The algorithm for determining the pulling force while dragging a pipeline

Abstract

This article describes the process of dragging a pipeline through a channel. In the simulation of this process, the interactions between the pipeline, the drill rod, the soil and the bentonite mud are taken into account. Dragging of the pipeline through the well is hampered by frictional forces of the pipeline and the drill rod against the soil, as well as the drag force of the pipeline when it moves in the drilling fluid. In the construction of a mathematical model, the influence of these forces is taken into account. To determine the frictional forces, the pipeline and the drill rod were considered as a flexible non-stretch filament. An algorithm for determining the tractive effort is created and implemented. A separate stage of the work is devoted to the accounting of ballasting of the pipeline.

Improving the methodology for calculating the thrust force during underwater crossing by directional drilling method

“…In order to increase the accuracy of calculating the design value of the dragging force, the dependence of the total dragging force on the properties of the drilling mud should also be taken into account 33 . For this purpose, the drag forces were calculated according to the proposed method with different parameters of the density and dynamic shear stress of the flushing drilling mud.…”