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Showing 1 to 9 of 9 for “"Cyclic Solvent Injection"”.
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Experimental Study of Heavy Oil Recovery Mechanisms during Cyclic Solvent Injection Processes
In recent years, the Cyclic Solvent Injection (CSI) process has shown to be a promising method for enhanced heavy oil recovery in Canada. CSI laboratory studies work for only 2 to 3 cycles due to low incremental oil in subsequent cycles whereas field pilots continue for years over multiple cycles …
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Characterization of Gas-Oil Flow in Cyclic Solvent Injection (CSI) for Heavy Oil Recovery
Cyclic Solvent Injection (CSI) has emerged as an effective post-CHOPS recovery method. It has shown a great potential with the aid of the solvent injection under the huff-n-puff operation. The use of solvent that maintains a strong nature of gas results in the solvent chamber which under the …
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Microfluidic investigation of cyclic solvent injection: from reservoir-on-the-chip to large scale
Cyclic Solvent Injection (CSI) is an effective Enhanced Oil Recovery (EOR) technique with several economic and environmental benefits. Understanding the key mechanisms and developing reliable scaling criteria are required to successfully implement CSI commercially. In this study, CSI was assessed …
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A Novel Automatic History Matching Method and Upscaling Study of Cyclic Solvent Injection Process for Post-Chops Heavy Oil Reservoirs
Cyclic solvent injection (CSI) is one of the most promising processes for a post-CHOPS reservoir. This paper summarizes experimental results of nine CSI tests with three physical models with different scales. A typical western Canadian heavy oil sample with a viscosity of 4,830 cp at the reservoir …
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Experimental and mathematical modeling of foamy-oil evolution and flow in the primary production and CO₂-based cyclic solvent injection
… studies were conducted to differentiate solvent exsolution (i.e., the solution gas becomes the dispersed gas) and liberation (i.e., the dispersed gas becomes the free gas) processes from the heavy oil-CO2/CH4/C3H8 system in bulk fluids and porous media. Experimentally, two series of …
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Enhanced Cyclic Solvent Process (ECSP) for Thin Heavy Oil Reservoirs
… due to lack of efficient gravity drainage. Cyclic solvent process (CSP) has been proposed to improve the production rate of solvent processes. A major problem of CSP is that during production, the reservoir pressure has to be greatly reduced in order for the solvent gas drive to occur during …
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Experimental Study on Improving the Waterflooding Potential in Different Heavy Oil-Solvent Systems
… related to the pressure change, such as the injection rate, the start time of waterflooding, the voidage replacement ratio (VRR) control, etc., have been studied to take full advantage of the nature energies in heavy oil waterflooding processes. However, few researchers have directly studied …
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An Improved Vapour Solvent Injection Technique for Enhanced Heavy Oil Recovery
… recovery techniques, such as steam flooding, cyclic steam stimulation (CSS), and steam-assisted gravity drainage (SAGD), are effective and have been widely applied in the field to reduce heavy oil viscosity. However, thermal-based methods are costly and uneconomic, particularly for reservoirs …
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Experimental Study on Foamy Oil Flow by Using Different heavy Oil-Solvent Systems
… heavy oil reservoirs with different hydrocarbon solvent gases (methane, propane, and mixture) under different constant pressure depletion rates, so as to guide a better cold heavy oil production. In this study, pressure depletion tests on foamy oil flow were conducted in two kinds of apparatus, …