钻井液与完井液2016，Vol.33Issue(6)：10-16,7.DOI:10.3696/j.issn.1001-5620.2016.06.002
射孔完井工况下固井水泥环破坏研究进展
Progress in Studying Cement Sheath Failure in Perforated Wells
摘要
Abstract
Perforation well completion is a widely used completion method,and is of great importance to oil and gas well stimulation.With more and more wells completed with perforation,more attentions have been paid to the sealing integrity of cement sheaths after perforation,especially the perforation of wells with thin pay zones.Research work presently done has been focused on the effects of perforation on casing strings,while little attention has been paid to the damage of cement sheath.Oil and gas well perforation has characteristics such as being powerful,short time,high temperature,and being highly destructive.It is pointed out in this paper,based on analysis,that the difficulties in studying the failure of cement sheath mainly lie in laboratory simulation,determination of the degree of damage to the cement sheath,determination of the cement sheath's resistance to impact under practical conditions,and ascertaining the effects of perforation parameters on the integrity of cement sheath,etc.Researches presently done on the topics such as perforation simulation methods used both in China and abroad,integrity of cement sheath after perforation,shock or impact resistance of cement sheath,and the effects of perforation parameters,are summarized in this paper.Deficiencies of the researches are also discussed herein.Also included in this paper are technical measures concerning self-healing cement,cement slurry and set cement performance designs,optimization of perforation parameters,and prediction of dynamic damage to downhole cement sheath etc.关键词
自修复水泥浆/韧性/水泥环完整性/固井/射孔/综述Key words
Self-healing cement slurry/Toughness/Integrity of cement sheath/Well cementing/Perforation/Summary分类
能源科技引用本文复制引用
李进,龚宁,李早元,韩耀图,袁伟伟..射孔完井工况下固井水泥环破坏研究进展[J].钻井液与完井液,2016,33(6):10-16,7.基金项目
国家十三五重大科技专项“渤海油田高效钻完井及配套技术示范工程下属子课题:复杂油层精细射孔与评价工艺技术研究及应用”(2016ZX05009002-005) （2016ZX05009002-005）
国家自然科学基金项目“基于多相渗流理论的环空气窜机理及应用基础研究”(51574203). （51574203）
