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Article

Consistency Checks for Pressure-Volume-Temperature Experiment of Formation Oil and Gas at High Temperature

1
State Key Laboratory of Petroleum and Prospecting, China University of Petroleum, Beijing 102249, China
2
Tarim Oilfield Company, PetroChina, Korla 841000, China
3
Research Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi’an 710018, China
*
Authors to whom correspondence should be addressed.
Processes 2023, 11(9), 2727; https://doi.org/10.3390/pr11092727
Submission received: 23 August 2023 / Revised: 8 September 2023 / Accepted: 11 September 2023 / Published: 12 September 2023

Abstract

The oil and gas phase behavior of high temperature is complex and changeable, which is usually obtained by PVT experiments. The accuracy of the experiment data plays a crucial role in the reserve evaluation and development plan of oil and gas reservoirs. However, the current PVT experiment consistency checks are not suitable for high-temperature reservoir conditions. This paper proposes a systematic check method for the PVT experiment data consistency at high temperature. These checks revise the material balance method, Hoffman method, and equilibrium constant method by using the equilibrium constant calculation method at high temperature. The consistency check of component data and constant volume depletion experiment data is carried out by combining the three improved methods with the component check method, so as to judge the experiment data accurately. In this paper, two high-temperature reservoir fluids—gas condensate sample fluid X and volatile oil sample fluid Y—are selected to carry out consistency checks with component data and constant volume depletion data. This check method is of great significance to study the phase behavior of formation oil and gas at high temperature, especially for volatile oil and gas condensate fluid.
Keywords: high temperature; PVT experiment; volatile oil; gas condensate; consistency check high temperature; PVT experiment; volatile oil; gas condensate; consistency check

Share and Cite

MDPI and ACS Style

Zhao, L.; Zhang, Y.; He, Y.; Shi, J.; Wang, X.; Song, J.; Yu, H. Consistency Checks for Pressure-Volume-Temperature Experiment of Formation Oil and Gas at High Temperature. Processes 2023, 11, 2727. https://doi.org/10.3390/pr11092727

AMA Style

Zhao L, Zhang Y, He Y, Shi J, Wang X, Song J, Yu H. Consistency Checks for Pressure-Volume-Temperature Experiment of Formation Oil and Gas at High Temperature. Processes. 2023; 11(9):2727. https://doi.org/10.3390/pr11092727

Chicago/Turabian Style

Zhao, Libin, Yongling Zhang, Yuanyuan He, Jianchao Shi, Xiaopei Wang, Jiabang Song, and Haiyang Yu. 2023. "Consistency Checks for Pressure-Volume-Temperature Experiment of Formation Oil and Gas at High Temperature" Processes 11, no. 9: 2727. https://doi.org/10.3390/pr11092727

APA Style

Zhao, L., Zhang, Y., He, Y., Shi, J., Wang, X., Song, J., & Yu, H. (2023). Consistency Checks for Pressure-Volume-Temperature Experiment of Formation Oil and Gas at High Temperature. Processes, 11(9), 2727. https://doi.org/10.3390/pr11092727

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