.... The nanoparticle suspension was injected at 0.1 microliter/hour. The channel was made of glass and thus the water-based ferrofluid was the wetting fluid. Initial ferrofluid flooding experiments were performed under a static magnetic field. This magnetic field caused oil droplet deformation, dynamic break-up...

... contains an induction coil that emits an alternating magnetic field. The alternating magnetic field induces heat in the nanopaint coating (i.e. coating with embedded paramagnetic nanoparticles) on the pipeline's inner wall and in the pipeline wall itself. The heat then melts and peels off the wax...

... and control-valves upstream of the resonator ensured that the resonator could obtain samples that were mostly oil. By combining the resonator with a solenoid that created a large magnetic field across the oil, the resulting system provided spectroscopic data similar to that available in chemical laboratories...

... magnetic field log analysis core analysis NMR Tool evaluation Upstream Oil & Gas water saturation gradient nuclear magnetic resonance unconventional reservoir society of petroleum engineers reservoir NMR intercalated reservoir relaxation time interaction Introduction Determining...

... meters. More than 2,000 well pairs have been drilled using a ranging technique in which a device generating a magnetic field is deployed in one of the SAGD wells, and a device to measure the magnetic field is deployed in the adjacent SAGD well. This ranging technique has succeeded in accurately...

... Abstract NMR (Nuclear magnetic Resonance) measurements have been extensively used for characterizing porosity and pore size distribution with assumption of constant magnetic field gradient within porous media. However, internal gradients of magnetic field generated due to the presence...

...) to remove the dispersed oil from produced water is a promising way to overcome the difficulties that the current treatment technologies face, since the MNPs-attached oil droplets can be quickly and efficiently separated with application of an external magnetic field. The MNPs can be also regenerated...

... is a promising alternative due to their quick response to external magnetic field, allowing easy separation of oil droplets on which MNPs were attached from water. The goal of this study is to prove the concept of magnetically separating oil droplets from produced water using surface-coated MNPs. Batch-scale...

... intelligence frequency magnetic anomaly enhanced recovery upstream oil & gas receiver thermal method steam-assisted gravity drainage sensitivity slug magnetic response primary magnetic field conductivity hydrodynamic dispersion magnetic permeability sagd ferrofluid slug magnetic field...

... magnetic reference stations. The different land and sea configuration, distant offshore oil and gas fields, higher geomagnetic latitude and different behavior of the magnetic field require the procedures to be reassessed before applied to the Barents Sea. To reduce drilling delays, procedures must...

... magnetization shell international exploration society of petroleum engineers survey program relief well feet perpendicular operator magnetic field magnetization spe 159404 Introduction The subject well is located in the Gulf of Mexico, approximately seventy (70) miles offshore in water depths...

... of permeability can often be made. In this work we utilize high resolution X-ray CT images Berea and Bentheimer sandstone and simulate the NMR relaxation-diffusion responses for the case of drainage by a non-wetting fluid at different magnetic field strength (2MHz, 12 MHz, and 400 MHz), calculating internal...

... in this paper may contribute to safer and more productive offshore operations at high latitudes. drilling operation jäckvik variation variometer station upstream oil & gas electrojet tromsø well planning declination correlation rørvik spe 159679 latitude magnetic field magnetometer...

... operation effective tension torque inclination upstream oil & gas deflection magnetic field expression millheim equation stabiliser sawaryn effective length engineering application assembly correction spe 147242 axis tangency Introduction Globally, drilling engineers may now...

... simulations performed for this work are a significant addition to the knowledgebase of the industry. waterflooding spe 146735 log analysis floodwater front reservoir monitoring secondary magnetic field enhanced recovery upstream oil & gas current density transmitter wilt novel transient...

..., the status of the project and the expected results. wellbore open hole spe 133129 azimuth assembly completion drilling operation transmitter magnetic field directional drilling intersection bha upstream oil & gas moulded ceramic centralizer positional uncertainty reservoir...

... ; Oldenburg et al , 2000 ), in particular to guide the ferrofluid through a porous formation by exposing it to a strong magnetic field. Our application and motivation are different from the previous subsurface applications of ferrofluids. The motivation comes from biomedical engineering where super...

... Numerous ranging techniques and technologies have been developed. Two general categories of service, "active" and "passive", have emerged. Simply stated, active techniques involve the enhancement of the magnetic field. Passive systems rely solely on the magnetic characteristics of the casing...

... relaxation time reservoir surveillance production monitoring molecule nmr interaction functional group frequency application production control fraction magnetic field relaxation spe 89978 upstream oil & gas flow metering nucleus information quantification nuclear magnetic resonance...

... mr-wd tool reservoir fluid fraction spectra porosity well logging permeability mr-wd data formation evaluation magnetic field nuclear magnetic resonance relaxation spectra spe 77395 magnetic resonance drilling operation nucleus mr-wd nuclear magnetic resonance while drilling...