|本期目录/Table of Contents|

[1]许雷,杨梅乙. 多裂缝诱导应力场与簇间距优化[J].内江师范学院学报(自然科学),2017,08:47-50.
 XU Lei,YANG Meiyi. Fractures Induced Stress Field and Inter-cluster Distance Optimization[J].,2017,08:47-50.
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 多裂缝诱导应力场与簇间距优化(PDF)

《内江师范学院学报(自然科学)》[ISSN:1671-1785/CN:51-1521/Z]

期数:
2017年第08期
页码:
47-50
栏目:
出版日期:
2017-09-05

文章信息/Info

Title:
 Fractures Induced Stress Field and Inter-cluster Distance Optimization
文章编号:
1671- 1785(2017)08-0047-05
作者:
 许雷 杨梅乙
 内江师范学院数学与信息科学学院, 四川 内江 641199
Author(s):
 XU Lei YANG Meiyi
 College of Mathematics and Information Science, Neijiang Normal University, Neijiang,Sichuan641199, China
关键词:
 分段多簇压裂位移不连续法簇间距优化
Keywords:
 staged multi-cluster fracturing displacement discontinuity method inter-cluster spacing optimization
分类号:
TE3
DOI:
10. 13603/j. cnki. 51-1621/z. 2017. 08. 011
文献标识码:
A
摘要:
 基于弹性力学基础理论和位移不连续理论,建立了裂缝诱导应力数学模型,同时考虑了井筒内压、原地应力、压裂液渗流效应、岩石温度变化和射孔作用对应力场的影响. 以获得最大应力反转区域为优化目标,形成一种新的簇间距优化方法.研究结果表明:诱导应力在最大水平主应力方向和最小水平主应力方向的改变量不同, 对最大主应力方向的影响更显著;裂缝间距越小,诱导应力影响越明显,中间裂缝宽度越小.
Abstract:
 Staged multi-cluster fracturing technology is the key to the development of unconventional resources technology. The accurate understanding of the stress field change around the wellhole in the fracturing process is of great significance in fracture spacing optimization and reinforcing the effect of reservoir stimulation. Fractures-induced stress mathematical model was established based on the theory of elastic mechanics and displacement discontinuity. The model also takes into the consid-
eration the effect of wellbore pressure, in-situ stress, fracturing fluid seepage effect, thermal stress and perforation upon the stress field so as to find the strongest stress reversal zone as its object for optimization and thus to form a new inter-cluster fac- ture spacing optimization method. The results show that: for induced stress, the number in the direction of maximum horizon- tal principal stress and minimum horizontal principal stress direction is different and stress change is higher in the direction of maximum horizontal principal stress; the smaller the fracture spacing is, the more obvious the induced stress influence will be, and the smaller of the crack width in the middle becomes.

参考文献/References

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备注/Memo

备注/Memo:
 收稿日期:2017-03-18
基金项目:大学生创新创业训练计划项目(X201673)
作者简介:许雷( 1986—) ,男,四川内江人,内江师范学院讲师,博士.研究方向:煤层气压裂增产
更新日期/Last Update: 2017-09-06