Results 1 to 10 of about 13,235 (118)

Enhancing the properties of high-density oil well cement with Qusaiba kaolinite [PDF]

Scientific Reports
High-density cement slurries used in oil well cementing often face challenges such as particle settling, poor rheological properties, permeability, and compressive strength degradation, which can compromise zonal isolation and well integrity.
Abdulmalek Ahmed, Ahmed Abdulhamid Mahmoud, Salaheldin Elkatatny, Dhafer Al Shehri, Korhan Ayranci   +4 more
doaj   +2 more sources

Experimental study on modification of water-based filtercake to improve the bonding strength at the wellbore cement-formation interface

Petroleum Research, 2023
The objective of this experimental study is to improve the cementing bond quality of sandstone oil-gas well along the wellbore cement-formation interface (WCFI), so as to ensure long-term zonal isolation throughout the lifecycle of the well by using NSO ...
Kevin Nsolloh Lichinga
doaj   +1 more source

Study on mineral composition design and mechanical properties improvement mechanism of high ferrite oil well cement

Frontiers in Materials, 2022
In shale gas production, secondary fracturing technology is often used to improve shale gas production capacity. However, the toughness of cement stone used in Class G oil wells is poor, and the cement sheath is easily damaged by impact load during ...
Baitao Fan, Kun Huang, Xiangqian Yang, Zhiqiang Wu, Xiucheng Ni, Xiaowei Cheng   +5 more
doaj   +1 more source

Preliminary Investigation on G Cement Modified by Nano-Powder [PDF]

Engineering and Technology Journal, 2020
A proper slurry design is critical to cementing work success. In the present investigation, a ball mill method was utilized for preparing a nano powder from a cement dust material, supplied via Al-Kufa Cement Factory, to reinforce the oil well cement by ...
Doaa M. Abdullah, Alaa A. Abdullalhameed, Farhad M. Othman   +2 more
doaj   +1 more source

Influence of different additives on the creep property of oil well cement

Frontiers in Built Environment, 2022
As the exploitation of oil and gas field becomes more difficulty nowadays, severe casing deformation may occur if anti-extrusion strength of casing decreases to a certain degree and this brings large economic loss and severe safety problems.
Meimei Song, Yang Gao, Yafei Zhang
doaj   +1 more source

A Review of Recent Research on Contamination of Oil Well Cement with Oil-based Drilling Fluid and the Need of New and Accurate Correlations

ChemEngineering, 2020
Drilling fluids and oil well cement are important well barriers. Their compatibility affects the long-term integrity of the well. The mixing of drilling fluid with the oil well cement causes contamination of oil well cement.
Nachiket Arbad, Catalin Teodoriu
doaj   +1 more source

Experimental Investigation to Enhance Oil Well Cement Compressive Strength by Using Nano Silica and Synthetic Fiber

Iraqi Geological Journal, 2023
The cementing process is one of the main and vital elements in the drilling and completion of oil and gas wells. Cement slurry design plays an essential role in cementing operations. Compressive strength, which represents a material's ability to
Ayoob Saadoon, Ayad Al-Haleem
doaj   +1 more source

Application of anticorrosive materials in cement slurry: Progress and prospect

Frontiers in Materials, 2022
During gas well cementing operation, the erosion of acidic formation corrosive medium will destroy the cementation between the cement slurry and the sidewall in the well sealing section, reduce the mechanical properties of the cement paste, cause ...
Yihang Zhang, Jiaxin Wen, Xuejiao Yin, Xin Zhang   +3 more
doaj   +1 more source

Effects of Hydroxycarboxylic Acid-Based Retarder on the Compressive Strength of Geopolymer Cement under Wellbore Conditions

Engineering Proceedings, 2023
In oil well cementing, cement must flow through the casing before reaching the targeted annulus; hence, a retarder must be added to provide the cement with sufficient time to reach the targeted depth before setting.
Nurul Nazmin Zulkarnain, Afif Izwan Abd Hamid, Nasir Shafiq, Siti Humairah Abd Rahman, Syed Ahmad Farhan   +4 more
doaj   +1 more source

An NMR Investigation of the Influence of Cation Content in Polymer Ion Retarder on Hydration of Oil Well Cement

Energies, 2022
Low field pulse nuclear magnetic resonance (LF-NMR) was used to analyze the effects of a polymeric ion retarder and the amount of acryloxyethyl trimethylammonium chloride (DMC) in the retarder on the distribution of T2, thickening property, and strength ...
Zhigang Qi, Yang Chen, Haibo Yang, Hui Gao, Chenhui Hu, Qing You   +5 more
doaj   +1 more source