... flooding projects, controlling the viscosity of injected polymer solution is critical because the polymer cost is one of the most significant cost elements in the project economics. The polymer viscosity is routinely measured in the laboratory using fluid samples taken manually at different sampling points...

...Corrosion Tests Gelled acids have been utilized for a long time for carbonate stimulation. These high-viscosity fluids utilize a crosslinkable polymer for increasing the acid viscosity to achieve deep reservoir penetration and uniform stimulation ( Rabie et. al. 2011 ; Gomaa et al. 2010...

... to the oil-water contact (OWC) where the crude has been slightly biodegraded to 29°API higher in the oil column (average 27°API). The crude has a low gas-oil ratio of ~180 scf/bbl and the in-situ oil viscosity above the biodegraded zone ranges from 9-22 cP (T. O'Sullivan et al, SPWLA 48 th Annual Logging...

... polymer flow in porous media. Polymer shear-thinning behavior is usually observed in shear dominant flow, while shear-thickening is exhibited in the extensional dominant regime ( Sochi, 2010 ). In the latter regime, the elongational (or extensional) viscosity of the polymers rises rapidly and causes...

... (SP) flooding, hybrid methods (e.g. thermal combined with solvents or CEOR methods), among others. Research works in CEOR methods for Venezuelan highly viscous oil reservoirs have shown that high oil recoveries may be possible for oils with viscosities up to 13,400 mPa.s. On the other hand...

... be met by the upscaled process design related to polymer solution quality, viscosity, concentration, injection rate and skid running time. The main challenges and lessons learnt from the two PIT operations were implemented in the polymer skid upgrade and helped define the polymer solution and equipment...

... dynamic flare monitoring platform envelope viscosity operator disposal sensor media tablet Introduction Environmentally friendly and safe disposal of produced hydrocarbons at the surface during the well test and well clean-up operations performed at the exploration, appraisal...

... The principle of polymer EOR is to improve volumetric sweep efficiency by increasing water viscosity, hence,decreasing the mobility of water (M w ). The optimal water viscosity is ideally based on achieving mobility ratio (M R ) less or equal to unity. (1) M R = M W M o...

... multifunctional additive zr-la hydraulic fracturing ph 5 stability viscosity permeability presented Introduction Vitamin C is a carbohydrate molecule that was discovered in the 1920s. It was initially given the name hexuronic acid and was later renamed "Ascorbic" acid due to the molecule’s anti...

... challenges and applicability of the proposed models for other fields and data sets. pvt measurement gas injection method machine learning enhanced recovery upstream oil & gas artificial intelligence artificial lift system composition viscosity fraction gas lift prediction psat abu...

... of asphaltenes, which together with sand production in the process, leads to making phase separation processes more complex. Furthermore, the application of chemical methods could cause phase trapping (for the surfactant case) with impact on chemical losses, and water- in-oil emulsion with high viscosity after...

.... Differential pressure transducers are used to measure the pressure drop over a fixed length in each size of pipe, and this data, along with flow rate, is used to calculate fluid viscosity. All components are installed within a standard ISO shipping container for ease of transport and deployment at the wellsite...

... The viscosity curves of ESN at 20 °C were measured by rheometer (Modular Compact Rheometer: MCR302, Anton Paar). Both ESN samples showed similar viscosity curves ( Figure 4 ), such thixotropic characteristic is one of the important properties of ESN. Based on this characteristic, ESN is flowable...

...: CO2 dissolution in oil causes the oil to swell and expand out of dead end pores. Reduction of oil viscosity: viscosity of crude oil decreases as it becomes saturated with CO2 at increasing pressures, which assists in facilitating oil flow to the wellbore. Improvement of internal reservoir...

...Foamability of Foamed Acid The foamed acid apparent viscosity measurements for Armovis surfactant in the presence and absence of polymer were carried out under reservoir conditions (1,000 psi and 120 °C). Also, it was evaluated at a shear rate of 100 1/s and foam quality of 70%. The effect...

...: Abstract Alkali injection leads to in-situ soap generation of high TAN number oil and residual oil reduction accordingly. We are showing that the performance of AP floods can be optimized by making use of lower polymer viscosities during injection but increasing polymer viscosities in the reservoir owing...

... location, conformance, etc By stopping these polymer patterns, and also by improving the injection uptime, the team decided to increase the polymer viscosity by ~30% on the remaining polymer injectors using the same polymer plant capacity. Increasing the polymer viscosity should improve the areal sweep...

... dynamics pit polymer concentration reservoir pfo permeability carbonate reservoir waterflooding enhanced recovery viscosity masalmeh injectivity abu dhabi international petroleum exhibition zone polymer injection conference polymer viscosity Introduction The reservoirs tested...

... below parting pressure flowed into and through the Wara reservoir matrix as evidenced by the increase in downhole pressure with increasing injection rate in line with Darcy’s law. Polymer solutions expressed in-situ viscosities of up to 2.75 cP when injected below fracture parting pressure while...

... enhanced recovery sandpack viscosity saturation foam pregeneration composition coreflood surfactant formulation Introduction Abu Dhabi possesses several high temperatures – high salinities carbonate fields. Due to these harsh conditions, the tertiary production of these fields using...