黔南独山地区上石炭统大埔组碳酸盐岩储层特征研究

doi:10.3969/j.issn.1673-8926.2010.Z1.009

Lithologic Reservoirs ›› 2010, Vol. 22 ›› Issue (Z1): 37-43.doi: 10.3969/j.issn.1673-8926.2010.Z1.009

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Carbonate reservoir characteristics of Upper Carboniferous Dapu Formation in Dushan area, southern Guizhou

FAN Yu^1，2， CHEN Hongde^1，3， LIN Liangbiao^1，3， ZHU Zhijun⁴， LONG Ke⁵， DAN Yong¹

（1. Institute of Sedimentary Geology， Chengdu University of Technology， Chengdu 610059， China； 2. Northwest Oilfield Company， Sinopec， Urumqi 830011， China； 3. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation， Chengdu University of Technology， Chengdu 610059， China； 4. East China Institute of Technology， Nanchang 344000， China； 5. Guiyang Institute， Research Institute of Exploration and Development， Southwest Gas Branch， Sinopec， Guiyang 550004， China

Online:2010-12-15 Published:2010-12-15

Abstract

Abstract:

The huge-thick carbonate rock developed in Upper Carboniferous in southern Guizhou, and it is characterized bywide distribution, integrated strata and huge sediment thickness. But its exploration degree is low. So doing a good job in the research of carbonate reservoir characteristics has significances to the evaluation of resource potentiality and prospect ofmarine strata in southern Guizhou. Based on field actual measurement data, cast slice, scanning electronic microscope and reservoir property test, the reservoir characteristics of different lithologies of Upper Carboniferous Dapu Formation are analyzed. The lithologies of Dapu Formation mainly are lastic limestone, microcry-stalline limestone, dolomitic limestone, limy dolomite and dolomite. The main reservoir space type is secondary pore, and the primary pore does not develop. The reservoir pore structure is complicated, belonging to low-porosity and low-permeability reservoirs. The controlling factors of reservoir development mainly contain lithology, diagenesis and structural fracture, except for sedimentary facies. The zone of concealed structural fracture and burial dolomitization may become the further important exploration areas.

Key words: carbonate reservoirs, controlling factors, Dapu Formation, Dushan area in southern Guizhou

FAN Yu， CHEN Hongde， LIN Liangbiao， ZHU Zhijun， LONG Ke， DAN Yong. Carbonate reservoir characteristics of Upper Carboniferous Dapu Formation in Dushan area, southern Guizhou[J].Lithologic Reservoirs, 2010, 22(Z1): 37-43.

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