论提高油田采收率的战略研究

摘要/Abstract

摘要： 提出了提高油田采收率分三步走的研究战略,即：研究米到百米级的“大尺度”未波及剩余油的分布特点及开采方法；研究厘米到分米级的“小尺度”未波及剩余油的分布特点及开采方法；究已波及区剩余油(“微尺度”剩余油)分布特点及提高驱油效率的方法。计算和研究出了“大尺度”未波及剩余油的三大富集区：即注水高粘原油正韵律油层顶部未波及剩余油；边角影响未波及剩余油；由层系内小层物性差异形成的未波及剩余油。研究出了开发未波及剩余油的10项技术。指出,①例钻水平并将在开采“大尺度”未波及剩余油中扮演最重要的角色；②低流度比驱替剂将在开来“小尺度”未波及剩余油中扮演重要角色；③以水气交替注入为基础添加起不同作用化学剂的泡沫系统将在提高已波及区的驱油效率中起重要作用；④热力法开采高含水油藏能提高驱油效率,但一般不能提高波及效率；⑤微生物采油法和振动波采油法在提高采收率中不能起决定性作用；⑤经济分析在评价提高采收率技术中是至关重要的。

关键词: 剩余油, 驱油效率, 波及系数, 提高采收率, 战略研究

Abstract: The research strategy run by three steps for enhancing oil recovery factor has been proposed. The firststep is the study of distribution type and exploration technology of “megascopic scale”unswept remaining oil. The sec-ond step is the study of distribution type and exploration technology of “macroscopic scale”unswept remaining oil. Thethird one is, on the basis of above-mentioned two steps, when making sweep efficient reach as high as possible, the meth-ods for enhancing oil displacement efficiency in the swept areas. And ten technologies for developing three enriched ar-eas of “megascopic scale”unswept remaining oil are proposed. lt is indicated that: ①the horizontal sidetracks will actthe most important part in producing "megescopic scale”unswept remaining oil;②the oil displacement agent with lowmobility ratio will act an important part in producing "macroscopic scale”unswept remaining oil;③the foamed systemadding to the chemical with different effect as base WAG with comprehensive function will act an important part in enhancing displacement efficiency in the swept areas much importantly;④thermal method can enhance displacement ef-ficiency for high water-cut oil reservoir, but can not increase sweep efficiency in most of the cases;⑤ MEOR and VEORcan not act a decisive effect to EOR; ⑥an economic evaluation is very important to EOR.

俞启泰. 论提高油田采收率的战略研究[J]. 新疆石油地质, 2000, 21(4): 307-310.

Yu Qitai. On Research Strategy for Enhancing Oil Recovery Factor[J]. Xinjiang Petroleum Geology, 2000, 21(4): 307-310.

参考文献

[1] 俞启泰. 论提高油田采收率的战略与方法[J].石油学报,1996,17(2):53-61.
[2] Haldorsen H H.Reservoir characterigation procedures for numerical simulation[D].University of Texas at Austin,PKD thesis,1983.
[3] Sheriff R E.Reservoir geophysics[M].SEG,Tulsa,1992.
[4] 俞启泰. 关于剩余油研究的探讨[J].石油勘探与开发,1997,24(2):46-50.
[5] 林志芸,俞启泰,彭鹏商,等.高含水期油田开发方法系统[J].新疆石油地质,1997,18(4):363-369.
[6] BsroncKaR EM OxcnepTHas oreHKa opM 3azeraHHA ocTaTotHof HedprH nacre[J]. HerH ra31984(8),18-22.
[7] Chierici G L.Economically improving oil rvcovery by advanced resevrvoir management[J]. SPERE,1986,( 11)604-606.
[8] 俞启泰. 注水多层砂岩油藏大尺度未波及剩余油的三大富集区[J].石油学报,2000,21(2).
[9] Brasbear J P,Khasrow Biglarbigi,Ray R M.Improved oil recovery in the vnited States: the race between tecbnol-ogy advancement and resoarce abandonment[J]. SPE/DOE27778.
[10] Kouo6HcKMn B J,MycnMMOB P.X. o cTaIuAx paspaIOrKK HedprAHbrx MecropoKIeHx[J]. HX,1996(4),42-46.
[11] Illap6aroBa H H,CypryieB M I. LIKIs4ecKoe BO3ne cTBne HaHeopHopOHble HedTAHbenuAacTM[M]. MHenpa 1988.
[12] IIhIHKoRa o s,MACHHKOBa H A,baxeB b T. l HpoAHHaMruecxHe MeToAb yBenk4eHks HedreoTa4H[M].M. Henpa,1993.
[13] Surgucbev L M,et al.Optimum water alter alternate gas injection schemes for stratified reservoirs[J].SPE24646.
[14] Champion J HShelden J B.Animmiscible WAGinjectionproject in Kuparuk River Unite[J].SPE16719.
[15] whisonant RJ,Hall F R. Combining technologies improves production and reserves in a mature oilfield[J].JPT,F.1998,86-88.
[16] 何台平,陈素珍,俞启泰.注水断块油田水平井开采剩余油数值模拟[[J].新疆石油地质,1996,17(1):50-55.
[17] 朱九成,郎兆新,黄延章.指进、剩余油形成与分布的物理模拟[J].新疆石油地质,1998,19(2):154-155
[18] 王启民,廖广志,牛金刚.聚合物驱油技术的实践与认识[J].新疆石油地质,1999,18(4);1-5.
[19] Mahenolra Dratap,Roy R P,Gupta R Ket al,Field implemeta tion of a polyner EOR technique[J]Jan.1998,87-88.
[20] Jyun-Syung Tsau,Reid B Grigg.CO,-foam floods:foam properties and mobility-reduction effectiveness[J].JPT,1998,(1):69-70.
[21] Van Poollen H.K.Fundamentals of enkanced oil recovery[M].Oklahoma,Pennwellbooks,1980.
[22] AMeToB H M,HopdMaH M b,KapaKweB 3 H, HapaeBcKas CB,BAHAHKe OTMbiBa acdanbTOCMO1HCTblXBemeeTB HaBaaKOCTEBb ecHseMoR Hedprw[J].HX,1999, (1):34-35.
[23] Kon Wyatt,Malcolm Pitts,Harry Surkalo.ASPflooding produces incremental oil at tnoderate cost[J]. Worldoil,1997,218(7):87-92.
[24] Weber K J,Hans Dronkert.Screening critevia to evaluate the development potential of remaining oil in mat-ure fields[J].SPEREE,Oct.1999,405-411.