Numerical Simulation of Carbon Oxygen Ratio Logging Response in Natural Gas Hydrate Reservoirs

Qing Jiang; Pengju Li

doi:10.54097/ije.v2i3.8766

Authors

Qing Jiang
Pengju Li

DOI:

https://doi.org/10.54097/ije.v2i3.8766

Keywords:

Natural Gas Hydrate, Carbon Oxygen Ratio Logging, Monte Carlo Numerical Simulation, Carbon Oxygen Counting Ratio

Abstract

In the process of oil and gas field development, in order to identify the gas hydrate reservoir more accurately, we try to use the carbon oxygen ratio spectrum logging technology to study the log response law of this reservoir, and compare it with the reservoir response law to better guide the oil field production. Firstly, the theoretical response law of carbon and oxygen concentration ratio of natural gas hydrate reservoir and oil layer is deduced according to the petrophysical model, and then the response law of carbon and oxygen concentration ratio of two types of reservoirs simulated by Monte Carlo numerical simulation is studied, and the similarity law and difference between the two types of reservoirs are summarized. The results show that the carbon oxygen ratio has a regular change relationship with the porosity and saturation of the reservoir. The carbon oxygen ratio can be used to preliminarily distinguish and qualitatively identify the two types of reservoirs.

Downloads

Download data is not yet available.

References

He Meixing, Fang Hui, Zhu Youhai, et al. Study on tectonics characteristics and geological conditions of gas hydrate accumulation in Hala Lake Depression of Qilian Mountains [J]. Geology of China, 2020, 47 (1): 173-187.

Wang Pingkang, You Hai, Lu Zhenquan, et al. Review of research progress on natural gas hydrates in the permafrost areas of the Qilian Mountains in Qinghai [J]. Chinese Science: Physics, Mechanics, Astronomy, 2019, 49 (3): 72-91.

Wu Shuyu, Xu Huaning, Liu Jun, et al. Frequency division inversion of heterogeneous natural gas hydrate reservoirs in the Shenhu Sea area of the South China Sea [J]. Marine Geology and Quaternary Geology, 2020, 40 (6): 106-120.

Collett T S, Wendlandt R F. Formation evaluation of gas hydrate-bearing marine sediments on the blake ridge with down geochemical log measurements[C].Proceeding of the Ocean Driling Program, Scientific Results, 2000.

Zhou Yinhang, Ma Yugang, Zhao Guangyi Method for detecting natural gas hydrates using carbon oxygen ratio spectroscopy [J]. Offshore Oil, 2006 (1): 47-50.

Liu Juntao, Zhang Feng, Zhang Quanying, Hou Guojing, Zhang Haoping, Ding Fan Method for Improving the Sensitivity of Carbon Oxygen Ratio Logging in Low Porosity Reservoirs [J]. Journal of China University of Petroleum (Natural Science Edition), 2016,40 (06): 57-62.

Li Pengju, Tian Tian, Wei Shuangbao Interpretation model for carbon oxygen ratio logging of natural gas hydrate saturation [J]. Journal of Heilongjiang University of Science and Technology, 2021,31 (03): 289-294.

Ma Shuilong, Shen Fujian, Wu Zhimin, Wang Feng, Zheng Hua The New Application of PNST Pulse Neutron Full Spectrum Logging Tool in Jidong Oilfield [J]. Petroleum Pipe and Instrument, 2018,4 (05): 27-31.

Sun Jianmeng, Luo Hong, Jiao Tao, Chen Hua, Song Liyuan, Xiong Zhu Overview of logging evaluation of gas hydrate reservoir parameters [J]. Progress in geophysics, 2018,33 (02): 715-723.

Tian Tian. Research on Pulse Neutron Carbon Oxygen Ratio Logging Method for Natural Gas Hydrate Reservoirs [D]. Northeast Petroleum University, 2021.

Wang Ruigang Research on New C/O Spectral Logging Data Processing Methods [D]. China University of Petroleum (Beijing), 2018.

Briesmeister J F.MCNP-A General Monte Carlo N-Particle Transport Code[C].Version 4C, RA-13709-M, Los Alamos: Los Alamos National Laboratory, 2003.

Zhang Feng. Overview of the Development of Pulse Neutron Logging Technology in China [J]. Atomic Energy Science and Technology. 2009, 43 (Supplement): 116-123.