克拉2气田成藏方式初探

The gas accumulation patterns in the Kela-2 Gas Field ,Tarim Basin

根据对克拉 2气田成藏特点、烃源岩生排烃过程、地热异常、储集层流体包裹体及克依构造带中、新生代构造活动等综合分析 ,幕式充注是克拉 2气田的主要成藏方式 ,并初步推断克依构造带多期间歇性的构造活动是造成克拉 2气田多期不连续充注的主要原因。图 1参

The data of Keyi structure about tectonic movements during the Mesozoic-Cenozoic period was synthesized and the development history of the basin and the structure was characterized. Studies on reservoir fluid inclusions, geothermal anomaly, gas accumulation patterns and hydrocarbon expulsion from source rocks show that the gas accumulation occurred episodically in the Kela-2 Gas Field, which lies on Keyi structure. It is inferred that the episodic tectonic actions of the Keyi structure lead natural gas fill episodically in the traps of the Kela-2 Gas Field.