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Keywords: co 2
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Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5447-MS
... Abstract Gas huff-n-puff is an attractive enhanced oil recovery process for shale oil and is being field tested by several companies. In this work, laboratory core-scale huff-n-puff studies were conducted using CO 2 and a hydrocarbon gas containing 60% methane, 35% ethane and 5% propane...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5451-MS
... issues; dynamic conditions will be tested in future. This study helps petroleum engineers design a successful application of nearly waterless fracturing fluid that also utilizes CO 2 . Introduction Foam is defined as a dispersion of gas bubbles in a continuous liquid phase. It is characterized using...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5223-MS
.../ residual carbon (S2b; 380-650 °C). A new model for quantifying rate-of-adsorption (ROA) of gas (N 2 /CO 2 ) was used to evaluate matrix permeability/diffusivity and the extent of surface diffusion in micro/mesopores before and after elution of the aforementioned components during pyrolysis. Scanning...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5233-MS
... Abstract CO 2 injection is a promising method for enhanced oil recovery (EOR) in unconventional liquid reservoirs. Addition of surfactants, which have been shown to improve oil recovery during water-based EOR, could also improve CO 2 EOR. Because oil and CO 2 are not fully miscible, even...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5309-MS
... as a strategy to enhance hydrocarbon recovery. The most common solvents used for HNP in tight oil reservoirs are CO 2 and lean gas, or a combination of both, due to their superior enhanced oil recovery (EOR) performance and potential environmental impacts (i.e., underground greenhouse gas sequestration). While...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5674-MS
..., porosity, pore throat size and specific surface area. The hydrocarbon species contained in the crude oil and the residual oil in the Eagle Ford sample were determined by Gas Chromatography-Mass Spectrometer (GC-MS) measurements. To identify the hydrocarbon species vaporizable during CO 2 Huff-n-Puff EOR...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5216-MS
... 5216 enhanced recovery steam-assisted gravity drainage experiment nanoparticle sagd upstream oil & gas treatment fluid pressure vessel oil recovery eagle ford buda limestone gas injection method co 2 investigation demonstrating enhanced oil recovery austin chalk URTeC: 5216...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5437-MS
... Abstract Growing concerns about greenhouse gas emissions threaten to reduce future demand for crude oil products. Emissions for light tight oil often start with associated gas. Rather than flare the stranded methane, an option may be to use it to power capturing carbon dioxide (CO 2 ) from...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2774-MS
... Abstract The objective of this work is to determine if the efficacy of CO 2 -based enhanced oil recovery (EOR) techniques for unconventional liquid reservoirs (ULRs) can be enhanced by adding a dilute concentration of a non-ionic wettability-altering surfactant to the CO 2 . Addition of ionic...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2998-MS
... agent and a surfactant in a low salinity brine. Outcrop Mancos core plugs were saturated with kerosene and CO 2 and chemical blend huff-n-puff experiments were conducted. Liquid volumes in the core plugs were evaluated using NMR, before and after huff-n-puff cycles. CO 2 Huff-n-Puff recovered 41...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-3048-MS
... to characterize and control in a laboratory setting, and are also challenging to implement in traditional numerical simulators. Here, we present a series of lattice Boltzmann simulations of CO 2 displacing brine in rough fractures with heterogeneous wettability. This extended abstract focuses on the application...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-3035-MS
... in terms of well placement and lateral trajectory. production control reservoir surveillance structural geology urtec 3035 water saturation toluene production monitoring completion installation and operations upstream oil & gas subsurface co 2 quantity log analysis complex reservoir...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2834-MS
... Abstract In shale oil reservoirs, cyclic CO 2 injection has proven to be effective at recovering significant amounts of oil, however, certain downsides to the use of CO 2 exist owing to its corrosive nature and its higher miscibility pressure compared to hydrocarbon gases such as ethane...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-3179-MS
... simulation predicts that the enhanced oil recovery efficiency of CO 2 huff-n-puff is unsatisfactory for the specific well in this work, which is also demonstrated in the field pilot test. However, the confinement effect results in a 1.14% elevation of the oil recovery factor in 10 years production...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-1074-MS
... Abstract One of the most significant problems facing the oil and gas industry nowadays is the environmental impact resulting from carbon dioxide (CO 2 ) emissions. One of the most important initiative in the industry therefore has become the carbon capture, utilization and storage (CCUS...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-1073-MS
... (EOR) is a method by which crude oil production can be increased from oil reservoirs. Many methods are available including chemical methods such as polymer, surfactant, and alkaline injection, thermal methods such as in situ combustion and steam flooding, and solvent injection such as methane and CO 2...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2559-MS
... Abstract With a high demand for an economic energy source but also a concern for increasing greenhouse gas emissions, there is growing consideration in shale production for processes including 1) enhancing hydrocarbon recovery via CO 2 flooding, 2) using CO 2 as a fracturing agent to reduce...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2675-MS
... for non-aqueous injecting fluids [5, 6]. Many fracturing fluid alternatives have been designed and tested over the years to increase reservoir productivity, reduce water requirements, and minimize environmental impacts [7, 8]. Commonly used fluids include CO 2 and N 2 in their different forms: energized...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2768-MS
... production drillstem/well testing operation bakken formation propane co 2 primary depletion gas injection method waterflooding breakthrough concentration bakken reservoir injection rate modeling & simulation complex reservoir upstream oil & gas field test north dakota incremental...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-3116-MS
... Abstract Mechanical changes take place in the process of saturating shale rock with CO 2 , which influences the storage capacity of the shale pores. X-ray diffraction (XRD), and gas adsorption (N 2 ) isotherm are some of the characterization approaches used on the shale rock to determine...

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