... injectivity. In this study, a novel foamed gel system containing a composite of nanosheet material (NS), and viscoelastic surfactant (VES-SURF) was developed for inhibiting undesirable water in different watercourses of high permeable zones (zones far away from well, transient zones, and near-wellbore zones...

... and parameterization, and the simulation of a synthetic crude/surfactant/brine system where the interfacial properties are measured. We investigate the potentiality of exclusively using simulation to understand the influence of molecule composition and how modifying their structure can lead to a potential candidate...

... MΩ.cm was used to generate the de-ionized water (DI-H 2 O) for all experimental procedures. 37 wt.% HCl was purchased from a local supplier. A corrosion inhibitor intensifier. Iron control additives. Two surfactants were identified and used as a reaction accelerator; here they are denoted...

... investigating various chemical EOR methods, including surfactant, polymer, alkaline-surfactant (AS), alkaline-surfactant-polymer (ASP), nanoparticle, and low salinity water injection (LSWI), were collected. Factors with the greatest influence on the performance of a given EOR method were statistically examined...

... other equipment such as boilers and heat exchangers. organic acid surfactant solubility new innovative technique pipeline wax remediation oilfield chemistry acid upstream oil & gas wax inhibition hydrate remediation best result asphaltene inhibition scale remediation sulphate...

... resulting in poor reservoir sweep efficiency and low oil recoveries. Mobility control foam can improve CO 2 EOR and CO 2 storage potential by mitigating unfavorable CO 2 properties and reducing the impact of reservoir heterogeneity. CO 2 foam injection involves injecting a foaming agent (surfactant...

...OTC-30601-MS Potential Oil Recovery Enhancement by a Polymeric Nanogel Combined with Surfactant for Sandstone Reservoirs Mustafa Mohammed Almahfood, Saudi Aramco Missouri University of Science and Technology; Baojun Bai, Missouri University of Science and Technology Copyright 2020, Offshore...

... million gridblocks with sufficiently small gridblock sizes to ensure physical accuracy. Four case studies of polymer flooding and surfactant-polymer flooding are presented. The grid sizes range from 800,000 to 3.7 million gridblocks. The incremental enhanced oil recovery is illustrated by comparison...

... Abstract A new structure-property model was developed to predict the aqueous stability limit of chemical EOR formulations from the surfactant and co-solvent structures. The coacervation of aqueous solutions is modeled in a way that is similar to that of phase transitions for microemulsions...

... are surfactants, with one or multiple long hydrophobic tails and a charged hydrophilic head. This class of chemistry is often not easily degraded in the environment and can, therefore, be eliminated from consideration for application in environmentally sensitive regions. This paper presents the development...

...Abstract Abstract Surfactant Chemical EOR is a proven technology to increase oil recovery with several successful field trials. Offshore trials are less frequent due to the complexity of operations and also because of the limited availability of suitable chemicals adapted to sea water...

... that miscible gas injection (produced gases, CO 2 , etc.) is the most promising method among the EOR techniques (miscible gas, water flooding, surfactant, chemical and polymer). Experimental studies showed that CO 2 injection had the highest potential of improved recovery in unconventionals followed...

.... , Hoogland H. , Henson M. A. Predicting the combined effects of oil and surfactant concentrationson the drop size distributions of homogenized emulsions . Colloids and Surfaces A. 467 ( 2015 ) 18 – 30 Mitre , J.F. , Lage , P.L.C. , Souza , M.A. , Silva , E. , Barca...

... been used to mitigate the problem of condensate and liquid blockage (banking) in gas reservoirs. These methods include injection of low flash point solvents, wettability alteration surfactants, gas cycling and hydraulic fracturing. However, none of these offer a comprehensive solution to the problem...

... Abstract Alcohol ethoxylate-based nanosurfactant was experimentally assessed to be used in HCl acid-based stimulation recipes. The surface tension of the surfactant with different stimulation additives was compared with commonly-used linear and branched alcohol ethoxylate-based surfactants...

... inhibition microemulsion treatment oilfield chemistry production chemistry field application separation remediation of hydrates microemulsion formulation scale remediation surfactant application scale inhibition hydrate remediation wax remediation wettability upstream oil & gas flow...

... cementing. Enhancements to the casing/cement bond is achieved by use of surfactants, expansion agents, and other chemicals added to the cement slurry and/or spacer. Modification to completion practices is sometimes practiced to prevent bond disturbance. Modifications to the mechanical properties...

... rates. Severe slugging can cause huge pressure fluctuations and may result in decreased recovery and separator flooding. This study is an experimental and theoretical effort to analyze how the application of surfactants can suppress or eliminate severe slugging. The experimental study is performed...

... ( 4 ): 354 – 359 http://dx.doi.org/10.1016/j.ngib.2015.09.009 , OTC-27902-MS Use of Surfactant in Cement Slurry to Mitigate Incompatibility with Synthetic-Based Drilling Fluids R. Pereira, J. Cardozo, M. Bogaerts, J. McNulty, J. Lehr, and L. Santos, Schlumberger Copyright 2017, Offshore...

... of the reservoir connate brine. These physico-chemical conditions impose severe limitations to adequate phase behavior for most commercial surfactants. The purpose of the research described herein is to analyze surfactant phase behavior for scenarios with seawater as the main carrying fluid for surfactant systems...