Steamflood as one of thermal EOR method is effective to reduce the amount oil left in reservoir by mechanisms such reducing viscosity oil, evaporation, and displacement steam. In this method, fluid injected continuously into some injection wells displace obtain production from other wells. However, there are problems with steamflood process that still not optimally solved. There an early channe...

In this Special Issue, all aspects of fluid flow and heat transfer in geothermal applications, including the ground exchanger, conduction, convection porous media, are considered. The emphasis here is on mathematical computational conventional unconventional reservoirs, engineering, drilling enhanced oil recovery (hydraulic fracturing, steam-assisted gravity drainage (SAGD), CO2 injection, etc....

*Corresponding author: Carlos Jimenez-Junca, e-mail: [email protected] , tel: 5 +57 320 845 45 27, Fax: +571 861 55 55 6 Faculty of Engineering, Universidad de la Sabana, Campus Puente el Común, Km.7 7 Autopista Norte de Bogotá, Chía 25001, Colombia 8 Nestlé R&D Marysville, 809 Collins Ave, Marysville, OH 43040, USA 9 Nestlé PTC Orbe, Rte de Chavornay 3, Orbe, CH-1350, Switzerland 10 De...

To dispose of large volumes of oilfield-produced water, an environmentally friendly method that reuses advanced-softened, silica-rich, oilfield-produced water (ASOW) as feedwater was implemented via a 10-month pilot-scale test in oilfield. However, salt deposition detrimental to the efficiency and security of steam injection system was generated in superheated steam pipeline. To evaluate the me...

A thorough understanding of the effects of lean zones and the improvement of steam-assisted gravity drainage (SAGD) operations with such heterogeneities is critically important for reducing the disadvantages of lean zones. The numerical model shows: (1) SAGD is most influenced by the single-layer lean zone with the above-injector (AI) location; with the decrease of interval distance and increas...

The recently concluded OECD SETH project included experiments on basic flows and gas transport and mixing driven by jets and plumes in the multi-compartment geometry (two large, connected vessels) of the PANDA facility, which have been simulated with the advanced containment code GOTHIC. The two experiments considered here featured injection of saturated steam in one vessel and venting from the...

Modern portable gravimeters can routinely achieve a 5 ugal uncertainty with careful measurement procedures involving multiple station occupations in the same day, and stacking of readings over at least 15 minutes during each occupation. Although further improvements in gravimeter accuracy are feasible, other practical factors relating to repeat surveys of geothermal fields make such improvement...

Exposure of cellulosic biomass to temperatures of about 120-210 degrees C can remove most of the hemicellulose and produce cellulose-rich solids from which high glucose yields are possible with cellulase enzymes. Furthermore, the use of dilute sulfuric acid in this pretreatment operation can increase recovery of hemicellulose sugars substantially to about 85-95% of the maximum possible versus o...

This Steam System Survey Guide provides technical information for steam system operational personnel and plant energy managers on some of the major opportunities available to improve the energy efficiency and productivity of industrial steam systems. The guide covers five main areas of investigation: (1) profiling a steam system, (2) identifying steam properties for the steam system, (3) improv...

1. Steam Generation 1.1. General Characteristics 1.2. Circulation in Boiling Water Reactors 1.3. Steam Generation in CANDU Reactors 1.4. Steam Generators 1.5. Steam Generator for PWR and CANDU Systems 1.6. Heat Transfer 2. Steam Generator Operation 2.1. Swelling and Shrinking 2.1.1. Steady State Swelling and Shrinking 2.1.2. Transient Swelling and Shrinking 2.2. Level Control 2.3. Carryover 2.4...