Method for optimization of huff-n-puff gas injections in hydrocarbon reservoirs
Abstract
Methods for optimization of liquid oil production by huff-n-puff in shale reservoirs to achieve an improved (and optimal) oil recovery factor. The process determines and utilizes the optimum huff and puff times, number of cycles and soaking time under practical operation and reservoir conditions. The huff time in the process is a period so long that the pressure near the wellbore reaches the set maximum injection pressure during the huff period. The puff time in the process is the time required for the pressure near the wellbore to reach the set minimum production pressure during the puff period. Soaking is typically not necessary during the huff-n-puff gas injection in shale oil reservoirs. The number of huff-n-puff cycles is determinable by the time in which the economic rate cut-off is reached.
- Inventors:
- Issue Date:
- Research Org.:
- Texas Tech Univ., Lubbock, TX (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1823965
- Patent Number(s):
- 11008840
- Application Number:
- 16/694,817
- Assignee:
- Texas Tech University System (Lubbock, TX)
- DOE Contract Number:
- FE0024311
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 11/25/2019
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Sheng, James J. Method for optimization of huff-n-puff gas injections in hydrocarbon reservoirs. United States: N. p., 2021.
Web.
Sheng, James J. Method for optimization of huff-n-puff gas injections in hydrocarbon reservoirs. United States.
Sheng, James J. Tue .
"Method for optimization of huff-n-puff gas injections in hydrocarbon reservoirs". United States. https://www.osti.gov/servlets/purl/1823965.
@article{osti_1823965,
title = {Method for optimization of huff-n-puff gas injections in hydrocarbon reservoirs},
author = {Sheng, James J.},
abstractNote = {Methods for optimization of liquid oil production by huff-n-puff in shale reservoirs to achieve an improved (and optimal) oil recovery factor. The process determines and utilizes the optimum huff and puff times, number of cycles and soaking time under practical operation and reservoir conditions. The huff time in the process is a period so long that the pressure near the wellbore reaches the set maximum injection pressure during the huff period. The puff time in the process is the time required for the pressure near the wellbore to reach the set minimum production pressure during the puff period. Soaking is typically not necessary during the huff-n-puff gas injection in shale oil reservoirs. The number of huff-n-puff cycles is determinable by the time in which the economic rate cut-off is reached.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {5}
}