济阳坳陷碳酸盐岩潜山油气藏勘探技术综述

Overview of exploration techniques for carbonate buried-hill reservoirs in Jiyang Depression

针对碳酸盐岩潜山油气藏勘探这一公认的难题 ,介绍了济阳坳陷在近几年勘探实践中所形成的碳酸盐岩潜山勘探配套技术系列 ,如用重、震联合反演 ,三维叠前深度偏移和连片处理技术提高目标选区和圈闭描述的精度 ;采用井点储层分析描述技术和井间储层横向预测技术提高储层预测能力 ;运用油气运聚模拟和模式识别技术 ,为勘探决策提供直接和间接的证据 ;应用多项钻井工艺技术和酸化压裂改造技术有效地保护和改善储层性能。这些技术的成功应用 ,有效地提高了济阳坳陷碳酸盐岩潜山勘探水平 ,勘探成效显著。

A series of exploration techniques for carbonate buried-hill reservoirs applied in Shengli Oil Field were introduced. The application of joint inversion of gravity and seismic data, 3D pre-stack depth migration and 3D seismic jointing processing techniques gave high-quality data and improved the precisions of target selection and description of traps. The techniques of reservoir analysis, well bore description and the cross-hole reservoir lateral prediction could enhance the accuracy of well deployment. The application of pattern recognition and simulation technique for oil and gas transportation and accumulation provided a direct or indirect evidence for exploration decision-making oil and gas. A lot of drilling techniques, acid stimulation and compressive fracturing techniques effectively protected and stimulated the performance of reservoir. The use of these techniques improved the exploration level in carbonate buried-hill of Jiyang Depression.