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Communication device and method for downhole geological parameters

A technology of geological parameters and communication devices, applied in earthwork drilling, wellbore/well components, measurement, etc., can solve problems such as complex structure, unfavorable near-drill measurement and assembly of data transmission devices, unstable signals, etc.

Active Publication Date: 2016-04-06
BC P INC CHINA NAT PETROLEUM CORP +2
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Problems solved by technology

[0004] The embodiment of the present invention provides a communication device and method for underground geological parameters to solve the problem of unstable wireless transmission transmission signals in the prior art, and in the wired transmission mode, the structure of the entire near-drill measurement and data transmission device is relatively complicated , which is not conducive to the assembly of near-drill measurement and data transmission devices

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  • Communication device and method for downhole geological parameters
  • Communication device and method for downhole geological parameters
  • Communication device and method for downhole geological parameters

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] Such as figure 2 or image 3 As shown, a communication device for downhole geological parameters provided by an embodiment of the present invention includes: a measurement-while-drilling system 20 and a measurement and transmission motor system 30; the measurement-while-drilling system 20 includes a measurement-while-drilling nipple 201 and a first Transmitting short section 202 ; a first coupler 203 is connected to the lower part of the first data tr...

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Abstract

The invention provides a communication device and method for downhole geological parameters, and relates to the technical field of petroleum drilling measurement while drilling engineering. The communication device for the downhole geological parameters comprises a measurement while drilling system and a measuring and transmitting motor system. The measurement while drilling system comprises a measurement while drilling pipe nipple and a first data receiving and sending pipe nipple. The lower portion of the first data receiving and sending pipe nipple is connected with a first coupler. The measuring and transmitting motor system comprises a second data receiving and data pipe nipple, a screw motor, a near bit measuring pipe nipple and a drill bit. A second coupler is arranged on the upper portion of the measuring and transmitting motor system. The first coupler and the second coupler are in coupling connection. The problems that in the prior art, a wireless transmission mode is unstable in signal transmission, and in a wired transmission mode, the structure of a whole near bit measuring and data transmitting device is complex, and near bit measurement and assembly of a data transmitting device are not facilitated can be solved.

Description

technical field [0001] The invention relates to the technical field of oil drilling measurement-while-drilling engineering, in particular to a communication device and method for downhole geological parameters. Background technique [0002] At present, due to the advantages of accurate measurement and certain foresight, near-bit technology is a high-end technology in the field of measurement while drilling, and has been widely used in the field of petroleum logging. Downhole geological parameters, such as formation resistivity, natural gamma ray, etc., can be measured by near-drilling technology. In addition, through near-bit technology, the measured geological parameters can be transmitted to the measurement-while-drilling system in real time, including Logging While Drilling (LWD for short) or Measure While Drilling (MWD for short). As an important part of the near-bit measurement instrument, the screw motor is an essential directional power device. However, the data of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/12
CPCE21B47/12
Inventor 胡永建黄衍福史宏江张国田潘兴明孙琦韩昊辰孙成芹张春华赵博刘相翌王天娇
Owner BC P INC CHINA NAT PETROLEUM CORP
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