... artificial reef back eddy marine organism vortex drag force wake region settlement platform production logging flow field strength structural hydrodynamic viability pressure distribution organism flow direction suitability vibration Introduction Decommissioning industry has many ways...

... directional drilling elastomer rop xt motor drilling equipment agitator run pressure spike hole section drilling operation section length toolface control agitator-system bha thailand standard motor agitator system vibration tvd improvement drilling efficiency drillstring...

... recommendations in the 17in × 20in hole-opening section, the operation went smoothly as planned for the first 1184m until a vibration level increase was observed, believed to be due to an unexpected sudden increase in the hardness of the interbedded formation. Realizing the potential of similar risk happening...

... Abstract This is a machine train consists of gas turbine driving an air-cooled synchronous generator (3600 rpm and 80 MW rated power), which showed increasing vibration levels on the generator bearings after each shutdown/startup event starting October 2020. A multichannel analyzer was hooked...

... Raw vibration waveforms measured on assets on site are typically complex and contain various frequency components. Vibration is usually quantified by its amplitude to evaluate severity of vibration, but the amplitude is just a characteristic of vibration and not all information can be obtained...

... the effect. drillstring design upstream oil & gas thread compound torsional stiffness offshore technology conference drilling operation friction mut backoff drill pipe selection bot stand torque drill string connection backoff directional drilling connection backoff vibration top...

... drilling systems and equipment drilling equipment upstream oil & gas drilling performance stabilizer drilling operation string stabilizer real time system log analysis complex reservoir carbonate reservoir hybrid rss inversion vibration formation evaluation tool response society...

... group nano catalyst blank oil sample viscosity reduction downstream oil & gas mechanism experiment oilfield chemistry upstream oil & gas oil sample single nano catalyst action synergistic action asphaltene ultrasonic sonochemistry heavy oil vibration Introduction...

... Abstract An excellent vortex suppression device, in the form of an antinode fairing is presented towards reducing the Vortex Induced Vibration of structural members exposed to flow. An analytical procedure is also developed to optimise the depth and location of the fairings along the members...

... downhole optimization tool with highly experienced engineers enable the interaction with real-time parameters. That's the key factor to overcome extended-reach challenges such as Steering in different environments Vibrations Transfer of usable energy Hole cleaning and quality indications...

... Abstract Vibration-induced fatigue accounts for more than 20% of process piping failures. This integrity threat is often not addressed as part of traditional mechanical integrity programs. Most vibration-induced fatigue failures can be prevented using a proactive, risk-based inspection (RBI...

... Abstract The paper discusses the successful application of HF6000 hardfacing on the drilling bottom-hole assembly (BHA) in TT development wells in offshore Sarawak, Malaysia to overcome tool wear and high vibrations while drilling hard and abrasive formation. HF6000 is a hardfacing application...

... Abstract Drilling is one of the most costly and risky activities in oil and gas reservoir exploration and field development. A portion of this high cost is related to unwanted vibrations of the drill string. Assumed as the primary cause of many problems, drill string vibration is an ongoing...

... Abstract The paper reviews the whole project and introduces the casing string structure of Riserless Drilling. Then it establishes the shallow Riserless Drilling longitudinal vibration model based on vibration theory, soil mechanics, fluid mechanics. We assume the soil layers around the casing...

... vibration hole enlargement operation upstream oil & gas high-temperature interval operation efficiency offshore technology conference drilling operation service provider drilling reamer downhole temperature objective hole-enlargement technology hole enlargement tool operator...

...OTC-26715-MS Downhole and Surface Vibration Measurement Wenkai Gao, Xiurong Dou, Hengtian Jia, and Hao Peng, CNPC Drilling Research Institute Copyright 2016, Offshore Technology Conference This paper was prepared for presentation at the Offshore Technology Conference Asia held in Kuala Lumpur...

... vibrations, wellbore packoff, plugged flowlines, bit balled-up, premature damage of connections and drilling shoe, float collar washout and slow drilling-out of drilling shoe. Various mitigation plans and actions were put Table 3 Risk Assessment for Casing Drilling Operations Risk Causes Consequences...

... BS7608 , 1993 . Fatigue design and assessment of steel structures . Carucci , V.A. , Mueller R.T. , 1982 . Acoustically Induced Piping Vibration in High Capacity Pressure Reducing Systems . ASME 82-WA/PVP-8 Energy Institute, 2008 . Guidelines for the avoidance...

... subsea system vibration source strength subsea processing fiv installation limitation excitation guideline application mechanical response analysis production monitoring multiphase flow frequency production control dynamic force screening production logging reservoir...

... . Sound Vib 31 ( 4 ): 14 – 23 . Lang , G.F. and Snyder D. 2001 . Understanding the Physics of Electrodynamic Shaker Performance . Sound Vib 35 ( 10 ): 24 – 33 . OTC-26597-MS Acoustic Transmitter Active Vibration Control for Sonic Logging Yiming Zhao, Xingyong Song, and Jason...