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Keywords: recovery
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Proceedings Papers
Understanding the Mechanisms of Huff-n-Puff, CO2-EOR in Liquid-Rich Shale Plays: Bakken Case Study
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Canada Unconventional Resources Conference, September 28–October 2, 2020
Paper Number: SPE-200001-MS
... illustrated promising results in terms of recovery factor for different EOR applications, such as CO 2 , surfactant, and natural gas. However, pilot tests performance reported contrast behavior due to misleading predicting for the EOR physics processes. This paper presents the experimental work to evaluate...
Proceedings Papers
Material Balance Forecast of Huff-and-Puff Gas Injection in Multiporosity Shale Oil Reservoirs
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Canada Unconventional Resources Conference, March 13–14, 2018
Paper Number: SPE-189783-MS
... Abstract Primary oil recovery from shales is very low, rarely exceeding 10% of original oil in place (OOIP). The low recovery has aroused a recent and growing interest in the petroleum industry for using Improved Oil Recovery (IOR) methods in shales. This paper presents a new semi-analytical...
Proceedings Papers
Enhancing Oil Recovery by Adding Surfactants in Fracturing Water: A Montney Case Study
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Canada Unconventional Resources Conference, March 13–14, 2018
Paper Number: SPE-189829-MS
... the leak-off and flowback processes. To evaluate the effects of surfactant solutions on the formation damage reduction we 1) measure the pressure drop across the core plug during both leak-off and flowback processes, and 2) evaluate the oil recovery factor during the leak-off process. The results...
Proceedings Papers
Nano-Particle Surfactant in Hydraulic Fracturing Fluids for Enhanced Post Frac Oil Recovery
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Canada Unconventional Resources Conference, March 13–14, 2018
Paper Number: SPE-189780-MS
... Abstract Due to the mixed-wettability phenomenon found in Montney rock fabric, choosing the ideal flowback enhancer/surfactant to Enhance Post Frac Oil Recovery (EPFOR), has not been a straightforward task. Along with the wettability ambiguity, Montney exhibits nano-Darcy permeability making...
Proceedings Papers
Permanently Sequester Anthropogenic Carbon Dioxide - Through Hydraulic Fracturing
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Unconventional Resources Conference, February 15–16, 2017
Paper Number: SPE-185033-MS
... since the 1950's. The unique physical properties of CO 2 allow for easy transport in pipelines as a gas, or by transport truck as a cold liquid. Oilfield uses include: a gaseous agent to assist in fluid recovery from the wellbore, a component in hydraulic fracture fluids, an enhanced oil recovery (EOR...
Proceedings Papers
Factors Affecting Huff-n-Puff Efficiency in Hydraulically-Fractured Tight Reservoirs
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Unconventional Resources Conference, February 15–16, 2017
Paper Number: SPE-185062-MS
... Abstract Evaluation of enhanced liquid recovery from tight or shale reservoirs is currently of great interest to operators. One reason is the low primary oil recovery of tight/shale reservoirs, which ranges between 5-10% ( Shoaib and Hoffman, 2009 ) even after expensive multi-stage hydraulic...
Proceedings Papers
EOR in Tight Reservoirs, Technical and Economical Feasibility
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Unconventional Resources Conference, February 15–16, 2017
Paper Number: SPE-185037-MS
... the objectives, both black oil and compositional simulation models were generated for a Western Canadian tight reservoir containing volatile oil. In addition to primary, the EOR recovery processes that were considered include waterflooding, immiscible-N 2 and miscible-CO 2 gas flooding. Combinations...
Proceedings Papers
Adsorbed Gas Composition, and its Impact on Early Time Production
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Unconventional Resources Conference, February 15–16, 2017
Paper Number: SPE-185045-MS
... recovery reservoir simulation organic matter adsorbed gas storage capacity gas injection method isotherm composition dewpoint fracture society of petroleum engineers Duvernay free gas Langmuir pressure recovery Introduction In recent years, industry activity within North America has...
Proceedings Papers
Measured Crude Oil MMPs with Pure and Mixed CO 2 , Methane, and Ethane, and Their Relevance to Enhanced Oil Recovery from Middle Bakken and Bakken Shales
Available to PurchaseSteven B. Hawthorne, David J. Miller, Carol B. Grabanski, Jim A. Sorensen, Lawremce J. Pekot, Bethany A. Kurz, Charles D. Gorecki, Edward N. Steadman, John A. Harju, Stephen Melzer
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Unconventional Resources Conference, February 15–16, 2017
Paper Number: SPE-185072-MS
... Abstract Enhanced oil recovery (EOR) processes using CO 2 in tight unconventional plays like the Bakken Formation are expected to be very different from the processes which control EOR in conventional reservoirs. During CO 2 EOR in conventional reservoirs, CO 2 flows through the permeable...
Proceedings Papers
Integrating Petrographic and Petrophysical Analyses with CO 2 Permeation and Oil Extraction and Recovery in the Bakken Tight Oil Formation
Available to PurchaseSteven B. Hawthorne, Lu Jin, Bethany A. Kurz, David J. Miller, Carol B. Grabanski, James A. Sorensen, Lawrence J. Pekot, Nicholas W. Bosshart, Steven A. Smith, Matthew E. Burton-Kelly, Loreal V. Heebink, Charles D. Gorecki, Edward N. Steadman, John A. Harju
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Unconventional Resources Conference, February 15–16, 2017
Paper Number: SPE-185081-MS
... temperature and pressure of 5000 psi and 230°F (34.5 MPa, 110°C), and the recovered crude oil hydrocarbons were collected periodically and analyzed to determine the rates and efficiencies of oil recovery. For the 26 Middle Bakken and Three Forks rocks, hydrocarbon recovery upon CO 2 exposure averaged 86...
