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Keywords: injection
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Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Conference, September 28–October 2, 2020
Paper Number: SPE-199916-MS
..., solvent concentration profile and viscosity. Abstract Dispersion of a solvent into heavy oil and bitumen in porous media has special significance in the context of solvent-based as well as solvent-aided versions of SAGD and CSS recovery processes. While solvent is injected with steam, the mixture...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Conference, September 28–October 2, 2020
Paper Number: SPE-199956-MS
... temperature plus an average temperature of 15°F until the middle of the average gas-column (at 700 ft), set after analyzing results of two fiber optic loggs performed in the field during injection and production cycles. Where P casing is expressed in Psig, P gas column is 0.17 Psig for EOR-1...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Conference, September 28–October 2, 2020
Paper Number: SPE-199958-MS
..., benzene, and xylene as well as paraffinic hydrocarbons such as propane, butane, pentane, hexane, etc. can be dissolved in heavy oil 10 . However, solvent injection is cost sensitive 7 , 11 and requires an optimization by maximizing the solvent retrieval and optimizing the amount injected 7...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Conference, September 28–October 2, 2020
Paper Number: SPE-199924-MS
... Injection Tests (DFITs) provide a critical piece of information on the competency of the top seal for injection projects and are therefore essential for Subsurface Containment Assurance (SCA) and Maximum Operating Pressure (MOP) determination. Results of DFITs provide the best estimate for the minimum...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Conference, September 28–October 2, 2020
Paper Number: SPE-199964-MS
... under waterflood as indicated in Figures 4 and 5 Beliveau (2009). To maximize waterflood oil recovery from a viscous oil reservoir, it is important to inject large volumes of water and to handle large volumes of produced water along with the oil. Normally, 50% or more of the ultimate oil recovery...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Conference, September 28–October 2, 2020
Paper Number: SPE-199949-MS
... Abstract Water-hot gas injection that uses the waste heat from existing thermal operations can be substantially more energy efficient than CSS and SAGD which require steam generation and water treatment. This project investigated the potential of water-hot gas injection to enhance heavy oil...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Conference, September 28–October 2, 2020
Paper Number: SPE-199947-MS
...% (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...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Conference, September 28–October 2, 2020
Paper Number: SPE-199966-MS
... Figure 1 (a) Mechanical stirring method, and (b) steam injection method. Two types of oils were tested, type A oil with a viscosity of about 27,000 cP and type B oil with a viscosity of about 4351 cP. Saturate, Aromatic, Resin and Asphaltene (SARA) analysis for type A and type B oil...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Conference, September 28–October 2, 2020
Paper Number: SPE-199925-MS
... gravity drainage (SAGD) is a commercialized technology for in situ bitumen production from underground oil sand deposits via thermal recovery ( Al-Bahlani 2009 ). In this technology, high pressure/high temperature steam is injected into the reservoir to heat the bitumen, reduce its viscosity...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Conference, September 28–October 2, 2020
Paper Number: SPE-199936-MS
.... , 2014 ) In situ upgrading of heavy oils and bitumen has been the subject of research for several years. The upgrading reactions that could take place when injecting steam in oil sands, at the right conditions, are complex. So are the reactions when injecting normal or enriched air. The novel...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, March 13–14, 2018
Paper Number: SPE-189716-MS
... Rod BOP which allow CSS operation without any intervention. The unified rod BOP reduces the nonproductive time (NPT) and oil deferment during the CSS process. Therefore, no need to change the X-Mass tree as the setup is applicable for injection and production phases. The horizontal well started...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, March 13–14, 2018
Paper Number: SPE-189755-MS
... Abstract Thermal-Solvent Assisted Gravity Drainage processes are heavy oil recovery processes in which the stimulation mechanism for bitumen viscosity reduction is by heating and dilution. The range of the injected solvent concentration with steam may be low such as in Solvent Assisted-SAGD...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, March 13–14, 2018
Paper Number: SPE-189745-MS
..., namely above 90% of post-polymer flooding ROIP. For the 1400 cP case, a salinity gradient method was proven successful to mitigate adsorption. For the 100 cP case, injections at and below the optimal salinity were carried out with good results in both situations. To enable these experimental assays, new...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, March 13–14, 2018
Paper Number: SPE-189741-MS
... Abstract Co-injection of solvent with steam is one of the promising methods to recover bitumen. The major operational cost for these projects is related to steam generation, water treatment and solvent. Propane and butane have shown desirable performance as solvent. In this work, we introduce...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, March 13–14, 2018
Paper Number: SPE-189749-MS
... phase of any follow up process to CHOPS. For example, wormholes could remain as stable high permeability flow channels to deliver injected fluids into a reservoir or they could collapse to improve conformance for fluid injection. This paper presents the results of experiments testing the stability...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, March 13–14, 2018
Paper Number: SPE-189743-MS
... alshachinskoe heavy oilfield injection Tatarstan reservoir Figure 5 Dual wellhead SAGD wells #232 and #233. Figure 6 Dual wellhead SAGD wells #240 and #241. At the preheating phase steam was circulated in both wells to establish the hydrodynamic connectivity between the pair...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, March 13–14, 2018
Paper Number: SPE-189720-MS
... shut-in, and then pressure and temperature dropped accordingly when the wells were shut-in. Temperature and pressure then began to increase slowly when injection and production were resumed after the turnaround. The slow-down in February 2016 showed a more muted response on the temperature and pressure...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, March 13–14, 2018
Paper Number: SPE-189722-MS
.... the study flow rates can be present in oil reservoirs. Secondary flooding tests: For each displacement test, fluids (i.e. water, surfactant, polymer and SP) were pumped in to the cell at low constant flow rates of 0.6 ml/min and/or high constant flow rates of 3ml/min until 4 PV were injected...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, March 13–14, 2018
Paper Number: SPE-189756-MS
... (Senlac 2002, Christina Lake A0101 2004-2005, Christina Lake A0202 2009-2016). Cenovus has planned to implement a SAP in the Narrows Lake development when that project is sanctioned. The general practice for SAP is to co-inject solvent with steam after the SAGD peak rate is reached as steam is most...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, March 13–14, 2018
Paper Number: SPE-189726-MS
... Steam Assisted Gravity Drainage (SAGD) is widely used to recover Athabasca oil sands in western Canada. In-Situ Combustion (ISC) provides an alternative to steam injection with the advantages of low operating cost and high energy efficiency. A hybrid steam and in-situ combustion process has been...

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