压裂防砂技术进展及存在问题

出砂是疏松砂岩油藏开采中经常遇到的难题之一。中国大油田现已逐步进入开发中后期，稳产上产难度越来越大，而油井出砂已成为制约油田发展的重要因素之一。目前，油井防砂观念已由纯粹的防砂型向防砂增产型转变，较为先进的防砂方法是压裂防砂技术。在压裂防砂方面的研究国外较多，而中国偏少，所以对压裂防砂技术的进展进行了回顾，旨对压裂防砂理论有一个新的认识。在此基础上，指出了目前存在的问题及发展方向。

Technology progress and issues of fracturing sand control.

Sand production is one of the popular issues in the loose sand reservoir production.Many oilfields of China have fallen into the middle-late stage of development with the difficulty in stable pro- duction increasing.Sand production is one of the serious factors constraining the stable production.Sand control concept is grow- ing into a new kind that can control sand and increase yield from the past simple sand control.Fracturing sand control technology is an advanced sand control method,which has been resea...