Volcanic reservoir characteristics and hydrocarbon genesis of Jiamuhe formation in Jinlong 2 wellblock, Junggar Basin. (2nd October 2018)

• Record Type: Journal Article
• Authors: Zhang, Xilong; Xia, Yanqing; Zhang, Yan; Chen, Yongxin; Zhang, Gaoqing; Gao, Wenqiang
• Is Part Of: Petroleum science and technology. Volume 36:Number 19(2018)
• Page Start: 1516
• Page End: 1523
• Publication Date: 2018-10-02
• Subjects: hydrocarbon genesis -- jiamuhe formation -- jinlong 2 wellblock -- Junggar Basin -- volcanic reservoir characteristics; Liquid fuels -- Periodicals; Petroleum -- Periodicals; 665.505
• DOI: 10.1080/10916466.2018.1471486
• Languages: English
• ISSNs: 1091-6466

Abstract

Abstract: Due to deeper buried, multi-stage tectonic influences, rapid changing, and unclear originate of oil and gas in Jinlong 2 wellblock, we analyzed the volcanic reservoir characteristics and the genesis of hydrocarbon by cores, thin slices, loggings, physical properties, oil testing data, and carbon isotopes. Results demonstrated that the major lithology were pyroclastic rocks and lavas, the reservoir was generally poor and strongly homogeneous, the main reservoir space were primary pores, and the favorable reservoir mainly developed in the pyroclastic rocks of the third phase. Furthermore, the results of carbon isotopes indicated that the crude oil and dissolved gas originated from Fengcheng formation, while the condensate gas derived from Jiamuhe formation.