注水井偏心電動(dòng)調(diào)配測(cè)試技術(shù)

1、2002年6月油氣井測(cè)試第11卷第3期注水井偏心電動(dòng)調(diào)配測(cè)試技術(shù)高振濤(華北石油采油研究院科研部)侯慶春肖兵陳亞林運(yùn)興(華北油田公司二連分公司)摘要注水井偏心電動(dòng)調(diào)配測(cè)試技術(shù)利用微電機(jī)做動(dòng)力源在井下調(diào)節(jié)水嘴下流量變化,對(duì)調(diào)整目的層注入量可實(shí)時(shí)作出判斷。,具有邊測(cè)邊調(diào)、無(wú)級(jí)調(diào)配、高精度調(diào)配的特點(diǎn)。經(jīng)京582主題詞注水井注入量調(diào)配方式差異大,。近幾年,。國(guó)內(nèi)偏心注水工藝大多采用的是靠反復(fù)投撈水嘴,反復(fù)測(cè)試的方法來(lái)調(diào)配,使得調(diào)配測(cè)試周期長(zhǎng),工作量大,易遇阻遇卡,投撈成功率低等矛盾日益突出。注水井偏心電動(dòng)調(diào)配測(cè)試技術(shù)突破了原調(diào)配方式,利用微電機(jī)做動(dòng)力源在井下調(diào)節(jié)水嘴,控制注水量的大小,實(shí)現(xiàn)儀器一次下井

2、完成多級(jí)調(diào)配,具有邊測(cè)邊調(diào)、無(wú)級(jí)調(diào)配、高精度調(diào)配的特點(diǎn)。3.主要技術(shù)指標(biāo)耐壓:60MPa;耐溫:125;測(cè)量范圍:2200m3/d;精度:±1.5%FS;儀器總長(zhǎng):2200mm;儀器外徑:<42mm。工藝原理注水井偏心電動(dòng)調(diào)配測(cè)試工藝原理如圖2。技術(shù)組成及特點(diǎn)1.技術(shù)組成該技術(shù)主要是由井下測(cè)試調(diào)節(jié)儀、可調(diào)閥、投撈工具三部分組成。測(cè)試調(diào)節(jié)儀由電纜頭、磁定位器、流量器、井下電路、調(diào)節(jié)器等部分組成(見(jiàn)圖1)。2.技術(shù)特點(diǎn)(1)儀器一次下井可同時(shí)完成流量測(cè)試、注水量調(diào)配兩項(xiàng)任務(wù),具有邊測(cè)邊調(diào)功能;(2)能夠在0200m3/d范圍內(nèi)實(shí)現(xiàn)無(wú)級(jí)連續(xù)調(diào)配。高振濤,男,工程師,現(xiàn)從事采油工藝研究

3、工作,地址:河北省任丘市華北石油采油研究院科研部,郵政編碼:062552。54油氣井測(cè)試2002年6月用鋼絲投撈器把原偏心配水管柱中的各段堵塞器逐級(jí)撈出,再逐級(jí)投入可調(diào)閥。用電纜從井口下測(cè)試調(diào)節(jié)儀,流量計(jì)的集流器正好處在<46的孔道內(nèi),集流井筒內(nèi)液體通過(guò)渦輪筒后,由地面控制儀器供電,首先進(jìn)行流量測(cè)試,根據(jù)測(cè)試結(jié)果來(lái)決定可調(diào)閥水嘴開(kāi)度的大小,以此調(diào)整目的層的注水量;在調(diào)整注水量的同時(shí),流量器將井下目的層注水量的信號(hào)經(jīng)電纜傳輸給地面控制儀,地面微機(jī)將顯示出流量大小,并與配注量對(duì)比,若比配注量小,則開(kāi)大可調(diào)閥嘴;若比配注量大,則關(guān)小可調(diào)閥嘴,直到達(dá)到配注量后停止調(diào)節(jié)。后,隊(duì)將偏段可調(diào)閥取出,可

