...% (25% of the primary) oil can be recovered, this means an additional 1 to 1.5 billion bbls of oil production which can sustain the oil industry for many years in this area providing jobs and contributing significantly to government royalties. A critical literature review of Cyclic Solvent Injection...

... hydrocarbon solvent injection. Three types of solvent (nC5, nC7, and nC12) were used for solvent injection for extra-heavy oil recovery (30,000 cp at 22 °C). A uniquely designed heterogeneous-fractured micromodel imitating the fractured carbonate reservoirs was used for pore scale observation. A high-quality...

.... rotation with friction of polar molecules in the EM field. The intrinsic advantages of the RF-heating (RFH) based technology, which in particular avoids the problems associated to water supply and water treatment, can be strengthened by solvent injection. After certain period of preheating this may lead...

... Abstract Electromagnetic (EM) heating holds a large potential in heavy oil recovery since it can reduce carbon emission and avoid excessive water usage, and is applicable for water hostile reservoirs such as shale oil reservoirs. Combining solvent injection and EM heating might further reduce...

... Abstract In a cyclic solvent injection (CSI) process, a solvent gas is cyclically injected, soaked, and released to produce heavy oil. Through this process the operating pressure is decreased and increased cyclically. This causes a dynamically changing pressure gradient across the solvent–oil...

... from a production well. This permits a prediction of wormhole growth in each layer of the simulation grid. The CHOPS history matches resulted in post-CHOPS conditions that were the starting point for solvent injection simulations. These included: ○ Reservoir properties such as porosity...

... has gained interest in conventional heavy oil recovery in recent times. However, the oil recovery process by foam, especially PEF, in conjunction with solvent injection is less understood in fracture heavy oil carbonate reservoirs. The challenge is to understand how the combination of surfactant, gas...

... is not efficient and can take 150 to 180 days to achieve. In order to shorten the circulation time and accelerate the ramp-up phase after SAGD conversion, an approach using solvent injection with steam simultaneously to enhance injectivity was successfully designed and implemented. This paper reviews the design...

... for the solvent injection process than that for the steam injection process. Therefore, the capital investment and operating cost will be much lower for a solvent-based heavy oil recovery process than those for a steam-based process. Moreover, when enough solvent is dissolved into the heavy oil, asphaltene...

... as a platform) to design CHOPS operating strategies. The CHOPS simulations determined: (a) wormhole penetration length required to maintain the specified oil rate, (b) when to stop CHOPS and start solvent injection, and (c) the initial conditions (wormhole occupied region, fluid saturations, etc.) for solvent...

... in the primary production and solvent injection simulations. Over the years, solvent injection models have been developed at AITF ( Chang and Ivory, 2011 , 2012 , and 2013 ) and Ivory et al. (2010) which consider many important mechanisms including non-equilibrium solubility, foamy oil, gas expansion, oil...

... Abstract Cyclic solvent injection (CSI) process takes advantage of solution-gas drive and foamy oil flow for the oil production. However, it suffers from the solvent liberation during the production period. This results in an increased viscosity of the oil and its mobility loss. 0How to recover...

... Abstract In situ bitumen recovery directly depends on the reduction of bitumen viscosity. Solvent injection is an alternative to thermal bitumen recovery by steam injection. Injection of solvents containing n-alkanes like butane, propane and naphtha may lead to asphaltene precipitation...

... by the presence of high water saturation zones within the bitumen pay zone ("lean zones"), an adjacent Quaternary-age fresh water-bearing channel, and shallow formation depth. In order to overcome these constraints, an approach using solvent injection in a warm system with enhanced injectivity was successfully...

... Abstract Solvent injection into heavy-oil reservoirs is quite complex on account of the asphaltene destabilization that occurs due to the changes in temperature, pressure, and solvent type dissolved in oil. As a result of this destabilization, the asphaltene precipitates, flocculates...

... reservoir heavy oil reservoir cold heavy oil production recovery graph recovery injection distillate solvent injection solvent phase recovery technology Oil Recovery Introduction Lloydminster area that straddles Alberta and Saskatchewan border contains vast amounts of heavy oil deposits...

... darcy and ~33%, respectively) that was oriented vertically to provide model dimensions of 2.5 m thick by 0.2 m wide by 0.5 m long. The 0.5-m-long horizontal top injection and bottom production wells were separated laterally across the width and vertically across the thickness. Prior to solvent injection...

... Abstract Solvent-based in-situ enhance oil recovery (EOR) techniques are extensively studied to improve oil recovery factors (RFs) for heavy oil reservoirs. Continuous injection, such as vapour extraction (VAPEX), and cyclic injection, such as cyclic solvent injection (CSI) are two main...

... & Simulation oil sand Upstream Oil & Gas SAGD sa-sagd pilot enhanced recovery complex reservoir injector bitumen steam-assisted gravity drainage physical model producer wellpair solvent-assisted sagd pilot steam chamber solvent injection operation ExxonMobil temperature profile Cold Lake...

... solvent injection History Match well pair experiment well pair 2 enhanced recovery SAGD Research Program physical model laboratory production rate total hydrocarbon production rate solvent switch Introduction ExxonMobil and Imperial Oil Resources (IOR) are actively researching...