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Rolling propelling device for perforating pipe string of horizontal well with upward inclination angle

A technology of propulsion device and horizontal well, which is applied to drilling pipes, casings, drilling equipment, etc., can solve the problems of low screening efficiency and easy blockage of screens, and achieve smooth conveying process, reduce friction resistance, and reduce the possibility of wear and tear. Effect

Pending Publication Date: 2022-08-09
大庆华翰邦石油科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the many deficiencies in the prior art, the present invention aims to provide a rolling propulsion device for perforation strings in up-dip horizontal wells to make up for the problems of low screening efficiency of single-degree-of-freedom vibrating screens and easy blockage of screens. At the same time, the parallel mechanism There are redundant motion components, which can reduce or eliminate the singular position of the mechanism, and the parallel mechanism is a low-coupling topology mechanism, which is beneficial to reduce the complexity of kinematics and dynamics analysis

Method used

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  • Rolling propelling device for perforating pipe string of horizontal well with upward inclination angle
  • Rolling propelling device for perforating pipe string of horizontal well with upward inclination angle
  • Rolling propelling device for perforating pipe string of horizontal well with upward inclination angle

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Embodiment

[0037] combine Figure 1-12 This embodiment provides a rolling propulsion device for a perforating pipe string in an up-dip horizontal well, which includes a perforating gun barrel 1 and a rolling propulsion joint 2, and the rolling propulsion joint 2 is detachably connected to two adjacent perforating guns between pipes 1; the rolling push joint 2 includes a joint body 3, a rotating body 4, a rolling body 5, a steel ball 6 and a conductive sealing communication component 7; the rotating body 4 is connected to the side wall of the joint body 3; The rolling body 5 is rollingly connected to the rotating body 4 through the steel ball 6; the rolling body 5 is used for supporting and eccentrically centralizing the perforating barrel; .

[0038] The rolling push joint 2 and the perforating gun barrel 1 are fastened and sealed by a threaded sealing ring, and the rolling bodies symmetrically arranged on both sides of the rolling push joint support the pipe string structure formed by ...

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Abstract

The invention discloses a rolling propelling device for a perforating pipe string of a horizontal well with an upper dip angle, and relates to the technical field of perforating devices for perforation completion of oil fields. Comprising perforating gun barrels and a rolling propelling connector, and the rolling propelling connector is detachably connected between every two adjacent perforating gun barrels; the rolling propelling connector comprises a connector body, a rotating body, a rolling body, a steel ball and a conductive sealing communication assembly. The rotating body is connected to the side wall of the connector body. The rolling body is in rolling connection with the rotating body through the steel ball; the perforating gun barrel string is supported and eccentrically centralized by the rolling body; a conductive sealing communication assembly is installed in the connector body. The connection between the adjacent perforating gun barrels is stable, the friction resistance in the cable pumping and conveying process of the upper dip angle horizontal well perforating pipe string can be reduced, and gravity reversing can be prevented.

Description

technical field [0001] The invention relates to the technical field of perforation and completion perforation devices in oilfields, in particular to a rolling propulsion device for perforation pipe strings in up-dip horizontal wells. Background technique [0002] Perforation completion in oil and gas fields refers to running the casing in the production layer, sealing the production layer with cement, and then using perforating bullets to shoot through the casing and cement, and penetrate into the rock of some production layers to form a channel for oil and gas flow. Completion method for connecting pay zone and wellbore. Perforation is an operation activity in which special energy-gathering equipment is used to enter the predetermined layer of the wellbore to perform explosive openings to allow the fluid in the underground formation to enter the wellbore. In thin oil layers and fractured oil reservoirs, special structural wells such as highly deviated wells and horizontal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/116E21B43/119E21B17/02E21B17/10E21B23/00
CPCE21B43/116E21B43/119E21B17/02E21B17/1057E21B23/00
Inventor 马新民陈建华毛俊杰孙博王新生葛显宝于龙谭忠超张磊席岩谌辰史鑫伟许鹏关凌峰朱璘张成宗立民赵龙高峰
Owner 大庆华翰邦石油科技有限公司
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