4、調(diào)閥的轉(zhuǎn)動(dòng)桿仍能靈活自如的調(diào)節(jié)水嘴的大小。1999年11月對(duì)京58211進(jìn)行了調(diào)配試驗(yàn),此井的實(shí)注量與配注量不符,需更換水嘴。用鋼絲絞車(chē)將原堵塞器撈出,在偏、偏段投入可調(diào)閥后,下測(cè)調(diào)儀與偏段可調(diào)閥對(duì)接;根據(jù)地質(zhì)要求,偏應(yīng)為死嘴。給調(diào)節(jié)器反向供電,關(guān)閥,電流增大,斷電,進(jìn)行流量測(cè)試,段,67m3/d,注流量變化見(jiàn)表1。,全井注入量為40.3m3/d,滿(mǎn)足配注要求。一個(gè)月以后,為了驗(yàn)證可調(diào)閥水嘴的密封性及控制流量變化的可靠性,又對(duì)京58211進(jìn)行了現(xiàn)場(chǎng)試驗(yàn),試驗(yàn)情況見(jiàn)表2。表2京58211井復(fù)調(diào)前后流量變化情況配注量(m3/d)4040注水井偏心電動(dòng)調(diào)配測(cè)試技術(shù)經(jīng)過(guò)了大量的室內(nèi)試驗(yàn)后,在采油四廠別

5、古莊油田對(duì)京618井和京58211井等五口偏心注水井進(jìn)行了15井次的現(xiàn)場(chǎng)試層段全井偏段偏段復(fù)調(diào)前(m3/d)44440復(fù)調(diào)后(m3/d)41410驗(yàn)。在測(cè)試、調(diào)配工藝上都取得了成功。1999年10月在采油四廠京618井進(jìn)行了三井死嘴次現(xiàn)場(chǎng)試驗(yàn),由于京618井的日注水量為47m3/d,需更換水嘴,因此在該井進(jìn)行了試驗(yàn)。試驗(yàn)前井口注入量為47m3/d,地質(zhì)下達(dá)該井配注數(shù)據(jù)(見(jiàn)表1)。表1京58211井關(guān)閥的流量變化情況關(guān)閉時(shí)間(min)流量(m3)067262354248340.3從京58211井復(fù)調(diào)結(jié)果看出,可調(diào)閥水嘴密封性能好,可調(diào)閥的傳動(dòng)桿仍能控制注水量的大小。試驗(yàn)結(jié)果表明,注水井偏心電動(dòng)調(diào)

6、配測(cè)試技術(shù)的最大優(yōu)點(diǎn)是一次下井可完成全井各層段的調(diào)配測(cè)試,調(diào)配精度高,可無(wú)級(jí)連續(xù)調(diào)配。在井下對(duì)水嘴的調(diào)節(jié)過(guò)程中,可以直接觀察到井下流量的變化情況,為如何調(diào)整作出正確判斷。投撈器在撈偏、段堵塞器時(shí),幾次在偏段以下遇阻,為找出原因,用測(cè)試調(diào)節(jié)儀下井來(lái)確定遇阻深度,當(dāng)儀器下到1435.5m處遇阻,磁定位無(wú)輸出信號(hào),分析偏、段堵塞器砂埋。因此,只能將偏段堵塞器撈出,下可調(diào)閥對(duì)該段進(jìn)行調(diào)配測(cè)試。調(diào)配時(shí),給井下儀器供電80V,電流4060mA。調(diào)配效果非常明顯,進(jìn)行了開(kāi)閥、關(guān)閥調(diào)配試驗(yàn),最后,將該段流量調(diào)到20.4m3/d,達(dá)到了偏配注要求。通過(guò)對(duì)該井的測(cè)試調(diào)配,分析認(rèn)為,由于偏、段堵塞器砂埋導(dǎo)致全井注入

7、量不足,試驗(yàn)以后,將測(cè)調(diào)的分析結(jié)果提供給地質(zhì)部門(mén),經(jīng)再次驗(yàn)證,京618井的偏、段堵塞器確實(shí)已被砂埋。一個(gè)多月以后,為驗(yàn)證可調(diào)閥在井下的耐腐蝕性,采油四廠監(jiān)測(cè)大結(jié)論1.邊測(cè)邊調(diào)技術(shù)切實(shí)可行,調(diào)配精度高,達(dá)到了設(shè)計(jì)要求;2.注水井偏心電動(dòng)調(diào)配測(cè)試儀在井下定位對(duì)接可調(diào)閥準(zhǔn)確可靠;3.可調(diào)閥在井下偏心管柱內(nèi)的投入、撈出、脫卡可靠;4.投撈器投撈可調(diào)閥成功率100%。本文收稿日期:2002-04-02編輯:劉振慶第11卷第2期油氣井測(cè)試77100%.Theimprovedportablewellheadprovidedwithmoresafetyandbettercredibilitybecomesan

