复杂储层多尺度数字岩石评价

朱如凯; 金旭; 王晓琦; 刘晓丹; 李建明; 孙亮; 吴松涛; 苏玲; 焦航; 崔景伟

doi:10.3799/dqkx.2018.429

Volume 43 Issue 5

May 2018

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Article Navigation > Earth Science > 2018 > 43(5): 1773-1782

Zhu Rukai, Jin Xu, Wang Xiaoqi, Liu Xiaodan, Li Jianming, Sun Liang, Wu Songtao, Su Ling, Jiao Hang, Cui Jingwei, 2018. Multi-Scale Digital Rock Evaluation on Complex Reservoir. Earth Science, 43(5): 1773-1782. doi: 10.3799/dqkx.2018.429

Citation:

Zhu Rukai, Jin Xu, Wang Xiaoqi, Liu Xiaodan, Li Jianming, Sun Liang, Wu Songtao, Su Ling, Jiao Hang, Cui Jingwei, 2018. Multi-Scale Digital Rock Evaluation on Complex Reservoir. Earth Science, 43(5): 1773-1782. doi: 10.3799/dqkx.2018.429

Citation:

Zhu Rukai, Jin Xu, Wang Xiaoqi, Liu Xiaodan, Li Jianming, Sun Liang, Wu Songtao, Su Ling, Jiao Hang, Cui Jingwei, 2018. Multi-Scale Digital Rock Evaluation on Complex Reservoir. Earth Science, 43(5): 1773-1782. doi: 10.3799/dqkx.2018.429

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Multi-Scale Digital Rock Evaluation on Complex Reservoir

doi: 10.3799/dqkx.2018.429

Zhu Rukai^{1,2,3
,},
Jin Xu^1,2,3,
Wang Xiaoqi^1,2,3,
Liu Xiaodan^1,2,3,
Li Jianming^1,2,3,
Sun Liang^1,2,3,
Wu Songtao^1,2,3,
Su Ling^1,2,3,
Jiao Hang^1,2,3,
Cui Jingwei^1,2,3

1.
PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China
2.
National Research Center of Tight Oil, Beijing 100083, China
3.
Key Laboratory of Oil and Gas Reservoirs, China National Petroleum Corporation, Beijing 100083, China

Received Date: 2017-07-18
Publish Date: 2018-05-15

Abstract

Abstract

Mineral compositions of complex reservoir are characterized by heterogeneity and small pore structure. Oil and gas exploration on complex reservoirs are determined by evaluations of reserving space, rock structure, fluid saturation and migration. Two-and three-dimensional space distribution of pore throat can be depicted precisely by multiscale CT and FIB-SEM, XRF and Qemscan can assess mineral compositions and distribution, fluid saturation and migration can be observed by multi-scale CT-ESEM, selecting sample target step by step, forming work flow on pore-mineral-fluid three-dimensional quantitative analysis, analysis scale across 6-7 orders of magnitude. Writing digital rock analysis software modules, dividing precisely micro pore throat three-dimensional distribution, assessing quantitatively on effective reservoir connectivity, establishing quantitative analysis methods of heterogeneity samples scales and pore-seam spatial configuration, can provide the basis for complex reservoir fluid percolation ability evaluation. To carry out the research on shale oil saturation and migration physical simulation which is based on nano porous materials, to compound adjustable nanomaterials in some respects such as pore size, wettability and surface microstructure, to imitate shale oil reservoir, we can find out the impact of each factor on shale oil saturation and pore size lower limit where fluid could migrate. Extracting key parameters based on hole network model of real core, carrying out the research on the best path of oil and gas migration using lattice boltzmann and finite element modelling, molecular simulation is used for the study on oil and gas aggregation mechanism and diffusion potential in inorganic and organic nano pores. Finally we could uncover the oil and gas flow mechanism in micro-nano reservoir space, and provide technical support for the effective assessment of shale oil and gas, tight sandstone and complex resesvoirs, and quantitative evaluation of oil-gas possibility.
- complex reservoir,
- reservoir space,
- rock structure,
- fluid character,
- digital rock,
- petroleum geology

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References(68)

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