Application of Mango’s light hydrocarbon parameters in Dawanqi Oilfield,Tarim Basin,China

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  • 1.State Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum,Beijing 102249,China;
    2.College of Geosciences,China University of Petroleum,Beijing 102249,China;
    3.Key Laboratory of Exploration Technologies for Oil and Gas Resources,Ministry of Education,Yangtze University,
    Wuhan 430100,China;4.Xinjiang Oilfield Company,CNPC,Karamay 834000,China

Received date: 2015-11-25

  Revised date: 2016-03-21

  Online published: 2019-09-12

Abstract

Oil samples from Dawanqi Oilfield in the Tarim Basin,NW China,some of which have been biodegraded to different extents,were analyzed in order to investigate the effect of biodegradation on Mango’s light hydrocarbon (LH) parameters.According to the analytical results of Mango’s LH parameters,Dawanqi oils show characteristics of terrigenous organic matter input and belong to the same oil family.With increasing degree of biodegradation,Mango’s LH parameters from Dawanqi crude oils such as the values of K1,N61/N51 and (N61+N51)/(P2+P3+N2) decrease,and K2 values increase.In non-biodegraded oils,DW1 block are characterized by high values of N6 1/N2 and P2/P3,and low values of DMCYC5/MCYC6 and MCYC5/CYC6,while DW105-west block are characterized by low values of N61/N2 and P2/P3,and high values of DMCYC5/MCYC6 and MCYC5/CYC6,which implied that there are at least two oil-charging orientations from the north and west of the study area.

Cite this article

Yang Lu, Zhang Chun-ming, Li Mei-jun, Bian Long, Yu Xing . Application of Mango’s light hydrocarbon parameters in Dawanqi Oilfield,Tarim Basin,China[J]. Natural Gas Geoscience, 2016 , 27(8) : 1524 -1531 . DOI: 10.11764/j.issn.1672-1926.2016.08.1524

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