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Gas Production from Gas Condensate Reservoirs Using Sustainable Environmentally Friendly Chemicals

1
College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
2
Saudi Aramco, Dhahran 31311, Saudi Arabia
*
Author to whom correspondence should be addressed.
Sustainability 2019, 11(10), 2838; https://doi.org/10.3390/su11102838 (registering DOI)
Received: 4 May 2019 / Revised: 14 May 2019 / Accepted: 15 May 2019 / Published: 18 May 2019
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Abstract

Unconventional reservoirs have shown tremendous potential for energy supply for long-term applications. However, great challenges are associated with hydrocarbon production from these reservoirs. Recently, injection of thermochemical fluids has been introduced as a new environmentally friendly and cost-effective chemical for improving hydrocarbon production. This research aims to improve gas production from gas condensate reservoirs using environmentally friendly chemicals. Further, the impact of thermochemical treatment on changing the pore size distribution is studied. Several experiments were conducted, including chemical injection, routine core analysis, and nuclear magnetic resonance (NMR) measurements. The impact of thermochemical treatment in sustaining gas production from a tight gas reservoir was quantified. This study demonstrates that thermochemical treatment can create different types of fractures (single or multistaged fractures) based on the injection method. Thermochemical treatment can increase absolute permeability up to 500%, reduce capillary pressure by 57%, remove the accumulated liquids, and improve gas relative permeability by a factor of 1.2. The findings of this study can help to design a better thermochemical treatment for improving gas recovery. This study showed that thermochemical treatment is an effective method for sustaining gas production from tight gas reservoirs. View Full-Text
Keywords: gas production; gas condensate reservoirs; tight formations; thermochemical fluids gas production; gas condensate reservoirs; tight formations; thermochemical fluids
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Hassan, A.M.; Mahmoud, M.A.; Al-Majed, A.A.; Al-Shehri, D.; Al-Nakhli, A.R.; Bataweel, M.A. Gas Production from Gas Condensate Reservoirs Using Sustainable Environmentally Friendly Chemicals. Sustainability 2019, 11, 2838.

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