Abdulmalek Ahmed
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View article: Utilizing Saudi volcanic scoria in lightweight geopolymer for enhanced wellbore cementing
Utilizing Saudi volcanic scoria in lightweight geopolymer for enhanced wellbore cementing Open
Geopolymer cement represents an innovative and environmentally friendly cement system that utilizes non-portlandite precursors to achieve cement hardening. Unlike traditional Portland cement, which accounts for approximately 5-8% of global…
View article: Application of Qusaiba Kaolinite Clays as Secondary Cementitious Material in Oil Well Cementing
Application of Qusaiba Kaolinite Clays as Secondary Cementitious Material in Oil Well Cementing Open
The oil and gas industry, constituting 90% of Saudi Arabia's exports, relies on essential operations, including oil-well cementing. This crucial process ensures zonal isolation and wellbore structural support. While traditional cementing i…
View article: Enhancing the properties of high-density oil well cement with Qusaiba kaolinite
Enhancing the properties of high-density oil well cement with Qusaiba kaolinite Open
View article: Investigating the effect of perlite particles on ilmenite-based oil well cement
Investigating the effect of perlite particles on ilmenite-based oil well cement Open
Well cementing is a critical operation for maintaining the stability of an oil well. Various additives have been employed to modify cement properties to meet downhole requirements in the formulation of oil-well cement. In this study, exper…
View article: Synthetic Clay Application to Reduce the Segregation of Barite-Based Oil-Well Cement
Synthetic Clay Application to Reduce the Segregation of Barite-Based Oil-Well Cement Open
In the oil and gas industry, cement segregation is a significant concern that can have disastrous consequences, such as the failure of cement. The change of hardened cement's properties is observed, resulting in a decrease in its strength …
View article: The Combined Effect of Nanoclay Powder and Curing Time on the Properties of Class G Cement
The Combined Effect of Nanoclay Powder and Curing Time on the Properties of Class G Cement Open
When the cement paste is subjected to stresses, the cement matrix and its characteristics are dramatically influenced, especially in the early ages of cement hydration when the cement properties have not yet settled. Nanoclay, which is mad…
View article: The effect of polypropylene fiber on the curing time of class G oil well cement and its mechanical, petrophysical, and elastic properties
The effect of polypropylene fiber on the curing time of class G oil well cement and its mechanical, petrophysical, and elastic properties Open
The cement paste is subjected to various loads throughout a well’s life, which may compromise some of its essential characteristics and impair its performance. When the cement paste is first being formed and the cement’s characteristics ha…
View article: Analysis of the Impact of Vermiculite on Hematite-Based Cement Systems
Analysis of the Impact of Vermiculite on Hematite-Based Cement Systems Open
Heavyweight oil-well cement systems are designed for isolating intervals and supporting the casing at deeper depths where high temperatures and pressures are encountered. The cement slurry should have adequate rheology to ensure efficient …
View article: Curing Time Impacts on the Mechanical and Petrophysical Properties of a Laponite-Based Oil Well Cement
Curing Time Impacts on the Mechanical and Petrophysical Properties of a Laponite-Based Oil Well Cement Open
Throughout the life of a well, the cement sheath is exposed to several loadings, which can harm its key properties and impede its functions. These loadings become more significant at the early age of forming the cement sheath in which the …
View article: Minimizing the Barite Scale in Carbonate Formations during the Filter Cake Removal Process
Minimizing the Barite Scale in Carbonate Formations during the Filter Cake Removal Process Open
The barite scale is one of the most common scales in the oil and gas industry. It can form in the reservoir or precipitate in different production equipment. The formation of such a scale will significantly minimize the capillary diameter …
View article: The Use of the Granite Waste Material as an Alternative for Silica Flour in Oil-Well Cementing
The Use of the Granite Waste Material as an Alternative for Silica Flour in Oil-Well Cementing Open
Silica flour is one of the most commonly used material in cementing oil wells at high-temperature conditions of above 230 °F to prevent the deterioration in the strength of the cement. In this study, replacement of the silica flour with th…
View article: Influence of Weighting Materials on the Properties of Oil-Well Cement
Influence of Weighting Materials on the Properties of Oil-Well Cement Open
The integrity of oil and gas wells is largely dependent on the cement job. Maintaining the properties of the cement layer throughout the life of a well is a difficult task, particularly in high-temperature and -pressure conditions such as …
View article: Improving Saudi Class G Oil-Well Cement Properties Using the Tire Waste Material
Improving Saudi Class G Oil-Well Cement Properties Using the Tire Waste Material Open
After oil and gas well drilling, they should be cased and cemented to ensure the stability of the wellbore and to isolate the trouble zones. To achieve these jobs, several additives are incorporated into the cement slurry to improve the ce…
View article: Application of Artificial Intelligence Techniques in Predicting the Lost Circulation Zones Using Drilling Sensors
Application of Artificial Intelligence Techniques in Predicting the Lost Circulation Zones Using Drilling Sensors Open
Drilling a high-pressure, high-temperature (HPHT) well involves many difficulties and challenges. One of the greatest difficulties is the loss of circulation. Almost 40% of the drilling cost is attributed to the drilling fluid, so the loss…
View article: A Novel Solution for Severe Loss Prevention While Drilling Deep Wells
A Novel Solution for Severe Loss Prevention While Drilling Deep Wells Open
The loss of circulation is a big problem in drilling operations. This problem is costly, time-consuming and may lead to a well control situation. Much research has investigated the effectiveness of using different chemicals as lost circula…
View article: The Effect of Weighting Materials on Oil-Well Cement Properties While Drilling Deep Wells
The Effect of Weighting Materials on Oil-Well Cement Properties While Drilling Deep Wells Open
In deep hydrocarbon development wells, cement slurry with high density is required to effectively balance the high-pressure formations. The increase in the slurry density could be achieved by adding different heavy materials. In this study…
View article: New Artificial Neural Networks Model for Predicting Rate of Penetration in Deep Shale Formation
New Artificial Neural Networks Model for Predicting Rate of Penetration in Deep Shale Formation Open
Rate of penetration (ROP) means how fast the drilling bit is drilling through the formations. It is known that in the petroleum industry, most of the well cost is taken by the drilling operations. Therefore, it is very crucial to drill car…
View article: Influence of Nanoclay Content on Cement Matrix for Oil Wells Subjected to Cyclic Steam Injection
Influence of Nanoclay Content on Cement Matrix for Oil Wells Subjected to Cyclic Steam Injection Open
High-temperature conditions drastically compromise the physical properties of cement, especially, its strengths. In this work, the influence of adding nanoclay (NC) particles to Saudi class G oil well cement (OWC) strength retrogression re…