An evaluation method of shale reservoir crushability based on grey correlation analysis

LONG Zhangliang; WEN Zhentao; LI Hui; ZENG Xianwei

doi:10.13809/j.cnki.cn32-1825/te.2020.01.006

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An evaluation method of shale reservoir crushability based on grey correlation analysis

更新时间：2025-12-11

- An evaluation method of shale reservoir crushability based on grey correlation analysis
- Petroleum Reservoir Evaluation and Development Vol. 10, Issue 1, Pages: 37-42(2020)
- 作者机构：
  
  1. 中国石化西南油气分公司石油工程技术研究院,四川,德阳,618000
  2. 中国石化西南油气分公司勘探开发研究院,四川,成都,610000
  3. 中国石化西南油气分公司页岩气项目部,重庆,402160
  4. 四川省煤田地质局一四一地质队,四川,德阳,618000
- 作者简介：
- 基金信息：
- DOI：10.13809/j.cnki.cn32-1825/te.2020.01.006
  CLC： TE357
- Published：2020
- 稿件说明：
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LONG Zhangliang, WEN Zhentao, LI Hui, et al. An evaluation method of shale reservoir crushability based on grey correlation analysis[J]. Petroleum Reservoir Evaluation and Development, 2020, 10(1): 37-42.
DOI：

LONG Zhangliang, WEN Zhentao, LI Hui, et al. An evaluation method of shale reservoir crushability based on grey correlation analysis[J]. Petroleum Reservoir Evaluation and Development, 2020, 10(1): 37-42. DOI： 10.13809/j.cnki.cn32-1825/te.2020.01.006.

摘要

页岩储层的可压性评价是个复杂的系统工程。由于影响储层可压性的参数众多

包括储层基础地质参数（孔隙度、渗透率、含气量、有机碳含量等）

工程地质参数（岩石强度、弹性模量、泊松比、地层压力、地应力等）以及工程参数（水平段长、优质储层钻遇率、分段分簇、压裂规模等）多参数影响

且不同气田的主要影响因素不同

复杂工区光是寻找影响产能的主控因素都需要进行多轮先导试验进行分析评价。由于目前国内还没有一个统一、权威的页岩储层可压性评价方法

气田储层可压性评价任务迫在眉睫

因此

提出了一种基于灰色关联分析的页岩气储层可压性分析评价方法。其优点在于可快速地明确影响产量主控敏感参数。参数相关性强

可根据敏感参数预测压后产量

且随后期开发井数量越多预测精度越高。气田可以通过工程工艺优化调整得出的主控敏感参数

达到进一步提高压裂效果的目的。

Abstract

The crushability evaluation of shale reservoir is a complex system engineering. But as there are many parameters that affect the reservoir crushability

including the reservoir basic geological parameters

the rock mechanics

the formation pressure

the in-situ stress and the engineering technology

and the main influencing factors of different gas fields are different

multiple round of pilot tests are needed just to find out the main control factors affecting the productivity in complex working areas. Until now

there is no unified and authoritative evaluation method for shale reservoir crushability in China

it is extremely urgent to complete this task. Therefore

a method for shale gas reservoir crushability evaluation based on grey correlation analysis is proposed. This method has the advantages that it can quickly identify the main control sensitive parameters that affect the production. The correlation of the parameters is strong. And the production after fracturing can be predicted according to the sensitive parameters. With the increase of the number of developed wells

the prediction accuracy will be higher. In the gas field

the main control sensitive parameters can be adjusted by the optimization of engineering process

so as to further improve the fracturing effect.

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