Keywords and Phrases
EUR; Low-permeability Reservoir; RCPS; Repeated Cyclic Production Scheme; Shutin Cycles; Unconventional Reservoir
"Productivity in low-permeability reservoirs declines quickly compared to conventional reservoirs. These tight reservoirs have very high initial oil production rates but as soon as the oil near the fractured area is recovered, the production declines rapidly making economic oil and gas production a challenge for the industry. This study investigates the impact of repeated shut-in/production cycles on the ultimate recovery of oil in such environments.
A reservoir model with multiple fractured horizontal well having 30 transverse fractures is created using CMG. Reservoir permeability is varied over the range of 0.000001 md to 10 md and shut-in/production cycles of 2-weeks, 1-month, 6-months and 1-year are introduced in a systematic way. Results of the simulations are presented as normalized recovery versus shut-in/production cycle duration, where normalized recovery is expected ultimate recovery (EUR) from any case divided by the EUR in the case without any shut-in/production cycle.
A second reservoir model having two multiple fractured horizontal wells adjacent to each other is also created. This model simulates a field scenario with multiple wells and proposes a way of introducing this production technique in an industry accepted form, which enables continuous production along with the added benefits from shut-in/production cycles.
Results from this work show that ultimate recovery of oil can be improved in some cases, by introducing systematic shut-in/production cycles"--Abstract, page iii.
Britt, Larry K.
Flori, Ralph E.
Geosciences and Geological and Petroleum Engineering
M.S. in Petroleum Engineering
Missouri University of Science and Technology
x, 62 pages
© Samarth Gupte
Thesis - Open Access
Library of Congress Subject Headings
Reservoirs -- Permeability
Horizontal oil well drilling
Oil fields -- Production methods
Gas reservoirs -- Permeability
Electronic OCLC #
Gupte, Samarth, "Impact of repeated cyclic production scheme on EUR in low-permeability reservoirs" (2016). Masters Theses. 7600.