东辛油田水平井油层保护与改造工艺

Research and application of oil formation stimulation technology for horizontal well in Dongxin oilfield.

胜利油区东辛油田的 4 2口水平井中 ,部分水平井存在出砂、高含水、产能低等问题。采用油层改造技术对其中的 2 0多口水平井进行了防砂、酸化、卡封堵水作业。结果表明 ,水平井采用金属棉滤砂管防砂效果明显 ;机械卡封堵水技术对有接替层或分层开采的水平井的应用效果较好。

The problems of sanding, high water cut, low productivity appeared in some wells among 42 horizontal wells in Dongxin oilfield of Shengli petroliferous province. Sand control, acid treatment and water plugging are operated in more than 20 wells after the study of reservoir stimulation technology is carried out. The results show that sand control response is obvious when sandscreening tube of metal cotton is used for the horizontal wells, mechanical water plugging technology is available in the horizontal wells, which have replaceable layers or are produced in selective zones.