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Method, device and equipment for determining seismic interpretation horizon in small logging stratification and medium

A technique for seismic interpretation and method determination, applied to seismology, measuring devices, and seismology for well logging records, which can solve problems such as low accuracy and low efficiency

Pending Publication Date: 2021-01-26
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

[0003] The embodiment of the present invention provides a method for determining the seismic interpretation horizon of a small well logging layer to solve the low efficiency and low accuracy of the time domain seismic interpretation horizon determination of a small well logging layer in the prior art question

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  • Method, device and equipment for determining seismic interpretation horizon in small logging stratification and medium
  • Method, device and equipment for determining seismic interpretation horizon in small logging stratification and medium

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and 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.

[0030] In an embodiment of the present invention, a method for determining horizons in seismic interpretation of well logging sublayers is provided, such as figure 1 As shown, the method includes:

[0031] Step 102: establishing the corresponding relationship between logging layers and time-domain seismic interpretation horizons;

[0032] Step 104: According to the corresponding relationship, calculate the time-domain thickness difference between the large logging layer and the small logging layer of the well point;

[0033] Step 106: calculating the standard layer thickness surface between t...

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Abstract

The embodiment of the invention provides a method, device and equipment for determining a seismic interpretation horizon of a small logging stratification, and a medium. The method comprises the steps: building a corresponding relation between the small logging stratification and a time domain seismic interpretation horizon; calculating a time domain thickness difference point between a large logging stratification and the small logging stratification of the well point according to the corresponding relation; calculating a standard layer thickness surface between the time domain earthquake standard layers above and below the logging small stratification; calculating a time domain thickness difference surface of the large logging stratification and the small logging stratification accordingto the time domain thickness difference point of the large logging stratification and the small logging stratification of the well point, and performing space trend constraint on the time domain thickness difference surface of the large logging stratification and the small logging stratification according to the thickness surface of the standard layer; and determining a time domain seismic interpretation horizon of the small logging stratification according to the time domain seismic standard layer above the small logging stratification (or the time domain seismic standard layer below the small logging stratification) and the time domain thickness difference surface.

Description

technical field [0001] The invention relates to the technical field of seismic interpretation, in particular to a method, device, equipment and medium for determining a seismic interpretation horizon of a well logging sublayer. Background technique [0002] Seismic interpretation can only explain large geological horizons, corresponding to the large stratification in well logging. For the next-level marker layer or small stratification on well logging, the seismic response is often weak or even no response, making the small stratification of well logging Although layers can be calibrated on the seismic section through well-seismic synthetic records, it is often difficult to trace and interpret because of seismic resolution limitations or stratum changes, seismic event instability, and poor continuity. Even if it is barely interpreted, it will take a lot of time. In addition The quality of interpretation is still not guaranteed, which brings great difficulties to reservoir ge...

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Application Information

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IPC IPC(8): G01V1/50
CPCG01V1/50G01V2210/6169G01V2210/624
Inventor 赵师权王玉珍党虎强孙德胜张胜李凯
Owner BC P INC CHINA NAT PETROLEUM CORP
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