Proceedings Papers
Fracture Network Characterization by Analyzing Flowback Salts: Scale-Up of Experimental Data
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Unconventional Resources Conference, February 15–16, 2017
Paper Number: SPE-185078-MS
... value at reservoir temperature is approximately 10 6 m 2 for both target wells. These results are in agreement with RTA calculation of A Frac values for both target wells (≈ 10 6 m 2 ). Our estimated values of A Frac are also in agreement with the field data of water recovery. The well...
Proceedings Papers
Coupling of Wellbore and Surface Facilities Models with Reservoir Simulation to Optimize Recovery of Liquids from Shale Reservoirs
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Unconventional Resources Conference, February 15–16, 2017
Paper Number: SPE-185079-MS
... Abstract The objective of this paper is to couple wellbore and surface production facilities models with reservoir simulation for a shale reservoir that contains dry gas, condensate and oil in separate containers. The goal of this integration is to improve liquid recoveries by dry gas injection...
Proceedings Papers
Fracturing Fluid Distribution in Shale Gas Reservoirs Due to Fracture Closure, Proppant Distribution and Gravity Segregation
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Unconventional Resources Conference, February 15–16, 2017
Paper Number: SPE-185043-MS
... Abstract Many stimulated shale gas wells experience surprisingly low fracturing fluid recoveries. Fracture closure, gravity segregation, fracture tortuosity, proppant distribution, and shut-in (soaking) time have been widely postulated to be the contributing factors. This study examines...
Proceedings Papers
Building Calibrated Hydraulic Fracture Models from Low Quality Micro-Seismic Data and Utilizing it for Optimization: Montney Example
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Unconventional Resources Conference, February 15–16, 2017
Paper Number: SPE-185046-MS
... the number of clusters per stage and proppant mass per stage improves well production and recovery. However, the question is are these improvements short time gains, and what is the balance between well productivity and economics? Thirdly, in this study, we propose using measureable and known metrics...
Proceedings Papers
A Modeling Study of EOR Potential for CO 2 Huff-n-Puff in Tight Oil Reservoirs - Example from the Bakken Formation
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Unconventional Resources Conference, February 15–16, 2017
Paper Number: SPE-185026-MS
... Abstract The most commonly used technology for development of unconventional liquid-rich and light oil reservoirs is horizontal wells combined with large multi-stage hydraulic fracture treatments. However, even with these technological advancements, primary recovery factors are generally less...
Proceedings Papers
The Effect of Kerogen-Hydrocarbons Interaction on the PVT Properties in Liquid Rich Shale Plays
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE/CSUR Unconventional Resources Conference, October 20–22, 2015
Paper Number: SPE-175905-MS
... the rest is retained within the kerogen matrix. In liquid rich shale plays, the hydrocarbons retained within the kerogen plays a key role in estimated ultimate recovery (EUR). However, the vapor-liquid equilibrium between oil and gas in shales is affected by the presence of kerogen. The conventional...
Proceedings Papers
Draw-Down Management Leads to Better Productivity in Reservoirs with Pressure-Dependent Permeability - or Does It?
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE/CSUR Unconventional Resources Conference, October 20–22, 2015
Paper Number: SPE-175938-MS
... Abstract In certain production scenarios of multi-fractured unconventional wells, it appears that there exists the unexpected possibility that increasing the well's flowing pressure (decreasing the drawdown) can result in improved productivity and in larger Estimated Ultimate Recovery (EUR...
Proceedings Papers
Enhance Hydraulic Fractured Coalbed Methane Recovery by Thermal Stimulation
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE/CSUR Unconventional Resources Conference, October 20–22, 2015
Paper Number: SPE-175927-MS
... be found as an adsorbed phase inside the coal matrix, so how much adsorbed gas can be released at an economical rate will determine the ultimate gas recovery. The Langmuir isotherm has been widely used in industry to describe the pressure dependence of adsorbed gas. However, temperature dependent...
Proceedings Papers
Improving Hydrocarbon Recovery of Horizontal Shale Wells Through Refracturing
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE/CSUR Unconventional Resources Conference, October 20–22, 2015
Paper Number: SPE-175920-MS
.... Furthermore, during the development phase, the depletion from parent wells leads to asymmetric hydraulic fracture growth on closely spaced infill wells. Parent wells may also be negatively impacted due to hydraulic fracture interference from new completions. These factors have led to poor hydrocarbon recovery...
Proceedings Papers
Tight Cardium Multi-Stage Fractured Horizontal Oil Well Performance Study Focusing on the Effectiveness of Various Fracture Fluid Systems
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE/CSUR Unconventional Resources Conference – Canada, September 30–October 2, 2014
Paper Number: SPE-171583-MS
..., and has proven successful at predicting long-term well performance and recoveries. Wells were chosen for comparison that were in the same geological and pressure regions, had a minimum of 2 years of production information, and were stimulated with various fracture fluid systems. In one of the analyzed...
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