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A system and method for measuring torque while drilling

A torque measurement and drilling technology, which is applied in the automatic control system of drilling, measurement, drilling equipment, etc., can solve the problems of inaccurate torque measurement while drilling, poor real-time performance, etc., and achieve the effect of high sensitivity and favorable processing

Active Publication Date: 2022-04-22
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention mainly solves technical problems such as inaccurate torque measurement while drilling and poor real-time performance existing in the prior art, and provides a downhole torque measurement system and method while drilling

Method used

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  • A system and method for measuring torque while drilling
  • A system and method for measuring torque while drilling
  • A system and method for measuring torque while drilling

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Experimental program
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Effect test

Embodiment

[0038] 1. Drill collar device structure

[0039] see Picture 1-1 , The downhole torque measurement device while drilling provided by the implementation of the present invention includes: a downhole torque measurement and measurement drill collar installation body capable of bearing oil drilling pressure, a round hole for installing a torque measurement sensor array, a battery compartment, a pressure measurement circuit compartment, and an MWD interface Protocol circuit cabin.

[0040] The torque measurement sensor is arranged in an equidistant circular array in the axial direction of the drill collar body. It is composed of a torque measurement ring embedded with a torque and strain measurement body. The ring array can measure the short circuit of dynamic parameters during coiled tubing drilling. The measured torque signal is sent to the measurement signal conditioning circuit for corresponding signal processing, and converted into a digital torque value through AD sampling, ...

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Abstract

The invention relates to a torque measurement system and method, which belong to the technical field of drilling, in particular to a downhole torque measurement system and method while drilling. It includes: the drill collar body, on the outer wall of which a plurality of torque sensor installation grooves are arranged at equal intervals and coaxial centers, and through holes are arranged between adjacent torque sensor installation grooves; the torque measurement sensor is a torque sensor installed on the torque sensor. The elastic circular ring structure inside the groove is provided with a plurality of torque and strain measuring bodies arranged at equal distances on the same circumference. Therefore, the present invention has the following advantages: 1. By adopting the measurement while drilling method, the torque on the drilling tool can be obtained in real time, thereby providing support for quickly adjusting the parameters of the drilling tool; 2. Using a plurality of measuring bodies on the ring structure of the torque measurement sensor To monitor the torque change, improve the measurement accuracy.

Description

technical field [0001] The invention relates to a torque measurement system and method, which belong to the technical field of drilling, in particular to a downhole torque measurement system and method while drilling. Background technique [0002] MWD (Measurement While Drilling) means that the drilling rig continuously detects information about the drill hole or the drill bit while drilling. [0003] During the drilling process, the accurate measurement of drilling engineering parameters such as the drilling pressure and torque near the drill bit is very important for safe and efficient drilling. With the increase of drilling depth, especially in the development of various branch wells and horizontal wells, various drilling accidents such as stuck pipe, cone loss, and drill tool breakage occur from time to time, which brings great impact to the safety and efficiency of drilling production. Real-time measurement of changes in drilling engineering parameters such as WOB torq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B44/00E21B47/12E21B17/16
CPCE21B17/16E21B44/00E21B47/12
Inventor 贾衡天高文凯盛利民窦修荣艾维平王家进王鹏毛为民李明印洪迪峰
Owner BC P INC CHINA NAT PETROLEUM CORP