RESEARCH ON HYDROCARBON ACCUMULATION PATTERN OFQIANMIQIAO BURIED HILL, DAGANG OILFIELD
Received date: 2007-08-31
Revised date: 2007-10-12
Online published: 2008-06-20
Qianmiqiao buried hill is a complex condensate reservoir. There are many paradoxes in the process of exploration and production. The main purpose of this paper is to discuss the hydrocarbon accumulation pattern within this buried hill. After analyzing the well log information, the authors believe that the buried hill is a weathering crust reservoir, and the effective reservoirs are within the 300m interval from the top of weathering crust. The authors establish a double reservoir system based on well testing and production data, and investigate the performance of the occlusion water system. This pattern indicates that perforated completion, especially acid treatment, is the main cause of producing water in the wells. If the occlusion water is ignored, the reservoir in the Qianmiqiao buried hill could be considered to be a “layered pure condensate pool”.
ZHENG Ya-bin ;XIAO Yu-xiang ;GONG Xing-lin ;Du Xiu-juan ;LI Li-rong ;LIU Yuan-jun . RESEARCH ON HYDROCARBON ACCUMULATION PATTERN OFQIANMIQIAO BURIED HILL, DAGANG OILFIELD[J]. Natural Gas Geoscience, 2007 , 18(6) : 848 -853 . DOI: 10.11764/j.issn.1672-1926.2007.06.848
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