基于地层压力等效密度确定油气水界面的方法及装置

• Format: Patent
• Language: Chinese
• Published: 04.11.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

本发明提供一种基于地层压力等效密度确定油气水界面的方法及装置，包括：根据获取的待研究区块的常规测井数据确定电缆模块式地层测试器的工作参数；基于工作参数获取地层压力和对应深度数据；根据所述地层压力和对应深度数据，确定不同深度的地层压力等效密度；根据所述不同深度的地层压力等效密度和对应深度数据，绘制地层压力等效密度与深度的交会图；根据所述地层压力等效密度与深度的交会图上的地层压力等效密度的转折点位置确定油气水界面。该方案能提高勘探阶段低阻油藏、稠油油藏、低孔低渗油气藏的识别率，对油气水层的划分更为精确，为油气勘探方案部署与规划提供科学依据。 A method for determining an oil-gas-water interface based on the formation pressure equivalent density. The method comprising: determining working parameters of the wireline modular formation tester based on the acquired conventional logging data of a block to be studied; acquiring a series of formation pressure and corresponding depth data based on the working parameter; computing formation pressure equivalent densities at different depths based on the formation pressure and the corresponding depth data; drawing a crossplot of the formation pressure equivalent density and the depth according to the formation pressure equivalent density and the corresponding depth data at the different depths; and determining the oil-gas-water interface accor