Utilization of Fly Ash in Oil and Gas Well Cementing …
Densities of cement slurries can be lowered by adding pozzolanic lightweight additives such as fly ash. Fly ashes have found utility in numerous oil and gas well cementing applications, namely: 1 ...
The use of South African coal fly ash (CFA) as an additive to oil well …
THE USE OF SOUTH AFRICAN COAL FLY ASH (CFA) AS AN ADDITIVE TO OIL WELL CEMENT DURING CEMENTING OPERATION By TENDAI KADUKU (911261) A research report submitted to the Faculty of Engineering and the Built Environment, University of the Witwatersrand, in partial fulfilment of the requirements for the degree of Master of …
Study and Use of Geopolymer Mixtures for Oil and Gas Well Cementing …
The study here presents laboratory testing results of Class F fly ash geopolymer for oil well cementing applications. The challenge reported in literature for the short thickening time of ...
Potential utilization of class C fly ash-based geopolymer in oil well …
For class G oil well cement (OWC) and class C fly ash-based geopolymer, the comparative experiments under simulated oil well environment were performed. The early age properties of geopolymer were measured. Considering the higher downhole temperature, the high temperature resistance of geopolymer at 60 ℃ and 180 ℃ was …
A STUDY ON THE THICKENING TIME OF CLASS F FLY …
Keywords: fly ash, geopolymer cement, oil well cement, thickening time. 1. INTRODUCTION Oil well cementing process involves displacing cement slurry down the casing to a predetermined depth in the well. The primary objective of oil well cementing is to provide zonal isolation by restricting fluid movement between the formations.
Development of New Green Cement for Oil Wells
For many years, Ordinary Portland Cement (OPC) is used in oil well cementing operation. But the OPC gets degraded in the acidic environment because of having poor mechanical characteristics. ... 2014., Potential utilization of class C fly ash-based geopolymer in oil well. DOI: 10.1016/j.cemconcomp.2014.06.014. Google Scholar [7] Cockrell C.F ...
THE SUITABILITY OF FLY ASH BASED GEOPOLYMER …
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.
[PDF] Zeolite and fly ash in the composition of oil well cement
@article{Ledesma2020ZeoliteAF, title={Zeolite and fly ash in the composition of oil well cement: Evaluation of degradation by CO2 under geological storage condition}, author={Roger Braun Ledesma and Nat{'a}lia Feij{'o} Lopes and Katryanne Rohana Georg Bacca and Martimiano K. Moraes and Giovanni dos Santos Batista and Marçal Jose …
Study on Effect of Low Calcium Fly Ash on Geopolymer Cement for Oil …
Abstract. With the increasing awareness of global warming, geopolymer cement has been identified as one of the methods in reducing the emission of CO2 during oil well cementing operation. However, it is important that geopolymer cement can meet the specific requirement of oil well condition in order to be substitute of current …
OneMine | Utilization Of Fly Ash In The Cementing Of Wells
Fly ash as an additive for oil well cement was introduced to the oil industry by the Halliburton Company in 1949. Since its early usage in the Illinois area of the U. S., the total amount of fly ash pumped into wells has exceeded 30 million sacks, The advantages of using fly ash-portland cement mixtures in wells are fundamentally the same as for …
Fly ash Class C based geopolymer for oil well cementing
Related References Khalifeh, M.; Saasen, A.; Vralstad, T.; Hodne, H. 2014: Potential utilization of class C fly ash-based geopolymer in oil well cementing operations Cement and Concrete Composites 53: 10-17
fly ash for oil well cementing – Grinding Mill China
FLY ASH-CEMENT MIXTURES FOR SOLIDIFICATION AND …. Oil and gas well sludges usually consist of drill mud and formation cuttings, as well as various hydrocarbons. They are in a semiliquid state and vary widely in … » More detailed Oil Well Cementing | Roy Research and Technology … a good Oil Well Cement must operate under the … EPA …
Compressive Strength and Hydration Products of Oil …
Table 3 Oil well cement ratio mixed with fly ash (wt.%). Sample Cement to fly ash ratio (%) Water (%)* Dispersant (%)* CF73 70:30 44 0.2 CF55 50:50 44 0.5 CF37 30:70 44 1.0 *wt.% with respect to the weight of cement+fly ash. Table 1 Chemical composition of oil well cement and fly ash (wt.%). Oxides SiO2 CaO Al2O3 Fe2O3 MgO K2O Na2O SO3
Cement
Our oil-well cement is a specially designed variety of hydraulic cement produced with gray Portland clinker. It usually forges slowly and is manageable at high temperatures and pressures. Produced in classes from A to H and J, our oil-well cement is applicable for different depth, chemical aggression, or pressure levels. ... fly ash, silica ...
