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Experiment research of dissolution kinetics for marine carbonate reservoir in Taxibei and Chuandongbei region under the supergene environment

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2 Author(s)
Fu Jinhao ; Fac. of Earth Sci., China Univ. of Geosci., Wuhan, China ; Bao Zhengyu

The paper studies its dissolution kinetics characteristics under the surface environment through the simulation experiment of marine carbonate samples in the Northwestern margin of the Tarim basin and the northeastern margin of the Sichuan basin. The study shows that in the series of dolomite, the effect of oolitic dolomite corrosion is better than fine grained Yunyan, and fine grained Yunyan is better than algae aggregate Yunyan, the corrosion effects of fine grained Yunyan is worse relatively; In the selected limestone series, the dissolution effect of agglomeration limestone is better than bio-clastic limestone,the effect of oolitic limestone erosion is the worst relatively. For different formation,, in the Paleozoic carbonate rock formation under the Tarim basin, the easiest occurrence dissolution is xiaoerbulake micro-Crystal dolomite, and the second is algae aggregate Baiyun rock and the fine crystal Baiyun rock in the qiulitage Xia Asia Group. In general, the complexed and more prone to dissolve the biogenic carbonate rock. Temperatures is mainly temperature rise on the limestone and dolomite of dissolution shall have effect, namely dissolved rate increases as the increase in temperature.

Published in:

Business Management and Electronic Information (BMEI), 2011 International Conference on  (Volume:4 )

Date of Conference:

13-15 May 2011