Special Oil & Gas Reservoirs >

2023 , Vol. 30 >Issue 1: 93 - 99

DOI: https://doi.org/10.3969/j.issn.1006-6535.2023.01.013

Reservoir Engineering

Consistency Test Method for Phase State Test of Formation Oil and Gas at High Temperature

  • Song Jiabang ,
  • Yu Haiyang ,
  • Wang Songchen ,
  • Liu Jinbo ,
  • Hu Jiang ,
  • Wang Yang ,
  • Zhao Libin
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  • 1. State Key Laboratory of Oil and Gas Resources and Exploration of China University of Petroleum (Beijing), Beijing 102249, China;
    2. PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China;
    3. PetroChina Tarim Oilfield Company, Korla, Xinjiang 841000, China

Received date: 2022-04-03

  Revised date: 2022-10-20

  Online published: 2023-03-24

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Abstract

Since the PVT test consistency test method is inapplicable to high-temperature reservoirs, a systematic test method was proposed for the consistency of phase state test results in high-temperature hydrocarbon reservoirs, in which the equilibrium constant calculation method at high temperature was used to modify the material balance method, Hoffman method and equilibrium constant method, and to test the consistency between the component data of the phase state test and the constant-volume depletion test data with such two methods and the component verification method, so as to judge the test results more accurately. A consistency test was conducted between the component data and the constant-volume depletion test data of two fluid samples taken from high-temperature hydrocarbon reservoir, namely Condensate Gas Sample A from Well Bozi 104 and Volatile Oil Sample B from Well Bozi 7 in Tarim Oilfield. The results verified the validity and reliability of the method in this paper. This study is important to clarify the phase characteristics of formation oil and gas, especially volatile oil and condensate gas at high temperature.

Key words： High temperature; PVT test; condensate gas; volatile oil; consistency test

Cite this article

Song Jiabang , Yu Haiyang , Wang Songchen , Liu Jinbo , Hu Jiang , Wang Yang , Zhao Libin . Consistency Test Method for Phase State Test of Formation Oil and Gas at High Temperature[J]. Special Oil & Gas Reservoirs, 2023 , 30(1) : 93 -99 . DOI: 10.3969/j.issn.1006-6535.2023.01.013

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