Prediction and accumulation conditions of dolomite reservoir in Xingang area

  • CHEN Zuhua ,
  • TANG Yong ,
  • WANG Haimei ,
  • CHEN Yuhan
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  • 1. PetroChina Research Institute of Petroleum Exploration & Development-Northwest, Lanzhou 730020, China; 2. Research Institute of Exploration and Development, PetroChina Dagang Oilfield Company, Tianjin 300280, China; 3. Bureau of Geophysics Prospecting Inc., CNPC, Zhuozhou 072750, Hebei, China

Online published: 2014-08-15

Abstract

Clastic rocks and dolomite are the main two reservoir types in Xingang area. The previous deep and wide exploration research is only for clastic reservoir. Research on dolomite reservoir characteristics and distribution is seldom, which restricts the dolomite reservoir exploration in this area. Through core analysis, logging and seismic data, based on the analysis of structure, deposition, source rock evaluation and single well reservoir, combined with data volume fusion technology, this paper carried out the prediction of dolomite reservoir distribution, and studied the oil and gas accumulation conditions of Es3, and then made clear the dolomite reservoir exploration potential of Es3 in Xingang area. The result shows that high-quality hydrocarbon source rocks developed in Es3 in Xingang area, oil and gas reservoir type belongs to primary self-storage, and the distribution area is large. A lot of fractures and dissolved pores are developed in the dolomite reservoir of Es35 , which provides favorable places for oil and gas enrichment. This understanding has certain reference value for the study of the same type of dolomite reservoir.

Cite this article

CHEN Zuhua , TANG Yong , WANG Haimei , CHEN Yuhan . Prediction and accumulation conditions of dolomite reservoir in Xingang area[J]. Lithologic Reservoirs, 2014 , 26(4) : 123 -129 . DOI: 10.3969/j.issn.1673-8926.2014.04.018

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