分注井层段压力测试技术的研究

The Research of Pressure Test Technology in Bed-injector Water Layers

常规试井只能求取全井的地层压力及平均地层参数,且易受多层因素的影响,资料失真,不能及时掌握分层压力、分层段地层参数和分层段吸水状况,制约了对注入水前缘的判断。分注井层段压力测试技术,开发了适应偏心注水管柱直接测试分层压力的小型存储压力计及配套的测试仪器和工具。使用专用钢丝投捞工具将测压堵塞器投入偏心配水器偏孔内,测出被封隔器封隔层段内的压力变化,应用不稳定试井方法,获取层段地层压力、污染系数等地层参数,从而及时调整层段配注量,满足地质配注要求,使部分受效油井动液面回升。

The conventional well test only can achieve the entire well formation pressure and the average formation parameter. It is easily influenced by multilayer factor,and cause the data error. We can not hold the layers-pressure, minute-layers formation parameter and minute-layers drink water status in time. The technology of bed-injector water layers pressure test researches the testing instrument and tools. The manometer is fitting partiality injector water to test the pressure directly. We using the tools put the partiality instrument to the hole,testing the change of pressure in layers. Using the unsteadiness testing-well measure to receive the layers pressure, pollute modulus eel. We can adjust the injector quantity, fill the orders in geology,making the surface of moving-liquid on part effect oil wells.