Study on the optimization of the performance of preformed particle gel (PPG) on the isolation of high permeable zone

Mehrabianfar, Parviz; Malmir, Pourya; Soulgani, Bahram Soltani; Hashemi, Abdolnabi

doi:10.1016/j.petrol.2020.107530

Cited by 27 publications

(10 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several studies on application of various nanoparticles combined with polymers and surfactnats as chemical additivies for EOR processes are reported in the literature. Researchers have investigated the the feasibility of EOR by using core-shell polymeric nanoparticles suspension in a low permeability heterogeneous oil reservoir [ 43 ]; conducted some high temperature (120 °C) corefloods to study the feasibility of using cellulose nanocrystals as additives to enhance the oil recovery of EOR processes [ 44 ]; used coreflooding and microfluidics to assesse the possibility of application of nanocellulose as an additive to enhance the efficiency of waterflooding [ 45 ]; conducted secondary and tertiary corefloods with polymer-coated silica nanoparticles on neutral-wet Berea sandstine samples saturated with a North Sea crude oil under ambient conditions and evaluated the factors affecting oil recovery [ 46 ]; reported experimental and filed scale research on design and application of nanofluid for EOR purposes aiming at understandibg the interactions between surfactant-nanoparticle and brine [ 47 ]; studied silica nanoparticles’ stability under reservoir conditions for EOR purposes [ 48 ]; investigated the relations between pore size distribution and oil-water relative permeability on effectivenese of anionic surfactant and silica nanoparticles in EOR processes in carbonate petroleum reservoirs. Researchers have recently investigated the possibility of coupling conventional nanofluid flooding with electromagnetic waves of varying frequencies to boost the oil mobility in the porous media and alter the oil-nanoparticle interface to facilitate detachment of oil droplets from the rock surface and to encourage their flow into the production well.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Assessment of a CeO2@Nanoclay Nanocomposite for Enhanced Oil Recovery

et al. 2020

View full text Add to dashboard Cite

In this paper, synthesis and characterization of a novel CeO2/nanoclay nanocomposite (NC) and its effects on IFT reduction and wettability alteration is reported in the literature for the first time. The NC was characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), energy-dispersive X-ray spectroscopy (EDS), and EDS MAP. The surface morphology, crystalline phases, and functional groups of the novel NC were investigated. Nanofluids with different concentrations of 100, 250, 500, 1000, 1500, and 2000 ppm were prepared and used as dispersants in porous media. The stability, pH, conductivity, IFT, and wettability alternation characteristics of the prepared nanofluids were examined to find out the optimum concentration for the selected carbonate and sandstone reservoir rocks. Conductivity and zeta potential measurements showed that a nanofluid with concentration of 500 ppm can reduce the IFT from 35 mN/m to 17 mN/m (48.5% reduction) and alter the contact angle of the tested carbonate and sandstone reservoir rock samples from 139° to 53° (38% improvement in wettability alteration) and 123° to 90° (27% improvement in wettability alteration), respectively. A cubic fluorite structure was identified for CeO2 using the standard XRD data. FESEM revealed that the surface morphology of the NC has a layer sheet morphology of CeO2/SiO2 nanocomposite and the particle sizes are approximately 20 to 26 nm. TGA analysis results shows that the novel NC has a high stability at 90 °C which is a typical upper bound temperature in petroleum reservoirs. Zeta potential peaks at concentration of 500 ppm which is a sign of stabilty of the nanofluid. The results of this study can be used in design of optimum yet effective EOR schemes for both carbobate and sandstone petroleum reservoirs.

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Assessment of a CeO2@Nanoclay Nanocomposite for Enhanced Oil Recovery

et al. 2020

View full text Add to dashboard Cite

show abstract

“…After etching, another glass of the same size was placed on the etched one and left in a furnace. The glasses were heated to 700 °C over 12 h and then gradually cooled to stick together and seal the pathways within the micromodel …”

Section: Methodsmentioning

confidence: 99%

“…The glasses were heated to 700 °C over 12 h and then gradually cooled to stick together and seal the pathways within the micromodel. 53 2.3. Microfluidic Setup.…”

Section: Methodsmentioning

confidence: 99%

Direct Insight into the Cause and Time Evaluation of Spontaneous Emulsification of Water in Crude Oil during Low Salinity Waterflooding Using Microfluidic Model

