Thermochemical sulphate reduction can improve carbonate petroleum reservoir quality

doi:10.1016/j.gca.2017.11.032

	Thermochemical sulphate reduction can improve carbonate petroleum reservoir quality
	Jiang, Lei 1,2,3,4; Worden, Richard H.5; Yang, Changbing 3
刊名	GEOCHIMICA ET COSMOCHIMICA ACTA
	2018-02-15
卷号	223 页码:127-140
关键词	Mesogenetic dissolution Thermochemical sulphate reduction Carbonate reservoir Fluid inclusion Fluid pressure
ISSN号	0016-7037
DOI	10.1016/j.gca.2017.11.032
文献子类	Article
英文摘要	Interest in the creation of secondary pore spaces in petroleum reservoirs has increased because of a need to understand deeper and more complex reservoirs. The creation of new secondary porosity that enhances overall reservoir quality in deeply buried carbonate reservoirs is controversial and some recent studies have concluded it is not an important phenomenon. Here we present petrography, geochemistry, fluid inclusion data, and fluid-rock interaction reaction modeling results from Triassic Feixianguan Formation, Sichuan Basin, China, core samples and explore the relative importance of secondary porosity due to thermochemical sulphate reduction (TSR) during deep burial diagenesis. We find that new secondary pores result from the dissolution of anhydrite and possibly from dissolution of the matrix dolomite. Assuming porosity before TSR was 16% and the percentage of anhydrite was 6%, modelling shows that, due to TSR, 1.6% additional porosity was created that led to permeability increasing from 110 mD (range 72-168 mD within a 95% confidence interval) to 264 mD (range 162-432 mD within a 95% confidence interval). Secondary porosity results from the density differences between reactant anhydrite and product calcite, the addition of new water during TSR, and the generation of acidity during the reaction of new H2S with the siderite component in pre-existing dolomite in the reservoir. Fluid pressure was high during TSR, and approached lithostatic pressure in some samples; this transient overpressure may have led to the maintenance of porosity due to the inhibition of compactional processes. An additional 1.6% porosity is significant for reserve calculations, especially considering that it occurs in conjunction with elevated permeability that results in faster flow rates to the production wells. (C) 2017 Elsevier Ltd. All rights reserved.
WOS关键词	TRIASSIC FEIXIANGUAN FORMATION ; JURASSIC SMACKOVER FORMATION ; SECONDARY POROSITY CREATION ; NORTHEASTERN SICHUAN BASIN ; DEEPLY BURIED CARBONATES ; PUGUANG GAS-FIELD ; FLUID INCLUSION ; EASTERN SICHUAN ; MESOGENETIC DISSOLUTION ; DOLOMITE RESERVOIR
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000424973200008
资助机构	Natural Science Foundation of China(41402132) ; Natural Science Foundation of China(41402132) ; Natural Science Foundation of China(41402132) ; Natural Science Foundation of China(41402132) ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Science and Technology Major Project(2017ZX05008-004) ; National Science and Technology Major Project(2017ZX05008-004) ; National Science and Technology Major Project(2017ZX05008-004) ; National Science and Technology Major Project(2017ZX05008-004) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; Chinese Scholarship Council (CSC)(201704910007) ; Chinese Scholarship Council (CSC)(201704910007) ; Chinese Scholarship Council (CSC)(201704910007) ; Chinese Scholarship Council (CSC)(201704910007) ; Natural Science Foundation of China(41402132) ; Natural Science Foundation of China(41402132) ; Natural Science Foundation of China(41402132) ; Natural Science Foundation of China(41402132) ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Science and Technology Major Project(2017ZX05008-004) ; National Science and Technology Major Project(2017ZX05008-004) ; National Science and Technology Major Project(2017ZX05008-004) ; National Science and Technology Major Project(2017ZX05008-004) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; Chinese Scholarship Council (CSC)(201704910007) ; Chinese Scholarship Council (CSC)(201704910007) ; Chinese Scholarship Council (CSC)(201704910007) ; Chinese Scholarship Council (CSC)(201704910007) ; Natural Science Foundation of China(41402132) ; Natural Science Foundation of China(41402132) ; Natural Science Foundation of China(41402132) ; Natural Science Foundation of China(41402132) ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Science and Technology Major Project(2017ZX05008-004) ; National Science and Technology Major Project(2017ZX05008-004) ; National Science and Technology Major Project(2017ZX05008-004) ; National Science and Technology Major Project(2017ZX05008-004) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; Chinese Scholarship Council (CSC)(201704910007) ; Chinese Scholarship Council (CSC)(201704910007) ; Chinese Scholarship Council (CSC)(201704910007) ; Chinese Scholarship Council (CSC)(201704910007) ; Natural Science Foundation of China(41402132) ; Natural Science Foundation of China(41402132) ; Natural Science Foundation of China(41402132) ; Natural Science Foundation of China(41402132) ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Science and Technology Major Project(2017ZX05008-004) ; National Science and Technology Major Project(2017ZX05008-004) ; National Science and Technology Major Project(2017ZX05008-004) ; National Science and Technology Major Project(2017ZX05008-004) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; scholarships under the China Postdoctoral Science Foundation award for International Postdoctoral Exchange Fellowship Program(20150035) ; Chinese Scholarship Council (CSC)(201704910007) ; Chinese Scholarship Council (CSC)(201704910007) ; Chinese Scholarship Council (CSC)(201704910007) ; Chinese Scholarship Council (CSC)(201704910007)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/82707]
专题	中国科学院地质与地球物理研究所
通讯作者	Jiang, Lei
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.Univ Texas Austin, Jackson Sch Geosci, Bur Econ Geol, Austin, TX 78713 USA 4.Yale Univ, Dept Geol & Geophys, POB 6666, New Haven, CT 06511 USA 5.Univ Liverpool, Dept Earth Ocean & Ecol Sci, 4 Brownlow St, Liverpool L69 3GP, Merseyside, England
推荐引用方式 GB/T 7714	Jiang, Lei,Worden, Richard H.,Yang, Changbing. Thermochemical sulphate reduction can improve carbonate petroleum reservoir quality[J]. GEOCHIMICA ET COSMOCHIMICA ACTA,2018,223:127-140.
APA	Jiang, Lei,Worden, Richard H.,&Yang, Changbing.(2018).Thermochemical sulphate reduction can improve carbonate petroleum reservoir quality.GEOCHIMICA ET COSMOCHIMICA ACTA,223,127-140.
MLA	Jiang, Lei,et al."Thermochemical sulphate reduction can improve carbonate petroleum reservoir quality".GEOCHIMICA ET COSMOCHIMICA ACTA 223(2018):127-140.