fluid director

Technical Field

The utility model relates to a divertor that uses during underbalanced drilling, concretely relates to assembly of rightting of underbalanced drilling divertor.

Background

At present, under-balanced drilling technology has developed and matured, and the effects of finding and protecting hydrocarbon reservoirs, improving the drilling speed and the like are also recognized. With the rapid development of the petroleum industry, the field of petroleum drilling has taken an underbalanced drilling technology as a preferred technology. Meanwhile, the country strongly pushes environmental remediation, and higher requirements are put forward on production equipment in the petroleum industry.

A centering assembly of the fluid director for the underbalanced drilling is an important component of the fluid director, and the centering assembly solves the problems of eccentricity and serious abrasion of the fluid director caused by the misalignment of a well mouth in the underbalanced drilling process.

Disclosure of Invention

The utility model aims to provide a: the centralizing assembly of the fluid director for the underbalanced drilling is provided, the problem that the fluid director is seriously abraded in an underbalanced drilling process is solved, the structure is simple, the assembly is safe and reliable, and the working efficiency of the underbalanced drilling is improved.

The technical solution of the utility model is that: the centralizing assembly of the underbalanced drilling fluid director comprises a space ring, a bearing shell, a mandrel, a roller bearing, a bolt, a bottom flange and a rubber core; the mandrel is arranged in the bearing shell through two roller bearings, the space ring is pressed on the roller bearings, the bottom flange is screwed on the lower part of the mandrel through threads, and the rubber core is connected on the bottom flange through bolts, so that the centralizing assembly of the underbalanced drilling fluid director is integrally formed.

The utility model has the advantages that: the centralizing assembly of the underbalanced drilling fluid director has a simple structure and is firmly and reliably connected; the roller bearing balances the stress in the horizontal direction, the rubber core balances the stress in the vertical direction, the centralizing capacity of the fluid director is integrally improved, the sealing element is effectively protected, and the reliability of the underbalanced drilling is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1 space ring, 2 bearing shells, 3 mandrels, 4 roller bearings, 5 bolts, 6 bottom flanges and 7 rubber cores.

Detailed Description

The technical scheme of the utility model is further explained in the following by combining the attached drawings.

As shown in fig. 1, the centralizing assembly of the underbalanced drilling fluid director comprises a space ring (1), a bearing shell (2), a mandrel (3), a roller bearing (4), a bolt (5), a bottom flange (6) and a rubber core (7); the core shaft (3) is arranged in the bearing shell (2) through two roller bearings (4), the space ring (1) is pressed on the roller bearings (4), the bottom flange (6) is screwed on the lower part of the core shaft (3) through threads, the rubber core (7) is connected to the bottom flange (6) through a bolt (5), and the whole body forms a centralizing assembly of the underbalanced drilling fluid director.

Claims

1. A centralizing assembly of an underbalanced drilling fluid director is characterized in that: the device comprises a space ring (1), a bearing shell (2), a mandrel (3), a roller bearing (4), a bolt (5), a bottom flange (6) and a rubber core (7); the core shaft (3) is arranged in the bearing shell (2) through two roller bearings (4), the space ring (1) is pressed on the roller bearings (4), the bottom flange (6) is screwed on the lower part of the core shaft (3) through threads, the rubber core (7) is connected to the bottom flange (6) through a bolt (5), and the whole body forms a centralizing assembly of the underbalanced drilling fluid director.