... The initial strategy for scale management for the Pelican field involved proactively preventing downhole barite scale deposition during water breakthrough. This was achieved by squeezing scale inhibitor (scale squeeze) to water producing zone utilizing either a vessel or bullheading through...

... to achieve a full equilibrium in the fluid-rock interaction. In short residence time scenarios, the brine during the non-equilibrium stage becomes more saturated in ions for longer, extending the scale risk after water breakthrough. A different behaviour is observed for scenarios with a higher CO 2...

... produced water discharge remediation of hydrates asphaltene inhibition geologist mineral wax inhibition scale inhibition hydrate inhibition concentration hydrate remediation reservoir barium wax remediation baso 4 inhibitor sulphate seawater breakthrough geology production...

...% seawater breakthrough, with a harsh CaSO4 scaling tendency predicted (SR 3.5 at 120°C). A squeeze treatment was planned as part of the mitigation strategy and, in addition, continuous downhole injection of scale inhibitor (SI) was instigated to provide protection to the production tubing, flow line...

..., associated with seawater breakthrough and its retardation can be linked to a number of mechanisms. Certain minerals ( e.g. siderite, FeCO 3 , and/or iron oxides, Fe x O y ) may react with produced H 2 S and retard its progress towards the producer wells. This is a generally beneficial effect...

... and reduces the amount of water produced, hence, reducing the scale risk. TAP injection results in the delay of the injected water breakthrough, which delays the onset of scale formation in the producer; however, it can increase the amount of formation water (hence Ba 2+ ions concentration), mainly from...

... remediation wax inhibition flow in porous media hydrate inhibition oilfield chemistry reservoir simulation paraffin remediation scale remediation production chemistry asphaltene remediation waterflooding upstream oil & gas fluid dynamics breakthrough precipitation oversaturation streamline...

... chemical scale control has not been required through a strategy of careful mixing of lift gas, brines and produced water re-injection. This was combined with understanding fluid flow paths in the reservoir and their likely breakthrough at production wells. Consideration is given to the injection of smart...

... have good communication throughout the oil leg and as a result quick water breakthrough occurs. As well as resulting in an early onset of BaSO 4 scaling, an Enhanced Oil Recovery (EOR) chemical that is injected would more quickly reach the producers and therefore the potential for chemical EOR...

... Intelligence composition asphaltene remediation Production Chemistry asphaltene inhibition Geitungen terrace scale inhibition paraffin remediation baso 4 breakthrough caco 3 formation water composition srso 4 precipitate area south reaction water sample reservoir injection sverdrup field...

... life squeeze treatment Mackay squeeze treatment inhibitor main treatment chemical cost lateral 1 Upstream Oil & Gas lateral seawater fraction life squeeze treatment placement breakthrough lateral 2 water production rate segment 1 Introduction Oilfield Scale Formation...

... breakthrough for each well, the location of breakthrough along the length of the production sections, the feasibility of bullhead deployed squeezes and the implications of barium ion stripping. These issues were all assessed to generate a scale management strategy for the field. Despite uncertainties...

... inhibition Production Chemistry scale inhibition oilfield chemistry breakthrough waterflooding application remediation of hydrates scale inhibitor reaction asphaltene remediation asphaltene inhibition injection water breakthrough seawater wax remediation Modeling & Simulation hydrate...

... enhanced recovery oilfield chemistry scale inhibition paraffin remediation hydrate remediation hydrate inhibition asphaltene inhibition upstream oil & gas breakthrough remediation of hydrates separator stage separator st stage separator injection produced water discharge concentration...

... from an oil well in Kuwait and Berea sandstone were used. Carbon NPs were used as model nanomaterials. The core sample was washed with toluene to remove residual oil, ground to 106 – 250 µm grains, and packed into columns. Carbon NP breakthrough curves were collected in synthetic seawater at room...

... Abstract Over a period of 4 to 6 months one of the Kristin wells had experienced a rapid decline in production. The drop was unexpected and at the time there was no detectable formation water breakthrough in the well. The decline in productivity was interrupted by a number of erratic...

... OPEX and CAPEX cost savings. injection water calculation water analysis production well waterflooding water composition deposition precipitation uw injection sr baso4 upstream oil & gas concentration enhanced recovery baso 4 formation water reaction reservoir breakthrough...

... scaling prediction approach may be useful on other fields where reactive transport reservoir simulations may not be possible. composition reservoir simulation baso 4 case 2 water breakthrough caso 4 formation water injection water breakthrough waterflooding injection water artificial...

... breakthrough remediation of hydrates precipitation scale inhibitor Veslefrikk field inhibitor application productivity Veslefrikk formation damage water cut scale control work Scale Control Strategy qualification tjomsland production enhancement formation water scale inhibitor squeeze scale...

... down from the reservoir together with the high level of bicarbonate and calcium in the formation water. In April 2007 breakthrough of formation water in two of the wells were detected and the subsurface safety valve in one of them showed increasing inertia. In August/September 2007 the first combined...