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Geographical physical characterization method for channel sand reservoir type oil and gas gathering conditions

A geophysical and sand oil technology, applied in the field of petroleum exploration, can solve the problems of only focusing on the detection of oil content of sand bodies, lack of vector characterization of structural ridges, and low identification accuracy of small faults.

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

Under the guidance of this theoretical understanding, the technical methods used by the current imported software are still difficult to meet the needs of channel sand reservoir exploration. It explains that some wells are far away from large faults, but they can still form reservoirs; second, although the structural ridges are recognized to transport oil and gas, there is no vector characterization method for structural ridges; Under the guidance of geological laws, it is not enough to use the spatial configuration relationship between sand bodies and faults to analyze the macro-favorable areas of oil and gas
The oil-bearing prediction of sand bodies does have certain difficulties and risks, and oil and gas detection technology alone is far from meeting the needs of exploration

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  • Geographical physical characterization method for channel sand reservoir type oil and gas gathering conditions
  • Geographical physical characterization method for channel sand reservoir type oil and gas gathering conditions
  • Geographical physical characterization method for channel sand reservoir type oil and gas gathering conditions

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[0027] In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments are listed below and described in detail in conjunction with the accompanying drawings.

[0028] Such as figure 1 as shown, figure 1 It is a flow chart of the geophysical characterization method for channel sand oil reservoir type oil and gas accumulation conditions of the present invention.

[0029] In step 101, a ridge representation is constructed.

[0030] Based on the principle of fluid potential, the structural gradient vector graphic representation technology is developed to reflect the fluctuations of the structure and intuitively indicate the position of the structural ridges that change spatially.

[0031] Firstly, the layers are finely interpreted, and the gradient attributes are calculated through the time-depth conversion to the depth domain. At the same time, according to the source rock development interval and locat...

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Abstract

The invention provides a geographical physical characterization method for channel sand reservoir type oil and gas gathering conditions. The geographical physical characterization method for the channel sand reservoir type oil and gas gathering conditions comprises the following steps of (1) constructing ridge characterization; (2) describing an oil source fracture net; (3) performing batched sand automatic track; (4) performing fracture and sand configuration analysis; and (5) comprehensively predicting favorable oil-bearing areas. By the geographical physical characterization method for the channel sand reservoir type oil and gas gathering conditions, reasonable characterization and comprehensive analysis can be carried out through an advanced mathematical algorithm and a signal processing means, macroscopic favorable oil-bearing areas are indicated, and a potential exploration target can be provided on the basis of geological analysis and comprehensive assessment of an oil and gas detection result.

Description

technical field [0001] The invention relates to the technical field of petroleum exploration, in particular to a geophysical characterization method for oil and gas accumulation conditions of channel sand reservoir type. Background technique [0002] A geophysical characterization method for oil and gas accumulation conditions was integrated and developed for shallow channel sand reservoirs with complex oil and gas enrichment rules, single oil and gas detection method, and strong multi-solution. Years of comprehensive research have recognized that channel sand bodies connected to faults on the background of inherited structural ridges are easy to form reservoirs. [0003] Aiming at the types of channel sand body reservoirs, predecessors put forward the theory of "carpet migration and accumulation", and pointed out a new understanding that "sand bodies, large oil-source faults and low-order oil-source faults are docked to control accumulation". Under the guidance of this the...

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Application Information

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IPC IPC(8): G06Q50/02
CPCG06Q10/04G06Q50/02
Inventor 王永诗毕俊凤刘书会屈冰杨培杰王庆华李敏邓玉珍邹文勇罗红梅张娟颜世翠徐仁
Owner CHINA PETROLEUM & CHEM CORP
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