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Core beach scale identification method

An identification method and scale technology, which can be applied in the field of gas field development and research, and can solve the problems of difficulty in identifying the scale of the center bank and low accuracy.

Pending Publication Date: 2022-07-01
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for identifying the scale of the midshore, so as to solve the problems of difficulty and low precision in identifying the scale of the midshore at present

Method used

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  • Core beach scale identification method
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  • Core beach scale identification method

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Embodiment Construction

[0022] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0023] The present invention analyzes the channel trend through the logging and logging data of the existing vertical wells and pilot wells in the target area, and then establishes the corresponding relationship between the shoal and logging and logging according to the existing logging and logging data, and analyzes the horizontal section. The location of the center shoal was drilled, and the development scale of the center shoal was analyzed by using the drilling and logging data of the horizontal section. The implementation process of this method is as follows figure 1 As shown, the specific implementation process is as follows.

[0024] 1. Obtain the logging and logging data of the existing vertical wells and pilot wells in the target area.

[0025] In this embodiment, the logging data obtained include lithology, total hydrocarbon value ...

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Abstract

The invention relates to a core beach scale identification method, and belongs to the technical field of gas field development and research. According to the method, the trend of the riverway is analyzed through logging and logging information of existing vertical wells and pilot wells in a target area, then the corresponding relation between a central beach and logging and logging is established according to the existing logging and logging information, the part of the central beach drilled in a horizontal section is analyzed, and the development scale of the central beach is analyzed through actual drilling and logging information of the horizontal section. According to the method, the problem of high difficulty in accurately depicting the center beach distribution due to small well pattern density and low geophysical prospecting precision is solved, the center beach scale prediction precision is improved, and a guarantee is provided for improving and adjusting the success rate of well position arrangement.

Description

technical field [0001] The invention relates to a method for identifying the scale of a center shoal, and belongs to the technical field of gas field development research. Background technique [0002] As the development of gas fields continues to advance, the development of gas fields is getting higher and higher, and the geological conditions of the remaining undeveloped areas are gradually worsening. Due to the characteristics of large differences in layer physical properties, gas-bearing properties, and strong heterogeneity, the production of infill wells shows a gradually decreasing trend, and the effect of infill adjustment gradually declines, which cannot meet the efficient adjustment of gas fields. The accurate identification of the scale of the center bank is helpful for the effective identification of the distribution law of the reservoir. [0003] The patent application document with the application publication number CN110442906A discloses a method for quantitat...

Claims

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Application Information

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IPC IPC(8): E21B47/00E21B49/00
CPCE21B47/00E21B49/00
Inventor 何发岐雷涛刘林松任广磊李晓慧孙华超唐明远崔璐
Owner CHINA PETROLEUM & CHEM CORP
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