现代地质Issue(6)：1407-1413,7.
珠江口盆地珠一坳陷地温-地压系统特征及其对油气分布的影响
Characteristics of Geotemperature-Pressure System and Their Influence on Hydrocarbon Distribution in Zhuyi Depression,Pearl River Mouth Basin
摘要
Abstract
Geotemperature and pressure have a great controlling function on hydrocarbon generation,migration and accumulation.The characteristics of geotemperature-pressure system in Zhuyi Depression,Pearl River Mouth Basin are under-researched.By theory of geotemperature-pressure system,the geotemperature,formation pressure and geotemperature-pressure system in three typical sags are characterized and their relationship with hydrocarbon distribution is explored based on measured data.Research shows that Zhuyi Depression is charac-terized by rising geothermal gradient from top to bottom and rising overpressure extent with Enping Formation developing slight overpressure and Wenchang Formation developing moderate overpressure.Overpressure com-posite geotemperature-pressure system develops in Zhuyi Depression,namely normal geotemperature-pressure system of shallow layers and overpressure system of deep layers.So far the reservoirs discovered in Zhuyi Depression are mainly fault reservoirs distributed in shallow and middle layers.However,it is highly possible that overpressure lithological reservoirs are developed in deep layers,which is predicted according to the basic characteristics of overpressure composite geotemperature-pressure system.Finding out the characteristics of geo-temperature-pressure system is quite instructive in predicting hydrocarbon distribution and making exploration deployment in Zhuyi Depression.关键词
珠江口盆地/珠一坳陷/地温/地压/地温-地压系统Key words
Pearl River Mouth Basin/Zhuyi Depression/geotemperature/pressure/geotemperature-pressure system分类
能源科技引用本文复制引用
武彦,刘震,代一丁,全志臻,黄艳辉,程豪华..珠江口盆地珠一坳陷地温-地压系统特征及其对油气分布的影响[J].现代地质,2013,(6):1407-1413,7.基金项目
国家“973”计划项目（2009CB219400）。 （）
