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System for Measuring the Shock Vibration State of Downhole Instruments While Drilling

A technology of downhole instruments and shock and vibration, applied in the field of oil drilling, can solve the problems of deformation of the joints of the downhole sub joints, reduce operation safety, inconvenient use, etc. Effect

Active Publication Date: 2017-09-26
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the above devices and methods realize the real-time monitoring of the vibration state of the downhole drill bit / drill string during the drilling process, the measurement tools must be combined with MWD and other telemetry systems to send data to the ground. In the well, it is inconvenient to use; at the same time, during the drilling process, the joints of the downhole sub joints are prone to deformation and fracture, and the number of sub joints used is large, which reduces the safety of the operation

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  • System for Measuring the Shock Vibration State of Downhole Instruments While Drilling
  • System for Measuring the Shock Vibration State of Downhole Instruments While Drilling
  • System for Measuring the Shock Vibration State of Downhole Instruments While Drilling

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Embodiment Construction

[0028] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[0029] In this specification, the term "upper, upper end, above" refers to the side away from the center of the earth along the longitudinal direction of the drill string; the term "lower part, lower end, below" refers to the side toward the center of the earth along the longitudinal direction of the drill string.

[0030] figure 1 It shows the conventional drilling equipment installed with the system according to the present invention, including the derrick 1, the drill bit 2, the instrument to be tested 3, the drill string 5, etc. Since the above-mentioned structure is the structure in the common drilling equipment, those skilled in the art can easily understand, The markings in the drawings are only for the convenience of understanding the present invention, and will not be introduced in detail in this specification. exist figure 1 In the illustrated embodi...

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Abstract

The invention proposes a system for measuring the shock vibration state of downhole instruments while drilling, which includes a downhole part installed on a drill pipe, the downhole part has a casing, a sealing cylinder installed in the casing, and an antenna. A drilling fluid channel is formed between the body and the barrel, and a line base is provided in the barrel, and the line base includes at least two installation grooves with openings spaced apart from each other along the longitudinal direction, and a measuring The circuit is provided with a control and transmission circuit in the second installation slot, wherein the control and transmission circuit controls the measurement circuit to start parameter measurement at a preset time, and receives measurement results from the measurement circuit and transmits them through the antenna. The system according to the invention has high safety, accurate measurement point position, high integration degree and convenient assembly.

Description

technical field [0001] The invention relates to the field of petroleum drilling, in particular to a system for measuring the shock vibration state of downhole instruments while drilling. Background technique [0002] There are various types of downhole instruments with precise structures. In the process of drilling operations, high-intensity vibrations will be generated, which will generate impact loads on downhole instruments, which may cause unsatisfactory working results of downhole instruments, and even cause damage to the instruments in severe cases. Real-time detection of the impact strength, direction and frequency of the downhole instrument and its vibration state can accurately judge the condition of the downhole instrument, and control it in time when abnormal vibration occurs to prevent damage to the instrument. At the same time, it serves as a reference for the verification of the performance of the instrument and the calibration and analysis of the measurement ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/00
Inventor 陈晓晖杨春国牛新明宋朝晖高炳堂王立双刘科满孙连环张辉
Owner CHINA PETROLEUM & CHEM CORP
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