现代地质Issue(5)：1211-1218,8.
天然气充注导致储层增压的定量研究
Quantitative Study on Pressure Evolution During Gas Charging to Reservoirs
摘要
Abstract
Overpressure plays an important role in oil and gas exploration.Pressure transfer with gas charging is a dominant overpressure mechanism in reservoirs.Because of the tremendous difference in gas solubility and compressibility between formation water and oil,there are different pressure evolutions in the aquifer and the oil layer.In this paper pressure changes caused by methane filling in reservoirs with different kinds of initial pore fluid were simulated.And the quantitative relationship between volume of charged methane and overpressure was established.Then the influencing factors of pressure evolution during gas charging were analyzed.The re-sults indicate the following aspects:gas charging could cause increase of pressure in reservoirs;pressure evolu-tion paths are different with different initial pore fluids;strong overpressure is easier to form in aquifer than in oil-bearing formation;in the same sealing condition,it is easier to form overpressure in shallow strata than in deep strata as well as in high temperature basin than in low temperature basin.关键词
储层/天然气充注/超压/定量模型/影响因素Key words
reservoir/gas charging/overpressure/quantitative model/influencing factor分类
能源科技引用本文复制引用
刘一锋,姚倩颖,谢增业,邱楠生..天然气充注导致储层增压的定量研究[J].现代地质,2013,(5):1211-1218,8.基金项目
国家科技重大专项（2011ZX05007-002）；国家“973”项目（2011CB201101）。 （）
