
第33卷第6期 2016年11月
钻井液与完井液
DRILLINGFLUID&COMPLETIONFLUID
doi: 10.3696/j.issn.1001-5620.2016.06.002
Vol.33No.6 Nov.2016
射孔完井工况下固井水泥环破坏研究进展
李进,龚宁,李早元2,韩耀图,袁伟伟
(1.中海石油(中国)有限公司天津分公司港海石油研究院,天津300452; 2.西南石油大学·油气藏地质及开发工程国家重点实验室,成都610500)
李造等.射我光并工况下固非水泥环锁坏研究进展[3]钻液与光并源,2016,33(6):10-16.
满要
射孔宅并作为国内外成用最为广泛的完并方式,对油气并增产育着非常重要的意又。随着射孔完并的不断推广,
射孔后水就环层阅封隔完整性感来受到重我,
尤其是霉差油气最,面现有研究主要集中于射乱后套管损及强度影响,
对射孔完再工况下求泥环破坏净及较少。为了更好地阅进射孔启求泥环宅整性的研究与发展,结合油气并射乱成力大、时间短、温度高,破标性强等特点,分新指出了射孔完井工况下围并水泥环破环研究难点主要集中于宝内射孔模飘实验难、射孔后水泥环完整性碳坏程度难确定、实际工况下水混环抗冲击破坏能力难确定以及射孔参数影响不清范等方面,综速了国内外射孔模报验,况水泥环完整性、本环抗冲击相性、射孔作业参数影响的研究观快,探计了目前研究存在的不足。提出了以自够复水泥、水混浆及水就石性能设计、优化射孔参数、非下求泥环动查破坏覆测技术为核心的技术对策与趋势,
关键调自修复本泥家:都性;水泥环完整性;周并:射孔;缔述
中图分类号:TE256.9
文献标识码:A
文章编号:1001-5620 (2016)06-0010-07
Progress inStudyingCementSheathFailureinPerforatedWells
LI Jin', GONG Ning', LI Zaoyuan’, HAN Yaotu', YUAN Weiwei
(1.Bohai Research Institute of Petroleum,TianjinBranch of CNOOC, Tianjin 300452;
2.StateKeyLaboratory of Oiland Gas Reservoir Geology and Exploitation,SouthwestPetroleum University,Chengdu,
Sichuan 610500)
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 Seooda sen peioeaao oeerred aae eouaa shs eao oeoad 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 ofthe 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 paramcters, are summarized in this paper. Deficiencies of the researches are also discussed herein. Also included in this paper are technical measures concerming self-healing cement, cement slurry and set cement performance designs, optimization of perforation parameters, and prediction of dynamic damage to downhole cement sheath etc.
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基金项目:国家十三五重大科技专项“游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);国家自然科学基金项目“基于多相渗流理论的环空气审机理及应用基础研究"(51574203)。
第一作者简介:李进,1988年生,工程师,硕士,主要从事油气并完并射孔、防砂及围完并技术研究。电话(022) 66501136;E-mail : lijin201220011@126.com。
通讯作者:李早元,电话13982045007;E-mail:swpilzyswpu.edu.cn。
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