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四川盆地川西坳陷上三叠统须家河组储层各向异性地应力评价方法.pdf


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第 42 卷 第 4 期 2021 年 8 月
e Triassic Xujiahe Formation sandstones in the western Sichuan Depression are tight gas reservoirs some of
, - 2
which contain natural fractures particularly for the gas rich reservoir in the nd member of the Xujiahe Formation
( 2 ) - .
hereafter referred to as Xu Member with well developed vertical or high dip angle fractures Anisotropies of both
. -
rocks and horizontal principal stresses are thereby resulted To calculate in situ stresses in the naturally fractured

formations using conventional methods obtained in the isotropic formation may overestimate the horizontal principal stress
- . -
New assessment methods of in situ stresses in the anisotropic formations are studied in this paper The in situ stressess
and formation pressures in the Xinchang and Hexinchang gas fields are obtained based on measured data from wellbore
, , - .
influxes kicks mini frac t

四川盆地川西坳陷上三叠统须家河组储层各向异性地应力评价方法 来自淘豆网www.taodocs.com转载请标明出处.

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  • 时间2022-08-10