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Device for interpreting fractured reservoir prediction

A technology for fractured reservoirs and reservoirs, which is applied in the field of automatic prediction and interpretation devices for fractured reservoirs, can solve problems such as insufficient quantification, and achieve the effects of improving accuracy, strong pertinence, and high resolution.

Active Publication Date: 2015-05-20
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

The description and prediction of some parameters have not yet reached the quantitative level, for example, sometimes only the relative development intervals and development areas of fractures can be described and predicted

Method used

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  • Device for interpreting fractured reservoir prediction
  • Device for interpreting fractured reservoir prediction
  • Device for interpreting fractured reservoir prediction

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Embodiment Construction

[0025] Next, the present invention will be described in detail below with reference to the accompanying drawings.

[0026] A device for predicting and explaining fractured reservoirs of the present invention, comprising:

[0027] —The developed non-Gaussian signal analysis method based on high-order statistics is suitable for the fault identification device of deep fractured reservoirs with low signal-to-noise ratio;

[0028] —Realize the extraction of nonlinear dynamic properties of seismic waves such as fractal, chaos, redundant dictionary and pseudo-entropy of the target layer. A seismic wave nonlinear dynamic characteristic analysis device for identifying fractured reservoirs;

[0029] —Developed a non-Gaussian signal analysis method based on high-order cumulants, carried out pseudo-slope and pseudo-kurtosis seismic attribute analysis, focused on amplifying weak abnormal seismic signals, and realized target processing of high-resolution seismic data and prediction of frac...

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Abstract

The invention discloses a device for interpreting fractured reservoir prediction. By the device, the seismic wave nonlinear dynamics properties, such as redundant dictionaries and chaos, of a fractured reservoir are computed; and by adopting a high order accumulation processing technology, non-gaussian seismic signals of the fractured reservoir can be processed and computed, so that the density aggregation projection analysis of acquired seismic attributes representing the fractured reservoir can be realized. According to the device, a computer is used for assisting in the completion of the interpretation of the fractured reservoir, so that favorable reservoir prediction files are formed. The device has the advantages of high computational efficiency, objective and accurate fractured reservoir interpretation results, and the like; and by the device, the accuracy of the reservoir interpretation and the seismic interpretation efficiency can be effectively improved.

Description

technical field [0001] The invention relates to the prediction and interpretation technology of ground fractured reservoirs, in particular to an automatic prediction and interpretation device for fractured reservoirs based on three-dimensional seismic data volumes. Background technique [0002] The geological conditions of fractured oil reservoirs are very complex, which is mainly reflected in the following aspects: complex structure and fault systems, fractured carbonate reservoirs in the Bohai Bay Basin generally experience multi-stage tectonic movements, and their structural insides are extremely complex. The burial depth and low resolution of seismic data make structural interpretation very difficult; there are many types of reservoir spaces, including fractures, pores, dissolved pores and caves, and more than a dozen types of reservoir spaces. The distribution of fractures is extremely heterogeneous, and wells It is more difficult to understand the degree of reservoir d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28G01V1/30G01V1/36
Inventor 王长江王志高穆星杨培杰张景涛马承杰邵卓娜毕俊凤罗红梅
Owner CHINA PETROLEUM & CHEM CORP
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