... considerations for an engineer 1. Soft string model vs stiff string model 2. Survey calculation method based on minimum curvature 3. Appearing and vanishing tortuosities after the casings have been run. Because of various underlying assumptions, the friction factor calibration is done often to match...

... operator lateral tortuosity petroleum engineer emission international drilling conference requirement lateral drilling Introduction New Solution This paper introduces a new solution that provides another step forward in time-efficient delivery of directional wells and borehole quality...

... variable to the project was deemed an unattractive option. Many complex lateral wellpaths have been drilled and completed in STX. Understanding the tortuosity associated with these challenging wellpaths was believed to be crucial for accurate modeling for the U-Turn project. Cumulative degrees and DDI...

... was created that outputs all well path tortuosity related metrics. This paper discusses the calculation method as well as the layout and structure of the web application. Abstract In recent years multiple papers on borehole torsion, well curvature, and well profile energy have been published...

... economically constrained environment. real time system well planning reservoir characterization measurement while drilling mwd drilling data acquisition drilling measurement drilling operation error model tortuosity upstream oil & gas bha sag correction continuous data correction...

... tendencies of the BHAs were used to estimate the impact on wellbore quality using the tortuosity metric proposed by Jamieson (2019) . Typical well plans for both basins had curves of 10 degrees/100ft with no well plan greater than 12 degrees/100ft. Typical bottom hole assemblies were capable of >15...

... to the attitude-hold controller. The controller then generates a control signal to minimize both deviation from a reference trajectory and wellbore tortuosity. Case histories from wells drilled using the automated attitude-hold control feature are presented. The field data include results from vertical, tangent...

.... A BHA model evaluates the bending moment at critical housing locations at incremental measured depths. Changes in bending moment throughout the wellbore indicate variations in borehole tortuosity. Variation in borehole diameter during the slide and rotate modes identifies overall borehole rugosity...

... In addition to unplanned tortuosity metrics, there are also metrics that quantify wellbore tortuosity without distinguishing between planned and unplanned tortuosity. A more complete discussion of these metrics is available in D’Angelo et al. 2018 , but in this paper, we will focus...

... Modeling & Simulation MWD well planning drilling data acquisition drilling operation trajectory design MWD data Simulation microtortuosity geometry cement slurry stiff-string model Directional Drilling displacement high-resolution mwd survey data tortuosity drilling...

... Abstract Extremely tortuous wells pose many wellbore quality repercussions and poorly affects several well drilling and production-based operations. To date, many indices have been developed for accurate tortuosity identification, but few have had the capability to efficiently mirror...

... design concept breaks this paradigm by providing a PDC bit that tracks better than conventional bits for significant gains in directional drilling efficiency. Directional Drilling bit selection gauge Bit side load tortuosity BUR bit run Control Chart lateral section assembly correction...

... length, L csi the curve length and L xsi the chord length of each individual curve, n represents the number of curvatures in the wellbore. This method provides a measure of wellbore tortuosity that is based on universally available directional surveys, while addressing some of the shortfalls...

... α = Rate of inclination change (dropping off is a negative value), (°)/30 m or (°)/100 ft κ ϕ = Rate of azimuth change (decreasing azimuth is a negative value), (°)/30 m (°)/100 ft Abstract Conventional methods calculate tortuosity based on the predetermined shape of the trajectory using...

... drilling operation friction trajectory tortuosity mud motor well planning Upstream Oil & Gas wellbore trajectory twist compensation trajectory design curvature compliance inclination Drilling Equipment penetration rate wellbore torque contact force relaxation length bit...

... as effectively in the Wolfcamp B, whose geology is a product of higher energy deposition when compared to the Wolfcamp A. real time system Upstream Oil & Gas real-time downhole data resolve lithology drilling operation continuous inclination dogleg severity Wolfcamp pad 2 tortuosity...

... or inaccurate tortuosity. TVD assurance utilizing the high-definition survey technology has been used with several new approaches, for example, to reduce rig time on surveys by increasing the interval between stationary surveys without degradation in positional certainty. This technology also helps...

... Abstract Torque and drag [T&D] are critical elements in drilling deep vertical wells with unnoted tortuosity along the borehole and in extended-reach and deviated wells with high and repeated tortuosity. Current T&D models generate unreliable predictions due to the assumption...

..., bending moments, and contact loads along the wellbore. In such cases, it was suggested that improved T&D models will require a robust, more advanced and continuous 3D trajectory model at tortuosity and rugosity ( Stockhausen et al 2003 ). Since accurately determining T&D parameters is a technology...

... horizontal section well trajectory design torque drilling performance tortuosity lateral section assembly horizontal leg Artificial Intelligence friction mud weight BHA well 2 horizontal well optimization tool weight transfer trajectory design Drilling Introduction Extended reach...