This paper presents a new methodology to predict the wear for three-cone bits under varying operating conditions. In this approach, six variables (weight on bit, rotary speed, pump rate, formation hardness, bit type, and torque) were studied over a range of values. A simulator was used to generate drlling data to eliminate arrors coherent to field measurements. The data generated was used to es...

Good flow and pressure control is essential for successful Underbalanced Drilling (UBD) operations. This work evaluates the use of Model Predictive Control (MPC) for integrated control of well conditions and the topside separation system during UBD. The downhole well pressure, separator liquid levels, and the separator pressure are controlled by manipulation of the rig pump, the choke, and the ...

The features of the use pneumatic systems in drilling equipment for oil and gas production are considered. To improve reliability, it is proposed to introduce a test procedure main element system - compressor. An automated testing compressors has been developed, which implements all program modes allows you determine degree compressor performance

Sub-Surface Drilling is the process of making boreholes into the Earth, which can reach depths of many kilometers. One of the major purposes of such boreholes is the exploration of oil or gas bearing formations with the goal to recover the content of such reservoirs. Problems in drilling operations pose serious risks for the crew and the environment and can cause significant financial losses. C...

Often there is no well drilling without problems. The solution lies in managing and evaluating these problems developing strategies to manage scale them. Non-productive time (NPT) one of the main causes delayed operations. Many events or possibilities can lead a halt operations marginal decrease advancement drilling, this called (NPT). Reducing NPT has an important impact on total expenditure, ...

Abstract The horizontal shaft of rotary table is an important rotating part drilling rig. vibration caused by the mass imbalance will seriously affect normal operation rig and lead to faults. Therefore, taking rotor system as research object, unbalanced characteristics are extracted improved all-phase fast Fourier transform method. Through cross-correlation signal, data discrete signal weighted...