欢喜岭油田齐40块投入稠油蒸汽驱开发后,井底温度逐渐升高,套管结晶、套管气硫化氢浓度升高、井喷、井卡等现象日趋突出,成为蒸汽驱井管理的瓶颈。为此我们进行油井井筒掺水现场实验,实验证明井筒掺水能够彻底解除套管结晶、井喷、井卡现象,并且大幅度降低了套管气硫化氢浓度、提高油井开井时效及产量,但由于掺水与输油泵一体,会造成部分产出油回掺至井下,造成一定的产能浪费。 Huanxiling Oilfield Qi 40 into the heavy oil steam flooding development, the bottom temperature is gradually increased, casing crystallization, casing gas hydrogen sulfide concentration increased, blowout, well card and other phenomena have become increasingly prominent, become the bottleneck of steam drive well management . For this reason, we conducted field experiments on wellbore blending with water. Experiments show that wellbore dredging can completely eliminate casing crystallization, blowout and well card phenomenon, and greatly reduce casing hydrogen sulphide concentration and improve oil well aging and yield, Due to the integration of water and oil pump, it will cause part of the output of oil back to the well, resulting in a certain waste of production capacity.