Supercharge Your Innovation With Domain-Expert AI Agents!

Steering bias tool and steering bias method

An offset and tool technology, applied in directional drilling, electromechanical devices, earth-moving drilling, etc., can solve the problem of self-heating of the system, which is difficult to solve, and the control accuracy of wellbore trajectory is poor, so as to achieve simple and reliable monitoring and reduce self-heating problems. , the effect of reducing power requirements

Inactive Publication Date: 2010-04-21
刘宝林 +1
View PDF1 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of poor wellbore trajectory control accuracy and self-heating of the system in the existing way, the present invention provides a guiding and biasing tool and a biasing method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Steering bias tool and steering bias method
  • Steering bias tool and steering bias method
  • Steering bias tool and steering bias method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will be further described in conjunction with accompanying drawing:

[0025] Such as Figure 1 to Figure 3 Shown: a guide biasing tool, including a non-rotating jacket 1 and a rotating mandrel 3, the non-rotating jacket 1 and the rotating mandrel 3 are connected through a bearing assembly 20, the upper end seal 2 and the lower end combined seal 21 seal the hydraulic oil in the inner cavity It is completely separated from the drilling fluid in the outer cavity; the non-rotating casing 1 has an outer surface, and an anti-rotation mechanism 22 is installed on the outer surface. The control system measures the offset of the rotating mandrel 3 through the displacement sensor 12, and transmits it through the downhole short-range communication system. To the measurement and control system, the control system 6 presets the design parameters of the wellbore trajectory, compares the measured values ​​of the measurement while drilling with the trajectory desi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a steering bias tool, which belongs to the technical field of automatic closed-loop steering drilling tools of petroleum, drilling, and exploration and development, and comprises a non-rotation jacket, a rotating mandrel and bias execution mechanisms, wherein the non-rotation jacket is sleeved outside the rotating mandrel, and at least two anti-rotation mechanisms are arranged on the outer surface of the non-rotation jacket; and a directional sleeve is arranged on the rotating mandrel through a needle bearing, the outside of the directional sleeve is circumferentially and evenly distributed with at least three sets of the bias execution mechanisms, each set of bias execution mechanism comprises a rolling bearing, a left sliding block, a reverse-flighted screw, a right sliding block, a left support and a right support, and the positions, which correspond to the left sliding block and the right sliding block, on the directional sleeve are provided with two symmetrical inclined planes. The steering bias tool realizes the bending of the rotating mandrel by using a machine, which is a rigid motion, so the control accuracy is higher; and the motion of a directional bending execution mechanism is static bias, so the power consumption is low, the spontaneous heating problem of the system is effectively solved, and the sealing requirement on the system is reduced and a sealing structure is simplified at the same time.

Description

technical field [0001] The invention belongs to the technical field of automatic closed-loop steering drilling tools for petroleum, drilling, exploration and development. Specifically, the present invention relates to a drilling tool and a biasing method for producing directional bending of a downhole tool to realize high-precision biasing and steering. Background technique [0002] With the development of the petroleum industry, there are more and more demands and difficulties for the development of special craft wells such as deep wells, ultra-deep wells, extended-reach wells and long-distance horizontal wells. The requirements are getting higher and higher, and the research and development of steering tools for high-precision steering drilling is more important and urgent. [0003] The traditional steering method is to use the combination of steering motor and PDC bit, and the sliding drilling and the rotating drilling of the steering motor are carried out alternately, b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E21B44/02E21B7/04H02K7/10
Inventor 刘宝林周琴胡远彪杜建生李国民杨甘生
Owner 刘宝林
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com