气田开发

携砂液在裂缝中的流动阻力理论分析

展开
  • 1.中国地质大学地质过程与矿产资源国家重点实验室,北京 100083;2. 中国石化江汉油田采油工艺研究院,湖北 潜江 433100
黄志文(1978-),男,内蒙古锡林浩特人,博士研究生,主要从事油气田开发研究.E-mail:hzw@2001.cug.edu.cn.

收稿日期: 2005-07-29

  修回日期: 2005-09-26

  网络出版日期: 2005-12-20

THEORETICAL STUDY OF PROP-LADEN FLUID FLOW RESISTANCE IN HYDRAULIC FRACTURE

Expand
  • 1.State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences, Beijing 100083,China;2. Jianghan Oilfield Recovery Technological Research Institute, SINOPEC, Qianjiang 433100, China

Received date: 2005-07-29

  Revised date: 2005-09-26

  Online published: 2005-12-20

摘要

从压裂液在裂缝中的层流流动机理出发,考虑缝宽与缝长方向的压力梯度,对裂缝中的压裂液流速进行了计算。以固液两相流的流动理论为基础,运用托马斯定律对含砂压裂液的表观粘度进行了简化计算。考虑了砂粒与裂缝壁面的相互作用,从理论上建立了求解裂缝中含砂液流动阻力的计算模型,进而对不同含砂浓度、含砂粒径对压裂液流动性能的影响进行了分析,为计算压裂液在裂缝中的流动阻力提供了理论依据。

关键词: 携砂液; 裂缝; 流动阻力

本文引用格式

黄志文,李治平,赵忠健,岑芳 . 携砂液在裂缝中的流动阻力理论分析[J]. 天然气地球科学, 2005 , 16(6) : 784 -787 . DOI: 10.11764/j.issn.1672-1926.2005.06.784

Abstract

The paper studies the flow characteristics of prop-laden fluid in vertical hydraulic fracture. At first, the velocity of fluid flow can be derived from the mechanism of fracture fluid laminar flow and the distributed principle of the fluid pressure in the fracture. And then, the apparent viscosity of prop-laden fluid is calculated reduce based on the kinetic theory of prop-laden fluid together applying Thomas's law. Furthermore, by studying the interaction between the wall of fracture and proppant, we can setup the formula which presents the flow resistance of prop-laden fluid in hydraulic fracture, so that the capability of different proppant concentration and the grain size can be accessed. The paper provides a theoretical method for the further study in prop-laden fluid flow resistance in hydraulic fracture.

参考文献

  [1]Rizk M A, Elghobashi S E. On the motion of a spherical particle susupended in a turbulent flow near a plane wall[J].Phys Fluids,1995:28.
[2] 李爱芬,王士虎,王文玲.地层砂粒在液体中的沉降规律研究[J].油气地质与采收率,2001,8(1):70-74.
[3] 王鸿勋,张士诚.水力压裂设计数值计算方法[M].北京:石油工业出版社,1998.104-108.
[4] 张远君,王慧玉,张振鹏,等.两相流体动力学[M].北京:北京航空学院出版社,1987.185-187.
[5] 王宗贤,陈泽良,杨树合,等.流体相态研究在凝析气藏开发中的研究[J].天然气地球科学,2005,16(5):662-665.
[6] 傅旭东,王光谦,董曾南.低浓度固液两相流理论分析与管流数值计算[J].中国科学,2001,31(6):557-565.
[7] Powell R J, McCabe M A,  Slabaugh B F.Applications of a New, Efficient Hydraulic Fracturing Fluid System[R].SPE 56204.

文章导航

/