干旱区生态环境知识资源中心(Arid): Controls on reservoir quality in the paleogene Kalatar Formation of the southwestern region of the Tarim Basin, China

Arid

	Controls on reservoir quality in the paleogene Kalatar Formation of the southwestern region of the Tarim Basin, China
	Yang Haijun; Shen Jianwei; Wang Xu; Zhang Lijuan; Li Meng
来源期刊	Petroleum Science
ISSN	1672-5107
出版年	2011
卷号	8 期号:3 页码:302-315
英文摘要	The Paleogene Kalatar Formation is a main target for petroleum ex125 ploration in the southwestern region of the Tarim Basin (SWRTB) and a systematical summary of controls on reservoirs of high quality has important implications for this area.According to outcrop analysis, as well as core, and laboratory experiments based on theories of sedimentology, it can be inferred that the main pore types in the Kalatar Formation are moldic, vuggy, intercrystalline and interparticle pores, fractures, and mudstone microporosity, respectively.The foreshore in the shore-shelf depositional model is the most favorable target, wherein grainstone and dolomitized grainstone are characterized by high quality in a middle ramp subfacies of the carbonate ramp model.Diagenetic factors, such as micritization, cementation, compaction, neomorphism, silicification, and pyritization, are detrimental for reservoirs.At the same time, leaching and dolomitization can improve the quality of reservoirs.Permeability of reservoirs can be greatly improved by fractures, through which quality of reservoirs can be effectively enhanced.Concentration of CO_2, temperature, and humidity are affected by changes in climate, which can have an influence on depositional setting, composition and diagenesis of sediments, and eventually the properties of reservoirs.The hot and arid climate of the Paleogene was harmful to development of reservoirs, which is demonstrated in the contemporaneous diagenetic and epigenetic stages.Shallow and deep-burial diagenesis are closely related to the formation and the connate water, however these are rarely affected by paleo-climatic variation.There is possible erosion that mainly resulted from organic acid in relative well intervals according to indications of hydrocarbons in the early diagenetic stage.Fracture systems can be established when acidic fluids are emplaced during periods of uplift, by which pores can be effectively enlarged during the late diagenetic stages.
英文关键词	Kalatar Formation sedimentary facies diagenesis dolomitization fractures climatic conditions Tarim Basin
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Mineralogy
CSCD记录号	CSCD:4387769
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335118
作者单位	Yang Haijun, Exploration and Development Research Institute, Tarim Oilfield Company, Petroleum Company Limited, Korla, Xinjiang 841000, China.; Zhang Lijuan, Exploration and Development Research Institute, Tarim Oilfield Company, Petroleum Company Limited, Korla, Xinjiang 841000, China.; Li Meng, Exploration and Development Research Institute, Tarim Oilfield Company, Petroleum Company Limited, Korla, Xinjiang 841000, China.; Shen Jianwei, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Key Laboratory of Marginal Sea Geology of CAS, Guangzhou, Guangdong 841000, China.; Wang Xu, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Key Laboratory of Marginal Sea Geology of CAS, Guangzhou, Guangdong 841000, China.
推荐引用方式 GB/T 7714	Yang Haijun,Shen Jianwei,Wang Xu,et al. Controls on reservoir quality in the paleogene Kalatar Formation of the southwestern region of the Tarim Basin, China[J],2011,8(3):302-315.
APA	Yang Haijun,Shen Jianwei,Wang Xu,Zhang Lijuan,&Li Meng.(2011).Controls on reservoir quality in the paleogene Kalatar Formation of the southwestern region of the Tarim Basin, China.Petroleum Science,8(3),302-315.
MLA	Yang Haijun,et al."Controls on reservoir quality in the paleogene Kalatar Formation of the southwestern region of the Tarim Basin, China".Petroleum Science 8.3(2011):302-315.