Oil & Gas Geology ›› 2012, Vol. 33 ›› Issue (5): 695-704.doi: 10.11743/ogg20120505

Previous Articles     Next Articles

Controlling factors of structural reservoir distribution and its prediction method in Nanpu depression, Bohai Bay Basin

Huang Manning1,2, Dong Yuexia3, Pang Xiongqi1,2, Hao Haijiang1, Guo Jigang1,2   

  1. 1. State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China;
    2. Research Center of Basins and Reservoirs, China University of Petroleum, Beijing 102249, China;
    3. Research Institute of Exploration and Development, Jidong Oilfield, PetroChina, Tangshan, Hebei 063004, China
  • Received:2012-05-24 Revised:2012-08-11 Online:2012-10-28 Published:2012-11-15

Abstract:

Nanpu depression in Bohai Bay Basin has large petroleum exploration potential,and most of the reservoirs discovered in the depression are of structural type.However,the distribution pattern of petroleum resources is still unclear,so it is diffficult to effectively develop petroleum exploration.Geofacies,fluid potential and hydrocarbon kitchen are believed to be main factors controlling hydrocarbon distribution in Nanpu depression.Geofacies controlls hydrocarbon distribution by "favorable facies combined with high porosity and permeability" pattern, fluid potential controlls by "low potential" pattern,and hydrocarbon kitchen controlls by "near source" pattern.Based on these patterns,we established a comprehensive hydrocarbon accumulation model of "near source-favorable facies-low potential",which was applied to predict petroleum accumulation distributioin in Nanpu depression.Potential anticlinal reservoirs may occur in the first-order favorable area in Beipu structural belt and the second-order favorable area in Nanpu No.4 structural belt,whereas potential fault-block reservoirs may occur in the second-order favorable area in Beipu structural belt,second-order favorable area in Nanpu No.3 structural belt,second-order favorable area in Nanpu No.4 structural belt and third-order favorable area in Nanpu No.5 structural belt.

Key words: geofacies, fluid potential, hydrocarbon kitchen, structural reservoir, Nanpu depression, Bohai Bay Basin

CLC Number: