Editorial office of ACTA PETROLEI SINICA ›› 2008, Vol. 29 ›› Issue (4): 582-587.DOI: 10.7623/syxb200804020

• Oil Field Development • Previous Articles     Next Articles

A numerical algorithm for hydraulic fracturing process based on volumetric dislocation theory

OU YANG Zhihua1, YAO Gaohui1, LI Qiang2   

  1. 1. College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, China;
    2. Survey Institute of Changjiang Three Gorges Company Limited, Wuhan 443000, China
  • Received:2007-10-09 Revised:2007-12-29 Online:2008-07-25 Published:2010-05-21

基于体位错理论模拟水力压裂过程的数值方法

欧阳治华1, 姚高辉1, 李强2   

  1. 1. 武汉科技大学资源与环境工程学院, 湖北武汉, 430081;
    2. 长江三峡勘测研究院有限公司, 湖北武汉, 443000
  • 作者简介:欧阳治华,男,1952年12月生,1994获美国宾州州立大学地球与矿物工程学院博士学位,现为武汉科技大学副教授,主要从事岩石力学和计算机数值模拟方面的研究工作.E-mail:zxo102@gmail.com
  • 基金资助:
    湖北省教育厅科学研究重点项目(D200711002)资助.

Abstract: A new numerical algorithm based on the volumetric dislocation theory was formulated to simulate the hydraulic fracturing process.This algorithm can appropriately simulate the hydraulic fracturing process by coupling poroelastic behavior and some equations.The pressure data recorded at surrounding observation wells including a pumping well,rock hydraulic parameters and fracture geometric parameters were validated each other.The application of this algorithm in San Joaquin Valley of Central California showed that the numerical result of the algorithm agreed well with the pressure data recorded at the hydraulic fracturing wells.

Key words: hydraulic fracturing process, fracturing parameter, volumetric dislocation theory, pore pressure, numerical calculation model

摘要: 提出了一种新的基于体位错理论模拟水力压裂过程的数值算法.将体位错理论与滤失方程、流体动量平衡方程、流体质量平衡方程和系统质量平衡方程耦合,全面地模拟了水力压裂过程.并运用邻近观测井,包括压裂注入井的水压数据,相互验证了围岩物理水力学参数和裂缝几何参数.对加州中部San Joapuin河谷的油井压裂过程进行了模拟,计算结果与实测压力数据吻合良好.

关键词: 水力压裂过程, 压裂参数, 体位错理论, 孔隙压力, 数值模拟模型

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