CN210239615U

CN210239615U - Oil pipe centralizer for downhole operation

Info

Publication number: CN210239615U
Application number: CN201920915540.0U
Authority: CN
Inventors: Hongbo Li; 李洪波; Quanzhong Xue; 薛全忠; Shixia Lu; 鲁世霞; sichao Zhang; 张思超; Zhijun Zhang; 张志军; Yongdong Qiu; 邱永东; Libao Ren; 任利宝; Hanping Fu; 付汉平; Zhongyang Jia; 贾忠阳; Qinglin Liu; 刘庆林
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-04-03
Anticipated expiration: 2029-06-18

Abstract

An oil pipe centralizer for borehole operation, including being responsible for, change the cover, the ball, the cardboard, the holding ring, the screw rod, the nut, be responsible for has the person in charge hole, it has a plurality of ball grooves to be responsible for the axle side, the ball inboard suits with the ball groove, the ball groove is connected to the ball inboard, the ball inboard is at the ball inslot internal rotation, it has the commentaries on classics cover hole to change the cover, be responsible for and pass and change the cover hole, the ball outside is connected and is changeed the cover hole, the ball outside slides at changeing the cover hole, the holding ring outside suits with changeing the cover hole, the holding ring inserts changeing the cover hole, the holding ring has the holding ring outer edge, it has the holding ring outer edge groove to change the cover, the holding ring outer edge suits with the holding ring outer edge groove of holding ring, the holding.

Description

Oil pipe centralizer for downhole operation

Technical Field

The utility model relates to an oil field especially relates to an oil pipe centralizer for borehole operation.

Background

When the oil field is operated under the well, a centralizer is needed to prevent the oil pipe and the casing wall from being abraded due to the creeping of the oil pipe in the oil pumping working process, however, the existing centralizer is single in structure, and a rotating sleeve is easy to move.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is not enough to the above-mentioned that prior art exists, provide a stable in structure's an oil pipe centralizer for borehole operation.

The utility model aims at realizing through the following technical scheme:

the utility model provides an oil pipe centralizer for borehole operation, including being responsible for, change the cover, the ball, the cardboard, the holding ring, the screw rod, the nut, be responsible for has the person in charge hole, it has a plurality of ball grooves to be responsible for the axle side, the ball inboard suits with the ball groove, the ball groove is connected to the ball inboard, the ball inboard is at ball inslot internal rotation, it has the commentaries on classics cover hole to change the cover, be responsible for and pass the commentaries on classics cover hole, the ball outside is changeed the cover hole in changeing the cover, the ball outside slides in changeing the cover hole, the holding ring outside suits with changeing the cover hole, the holding ring inserts changeing the cover hole, the holding ring has the holding ring and follows outward, the commentaries on classics cover has the holding ring and follows the groove outward, the holding ring is followed outward and is.

The holding ring lower surface is connected with the ball, and the bilateral symmetry sets up about the ball at the holding ring, and the person in charge has the cardboard groove, and the cardboard inboard suits with the cardboard groove, and cardboard inboard connection cardboard groove, cardboard lower surface connection holding ring outer edge, cardboard are responsible for left and right sides symmetry and set up, and the holding ring has the holding ring hole.

The cardboard has the cardboard curb plate, and the cardboard curb plate sets up at cardboard bilateral symmetry, and the cardboard curb plate has the screw rod hole, and the screw rod suits with the screw rod hole, and the screw rod passes the screw rod hole that the symmetry set up, and the nut is connected at the screw rod both ends, and the cardboard curb plate is connected to the nut side.

Has the advantages that:

the inner sides of the balls are connected with ball grooves, the outer sides of the balls are connected with inner holes of the rotating sleeves, the rotating sleeves are enabled to rotate relative to the main pipe through the balls, the clamping plates are firmly connected with the main pipe through a plurality of screws, the balls are connected with the lower surfaces of the clamping plates, the balls are positioned through the positioning rings which are symmetrical up and down, the rotating sleeves are prevented from moving up and down relative to the main pipe, the outer sides of the rotating sleeves are connected with the side surface of a well wall, the well wall is prevented from being directly contacted with the outer wall of the main pipe to cause friction and abrasion, the clamping plates are connected with the clamping plate grooves, the embedded connection mode enables the force borne by the clamping plates to be transmitted to the main pipe to the maximum extent, the shearing resistance force of the clamping plates is increased, the screw rods penetrate through screw holes which are symmetrically arranged, nuts are connected with the two ends of, the oil pipe is righted by the main pipe end extending into the oil pipe.

Drawings

Fig. 1 is a schematic structural view of an oil pipe centralizer for downhole operation.

Fig. 2 is a top view and a cross-sectional view of the main tube and the clamping plate of the present invention.

