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Subtle lithologic reservoir transportation system representation method

A transport system and reservoir technology, applied in prediction, instrumentation, electrical and digital data processing, etc., can solve the problems of quantitative characterization of hidden transport systems, etc., and achieve the effect of improving the success rate of exploration wells

Inactive Publication Date: 2018-05-18
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Lithologic reservoirs of gravity flow origin are developed in the sags of continental rift basins, and the formation of lithologic traps requires the conduction of subtle transport systems. Static analysis of the conduction elements and the establishment of the concealed conduction system model, but the quantitative description of the concealed conduction system is still blank

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  • Subtle lithologic reservoir transportation system representation method
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Embodiment Construction

[0026] In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments are listed below and shown in the accompanying drawings in detail as follows.

[0027] Such as figure 1 as shown, figure 1 It is a flow chart of the characterization method for the concealed transport system of lithologic reservoirs of the present invention.

[0028] Step 101, describe the conduction elements of the concealed conduction system of the lithologic reservoir, and clarify the main conduction elements of the conduction system. For example, in the embodiment, the conduction elements of the concealed conduction system of the lithologic reservoir in front of the delta mainly include fractures , low-order faults, micro-faults and kerogen organic network; the core conduction elements that can be quantitatively characterized are preferred, such as the low-order faults and fractures in the embodiments, such as figure 2 show...

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Abstract

The invention provides a subtle lithologic reservoir transportation system representation method. The subtle lithologic reservoir transportation system representation method comprises the following steps of: 1, analyzing transportation elements to form a mechanism; 2, optimizing parameters for representing the transportation elements; 3, carrying out statistic on a transportation probability; 4, establishing a quantitative relationship between a single factor and the transportation probability; 5, dividing subtle transportation system origin types; and 6, establishing a transportation probability multiple linear regression model. The subtle lithologic reservoir transportation system representation method is capable of effectively predicting transportation performance of lithologic traps soas to evaluate oiliness of the traps and improve the exploratory well success rate, realizing transition, from qualitative description to quantitative prediction, of subtle transportation systems, predicting transportation ability of the subtle transportation systems, and providing powerful guiding function for lithologic trap oiliness prediction and well location deployment.

Description

technical field [0001] The invention relates to the technical field of oilfield development, in particular to a characterization method for the concealed transport system of lithologic oil reservoirs. Background technique [0002] The oil and gas transport system is regarded as the bridge and link connecting source rocks and traps, controlling the accumulation of oil and gas. Due to the complex factors affecting the transport system, its research level is far lower than that of source rocks and traps, and it is a weak link in the field of oil and gas geological research. There are many division schemes for the types of transporting systems, which can be roughly divided into the following categories. According to the different types of transporting elements, they can be divided into fault type, sand body type, unconformity type and composite type, and according to the specific combination of transporting elements into Net-carpet type, "T" type, ladder type, and fracture type...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q10/04G06Q50/02
CPCG06Q10/04G06Q50/02G06F30/20
Inventor 刘惠民贾光华徐希坤刘鑫金杨怀宇李晓梅于娟丽肖丽姜虹黄晖
Owner CHINA PETROLEUM & CHEM CORP