Continuous monitoring oil production technology of downhole temperature and pressure by steam flooding——by taking Du-229 block in Shuguang oilfield as an example

In view of the lack of observation wells and insufficient temperature and pressure monitoring data to guide the profile control and flooding in the early stage of steam flooding development in Du-229 block of Shuguang oilfield, the continuous monitoring and oil recovery technology of downhole temperature and pressure is studied. The temperature and pressure monitoring technology, which integrates thermocouple test temperature and capillary test pressure, is used to realize the continuous and real-time monitoring of multipoint temperature and pressure in the downhole oil layer. Well Du 32-53-33 is selected as the field test well, and the construction scheme and relevant parameter design are carried out. The downhole oil layers are divided into two layers to monitor the temperature and pressure at two points. Based on the monitoring data, the injection and production parameters of the well group are adjusted in time, and good application results are obtained. The production wells can be used as to guide the dynamic regulation of steam flooding development.