升132井区剩余油分布研究
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摘要
目前,我国东部油田大多数已经进入开发中后期,含水在90%以上,同时大多数区块由原来的主力油层向二类、三类油层转化。面对当前国内石油的供需矛盾,如何高效的或更大程度的开发该类油层显得十分重要。针对以上问题本文以升平油田升132区块为研究区域,运用ECLIPSE数值模拟软件对本区剩余油分布进行了精细研究,并针对该区块剩余油分布特征进行了加密方案调整。
本论文根据升132区块储层渗透率低、地层水水侵严重和生产能力低的地质开发特征,利用油田地质、测井、测试和生产动态等资料,深入开展油藏描述和剩余油分布规律的研究工作。本文应用测井解释方法与数值模拟方法结合的新方法来研究剩余油分布,取得了较好的效果。数值模拟研究中,针对本区块油藏特点,运用ECLIPSE数值模拟软件建立了符合油藏实际的三维地质模型。根据生产历史,对全区地质储量、产油量、产水量和含水率等各项开发指标进行了历史拟合,拟合程度基本符合技术要求。通过对各项开发指标的综合分析可知,升132区块剩余油主要分布在构造低部位、内部低井网控制区、断层附近及由于地层非均质性导致注入水未波及到和波及程度低的地区。进一步根据该区块剩余油分布特征,编制了合理的加密调整方案。并运用ECLIPSE数值模拟软件模拟预测了各个方案,通过综合对比分析,优选出最佳调整方案。这为大庆外围低渗透油田的高效开发、在开发中后期如何提高最终采收率方面积累了宝贵的经验和技术。
Nowadays, most of the oilfields in East of China have come to the middle and later development stage, the water cut of which have reach over 90%, meanwhile, most blocks have changed from major reservoirs to minor reservoirs. Facing with the demand and supply antinomy in domestic oilfield, the problem how to develop such reservoir efficiently becomes very important to us.Aiming at the problem above, the paper takes Sheng block 132 of Shengping oilfield as research area, use ECLIPSE numerical simulation software to research the distribution of the remaining oil in this block, and adjust the infill well project.
According to the geological characteristics of the low permeability, severe water intrusion, and low production ability of the reservoir, using some geological, well test, DST and dynamic production resources, this paper researches the reservoir description and remaining oil detection. This paper synthesizes well test and numerical simulation methods to research the distribution of the remaining oil, in the numerical simulation, Aiming at the reservoir characteristic in this block, ECLIPSE is used to build 3D geological model in accord with the geological fact of the reservoir, some development indexes such as field geological reserve, field oil production, field water production, and field water cut are history matched according to the production history, the matching degree basically comes to the technique require, after analyzing all the development indexes we know that, the remaining oil mainly distributes in the lower construction part, low well network control area, near the fault and in the unswept or less swept area because of the antistrophic of the reservoir. Some rational adjusting projects are made, and after using ECLIPSE numerical simulation software to predict all the projects, and compare with each of them, the best one is chosen out, which accumulates valuable experience and technique on how to develop efficiently and how to enhance oil recovery in the later development stage for the low permeable reservoir around Daqing oilfield.
本论文根据升132区块储层渗透率低、地层水水侵严重和生产能力低的地质开发特征,利用油田地质、测井、测试和生产动态等资料,深入开展油藏描述和剩余油分布规律的研究工作。本文应用测井解释方法与数值模拟方法结合的新方法来研究剩余油分布,取得了较好的效果。数值模拟研究中,针对本区块油藏特点,运用ECLIPSE数值模拟软件建立了符合油藏实际的三维地质模型。根据生产历史,对全区地质储量、产油量、产水量和含水率等各项开发指标进行了历史拟合,拟合程度基本符合技术要求。通过对各项开发指标的综合分析可知,升132区块剩余油主要分布在构造低部位、内部低井网控制区、断层附近及由于地层非均质性导致注入水未波及到和波及程度低的地区。进一步根据该区块剩余油分布特征,编制了合理的加密调整方案。并运用ECLIPSE数值模拟软件模拟预测了各个方案,通过综合对比分析,优选出最佳调整方案。这为大庆外围低渗透油田的高效开发、在开发中后期如何提高最终采收率方面积累了宝贵的经验和技术。
Nowadays, most of the oilfields in East of China have come to the middle and later development stage, the water cut of which have reach over 90%, meanwhile, most blocks have changed from major reservoirs to minor reservoirs. Facing with the demand and supply antinomy in domestic oilfield, the problem how to develop such reservoir efficiently becomes very important to us.Aiming at the problem above, the paper takes Sheng block 132 of Shengping oilfield as research area, use ECLIPSE numerical simulation software to research the distribution of the remaining oil in this block, and adjust the infill well project.
According to the geological characteristics of the low permeability, severe water intrusion, and low production ability of the reservoir, using some geological, well test, DST and dynamic production resources, this paper researches the reservoir description and remaining oil detection. This paper synthesizes well test and numerical simulation methods to research the distribution of the remaining oil, in the numerical simulation, Aiming at the reservoir characteristic in this block, ECLIPSE is used to build 3D geological model in accord with the geological fact of the reservoir, some development indexes such as field geological reserve, field oil production, field water production, and field water cut are history matched according to the production history, the matching degree basically comes to the technique require, after analyzing all the development indexes we know that, the remaining oil mainly distributes in the lower construction part, low well network control area, near the fault and in the unswept or less swept area because of the antistrophic of the reservoir. Some rational adjusting projects are made, and after using ECLIPSE numerical simulation software to predict all the projects, and compare with each of them, the best one is chosen out, which accumulates valuable experience and technique on how to develop efficiently and how to enhance oil recovery in the later development stage for the low permeable reservoir around Daqing oilfield.
