... isolation. In the event of steam breakthrough, swellable packers can be deployed to isolate the affected zone(s). This intervention technique will assist in efficient continued production, elimination of sand production and steam breakthrough. The technique of steam injection has been improving over...

..., fibers are now used reliably up to 480 °F in Aera Energy's California field. Case lis an installation on tubing in rod pump wells has been useful in detecting early steam breakthrough and is expected to reduce the need for temperature observation (TO) wells in the future. Case 2 is a permanent...

... of carbon, 13 C, while water-derived CO 2 is enriched in 13 C. Results of isotope analyses of CO 2 from the Cymric field steamflood show that CO 2 in good flood response wells is primarily derived from oil and CO 2 in steam breakthrough wells is mainly water/mineral derived. These results suggest...

... below fracture pressure; distributing the steam into reservoir layers in proportion to their h S o ; maintaining these rates until steam breakthrough occurs in multiple wells in a pattern; then performing injector wellwork to shift steam out of the breakthrough layers while continuing initial rates...

... ABSTRACT The Water-Altemating-Steam-Process (WASP) has been utilized on Section 13D, West Coalinga Field since 1988. Originally implemented to control premature, high-temperature steam breakthrough, the process has improved sales oil recovery in both breakthrough and non-breakthrough patterns...

... Abstract Early steam breakthrough, often observed in practice, is usually attributed to steam override. In the paper we address the question whether viscous fingering and/or channelling have an additional effect on the time of steam breakthrough. We have developed a pseudo 3-D mathematical...

... saturation steam breakthrough saturation steam-assisted gravity drainage steam drive pilot enhanced recovery spe 29621 heating injector thermal method interpretation hydraulic fracturing injectivity sagd fracture INTRODUCTION In 1986, steam injection began in Section 29 of South...

...) ease with controlling steam breakthrough in individual sands, and (5) low cost access to bypassed oil. There also are disadvantages: (1) limited injection rates and limited downhole survey or remedial work, (2) increased wellbore heat losses, and (3) increased potential for thermal stress- related...

... ABSTRACT A novel means of mitigating steam channeling and premature steam breakthrough in steamdrives has been successfully applied in the West Coalinga Field, California. A unique polymer gel system, organically crosslinked in-situ, has shown the ability to divert steam from pre-existing steam...

... ABSTRACT A comprehensive, three-dimensional, numerical model study was conducted to optimize steamflood performance of dipping, heavy-oil reservoirs. Results show that a reduction in steam (heat) injection rate after steam breakthrough is much superior to the constant rate injection. A linear...

... include oil production from vertical wells in a five-spot pattern and horizontal wells in a trench pattern. moderate oil modify vise enhanced recovery simulator viscosity curve water viscosity upstream oil & gas viscous oil viscosity injection steam breakthrough steam-assisted gravity...

... of barrels of oil. The study documented here was undertaken to better determine the potential of this project. upstream oil & gas saturation steamflood continuous reservoir reservoir characterization permeability society of petroleum engineers steam breakthrough facies steam-assisted...

.... The recovery mechanisms and the sensitivity of the process to various parameters are also discussed in this paper. society of petroleum engineers sagd tar sand steam breakthrough thermal method pipe complex reservoir production well configuration oil sand enhanced recovery bitumen steam...

... & gas tank production well injection well tar sand enhanced recovery sagd oil saturation permeability steam breakthrough deposit INTRODUCTION The tar sand resource in the United States contains an estimated 24 to 36 billion barrels (3.8 to 5.7 km 3 ) of bitumen (oil) in deposits...