油井的出砂已经成为困扰疏松油藏勘探和生产的一个严重问题,油井出砂是油气在勘探及开采过程中由于储层胶结疏松、强度低、流体的冲刷而导致射孔孔道附近或井底地带砂岩层结构被破坏,使得砂粒随流体从油层中运移出来的现象。油井的出砂对勘探和生产带来极大的危害,在钻井和试油过程中,储层的出砂会造成井漏、井喷、卡钻等复杂事故。 Sand production in oil wells has become a serious problem that plagues the exploration and production of loose reservoirs. Oil well sanding is caused by the loose cementing, low strength and fluid erosion of oil and gas near the perforation or near the bottom during exploration and production Sandstone zone structure is destroyed, making sand with the fluid from the reservoir out of the phenomenon. Sand production in oil wells poses great harm to exploration and production. During drilling and oil testing, sand production in reservoirs can cause complicated accidents such as well leakage, blowout and stuck pipe.