Near-bit measurement while drilling method, system and equipment and computer readable storage medium
A measurement-while-drilling and near-drilling technology, which is applied in the directions of measurement, earthwork drilling, borehole/well components, etc., can solve problems such as the inability to guarantee the authenticity and reliability of the gamma data processing algorithm, and achieve enhanced wellbore trajectory control capabilities, Improve the drilling rate and recovery rate, and ensure the effect of authenticity and reliability
Pending Publication Date: 2022-06-17
BC P INC CHINA NAT PETROLEUM CORP +1
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[0064] Hereinafter, the near-bit measurement-while-drilling method, system, device, and computer-readable storage medium of the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.
[0065] It should be noted that "first", "second", etc. are only for the convenience of description and distinction, and should not be construed as indicating or implying relative importance. "Upper", "lower", "inner" and "outer" are only for convenience of description and constitute relative orientation or positional relationship, and do not indicate or imply that the referred component must have the specific orientation or position. For those of ordinary skill in the art, some of the terms "pressure" herein are equivalent to pressure.
[0066] Additionally, the steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions, and, although shown in a logical order i...
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The invention provides a near-bit measurement-while-drilling method, system and device and a computer readable storage medium, and the method comprises the steps: recording the output data of an acceleration sensor and a fluxgate sensor, and carrying out the compensation correction of the output data of the acceleration sensor through an accelerometer dynamic correction algorithm, obtaining a well deviation solution value and a tool surface solution value; the method comprises the following steps: acquiring gamma information in different orientations by using a gamma sensor, determining the orientation of the gamma sensor according to a tool surface resolving value, distributing obtained gamma information acquisition values according to sectors, and weighting the gamma information acquisition values of different orientations in each sector by using a gamma data processing algorithm to obtain orientation gamma data. According to the method, the real-time high-precision measurement of the dynamic tool surface can be realized, the accuracy of azimuth gamma data measurement is improved, the well track control capability of a near-bit measurement-while-drilling system is enhanced, and the drilling encounter rate and the recovery rate of a reservoir are improved.
Description
technical field [0001] The present invention relates to the technical field of near-bit measurement-while-drilling, in particular, to a near-bit measurement-while-drilling method, a measurement-while-drilling system, a device, and a computer-readable storage medium storing a computer program . Background technique [0002] Since the 20th century, most of the domestic oil and gas fields have successively entered the marginal oil and gas fields, complex fault-block oil and gas fields, ultra-thin oil and gas reservoirs and other old oil fields that are difficult to produce reserves, as well as shale gas development stages. Because the shale of oil and gas reservoirs usually presents the characteristics of thin reservoir, soft lithology, and difficulty in deflecting, which puts forward new requirements for the existing drilling technology. [0003] The existence of near-bit measurement-while-drilling technology can realize precise control of wellbore trajectory at low cost, and...
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IPC IPC(8): E21B47/11E21B47/00E21B47/26
CPCE21B47/111E21B47/00E21B47/26
Inventor 刘伟冯思恒陈东许期聪余鹏郑海波杨瑞帆王鹏刘静远
Owner BC P INC CHINA NAT PETROLEUM CORP