哈得逊油田位于满加尔凹陷哈得逊构造带的一个鼻状隆起上,是塔里木盆地发现的首个亿吨级海相砂岩油田.它发现于1998年2月,于2000年8月投入生产,2004年底累计探明石油地质储量8 202×104 t,2005年实现控制石油地质储量2 820×104 t,2006年原油年产量达到202×104 t.油田由石炭系海相东河砂岩段油藏与中泥岩段2个薄砂层油藏组成,埋深超过5100m.主力油藏东河砂岩油藏是一个具有统一温度压力系统和倾斜油水界面的地层-构造复合型油藏,勘探开发难度大.论述了油田的发现、勘探开发历程及油藏的基本地质特征,总结了对超深层、低丰度大油田采用勘探开发一体化模式,边滚动勘探开发边科研攻关,使油田储量和产能规模不断上升的实践和认识.

Hadexun Oilfield is the first marine sandstone one with 100×106 t petroleum reserves in Tarim Basin. It is discovered in February 1998 and began to yield oil in August 2000. It has held the total proved petroleum reserves in-place of 82.02×106 t till the end of 2004 and estimated reserves of 28.2×106 t in 2005. The annual crude oil output reached to 2.02×106 t in 2006. The oilfield is located at a nosed rise in Hadexun belt north of the Mangar Depression in the Tarim basin. The oil reservoirs consist of main Carboniferous Donghe Sandstone Member and two thin sandstone layers within Middle Mudstone Member, which have a burial depth over 5,000 m and an amplitude below 34m. Considerable difficulties were encountered in exploration and development of the field because the main Donghe Sandstone oil reservoir is a subtle stratigraphic-anticlinal trap with a unified temperature-pressure system and an inclining oil/water interface and complicated geological conditions. Exploration and exploitation history of the oilfield, general geological characteristics of the superdeep oil reservoirs, and experience and enlightenment during exploration and development are reviewed.