Strategies of SAGD Start-Up by Downhole Electrical Heating

Evaluation of Steam Circulation Strategies for SAGD Start-Up

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 uniformity of reservoir heating, occurrence of steam breakthrough and time required to establish communication betwe...

Tokamak start-up with electron-cyclotron heating

Experiments are described in which the start-up voltage in a tokamak is reduced by about a factor of two by the use of a modest amount of electron cyclotron resonance heating power for pre-ionization. The solution of the zero-dimensional start-up equations indicates that the effect is due to the high initial density which increases the rate at which the conductivity increases in the neutral-dom...

Start - up entry strategies : Employer vs .

Casual observation points to a broad variety of internal organizations of newborn ...rms. For instance, many start-up ...rms are owned and managed by their founders who are simultaneously the employees. These belong to the category of so-called Nonemployer ...rms, according to US Bureau of Census nomenclature. The internal organization of a start-up Nonemployer, belonging to the subcategory of ...

Study of Plasma Start-up Initiated by Second Harmonic Electron Cyclotron Resonance Heating on WEGA Experiment

Although both 1 harmonic ordinary mode (O1) and 2 harmonic extra-ordinary mode (X2) have been successfully used to initiate pre-ionization and breakdown in many devices, a complete theoretical model is still missing to explain the success of this method. Moreover, some experimental observations are not completely understood, such as what occurs during the delay time between the turn-on of ECRH ...

Founder’s Human Capital, Entry Strategies and Start-Up Size