缝洞型油藏致密基质灰岩的压力敏感性规律的NMR研究

程倩; 刘乃贵; 周杨; 刘中春; 房涛; 朱涛涛; 王为民

doi:10.11938/cjmr20170210

波谱学杂志 >

2017 , Vol. 34 >Issue 2: 206 - 213

DOI: https://doi.org/10.11938/cjmr20170210

低场磁共振技术与应用专栏

缝洞型油藏致密基质灰岩的压力敏感性规律的NMR研究

程倩 ,
刘乃贵 ,
周杨 ,
刘中春 ,
房涛 ,
朱涛涛 ,
王为民

展开

1. 中国石油化工股份有限公司石油勘探开发研究院, 北京 100083;
2. 中国科学院地质与地球物理研究所, 北京 100029;
3. 北京大学信息科学技术学院, 量子电子学研究所, 北京 100871;
4. 中国石油大学地球科学与技术学院, 山东青岛 266580

收稿日期: 2016-04-07

修回日期: 2017-04-20

网络出版日期: 2017-06-05

基金资助

国家科技重大专项资助项目（2016ZX05014-004-001）；国家自然科学基金资助项目（61531002）；国家重点基础研究发展计划（“973计划”）资助项目（2015CB250902）.

收起

NMR On-Line Measurement of Stress Sensitivity of Tight Matrix Limestone Cores in a Karstic Reservoir

CHENG Qian ,
LIU Nai-gui ,
ZHOU Yang ,
LIU Zhong-chun ,
FANG Tao ,
ZHU Tao-tao ,
WANG Wei-min

Expand

1. Research Institute of Petroleum Exploration & Production, SINOPEC, Beijing 100083, China;
2. Institute of Geology & Geophysics, Chinese Academy of Science, Beijing 100029, China;
3. Institute of Quantum Electronics, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China;
4. School of Geosciences & Technology, China University of Petroleum, Qingdao 266580, China

Received date: 2016-04-07

Revised date: 2017-04-20

Online published: 2017-06-05

Fold

摘要

相比于常规储层，缝洞型油藏灰岩储具有集体结构复杂、缝洞尺度差异大、裂缝起主要沟通作用等特点，使用常规方法研究其流动特性和流体分布规律异常困难．该文采用自行研制的核磁共振（NMR）在线驱替装置对塔河奥陶系油藏15块致密基质灰岩岩芯进行了压力敏感性实验，获得了高压及流动状态下岩芯的横向弛豫时间（T₂）谱变化情况．在此基础上分析了灰岩在压敏实验过程中微裂缝尺寸、孔隙度及渗透率的变化规律，并与常规测试分析结果进行了对比．结果表明：NMR在线检测技术可以定量测量岩芯孔隙及微裂缝的变化，为岩芯渗透率变化规律提供微观解释．

关键词： 低场核磁共振(low-field NMR); 压敏性; 致密基质灰岩; 渗透率; 横向弛豫时间(T₂)谱

本文引用格式

程倩 , 刘乃贵 , 周杨 , 刘中春 , 房涛 , 朱涛涛 , 王为民 . 缝洞型油藏致密基质灰岩的压力敏感性规律的NMR研究[J]. 波谱学杂志, 2017 , 34(2) : 206 -213 . DOI: 10.11938/cjmr20170210

Abstract

Compared to the conventional reservoirs, karstic carbonate reservoir has more complex structure, larger difference in the size of fracture cavity, and the property that the fracture functioning mainly as a way for communication. It is difficult to study flow characteristics and distribution in karstic carbonate reservoir with the conventional methods. In this paper, we had built an on-line NMR instrument to test the stress sensitivity of 15 Tahe Oilfield tight matrix limestone cores. The T₂ spectrum was measured at each stage. On the basis of the T₂ spectra measured, the pore size, porosity and permeability changes of the limestone rocks were determined. It was shown that the on-line NMR measurement technology can be employed in the laboratory tests to provide microscopic information on the changes of core permeability.

Key words： stress sensitivity; T₂ spectrum; permeability; low-field NMR; tight matrix limestone

