W Yong, J Guancheng, DU Qingfu, XUE Minsheng… - 钻井液与完井 …, 2018 - zjyywjy.com.cn
A supramolecular chemical lost circulation material (LCM) has been prepared based on the supramolecular chemistry theory recently developed. This LCM can be used to control mud …
Y Li - Petroleum Drilling Techniques, 2013 - syzt.com.cn
Rich in limestones, Triassic and Permian in Pengshui Block in southeastern Chongqing are prone to circulation lost through cavities; filtrating loss and intermittent severe circulation lost …