Temperature Field Control of a Metal Oil-well Tubing for Producing of High-Paraffin Oil

Using of the innovative approach for heating isotropic structures is an urgent task. In oilfield practice are widespread thermal methods for controlling of asphalt-resin-paraffin deposits formation because of their reliability and ease of use. The proposed methodology reduces the final cost of development and operation of the field by saving funds on energy resources.The paper presents the mathematical model of high-paraffin oil movement along a tubing string, observes the method of temperature field formation using pulsed sectional heaters. The authors synthesize a temperature field control system, and perform a numerical experiment on a sample of Sobolinoe oil field.At present the proportion of high-paraffin oil which has a high setting point has significantly increased in the balance of hydrocarbon production. In this regard, specialists face with the problem of its production, preparation, transportation and refining, due to a significant increase in viscosity, as well as loss of fluidity at low ambient temperatures. Paraffin deposits in the bottom-hole formation zone and on the surface of oilfield equipment are one of the most serious complications in the operation of wells and pipeline transport. Paraffin deposits reduce filtration characteristics of the reservoir, clog pores, reduce the useful cross section of tubing and, as a result, significantly complicate production and transportation of oil, increase energy consumption during the mechanized production method, and lead to increased equipment deterioration.One of the solutions to problems mentioned above is the use of additional heating devices during production and transportation. Also solutions require predictive data on behavior of mixtures in the process of their pumping and processing, as well as the development of a set of measures that allow transportation, processing and storage of raw materials in the specific climatic conditions that arise, are also required.