参考文献

[1] LANG D J, SHANG G H, LV C Y, et al. Experiment and application of NMR in carbonate reservoir analysis:An examplefrom Tahe oilfield[J]. Oil & Gas Geology, 2009, 30(3):363-369. 郎东江, 尚根华, 吕成远, 等. 碳酸盐岩储层核磁共振分析方法的实验及应用——以塔河油田为例[J]. 石油与天然气地质, 2009, 30(3):363-369.
[2] MARICA F, CHEN Q, HAMILTON A, et al. Spatially resolved measurement of rock core porosity[J]. J Magn Reson, 2006, 178(1):136-141.
[3] KOMAI T, SAKAMOTO Y, NAKASHIMA Y, et al. NMR measurement and analysis of porosity and permeability for hydrate-bearing sediments[C]. India:Proceedings of The Eighth ISOPE Ocean Mining Symposium Chennai, 2009.
[4] YU Z L, XIONG W, GAO S S, et al. Stress sensitivity analysis of low-permeability reservoirs[J]. Natural Gas Technology, 2008, 2(4):26-29, 78. 于忠良, 熊伟, 高树生, 等. 低渗透储层应力敏感分析[J]. 天然气技术, 2008, 2(4):26-29, 78.
[5] WANG Z H, CHEN G, LI S H, et al. Application of NMR core experimental analysis in evaluation of low-porosity and low-permeability sandstone reservoirs[J]. Petroleum Geology and Experiment, 2014, 36(6):773-779. 王振华, 陈刚, 李书恒, 等. 核磁共振岩芯实验分析在低孔渗储层评价中的应用[J]. 石油实验地质, 2014, 36(6):773-779.
[6] 王为民. 核磁共振岩石物理研究及其在石油工业中的应用[D]. 武汉:中国科学院武汉物理与数学研究所, 2001.
[7] XIAO L, LIU X P, MAO Z Q. A computation method for reservoir permeability by combining NMR log and capillary pressure data[J]. Acta Petrolei Sinica, 2009, 30(1):100-103. 肖亮, 刘晓鹏, 毛志强. 结合NMR和毛管压力资料计算储层渗透率的方法[J]. 石油学报, 2009, 30(1):100-103.
[8] GU C C, WANG W M, GUO H K, et al. Experimental research of cuttings analysis using nuclear magnetic resonance technology[J]. Chinese J Magn Reson, 2002, 19(3):281-288. 谷长春, 王为民, 郭和坤, 等. 现场岩屑核磁共振分析技术的实验研究[J]. 波谱学杂志, 2002, 19(3):281-288.
[9] ZENG L B, SHI C G, WANG Y K, et al. The pressure sensitivity of fractures and its development significance for extra low-permeability sandstone reservoirs in ordos basin[J]. Engineering Science, 2007, 9(11):35-38. 曾联波, 史成恩, 王永康, 等. 鄂尔多斯盆地特低渗透砂岩储层裂缝压力敏感性及其开发意义[J]. 中国工程科学, 2007, 9(11):35-38.
[10] 李仙枝, 宋公仆. EMRT核磁测井在碳酸盐岩储层评价中的应用[J]. 国外测井技术, 2014, 6:18-22.
[11] LI H B, ZHU J Y, GUO H K. Methods for calculating pore radius distribution in rock from NMR T₂ spectra[J]. Chinese J Magn Reson, 2008, 25(2):273-280. 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.
[12] XIAO Z L, PU C S, QIN W L. Experiment on stress sensitivity in low permeability sandstone reservoir[J]. Fault-Block Oil and Gas Field, 2008, 15(2):47-48. 肖曾利, 蒲春生, 秦文龙. 低渗砂岩油藏压力敏感性实验研究[J]. 钻采工艺, 2008, 15(2):47-48.
[13] PENG S L, YE C H, LIU M L. Measurement of permeability of porous rock using NMR T₂ relaxation distribution[J]. Chinese J Magn Reson, 2006, 23(2):271-282. 彭石林, 叶朝辉, 刘买利. 多孔介质渗透率的NMR测定[J]. 波谱学杂志, 2006, 23(2):271-282.
[14] WANG J L, LIU Y Z, CHEN M Q, et al. Experimental study on dynamic imbibition mechanism of low permeability reservoirs[J]. Petroleum Exploration and Development, 2009, 36(1):86-90. 王家禄, 刘玉章, 陈茂谦, 等. 低渗透油藏裂缝动态渗吸机理实验研究[J]. 石油勘探与开发, 2009, 36(1):86-90.
[15] XIAO L Z. Some important issues for nmr logging applications in China[J]. Well Logging Technology, 2007, 31(5):401-407. 肖立志. 我国核磁共振测井应用中的若干重要问题[J]. 测井技术, 2007, 31(5):401-407.
[16] SHAO W Z, DING Y J, LIU Y, et al. The application of nmr log data in evaluation of reservoir pore structure[J]. Well Logging Technology, 2009, 33(1):52-56. 邵维志, 丁娱娇, 刘亚, 等. 核磁共振测井在储层孔隙结构评价中的应用[J]. 测井技术, 2009, 33(1):52-56.
[17] WANG L Q, LIU H Q, ZHEN S G, et al. Quantitative research on stress sensitivity of low-permeability reservoir[J]. Acta Petrolei Sinica, 2009, 30(1):96-99, 103. 王厉强, 刘慧卿, 甄思广, 等. 低渗透储层应力敏感性定量解释研究[J]. 石油学报, 2009, 30(1):96-99, 103.
[18] JIAO C Y, HE S L, XIE Q, et al. An experimental study on stress-dependent sensitivity of ultra-low permeability sandstone reservoirs[J]. Acta Petrolei Sinica, 2011, 32(3):489-494. 焦春艳, 何顺利, 谢全, 等. 超低渗透砂岩储层应力敏感性实验[J]. 石油学报, 2011, 32(3):489-494.

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献