随钻地质建模一体化综合研究及应用

针对渤海湾新近系明化镇组下段河流相储层的地质特点,在开发方案钻井实施过程中,应用精细地质建模一体化技术,充分利用新钻开发井资料,结合地球物理资料,应用地质统计学和随机模拟方法,开展对储层井震关系、沉积模式、沉积微相、砂体连通状况的综合研究,及时准确地调整和完善地质模型,建立储层地质预测模型,从而为随钻阶段井位优化、射孔方案优化提供了可靠的静态模型.通过开发井实钻表明,随钻地质建模为油田开发方案的制定和射孔方案优化提供了科学的地质依据.

Study and application of integrated geologic modeling while drilling

Based on the sedimentary features of the fluvial reservoir in the lower member of Minghuazhen Formation of Neo-eerie in the BoHai Bay, precise geologic modeling was used during implementation of drilling program of ODP (Overall Devel-opment Program) for obtaining reservoir depositional pattern, sedimentational microfacies, well-seismic relationship and sand bodies' connectivity. Development data and seismic data of recently drilled developing wells were comprehensively utilized in the method. Besides that, geostatistics and stochastic simulation method were applied. Thanks to the researching, geologic model can be adjusted promptly and improved accurately. Thus, a reliable static geologic model can be provided for optimizing well trajectory and perforating program while drilling. Drilling cases for development well show that geologic modeling while drilling can provide scientific geologic foundation for optimization of developing program and perforating program.