陈挺,杨正明,王学武,肖朴夫,王向阳,马壮志
CHEN Ting,YANG Zhengming,WANG Xuewu,XIAO Pufu,WANG Xiangyang,MA Zhuangzhi

• 1:中国科学院大学工程科学学院
• 2:中国科学院渗流流体力学研究所
• 3:中国石油勘探开发研究院廊坊分院渗流流体力学研究所
• 4:中国石油大学胜利学院油气工程学院

摘要(Abstract)：

注活性水相较于注水有诸多优势,在特低渗、超低渗油藏的实际开发中效果较好,因此可以借鉴到致密油藏的开发上。针对鄂尔多斯盆地X区块致密油储层,选取不同渗透率的岩心进行注水和注活性水驱油物理模拟实验,结合核磁共振技术,分析致密油岩心的微观孔隙结构、可动流体饱和度以及不同渗透率等级岩心的采出程度、残余油分布等。研究表明:大部分致密油油藏的孔隙为亚微米、微纳米孔,可动流体主要赋存于大于1μm的孔隙中;注活性水效果好于常规水驱,注活性水能够有效地动用微纳米孔中的原油;渗透率越低注活性水的驱油效果越明显,对于渗透率低于0.6×10~(-3)μm的致密油藏,建议采用注活性水开发。
Compared with water flooding,active water flooding has many advantages,and moreover it can achievemuch better effects in the development of extra-low and ultra-low permeability oil reservoirs,therefore it can be used for the reference to the development of tight oil reservoirs. In the light of Block X tight oil reservoirs in Ordos Basin,different permeability cores are selected to conductoil-displacing physical simulating experiment by water and active water floodings,and furthermore integrating nuclear magnetic resonance( NMR) technique,themicro-hole structure,movable fluid mobility,recovery degree of different-grade permeability cores,residual oil distribution and so on were analyzed for the tight oil. The researches show that most of the pores are sub-micro and micro-nano ones,the movable fluid is mainly stored in the pores of more than 1μm,the effects of active water flooding are much better than those of conventional water flooding,for it can effectively develop the oil in the micro-nano holes;the lower the permeability is,the more obvious effects will be; for the tight oil reservoir with permeability less than0. 6 × 10-3μm2,the active water flooding is recommended.

关键词(KeyWords)： 致密油;水驱;活性水驱;核磁共振;采油机理
tight oil;water flooding;active water flooding;nuclear magnetic resonance(NMR);oil recovery mechanism

Abstract:

Keywords:

基金项目(Foundation): 国家科技重大专项“低渗—超低渗油藏有效开发关键技术”(2017ZX05013-001)

作者(Author): 陈挺,杨正明,王学武,肖朴夫,王向阳,马壮志
CHEN Ting,YANG Zhengming,WANG Xuewu,XIAO Pufu,WANG Xiangyang,MA Zhuangzhi

