Method and system for predicting plane distribution of different reservoirs

A plane distribution and reservoir technology, applied in the field of geophysical exploration, can solve the problem of inability to accurately predict and distinguish different types of reservoirs, reservoirs and non-reservoirs, etc., achieve accurate and reliable prediction and distinction results, and use less materials , the effect of structural stability

Pending Publication Date: 2021-06-11
成都捷科思石油天然气技术发展有限公司 +1
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Problems solved by technology

[0008] In order to overcome the deficiencies of the prior art, the present invention provides a method and system for predicting the plane distribution of different reserv

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  • Method and system for predicting plane distribution of different reservoirs
  • Method and system for predicting plane distribution of different reservoirs
  • Method and system for predicting plane distribution of different reservoirs

Examples

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Example Embodiment

[0048] Example 1

[0049] Such as figure 1 As shown, a method of predicting a flat distribution of different reservoirs, including the following steps:

[0050] S1, using seismic data for extraction and inversion of reservoirs, obtaining a plurality of seismic attribute data body, and is preferably used to normalize the seismic attribute data body, and normalize the plurality of preferred seismic attribute data. Processing, obtaining a normalized seismic attribute data body;

[0051] S2, after the normalized seismic attribute data body extracts the attribute value corresponding to the different reservoirs on the well point, the well reservoir measuring board is established, and the shape boundary of different reservoirs is determined on the reservoir module. The reservoir type on the well is calculated to obtain a waveform similarity coefficient of the target layer on the relevant seismic attribute data body to obtain similarity data of different reservoir types;

[0052] S3, afte...

Example Embodiment

[0111] Example 2

[0112] Such as figure 1 As shown, a system that predicts different reservoir plane distribution, including the following modules:

[0113] Normalization Module: Used to use seismic data to extract and inverse the reservoir type of reservoir, obtain multiple seismic attribute data body, and preferably for seismic attribute data body, for multiple preferred seismic attribute data Normalization treatment separately, resulting in a normalized seismic attribute data;

[0114] Similarity Coefficient Generation Module: After the attribute value corresponding to the different reservoirs on the normal seismic attribute data body extracting the different reservoirs, different reservoirs are determined on the reservoir module. The shape boundary is calculated according to the reservoir type on the well on the associated seismic attribute data, and the similarity coefficient data of different reservoir type types is obtained.

[0115] Planning generation module: After using...

Example Embodiment

[0118] Example 3

[0119] Such as figure 1 As shown, the working step is made, and the present embodiment is a predictive work of deep shale gas reservoirs in Hai Xi Long Maxi Group in a rock gas exploration area in Sichuan.

[0120] Extract three types of attribute data related to porosity, crack, reservoir production capacity, according to the actual situation, expert experience and relatively mature geophysical technology according to the time and computer calculation ability of the project, using three-dimensional overhead sets and After the overlay seismic data, the porosity data body, P-wave anisotropic data body, Poisson-than Digital body, represents three types of porosity, cracks, and reservoir production capacity associated with it respectively. Using the three-dimensional lamination seismic data and the logging data of each well, the calibration of the segment of the zone and its related top, the interpretation of the bottom, and the interpretation of the underlying pos...

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Abstract

The invention discloses a method and a system for predicting plane distribution of different reservoirs. The method comprises the following steps of S1, acquiring a normalized seismic attribute data volume by using seismic data; S2, processing the normalized seismic attribute data volume to obtain similarity coefficient data of different reservoir types; and S3, performing reservoir probability data calculation on the attribute data of each CDP point on the plane by using the appearance boundaries of different reservoirs and the similarity coefficient data, performing color component normalization and assignment on the data subjected to reservoir probability data calculation, performing color fusion, and displaying. and obtaining a planar graph for reservoir prediction and evaluation. According to the method, a problem that different types of reservoirs, reservoirs and non-reservoirs cannot be accurately predicted and distinguished in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of geophysical exploration, in particular to a method and system for predicting the plane distribution of different reservoirs. Background technique [0002] In the field of geophysical exploration, after acquiring seismic data through conventional seismic acquisition, it is necessary to interpret the seismic data and carry out the corresponding reservoir prediction and interpretation process. In the process of reservoir prediction and interpretation, it is necessary to analyze the relevant logging data, and carry out relevant attribute extraction and inversion calculations on the seismic data, and then use the logging data, extracted or inverted attribute data to perform qualitative analysis on each other And quantitative analysis, identify the possible reservoir development areas and intervals, so as to complete the reservoir prediction work. [0003] As we all know, there are different types of reservoir...

Claims

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Application Information

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IPC IPC(8): G01V1/40G01V1/50
CPCG01V1/40G01V1/50G01V2210/624G01V2210/74
Inventor 于靖贺燕冰郑健陈珂磷井翠聂舟黄君杨阳张晓丹罗虎
Owner 成都捷科思石油天然气技术发展有限公司
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