...Chemicals. Materials and Methodology Abstract Low salinity waterflooding improves displacement efficiency in initially oil-wet reservoirs if it can alter wettability, but it is often a slow process. Polymer flooding usually does not improve displacement efficiency, but enhances sweep...

... Moreover, several studies have been conducted on the effects of LSP floods on the geochemical interactions between the rock-brine interfaces and the effects on polymer viscosity. Unsal et al. (2018) reported on the influence of LSP in increasing polymer injectivity whilst decreasing retention...

...Material The novel polymers were supplied by Sunita Hydrocloids Inc. For this research, three different TDS brines were prepared, 231k ppm, 150k ppm, and 70k ppm (7% KCl). Brine compositions are shown in Table 1 . All chemicals were acquired locally. In this study, different concentrations...

... Abstract Polymer injection has been widely established for mobility and conformance control during enhance oil recovery (EOR). However, its role in resolving the water-channeling problem in carbonate reservoirs becomes challenging due to the existence of heterogeneous and complex fracture...

... for lateral flow control and isolation. These profiles are designed such that a special tool can be set inside the window for a specific objective. Completion Window completion installation and operations production control drilling operation enhanced recovery polymer enzyme upstream oil...

... In addition to polymer flooding, also Alkali Polymer (AP) and Alkali-Surfactant-Polymer (ASP) applications have been widely studied. However, the number of large-scale applications has not increased at the same pace as polymer flooding applications without using alkali or alkali and surfactants...

... damage by penetrating into the matrix and blocking the flow path. To regain the conductivity of the damaged area, a bioremediation method was developed and validated by a microfluidic approach. Modified nutrients were used to stimulate the indigenous bacteria that could consume or break the polymer...

... upstream oil & gas flow in porous media fluid dynamics miscible method gas injection method artificial intelligence evolutionary algorithm saturation wag flood permeability efficiency chemical flooding methods co 2 pag polymer ooip enhanced recovery flood flood experiment...

... invasion polymer Introduction - Wellbore Stability Overview Unconventional formations have been operationally complex and costly to drill. Shale, in particular, can prove challenging due to its heterogeneous nature, characterized by nano to micro sized pore distribution, low permeability, pre...

... temperature (HPHT) or downhole condition. The detrimental rheological properties of WBMs under HPHT result into pipe sticking, low rate of penetration of the drill bit and requirement of high torque for drilling operations. The bentonite clays, polymers, or combinations of these have employed to maintain...

... formulations used in this study included field samples of oil-based drilling fluids as well as laboratory samples formulated with bentonite and other polymers such as partially-hydrolyzed polyacrylamide, synthesized xanthan gum, and polyacrylic acid. Detailed rheological characterizations of these fluids used...

...Polymer Flooding as an EOR technique Polymer flooding can successfully reduce the remaining oil saturation after waterflooding and improve oil recovery. Polymer injection projects outnumber other chemical EOR types for a broader range of reservoir conditions. Despite the lower incremental oil...

... oil and filtering through a 0.5-μm in-line filter. Abstract Polymer transport and retention affect oil recovery and economic feasibility of EOR processes. Most studies on polymer transport have focused on sandstones with permeabilities (k) higher than 200 mD. A limited number of studies were...

... chloride) tracer in deionized water or a dilute polymer solution is an effective means for characterizing the pore structure and for predicting the pore volume to breakthrough and diversion performance of VES acids. High-permeability grainstones such as Indiana Limestone, where most of the rock porosity...

... bones keeps the polymeric molecules stretched due to repulsion. The impact of hydrolysis in presence of divalent cations is more complex. Divalent ions can lead to coiling of the HPAM molecules. In presence of divalent ions, the polymer viscosity decreases beyond a certain threshold DOH. HPAM can...

... . Polymeric Surfactants for Enhanced Oil Recovery: A Review . Journal of Petroleum Science and Engineering . 145 : 723 – 733 . https://doi.org/10.1016/j.petrol.2016.07.007 . Rashidi , M. , Blokhus , A. M. , Skauge , A. 2010 . Viscosity Study of Salt Tolerant Polymers . Journal...

... of EOR screening and evaluation workflows. The need is demonstrated by various laboratory and field observations across many studies. For example, at the lab scale, Zheng et al. (2011) observed that polymer breakthrough with the produced fluids yield tighter emulsions. At Cambridge Minnelusa field...

... fracture extension within the producing zone, optimizing geometry for increased hydrocarbon production while limiting excess water. Polylactic Acid (PLA) polymer is self-degradable, compatible with reservoir fluids, and has a variety of compositions for different temperature applications. Blending proppant...

... pressure in the fracture and control the height of the rupture. The goal of this research is to develop such fluid. hydraulic fracturing proppant polymer concentration composition surfactant frac fluid fracturing fluid porous medium experiment proppant transport air bubble fracturing...

...Materials and Methods Synthetic Brines: Abstract Even though the influence of wettability alteration on imbibition is well-documented, its synergy with Interfacial-Tension (IFT) for Alkali/Nanoparticles/Polymer flooding requires additional investigation. Particularly, when the oil Total...