Study and Use of Geopolymer Mixtures for Oil and Gas Well Cementing Applications

Salehi, Saeed; Khattak, Mohammad Jamal; Ali, Nasir; Ezeakacha, Chinedum Peter; Saleh, Fatemeh K.

doi:10.1115/1.4037713

Cited by 52 publications

(24 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The main difference from regular concretes containing Portland cements and GC is that the GC does not form calcium silicate hydrates for strength but instead make use of poly-condensation of silica, alumina, and high alkali contents to achieve adequate structural strength [7]. The properties of the geopolymer relies on many factors such as the chemical composition of the binders, the type of alkali activators, the concentration of the activator, curing condition, and water content [33].…”

Section: Literature Reviewmentioning

confidence: 99%

“…The fly ash geopolymer has proved to have better mechanical properties and durability when compared to OPC [7,34]. Fly ash-based geopolymer mixes performed significantly better at higher temperatures [33,35,36]. Moreover, the longer setting time and lower strength under ambient conditions make plain fly ash-based geopolymers impracticable for field use [37].…”

Section: Literature Reviewmentioning

confidence: 99%

See 1 more Smart Citation

Development of Heavyweight Self-Compacting Concrete and Ambient-Cured Heavyweight Geopolymer Concrete Using Magnetite Aggregates

et al. 2019

View full text Add to dashboard Cite

Heavyweight self-compacting concrete (HWSCC) and heavyweight geopolymer concrete (HWGC) are new types of concrete that integrate the advantages of heavyweight concrete (HWC) with self-compacting concrete (SCC) and geopolymer concrete (GC), respectively. The replacement of natural coarse aggregates with magnetite aggregates in control SCC and control GC at volume ratios of 50%, 75%, and 100% was considered in this study to obtain heavyweight concrete classifications, according to British standards, which provide proper protection from sources that emit harmful radiations in medical and nuclear industries and may also be used in many offshore structures. The main aim of this study is to examine the fresh and mechanical properties of both types of mixes. The experimental program investigates the fresh properties of HWSCC and HWGC through the slump flow test. However, J-ring tests were only conducted for HWSCC mixes to ensure the flow requirements in order to achieve self-compacting properties. Moreover, the mechanical properties of both type of mixes were investigated after 7 and 28 days curing at an ambient temperature. The standard 100 × 200 mm cylinders were subjected to compressive and tensile tests. Furthermore, the flexural strength were examined by testing 450 × 100 × 100 mm prisms under four-point loading. The flexural load-displacement relationship for all mixes were also investigated. The results indicated that the maximum compressive strength of 53.54 MPa was achieved by using the control SCC mix after 28 days. However, in HWGC mixes, the maximum compressive strength of 31.31 MPa was achieved by 25% magnetite replacement samples. The overall result shows the strength of HWSCC decreases by increasing magnetite aggregate proportions, while, in HWGC mixes, the compressive strength increased with 50% magnetite replacement followed by a decrease in strength by 75% and 100% magnetite replacements. The maximum densities of 2901 and 2896 kg/m3 were obtained by 100% magnetite replacements in HWSCC and HWGC, respectively.

show abstract

Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Development of Heavyweight Self-Compacting Concrete and Ambient-Cured Heavyweight Geopolymer Concrete Using Magnetite Aggregates

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Geopolymers are inorganic materials that are produced by mixing a reactive aluminosilicate species with a liquid hardener and make a slurry with cementitious properties [17,25]. In this class of material, the geopolymerization reaction occurs instead of hydration and forms long-chain molecules in tetrahedral orientation, including aluminate and silicate.…”

Section: Cementitious Materialsmentioning

confidence: 99%

Experimental Study of Hydraulic Sealability and Shear Bond Strength of Cementitious Barrier Materials

Kamali

Khalifeh

Eid

et al. 2021

Journal of Energy Resources Technology

View full text Add to dashboard Cite

In this experimental study, two different cementitious materials including (i) a class of expansive cement currently used for plug and abandonment (P&A) operations, and (ii) a non-cement-based naturally occurring rock, known as geopolymer are selected to examine the hydraulic bond strength and shear bond strength. Clean machined steel and rusty corroded steel were selected to represent the casing. The test samples were cured at 90 °C considered as bottom-hole static temperature (BHST) and under elevated pressure of 17.2 MPa for one week. The hydraulic sealability of the barrier materials tested up to 3.4 MPa of differential pressure. The results indicated that additives used in slurry preparation impact the hydraulic sealability of the material. Additionally, the rusty corroded streel provided a better hydraulic sealability comparing to the clean machined steel for the same cementitious material. The shear bond strength test was performed by running the push-out test. According to the present test observations, no correlation was found between the shear bond and hydraulic bond strength of different barrier materials. The geopolymer showed the lowest shear bond strength, while it provided the highest hydraulic sealability.

show abstract

“…By-product materials such as fly ash and slag are main sources of alumino-silicate materials. The properties of alkali-activated by-product rely on many factors such as the chemical composition of the binders, the type of alkali activators, the concentration of the activator, the curing condition, and the water content [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Properties of Ambient-Cured Normal and Heavyweight Geopolymer Concrete Exposed to High Temperatures

Aslani

Asif

2019

Materials

View full text Add to dashboard Cite

Ambient-cured heavyweight geopolymer concrete (HWGC) is a new type of concrete that combines the benefits of both heavyweight concrete (HWC) and geopolymer concrete (GC). HWGC provides proper protection from the sources that emit harmful radiations in medical and nuclear industries. Furthermore, HWGC may also be used in offshore structures for pipeline ballasting and similar underwater structures. In this study, heavyweight aggregates (magnetite) have been used and replaced by normal-weight coarse aggregates in GC at volume ratios of 50, 75, and 100% to attain heavyweight classification according to British standards. This study investigates the impacts of high temperatures on standard ambient-cured geopolymer concrete and ambient-cured HWGC through its residual properties regarding compressive and tensile strengths, mass loss, spalling intensity, and flexural strength. The residual properties were examined by heating 100 × 200 mm cylinder specimens to 100, 300, 600, and 900 °C. The results indicated that the maximum compressive strengths of 40.1 and 39.0 MPa were achieved by HWGC at 300 and 100 °C, respectively. The overall result shows that the strength of HWGC increases by increasing magnetite aggregate proportion, while the mass loss, intensity of spalling, and loss of strengths is proportional to temperature after a certain point. Minor spalling with holes and cracking was observed only at 900 °C in HWGC.

show abstract

Study and Use of Geopolymer Mixtures for Oil and Gas Well Cementing Applications

Cited by 52 publications

References 37 publications

Development of Heavyweight Self-Compacting Concrete and Ambient-Cured Heavyweight Geopolymer Concrete Using Magnetite Aggregates

Development of Heavyweight Self-Compacting Concrete and Ambient-Cured Heavyweight Geopolymer Concrete Using Magnetite Aggregates

Experimental Study of Hydraulic Sealability and Shear Bond Strength of Cementitious Barrier Materials

Properties of Ambient-Cured Normal and Heavyweight Geopolymer Concrete Exposed to High Temperatures

Contact Info

Product

Resources

About