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High-precision seismic sequence division method

A high-precision, stratigraphic technology, applied in the field of oil and gas exploration, can solve the problems of insufficient resolution of seismic data and difficulty in introducing high-frequency seismic sequence stratigraphy, etc., and achieve the effect of high-precision seismic sequence division and improved seismic resolution.

Active Publication Date: 2020-09-15
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology

[0009] For seismic sequence stratigraphy, the existing technology has high requirements for seismic data, especially high-fidelity and high-resolution seismic data. Seismic Sequence Stratigraphy

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0039] Such as figure 1 As shown, a high-precision seismic sequence division method includes the following steps:

[0040] S01: Synthetic record fine calibration;

[0041] S02: Obtain seismic inversion data volume;

[0042] S03: High-precision seismic sequence division;

[0043] S04: Predict favorable areas for reservoir development.

[0044] The specific implementation process:

[0045] Step S01 (synthetic record fine calibration) includes:

[0046] Using logging data, geological data, seismic data combined with sedimentary geological characteristics, carry out fine calibration of synthetic records for typical wells, so as to achieve the best degree of well-seismic matching and lay a data foundation for subsequent seismic inversion;

[0047] Step...

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Abstract

The invention discloses a high-precision seismic sequence division method. The method comprises the following steps: S01, carrying out fine calibration on synthetic records; S02, obtaining a seismic inversion data volume; S03, performing high-precision seismic sequence division; and S04, predicting a favorable reservoir development area. The method has advantages that a problem that seismic sequence division cannot be carried out due to insufficient resolution of conventional seismic data is solved by using seismic inversion data, high-precision seismic sequence division method research is carried out in combination with seismic sequence stratigraphy, a favorable reservoir development area is searched in each sedimentary cycle, and a direction is pointed out for searching oil and gas resources.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploration, in particular to a high-precision seismic sequence division method driven by seismic inversion data. Background technique [0002] With the deepening of oil and gas exploration and development, it is more and more difficult to describe the deep carbonate reservoirs in detail. Aiming at the current technical difficulties, seismic sequence stratigraphy has obvious advantages. Seismic sequence stratigraphy mainly uses seismic, drilling and outcrop data to divide the chronostratigraphic framework of fillings in oil and gas basins, and then studies The stratigraphic superposition pattern and geometric shape of the sedimentary genetic units in each isochronic stratigraphic framework, combined with the interpretation of sedimentary environment and lithofacies paleogeography, pointed out the areas favorable for the development of oil source layers, reservoir layers, cap rocks and stratigr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/30G01V1/40
CPCG01V1/301G01V1/306G01V1/40G01V2210/6161G01V2210/6169G01V2210/6226G01V2210/64
Inventor 吕文正尹成王毓玮赵虎潘树林丁峰
Owner SOUTHWEST PETROLEUM UNIV
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