Present Day In Situ Stress Analysis in Shale Reservoir of Haiba Block, Southern Sichuan Basin, South China

doi:10.1155/2023/3249570

IMECH-IR > 流固耦合系统力学重点实验室

	Present Day In Situ Stress Analysis in Shale Reservoir of Haiba Block, Southern Sichuan Basin, South China
	Guo, Wei; Ju, Wei 1; Zheng, Majia 2; Shen WJ(沈伟军); Zhang, Jian 5; Liang, Pingping ; Wang, Shengyu 1; Hu, Haohao 1
发表期刊	GEOFLUIDS
	2023-02-22
卷号	2023 页码:3249570
ISSN	1468-8115
摘要	Natural gas from shale gas reservoirs has been an important contributor for reserve growth, deliverability construction, and profits growth in natural gas industry in the world. Hydraulic fracturing is commonly required in the shale gas commercial development, and thus understanding the present day in situ stress field is greatly significant for the hydraulic fracturing and efficient development in shale gas reservoirs. However, there are no systematic investigations on the present day in situ stress field in the Haiba Block from the Sichuan Basin, South China. In this study, the present day in situ stress orientations and magnitudes in shale reservoir of Haiba Block are investigated based on the well interpretations from borehole image log and geomechanical modeling. Then, the effects of stresses on hydraulic fracturing, horizontal wells, and natural fracture reactivation were discussed. The results indicate that the horizontal maximum principal stress (S Hmax) orientation is mainly in the NE SW trending, NW SE trending, and WNW ESE trending in the Haiba Block. The magnitudes of horizontal maximum and minimum principal stresses are 13.5 MPa similar to 85.5 MPa and 2.8 MPa similar to 31.6 MPa, respectively. In the Haiba Block, the differential stress is generally low in the northern part, which indicates that complex hydraulic fracture networks may be produced. While the natural fractures are generally stable under the present day in situ stress field. When the increase of pore pressure gradient is about 30 KPa/m, nearly all natural fractures in the Longmaxi Formation may be reactivated. The results can provide the insights into a better understanding of the present day in situ stress distribution so as to optimize perforation orientation, hydraulic fracturing design, and enhance gas production in shale gas reservoirs.
DOI	10.1155/2023/3249570
收录类别	SCI
语种	英语
WOS记录号	WOS:000943517600002
WOS研究方向	Geochemistry & Geophysics ; Geology
WOS类目	Geochemistry & Geophysics ; Geology
项目资助者	National Key Research and Development Project [2020YFA0711800] ; National Natural Science Foundation of China [12172362, 41971335] ; Natural Science Foundation of Jiangsu Province, China [BK20201349]
论文分区	Q3
力学所作者排名	1
RpAuthor	Shen, WJ (corresponding author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China. ; Shen, WJ (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/91868
专题	流固耦合系统力学重点实验室
作者单位	1.PetroChina, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China 2.China Univ Min & Technol, Sch Resources & Geosci, Xuzhou 221116, Peoples R China 3.PetroChina Southwest Oil & Gasfield Co, Chengdu 610000, Peoples R China 4.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China 5.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 6.PetroChina Southwest Oil & Gasfield Co, Shale Gas Inst, Chengdu 610051, Peoples R China
推荐引用方式 GB/T 7714	Guo, Wei,Ju, Wei,Zheng, Majia,et al. Present Day In Situ Stress Analysis in Shale Reservoir of Haiba Block, Southern Sichuan Basin, South China[J]. GEOFLUIDS,2023,2023:3249570.
APA	Guo, Wei.,Ju, Wei.,Zheng, Majia.,沈伟军.,Zhang, Jian.,...&Hu, Haohao.(2023).Present Day In Situ Stress Analysis in Shale Reservoir of Haiba Block, Southern Sichuan Basin, South China.GEOFLUIDS,2023,3249570.
MLA	Guo, Wei,et al."Present Day In Situ Stress Analysis in Shale Reservoir of Haiba Block, Southern Sichuan Basin, South China".GEOFLUIDS 2023(2023):3249570.

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