It is necessary to establish effective communication between two horizontal wells during the preheating period of steam-assisted gravity-drainage (SAGD). However, time usually very long, which results in high steam consumption and CO2 emissions. There little research on effects different wellbore fluids period. The heat transfer heating characteristics fluids–water, heat-conduction oil, air–wer...

Recently, in a previous study, we experimentally showed the existence of an optimal injected steam mass flow rate, per unit length, ϕopt, which produces maximal recovery condensate preformed chamber with elliptical cross section horizontal semi-major axis. Mutatis mutandis, this work, present experimental studies chambers: one and other circular. In both cases, also found unique values. These c...

The existence of the bottom oil–water transition zone (BTZ) greatly impairs performance conventional steam-assisted gravity drainage (SAGD) process and its mitigation measures are very limited. In order to accelerate oil production decrease Steam-to-Oil Ratio (SOR), a promising technology involving steam drive (SDGD) by placing dual-horizontal wells with high permeability in BTZ was systematica...

In thermally enhanced recovery processes like cyclic steam stimulation (CSS) or steam assisted gravity drainage (SAGD), continuous steam injection entails changes in pore fluid, pore pressure and temperature in the rock reservoir, that are most often unconsolidated or weakly consolidated sandstones. This in turn increases or decreases the effective stresses and changes the elastic properties of...

Steam assisted gravity drainage is a thermal method for enhanced bitumen recovery. In this method, steam injected to and heavy oil reduce the viscosity make mobile. However, early breakthrough of in some parts well results loss required amount contact with cold bitumen, poor distribution chamber. This limits production increases SAGD operation cost. Autonomous inflow control valve (AICV) able p...