准噶尔盆地腹部、南缘温压场与油气成藏

准噶尔盆地腹部和南缘普遍发育异常高压，但由于沉积及构造背景的差异，其成因也不尽相同，其中腹部以及岩作用和烃类生成作用为主控因素，南缘则以欠压作用和构造抬升作用为主，区域地质构造控制了盆地的地温，而岩石物性，火山活动，断裂作用等仅对局部地温分布有着重要的影响，通过分析盆地温压场特征，认为异常温压抑制了有机质的热演化，在很大程度上控制着油气成藏与分布。

The Temperature and Pressure Fields and Related Hydrocarbon Reservoirs in Southern Margin and Hinterland of Junggar Basin

Although abnormal high pressure is widely developed in the center and the south of Junggar basin,the forming mechanisms are different due to the discrepancies in sedimentation and tectonics.In the central part,diagenesis and hydrocarbon generation are the key controlling factors.Correspondingly,the main influence elements in the south are under compaction and tectonic uplift.In addition,regional structure controls the distribution of temperature,but lithology,volcanic activity,rifting and suchlike only have important effect on local distribution of temperature.Accord-ing to the analysis of pressure and temperature fields,it was shown that anomalous temperature and pressure restrain the thermal evolution of organic matters and control the forming and distribution of hydrocarbon.