Layout for drilling seismic wells by vibration method

More and more common methods are used to reduce the cost of drilling wells and extracting oil and gas. One of these methods is the increase of energy capacity of drilling rigs through the use of dynamic methods of drill bits loading. Various vibro-mechanisms are used as vibration exciters with helpful use of vibration. Vibro-mechanisms by type of drive are divided into mechanical, electromechanical and magnetostrictive. All of them are intended for the excitation of forced oscillations in the elements attached to them that provide the desired technological effect. The authors have carried out the work to solve the problem of studying the transfer of dynamic load on the drill string. In this case the effectiveness of bottomhole vibration is largely determined by layout parameters of the drilling tool. Oscillations of the drill string are described by a wave equation in partial derivatives. With the solution of the problem, conditions for the transfer of bottomhole vibration load are being determined. The solution shows that dynamic bottomhole load can be effectively transferred from the mouth up to 100 m; the frequency may be greater at lower striker weights. (paper)