井下压裂暂堵工具用可溶金属材料研究进展  

Research Progress on the Dissolvable Metal for Downhole Temporary Plugging Tools

作　　者：黄传艳 李双贵 李林涛 万小勇 李冬梅 席君杰 王小红[3] HUANG Chuanyan;LI Shuanggui;LI Lintao;WAN Xiaoyong;LI Dongmei;XI Junjie;WANG Xiaohong(Research Institute of Engineering Technology,SINOPEC Northwest Oilfield Company,Urumqi 830011,China;Beijing Zhongke Jinteng Technology Co.,Ltd.,Beijing 102607,China;College of Materials Science and Engineering,Southwest Petroleum University,Chengdu 610500,China)

机构地区：[1]中石化西北油田分公司工程技术研究院,乌鲁木齐830011 [2]北京中科金腾科技有限公司,北京102607 [3]西南石油大学材料科学与工程学院,成都610500

出　　处：《石油矿场机械》2019年第1期68-72,共5页Oil Field Equipment

基　　金：中石化科研项目(P16048)

摘　　要：可溶金属材料制备的井下暂堵工具在压裂施工中的应用,极大地提高了非常规油气井压裂施工效率及技术经济指标。综述了井下暂堵工具用可溶金属材料的性能要求,镁基胞状结构、铝基掺杂结构可溶合金材料的设计思路及制备工艺,介质中Cl-浓度、HCl浓度及介质温度对可溶金属材料溶解速度的影响规律。针对我国特有的高Cl-浓度、高HCl浓度及高温介质,研发溶解速度可控的可溶金属是当前井下暂堵工具材料的发展方向。The fracturing efficiency,technical and economic indicators of unconventional oil and gas well were improved by using dissolvable temporary plugging tool.The dissolvable metal material property requirements for downhole dissolvable temporary plugging tool were reviewed.The material design concept and manufacture process of the Mg base dissolvable alloy with cellar microstructure and the Al base dissolvable alloy with cathodic dopant were analyzed.The effects of chloride ion concentration,hydrochloric acid concentration and solution temperature on the dissolution rate were discussed.The importance and necessity of development on dissolvable metals for downhole temporary plugging tools with controllable dissolution rates for some of China’s special high Cl^-concentration,high HCl concentration under high temperature working condition were discussed.

关 键 词：压裂 工具 材料 

分 类 号：TE931.24[石油与天然气工程—石油机械设备]