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Processing and interpreting method of array acoustic imaging logging data

A technology for array acoustic logging and imaging logging, which is applied to seismology, seismic signal processing, and measurement devices for logging records, can solve problems such as low accuracy and complexity of results, and can meet engineering accuracy requirements, The effect of reasonable shear wave time difference and accurate shear wave time difference

Inactive Publication Date: 2019-11-15
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology

[0004] The existing logging data processing and interpretation methods are complicated, and the result accuracy is not high, so there is an urgent need for a logging data processing and interpretation method with simpler methods and higher accuracy

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  • Processing and interpreting method of array acoustic imaging logging data
  • Processing and interpreting method of array acoustic imaging logging data
  • Processing and interpreting method of array acoustic imaging logging data

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Embodiment Construction

[0095] The present invention will be further described below in conjunction with the drawings and embodiments.

[0096] Such as Figure 1-16 As shown, an array acoustic imaging logging data processing and interpretation method includes:

[0097] S1: Collecting and sorting out the multipole array sonic logging data of the target well in the work area. The multipole array sonic logging adopts the dipole sonic imaging logging tool of the array dipole sonic logging, and the multipole array scanning imaging sonic wave One or more of logging tools and orthogonal dipole array acoustic logging tools perform logging. The dipole sonic imaging logging tool DSI (Dipole Shear-wave Image) and the multi-pole array scanning imaging sonic logging tool SS (Sonic Scanner) are used by Schlumberger on the MIXS-500 logging system. Orthogonal Dipole Array Acoustic Logging Tool (XMAC) is equipped with Atlas Company 5700 (ECLIPS) for use. The logging data is the raw data measured by DSI, SS or XMAC, and ...

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Abstract

The invention discloses a processing and interpreting method for array acoustic imaging logging data. The method comprises the following steps: S1, collecting and sorting multipole array acoustic logging data of a target well in a working area; S2, extracting the time difference of longitudinal waves, transverse waves and stoneley waves from the logging data with a time domain or a frequency domain method to obtain a time difference curve, and performing quality monitoring on the time difference curve; S3, constructing a transverse wave time difference curve of a dipole-free acoustic data well; S4, analyzing the fast and slow transverse wave anisotropy of acoustic imaging logging and applying analysis results. The method is simple, has low calculation workload and high calculation efficiency, can be applied to various geological target wells, and has high result precision.

Description

Technical field [0001] The present invention relates to the technical field of oil field development, in particular to a processing and interpretation method of array acoustic imaging logging data. Background technique [0002] Multipole array acoustic logging (Digital Array Log, referred to as DAC for Atlas Co., Ltd.) is a new generation of full-wave train logging after long-source distance acoustic logging, also known as digital array acoustic logging. Compared with the previous long source distance acoustic logging, its receiving probes increase, the probe spacing becomes smaller, the acoustic wave frequency becomes lower, the probe transmission frequency is reduced, and the detection of formation shear wave information and the recording of Stoneley waves are enhanced. It has broad application prospects in evaluating thin layers, fractures, gas layers, and geological structures near the well. [0003] Logging data generally record a variety of different physical parameters, suc...

Claims

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Application Information

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IPC IPC(8): G01V1/50
CPCG01V1/50G01V2210/626
Inventor 刘文武夏宏泉
Owner SOUTHWEST PETROLEUM UNIV
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