陆梁隆起带石油地质特征及勘探方向

陆梁隆起带是在晚古生代准噶尔板块北缘陆缘岛弧背景上发展起来的一个继承性正性构造单元，是油气运移的长斯指向，西侧的玛源二叠系列生油凹陷是主要的烃源区。三叠纪末期是古生化火山岩的第一次成藏期，中侏罗世晚期至早白垩世为三叠，侏罗系油气藏成藏期，晚白垩世后是古生代火山岩的第二次成藏期，火山岩，尤其是钙碱系列的英安岩，安山岩，储层物性好，是本区的主要储集区；碎屑岩储层虽很发育，但普遍物性差，上三叠统是区域性

Zhang Jiyi.CHARACTERISTICS OF PETROLEUM GEOLOGY AND EXPLORATIONOBJECTIVE IN LULIANG UPLIFT ZONE.

Luliang uplift zone in an inherited positive tectonic unit from marginal arcalong the north margin of Junggar plate during the Late Paleozoic,which is a long-term trendfor petroleum migration,To the west,Mahu source sag(Permian)is a major source area,Pri-mary Paleozoic volcanic reservoir formed at the close of Triassic, Triassic and Jurassic reser-voirs formed during the late Middle Jurassic to Early Cretaceous, secondary Paleozoic volcanic reservoir formed after the Late Cretaceous period. Volcanic rocks (particularly daciteand andesite),which have a good reservoir quality,are the major reservoir rock in this area,whereas clastic reservoir is well developed but with poor quality Upper Triassic is the re-gional sealing bed, acting as a barrier for hydrocarbon preservation, The western part ofsouth slope of Luliang uplift should be considered as the important exploration objective inthe future,because it is characterized by approaching source area,good reservoir and sealingconditions,richness in trap type,and high hydrocarbon potential.