Method for rapidly evaluating shale oil resources

An evaluation method and shale oil technology, applied in the field of petroleum exploration, can solve the problem of not being able to fully adapt to unconventional oil and gas resources, and achieve the effect of reasonable design

Active Publication Date: 2019-04-16
PETROCHINA CO LTD
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Problems solved by technology

The second member of Kongong in the Cangdong sag in the target study area is one of the main shale oil development areas in the Bohai Bay Basin. Shale oil is different from conventional oil and gas. After hydrocarbons are generated, they are mainly ac

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  • Method for rapidly evaluating shale oil resources
  • Method for rapidly evaluating shale oil resources

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] see Figure 1~2 , a method for rapid evaluation of shale oil resources, comprising the following steps

[0022] Step A, establishing an evolution chart of source rock generation, expulsion, and residue, and calculating the total oil generation, residual hydrocarbon amount, and hydrocarbon expulsion amount and their distribution in the sag;

[0023] Step B, obtain different key parameter values, and use the method of quality oil content to calculate the...

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Abstract

The invention discloses a method for rapidly evaluating shale oil resources. The method comprises the following steps of A, establishing a evolutionary graph of the generating, discharging and remaining of hydrocarbon source rock by a kerogen swelling experiment simulating method, and calculating the sinking total oil generating amount, the hydrocarbon remaining amount and the hydrocarbon discharging amount; B, selecting the shale area, the effective thickness, the density, a pyrolysis S1, a light hydrocarbon recovery coefficient, a shale oil adsorption coefficient and other effective parameters, and calculating the amount of the shale oil resource by adopting a mass oil content method. The invention aims to provide the method for rapidly evaluating shale oil resources. The method is suitable for calculation of the amount of the shale oil, and is used for determining the distribution rule of the shale oil, determining the distribution range of the shale oil, providing a support for improving the exploration effect, and providing a feasible technical method for evaluating the shale oil resource more objectively and accurately, and particularly evaluating a beneficiation region of the shale oil and determining beneficial geological conditions of the beneficiation region.

Description

technical field [0001] The invention relates to a shale oil evaluation method, in particular to a shale oil resource rapid evaluation method, belonging to the technical field of petroleum exploration. Background technique [0002] Shale oil is an important unconventional oil and gas resource that exists in mud shale. With the continuous increase in energy demand and the rise of unconventional oil and gas around the world, scholars at home and abroad have continued to study shale oil resource evaluation methods. strengthen. The second member of Kongkong in the Cangdong sag in the target study area is one of the main shale oil development areas in the Bohai Bay Basin. Shale oil is different from conventional oil and gas. After hydrocarbons are generated, they mainly accumulate in situ or through short-distance migration. Continuously, affected by factors such as shale oil development characteristics and heterogeneity, traditional resource evaluation methods cannot fully adapt...

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Application Information

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IPC IPC(8): G01V9/00
CPCG01V9/00G01V9/005
Inventor 蒲秀刚姜文亚王娜肖敦清孙超囡韩文中林常梅代昆
Owner PETROCHINA CO LTD
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