Supercharge Your Innovation With Domain-Expert AI Agents!

Rotary steering command downloading method based on motor variable frequency control

A frequency conversion control and rotary steerable technology, which is applied in the field of oil drilling, can solve the problems of cumbersome operation, high bit error rate, and low precision, and achieve the effect of effective verification and downloading, and improving the accuracy of downloading

Active Publication Date: 2020-08-04
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still problems of slow download speed, low accuracy, cumbersome operation and high bit error rate

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
  • Rotary steering command downloading method based on motor variable frequency control
  • Rotary steering command downloading method based on motor variable frequency control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] see figure 1 , a method for transmitting rotation-steering commands based on motor frequency conversion control, comprising the following steps:

[0040] a. The motor controller box of the rotation-guided command downlink system receives the input parameters input to the touch screen, processes the input data and outputs the motor frequency conversion control command;

[0041] b. The motor frequency conversion control box performs command conversion and control signal amplification, and outputs frequency conversion signals;

[0042] c. The motor receives the frequency conversion signal for speed control, adjusts the pump stroke of the mud pump through the motor speed to form a corresponding displacement, and the mud drives the downhole turbine generator to form a turbine voltage;

[0043] d. The invalid voltage is judged by the voltage acquisition judger, and the downhole microprocessor processes the voltage signal and judges the garbled code invalid download command a...

Embodiment 2

[0047] see figure 1 and figure 2 , a method for transmitting rotation-steering commands based on motor frequency conversion control, comprising the following steps:

[0048] a. The motor controller box of the rotation-guided command downlink system receives the input parameters input to the touch screen, processes the input data and outputs the motor frequency conversion control command;

[0049] b. The motor frequency conversion control box performs command conversion and control signal amplification, and outputs frequency conversion signals;

[0050] c. The motor receives the frequency conversion signal for speed control, adjusts the pump stroke of the mud pump through the motor speed to form a corresponding displacement, and the mud drives the downhole turbine generator to form a turbine voltage;

[0051] d. The invalid voltage is judged by the voltage acquisition judger, and the downhole microprocessor processes the voltage signal and judges the garbled code invalid dow...

Embodiment 3

[0057] see figure 1 and figure 2 , a method for transmitting rotation-steering commands based on motor frequency conversion control, comprising the following steps:

[0058] a. The motor controller box of the rotation-guided command downlink system receives the input parameters input to the touch screen, processes the input data and outputs the motor frequency conversion control command;

[0059] b. The motor frequency conversion control box performs command conversion and control signal amplification, and outputs frequency conversion signals;

[0060] c. The motor receives the frequency conversion signal for speed control, adjusts the pump stroke of the mud pump through the motor speed to form a corresponding displacement, and the mud drives the downhole turbine generator to form a turbine voltage;

[0061] d. The invalid voltage is judged by the voltage acquisition judger, and the downhole microprocessor processes the voltage signal and judges the garbled code invalid dow...

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 rotary steering command downloading method based on motor variable frequency control and belongs to the technical field of oil drilling. The method is characterized by comprising the following steps: a. a motor variable frequency control command is output; b. a variable frequency signal is output; c. rotating speed control is conducted, pump stroke of a slurry pump is adjusted, and slurry drives a downhole turbine engine to generate turbine voltage; d. invalid voltage is determined, a random code invalid downloading command and a vacant code invalid downloading command are determined, and request for re-sending the invalid commands is completed; and e. steps a-c are repeated until a correct downloading command is transmitted to a rotary steering mechanism. The method simplifies the operation of rotary steering command downloading; a correct downloading command can be transmitted to the rotary steering mechanism via the determination of the invalid voltage andof the random code and vacant code invalid downloading commands and via the arrangement that the request for re-sending the invalid commands is completed by an MWD system; and the downloading commandcan be precisely transmitted to the rotary steering mechanism, validity examination and downloading of a rotary steering command are realized, and downloading precision is improved.

Description

technical field [0001] The invention relates to the technical field of oil drilling, in particular to a method for transmitting rotation steering commands based on motor frequency conversion control. Background technique [0002] The rotary steerable system is a steerable drilling system that completes the steering function in real time while drilling while the drill string is rotating. Rotary steerable drilling has the characteristics of small friction and torsional resistance, high drilling speed, low cost, short well construction period, smooth well trajectory, easy control and extended horizontal section length. It is considered to be the development of modern steerable drilling technology. direction. [0003] The working mode of the rotary steerable system is recorded inside the tool through codes. When the engineer needs to change the working mode, the code is transmitted to the tool for identification by changing the speed or displacement of the top drive. After the ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/18E21B44/00E21B7/04H02P27/04
CPCE21B47/18E21B44/005E21B7/04H02P27/04
Inventor 陆灯云刘伟白璟张德军韩烈祥高林胡超连太炜汪洋陈东谭东冯思恒谢意廖冲郑海波张继川
Owner BC P INC CHINA NAT PETROLEUM CORP
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