关键词: 分层测压, 取样, 液性, 剩余油, 动态监测, 储层评价

Abstract: During the middle and later oilfield development periods, the main purpose of EOR is to look for the potential layers and remaining oil in the thick layers, improving oilfield development. Currently, a number of problems exist in the domestic dynamic monitoring and pressure testing of oil producing wells and application of remaining oil saturation logging method for the high water-cut period, such as low precision of measurement on water-cut rate as well as high cost for testing of a single layer. Both Chinese and foreign remaining oil saturation logging methods cannot acquire the liquid properties and pressure of a single layer. BH-WFT wireline layering test system is developed to solve this bottleneck in monitoring of development wells. The wireline transmission method is adopted to send the two-packer downhole instrument to the target layer. The formation pressure, fluid temperature, water-cut rate and fluidic sample of producing pay are acquired to test a single layer by means of natural gamma correction, single-layer packing, pump discharging liquid and real-time monitoring technology. The dynamic detailed data of producing pay are quickly provided so that the plan for next stage can be adjusted on a scientific, reasonable and reliable basis.