一种基于组分补偿的二维核磁共振测井数据高精度处理方法

doi:10.11938/cjmr20212964

波谱学杂志 ›› 2022, Vol. 39 ›› Issue (2): 174-183.doi: 10.11938/cjmr20212964

一种基于组分补偿的二维核磁共振测井数据高精度处理方法

王振林^1,²,张融¹,张妮³,蔺敬旗⁴,覃莹瑶⁵,陈刚^1,²,张宫^5,*()

1. 中国石油新疆油田分公司勘探开发研究院，新疆克拉玛依 834000
2. 中国石油大学（北京）石油工程学院，北京 102249
3. 中国石油集团测井有限公司地质研究院，陕西西安 710000
4. 中油测井新疆分公司，新疆克拉玛依 834000
5. 长江大学油气资源与勘探技术教育部重点实验室，湖北武汉 430100

收稿日期:2021-12-13 出版日期:2022-06-05 发布日期:2022-03-04
通讯作者: 张宫 E-mail:zhanggong@yangtzeu.edu.cn
基金资助:
中石油重大科技专项(2019E-26)

A High-precision Processing Method of Two-dimensional NMR Logging Data Based on Component Compensation

Zhen-lin WANG^1,²,Rong ZHANG¹,Ni ZHANG³,Jing-qi LIN⁴,Ying-yao QIN⁵,Gang CHEN^1,²,Gong ZHANG^5,*()

1. Exploration and Development Research Institute of PetroChina Xinjiang Oilfield Company, Karamay 834000, China
2. School of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China
3. Geological Research Institute, China Petroleum Logging Co. Ltd., Xi'an 710000, China
4. Xinjiang Branch, China Petroleum Logging Co. Ltd., Karamay 834000, China
5. Key Laboratory of Exploration Technologies for Oil and Gas Resources of Education Ministry, Yangtze University, Wuhan 430100, China

Received:2021-12-13 Online:2022-06-05 Published:2022-03-04
Contact: Gong ZHANG E-mail:zhanggong@yangtzeu.edu.cn

摘要/Abstract

摘要：

二维核磁共振技术能够对储层中各类含氢流体进行无损、快速、定量的测量和表征，但受限于采集方式和参数，核磁共振设备在对页岩油等致密储层中的有机质、沥青等超快弛豫组分进行检测时，经常出现由于信号采集不完整所导致的二维谱中流体组分缺失或不准的问题.本文提出了基于超快弛豫组分补偿技术的T₂-T₁二维谱高精度反演方法，该方法将一维核磁共振前端信号补偿技术进行推广，通过在二维核磁数据反演前对回波数据进行组分补偿，能够有效解决二维核磁共振测井前端信号漏失的问题.实验及测井数据的应用表明，该方法在页岩油等富含快弛豫组分信号的储层中，可以得到更加精准和完整的储层信息.

关键词: 二维核磁共振, 组分补偿, T₂-T₁, 页岩油

Abstract:

Two-dimensional nuclear magnetic resonance (NMR) technology can perform non-destructive, rapid and quantitative measurement and characterization of various hydrogen-containing fluids in the reservoir, but is limited by the acquisition methods and parameters of NMR equipment. In the detection of samples with ultra-fast relaxation components such as organic matter and asphalt, the problem of missing or inaccurate fluid components in two-dimensional spectrum due to incomplete signal acquisition often occurs. In this paper, a high-precision inversion method of T₂-T₁ two-dimensional spectrum based on ultrafast relaxation component compensation technology is proposed. This method extends the one-dimensional NMR front-end signal compensation technology. By compensating the components of the echo data before the inversion of two-dimensional NMR data, the problem of signal leakage at the front end of two-dimensional NMR logging can be effectively solved. The application of experiments and logging data shows that this method can obtain more accurate and complete reservoir information in shale oil and other reservoirs rich in signals of fast relaxation components.

Key words: 2D NMR, component compensation, T₂-T₁, shale oil

中图分类号:

TE112.6

王振林, 张融, 张妮, 蔺敬旗, 覃莹瑶, 陈刚, 张宫. 一种基于组分补偿的二维核磁共振测井数据高精度处理方法[J]. 波谱学杂志, 2022, 39(2): 174-183.

Zhen-lin WANG, Rong ZHANG, Ni ZHANG, Jing-qi LIN, Ying-yao QIN, Gang CHEN, Gong ZHANG. A High-precision Processing Method of Two-dimensional NMR Logging Data Based on Component Compensation[J]. Chinese Journal of Magnetic Resonance, 2022, 39(2): 174-183.

图/表 2

参考文献 16

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一种基于组分补偿的二维核磁共振测井数据高精度处理方法

A High-precision Processing Method of Two-dimensional NMR Logging Data Based on Component Compensation

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