Beyranvand

Rostami

2022

Energy Fuels

View full text Add to dashboard Cite

In prior research, the formation of emulsions has been proposed as an effective mechanism to enhance the recovery during the injection of low salinity water (LSW) from different points of view, such as improving the mobility ratio, changing the wettability, and swelling the oil layer adhered to the rock surface. The spontaneous emulsification process and its causes are still an unclear area of LSW studies. To study the formation of the emulsion as an active mechanism in the LSW injection, it is necessary to pay attention to the time required to form these emulsions spontaneously and places prone to their formation. In addition to the visual investigation of the spontaneous formation of emulsions, the current study also aimed at evaluating the time required for their spontaneous formation and identifying the main drive force to form these microsized dispersions. To this end, water-in-oil emulsions were prepared naturally without the use of surfactants to simulate spontaneous emulsification. Also, stability analysis by droplet size measurement was used as an observational criterion to evaluate different brines’ tendencies to form expected in situ emulsions in a porous medium. However, for visual investigation of emulsification in porous media, glass micromodels were used. The stability analysis results showed that the increase in the emulsions’ instability occurred with the increase of the ionic strength of the aqueous phase. In the micromodel experiments, the spontaneous emulsification was confirmed when low salinity water was injected. Moreover, the micromodel experiments revealed that the emulsions did not start to form immediately but formed within a week and reached a maximum approximately after 10 days. It can be concluded that the oil layer can act as a semipermeable layer and water inverse micelles enter the oil layer by diffusion. The rate of emulsion formation is controlled by diffusion induced by the osmosis imbalance condition in LSW injection.

show abstract

“…The influence of a high-salinity environment on the performance of a polymer gel is mainly evident in the gel structure. Under the influence of cations, the electric potential of the polymer surface decreases, the molecular structure curls and shrinks and the swelling performance of the gel is greatly reduced [ 112 ]. The crosslinker chosen for in situ crosslinked gels must be capable of stable crosslinked gelling in high-salt-content environments and minimizing the influence of the environment on the gelation strength.…”

Section: Prospects Of Polymer Gels For Oil–gas Drilling and Productionmentioning

confidence: 99%

Polymer Gels Used in Oil–Gas Drilling and Production Engineering

Han

Sun

et al. 2022

Gels

View full text Add to dashboard Cite

Polymer gels are widely used in oil–gas drilling and production engineering for the purposes of conformance control, water shutoff, fracturing, lost circulation control, etc. Here, the progress in research on three kinds of polymer gels, including the in situ crosslinked polymer gel, the pre-crosslinked polymer gel and the physically crosslinked polymer gel, are systematically reviewed in terms of the gel compositions, crosslinking principles and properties. Moreover, the advantages and disadvantages of the three kinds of polymer gels are also comparatively discussed. The types, characteristics and action mechanisms of the polymer gels used in oil-gas drilling and production engineering are systematically analyzed. Depending on the crosslinking mechanism, in situ crosslinked polymer gels can be divided into free-radical-based monomer crosslinked gels, ionic-bond-based metal cross-linked gels and covalent-bond-based organic crosslinked gels. Surface crosslinked polymer gels are divided into two types based on their size and gel particle preparation method, including pre-crosslinked gel particles and polymer gel microspheres. Physically crosslinked polymer gels are mainly divided into hydrogen-bonded gels, hydrophobic association gels and electrostatic interaction gels depending on the application conditions of the oil–gas drilling and production engineering processes. In the field of oil–gas drilling engineering, the polymer gels are mainly used as drilling fluids, plugging agents and lost circulation materials, and polymer gels are an important material that are utilized for profile control, water shutoff, chemical flooding and fracturing. Finally, the research potential of polymer gels in oil–gas drilling and production engineering is proposed. The temperature resistance, salinity resistance, gelation strength and environmental friendliness of polymer gels should be further improved in order to meet the future technical requirements of oil–gas drilling and production.

show abstract

Study on the optimization of the performance of preformed particle gel (PPG) on the isolation of high permeable zone

Cited by 27 publications

References 20 publications

Synthesis, Characterization, and Assessment of a CeO2@Nanoclay Nanocomposite for Enhanced Oil Recovery

Synthesis, Characterization, and Assessment of a CeO2@Nanoclay Nanocomposite for Enhanced Oil Recovery

Direct Insight into the Cause and Time Evaluation of Spontaneous Emulsification of Water in Crude Oil during Low Salinity Waterflooding Using Microfluidic Model

Polymer Gels Used in Oil–Gas Drilling and Production Engineering

Contact Info

Product

Resources

About