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Fly ash Class C based geopolymer for oil well cementing

Aug 01, 2019 For many years Portland cement has been used in oil well cementing. Even though Portland cement has been used for many years, it has several drawbacks, including operational failures and severe environmental impacts. Fly ash based geopolymer cement has been recently investigated as a low-cost, environmentally friendly alternative to Portland

Fly ash Class C based geopolymer for oil well cementing

However, applications of geopolymer cement to oil and gas industry for cementing job are not well recorded. Fly ash based geopolymer cement with different percentages of slag from 0% to 10% were

Fly ash Class C based geopolymer for oil well cementing

Fly ash based geopolymer cement has been recently investigated as a low-cost, environmentally friendly alternative to Portland cement. This research develops a novel formulation of Class C fly ash based geopolymer and investigates its applicability as an alternative to Portland cement in hydrocarbon well cementing.

Formulation of Geopolymer Cement using Class F Fly Ash for

cement in oil well cementing applications at high pressure and temperature conditions. the alumina and silica atoms. Keywords: fly ash, geopolymer cement, oilwell cement, thickening time, fluid loss, compressive strength INTRODUCTION The primary objective of oil well cementing is to prevent fluid

fly ash Schlumberger Oilfield Glossary

The noncombustible residue from the burning of pulverized coal.Fly ash is pozzolanic and is frequently used to replace a portion of the cement and reduce its density.

Petroleum and Coal

tons of coal fly ash (CFA) is produced annually in South Africa. In this work, bene-ficiation of South African CFA in Oil Well Cementing (OWC) operation is reported. Silica (SiO 2) was extracted from the CFA and used to synthesize sodium silicate (CFA-Na 2 SiO 3), typical OWC slurry extender. Physicochemical properties of the CFA-Na 2 SiO 3

US5383521A Fly ash cementing compositions and methods

The present invention provides fly ash cementing compositions and methods which are useful in any cementing application, and are particularly suitable for cementing in subterranean zones penetrated by well bores. The cementing compositions can include a portion of the drilling fluid used to drill a well bore as a component thereof. Also, drilling fluid can be disposed of by combining it with

(PDF) A STUDY ON THE THICKENING TIME OF CLASS F FLY ASH

With the increasing awareness towards global warming, there is a dire need to develop a green cement to replace the conventional Ordinary Portland Cement (OPC). Geopolymer cement has been identified as a potential replacement for the OPC and its

The Flow Characteristics of Fly Ash Slurry for Plugging

The fly ash has been used as a mineral admixture in Portland cement concrete in the oil field since 1950. The fly ash is known to have very similar properties to cement. Class C fly ash, especially, has high lime content, which is a cementitious component. This class C fly ash can replace cement that is primarily used in plugging abandoned

The potential of Lawin Tuff for Generating a Portland fly

substitute for Portland Fly ash cement in oil well cementing process. For the current time, there is no economic value for using tuff in Lawin. The study of the rock (tuff) characteristic and the new cement formed is important for both geological field and oil and gas cementing industry. The current Portland

·Fly Ash-Cement Mixtures for Solidification and

cement, fly ash, and other additives, oil and gas well sludges can be solidified and stabilized for disposal by acceptable methods. This paper describes a study conducted to evaluate formulation mixtures using portland cement, fly ash, lime, and other materials for solidi­ fying and detoxifying the oil and gas well sludges encountered in

THE SUITABILITY OF FLY ASH BASED GEOPOLYMER CEMENT

cement and Fly Ash Geopolymer (FAGP) cement pertaining to the identified facto rs were made. In addition, a thorough analysis on the factors affecting the properties of geopolymer in reg ards to its application in oil well cementing was performed.

US5383521A Fly ash cementing compositions and methods

The present invention provides fly ash cementing compositions and methods which are useful in any cementing application, and are particularly suitable for cementing in subterranean zones penetrated by well bores. The cementing compositions can include a portion of the drilling fluid used to drill a well bore as a component thereof. Also, drilling fluid can be disposed of by combining it with

Fly ash-based geopolymer cement as alternative to ordinary

Jun 09, 2016 It is well known that cement has a tendency to degrade in corrosive environment and high temperatures. Due to chemical attacks and formation movements and the consequent mechanical failure that was experienced in many cases many oil and gas companies decided to search for potential material for oil well cementing operations [2]–[5] .

fly ash Schlumberger Oilfield Glossary

The noncombustible residue from the burning of pulverized coal.Fly ash is pozzolanic and is frequently used to replace a portion of the cement and reduce its density.

PAPER OPEN ACCESS Smart Cement Modified with Nano Fly

Smart Cement Modified with Nano Fly Ash and Micro Fiber for Oil Well Applications. A A Abdul-hamead, F M Othman, D M Abdullah University of Technology, Materials Engineering Department, Iraq, Baghdad Corresponding author’s e-mail address: [email protected] Abstract. Adequate slurry design is critical to the success of a cementing work.