引文
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[2]林承焰.剩余油的形成与分布[M].东营:石油大学出版社,2000(2):1-5.
[3] HOVERSTEN GM,eta.l Reservior characterization using crosswell electromagnetic inversion,a feasibility study for the Snorre field, North Sea[J].Geophysics,2001,66(4):1177-1189.
[4] Hydraulic (Flow) Units and Predict Permeability in Uncored Intervals/Wells. SPE 26436
[5]陈亮,朱艳平,张一伟.高含水期剩余油的多学科研究[J].断块油气田,1999,(5),1-3.
[6]魏斌,郑浚茂.高含水油田剩余油分布研究[M],北京:地质出版社,2002,6(5):21-34.
[7] Through Fine-scale Geostatistical Realization Using a New, 3-D, Streamline Model: A Field Example. SPE, 36008.
[8]黄伟岗,郭平,徐艳梅.剩余油分布地质研究方法[J].西南石油学院学报,2005,7(3):3-5.
[9]李道品.低渗透油田开发[M].北京:石油工业出版社,1988.121-135.
[10]于兰兄,韩树柏.确定剩余油分布技术[J].西安地质学院学报,1997,(2):69-72.
[11]冉启佑.剩余油研究现状与发展趋势[J].油气地质与采收率,2003,10(5): 49-51.
[12]高博禹,彭仕宓,王建波.剩余油形成与分布的研究现状及发展趋势[J].特种油气藏,2004,8(4):38-41.
[13]魏纪德,杜庆龙,林春明,张同意大庆油田剩余油的影响因素及分布[M].石油与天然气地质,2001,22(1):57-59.
[14]陆健林,李国强,樊中海.高含水期油田剩余油分布研究[J].石油学报,2001,22(5):48～52.
[15]窦松江,周嘉玺.复杂断块油藏剩余油分布及配套挖潜对策研究[J].石油勘探与开发.2003,30(5):90～93.
[16]李胜利,于兴河,高兴军,张志杰,王庆如,梁卫,周锦.生产动态和油藏静态结合研究剩余油分布的理论与方法[J].资源与产业,,2006,(02),1-3.
[17]岳立强,李秀朋,岳立勇,杨玲洁.复杂断块油田剩余油分布规律研究[J].内蒙古石油化工, 2006,(09),2-5.
[18]刘晓艳,陈月明,李洁,綦红芳,张莲忠.特高含水期油田剩余油评价方法在某单元的应用[J].西部探矿工程,2006,(12),1-4.
[19]姜汉桥等.剩余油分布规律的精细数值模拟[J].石油大学学报,1999,23(5):31-34.
[20]谢俊,张金亮.剩余油描述与预测[M].北京:石油工业出版社,2003:1-13.
[21]愈启泰.关于剩余油研究的探讨[M].石油勘探与开发,1997,24(2):46-50.
[22]李淑霞,陈月明,冯其红等.利用井间示踪剂确定剩余油饱和度的方法[J].石油勘探与开发,2001,28(2):73-75.
[23] Begg, S.H. and Gustason, E.R. Characterization of a Complex Fluvial-Deltaic Reservoir for Simulation. SPE 28398.
[24] Bouvier JD, Kaars-Sijpesteijn CH, Kluesner DF etal. Three-dimensional seismic interpretation and fault sealing investigation, Nun River Field, Nigeria. AAPG, 1989, 11: 1397-1414.
[25] Akhil Datta-Gupta, Michael J. A semianalytic approach to tracer flow modeling in heterogeneous permeable media.Advances in water Resources. 1995, 18:9-24.
[26] Ebanks W.J.The Flow Unit Concept-An Intergrated Approach to Reservoir Description for Engineering Projects. AAPG, 1987, 3: 214-281.
[27]王坤,靳兴.三次加密剩余油综合描述技术[J].大庆石油地质与开发,2003,22(2):35.
[28]胡雪涛,李允.随机网络模拟研究微观剩余油分布[J].石油学报,2000,7(4):152-156.
[29]李洪玺,刘全稳,温长云.剩余油分布及其挖潜研究综述[J].特种油气藏,2006,13(3):8-11.
[30]冉启佑.剩余油研究现状与发展趋势[J].油气地质与采收率,2003,10(5):50-51.
[31]杜庆龙,卿路,程宝庆.高含水后期剩余油确定方法研究.国际石油工程会议论文集[A].北京:石油工业出版社,1998(10):404-409.
[32]熊琦华.现代油藏描述技术及应用[J].石油学报,1994,增刊:1-40.
[33]刘泽容,信荃麟,王伟峰.油藏描述原理与方法技术.北京:石油工业出版社,1993,5(4):33-56.
[34]裘怪楠,陈子琪油藏描述[M].北京:石油工业出版社,1996,6(2):184-196.
[35]张一伟,熊琦华,王志章.陆相油藏描述[M].北京:石油工业出版社,1997(3).55-89.
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