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1、2010年第39卷石油礦場(chǎng)機(jī)械第10期第82頁(yè)OILFIELDEQUIPMENT2010,39(10):82～87文章編號(hào):100123482(2010)1020082206海上油田同井注采技術(shù)開(kāi)發(fā)與應(yīng)用程心平,劉敏,羅昌華,張成富,姚智翔,代向輝(中海油能源發(fā)展股份有限公司采油技術(shù)服務(wù)公司,天津300452)①摘要:針對(duì)海上油田開(kāi)發(fā)生產(chǎn)中出現(xiàn)的油田注水水源不足,采油井多層系開(kāi)發(fā)調(diào)整要求分層段、分階段轉(zhuǎn)注及采油井伴生氣回注等技術(shù)問(wèn)題,開(kāi)發(fā)了同井采注工藝技術(shù)。將有水層注水井的水層打開(kāi)提供水源,同時(shí)保持原注水井正常注水,與平行雙管相比,單管大排量同井
2、采水注水技術(shù)使同井33采水量從800m/d提高到2500m/d;對(duì)不同目標(biāo)層位可分別進(jìn)行采出或注入,即同井采油注氣或同井采油注水,相當(dāng)于把原來(lái)的1口井變成2口井使用,提高了單井利用率,實(shí)現(xiàn)了一定范圍的井網(wǎng)優(yōu)化。該技術(shù)在渤海灣SZ3621、JZ923、LD1021等油田成功應(yīng)用8口井,已成為老油田穩(wěn)產(chǎn)增產(chǎn)的重要技術(shù)手段,為新開(kāi)發(fā)油田生產(chǎn)完井開(kāi)辟了一個(gè)新的完井模式。關(guān)鍵詞:同井注采;一井多用;海上油田中圖分類(lèi)號(hào):TE934文獻(xiàn)標(biāo)識(shí)碼:BDevelopmentandApplicationofSingleWellIntegralInjection/Pro
3、ductionTechniqueCHENGXin2ping,LIUMin,LUOChang2hua,ZHANGCheng2fu,YAOZhi2xiang,DAIXiang2hui(OilTechnicalServicesCompany,EnergyDevelopmentLimitedCompanyofCNOOC,Tianjin300452,China)Abstract:Thetechnique,referringtothechallengesposedbytheshortageoffloodingsources,re2quirementsofzo
4、nalrecovery,convertedinjectionandassociatedgasrecyclingformultiple2zoneproduction,wassuccessfullydeveloped.Referringtothechallengesposedbytheshortageoffloodingsources,requirementsofzonalrecovery,convertedinjectionandassociatedgasrecyclingformultiple2zoneproduction,thetechniqu
5、ewassuccessfullydevelopedaswell.Tosupplythefloodingsource,thewaterlayerwasdrilledwhilethenormalinjectionwasmaintainedintheinjec23tionwells.Comparedwiththeparalleldual2pipe,thewaterproductionwasenhancedfrom800m/3dto2,500m/d.Basedonfeaturesofgeologicalcharacteristicsandrecovery
6、requirements,con2currentinjectionandproductionforthedifferentlayersinasinglewellwasobtained(gasinjec2tion/oilproduction,waterinjection/oilproduction).Thetechniquemakestheactionofasinglewellworkingasthatoftwosothattheper2wellefficiencyisraisedandthewell2netoptimizationismanage
7、dincertainarea.Thetechniquehasbeensuccessfullyappliedin8wellssuchas:SZ3621,JZ923andLD1021atBohaiBay,andreceivedobviouseconomicbenefits.Thetechniquehasbe2comeanimportanttechnicalmeasureofEORforoldoilfields,andcreatedanewcompletionmodeforproductioncompletionofnewoilfields.Keywo
8、rds:injectionandproductioninsamewell;multi2useinonewell;offshoreoilf
