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1、第42卷第2期石油鉆探技術(shù)Vo1.42NO.22O14年3月PETR0LEUMDRILL1NGTECHN1QUESMarI,2014._學(xué)術(shù)爭(zhēng)鳴doi:10.3969/j.issn.1001—0890.2014.02.002對(duì)長(zhǎng)水平段水平井鉆井技術(shù)的幾點(diǎn)認(rèn)識(shí)韓來(lái)聚,牛洪波(1.中石化勝利石油工程有限公司,山東東營(yíng)257000;2.中石化勝利石油工程有限公司鉆井工藝研究院,山東東營(yíng)257017)摘要:為進(jìn)一步明晰長(zhǎng)水平段水平井與大位移井及常規(guī)水平井的差異,探討相關(guān)鉆井技術(shù)發(fā)展思路,進(jìn)行了長(zhǎng)水平段水平井技術(shù)特性分析。經(jīng)分析、對(duì)比,認(rèn)為三者之間的主要區(qū)別為:長(zhǎng)水平
2、段水平井重點(diǎn)解決的摩阻扭矩問(wèn)題在常規(guī)水平井中不突出;其主要技術(shù)目標(biāo)和形態(tài)特征是“相對(duì)較長(zhǎng)”的水平段,但很多情況下不屬于大位移井定義的范疇;相關(guān)鉆井技術(shù)主要關(guān)注井斜角為86。以上“長(zhǎng)”井段的作業(yè)能力,有別于大位移井以水平位移為目標(biāo)的鉆井完井能力。基于上述認(rèn)識(shí),提出了可表征長(zhǎng)水平段水平井形態(tài)特征的初步定義,并從完善鉆井設(shè)計(jì)基礎(chǔ)理論、創(chuàng)新長(zhǎng)水平段提速工藝和經(jīng)濟(jì)鉆進(jìn)模式等方面給出了詳細(xì)建議。關(guān)鍵詞:長(zhǎng)水平段水平井大位移井技術(shù)特點(diǎn)發(fā)展建議中圖分類號(hào):TE243。。.1文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1001—0890(2014)02—0007—05Understandings
3、onDrillingTechnologyforLongHorizontalSectionWellsHanLaiju,NiuHongbo(1.SinopecShengliOilfieldServiceCorporation,Dongying,Shandong,257000,China;2.DrillingTechnologyResearchInstitute.SinopecShengliOilfieldServiceCorporation,Dongying,Shandong,257017,Cina)Abstract:Inordertofurtherclarif
4、ythedifferencesamonglonghorizontalsectionwells,extendedreachwellsandconventionalhorizontalwells,andexploredrillingtechnologiesandrelativedevelopingstrategyforlonghorizontalsectionwells,thetechnicalcharacteristicsofthesekindsofwellswereanalyzed.Thea—nalysisandcomparisonshowsthemaind
5、ifferencesamongthethreekindsofwellsareasfollows:theprob—lemofdragandtorquein1onghorizontalsectionwellsisnotseriousinconventionalhorizontalwells;longhorizonta1sectionwellsfeaturealonghorizontalsection,whichisbeyondtherangeofextendedreachwellinmanycases:therelativetechnologieshavebee
6、nfocusedonthedrillingabilityforthelonghorizontalsec—tionwithdeviationofmorethan86。,itisdifferentfromthedrillingandcompletioncapabilityinextendedreachwellsthataimedatgettingalongdisplacement.Basedonthefindingsabove,preliminarydefinitionoflonghorizontalsectionwellswaspresented,andsom
7、especificsuggestionsonbasicdrillingdesigntheory,drillingtechnologyforimprovingROPoflonghorizontalsectionandeconomicdrillingmodelhavebeenproposed.Keywords:longhorizontalsection;horizonta1well;extendedreachwel1;technicalcharacteristics;de—velopmentsuggestion作為有效進(jìn)尺最大化的重要技術(shù)手段,長(zhǎng)水平段收稿日期:
8、2013—09~12;改回日期:2014—02—17