![]() ![]() jet nozzle sizes) such that maximum drilling rate is achieved. The new method can be easily used in the field to determine best combination of gas/liquid injection rates and total bit flow area (i.e. Classical theory of hydraulics optimization for maximum drilling rate calls for either the use of empirical correlations or the use of optimization theory to maximize some arbitrary objective functions such as maximum bit hydraulic horsepower or jet impact force. We offer customised, high-valued services in the form of Well Planning & Engineering, Well Completion & Commissioning, Well Operation Optimisation, and Field Development by collaborating Innovative technology, skilled professionals, and reliable practices. maximum bit hydraulic horsepower/jet impact force criteria).Ī new methodology has been suggested to determine optimum gas/liquid injection rates for maximizing drilling rate when drilling with foam while keeping the bottom hole pressure minimum. This is done by the ADT and/or AFT (Applied Fluid Technology) specialist by using static and RT-models for hydraulics, hole-cleaning and Torque&Drag to predict. Drill Insight is a specialist consulting company offering Model Driven Decision Support services. In this study, the new model has been used to re-visit classical theory of hydraulic optimization (i.e. In some cases, any of these variables, when optimized, will clean the hole, whereas in other cases one is more effective than the others. ![]() The variables most commonly optimized are impact force, hydraulic horsepower, and jet velocity. Compressible nature of the foam makes the use of conventional optimization theory difficult.Ī transient-mechanistic model of cuttings transport with foam has been developed and numerically solved recently. We optimize annual pressures, hole clean up cycles, circulating system pressures, tripping time, and ROP within mud weight windows to manage hydraulics. Many attempts have been made to optimize certain bit hydraulics variables to cause perfect cleaning. This thesis examines hydraulics optimization using conventional drilling fluids and nano-based drilling fluids. A properly designed hydraulic system will help to improve drilling efficiency and lower drilling time and cost. The theory of hydraulic optimization of drilling with conventional (incompressible) drilling fluids is well known and has been widely practiced in the industry.Ĭlassical theory of hydraulics optimization for maximum drilling rate calls for either the use of empirical correlations or the use of optimization theory to maximize some arbitrary objective functions such as maximum bit hydraulic horsepower or jet impact force.Ĭoncept of hydraulic optimization for maximum drilling rate when drilling with foam, however, is not well investigated. Hydraulics optimization is an attempt to maximize the pressure drop across the bit by minimizing the parasitic pressure losses. The i-Trak automated hydraulics optimization service can also be leveraged to help optimize hole cleaning to maximize drilling rates of penetration (ROP) and provide early warning of potential stuck-pipe incidents that would otherwise add significant time and cost to your drilling and liner-running jobs.
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