新疆石油地质

新疆石油地质 ›› 2006, Vol. 27 ›› Issue (2): 229-231.

• 应用技术 • 上一篇    下一篇

压裂单裂缝三维模型的建立与应用

李洪玺1, 刘全稳1, 汪学华2   

  1. 1.西南石油学院油气藏及地质开发工程国家重点实验室, 成都 610500;
    2.中国石油新疆油田分公司石西油田作业区, 新疆克拉玛依 834000
  • 收稿日期:2005-07-01 修回日期:2005-07-01 出版日期:2006-04-01 发布日期:2020-10-30
  • 作者简介:李洪玺(1978-) , 男, 黑龙江海伦人, 在读博士研究生, 油气田开发,(Tel) 028-83033718(E-mail) lhx168swpi@yahoo.com.cn.

The Establishment and Application of 3D Model for Hydraulically Created Single Fracture

LI Hong-xi1, LIU Quang-wen1, WANG Xue-hua2   

  1. 1. State Key Laboratory of Oil-Gas Reservoir Geology and Development Engineering, Southwest Petroleum Institute, Chengdu, Sichuan 610500, China;
    2. Shixi Field Operation District, Xinjiang Oilfield Company, Petro China, Karamay, Xinjiang 834000, China
  • Received:2005-07-01 Revised:2005-07-01 Online:2006-04-01 Published:2020-10-30

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摘要： 矿场通常对单裂缝使用二维裂缝模型, 但压裂过程中, 裂缝长度、高度和宽度不断变化, 影响着压裂设计的精度, 设计结果与实际压裂结果有很大的误差。为此, 按裂缝上下都穿层和上下都不穿层两种情况, 推导并建立了压裂裂缝三维数学模型, 分别介绍控制裂缝三维延伸的连续性方程、压裂液流动压降方程、宽度方程以及模型的解法。分析了裂缝长度、裂缝方位等对油藏整体压裂开发效果的影响, 并对1 口多层压裂井的裂缝延伸进行了模拟计算, 验证了模型的正确性。

关键词: 压裂, 裂缝, 三维模型

Abstract: 2D fractured model is generally used for field single fracture created by hydraulic fracturing process. The varied length, height and width of the fracture may affect the accuracy of the fracturing design, causing big difference between designed result and real fracturing effect. This paper deducts and establishes related 3D mathematic model in terms of extending and non-extending upper and lower layers, including presentation of equations of controlling 3D extending of fracture, fracturing fluid flowing pressure drawdown, fractured width and model interpretation. Also, this paper presents the effect of length and orientation of fracture on the reservoir development effectiveness by hydraulic fracturing process and simulation calculation of fracture extending for a multilayer fracturing well. The validity of the model has been proved.

Key words: hydraulic fracturing, fracture, 3D model

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