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根据目前国内在地层孔隙压力预测及检测方面存在的困难和问题,提出了地层孔隙压力预测及检测新方法——岩石强度法。通过室内和现场实验,建立了合理的岩石强度计算模型,利用现场大量的随钻录井数据和测试数据,建立了岩石强度与地层孔隙压力的关系模型,并对地层孔隙压力的具体计算方法作了阐述,开发研制出地层孔隙压力综合评估软件系统。新方法在渤海渤中34—2区块进行初步应用,取得较好的效果。
According to the current difficulties and problems in predicting and detecting formation pore pressure in China, a new method of rock pore pressure prediction and detection, rock strength method, is proposed. Through indoor and field experiments, a reasonable rock strength calculation model was established. Based on a large number of logging-while-drilling data and test data in the field, a relation model between rock strength and formation pore pressure was established. The calculation method of formation pore pressure Expounded, developed a comprehensive evaluation of pore pressure software system. The new method was initially applied in Bozhong 34-2 Block of Bohai Sea and achieved good results.