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目前常规试井测试工艺技术不能获取分层压力、地层参数和吸水状况资料,制约了分层注水工艺的作用发挥。应用不稳定试井方法,可准确获取层段地层压力、污染系数等地层参数。通过在濮城油田5口井13层次的现场试验研究,证明其工艺的可行性,为油田注水结构调整提供了可靠依据。
At present, conventional well test technology can not get the data of stratified pressure, formation parameters and water absorption, which restricts the function of stratified water injection. By applying the unstable well testing method, the formation parameters such as formation pressure and pollution coefficient can be accurately obtained. Through the field test of 13 wells in 5 wells in Pucheng Oilfield, the feasibility of the process is proved, which provides a reliable basis for the adjustment of waterflooding structure in oilfields.