阜新改造型盆地油气评价及勘探方向

阜新盆地历经了多次构造运动改造，导致油气藏保存条件遭受断层破坏、油气多次动态散聚以及油气的多源性等特征.通过盆地改造类型、油气评价及勘探方向等方面研究，认为：1）阜新盆地属于整体抬升改造剥蚀型，主要的生储盖层九佛堂组、沙海组保存完好；2）油气评价应采用从原型盆地构造演化源控论正向分析与从保存单元评价保存和富集油气储层的反向认识相结合的思路；3）构造分析是研究的主线，内容包括建造定源、改造定带、保存控藏等3个主要方面；4）海州洼陷和伊吗图洼陷的原生油气藏是主要勘探方向.

HYDROCARBON EVALUATION AND EXPLORATION DIRECTION OF FUXIN REFORMED BASIN

Fuxin Basin has undergone the reformation of multiple tectonic movements, leading to the damage of hydrocarbon reservoir preservation conditions by faults, hydrocarbon losses and multi-sources. Through the study on basin reformation type, hydrocarbon evaluation and exploration direction, it is considered that Fuxin Basin belongs to the overall uplifting, reformed and denuded type, with the main source-reservoir-cap rocks of Jiufotang Formation and Shahai Formation well preserved. The hydrocarbon evaluation should combine the "source-control theory" forward analysis of prototype basin tectonic evolution with the reverse understanding of "preservation unit" to evaluate preservation and enrichment of reservoir. Structural analysis is the key to the study, including determination of hydrocarbon sources by formation, determination of structural-sedimentary facies belts by reformation, and reservoir controlling by preservation. The primary hydrocarbon reservoirs in Haizhou subsag and Yimatu subsag are the main exploration directions.