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时间:2020-04-12
《低渗孔隙型碳酸盐岩稠油油藏开发对策--以叙利亚O油田为例.pdf》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、天热气比第36卷第2期OIL&GASGEOLOGY2015年4月文章编号:0253—9985(2015)02—0297—09doi:10.11743/ogg20150215低渗孔隙型碳酸盐岩稠油油藏开发对策以叙利亚O油田为例宋传真,刘传喜,徐婷,曹丽丽,丁一萍,杨森(中国石化石油勘探开发研究院,北京100083)摘要:叙利亚。油田SH—B油藏为典型的低渗孔隙型块状碳酸盐岩稠油油藏,因“低渗、油稠”等突出特点,在现行的井网和开采方式下油藏开发效果差,主要表现为“三低”,即储量动用程度低、单井产量低和油藏采收率低,尚无一套经济有效、可实施的开发方案。目前,低渗
2、稠油油藏开发在国内外没有成功案例,也没有成熟技术及经验可借鉴,如何经济有效开发属世界级难题。为此,以“提高开发效益,实现有效开发”为目标,针对低渗稠油油藏面临的“三低”问题,应用油藏工程方法、数值模拟和经济评价技术,系统开展了开发方式、井型井网井距、水平段长度及水平井热采参数等优化研究,形成了低渗碳酸盐岩稠油油藏开发对策研究方法,针对性地提出了SH_B油藏的开发对策。优化确定的油藏开发技术对策为开发方案编制奠定了基础,也为国内外类似油藏开发提供了借鉴。关键词:低渗透率;孔隙型;稠油;碳酸盐岩储层;叙利亚中图分类号:TE345文献标识码:ADevelopme
3、ntstrategiesforlow-permeabilitycarbonateheavyoilreservoirs:Acasestudyfrom0oilfieldinSyriaSongChuanzhen,LiuChuanxi,XuTing,CaoLili,DingYiping,YangSen(PetroleumExploration&ProductionResearchInstitute,SINOPEC,Belling100083,China)Abstract:ReservoirSHBofOoilfieldinSyriaisatypicalporousc
4、arbonateheavyoilreservoirwithlow.permeability—.Itstrikinglyfeaturesinlowpermeabilityandhighviscosity.Underthepresentwellpatternsanddevelopmentmodels,thedevelopmenteffecthereispooranditismanifestedbythree—lowparameters:lowratioofproducedreservestoprovedreserves,lowsinglewellproduct
5、ionandlowrecovery.Nocost—effectiveandenforceabledevelopmentplanhasbeenproposed.Presently,thereisnosuccessfulcaseonlow-permeabilityheavyoilreservoirdevelopmentandnomaturetechnolo—gYandexperienceforreference.Thedevelopmentofthiskindofreservoirisstillaworld.classchallenge.Inordertoim
6、.provedevelopmentbenefitsandrealizeeffectivedevelopment,reservoirengineeringtheoriesandmethodologies,numericalsimulationandeconomicevaluationtechniquesareusedtostudyandoptimizesystematicallythedevelopmentmodels,welltypes,wellpatterns,wellspacing,laterallength,andthermalrecoverypar
7、ametersofhorizontalwel1.Researchme—thodsfordevelopingcarbonateheavyoilreservoiraresuggested,anddevelopmentstrategyspecificallyforreservoirSHB—isproposed.Theoptimizeddevelopmenttechnicalpolicylaysafoundationfordevelopmentplanningandprovidesarefe..rencefordomesticandforeignanalogous
8、reservoirs.Keywords:lowpermeabili
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