Fly ash Class C based geopolymer for oil well …
The effect of Portland cement (OPC) addition on the properties of high calcium fly ash geopolymer pastes was investigated in the paper. OPC partially replaced fly ash (FA) at the dosages of 0, 5%, 10%, and 15% …
[PDF] Zeolite and fly ash in the composition of oil well …
@article{Ledesma2020ZeoliteAF, title={Zeolite and fly ash in the composition of oil well cement: Evaluation of degradation by CO2 under geological storage …
Study on Effect of Low Calcium Fly Ash on Geopolymer …
Abstract. With the increasing awareness of global warming, geopolymer cement has been identified as one of the methods in reducing the emission of CO2 …
Microstructure Behavior of Fly Ash-Based Geopolymer Cement …
Results show that fly ash-based geopolymer cement with 1 wt% of Nano-silica additive was the least affected cement samples after acid treatment as compared to a similar weight of Class G OPC. ... Study on effect of low calcium fly ash on geopolymer cement for oil well cementing. In: Paper SPE 176454 Presented at the SPE/IATMI …
Evaluating the Feasibility of Fly Ash-Based Geopolymer …
This is the first assessment of the viability of utilizing Thar power plant fly ash for oil well cementing application. The compressive strength of designed slurry was determined to evaluate the feasibility of geopolymer at various concentrations of alkali activator, curing time and temperature. ...
Highly Reactive Fly Ash Material Improves Economics of …
Abstract. Fly Ash is a light weight residue from coal fired power plants. Blends of Portland cement and Fly Ash are widely used in construction and oilfield …
Utilization of Fly Ash in Oil and Gas Well Cementing …
Densities of cement slurries can be lowered by adding pozzolanic lightweight additives such as fly ash. Fly ashes have found utility in numerous oil and …
Smart Cement Modified with Nano Fly Ash and Micro Fiber for Oil Well …
Smart Cement Modified with Nano Fly Ash and Micro Fiber for Oil Well Applications. A A Abdul-hamead 1, F M Othman 1 and D M Abdullah 1. Published 1 July 2019 • Published under licence by IOP Publishing Ltd
A study on the thickening time of class F fly ash geopolymer cement …
As a result, in a recent study, Kanesan et al. (2018) investigated the TT of Class F fly ash geopolymer cement for oil-well cementing. In the study, Kanesan et al. (2018) formulated fly ash ...
Investigation of Dehydroxylated Sodium Bentonite as a
This pozzolanic property is enhanced upon heat treatment; however, this material has never been explored in oil-well cementing in such form. This study compares the performance of 13-ppg heated (dehydroxylated) sodium bentonite and fly-ash cement systems. The raw (commercial) sodium bentonite was dehydroxylated at 1,526°F for 3 …
Formulation of Geopolymer Cement using Class F Fly Ash for Oil Well
The chemicals used to formulate fly ash based geopolymer cement in the experiments conducted in this research were class F fly ash, sodium silicate (Na 2 SiO 3 ), sodium hydroxide (NaOH) and water ...
Characterization of a fly ash-based hybrid well cement …
The setting time results indicate that when the cement composition consists of only 30 % G oil well cement and a large proportion of fly ash(65 %∼70 %), the setting time is prolonged, especially at low curing temperature (3°C,10°C). On the other hand, with a high proportion of fly ash, the early compressive strength is quite low.
Evaluating the Performance of Class F Fly Ash Compared to …
1. Introduction. Cement is an essential material in the oil and gas industry, used for constructing oil and gas wells [].The main purpose of cement is to maintain wellbore integrity and protect it from hazards such as unwanted formation fluids and pressures, as well as uncontrolled flow of hydrocarbons that could eventually lead to …
Fly ash Class C based geopolymer for oil well cementing
Studies by Ahdaya and Imqam (2019), Jiapei et al. (2018), Salehi et al. (2016), Mahmoud et al. (2014), Davidovit (1994), and others have shown that this alternative binder has potential as a ...
Study and Use of Geopolymer Mixtures for Oil and Gas Well …
The study here presents laboratory testing results of Class F fly ash geopolymer for oil well cementing applications. The challenge reported in literature for …
Treated Fly Ash : A Drilling Fluid | Request PDF
Fly ash, for instance, has been well-researched and successfully re-used in various industries and fields. ... Oil well cementing is one of the most important steps in drilling and completion ...