Well logging device and method
A well logging and wellbore technology, applied in the field of oil and gas exploration, can solve the problems of being unable to pass through high-curvature well sections or branch well sections, hindering the evaluation of thin-layer resources or side-well resources, and being unable to pass through, etc.
Pending Publication Date: 2021-07-06
徐梓辰
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However, existing logging tools or logging-while-drilling tools cannot pass through high-curvature well sections or branch well sections with a curvature radius of less than 30 meters, especially through extremely short-radius well sections or extremely short-radius branches with a curvature radius of less than 10 meters Well section
This limits logging or logging-while-drilling operations in high-curvature boreholes, making drilling more difficult and preventing evaluation of thin or side-by-hole resources
Method used
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[0065] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.
[0066] In the first aspect, the embodiment of the present invention provides a logging device, such as figure 1As shown, the device includes: a short joint series Y for passing through a borehole whose curvature radius is within a preset range, a signal transceiving unit 4 , and a control unit and / or signal acquisition unit 5 . Wherein, the series of sub-sections includes: at least one transceiver sub-section 3 and a plurality of transmission sub-sections 1 connected in an articulated manner. The transceiver sub-section 3 is provided with a signal transceiver unit 4 ...
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The invention discloses a well logging device and method. The well logging device comprises a short section serial, a receiving and sending unit, a control unit and / or a signal collecting unit used for penetrating through a high-curvature well section with the curvature radius within a preset range to conduct well logging operation, wherein the short section serial comprises one or more receiving and sending short sections, one or more bearing short sections and a plurality of conveying short sections which are connected in a hinged mode; a signal receiving and sending unit for receiving and sending stratum signals is arranged on each receiving and sending short section, the control unit and / or the signal collecting unit which are / is electrically connected with each signal receiving and sending unit are / is arranged on the corresponding bearing short section, the control unit is used for controlling the corresponding signal receiving and sending unit to transmit the signals to the stratums, and the signal collecting unit is used for collecting the stratum signals received by the corresponding signal receiving and sending unit. The multiple conveying short sections are used for being connected with high-trafficability short section series in series or used for being connected with the receiving and sending short sections and the bearing short sections. According to the well logging device, well logging operation in a high-curvature well section and an extended well section thereof can be ensured to be smoothly carried out.
Description
technical field [0001] The invention relates to the technical field of oil and gas exploration, in particular to a logging device and method. Background technique [0002] The detection of subsurface resources requires extensive use of logging tools. Existing technology can perform well logging for vertical wells, deviated wells, and lateral wells. However, existing logging tools or logging-while-drilling tools cannot pass through high-curvature well sections or branch well sections with a curvature radius of less than 30 meters, especially through extremely short-radius well sections or extremely short-radius branches with a curvature radius of less than 10 meters Well section. This limits logging or logging-while-drilling operations in high-curvature boreholes, increases difficulty, and hinders evaluation of thin-bed or side-by-hole resources. Contents of the invention [0003] The embodiment of the present invention provides a well logging device to ensure the smooth...
Claims
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Login to View More IPC IPC(8): E21B47/00E21B47/13E21B47/18
CPCE21B47/00E21B47/18
Inventor 徐梓辰
Owner 徐梓辰