... with four full strain gauge bridges to measure: bending in the x, bending in the y directions, WOB, and TOB. Two three-axial accelerometers sense Axial acceleration, lateral-x acceleration, and lateral-y acceleration. The y-accelerometers are also summed in a way...

... was deemed a requirement and a replacement search was implemented. data mining Upstream Oil & Gas drilling rig drilling fluid management & disposal accelerometer laboratory drilling operation Colorado School drilling data sensor student future drilling engineer rig core rod...

... to the tool centerline, while the other reports RTZ (radial, tangential, and axial) accelerations based on sensors offset from the centerline. The RTZ set will contain crosstalk between the lateral 1, lateral 2, axial set and torsional and radial vibrations, unless corrected with additional accelerometers...

... of downhole data recorders on the market comprising sensors like accelerometers for vibrations, magnetometers and gyros for rotary speeds, drill pipe and annular pressure and temperature sensors, strain gages for weight on bit, torque on bit and bending forces ( Finger et al., 2003 ). For vibration...

... detection system whirl drilling parameter stabilizer bha rotation upstream oil & gas average whirl drilling operation gco accelerometer borehole sensor rotary speed vibration backward whirl displacement transducer real time system pivot stabilizer Introduction An increasing...

... trajectory between the two surveying stations is continuously surveyed using three accelerometers and three MEMS gyroscopes. The computation algorithm is based on strap down Inertial Navigation System mechanization and Kalman filtering. The inputs to the continuous drilling survey system...

... spectrum plot wireless sensor interface module production logging node vibration direct reading Mesh Network production monitoring frequency Gateway data collector software Reservoir Surveillance accelerometer repeater air compressor motor vibration network gateway Introduction...

... azimuth error initialisation survey tool continuous survey error model scale factor error accelerometer axis error term error coefficient inclination Introduction Work in recent years by a group of industry experts, members of the ISCWSA, culminated in the publication of an error model...

... geophones and MEMS accelerometers are coupled with the collar. The hydrophone is exposed to the well fluid. The internal MEMS accelerometers are coupled to the tool's bore. All the external sensors are easily accessible and removable from the tool (see Fig. 1 ) to allow for simple diagnostics...

... process coarse alignment gyroscope grade fog-based inertial measurement unit sensor attitude component mwd directional drilling drilling equipment upstream oil & gas spe 84452 utilization orientation drilling operation accelerometer navigation drilling measurement fine alignment real...

... and equipment drilling equipment deviation rate drilling test assembly spe 84449 hole size upstream oil & gas accelerometer rss hole quality inclination configuration outer sleeve shaft petroleum engineer prediction rotation compressive strength bha configuration information slimhole...

... accelerometer data field test result drilling noise slowness leggett iii information acquisition data quality real time system field test result demonstrating accelerometer frequency spe 71732 configuration well logging patterson dubinsky Introduction Demand for quality LWD acoustic...

... accelerometers embedded in rock samples in a simulated wellbore environment showed signal responses which are under review in anticipation of analyzing ‘look-ahead-of-bit’ requirements. The results provide a unique opportunity to examine seismic wave propagation in samples shorter than a wavelength...

... referencing to monitor changes in the local field addresses two major shortcomings in magnetic surveying. Multiple-survey analysis can be used to monitor performance of accelerometers as well as magnetometers. Accelerometer variance is measured but not routinely used to make corrections when...

... real time system accelerometer dynamic sensor cutter spe 26341 downhole rpm drill collar rpm upstream oil & gas lateral shock vibration drillstring design bit selection bit whirl drilling operation drilling data acquisition united states government bit design stick-slip motion...

... data trajectory design cartridge inclination shock cycle database downhole shock cycle drillstring design well planning bit run frequency probability statistical analysis shock conference cumulative pump time mean shock spe 22537 failure analysis bit run 29 accelerometer failure...

... a smaller diameter and continuous survey capability. inclination spe 16679 centralizer gyro gyro drift cavity rotation correction borehole accuracy borehole wireline accelerometer 3-axis laser gyro frequency instrument observer borehole spe 16679 hense wireline surveying spe 16679...