也门47区块重震联合解释技术的应用

常用的重震联合解释技术可以概括为剥层法、固定骨架法、相互修正法和伸展法4种。也门47区块的特点是，地质结构复杂、勘探程度低、资料基础薄弱。应用固定骨架法和伸展法对也门47区块进行地质结构研究和油气资源分析预测。具体工作思路和步骤是，地质建模与剖面重力人机联作变密度拟合反演、重力基底分块变密度反演、含断裂体系的基底构造编图、油气资源潜力分析推测。圆满完成了为该区块下一步勘探开发决策提供基础资料的任务。

Joint gravitational and seismic data interpretation technique and its application in Block 47

Commonly used joint gravitational and seismic data interpretation techniques can be reduced into 4 classes: layer-stripping, framework-fixing, cross modifying, and analogy. Block 47, Yemen is characterized by complex geology, low coverage of surveillance, and lack of fundamental data. This paper propose to study geologic structures and predict the distribution of oil &; gas resources in Block 47 jointly with framework-fixing and analogy. The key steps in the workflow include geologic modeling and interactive variable density inversion on gravitational section data, block-piece inversion on basement gravitational data, mapping of basement structure with rift system, and prediction of hydrocarbon potentials. Satisfactory results have been achieved.