Detailed Description

The invention is explained in more detail below with reference to the figures and examples:

an oil pipe centralizer for underground operation comprises a main pipe 01, a rotating sleeve 02, balls 04, a clamping plate 07, a positioning ring 09, a screw 15 and a nut 17, be responsible for 01 and have the person in charge hole 13, be responsible for 01 axle side and have a plurality of ball grooves 05, ball 04 inboard suits with ball groove 05, ball groove 05 is connected to ball 04 inboard, ball 04 inboard is at the internal rotation of ball groove 05, it has commentaries on classics cover hole 03 to change cover 02, be responsible for 01 and pass and change cover hole 03, change cover hole 03 is connected in the ball 04 outside, the ball 04 outside slides in changeing cover hole 03, the holding ring 09 outside suits with changeing cover hole 03, holding ring 09 inserts and changes cover hole 03, holding ring 09 has holding ring outer edge 10, it has holding ring outer edge groove 11 to change cover 02, the holding ring outer edge 10 suits along groove 11 with the holding ring outer edge, the holding ring outer edge 10 connects holding ring outer edge groove 11, the holding ring outer edge 10 connects through a plurality of screws 12 and changes the cover 02.

The lower surface of the positioning ring 09 is connected with the ball 04, the positioning ring 09 is symmetrically arranged on the upper side and the lower side of the ball 04, the main pipe 01 is provided with a clamping plate groove 08, the inner side of a clamping plate 07 is matched with the clamping plate groove 08, the inner side of the clamping plate 07 is connected with the clamping plate groove 08, the lower surface of the clamping plate 07 is connected with the outer edge 10 of the positioning ring, the clamping plate 07 is symmetrically arranged on the left side and the right side of the main pipe 01.

The clamping plate 07 is provided with clamping plate side plates 14, the clamping plate side plates 14 are symmetrically arranged on two sides of the clamping plate 07, the clamping plate side plates 14 are provided with screw holes 16, screws 15 are matched with the screw holes 16, the screws 15 penetrate through the screw holes 16 which are symmetrically arranged, two ends of each screw 15 are connected with nuts 17, and the side faces of the nuts 17 are connected with the clamping plate side plates 14.

The inner side of a ball 04 is connected with a ball groove 05, the outer side of the ball 04 is connected with a rotating sleeve inner hole 03, the rotating sleeve 02 is enabled to rotate relative to a main pipe 01 through the ball 04, a clamping plate 07 is firmly connected with the main pipe 01 through a plurality of screws 12, the ball 04 is connected with the lower surface of the clamping plate 07, the ball 04 is positioned through positioning rings 09 which are symmetrical up and down, the rotating sleeve 02 is prevented from moving up and down relative to the main pipe 01, the outer side surface of the rotating sleeve 02 is connected with the side surface of a well wall, the well wall is prevented from being directly contacted with the outer wall of the main pipe 01 to cause friction and abrasion, the clamping plate 07 is connected with a clamping plate groove 08, the embedded connection mode enables the force borne by the clamping plate 07 to be transmitted to the main pipe 01 to the maximum extent, the shearing resistance force of the clamping plate 07 is increased, a screw 15 penetrates through screw holes 16 which are symmetrically arranged, two ends of, the outer side of the main pipe 01 is connected with an oil pipe through threads, the lower surface of the oil pipe is connected with the clamping plate 07, and the main pipe 01 end extending into the oil pipe is used for righting the oil pipe.

Claims

1. An oil pipe centralizer for downhole operation is characterized by comprising a main pipe, a rotating sleeve, balls, a clamping plate, a positioning ring, a screw rod and a nut, wherein the main pipe is provided with a main pipe inner hole, the main pipe shaft side is provided with a plurality of ball grooves, the inner sides of the balls are matched with the ball grooves, the inner sides of the balls are connected with the ball grooves, the inner sides of the balls rotate in the ball grooves, the rotating sleeve is provided with a rotating sleeve inner hole, the main pipe penetrates through the rotating sleeve inner hole, the outer sides of the balls are connected with the rotating sleeve inner hole, the outer sides of the balls slide in the rotating sleeve inner hole, the outer sides of the positioning ring are matched with the rotating sleeve inner hole, the positioning ring is inserted into the rotating sleeve inner hole, the positioning ring is provided with a positioning ring outer edge, the rotating sleeve is provided with a positioning ring outer edge groove, the positioning.

2. The oil pipe centralizer for downhole operation according to claim 1, wherein the lower surface of the positioning ring is connected with the balls, the positioning ring is symmetrically arranged on the upper side and the lower side of the balls, the main pipe is provided with a clamping plate groove, the inner side of the clamping plate is matched with the clamping plate groove, the inner side of the clamping plate is connected with the clamping plate groove, the lower surface of the clamping plate is connected with the outer edge of the positioning ring, the clamping plate is symmetrically arranged on the left side and the right side of the main pipe, and the.

3. The tubing centralizer for downhole operation according to claim 2, wherein the clamping plate has clamping plate side plates symmetrically arranged at both sides of the clamping plate, the clamping plate side plates have screw holes, screws are matched with the screw holes, the screws penetrate through the symmetrically arranged screw holes, nuts are connected at both ends of the screws, and the side faces of the nuts are connected with the clamping plate side plates.