DOI: 10.19597/j.issn.1000-3754.201611008

参考文献(References)：

• [1]邹才能,翟光明,张光亚,等.全球常规—非常规油气形成分布、资源潜力及趋势预测[J].石油勘探与开发,2015,42(1):13-25.
• [2]贾承造,邹才能,李建忠,等.中国致密油评价标准、主要类型、基本特征及资源前景[J].石油学报,2012,33(3):343-350.
• [3]Wang H,Liao X,Zhao X.Study of tight oil reservoir flow regimes in different treated horizontal well[J].Journal of the Energy Institute,2015,88(2):198-204.
• [4]邹才能,杨智,朱如凯,等.中国非常规油气勘探开发与理论技术进展[J].地质学报,2015,89(6):979-1007.
• [5]刘新,张玉纬,张威,等.全球致密油的概念、特征、分布及潜力预测[J].大庆石油地质与开发,2013,32(4):168-174.
• [6]Ghanizadeha A,Clarksona C R,Aquino S,et al.Petrophysical and geomechanical characteristics of Canadian tight oil and liquidrich gas reservoirs:Ⅱ.Geomechanical property estimation[J].Fuel,2015,153(1):682-691.
• [7]Tabatabaei M,Mark D,Daniels N.Evaluating the performance of hydraulically fractured horizontal wells in the Bakken Shale Play[R].SPE 122570,2010.
• [8]纪天亮,卢双舫,唐明明,等.致密油藏水平井压裂后产能预测方法[J].大庆石油地质与开发,2016,35(2):165-169.
• [9]崔宝文,林铁峰,董万百,等.松辽盆地北部致密油水平井技术及勘探实践[J].大庆石油地质与开发,2014,33(5):16-22.
• [10]韩永林,刘军锋,余永进,等.致密油藏储层驱替特征及开发效果:以鄂尔多斯盆地上里塬地区延长组长7油层组为例[J].石油与天然气地质,2014,35(2):207-211.
• [11]李忠兴,屈雪峰,刘万涛,等.鄂尔多斯盆地长7段致密油合理开发方式探讨[J].石油勘探与开发,2015,42(2):217-221.
• [12]李晓辉.致密油注水吞吐采油技术在吐哈油田的探索[J].特种油气藏,2015,22(4):144-146.
• [13]李志强,赵金洲,胡永全,等.致密油层多区体积压裂产能预测[J].油气地质与采收率,2016,23(1):134-138.
• [14]杨正明,骆雨田,何英,等.致密砂岩油藏流体赋存特征及有效动用研究[J].西南石油大学学报(自然科学版),2015,37(3):85-92.
• [15]张永刚,陈艳,邓学峰,等.超低渗油藏表面活性剂降压增注及提高采收率[J].大庆石油地质与开发,2016,35(1):126-130.
• [16]蒋建方,廉静怡,王晓东,等.低渗透水井增注液岩心流动评价[J].大庆石油地质与开发,2013,32(6):103-107.
• [17]赵继勇,樊建明,何永宏.超低渗—致密油藏水平井开发注采参数优化实践:以鄂尔多斯盆地长庆油田为例[J].石油勘探与开发,2015,42(1):68-75.
• [18]姜柏才,郭和坤,沈瑞,等.鄂尔多斯盆地致密油储层微观孔隙结构研究[J].科学技术与工程,2015,15(29):124-130.
• [19]郭馨蔚,师永民,杨悦,等.鄂尔多斯盆地长6油层组致密储层影响因素分析[J].大庆石油地质与开发,2013,32(5):165-169.
• [20]王雨,张群志,郑晓宇,等.双子烷基苯磺酸钠在固体表面的吸附特性[J].油气地质与采收率,2010,17(1):77-79.
• [21]杨正明,江汉桥,周荣学,等.用核磁共振技术测量低渗含水气藏中的束缚水饱和度[J].石油钻采工艺,2008,30(3):56-59.
• [22]王学武,杨正明,李海波.利用核磁共振研究特低渗透油藏微观剩余油分布[J].应用基础与工程科学学报,2013,21(4):702-709.
• [23]李海波,朱巨义,郭和坤.核磁共振T2谱换算孔隙半径分布方法研究[J].波谱学杂志,2008,25(2):273-280.
• [24]李艳,范宜仁,邓少贵,等.核磁共振岩心实验研究储层孔隙结构[J].勘探地球物理进展,2008,31(2):129-132.
• [25]刘卫,肖忠祥,杨思玉,等.利用核磁共振(NMR)测井资料评价储层孔隙结构方法的对比研究[J].石油地球物理勘探,2009,44(6):773-778.
• [26]王学武,杨正明,李海波,等.核磁共振研究低渗透储层孔隙结构方法[J].西南石油大学学报(自然科学版),2010,32(2):69-72.
• [27]李海波,郭和坤,刘强,等.致密油储层水驱油核磁共振实验研究[J].中南大学学报(自然科学版),2014,45(12):4370-4376.