... EOR techniques have been utilized in the past to exploit such huge resources. These EOR techniques include thermal and non-thermal methods. Thermal methods include Steam Assisted Gravity Drainage (SAGD), Cyclic Steam Stimulation (CSS), steam injection, In Situ Combustion (ISC), and their variants. Non...

... Township 95 Range 25 West of the Third Meridian. The main in situ recovery processes reviewed in this paper are Cyclic Steam Stimulation (CSS) and Steam Assisted Gravity Drainage (SAGD). Other in situ recovery processes discussed herein are solvent injection, electro-thermal stimulation (electric current...

... Abstract With SAGD operations, it is often inevitable to have shut-in time and turnaround periods because of facility, operation, and supply issues. During these shut-in periods, the gravity drainage of cooling bitumen and steam condensate continuously raises the liquid level over...

... Abstract In Oil industry, the production of extra-heavy oil or bitumen using the steam-assisted gravity-drainage (SAGD) method needs the generation and injection of huge amount of steam into the reservoir. A similar amount of hot water is produced together with the oil. Considering...

... to 1,000,000+ cP at original reservoir conditions. Current commercial thermal recovery processes used are Steam-Assisted Gravity Drainage (SAGD) and Cyclic Steam Stimulation (CSS). These methods are both energy intensive, emit significant amounts of carbon dioxide to atmosphere, and use large volumes of water...

... Abstract The impact of steam quality, circulation rate and pressure difference between the well pair during SAGD initialization using steam circulation was explored through the use of numerical simulations employing a discretized wellbore model. These operating parameters appear to affect...

.... Three pairs of SAGD operation began in April of 1997 after three months of circulation. Many interesting characteristics were identified in the injection and production history. During the first year of operation, pressure and oil production rates decreased when steam injection rates were reduced. After...

... lto reaction sagd injection displacement enhanced recovery water zone operation thickness upstream oil & gas combustion steam-assisted gravity drainage oil zone oil reservoir ignition producer isc front bottom water reservoir oxygen utilization PAPER 2009-150 In-Situ...

.... Energy saving and higher pump efficiency. international petroleum conference steam injection sagd optical fiber thermal method symposium artificial lift system injection temperature distribution steam-assisted gravity drainage beam pump oklahoma city heavy oil initial period...

... Abstract Steam Assisted Gravity Drainage (SAGD) process is a steam drive technique which is predominantly used for Alberta's unconventional reservoirs. Butler was the first researcher who proposed this technique and developed a theory to predict SAGD's performance and production. Although his...

... sands. Bitumen is defined as oil that is less than 10 API and will not flow to a well in its naturally occurring state. Steam assisted gravity drainage (SAGD) is a promising in-situ thermal recovery method, having the advantages of lower energy requirements and higher recovery factors over other steam...

... Abstract Steam Assisted Gravity Drainage (SAGD) is a commercially successful recovery process to produce heavy oils and bitumen. The method ensures both a stable displacement front of steam and economical rates by using gravity as the driving force with a pair of horizontal wells for injection...

... Abstract Non-condensable gases (CH 4 , CO 2 , and H 2 S) are present and play an important role in the thermal efficiency of SAGD. However, the role of these gases is not well understood and it is regarded by some people as beneficial, yet detrimental by others. The characterization of the gas...

... in flow simulation. The ranking methodology is customized for a gravity drainage process where the well locations are specified. Although this ranking procedure is not general for a variety of recovery processes, it is particularly suited to steamassisted gravity drainage (SAGD) production. The ranking...

... the viscosity, heat transfer and mass transfer. This external agent can be air, steam or solvent as in case of in-situ combustion, steam flooding/Cyclic Steam Stimulation (CSS)/SAGD and the Vapex process respectively. solvent concentration steam-assisted gravity drainage oil sand injection case...

... balance constraint does not appear to be adequately represented in many laboratory experiments and in many reservoir simulations. Ignorance of this constraint may help to explain the lack of commercial progress beyond the original SAGD concept, even though SAGD is now 40 years old. To mitigate...

... Abstract This paper describes the application of a genetic algorithm to the development of a solvent-additive SAGD process. A review of related field projects and key simulation studies is provided, together with a discussion of the pros and cons of potential alkane solvents. Economics...

... Abstract Heavy oil and bitumen are expected to become increasingly important sources of fuel in the coming decades. SAGD is a commercially viable and widely used recovery technique for heavy oil and bitumen. However, it remains an expensive technique and requires large energy input in the form...

... drainage (SAGD) process, none of the early recovery technologies tested were proven to be economic. As the "gravity" drainage process has been proven successful in commercial development of the McMurray Formation oil sands since mid to late 1990s, the recovery potential for the Grosmont Formation should...

... gas drive are the two most important recovery mechanisms. The CSS process has limited application in reservoirs with thick bottom water or in reservoirs with fine grain sands. The Steam Assisted Gravity Drainage (SAGD) process has been field tested and commercially expanded in the Lower Grand Rapids...