Condensate-Banking Removal and Gas-Production Enhancement Using Thermochemical Injection: A Field-Scale Simulation
| Autor: | Ayman Al-Nakhli, Guenther Glatz, Mohamed Mahmoud, Amjed Hassan, Mohamed A. Abdalla, Abdulaziz Al-Majed |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Capillary pressure
Work (thermodynamics) 020209 energy Bioengineering 02 engineering and technology tight reservoirs lcsh:Chemical technology lcsh:Chemistry Viscosity 020401 chemical engineering field-scale simulation 0202 electrical engineering electronic engineering information engineering Chemical Engineering (miscellaneous) Plateau time Production (economics) gas recovery lcsh:TP1-1185 0204 chemical engineering Recovery performance chemistry.chemical_classification Petroleum engineering Process Chemistry and Technology Hydrocarbon chemistry lcsh:QD1-999 thermochemical treatment Treatment strategy Environmental science |
| Zdroj: | Processes, Vol 8, Iss 727, p 727 (2020) Processes Volume 8 Issue 6 |
| ISSN: | 2227-9717 |
| Popis: | Condensate-liquid accumulation in the vicinity of a well is known to curtail gas production up to 80%. Numerous approaches are employed to mitigate condensate banking and improve gas productivity. In this work, a field-scale simulation is presented for condensate damage removal in tight reservoirs using a thermochemical treatment strategy where heat and pressure are generated in situ. The impact of thermochemical injection on the gas recovery is also elucidated. A compositional simulator was utilized to assess the effectiveness of the suggested treatment on reducing the condensate damage and, thereby, improve the gas recovery. Compared to the base case, represented by an industry-standard gas injection strategy, simulation studies suggest a significantly improved hydrocarbon recovery performance upon thermochemical treatment of the near-wellbore zone. For the scenarios investigated, the application of thermochemicals allowed for an extension of the production plateau from 104 days, as determined for the reference gas injection case, to 683 days. This represents a 6.5-fold increase in production plateau time, boosting gas recovery from 25 to 89%. The improved recovery is attributed to the reduction of both capillary pressure and condensate viscosity. The presented work is crucial for designing and implementing thermochemical treatments in tight-gas reservoirs. |
| Databáze: | OpenAIRE |
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