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Device for interpreting fractured reservoir prediction

A technology for predicting fractured reservoirs and reservoirs, applied in seismic signal processing and other directions, can solve problems such as inability to achieve quantification, and achieve the effects of improving accuracy, improving seismic interpretation efficiency, and high calculation efficiency

Active Publication Date: 2013-06-05
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 prediction and interpretation device for fractured reservoirs of the present invention, comprising

[0027] —The developed non-Gaussian signal analysis method based on high-order statistics is suitable for fault identification devices in 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. Seismic wave nonlinear dynamic characteristic analysis device for identifying fractured reservoirs;

[0029] —A non-Gaussian signal analysis method based on high-order cumulants was developed to analyze quasi-slope and quasi-kurtosis seismic attributes, focus on and amplify weak abnormal seismic signals, and realize target processing of high-resolution seismic data and prediction of fractured reser...

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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 prediction and interpretation technology for 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: the structural background and fault system are complex. Fractured carbonate reservoirs in the Bohai Bay Basin generally experience multi-stage tectonic movements, and their structural background is extremely complicated. The depth of burial and the low resolution of seismic data make structural interpretation very difficult. There are many types of reservoir space, including more than a dozen types of reservoir space in three categories: fractures, pores, and dissolution pores. The distribution of fractures is extremely heterogeneous. It is more difficult to understand the...

Claims

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Application Information

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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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