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Keywords: breakthrough
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-215061-MS
... of each compartment’s contribution during the cleanup and production phases. Tracer samples indicated a good cleanup, and the initial well performance was observed to have no water production. A few months after the cleanup was performed, water breakthrough occurred, and tracer analysis was used...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-215116-MS
... flowing compositions. In addition, remarkably accurate allocation of reservoir fluid and injection gas production was achieved. Early gas breakthrough in Gina Krog oil wells had been observed just months after production start-up and even before gas injection started. This created challenges when it comes...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214956-MS
...40 weight% lactic acid at 240 °F The acid efficiency curve for experiments run with 40 wt% lactic acid at 240 °F is shown in Fig. 7 . Similar to the results obtained at 150 °F, the pore volumes to breakthrough for this acid system is insensitive to acid flux over a range of fluxes of almost...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214973-MS
... geologist geology subsurface storage upstream oil & gas flow in porous media enhanced recovery miscible method geological subdiscipline chemical flooding methods fluid dynamics united states government co 2 surfactant foam strength application breakthrough concentration...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214986-MS
...Introduction An economically viable lifecycle of the gas wells operation is oftentimes drastically shortened by the breakthrough of formation water into the well. Most often, formation water is found in lower zones of gas, gas-condensate or gas-hydrate formations. However, in some cases...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-215024-MS
... carbon storage. For improving CO 2 mobility control and thus improved reservoir sweep efficiency, Water-Alternating-Gas (WAG) injection has often been applied. The effectiveness of WAG diminishes, however, due to the presence of micro-scale reservoir heterogeneity which results in an early breakthrough...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214812-MS
... the miscible gas injection operation. Over the course of production, ‘Reservoir A’ is experiencing a gradual GOR increase. The GOR evolution could be the result of different physical mechanisms, such as production below bubble point, gas coning, or miscible gas breakthrough. In the latter case, it is not clear...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-217481-STU
... nanoparticle experiment nanofoam reservoir chemical flooding methods concentration nanoparticle concentration silica nanoparticle enhanced recovery co 2 surfactant half-life foam injection artificial intelligence stability foam stability breakthrough efficiency Introduction...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214779-MS
... to CO 2 sequestration. carbonate reservoir geologist sedimentary rock united states government wormhole reservoir characterization sciencedirect aquifer breakthrough upstream oil & gas complex reservoir europe government geological subdiscipline injection brine limestone...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214821-MS
... of injection rate and acid concentration, increasing the system pressure from 1,500 to 7,000 psi caused a 50% reduction in the acid volume needed to achieve breakthrough indicating an improvement in the acid penetration rate into the rock. At injection rate of 5 ml/min and under a pressure of 5,000 psi, 15 wt...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214835-MS
... of polymers in porous media that the polymers can bypass small pores, i.e., the inaccessible pore volume (IPV), resulting in accelerated breakthrough. In contrast, small molecular tracers will flow through all pores without accelerated breakthrough. By comparing the breakthrough curves of the polymeric...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214842-MS
... result in early breakthrough and low sweep efficiency. Cumulative brine production is approximately 30% (from fraction collector) and 35% (from X-ray CT imaging) at 2 PVI. The difference between the two is attributed to the solubility of the produced water in the produced CO 2 at atmospheric pressure...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210060-MS
... a variety of wells. In this instance the gas molar compositions were similar so the only means to identify injection gas breakthrough in producing wells was by the CS-IRMS analysis technique. Complete physiochemical and water isotope ratio (δ 18 O and δ 2 H) analysis also show contrasting signatures between...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210255-MS
... intelligence screen selection sand control production control production monitoring machine learning contour survival dataset drillstem testing completion cofactor application breakthrough petroleum engineer percentile probability exhibition th percentile producer information spe annual...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210289-MS
... Abstract Water control in mature heavy-oil reservoirs is a well-known challenge in the Oil & Gas industry. Due to the mobility ratio, water tends to flow much easier compared to oil, leading to premature water breakthrough which pushes water cut values to over 95% or more within weeks...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210124-MS
... ). Studies on evaluation of foam effect on the mobility control in CO 2 flooding are very limited as a secondary recovery technique. Almost all of the core flooding investigations are conducted in a tertiary recovery mode. Abstract Modification of CO 2 mobility to prevent premature breakthrough...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210117-MS
... Plots were used to identify candidates (26 injectors supporting 300 + producers) and channel volumes. Gel strength of crosslinked acrylamide-polymer (4000-15000 PPM concentrations) was monitored using Sydansk grading. During the treatment, offsets were monitored for polymer breakthrough using...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206164-MS
... ( Alvarado et al. 2014 ; Chavez-Miyauchi et al. 2016 ) and results in a lower residual oil saturation. In addition to decreasing residual oil saturation, one may also desire to increase recovery at breakthrough from improved sweep efficiency. Mobility control can be achieved by increasing the viscosity...

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