西南石油大学学报(自然科学版) ›› 2004, Vol. 26 ›› Issue (1): 51-53.DOI: 10.3863/j.issn.1000-2634.2004.01.015

• 石油与天然气工程 • 上一篇    下一篇

一种计算裂缝砂卡位置的新方法

王正茂1 李治平1 李允1 王嘉淮2 赵志辉2 彭少涛2
  

  1. (1.西南石油学院,四川 南充 637001; 2.新疆试油公司)
  • 收稿日期:2003-01-10 修回日期:1900-01-01 出版日期:2004-02-20 发布日期:2004-02-20
  • 通讯作者: 王正茂

A NEW METHOD CALCULATING THE POSITION O SAND JAM IN THE FRACTURE

WANG Zheng-mao1 LI Zhi-ping1 LI Yun1 et al.

  

  1. (Southwest Petroleum Institute, Nan-chong Sichuan 637001, China)
  • Received:2003-01-10 Revised:1900-01-01 Online:2004-02-20 Published:2004-02-20
  • Contact: WANG Zheng-mao

摘要: 在压裂施工作业过程中有可能在裂缝中形成砂卡,砂卡一旦形成必然会影响到压裂施工压力,为了准确计算裂缝中砂卡的位置,可以对压裂施工压力进行分析。通过做出压裂施工压力和施工时间的双对数曲线,可以确定砂卡发生后的压力响应数据,将这些数据进行线性回归,求得直线段斜率,然后根据求得的斜率和相关的裂缝参数,即可求出裂缝中砂卡的位置。这对于正确指导压裂施工作业以及获得优质裂缝具有重要意义。

关键词: 裂缝, 压裂施工压力, 砂卡, 双对数曲线

Abstract: Sands can be jammed the fracture during the fracturing construction. If sands jam is effective, it can affect fracturing pressure. In order to exactly calculate the position of sands jam in the fracture, fracturing pressure can be analyzed. By drawing the double logarithmic curves of fracturing pressure and con
struction time, the data of pressure response could be obtaine after sands jam happened. By their linear regression, the slop of straight-line segment could be obtained. Then, the positio of sands jam in the fracture was calculated by the slope and correlative fracture parameter. It is very significant to correctly di
rect fracturing construction and obtain fracture with high quality.

Key words: fracture, fracturing pressure, sands jam, double logarithmic curve

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