The microscopic mechanism of operating loss in underground gas storage rebuilt from water-drive gas reservoir

SHI Lei; SHAO Longyi; WANG Jieming; ZHU Huayin

doi:10.6047/j.issn.1000-8241.2018.06.010

Oil & Gas Storage and Transportation > 2018 > 37(6): 658-663. > DOI: 10.6047/j.issn.1000-8241.2018.06.010

SHI Lei, SHAO Longyi, WANG Jieming, ZHU Huayin. The microscopic mechanism of operating loss in underground gas storage rebuilt from water-drive gas reservoir[J]. Oil & Gas Storage and Transportation, 2018, 37(6): 658-663. DOI: 10.6047/j.issn.1000-8241.2018.06.010

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The microscopic mechanism of operating loss in underground gas storage rebuilt from water-drive gas reservoir

SHI Lei^{1, 2, 3,},
SHAO Longyi¹,
WANG Jieming^{2, 3},
ZHU Huayin^{2, 3}

1.
China University of Mining and Technology
2.
PetroChina Research Institute of Petroleum Exploration and Development
3.
CNPC Key Laboratory of Underground Oil/Gas Storage

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Received Date: October 18, 2016
Revised Date: March 27, 2018
Available Online: August 20, 2023
Published Date: March 28, 2018

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Abstract

Abstract

Microscopic mechanism of operating loss in underground gas storage (UGS) plays a key role in investigating the damage of water intrusion to the reservoir during the cyclic injection-production operation of water-drive gas reservoir UGS. Considering the effect of the moving back and forth of the water during UGS high-speed injection-production operation, UGS cyclic injection-production simulation NMR and microscopic visualization simulation technology were used jointly to investigate the distribution and migration characteristics of two-phase fluid in microscopic pores of UGS, analyze the utilization characteristics of underground reservoir space quantitatively and evaluate the microscopic mechanism and main controlling factors of operating loss in the water-drive gas reservoir UGS. It is indicated that the gas-water transition zone is the core region of operating loss during the injection-production operation of water-drive gas reservoir UGS and the watergas interlocking is in close relation with UGS injection-production loss. The research results provide the technical support and important basis for the optimization of injection-production operation scheme of water-drive gas reservoir UGS.

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References

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