... that operating strategy can be altered to improve SAGD performance but it is not clear how well configuration can be changed to improve recovery, energy intensity, thermal efficiency, water use, and flue gas emissions. This paper examines the impact of position and geometry of steam injectors on the performance...

... changes since 1984, ultimate oil recovery seems to have significantly increased. It must be pointed out that these changes in cumulative oil produced are also partly contributed by infill injectors and producers, and also by selective shutting of some injectors and producers. 2 3 Medicine River Jurassic...

... to formulate an answer to the above questions it is crucial to understand individual producer-injector connections. The methodology explored in this paper uses empirical statistical analysis as well as common waterflood surveillance techniques and analytical methods to develop a mental model of fluid flow...

.... Sometimes even if there is no shut-in, the production well also becomes cold after it is converted from circulation to Full SAGD. This paper classifies the SAGD operation modes into three categories, including Full SAGD, Semi-SAGD, and Partial SAGD. In Partial SAGD, the injector return is shut-in while...

... squeeze treatment producer voordouw artificial intelligence conversion characteristic university injector upstream oil & gas reservoir simulation nitrate partition coefficient reaction waterflooding experiment toluene variation history souring injection concentration...

... of vertical and horizontal injectors-producers, and found that the maximum recovery was obtained from the horizontal well pair [2]. Chung and Butler s [3] experimental observations showed that the rate of bitumen recovery is higher when the steam is injected near the top of net pay, i.e. through vertical...

... of new injectors and conditions for safe surfactant-polymer injection. Introduction Modeling fracture growth is the main goal of fracturing modeling. The growth of fractures in layered reservoirs has been mainly attributed to the minimum in-situ stress contrast; while the Young s modulus contrast has...

... pilot test reservoir surveillance steam-assisted gravity drainage upstream oil & gas horizontal producer enhanced recovery indication sagd operation temperature profile vertical injector orientation drilling operation reservoir temperature production control thermal method...

.... Publication rights are reserved. This is a pre-print and subject to correction. Abstract With the advent of horizontal wells a distinct change is tacitly taking place in our approach to the improved recovery of heavy oil: from displacing mobilized oil in a flood pattern from injector to producers over long...

... breakthrough time dispersion coefficient relative permeability curve producer wormhole permeability vertical location injector scenario water saturation pressure drop saturation enhanced recovery upstream oil & gas flow in porous media wormholed well wormhole length...

... Abstract Pressure drop along the horizontal wells and between the injector and producer could have a significant impact on SAGD process performance. However, this issue is poorly understood due to difficulties in simulating pressure drop. This paper presents the results of a numerical study...

... recovery optimization problem co 2 injector optimize reservoir performance PAPER 2008-127 Optimization of Displacement Efficiency in a CO2 Flooding Reservoir Under Uncertainty S. CHEN, H. LI, D. YANG Petroleum Technology Research Centre (PTRC), University of Regina This paper is accepted...

... waterflooding directional drilling hot water chamber enhanced recovery sagd cumulative gas production thermal method injector multiple injector methane hydrate layer upstream oil & gas numerical model physical model hot water injection production system drilling operation gas...

... horizontal pressure drop steam chamber drilling operation base model pressure drop reservoir kpa cross section chamber development wellbore injector upstream oil & gas 1 PAPER 2007-157 SAGD With a Longer Wellbore R. PARAPPILLY*, L. ZHAO Petro-Canada *Currently at University of British...

... Abstract Both theoretical knowledge and field use of ‘Classic 1 ’ SAGD' have greatly expanded over the last 15 years. During that period only a few modifications of ‘Classic’ SAGD have been proposed. The most successful was use of vertical injectors at Sceptre (now CNRL) North Tangleflags...

...-Canada employs at MacKay River. Various flow rates were tested for the two completions to see how the steam injection rate affected the steam to toe time. Next the circulation pressure along with the injector/producer pressure gradient was investigated. Various pressure gradients were applied between...

... of the SAP process, bitumen recovery progresses from the bottom to the top of the reservoir, and employs injector and producer wells that are spaced horizontally apart rather than being in the same vertical plane. For large horizontal spacing between the injector and producer in a well pair, rates are low...

... platform that was producing oil at the rate of about 1814 bopd with 70% water cut were taken up for the jobs as a test case. All the producers were sidetracked and converted to horizontal drain holes and suitably placed in better oil saturation area through state-of-art SRDH/MRDH technology. Injectors were...

... set. The differences between waterflooding of heavy oils and their medium oil counterparts were substantial and revealing: In terms of operational parameters, incorporating horizontal and directional wells, both producers and injectors, was significantly important to the success of heavy oil...

... is that it is not suitable for implementation as a single well pair, but requires multiple injectors crossing multiple producers. This limits XSAGD to more laterally continuous sands whereas SAGD can be applied in relatively localized pay sections. A possible advantage that XSAGD offers is that the injection well spacing...