Downhole bit pressure and torque measuring tool

A technology of torque measurement and weight-on-bit, applied in measurement, drill pipe, drill pipe, etc., can solve the problems of deviation, affect the quality of the wellbore, affect the safe use of drilling tools, etc., and achieve the effect of improving the measurement accuracy

Pending Publication Date: 2022-03-01
中石化石油工程技术服务有限公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the WOB measurement mainly depends on the weight-on-bit data displayed on the drill floor to judge the downhole conditions. There is a certain deviation in the situation, which not only affects the quality of the wellbore, but also affects the safe use of drilling tools

Method used

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  • Downhole bit pressure and torque measuring tool
  • Downhole bit pressure and torque measuring tool
  • Downhole bit pressure and torque measuring tool

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Embodiment Construction

[0058] Below will combine the appended in the embodiment of the present invention Figure 1-5, clearly and completely describe the technical solutions in the embodiments of the present invention. The present invention can be implemented in many different forms, and is not limited to the embodiments described in this embodiment. The purpose of providing the following specific embodiments is to facilitate a clearer and more thorough understanding of the disclosure of the present invention, wherein the words indicating orientation such as below are only for the positions of the structures shown in the corresponding drawings.

[0059] It should be understood that the terminology used herein is only used to describe specific embodiments, not to limit the present invention. As used herein, the singular forms "a" and "" are intended to include the plural unless the context clearly dictates otherwise. Further, when used in this specification, the terms "comprising" and / or "comprisin...

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Abstract

The invention discloses an underground bit pressure and torque measuring tool which comprises a drill collar short section, a strain measuring instrument, a control device and a bit pressure and torque data collecting and controlling short section. A first mounting groove and a second mounting groove are respectively formed in the side wall of the drill collar short section, the strain measuring instrument and the control device are respectively packaged in the first mounting groove and the second mounting groove, and the strain measuring instrument is in interference fit with the groove wall of the first mounting groove; the bit pressure and torque data acquisition and control pup joint is mounted in the drill collar pup joint; the strain measuring instrument is in signal connection with the control device and can transmit a measured torque signal to the control device, and the control device is used for processing the torque signal; and the bit pressure and torque data acquisition and control short section is in signal connection with the control device and is used for storing and receiving processed data signals transmitted by the control device. According to the invention, the strain measuring instrument is packaged in the first mounting groove formed in the drill collar short section, so that the measurement accuracy of the strain measuring instrument is prevented from being influenced by external mud, and the measurement precision of the bit pressure torque is improved.

Description

technical field [0001] The invention relates to the technical field of oil drilling downhole strain measurement, in particular to a downhole drilling pressure torque measurement tool. Background technique [0002] With the rapid development of the oil and gas industry and the continuous deepening of oil exploration and development, the downhole formation structure is becoming more and more complex. There are more and more special craft wells such as deep wells, high temperature and high pressure wells, extended reach wells, and horizontal wells with long horizontal sections. Downhole accidents and There is also an increasing incidence of complications. [0003] The measurement of the weight on bit can predict the deflection ability of the drilling tool, so as to control the drilling trajectory. At present, the WOB measurement mainly depends on the weight-on-bit data displayed on the drill floor to judge the downhole conditions. There is a certain deviation in the situation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00E21B47/06E21B47/12E21B44/00E21B17/16
CPCE21B47/00E21B47/06E21B47/12E21B44/00E21B17/16
Inventor 耿燕孔华白汉栋晁文学张敏闫玉鹏
Owner 中石化石油工程技术服务有限公司
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