论老油田实施二次开发工程的必要性与可行性
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摘要
基于中国石油天然气股份有限公司所属油田目前所处的开发阶段、资源基础、地面系统现状和原油采收率水平等,分析了中国石油所属油田面临的开发形势,提出老油田二次开发的概念。二次开发的对象必须符合3个条件:①油田服役年限在20年以上(稠油油田服役年限在12年以上);②标定的油田可采储量采出程度在70%以上;③油田综合含水率达到85%以上。二次开发是项系统工程,"十一五"以来中国石油在油藏研究、钻采工程、地面系统等方面形成了特色技术。按照"整体部署,分步实施,试点先行"的实施原则,中国石油老油田原油采收率可提高10%~20%。中国石油老油田二次开发前景广阔,实施二次开发工程是中国石油老油田开发的必然选择。
This paper presents a new concept of redevelopment of mature fields and defines its object on the basis of the PetroChina's field development status analysis,including development stage,remaining reserves,surface engineering,and average oil recovery factor.For mature field redevelopment,three conditions must be met.Firstly,the field producing is over 20 years(heavy oil fields over 12 years);secondly,the recovery factor of recoverable reserves is up to 70%;thirdly,the field water cut is up to 85%.PetroChina has developed special technologies and technical know-how in reservoir study,drilling and production engineering,and surface engineering since the national 11th five-year plan.Mature field redevelopment is complex system engineering and should follow three principles,which are integrative deployment,staged implementation,and pilot study first.Redevelopment of mature oilfields is a necessary way and the expected increase of oil recovery factor ranges from 10% to 20%.
This paper presents a new concept of redevelopment of mature fields and defines its object on the basis of the PetroChina's field development status analysis,including development stage,remaining reserves,surface engineering,and average oil recovery factor.For mature field redevelopment,three conditions must be met.Firstly,the field producing is over 20 years(heavy oil fields over 12 years);secondly,the recovery factor of recoverable reserves is up to 70%;thirdly,the field water cut is up to 85%.PetroChina has developed special technologies and technical know-how in reservoir study,drilling and production engineering,and surface engineering since the national 11th five-year plan.Mature field redevelopment is complex system engineering and should follow three principles,which are integrative deployment,staged implementation,and pilot study first.Redevelopment of mature oilfields is a necessary way and the expected increase of oil recovery factor ranges from 10% to 20%.
引文
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[19]周海民,常学军,郝建明,等.冀东油田复杂断块油藏水平井开发技术与实践[J].石油勘探与开发,2006,33(5):622-629.
[2]陈琳凤.Ebughu油田的二次开发[J].国外油田工程,2003,19(4):13-14.
[3]高贵生.Usari油田BQI重油油藏的二次开发[J].国外石油动态,2007,(8):14-17.
[4]缪明才.马格尤期油田的二次开发和管理[J].石油勘探开发情报,1999,(4):42-44.
[5]Mitra N K.Re-engineering of Mumbai High[A].SPE 103763,2006.
[6]司勇.高含水普通稠油油藏二次开发研究[J].特种油气藏,2007,14(3):59-61,65.
[7]Cimic M.Russian mature fields redevelopment[A].SPE102123,2006.
[8]Cuauro A,Ali M I,Jadid M B,et al.An approach for productionenhancement opportunities in a Brownfield redevelopment plan[A].SPE 101491,2006.
[9]Wongnapapisan B,Flew S,Boyd F,et al.Optimising BrownField redevelopment options using a decision risk assessment:Case Study-Bokor Field,Malaysia[A].SPE 87047,2004.
[10]Flew S,Mulcahy M,Stelzer H,et al.Bokor Fieldredevelopment:A Brown Field integrated modeling workflow casestudy[A].SPE 87043,2004.
[11]Agbon I S,Aldana G J,Araque J C,et al.Resolvinguncertainties in historical data and the redevelopment of maturefields[A].SPE 81101,2003.
[12]Kessel O V.Champion East:Low-cost redevelopment ofshallow,stacked,and faulted heavy-oil reservoirs[A].SPE78674,2000.
[13]Boge R,Lien S K,Gjesdal A,et al.Turning a north sea oil giantinto a gas field:Depressurization of the Statfjord field[A].SPE96403,2005.
[14]甘利灯,姚逢昌,杜文辉,等.水驱油藏四维地震技术[J].石油勘探与开发,2007,34(4):437-444.
[15]相建民.塔里木油田水平井高效开发技术[J].石油勘探与开发,2006,33(6):722-728.
[16]周英杰.埕岛油田提高水驱采收率对策研究[J].石油勘探与开发,2007,34(4):465-469.
[17]赵文智,胡永乐,罗凯.边际油田开发技术现状、挑战与对策[J].石油勘探与开发,2006,33(4):393-398.
[18]刘尚奇,王晓春,高永荣,等.超稠油油藏直井与水平井组合SAGD技术研究[J].石油勘探与开发,2007,34(2):234-238.
[19]周海民,常学军,郝建明,等.冀东油田复杂断块油藏水平井开发技术与实践[J].石油勘探与开发,2006,33(5):622-629.
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