..., water-oil, surfactant solution-oil, and CO 2 -oil relative permeability were computed, as well as primary depletion followed with three-cycle CO 2 huff-n-puff, and primary depletion followed with three-cycle surfactant solution huff-n-puff processes. Recovery factors were obtained for each method...

... were observed for samples exposed to CO 2 , however the samples exposed to CO 2 -surfactant solution revealed a significant shift toward water-wet. Two CO 2 huff ‘n puff experiments were then conducted for small, oil-saturated shale cores at 80 °C and 4000 psi. Faster oil recovery (i.e. more oil...

... and 6-cycle CSI performances were followed as post-CHOPS with different well patterns (central, peripheral, all-wells). As a result of these experiments, methane showed about 14% oil recovery, but with additional CO 2 huff ‘n’ puff around 15% recovery was added, totaling 29% recovery. Methane-propane...

... wells; waterflooding; huff ‘n’ puff steam injection; steam drive; and horizontal well drilling. The project resulted in the identification of more than 100 infill or recompletion candidates, and an estimated three million barrels of oil (MMBO) of additional recovery during the first 2 years...

... CO2 huff 'n' puff operation because cyclic economics could be evaluated quickly. Several concerns were identified in the beginning stages of project design. CO2 injection rate would be limited by production supply. Natural fractures would cause conformance problems. The distribution of remaining oil...

... analysis of near wellbore properties. The application of the decline curve analysis is shown for several published and unpublished CO2 Huff-Puff projects. The numeric published and unpublished CO2 Huff-Puff projects. The numeric models are described for successful and unsuccessful field trials...

... SPE Members Abstract This paper presents results of an experimental and numerical investigation of the CO2 huff 'n' puff process for the enhanced recovery of light oil. The objective of the investigation was to increase our basic understanding of the process by examining the effects of a gas...