【作者】 卓兴家；

【导师】 刘振宇； 王修利；

【作者基本信息】 大庆石油学院 ， 石油与天然气工程， 2008， 硕士

【摘要】 对已注水开发的砂岩油田调整井地层孔隙压力预测方法的研究是油田地质、工程技术人员普遍关心的问题。调整井地层孔隙压力预测不仅难度大,而且其符合程度直接关系到调整井固井质量、油田调整挖潜以及油层套管保护和油田开发政策调整等一列重大决策的成败。大庆油田是早期注水开发的大型陆相非均质、多油层砂岩油田。由于油层在纵向上和横向上均存在着非均质性,从而形成了高压层,正常压力层及欠压层在单井纵向剖面上并存的情况。即形成了多压力层系的压力系统。该压力系统不仅对调整井的固井质量影响较大,而且是油水井套损严重的主要根源。因而,准确的预测地层压力对油田的开发具有十分重要的意义。本论文通过分析地层压力与测井资料之间的关系,研究以往检测压力的各种方法,从而了解其研究方法,掌握其优缺点,对其计算结果进行验证,发现其测压结果并不令人满意,所以本文结合大庆油田油藏的地质特征,研究出新的利用测井资料求取压力的方法,并建立各种合适的解释模型对孔隙压力进行解释。更多还原

【Abstract】 Formation pore pressure method research is what geologic worker and engineer care about for adjust well water flooded of sandstone oilfield. The forecast of adjust well pore pressure is tough and the result affect the well cement job quality, production, etc.DaQing oilfield is big continental sedimentation, early stage water-flood and multiply formation field. Because the heterogeneity be in longitudinal and horizontal, high pressure , normal pressure and negative pressure zone is simultaneity in well that is multi-pressure system. The system can effect well cementation quality and is major reason of casing failure. So pore pressure forecast accurate has very important meaning for field production.This paper analyze relation of pore pressure and well logs, research and master pros and cons of all pressure detection methods. We find result of old method is dissatisfaction, so we find out a new way use well log to get pore pressure, and build explain model.更多还原