Lithologic Reservoirs ›› 2011, Vol. 23 ›› Issue (4): 12-19.doi: 10.3969/j.issn.1673-8926.2011.04.003

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Evaluation methods for unconventional hydrocarbon resources

GUO Qiulin1， ZHOU Changqian1， CHEN Ningsheng1， HU Junwen1， XIE Hongbing 1，2   

  1. 1. Research Institute of Petroleum Exploration & Development， PetroChina， Beijing 100083， China； 2. China University of Geosciences， Beijing 100083， China
  • Online:2011-08-20 Published:2011-08-20

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Abstract:

The unconventional hydrocarbon resources are different fromthe conventional hydrocarbon resources in the aspects of accumulation mechanism, occurrence, distribution, exploration and development method, etc. As the strategic supplements of conventional resources, the unconventional hydrocarbon resources are becoming highly valued. But now, an effective evaluation systemis not yet built up for the evaluation of unconventional hydrocarbon resources in our country. Based on the accumulation mechanism and distribution characteristics of the unconventional hydrocarbon resources, five evaluation methods for unconventional hydrocarbon resources are introduced, including: analogy method, the major method of USGS; stochastic simulation method, the new developed method of USGS; reserve estimation method for single well, the typical statistical method; prediction method of hydrocarbon spatial distribution, the special statistical method; prediction method of continuous tight sandstone gas reservoirs, the special genetic method. These evaluation methods provide theoretical basis for the evaluation of the unconventional hydrocarbon resources and the newnational hydrocarbon resource.

Key words: multilayer edge water reservoir, high water cut stage, horizontal well, development effect evaluation, development strategy

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