吐哈盆地台北凹陷隐蔽油气藏勘探

The Subtle Reservoir Prospecting in Taibei Sag of Tur-pan-Ha mi Basin.

分析并探讨了台北凹陷隐蔽油气藏发育的概念类型与分布。提出了在台北凹隐开展隐蔽油气藏勘探的基本技术,加强高精度层序地层研究,选区带、定层系、定目标;充分运用地球物理技术手段(地震属性、道积分、相干体等),初步确定砂体分布范围、形态;优选目标,果敢实施钻探,预探成功后,应用油藏描述技术进行综合评价。

The conce pt,types and distributions of subtle reservoirs developed in Taibei sag are analyzed and dis-cussed.The basic technical strategy for exploration of subtle reservoirs in this sag is proposed as following.Based on ex-isting understanding,high-accurate sequences stratigraphic study should be conducted,including selecting play or block,defining sequences and determining targets;fully applying geophysical tools(e.g.seismic attribute,trace integra-tion,phase interference body)to preliminarily determine the scope and the shape of sand body distribution;optimal se-lection of targets followed by decisive performing drilling.Once the preliminary prospecting is successful,a composite evaluation will be made by means of reservoir description technique.