Method and system for predicting initial productivity of shale formation after fracturing

A post-fracturing and formation technology applied in prediction, data processing applications, instruments, etc., which can solve problems such as low development efficiency, inability to quickly and effectively determine shale gas production capacity, and high cost, so as to improve development efficiency and reduce exploration and development costs , Simplify the effect of influencing parameters

Active Publication Date: 2021-03-26
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
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Problems solved by technology

[0005] However, the above productivity evaluation methods are high in cost, low in development efficiency, and cannot quickly and effectively determine shale gas productivity

Method used

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  • Method and system for predicting initial productivity of shale formation after fracturing
  • Method and system for predicting initial productivity of shale formation after fracturing
  • Method and system for predicting initial productivity of shale formation after fracturing

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Embodiment Construction

[0048] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0049] Such as figure 1 Shown is a flow chart of a method for predicting the initial production capacity of a shale formation after fracturing according to an embodiment of the present invention, the following reference figure 1 The present invention will be described in detail.

[0050] The first step is step S110 of establishing a production capacity model, establishing an initial production capacity mode...

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Abstract

The invention discloses a method and a system used for predicting initial productivity after shale formation fracturing. The method includes: a productivity model establishment step, wherein a model of the initial productivity after shale formation fracturing is established according to geological sweet-spot parameters and engineering sweet-spot parameters; and an initial-productivity determination step, wherein the initial productivity after shale formation fracturing is determined according to the model of the initial productivity. According to the method, quickly predicting the initial production productivity of a shale gas well after fracturing is completed is facilitated, influence parameters of the initial productivity after shale formation fracturing are simplified, exploration and development costs of a shale gas formation are reduced, and development efficiency of the shale formation is improved.

Description

technical field [0001] The invention belongs to the technical field of petroleum exploration and development, and in particular relates to a method and system for predicting the initial production capacity after fracturing of shale formations. Background technique [0002] Shale formations are usually ultra-low porosity and ultra-low permeability formations. The initial production capacity after fracturing is not only affected by the geological conditions of the formation, such as physical properties, gas content, and kerogen properties, but also by the scale of fracturing and the formation after fracturing. The impact of property changes, such as the total liquid volume pumped into the formation during the fracturing process, the proppant performance and the brittleness of the formation. [0003] Currently, shale gas productivity evaluation methods include empirical method, analytical method and numerical simulation method. Some people based on the three-porosity and dual-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06
Inventor 廖东良刘双莲李永杰张元春刘江涛
Owner CHINA PETROLEUM & CHEM CORP
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