Methods and Means of Cleaning Main Gas and Oil Pipelines

For the first time, the processes that take place during the cleaning of main gas and oil pipelines with cleaning devices of dynamic action have been investigated. The influence of a number of technological parameters on the process of cleaning main gas and oil pipelines was analyzed. New parameters that influenced the process of cleaning main gas and oil pipelines are: pressure drop, geometric and mass parameters, rheological properties of hydrocarbons and others. The initial analysis of the construction of main gas and oil pipelines showed the need to intensify the cleaning process. The main source of energy for the operation of cleaning devices is the energy of the flow of the transported liquid. As the main devices that became the subject of research, there were two vibrato and roller action devices. The reciprocating movement of the hammers is the basis of cleaning devices with a vibrating action. The impact forces cause the cleaning device to oscillate, which leads to the intensification of the pipeline cleaning process. A new design of an intra-tubular device with a brush roller drive is proposed, which allows using the energy of the oil flow to create a torque of the brush drive. Based on the equations of mechanics of contact interaction and the theory of movement of wheeled vehicles, the equation of the maximum power of the roller drive of the rotation of the rotor of the cleaning device was established. Analysis of the dependence indicates a sinusoidal dependence of the change in the power of the roller drive of the rotation of the cleaning device rotor on the angle of rotation of the roller and a linear dependence on the slip coefficient and speed. The use of these systems allows you to reduce time and labor costs when cleaning main pipelines due to the multiple action of brushes moving along a helical trajectory. A fundamentally new system of speed stabilization of intra-pipe devices of main gas pipelines is also proposed. The developed stabilization system the speed of intra-pipe diagnostic devices allows to reduce and stabilize the speed of movement, which in turn will make it possible to use the existing methods and means of diagnosing oil pipelines. The operation of the speed stabilization system of the intra-tube device is based on the inertial principle of energy accumulation of the flywheel. Limiting the speed of movement of the device is achieved by the presence of through-throttling holes that allow you to adjust the power of the media flow.