气候变化领域集成服务门户(CCPortal): Oilfield Water and Favorable Petroleum Exploration Targets for the Triassic Baikouquan Formation in the Slope of Mahu Depression, Junggar Basin

CCPortal

DOI	10.1155/2021/6699489
	Oilfield Water and Favorable Petroleum Exploration Targets for the Triassic Baikouquan Formation in the Slope of Mahu Depression, Junggar Basin
	Tao, Huifei; Qu, Yongqiang; Wu, Tao; Liu, Bingbing
通讯作者	Tao, HF (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou Ctr Oil & Gas Resources, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	1468-8115
EISSN	1468-8123
卷号	2021
英文摘要	In this paper, we attempt to clarify the relationships between oilfield water and hydrocarbon distribution of the Triassic Baikouquan Formation, in the slope zone of Mahu depression, Junggar Basin, NW China, based on oilfield water mineralization degrees, diagenesis analysis, formation pressure coefficients, burial history, and thermal evolution processes. The results show that the study area can be divided into four zones according to the mineralization degrees, that is, (1) zone I: NaHCO3 + Na2SO4 type water with residual intergranular pores, porosity usually higher than 10%. The strata of zone I are generally buried shallow and influenced by leaching from atmospheric precipitation. This area contains normal edge and bottom water and has normal formation pressure coefficients (average 1.12); (2) zone II: CaCl2 type water with mainly compaction diagenesis, porosity usually less than 7% and high formation pressure coefficients (average 1.41); (3) zone III: NaHCO3 + CaCl2 type oilfield water with mainly feldspar dissolution diagenesis, porosity usually greater than 9% and high formation pressure coefficients (average 1.53); and (4) zone IV: CaCl2 type water, mainly compacted diagenesis with a few intergranular and feldspar dissolved pores, and high formation pressure coefficients (average 1.58). The mineralization degrees of the oilfield water in zone II, III, and IV are relatively high. The appearance of NaHCO3 type water in the deeply buried areas is usually related to oil and gas charging. Therefore, within the strata, deeply-buried areas (e.g., zone III), where NaHCO3 type water has been developed, are favorable targets for oil and gas exploration.
关键词	ORIGIN
语种	英语
WOS研究方向	Geochemistry & Geophysics ; Geology
WOS类目	Geochemistry & Geophysics ; Geology
WOS记录号	WOS:000668982100001
来源期刊	GEOFLUIDS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254441
作者单位	[Tao, Huifei; Liu, Bingbing] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou Ctr Oil & Gas Resources, Lanzhou 730000, Peoples R China; [Qu, Yongqiang] Res Inst Petr Explorat & Dev, Northwest Branch PetroChina, Lanzhou 100083, Peoples R China; [Wu, Tao] PetroChina Xinjiang Oilfield Co, Res Inst Explorat & Dev, Karamay, Peoples R China; [Liu, Bingbing] Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Tao, Huifei,Qu, Yongqiang,Wu, Tao,et al. Oilfield Water and Favorable Petroleum Exploration Targets for the Triassic Baikouquan Formation in the Slope of Mahu Depression, Junggar Basin[J]. 中国科学院西北生态环境资源研究院,2021,2021.
APA	Tao, Huifei,Qu, Yongqiang,Wu, Tao,&Liu, Bingbing.(2021).Oilfield Water and Favorable Petroleum Exploration Targets for the Triassic Baikouquan Formation in the Slope of Mahu Depression, Junggar Basin.GEOFLUIDS,2021.
MLA	Tao, Huifei,et al."Oilfield Water and Favorable Petroleum Exploration Targets for the Triassic Baikouquan Formation in the Slope of Mahu Depression, Junggar Basin".GEOFLUIDS 2021(2021).