[1]冯晓楠,姜汉桥,李 威,等.应用核磁共振技术研究低渗储层压裂液伤害[J].复杂油气藏,2015,(03):75.
　Feng Xiaonan,Jiang Hanqiao,Li Wei,et al.Study on formation damage of fracturing fluid to low-permeable reservoir by NMR[J].Complex Hydrocarbon Reservoirs,2015,(03):75.
点击复制

应用核磁共振技术研究低渗储层压裂液伤害
分享到：

《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
期数:
2015年03期
页码:
75
栏目:
油气工程
出版日期:
2015-09-25

文章信息/Info

Title:
Study on formation damage of fracturing fluid to low-permeable reservoir by NMR
作者:
冯晓楠1; 姜汉桥1; 李 威2; 方文超1; 赵 林1
1.中国石油大学(北京)石油工程教育部重点实验室,北京 102249; 2.中海油南海东部公司,广东 深圳 518067
Author(s):
Feng Xiaonan1; Jiang Hanqiao1; Li Wei2; Fang Wenchao1; Zhao Lin1
1.MOE Key Laboratory of Petroleum Engineering,China University of Petroleum,Beijing 102249,China; 2.Nanhai East Corporation,CNOOC,Shenzhen 510240,China
关键词:
低渗透储层 压裂液 储层伤害 核磁共振 岩心流动实验
Keywords:
low permeability reservoir;  fracturing fluid;  formation damage;  nuclear magnetic resonance(NMR);  core flow experiment
分类号:
TE357.12
文献标志码:
A
摘要:
开展压裂液伤害性研究对于低渗透储层压裂开发具有重要的指导意义。结合低磁场核磁共振岩心分析技术和常规岩心流动实验方法,深入研究了低渗储层压裂过程中压裂液的水锁伤害、固体残渣堵塞伤害以及敏感性伤害。实验结果表明:岩心由于可动孔隙中水相滞留引起的水锁平均伤害率为23.4%; 由于压裂液破胶形成的固体残渣堵塞对储层的平均伤害率高达66.1%,且储层越致密,孔喉越细小,伤害程度越高; 同时对于水敏或碱敏严重的储层,通过优化压裂液配方,可将由于储层敏感性所导致的伤害率降至10%以下。利用核磁共振横向弛豫时间(T2)谱分析技术,实现了储层伤害的微观定量描述,并首次建立了与宏观渗透率伤害率的联系。
Abstract:
To evaluate formation damage of fracturing fluid has important guiding significance for developing low permeable reservoirs.Combined with core analysis by low magnetic field NMR and conventional core flooding experiments,it was studied on formation damages of water-block,plugging of solid residue,and sensitivity in fracturing process of low-permeable reservoir.Results indicated that because of movable retained water in pores,the average damage rate of water blocking was 23.4%; the average damage rate of solid residue plugging after gel breaking can reach to 66.1%,and then the tighter the reservoir and the smaller the pore throat are,the higher the formation damage is.For serious water or alkali sensitive formation,the damage rate of sensitivity can be decreased to below 10% by optimizing fracturing fluid formula.By using the NMR T2 spectrum technology,the formation damage can be described quantitatively at the microscopic level.And relationship between microscopic and macroscopic damage rate of permeability was established for the first time.

参考文献/References:

[1] 卢拥军.压裂液对储层的损害及其保护技术[J].钻井液与完井液,1995,12(5):36-43.
[2] 舒勇,鄢捷年,李志勇,等.低孔低渗高压砂岩储层损害机理及保护技术研究[J].钻井液与完井液,2008,25(6):17-19.
[3] 陈馥,李钦.压裂液伤害性研究[J].天然气工业,2006,26(1):109-111.
[4] 费海虹,汪强,陈其荣.W6断块储层特征及伤害评价[J].复杂油气藏,2011,04(4):59-63.
[5] 赵春鹏,岳湘安,吴洲,等.英南2井储层伤害评价及保护措施研究[J].石油钻采工艺,2007,29(4):48-50.
[6] Civan F.Reservoir formation damage[M].Gulf Professional Publishing,2011.
[7] Ghalambor A,Economides m J.Formation damage abatement: a quarter-century perspective[J].SPE Journal,2002,7(1):4-13.
[8] 肖立志.核磁共振成像测井与岩石核磁共振及其应用[M].北京:科学出版社,1998.
[9] 刘建坤,郭和坤,李海波.低渗透储层水锁伤害机理核磁共振实验研究[J].西安石油大学学报(自然科学版),2010,25(5):46-49.
[10] 张志军,姜汉桥,陈付真,等.核磁共振技术在凝胶封堵效果评价中的应用[J].复杂油气藏,2014,7(4):50-53.
[11] 王贤君,邓贤文,肖丹凤,等.特低渗透储层压裂液微观伤害评价[J].大庆石油地质与开发,2012,29(6):126-132.
[12] Mungan N.Permeability reduction through changes in pH and salinity[J].Journal of Petroleum Technology,1965,17(12):1449-1453.
[13] 李彤,郭和坤,李海波,等.致密砂岩可动流体及核磁共振T2截止值的实验研究[J].科学技术与工程,2013,13(3):701-704.

备注/Memo

备注/Memo:
doi:10.16181/j.cnki.fzyqc.2015.03.017
收稿日期:2015-02-17; 改回日期:2015-03-17。 作者简介:冯晓楠(1990—),在读硕士,主要从事油气田开发研究。电话:15910551922,E-mail:fengxn90@163.com。 基金项目:国家重点基础研究发展计划(973计划)“陆相致密油高效开发基础研究”(2015CB250900)。
更新日期/Last Update: 2015-09-25