... images, drilling performance and torque and drag modelling. It was noted that higher weights at surface were having minimal impact on rate of penetration (ROP) and that aside from wear, the PDC dull conditions were also exhibiting signs of lateral vibration damage (tangential fractures and chipping...

... these forces to parameters applied to the drilling bits, such as weight and torque. Upscaling involves geometric remodeling of bits as equivalent cutters and equivalent blades. In the second part, a data-analytic approach is used to combine continuous measurement of downhole data with the developed...

..., by some researchers to identify drilling dysfunctions, will also be highlighted. In this process, it has been shown that nonlinear "torque wedging" causes inaccuracies in dysfunctions identification and discussions. Also, the field data presented in the paper shows that mechanical energy is not a ratio...

... define the state space of the n th order linear differential equation. Therefore, for example, the state space of a second order linear differential equation is composed of the dependent variable and its first derivative. The force and torque balances on particles or bubbles transported...

... operational practice allows a process improvement approach to managing downhole behaviors with drilling rig control systems. drilling operation drilling dysfunction upstream oil & gas directional drilling rotary drilling vibration pipe drilling drillstring design torque international...

... the application of machine learning methods. upstream oil & gas drilling operation semantic web bit design bit selection graph real time system torque drilling fluids and materials drillingdatapoint drillstring design drilling measurement drilling conference calculation proc application...

... to drill that makes a significant impact on cost. upstream oil & gas drilling equipment drilling operation united states government norway government well planning regulator torque bit selection drilling scenario europe government drillstring design drilling efficiency trajectory...

...-characterized liner body installation loading limits and a rigsite digital solution that leverages available measurements and a real-time torque-and-drag and tubular integrity monitoring system to inform the drilling team during running. Surface loads and rates measured by the rig are used as input to top-down...

..., presence of stabilizers/centralizers) and system input actuations (surface WOB/hookload, surface rotational speed (RPM)/torque, mud motor operational parameters, etc.) are defined in the modeling framework. Simulations are run for different drillstring scenarios in a vertical and an actual L-shaped...

...-slip was introduced in the system through an adjustable side force imposed on the drill-string as well as through a stepper motor operating in torque mode simulating the bit-rock interaction. The first series of experiments in the laboratory-scale setup were aimed at evaluating the braking force...

... torque performance reduction Introduction In conventional BOP systems, non-mechanical failures in the hydraulic portion of the system account for over 70% of the system failures. These incidents include controls components, piping, fluid integrity, and sealing related failures. Recognizing...

... measurement instrumentation, including new in-bit sensing, record the tangential accelerations and dynamic torque at various positions in the laboratory rig. The type of excited torsional vibrations match vibrations in the field indicating that learnings in the lab translate to the field. To study...

... frictional wear normal frictional wear exhibition torque whirl equation rop redesign dysfunction step test mse drilling conference forensic workflow surface data wob vibration Introduction Overview Drilling dysfunction represents wasted energy in the drilling process...

... casing and cementing annular clearance geometry drilling conference requirement wob production section torque integrity hole cleaning Abstract Two formation pressure regime shifts coexists on Bajada del Palo field subsurface leading to an additional casing seat to keep well design...

... Abstract Downhole separation of rotary shouldered connections in drill strings cause immense financial loss to oil and gas operators. Unfortunately, there seems to be an increasing trend in these downhole failures, particularly in deep water operations where the surface torque is limited...

... dysfunction bit torque equation rotational speed torque petroleum engineer Introduction The uses of Mechanical Specific Energy (MSE) in field operations introduced almost two decades ago have continued to evolve ( Pessier and Fear 1992 , Waughman and Moore 2003 , Dupriest and Koederitz 2005...

... and maximize the use of surface sensors, thus doing more with less. IMoDD features a new zeroing beyond the traditional workflows of zeroing the surface sensors related to weight and torque at the connection. A new method, Second-order Identifier of Maximum Stand-pipe-pressure: SIMS, is introduced. The method...

... will be able to withstand the expected load provided by the torque and drag modeling. Optimizing strength and performance Once a classification of the expected environmental severity is created, the optimization of the drill stem product material properties can be left to the OEM. The OEM will be able...

... bha concave torque magnet installation Introduction The whipstock installation detailed in this paper took place from a drillship in the Fourier Deep field, primarily a gas play, which is part of the extensive Na Kika project located around 140 miles southeast of New Orleans in 6,970-ft...

... Abstract Well construction activities including liners and lower completions deployment have historically realized downtime and unforeseen challenges. Surface data, torque and drag simulations, and previous experience are all sources of data commonly used to plan and facilitate...