Drilling earthquake reference signal collection method and device

A technology of reference signal and acquisition device, which is used in earth-moving drilling, surveying, wellbore/well components, etc. It can solve problems such as poor signal quality and signal cable breakage, and achieve convenient battery replacement, avoid wear and tear, and the system is easy to use. Effect

Inactive Publication Date: 2010-06-23
SHENGLI PETROLEUM ADMINISTRATION BUREAU DRILLING TECH ACAD SINOPEC
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Problems solved by technology

During the drilling process, due to the swing of the hose, the signal cable is easily...

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  • Drilling earthquake reference signal collection method and device
  • Drilling earthquake reference signal collection method and device
  • Drilling earthquake reference signal collection method and device

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Embodiment Construction

[0024] Now further describe the present invention in conjunction with accompanying drawing of description. figure 1 , figure 2 They are the axial and radial sections of the seismic reference signal acquisition device while drilling, respectively. As the installation carrier of the equipment, the pup joint is a part of the uphole drilling tool, which is located below the faucet and above the drill pipe. The four sides of the middle part of the pup joint are respectively milled out as attached figure 2 The four cavities shown are circuit board compartment (20), battery compartment (21), sensor compartment (22) and wireless module compartment (23). The explosion-proof housings are separately molded and placed in the four compartments, and the circuit cardboard of the seismic reference signal acquisition device while drilling is placed in the explosion-proof housings of the circuit board warehouse (20), including a filter conditioning unit (33), a signal amplification unit (3...

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Abstract

The invention relates to a drilling earthquake reference signal collection method and a device. The noise generated by the vibration of a drilling bit in the well drilling process is used as a quake source, the drilling earthquake reference signal collection device arranged under a square drilling rod is used for collecting vibration signals of the drilling bit transmitted in the drilling post direction, the collected data is sent to a reference signal monitoring host machine in a wireless way, and the data is sent to a center host machine after being processed by the reference signal monitoring host machine. The drilling earthquake reference signal collection device comprises a sensor unit (32), a wave filtering modulation unit (33), an A/D converter (35), a real-time clock unit (38), a GPS unit (40), a wireless communication unit (41), a memory unit (42) and the like, wherein each unit is placed in a pipe nipple. The device has the advantages of convenient construction, no influence on the production process of the drilling well, rigid connection with the drilling post, real-time signal transmission, good signal quality, convenient replacement of batteries and easy maintenance of a system.

Description

technical field [0001] The invention relates to a seismic reference signal acquisition method and device while drilling, that is, a seismic equipment while drilling that uses the noise generated by the vibration of the drill bit during the drilling process as a seismic source to automatically collect and wirelessly transmit the vibration signal of the drill bit propagating along the direction of the drill string . Background technique [0002] The seismic while drilling method uses the vibration generated when the drill bit breaks the rock during the drilling operation as the underground seismic source, collects the vibration signal of the drill bit transmitted by the drill pipe through the sensors installed on the top of the derrick and the drill pipe, and arranges it through the detector on the ground survey line The direct wave and reflected wave of the drill bit signal propagating up through the formation are collected. The signal collected from the drill pipe is usuall...

Claims

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Application Information

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IPC IPC(8): E21B47/12E21B47/18
Inventor 韩来聚魏茂安孙正义曹忠成李玉红许海庭王爱凤于笑冬
Owner SHENGLI PETROLEUM ADMINISTRATION BUREAU DRILLING TECH ACAD SINOPEC
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