Acoustic wave principle-based logging cable measurement depth correction method, equipment and system
By excitating and receiving sound waves in the wellhead, using the physical properties of the wellbore waves to accurately measure the depth of the logging cable, the problem of insufficient calibration accuracy of the cable depth counter in deep well logging is solved, and high-precision depth positioning is achieved.
CN119801492APending Publication Date: 2025-04-11YANGTZE UNIVERSITY
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Patent Information
- Application Number
- CN202510204553.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2025-04-11
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Figure CN119801492A_ABST
Abstract
The invention discloses a logging cable measurement depth correction method, equipment and system based on an acoustic wave principle, and is applied to the technical field of acoustic wave ranging, cable logging and cable downhole operation. In order to overcome the defect that a traditional cable depth calibration method in a standard well cannot meet deep well calibration, physical properties of wellbore waves and an acoustic ranging principle are utilized, and a combined acquisition method of excitation in a well mouth, receiving in the well mouth and receiving in the well by a logging cable head end detector is adopted. According to the method, the actual depth of the logging cable in the well is accurately measured, the logging cable depth counter is calibrated, the depth positioning accuracy of cable logging is effectively improved, and the requirement of industry development for deep thin reservoir positioning is met.
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