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Keywords: electrode
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2023
Paper Number: OTC-32231-MS
... mode that allows for long-term subsea operation, without the need for system retrieval for cleaning with acid or alkaline is described in detail. Full-scale testing performed for 6 months established the various process parameters (current density, flow rate, polarity intervals and duration, electrode...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31273-MS
... of intelligent PIG was proposed. The prototype sensor was tested in oil filled pipelines. The results showed that the deposit type (wax/scale) and the deposit thickness can be estimated using the ET technology. In ET pigging applications, metal electrodes are attached on the surface of the sensor and some...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30841-MS
... resistivity measurement sensor, which is configured to accurately measure R w in the flowline of a formation testing tool. The induction-based operating principle of the sensor eliminates the use of electrodes and the associated fouling of the measurement due to coating or accumulation of particles...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29284-MS
... by which the PSW destroys rocks It also provide some methods to quantitatively evaluate damage of rock. drilling time drillability mechanism experiment drilling operation aac upstream oil & gas plasma shock wave electrode amplitude attenuation coefficient psw ultrasonic wave shock...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27622-MS
... and identify build-up materials with the prototype system. tomography deposit relative permittivity air injection crude oil flowline upstream oil & gas offshore technology conference electrode error estimate artificial intelligence pipeline pigging permittivity thickness synthetic...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2011
Paper Number: OTC-21649-MS
... electrical heating When two parallel cylindrical electrodes, with radius r , are placed a distance, 2 d , from each other and an electric voltage, V (+ 2V on one electrode, - 2V on the other), is applied, the electric field line pattern[6] is produced as shown in Figure 3. Assuming dielectric properties...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2011
Paper Number: OTC-21973-MS
... component atmospheric contamination base material pipeline corrosion electrode riser corrosion equipment investment repeatable process resistance corrosion inhibition heat input process welding handbook molten weld pool OTC 21973 Corrosion-Resistant Alloy Cladding of Subsea Componets David R...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2011
Paper Number: OTC-22003-MS
... otc 22003 treatment technology electrode cathode coagulation ph 5 upstream oil & gas OTC 22003 Atlantic Canada Offshore R&D: Treatment of oilfield produced water by chemical coagulation and electrocoagulation J. Younker, S.Y. Lee, G.A. Gagnon, and M.E. Walsh, Dalhousie University...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2010
Paper Number: OTC-20702-MS
... of the coupons are held in line by a custom clamp which also housed a screw used to make electrical connection with the sample for electrochemical data collection. The fixed hollow block in the center of each column contains a reference and auxiliary electrode which are also needed for electrochemical...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2007
Paper Number: OTC-19027-MS
... to the electrode to prevent porosity and the level of exposure of the arc and the weld pool during welding. Long arc lengths in traditional FCAW-S designs have historically been the road block to achieving acceptable ductility and toughness. While gas shielded flux cored arc welding (FCAW-G) and Submerged arc...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2004
Paper Number: OTC-16321-MS
... high voltage between two electrodes exerts a force on the droplets that press them together and helps drain the film between them. This enhances coalescence to larger droplets. The coalescence of droplets primarily depends on the electrostatic induced forces, film rheology, collision frequency (e.g...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2003
Paper Number: OTC-15353-MS
... the inlet spreader design, and installing new high voltage electrodes. Once these improvements are made and the new compact electrostatic technology is implemented, it is estimated the vessel capacity will increase significantly, while maintaining the required oil specification. If successful...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2003
Paper Number: OTC-15264-MS
... sediment subsea system electrode Abstract An experimental study on electrokinetic improvement of the load-carrying capacity of offshore foundations embedded in soft clays is conducted. The paper presents a summary of method and results of two series of electrokinetic tests conducted on natural...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2002
Paper Number: OTC-14143-MS
... seafloor williamson electrode investigation otc 14143 tdc system formation factor porosity electrical method application offshore technology conference voltage resistivity conductivity sediment structural geology reservoir characterization cable tdc data polarization upstream...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2001
Paper Number: OTC-13216-MS
... upstream oil & gas vertical velocity pipe spreader dehydration system vessel wall collector design process efficiency orifice simulation flow velocity spreader pipe otc 13216 offshore technology conference collector electrode cfd simulation kinetic energy diameter flow...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1997
Paper Number: OTC-8323-MS
... to petroleum seepage. Shipboard equipment is employed to emplace in the sediment an insulated 3-met{:r probe bearing a series of platinum electrodes. The potentials of the latter are measured against a Ag/AgCl reference by an electrometer system in an associated pressure vessel. An altimeter records depth...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 1994
Paper Number: OTC-7413-MS
... borehole wall electrode dip-pad section orientation investigation imaging log pad pressure pad contact resistivity trace resistivity image low side log analysis well logging standoff instrumentation upstream oil & gas borehole displacement anisotropy dipmeter dipmeter...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 1993
Paper Number: OTC-7214-MS
... grades. /t is questionable whether manual welding techniques, such as traditional stick-electrode welding, will consistently achieve the required weld properties. As a result of this, more emphasis will be placed on the utilization of mechanized pulsed-gas-metal-arc (PGMA) welding equipment...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 1991
Paper Number: OTC-6558-MS
... of the multi-electrode signature as a lithologic change in the sub- sparker source. Calibration experiments surface. Finally, an ability to control andperformed in Ivfree ffeldtt conditions have alter the length and shape of the emitted shown that the output is tunable by varying pulse would permit a tuning...

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