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ID:36659227
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页数:5页
时间:2019-05-13
《深水聚胺高性能钻井液试验研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、第41卷第3期石油钻探技术Vo1.41No.32013年5月PETROLEUMDRILLINGTECHNIQUESMav,2013._深水钻井完井专题doi:10.3969/j.issn.1001—0890.2013.03.007深水聚胺高性能钻井液试验研究赵欣,邱正松,石秉忠,林永学,高书阳(1.中国石油大学(华东)石油工程学院,山东青岛266580;2.中国石化石油工程技术研究院,北京100101)摘要:聚胺高性能钻井液是性能最接近油基钻井液的水基钻井液,在深水钻井领域具有广阔的应用前景。为降低钻井液成本,在研制聚胺强抑制剂的基础上,考虑水合物抑制及低温流变性等因素,通过优选
2、处理剂,构建了适用于深水钻井的聚胺高性能钻井液体系,并对其进行了综合性能评价。结果表明,该钻井液可抗150℃高温,且低温流变性优良,2℃和25℃的表观黏度比和动切力比分别为1.36和1.14;其抑制页岩水化分散效果与油基钻井液相当,体现了其强抑制特性;在模拟1500m水深的海底低温高压(1.7℃,17.41MPa)条件下,具备120h抑制水合物生成的能力;抗钙、抗劣土污染能力较强;无生物毒性,能满足深水钻井环保要求。其主要性能指标基本达到了用于深水钻井的同类钻井液水平,可满足深水钻井要求。关键词:深水钻井聚胺钻井液钻井液添加剂钻井液性能天然气水合物中图分类号:TE254文献标识码
3、:A文章编号:i001—0890(2013)03—0035—05ExperimentalStudyonHighPerformancePolyamineDrillingFluidforDeepwaterDrillingZhaoXin,QiuZhengsong,ShiBingzhong2,LinYongxue。,GaoShuyan~(1.SchoolofPetroleumEngineering,ChinaUniversityofPetroleum(Huadong),Qingdao,Shan—dong,266580,(ina;2.SinopecResearchInstitute0fPe
4、troleumEngineering,Beiing,100101,China)Abstract:Highperformancepolyaminedrillingfluid,awater—baseddrillingfluid,iSsimilartooil—baseddrillingfluidinperformance,andhasbroadapplicationprospectsinthedeepwaterdrilling.InordertobreakthetechnicalmonopolyofforeigncompaniesandreduceCOSTS。basedonthedev
5、elopmentofahighlyinhibitivepolyamineshaleinhibitorandtakingconsiderationoflOWtemperaturerheologyandhydrateinhi~bition,ahighperformancepolyaminedrillingfluidhadbeenformedfordeepwaterdrillingbyselectingaddi~tives.ThecomprehensiveevaluationresultsshowedthatthepropertyofthedrillingfluidiSstableaf
6、terhotrollingat150℃.Theratiosofapparentviscosityandyieldpointat2℃and25℃were1.36and1.14re—spectively,whichindicatedthatthedrillingfluidwasgoodinlowtemperaturerheologicalproperty,andcomparablewithoil-baseddrillingfluidinshaleinhibition,suggestingthedrillingfluidishighlyinhibitive.Inasim—ulating
7、conditionoflOWtemperatureandhighpressure(1.7℃,17.41)at1500mwaterdepth,therewouldbenogashydrateformedinthedrillingfluidin120hours.Moreover,ithadgoodresistancetoCaC12(upto1.0)andcuttings(upto8.O)contaminatioraTheElCs。valueofthedrillingfluidwash
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