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Keywords: recovery
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Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-169012-MS
... with potential benefit of enhanced gas recovery (EGR). The performance of CO 2 injection and CH 4 recovery in shale reservoirs is a complex function of several engineering parameters including fracture half-length, fracture conductivity, and fracture height, operating parameters such as injection volume...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-168984-MS
... Abstract In order to understand the effect of injected stimulation fluids on nano-darcy permeability, naturally fractured shale reservoirs, an integrated study of spontaneous imbibition has been performed. In this study, oil recovery during spontaneous imbibition in naturally fractured shale...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference-USA, April 10–12, 2013
Paper Number: SPE-164553-MS
... recovery factor is only 5-10% ( Hoffman, 2012 ). Enhanced oil recovery (EOR) by water flooding may be too slow because of the low injectivity of water. In contrast, it may be possible to inject CO 2 and N 2 due to their low viscosity. For instance, when pressure is higher than 1070 psi and temperature...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference-USA, April 10–12, 2013
Paper Number: SPE-164530-MS
... the gas flow and damage the reservoir. The water recovery in propped fractures is controlled by microscopic displacement efficiency and fracture areal sweep efficiency. Microscopic displacement efficiency is mainly controlled by capillarity, and has been studied extensively. Areal sweep efficiency during...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference-USA, April 10–12, 2013
Paper Number: SPE-164554-MS
... are hydrocarbon wet while IP pores have mixed wettability. Core pore fluids are not representative of in-situ conditions as the lighter portion of the hydrocarbons have been expelled during core recovery. Comparison between log and core measured NMR allows the quantification of the expelled hydrocarbon - those...
Proceedings Papers

Paper presented at the SPE Americas Unconventional Resources Conference, June 5–7, 2012
Paper Number: SPE-154981-MS
... until a pseudo-steady state is reached, Arps' harmonic decline ( b =1) would result in an inaccurate ultimate recovery. The modified decline curve function discussed above yields a satisfactory match with the computed data throughout the available history and, hence, is expected to result in a more...
Proceedings Papers

Paper presented at the SPE Americas Unconventional Resources Conference, June 5–7, 2012
Paper Number: SPE-155759-MS
... technologies were instrumental in addressing several completion design questions. Proppant tracers were used to evaluate cluster and stage spacing and also identified proppant interference with adjacent wells. Fluid tracers were utilized to evaluate overall load fluid recoveries for various wellbore...
Proceedings Papers

Paper presented at the North American Unconventional Gas Conference and Exhibition, June 14–16, 2011
Paper Number: SPE-144357-MS
... Matching historical performance and predicting future recovery is data and manpower intensive and often viewed as impractical for common business purposes. However, with fast, stable models and ever increasing machine speed, our experience has been that numerical simulation is a valuable tool...
Proceedings Papers

Paper presented at the Tight Gas Completions Conference, November 2–3, 2010
Paper Number: SPE-133806-MS
... solutions that also fell on the same “line-of-solutions.” A “root-of-time” plot of the 16-hour buildup indicated a fracture of infinite acting conductivity and no fracture face-skin damage. A “productive proportion” plot of the simulated fluid recovery vs. the ratio of conductive to created length was used...
Proceedings Papers

Paper presented at the SPE Tight Gas Completions Conference, June 15–17, 2009
Paper Number: SPE-125248-MS
... to facilitate placing the fracture stimulations, to increase effective fracture length, to minimize damage arising from operational shut-ins and to increase gas recovery of wells in which ME is used. The results of that investigation are relied upon in this study, as well. Similar studies have been...
Proceedings Papers

Paper presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference, June 16–19, 2008
Paper Number: SPE-114992-MS
... simulation and exploitation tools have been developed by the University of New South Wales and CSIRO to simulate the conventional CBM production as well as the CBM recovery using multi-component gases. In the field, Australia looks toward enhancing CBM recovery by injecting nitrogen and or carbon dioxide...
Proceedings Papers

Paper presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference, June 16–19, 2008
Paper Number: SPE-114645-MS
... for the recovery of Hydrocarbons. Significant technological achievements have been made in horizontal technology through a variety of innovations in tools, and experience gained over the past years. Unconventional drilling provides solutions to the recovery of oil from inaccessible areas in reservoirs such as un...
Proceedings Papers

Paper presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference, June 16–19, 2008
Paper Number: SPE-113487-MS
... packer port packer system horizontal completion fracture society of petroleum engineers lateral completion recovery reservoir multistage fracturing reservoir characterization petroleum engineer complex reservoir horizontal well plug completion installation and operations multi-stage...
Proceedings Papers

Paper presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference, June 16–19, 2008
Paper Number: SPE-113556-MS
... engineers. Over the years the various theoretical techniques for recovery of the gas hydrates are Lthermal injection 2.inhibitors 3.depressurization. However due to inefficient and economic unfeasibility it is difficult to recover the methane from gas hydrates. Low injectivity reservoir, small thickness...
Proceedings Papers

Paper presented at the SPE Unconventional Reservoirs Conference, February 10–12, 2008
Paper Number: SPE-114197-MS
... Abstract Commercial CBM production is almost exclusively through reservoir pressure depletion (primary recovery). Enhanced coalbed methane recovery (ECBM), involving injection of pure N 2 /CO 2 or a mixture of the two, such as power plant flue gas, is a technology that has the potential...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, May 15–17, 2006
Paper Number: SPE-100417-MS
... penetration. This phenomenon causes surfactants to adsorb or plate-out reducing their effectiveness in post fracturing fluid recovery. This study describes experimental and field case studies of various surfactants used in the oilfield. Several different surfactants including a nonionic ethoxylated linear...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, May 15–17, 2006
Paper Number: SPE-100563-MS
... spe 100563 compressible formation Ramagost saturation production control recovery OGIP equation reservoir surveillance correlation calculation Material Balance Equation formation compressibility production monitoring rigorous material balance equation ref Introduction There has...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, May 15–17, 2006
Paper Number: SPE-99647-MS
... matching pressure, gas production, liquid recovery and composition variation of produced gas histories, effects of production rate changes, dual porosity or dual permeability behavior of matrix-fracture system, nitrogen injection and cyclic production on ultimate condensate recovery were investigated...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, May 15–17, 2006
Paper Number: SPE-99445-MS
... Abstract To exploit the substantial tight-gas resources worldwide, hydraulic fracturing is, for many cases, economically a viable option. However, despite the state of the art techniques such as multiple fracturing of horizontal wellbores, the gas recovery from these reservoirs is frequently...

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