Training-while-drilling approach to inclination prediction in directional drilling utilizing recurrent neural networks

Output-feedback inclination control of directional drilling systems

Directional drilling techniques, based on rotary steerable systems, are used to generate complex curved boreholes. In practice, however, boreholes drilled with such systems often show instability-induced borehole spiraling, which negatively affects the borehole quality and increases drag losses while drilling. As a basis for controller synthesis, we present a directional drilling model in terms...

Horizontal Directional Drilling-Length Detection Technology While Drilling Based on Bi-Electro-Magnetic Sensing

The drilling length is an important parameter in the process of horizontal directional drilling (HDD) exploration and recovery, but there has been a lack of accurate, automatically obtained statistics regarding this parameter. Herein, a technique for real-time HDD length detection and a management system based on the electromagnetic detection method with a microprocessor and two magnetoresistiv...

Drilling Stuck Pipe Prediction in Iranian Oil Fields: An Artificial Neural Network Approach

Thermal Response Test While Drilling

Knowledge of the ground thermal conductivity is of importance when designing borehole heat exchanger (BHE) systems. As thermal conductivity for any specific rock type varies due to its mineral content, porosity, pore fluid and anisotropy, it is preferable determined in-situ. Choudhary (1976) suggested a method for determining the thermal conductivity which analysed the heat transfer during the ...

Anomaly Detection in Drilling Using Neural Networks

With increasing competitive pressures, manufacturing systems in the automotive industry are being driven more and more aggressively. The pressures imposed on the processes and lack of system 'slack' have led to increased use of Tool Condition Monitoring systems. In parallel, there has been wide-ranging research in academia. However, a closer examination shows that there has been very little mig...