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ID:37332242
大小:587.62 KB
页数:4页
时间:2019-05-21
《哈山3井火成岩地层钻井难点与提速对策》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、石油机械CHINAPETROLEUMMACHINERY2014年第42卷第9期钻井技术与装备哈山3井火成岩地层钻井难点与提速对策赵洪山周燕王涛唐波(1.中石化胜利石油工程有限公司钻井工艺研究院2.中国石油集团钻井工程技术研究院)摘要:准噶尔盆地火成岩地层具有岩石坚硬、可钻性差、井斜问题突出等特点,严重影响了石炭系目的层的勘探开发进程。为此,在分析哈山3井火成岩地层钻进过程中的技术难点以及扭转冲击工具在火成岩中的适应性的基础上,针对SLTIT型扭转冲击工具的工作原理、主要结构及性能特点进行了深入分析,指出该工
2、具通过将部分流体能量转换成一定频率、周向扭转的冲击扭矩,并直接传递给钻头,能够有效消除PDC钻头的卡滑现象,提高难钻地层机械钻速。该扭转冲击工具首次在哈山3井火成岩中现场试验,一次入井连续工作649h,单趟钻进尺457.5m,行程钻速0.7m/h,经与相邻上部火成岩井段钻井情况对比,行程钻速提高45.8%,节约了至少11趟起下钻时间与钻头费用。SLTIT型扭转冲击工具的成功开发为今后准噶尔火成岩地层的钻井施工探索出了一种有效提速手段。关键词:火成岩地层;扭转冲击工具;复合钻井;准噶尔盆地;机械钻速中图分类号
3、:TE921文献标识码:Adoi:10.3969/j.issn.1001—4578.2014.09.010DificultiesinDrillingIgneousRockFormationsandProposedROPImprovementforWellHashan3ZhaoHongshanZhouYanWangTaoTangBo(1.DrillingTechnologyResearchInstitute,ShengliPetroleumEngineeringCo.,Ltd.,SINOPEC;2.CNPCD
4、rillingResearchInstitute)Abstract:ThehardigneousrockformationsinJunggarBasinhavepoordrillabilityandseriouswelldeflectionissueswhichseriouslyaffecttheexplorationanddevelopmentprogramofthetargetedCarboniferouslayers.Toad—dresstheseissues,thetechnicaldificult
5、iesindrillingigneousformationsinwellHashan3andtheadaptabilityoftorsionimpactassemblyareanalyzed.In—depthanalyseshavebeenconductedontheworkprinciple,mainstructureandtechnicalperformanceofSLTITtorsionimpactassembly,indicatingthatbyconvertingpartofthefluidene
6、rgyintodrillbit’Simpactivecircumferentialtorquewithcertainfrequency,theassemblycouldeffectivelyeliminatethestick—slipofPDCbitandimproveROPincomplexformations.TheassemblyhasbeenpilotedonsiteinWellHas—han3todrillinigneousrocks.Insingletrip,ithascontinuouslyw
7、orkedfor649hwiththefootageof457.5mandROPof0.7m/h.Comparedwiththedrillingperformanceoftheupperadjacentigneousrocksectionwithothertools.theROPhasbeenimprovedby45.8%andatleast11tripshavebeenreducedinrespectoftimeandcost.TheSuccessofSLTITtorsionimpactassemblyp
8、rovidesaneffectivesolutionofROPimprovementinfutureJunggarigneousrockformationsdrilling.Keywords:igneousrockformation;torsionimpactassembly;compounddrilling;JunggarBasin;ROP构造带外来推覆体哈山3构造上的一口重点探井,0引言设计井深4600m,主
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