Oil & Gas Geology ›› 1994, Vol. 15 ›› Issue (4): 322-327.doi: 10.11743/ogg19940408

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NaAlCO3(OH)2 DISTRIBUTION AND ITS RELATIONSHIP WITH OIL AND GAS IN HAILAR BASIN

Xu Yanbin, Chen Ping, Xu Yongcheng   

  1. Research Institute of Petroleum Exploration and Development, Daqing Petroleum Administration
  • Received:1993-12-23 Revised:1994-04-28 Online:1994-12-25 Published:2012-01-16

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Abstract:

The formation of NaAlCO3 (OH)2 in the. Hailar Basin was related to CO2 Pressure, and all NaAlCO3(OH)2-bearing wells are distributed in high value areas of CO2 pr essu re. Bu t it is a fact that not all CO2 reservoirs contain NaAlCO3(OH)2 since CO2 is just one of the factors to form this minerals.The CO2 in the basin is of inorganic genesis and was dominated by Yenshan magmatic activity while magmatic activity impelled organic matter to matuate and evolute. Accoriding to the coexisting relationship between CO2, NaAlCO3 (OH )2 and hydrocarbon, and the distribution of NaAlCO3(OH)2, target areas of oil and gas as well as CO2 exploration could be predicted.