US3669701A Lightweight cements for oil wells Google

disclosed herein is a lighweight cement which utilizes small cenospheres primarly consisting of silica-alumina. this material known as float ash is essentially that portion of fly ash that floats on water and has specific gravity around 0.7. the lightness of float ash and its inherent compressive strength make it desirable as an ingredient for decreasing the weight and improving the strength

Fly ash cementing compositions and methods Halliburton

A cementing composition of this invention containing drilling fluid and used to perform well cementing operations or to solidify drilling fluid as a part of its disposal is basically comprised of the fine particle size ASTM Class C or equivalent fly ash described above, a dispersing agent, preferably the condensation polymer product of acetone

fly ash Schlumberger Oilfield Glossary

The noncombustible residue from the burning of pulverized coal.Fly ash is pozzolanic and is frequently used to replace a portion of the cement and reduce its density.

THE SUITABILITY OF FLY ASH BASED GEOPOLYMER CEMENT

cement and Fly Ash Geopolymer (FAGP) cement pertaining to the identified facto rs were made. In addition, a thorough analysis on the factors affecting the properties of geopolymer in reg ards to its application in oil well cementing was performed.

·Fly Ash-Cement Mixtures for Solidification and

cement, fly ash, and other additives, oil and gas well sludges can be solidified and stabilized for disposal by acceptable methods. This paper describes a study conducted to evaluate formulation mixtures using portland cement, fly ash, lime, and other materials for solidi­ fying and detoxifying the oil and gas well sludges encountered in

PAPER OPEN ACCESS Smart Cement Modified with Nano Fly

Smart Cement Modified with Nano Fly Ash and Micro Fiber for Oil Well Applications. A A Abdul-hamead, F M Othman, D M Abdullah University of Technology, Materials Engineering Department, Iraq, Baghdad Corresponding author’s e-mail address: [email protected] Abstract. Adequate slurry design is critical to the success of a cementing work.

Fly ash-based geopolymer cement as alternative to ordinary

Jun 09, 2016 It is well known that cement has a tendency to degrade in corrosive environment and high temperatures. Due to chemical attacks and formation movements and the consequent mechanical failure that was experienced in many cases many oil and gas companies decided to search for potential material for oil well cementing operations [2]–[5] .

Fly ash cementing compositions and methods Halliburton

A cementing composition of this invention containing drilling fluid and used to perform well cementing operations or to solidify drilling fluid as a part of its disposal is basically comprised of the fine particle size ASTM Class C or equivalent fly ash described above, a dispersing agent, preferably the condensation polymer product of acetone

Fly Ash Materials That Perform: Building Materials Suppliers

A recycled material that enhances your mix. Fly ash is a fine powder that comes from coal combustion, typically resulting from power generation, and one of the construction industry's most commonly-used pozzolans. Pozzolans are siliceous or siliceous/aluminous materials which can form cementitious compounds when mixed with lime and water.

General 2 — Ash Grove

Formerly landfilled, creating a high-value use for this product is part of Ash Grove’s overall commitment to sustainable development. Durapoz® F. Duracem® F is an ASTM C595 blended cement that also meets ASTM C1157 performance specifications. It is made with interground Class F fly ash. Note, the fly ash addition rate varies.

CONCRETE Optimizing the Use of Fly Ash in Concrete

the fly ash as the sole cementing material (Cross 2005). In addition to providing an indication of the mineralogy and reactivity of the fly ash, the calcium content is also useful in predicting how effective the fly ash will be in terms of reducing the heat of hydration (Thomas 1995), controlling expansion due to alkali-silica reaction (Shehata

Effect of Fly Ash on Compressive Strength of Portland

non-conventional building material (fly ash) for development of new materials and technologies. It is aimed at materials which can fulfil the expectations of the construction industry in different areas. In this study, cement has been replaced by fly ash accordingly in the range of 0% (without fly ash

Uniaxial compressive strength of geopolymer cement for oil

Ensuring oil-well-integrity is one of the challenging tasks when cementing is designed. It has been well established that cement tends to degrade when exposed to a corrosive environment and at elevated temperatures. This paper presents the results of the uniaxial compressive strength of the qualified mixes of geopolymer cement containing fly ash as the precursor.

FLY ASH-CEMENT MIXTURES FOR SOLIDIFICATION AND

Laboratory studies were conducted to determine the feasibility of solidifying and stabilizing oil and gas well sludges using portland cement, fly ash, lime, and sodium silicate mixtures. Oil well sludge samples from a site in Alberta, Canada, were mixed with various proportions and different combinations of the solidifying agents.

Impact of wet supercritical CO 2 injection on fly ash

May 22, 2019 An alternative cement system created through geopolymerization of fly ash offers favorable properties such as able to resist acidic fluids and possess high compressive strength. However, the application of fly ash geopolymer as wellbore cement under carbon dioxide (CO2) environment at elevated temperature is not well recorded in the literature.

Advances in the Possibility of Utilising Construction

The palm oil fly ash used improved the blended cement compressive strength with the highest strength achieved when 15% of the ash was added to the neat cement. According to them, the strength would be decreased if 20% or more fly ash was added to the cement and about 48% of the cement material cost would be saved if the blended cement was used