By deploying sonic drilling for soil structure fracturing in the presence of consolidated/ unconsolidated formations, this technique greatly reduces friction on drillstring and bit by using energetic resonance, a bit-bouncing high-frequency axial vibration. While resonance must be avoided, to our knowledge, is only application area where necessary break up rocks. The problem that machine’s tool...

Article presents results of study on possibility of increasing the efficiency of drilling directional straight sections of wells using screw downhole motors (SDM) with a combined method of drilling with rotation of drilling string (DS). Goal is to ensure steady-state operation of SDM with simultaneous rotation of DS by reducing the amplitude of oscillations with adjusting the parameters of dril...

In the process of oil drilling, it is often required to improve drilling efficiency and be able analyze faults in process, so great significance study parameter acquisition system drill bit working process[1]. Aiming at this situation, paper designs a device for downhole data acquisition, vibration detection, temperature detection rotational speed deep well bits. paper, an overall scheme design...

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Both economical and ecological factors might encourage conventional machines to continue in service by healing tool vibration problems. Higher productivity in automated manufacturing system brought to the attention the importance of machine tool error elimination. Various factors might affect the machining process (Merritt, 1965), some of them are non-measurable, and others might change in real...

vibration generated by vehicles during road transport has an important effect on the agricultural products damage process, particularly vegetable and fruit. modulus of elasticity is one of the most important mechanical properties of fruits and its variation can be described as one of the damage criteria during transportation. this research was conducted to evaluate the effects of vibration para...

Abstract This work investigates the drilling performance by reaming while (RWD) using a dual-body bit and compared it with conventional standard bit. The consisted of 2.45-in. pilot located at short distance ahead 2.47 × 3.97-in. reamer. Conducting series experiments simulation rig full monitoring sensors, we further studied as function between is greatly important parameter affecting mud diffu...