渤海深部地层出砂预测研究

Prediction of sand production in deep strata of Bohai Sea

渤海油田出砂是一个巨大的挑战,为了准确预测渤中深井是否存在出砂,综合利用声波时差法、B指数法、斯伦贝谢指数法进行综合的预测。预测结果表明渤海的深井不易出砂,但是为了避免长期开采井壁出现坍塌,因此建议采用防砂筛管或者打孔管支撑井壁。有效的指导了现场的作业。

Sand production in Bohai oilfield is a great challenge. In order to accurately predict whether there is sand production in mid deep wells in Bohai oilfield,the acoustic time difference method,b-index method and Schlumberger index method are comprehensively used for comprehensive prediction. The prediction results show that the deep wells in Bohai Sea are not easy to produce sand,but in order to avoid the collapse of the wellbore during long-term mining,it is suggested to use sand control screen or perforated pipe to support the wellbore. The effective guidance of on-site operation.