抽油井在生产时一般不能自喷,但在检泵作业起下管柱时,往往发生突然井喷,造成事故。作为预防措施,往往在起管柱前,先用水或泥浆压井。这不仅给油层造成污染,使油井在作业后需要较长时间排放压井液,影响正常生产,而且采油量难以恢复到正常生产水平。 Pumping wells in the production of general self-injection, but in the pump operation from the next column, often a sudden blowout, resulting in accidents. As a precaution, it is common practice to kill water or mud before starting a pipe. This will not only pollute the reservoir, make the oil well need a longer time to discharge the killing fluid after operation, affect the normal production, and it is difficult to recover the oil production to the normal production level.