Geological Controls of Coalbed Methane Enrichment&nbsp; in Daning Jixian Area, Southeastern Ordos Basin

LI  Wu-Zhong, CHEN  Gang, SUN  Bin, SUN  Fen-Jin, ZHAO  Qing-Bo

doi:10.11764/j.issn.1672-1926.2011.02.352

Natural Gas Geoscience >

2011 , Vol. 22 >Issue 2: 352 - 360

DOI: https://doi.org/10.11764/j.issn.1672-1926.2011.02.352

Geological Controls of Coalbed Methane Enrichment in Daning Jixian Area, Southeastern Ordos Basin

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1.China University of Mining and Technology，Beijing 100083, China；
2.Langfang Branch, Research Institute of Petroleum and Development，PetroChina, Langfang 065007,China.

Received date: 2010-04-07

Revised date: 2010-05-25

Online published: 2011-04-10

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Abstract

This paper studied the key elements of CBM pool that affected by coal generating and storing capacity, permeability of coal seals and preservation of coalbed methane in Daning Jixian area. Results showed that the CBM pool of this area was sealed off by tectonic and artesian hydrodynamic force. Deposition environment, coalbed permeability, current terrestrial stress and hydrodynamic environment affected the coalbed methane enrichment and high production. It was proved by exploration that high production area was in marsh facies, broad structural and low terrestrial stress area, which was one of CBM exploration optimum in midrank coal in China.
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Key words： Daning-Jixia; Coalbed methane; Reservoir formation condition; Gas pool type; Enrichment law.

Cite this article

LI Wu-Zhong, CHEN Gang, SUN Bin, SUN Fen-Jin, ZHAO Qing-Bo . Geological Controls of Coalbed Methane Enrichment in Daning Jixian Area, Southeastern Ordos Basin[J]. Natural Gas Geoscience, 2011 , 22(2) : 352 -360 . DOI: 10.11764/j.issn.1672-1926.2011.02.352

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