THE HEATING PENETRATION ANALYSIS DUE TO MICROWAVE INDUCTION ON THERMAL STIMULATION OF HEAVY OIL WELLS

• Main Author: Sasanti Nirmala, Gerry
• Format: Dissertations
• Language: Indonesia
• Subjects: Pertambangan dan operasi berkaitan
• Online Access: https://digilib.itb.ac.id/gdl/view/65468
• Institution: Institut Teknologi Bandung

Electromagnetik heating (EMH), which is generally realized by microwaves induction, can produce heat that stimulate heavy oil well to reduce viscosity and increase the oil recovery. The relations between the electric power, the heat increment and the radius of heat penetration needs to be analyzed deeply related to the effectiveness of microwave heating. Laboratory experiments will be conducted to determine the effectiveness of EMH heat radiation in reservoir properties through observation of viscosity changes of heavy oil and the result of heating radius. This effectiveness will be analyzed based on the temperatur increment to the electricity consumption per volume of sandpack. The experiment will be begin with the design of a chamber in cylindrical shape from iron plates and a glass placed in the middle of it to represent the well and as a container for the magnetron. Sandpack is a mixture of silica sand and heavy oil will be the test sample of this experiment. To find out the relationship between heating distance and temperatur, the thermometer is placed in the experimental container to determine the temperatur changes at four different points, namely 0 cm, 2 cm, 4 cm and 6 cm away from the tip of the well mouth, with a parallel and perpendicular position of the antena to determine the effect of energy distribution. The heating process is carried out to the maximum temperatur that the thermostat of the microwave generator can reach. This research was conducted with the hypothesis that the heating speed and the heating penetration radius in the rock are influenced by the characteristics of the rock and the frequency of the microwave, so to increase the heating radius an appropriate magnetron frequency and a catalyst with high magnetik susceptibility are needed. Novelties in this experiment include the combination of the type of nanopowder and the use of waveguide, the value of the power absorption coefficient, the determination of the minimum power and dissipation power used in heating.