In-Depth Fluid Diversion by Pre-Gelled Particles. Laboratory Study and Pilot Testing.

Coste, Jean-Paul; Liu, Y.; Bai, Baojun; LI, Y.; Shen, Ping Ping; Wang, Z.; Zhu, Guo Cheng

doi:10.2523/59362-ms

Cited by 37 publications

(55 citation statements)

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“…Polymer flooding (Needham and Doe, 1987;Sheng, 2011;Sorbie, 1991), polymer in-situ gel flooding (Abdo et al, 1984;Avery et al, 1986;Kabir, 2001;Kim May, 1995;Norman et al, 2006;Seright and Liang, 1994;Seright et al, 2003;Sydansk and Southwell, 2000), and polymer microgel flooding (Al- Anazi and Sharma, 2002;Chauveteau et al, 2001;Coste et al, 2000;Cozic et al, 2009;Frampton et al, 2004;Mack and Smith, 1994;Spildo et al, 2009;Zaitoun et al, 2007) are three distinct improved oil recovery techniques, and it is important to be able to differentiate them from each other. Before proceeding with this distinction, a few key terms need be briefly defined.…”

Section: Polymer Microgel Motivation Over Polymer Flooding or Bulk Gementioning

confidence: 98%

“…CDGs are formed by mixing polymer and crosslinker in low concentrations, so that a bulk gel cannot form (Coste et al, 2000;Fielding et al, 1994;Mack and Smith, 1994;Sheng, 2011). While bulk gels consist of continuous intermolecular gel networks, CDGs are micron-scale soft gel globules that came about from primarily intramolecular association (Diaz et al, 2008;Mack and Smith, 1994).…”

Section: Colloidal Dispersion Gels (Cdgs)mentioning

confidence: 99%

“…Each of the different microgel types has different characteristics and is triggered by different controls (pressure differential, temperature, pH), but there are a couple of common mechanism features: (i) High resistance factor (RF) and permeability reduction factor (RRF), when triggered by a control variable, enabling the microgels to act as conformance control agents (in a more effective manner than uncrosslinked polymer, and deeper in formations than polymer/bulk gels) (Sheng, 2011); and (ii) Viscoelastic behavior that can potentially reduce oil saturation below the waterflood residual oil saturation (Coste et al, 2000;Sheng, 2011;Urbissinova et al, 2010).…”

Section: Polymer Microgel Typesmentioning

confidence: 99%

“…High temperature fields. Coste et al (2000) specified an upper limit of 90 1C (194˚F). Successful applications at 94.4 1C were reported (Fielding et al, 1994;Mack and Smith, 1994).…”

Section: Colloidal Dispersion Gels (Cdgs)mentioning

confidence: 99%

“…Fields with high water salinity. Coste et al (2000) specified an upper salinity limit of 5000 mg/L. Mack and Smith (1994) specified an upper limit of 30,000 ppm total dissolved solids (TDS).…”

Section: Colloidal Dispersion Gels (Cdgs)mentioning

confidence: 99%

See 4 more Smart Citations

A critical review on use of polymer microgels for conformance control purposes

Abdulbaki

Huh

Sepehrnoori

et al. 2014

Journal of Petroleum Science and Engineering

145

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Section: Polymer Microgel Motivation Over Polymer Flooding or Bulk Gementioning

confidence: 98%

Section: Colloidal Dispersion Gels (Cdgs)mentioning

confidence: 99%

Section: Polymer Microgel Typesmentioning

confidence: 99%

“…High temperature fields. Coste et al (2000) specified an upper limit of 90 1C (194˚F). Successful applications at 94.4 1C were reported (Fielding et al, 1994;Mack and Smith, 1994).…”

Section: Colloidal Dispersion Gels (Cdgs)mentioning

confidence: 99%

Section: Colloidal Dispersion Gels (Cdgs)mentioning

confidence: 99%

See 3 more Smart Citations

A critical review on use of polymer microgels for conformance control purposes

Abdulbaki

Huh

Sepehrnoori

et al. 2014

Journal of Petroleum Science and Engineering

145

View full text Add to dashboard Cite

Improvement in thermo‐chemical stability of nanocomposite preformed particle gels for conformance control in harsh oil reservoir conditions

Saghafi¹,

Naderifar

Gerami

et al. 2016

Can J Chem Eng

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Gel treatment is one of the most promising technologies to improve conformance control in heterogeneous reservoirs. In this paper, new enhanced preformed particle gels (PPGs) are introduced for conformance control in high‐temperature and high‐salinity oil reservoirs. The thermo‐chemical stability of this product is due to the incorporation of a new monomer, N,N‐dimethyl acrylamide (DA), to the structure of the last well‐known nano‐composite PPGs. Four species, N,N‐dimethyl acrylamide, 2‐acrylamido‐2‐methylpropane sulphonic sodium salt (AMPSNa), acrylamide (AM), and N‐vinylpyrrolidone (NVP) monomers, were used to synthesize these PPGs via free radical cross‐linking polymerization at room temperature using N,N‐methylenebis (acrylamide) as a cross‐linker. The mechanical properties of these new classes of PPGs were enhanced by adding the nano‐clay montmorillonite Na+. A temperature stability agent was also used to make these special PPGs compatible with high temperature and salinity reservoir conditions. A systematic study on PPGs preparation was conducted to improve PPGs stability for harsh reservoir conditions that exist in Persian Gulf oil reservoirs (a temperature of 145 °C and a water total dissolved solid of 225 000 mg/L). PPGs prepared with 0.30 g/g (30 wt%) of a 2:1:1:2 molar mass ratio of AM, DA, NVP, and AMPSNa could be completely stable for the mentioned conditions. Rheological behaviours of these PPGs were investigated and a mathematical model for prediction of storage modulus up to onset of elastic to viscous phase was presented. The results of this study reveal useful insights about the selection of appropriate material for successful conformance control in the heterogeneous reservoirs.

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In situ organically cross‐linked polymer gel for high‐temperature reservoir conformance control: A review

Amir

Said

Jan

2018

Polymers for Advanced Techs

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Polymer gel has been established as water‐blocking agents in oil recovery application. In this practice, a mixture known as gelant is injected into target area and set into a semisolid gel after a certain adequate time. Besides profile modification and water shutoff, the role of the polymer gel in conformance control is to block high permeability regions, before diverting injected water from high permeability to low permeability zones of the reservoir. It is to boost the oil displacement and sweep efficiency. This is the key to improve oil recovery in the heterogeneous oil reservoirs. However, very limited gels are applicable for harsh conditions, especially in high‐temperature reservoirs. Organically cross‐linked polymer is 1 of the materials for conformance control at high‐temperature reservoirs. Many experimental works and field applications have exhibited the potential of this technology. This paper presents a concise review on this polymer gel for conformance control at high‐temperature wells. Firstly, in situ organically cross‐linked polymer gel has been introduced, and the reason of the use over other types of polymer gels is summarized. The early studies of organically cross‐linked gel systems are also discussed, followed by the chemistry and the gelation mechanisms. An extensive review on factors that affect gelation kinetics and field applications is also discussed in some detail.

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In-Depth Fluid Diversion by Pre-Gelled Particles. Laboratory Study and Pilot Testing.

Cited by 37 publications

References 0 publications

A critical review on use of polymer microgels for conformance control purposes

A critical review on use of polymer microgels for conformance control purposes

Improvement in thermo‐chemical stability of nanocomposite preformed particle gels for conformance control in harsh oil reservoir conditions

In situ organically cross‐linked polymer gel for high‐temperature reservoir conformance control: A review

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