Wind Turbine Electrical Energy Supply System for Oil Well Heating

Abstract

In this article, the authors reviewed a new technology to prevent the formation of asphalt-resin-paraffin deposits by the thermal method of electrothermal impact on the oil wellbore shaft using a wind-electric installation as an autonomous power source. The advantage of this thermal stimulation technique lies in its continuous nature, which will allow keeping the clear opening of the tubing constant. The scheme of the autonomous system for down-hole electric heating of oil is presented. A tubular or induction heater can serve as an electric heating element placed in the well. The heating element of the system can be used in the wells exploited by freeflow, gas lift and mechanized methods, while its installation does not require an overhaul. The paraffin oil saturation temperature and temperature distribution over the depth of the well were defined. The amount of heat, which must be transferred to the oil mixture in the tubing in order to ensure effective operation of the well, taking into account the dynamic state of the system, is calculated. The optimal depth of the heating element's location in the well and its power was determined. The calculation of the required power for wind-electric installation to maintain the set temperature in the wellbore was performed. Having conducted the studies, it was revealed that in order to prevent the asphalt-resin-paraffin deposits formation on the tubing walls of oil wells, it is expedient to use the in-line heater, which maintains the average steady-state temperature along the wellbore and at the wellhead above the initial crystallization point of the asphaltresin-paraffin deposits. The application of the developed electrothermal system is relevant in the conditions of formation of asphalt-resin-paraffin deposits in the wellbore shaft at the fields, which do not have a connection to the centralized power grid.

Experimental Determination of Parameters of Nonlinear Electrical Load

“…On the one hand, the implementation of this kind of electrical equipment leads to an increase in energy efficiency [6,7] and the automation of technological processes. On the other hand, in the absence of additional compensation measures, it negatively affects the operation of other electrical receivers, circuit protection devices and communication devices, and can lead to downtime and losses in production, as well as to difficulties in determining power consumption [8]. There are known cases of stoppages in technological lines at food industry enterprises resulting from exceeding the voltage distortion levels due to outside, nonlinear consumers being connected to the point of common coupling [9].…”

Powering Multiple Gas Condensate Wells in Russia’s Arctic: Power Supply Systems Based on Renewable Energy Sources

“…The role and prospects for the use of renewable energy sources in Russia's Arctic have been discussed in a number of articles by Russian researchers [10]. They have considered the issues of integrating renewable energy systems in the Arctic climate [11], improving energy efficiency and the reliability of energy supply to remote oil and gas facilities in Russia [12][13][14], improving energy quality in off-grid systems [15], the management and economics of stand-alone power systems based on renewable energy sources [16], the development of the renewable energy sector and wind energy policies [17][18][19], methods for mitigating risks in managing the development of a local power industry [20], and prospects for binary-cycle power plants [21].…”

Research of the inhibitory capacity of the polymer salt drilling fluids based on xanthan gum

“…When drilling in rotational mode in the bore of the continuously circulating stream of liquid, which was previously considered only as a means for removal of destructed products (sludge). Currently, it is perceived as one of the main factors ensuring the efficiency of the whole drilling process [1][2][3][4][5][6][7][8][9][10][11][12][13].…”