8、ecessarysetinfrac2turingtreatment.Subjectheading:fracturing,wellheadequipment,structuralanalysis,technicalreform,effectNewTechniquesofBridge2EccentricSeparateFloodingandTesting.2002(3)11:4548DengGang(GeoscienceDepartment,NanjingUniversity),WangQi,GaoZhe(DaqingOilfieldCompanyLtd.)Basedonthestudyandsu

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11、n2hancepackerworkingefficiency.Subjectheading:Bridge2EccentricSeparate,techniqueApplicationofDeloaderWellTZ427252.2002(3)11:4950QiuJun,Gong(oCompany),WangYu,ZhuJiahuan,WangFei(Oil&GasDe2velopmemt)PumpingdeepwellRodDeloaderSystemwasappliedatthewellTZ427252ofTarimOilfield.Thispaperin2troducesworkp

12、rinciples,structurecharacters,mainfunctions,utilitiesandadvantageoftheDeloaderSystem,andthehistoryofthewell.Atthesametime,thearticledescribesthepracticalproductionprocess,analysisbetweentestwithcalculatedata,andeconomicbenefitsoftheDeloaderSystemafteritsuseatwellTZ427252.Subjectheading:Talimuoilfiel

13、d,suckerrodpump,pumpingdeepwell,applicationPerformationMonitoringApplicationofBehaviorMonitoringDatainOil2fieldExploitation.2002(3)11:5152LuoYunhua,HuangDecui(GudongPetroleumProductionFactory,ShengliPetroleumAdministrationBureau),ZhangZhenfang(GudaoPetroleumProductionFactory,ShengliPetroleumAdminist

14、rationBureau)IthasenteredthehighwatercutperiodinGudongoil2field.Difficultyofmaintainingconstantproductionisincreasedforsandheavyflowandconflictsamonglayersstandout.Throughtheapplicationofallkindsofdatafrombehaviormonitor2ing,oilfieldexploitationefficiencyhasbeenimproved.Itisshownthatmonitoringdatatu

15、rntobemoreandmoreimpor2tantinoilfieldexploitation.Subjectheading:performancemonitoring,stimulation,effect,evaluationEccentricMotorizedDispensingTechnologyinInjectionWell.2002(3)11:5354GaoZhentao,HouQingchun,XiaoBing,ChenYa(ProductionResearchDepartment,HuabeiOilfield),LinYunxin(ErlianSub2Company,Huab

16、eiOilfield)Thetechnologyofeccentricmotorizeddispensingtest,utilizingmicro2motoraspowertoadjustwaternozzle,observingthevariableflowrateonthesurface,canobtainthejudgmentrealtimetomodifytheinvestigatedzone.Thetoolscancom2pleteeverytestingintervalsdispenseatoncetimewhileloweringdownholeandhaveafeatureof

17、dispensingwhilerecording,steplessdispensingandhighaccuracy.BythefieldapplicationinJing5821well,thefeasibilityofithasbeenproved.Subjectheading:waterinjectionwell,injectionrate,dispensingmodeStimulationFractureandMatchingReformTechnologyforYanchangOilLayerinEerduosiBasin.2002(3)11:5558WeiBin,LiRongjia

18、n,ChenPing,QiDiaoliang(DownholeOperationDepartment,ChangqinOilfield)BasedonthegeologicalfeatureandformationsclassificationresearchstudyforYanchanglayerinEerduosibasin,withamountsoffieldapplications,thepapersumsuptheperforationtechnique,drillstemstructure,fracturingproppant,fracturefluidandthematchingfractureoperationparameterswhichissuitableforeverykindsofYanchanglayer,andin2troducesmanyfracturetechnologiesandtheirapplicationsresult