评价页岩气体积改造人工缝网效果的方法

By combining geomechanical and microseismic monitoring data, and establishing a model using an integrated artificial fracture network model, fracturing construction parameters are optimized, improving the targeting of fracturing design and the accuracy of development effect prediction. This enables highly accurate evaluation of the artificial fracture network effect in shale gas volume modification, solving the technical problems that are difficult to evaluate in existing technologies, and forming an effective support fracture network system.

CN117113610BActive Publication Date: 2026-07-17CHINA NAT PETROLEUM CORP +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA NAT PETROLEUM CORP
Filing Date
2022-05-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively evaluate the effects of complex artificial fracture networks after shale gas volume modification, as they are costly and have low precision, failing to meet the needs of shale gas reservoir development.

Method used

By employing geomechanics and integrated technology, combining a three-dimensional geomechanical model and microseismic monitoring data, an integrated artificial fracture network model was established. Through tracer monitoring data analysis, the main influencing factors of the artificial fracture network were determined, fracturing construction parameters were optimized, and the evaluation accuracy and prediction accuracy were improved.

Benefits of technology

This approach maximizes the benefits of low-cost, high-precision shale gas reservoir development, establishes an effective supporting fracture network system, and improves the targeting of fracturing design and the accuracy of development effect prediction.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种评价页岩气体积改造人工缝网效果的方法,包括如下步骤:a、综合地质模型和地质力学模型,并用微地震监测数据建立匹配验证,建立一体化人工缝网模型,通过建立的人工缝网模型得到人工缝网相关参数;b、综合示踪剂监测数据和数据分析,建立支撑人工缝网的一体化人工缝网评价模型;c、人工缝网评价模型结合人工缝网相关参数和压裂改造工程参数,确定人工缝网主要影响因素,评价人工缝网支撑效果。本发明可以更精确描述人工缝网,以地质力学及一体化技术为基础,基于目标区块地质模型,优化压裂施工参数,提升压裂设计的针对性、匹配性和开发效果预测的准确性,实现页岩储层开发效益最大化。
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