Tubular pile centering device for slant well drilling rig

A technology of centering device and inclined vertical well, which is applied to drill pipe, drill pipe, casing, etc., can solve the problems of poor pipe string centering effect, low work efficiency, poor safety, etc., and achieve good pipe string alignment, Simple processing procedures and improved automation

Inactive Publication Date: 2013-12-18
CNPC BOHAI EQUIP MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the shortcomings of the existing inclined and vertical well drilling rigs, such as complex pipe string processing procedures, poor pipe string centering effect, low work efficiency, and poor safety.

Method used

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  • Tubular pile centering device for slant well drilling rig
  • Tubular pile centering device for slant well drilling rig
  • Tubular pile centering device for slant well drilling rig

Examples

Experimental program
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Effect test

Embodiment Construction

[0013] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 As shown, a pipe string centering device for an inclined vertical well drilling rig includes an auxiliary arm 1, a rear connecting rod 2, a front connecting rod 3 and a boom 7; both ends of the front connecting rod 3 and the rear connecting rod 2 pass through the rotating shaft Connected on the auxiliary arm 1 and the main arm 7, the mechanical limit device 4 is welded on the auxiliary arm 1, the screw seat 12 and the guide rail 14 on the distance adjustment device 8 are connected to the main arm 7 by bolts, the distance adjustment device 8 The support rod 20 is connected with the rear connecting rod 2 through the pin shaft, the hydraulic cylinder base 6 is welded on the boom 7, and the hydraulic cylinder 5 used in conjunction with the hydraulic cylinder base 6 is connected to the front connecting rod 3, and the hydraulic cylinder 5 stretches to realize the mechanism starting. Lifting dista...

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PUM

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Abstract

The invention relates to an oil-field slant well drilling rig, in particular to a tubular pile centering device for a slant well drilling rig. Two ends of a front connecting rod and a rear connecting rod of the device are connected to an auxiliary arm and a main arm through rotary shafts, a mechanical limit device is welded to the auxiliary arm, a screw seat and guide rail of a distance regulating device are connected to the main arm through bolts, a supporting rod of the distance regulating device is connected to a rear connecting rods through a pin, a hydraulic cylinder seat is welded to the main arm, and a hydraulic cylinder operated with the hydraulic cylinder seat is connected to the front connecting rods. By the aid of the tubular pile centering device, centering a tubular pile which is horizontally stored and which is moved accurately and rapidly with a wellhead drilling pile can be realized, tubular pile centering performances are fine, so that the drilling rig tubular pile processing procedure is simple, secure and reliable, automation degree of a slant well drilling rig tubular pile processing system can be increased, and the defects that an existing slant well drilling rig tubular pile processing procedure is complex, tubular pile centering effect is unexpected, operating efficiency is low, and security is poor are overcome.

Description

Technical field: [0001] The invention relates to a drilling rig for inclined and straight wells in oil fields, in particular to a centering device for pipe strings of the drilling rig for inclined and straight wells. Background technique: [0002] The traditional pipe string processing method has been used in oilfield drilling operations in my country, using hoisting systems such as traveling blocks, hooks, and elevators to lift the pipe string, and wellhead power systems such as turntables and hydraulic clamps to complete the make-up and break-out of the pipe string. The middle problem makes the frequent tripping process take up a lot of drilling operation time, which reduces the drilling efficiency and work safety. Invention content: [0003] The technical problem to be solved by the present invention is to provide a pipe string centering device for inclined well drilling rigs. The string processing procedure is simple, safe and reliable, and the automation degree of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/24
Inventor 高胜樊岩松郑永谭朱宝林王妍
Owner CNPC BOHAI EQUIP MFG
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