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页岩储层水平最小主应力实测与分布规律

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页岩储层水平最小主应力实测与分布规律

https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_wanfang_journals_sydxxb202105009

页岩储层水平最小主应力实测与分布规律

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Full title

页岩储层水平最小主应力实测与分布规律

Author / Creator

孙东生 , 禚喜准 , 淡永 , 李阿伟 , 杨跃辉 and 陈群策

Publisher

中国地质科学院地质力学研究所,北京100081

Journal title

中国石油大学学报（自然科学版）, 2021-10, Vol.45 (5), p.80-87

Language

Chinese

Formats

Articles

Publication information

Publisher

中国地质科学院地质力学研究所,北京100081

More information

Scope and Contents

Contents

TE122.14; 水平最小主应力是非常规油气储层压裂设计、压裂缝高控制和压裂后效果评价的重要基础数据.利用自主研发的深孔水压致裂原位地应力测试系统,对黔东南地区寒武系牛蹄塘组泥页岩储层进行地应力实测,获取深度1179～1188 m泥质粉砂岩层段水平最小主应力为24.9～25.3 MPa,1207～1208 m灰岩层段的水平最小主应力为21.4 MPa.结合公开报道的泥页岩储层地应力测量结果,定量评价泥页岩储层内水平最小地应力分布规律.结果表明:泥页岩储层内地应力明显受岩石的矿物含量控制,随着黏土等塑性矿物含量的增加,水平最小主应力明显增大;在区域构造应力场作用下,泥页岩层的水平最小主应力比砂岩或灰岩等脆性夹层高4～15 MPa;对于深层页岩气,应选择脆性矿物含量高的水平最小主应力低值区作为...

Alternative Titles

Full title

页岩储层水平最小主应力实测与分布规律

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Author / Creator

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Primary Identifiers

Record Identifier

TN_cdi_wanfang_journals_sydxxb202105009

Permalink

https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_wanfang_journals_sydxxb202105009

Other Identifiers

ISSN

1673-5005

DOI

10.3969/j.issn.1673-5005.2021.05.009

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