PDF(8256 KB)
Current situation and development trends of through-casing pulsed neutron saturation logging technology
QiFeng LENG, ZhongYuan TIAN, WenHuan LI, LiPing YI, ZhenYong XU
Prog Geophy ›› 2026, Vol. 41 ›› Issue (3) : 1190-1211.
PDF(8256 KB)
PDF(8256 KB)
Current situation and development trends of through-casing pulsed neutron saturation logging technology
The casing pulse neutron logging technology has demonstrated significant effectiveness in the dynamic monitoring of water-flooded layers,supplementing logging data from open-hole wells,and evaluating remaining oil,among other aspects of reservoir development and dynamic monitoring. It serves as a core method for evaluating remaining oil during the middle and later stages of oilfield development. This paper systematically reviews the principles and main interpretation methods of pulsed neutron logging and provides a comparative table of parameters and applications of nine mainstream domestic and international instruments (PNST,PSSL,PNN,RMT,RST,RPM,PNX,CRE,PND-S). The appendix summarizes their technical principles,structural characteristics,advantages,and limitations. Currently,mainstream foreign instruments have improved resolution through multi-probe integration and the adoption of new detector technologies,while domestic developments have achieved breakthroughs in independently developed instruments and dynamic correction algorithms. Although existing technologies are widely applied in the evaluation of remaining oil,identification of water-flooded layers,and monitoring of complex well completions,they still face challenges such as insufficient accuracy in low-permeability formations and interference from multiple factors during data acquisition and transmission. Future development trends focus on the integration of fiber optic technology and artificial intelligence with big data analytics to enhance data accuracy,timeliness,and the precision of interpretation models. Additionally,the application of this technology in unconventional oil and gas resources (e.g.,shale oil,tight gas) has contributed to more accurate exploration and development outcomes.
Casing well / Pulse neutron logging / Logging principle / Interpretation method / Optical fiber cables / Artificial intelligence and big data
|
|
|
|
|
Al-Qasim A, Mostefai I, Kokal S, et al. 2019. Formation evaluation using advanced pulsed neutron tools. //Proceedings of the SPE Gas & Oil Technology Showcase and Conference. Dubai: SPE, SPE-198541-MS.
|
|
|
|
Chang M Y. 2021. Study on water flooded zone evaluation of PNN+ saturation logging in Gasi Oilfield [Master's thesis](in Chinese). Wuhan: Yangtze University.
|
|
|
|
|
|
|
|
|
|
Deng R S. 2017. Research on the interpretation method of pulsed neutron energy spectrum logging [Master's thesis](in Chinese). Chengdu: Southwest Petroleum University.
|
|
|
|
|
|
|
|
Eltaher Y, Ma S X. 2023. Carbon/Oxygen spectral data processing, its affiliation to scintillation detector selectivity & their impact on reservoir saturation monitoring, lessons learnt and recommended workflow. //Proceedings of the SPE Reservoir Characterisation and Simulation Conference and Exhibition. Abu Dhabi: SPE, SPE-212613-MS.
|
|
Fang Q W. 2022. Study on neutron diffusion mechanism for three-detector PNC logging and its application [Master's thesis](in Chinese). Qingdao: China University of Petroleum.
|
|
|
|
|
|
Gilchrist Jr W A, Pemper R R, Treka D, et al. 2000. Initial field applications of a new 1.7-inch pulsed neutron instrument. //Proceedings of the SPWLA 41st Annual Logging Symposium. Dallas: SPWLA, SPWLA-2000-FF.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Luo C X. 2021. Research on gas reservoir evaluation of RPM logging inYaha oil and gas field [Master's thesis](in Chinese). Wuhan: Changjiang University.
|
|
|
|
Odom R C, Streeter R W, Hogan G P, et al. 1994. A new 1.625″ diameter pulsed neutron capture and inelastic/capture spectral combination system provides answers in complex reservoirs. //Proceedings of the SPWLA 35th Annual Logging Symposium. Tulsa: SPWLA, SPWLA-1994-O.
|
|
|
|
|
|
|
|
Radtke R J, Lorente M, Adolph B, et al. 2012. A new capture and inelastic spectroscopy tool takes geochemical logging to the next level. //Proceedings of the SPWLA 53rd Annual Logging Symposium. Cartagena: SPWLA, SPWLA-2012-103.
|
|
Rose D, Zhou T, Beekman S, et al. 2015. An innovative slim pulsed neutron logging tool. //Proceedings of the SPWLA 56th Annual Logging Symposium. Long Beach: SPWLA, SPWLA-2015-XXXX.
|
|
Saumya S, Naqeeb I, Vij J, et al. 2019. Saturation forecast using machine learning: enabling smarter decision-making capabilities. //Proceedings of the Abu Dhabi International Petroleum Exhibition & Conference. Abu Dhabi: SPE, SPE-197419-MS.
|
|
|
|
|
|
|
|
|
|
Simpson G A, Truax J A, Younse G A. 2001. Field experience with a new carbon/oxygen logging system in complex wellbore and formation conditions. //Proceedings of the SPE Annual Technical Conference and Exhibition. New Orleans: SPE, SPE-71718-MS.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Wang Y J, Ning W D, Zhang N, et al. 2018. Evaluation method of remaining oil distribution based on reservoir properties. //2018 IFEDC International Conference on Oil and Gas Field Exploration and Development. Xi'an: Xi'an University of Petroleum, Shaanxi Petroleum Society (in Chinese).
|
|
|
|
Wang Z, Xu F, Jia H L, et al. 2021. Development of a pulsed neutron source super remote distance probe saturation logging tool. //2021 International Conference on Oil and Gas Field Exploration and Development. Qingdao: Xi'an University of Petroleum, China University of Petroleum (East China), Shaanxi Petroleum Society (in Chinese), 792-798.
|
|
|
|
Xia W W, Wu K M, Fang F, et al. 2022-11-18. Logging cable for compensated neutron instrument: CN217847514U (in Chinese).
|
|
Xie B, Fan J L, Zhang F. 2022. An enhanced method for gas evaluation by pulsed neutron logging technology in tight reservoirs. //Proceedings of the 2nd International Meeting for Applied Geoscience & Energy. Houston: IMAGE, image2022-3740997.1.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
常明阳. 2021. 尕斯油田PNN+饱和度测井水淹层评价研究[硕士论文]. 武汉: 长江大学.
|
|
|
|
|
|
|
|
|
|
邓仁双. 2017. 脉冲中子能谱测井解释方法研究. 成都: 西南石油大学.
|
|
|
|
|
|
|
|
方群伟. 2022. 三探测器PNC测井中子扩散机理及应用研究[硕士论文]. 青岛: 中国石油大学.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
罗陈翔. 2021. 牙哈油气田RPM测井气层评价研究[硕士论文]. 武汉: 长江大学.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
王英杰, 宁卫东, 张宁, 等. 2018. 基于储层物性的剩余油分布评价方法研究. //2018IFEDC油气田勘探与开发国际会议. 西安: 西安石油大学, 陕西省石油学会.
|
|
|
|
|
|
王卓, 徐菲, 贾慧丽, 等. 2021. 脉冲中子源超远探头饱和度测井仪研发. //2021油气田勘探与开发国际会议. 青岛: 西安石油大学, 中国石油大学(华东), 陕西省石油学会, 792-798.
|
|
|
|
夏文伟, 吴开明, 方峰, 等. 2022-11-18. 补偿中子仪器用测井电缆: CN217847514U.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
感谢审稿专家提出的修改意见和编辑部的大力支持!
/
| 〈 |
|
〉 |