Results 171 to 180 of about 33,572 (231)
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Epoxy Resins-Cement Slurries for Primary Cementing Application
Abu Dhabi International Petroleum Exhibition & Conference, 2020Abstract Polymer resin systems have many advantages over conventional cement. Since resins are solids-free particles, they can be used in low injectivity zones such as narrow fractures where conventional cement cannot be squeezed through.
Ahmad Atef Hashmi +8 more
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Advanced Materials
AbstractWeaving, a pivotal technique in human construction activities since the Neolithic era, remains unattainable in modern concrete construction. Here, a novel particleâpolymer coalescence strategy is proposed, which involves electrostatic, bridging, coordinating, and hydrogen bonding interactions, to establish balanced particle cohesion, enabling ...
Chengji Xu +11 more
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AbstractWeaving, a pivotal technique in human construction activities since the Neolithic era, remains unattainable in modern concrete construction. Here, a novel particleâpolymer coalescence strategy is proposed, which involves electrostatic, bridging, coordinating, and hydrogen bonding interactions, to establish balanced particle cohesion, enabling ...
Chengji Xu +11 more
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2018
Cement slurry chemistry is to study the composition and property of cement slurry and its control and adjustment to achieve the purpose of sealing leakage layers, complex stratum, and protecting the production layer and casing. The type, structure, performance, and function mechanisms of cement additives are major components of cement slurry chemistry.
Caili Dai, Fulin Zhao
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Cement slurry chemistry is to study the composition and property of cement slurry and its control and adjustment to achieve the purpose of sealing leakage layers, complex stratum, and protecting the production layer and casing. The type, structure, performance, and function mechanisms of cement additives are major components of cement slurry chemistry.
Caili Dai, Fulin Zhao
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Mixing of Cement Slurries During Cement Plug Setting
SPE Deepwater Drilling and Completions Conference, 2016Abstract Cement plugs are used for various reasons in wellbores, including control of lost circulation zones, initiation of deviation or side tracking, wellbore abandonment, and more. Unfortunately, one of the most questionable processes during the drilling and completion stage of a wellbore is the quality of the cementing job.
Sukru Durmaz +5 more
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Why Control Cement Slurry Density?
SPE Asia Pacific Oil and Gas Conference, 1993Abstract The well cementation design process includes slurry design, spacer design, hole conditioning program design, casing attachments selection, and placement procedure design. This paper is concerned with slurry design and more particularly, the effects of deviations in mixed slurry density from the design point.
T.E. Allen, F.L. Sands
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Advances In Cement Slurry Application
Technical Meeting / Petroleum Conference of The South Saskatchewan Section, 1989Abstract Many difficulties attributed to poor cement bonding (ie. annular gas migration and poor zonal isolation) have been encountered In Southern Saskatchewan. The most important criteria for obtaining a good cement job are: proper casing centralizalion. efficient mud removal, and constant cement
G. Lancaster, S. Gray
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Slag-Cement-Bentonite Slurry Walls
Journal of Geotechnical and Geoenvironmental Engineering, 2005In both the United States and the United Kingdom, slurry walls are used as vertical barriers to control groundwater flow and to contain contaminants as part of waste containment systems. In the United States, slurry walls are commonly constructed using soil-bentonite ~SB!
Shana M. Opdyke, Jeffrey C. Evans
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Soil-Cement-Bentonite Slurry Walls
Deep Foundations 2002, 2002Soil-Cement-Bentonite (SCB) slurry walls have been used with increasing frequency in recent years to provide barriers to the lateral flow of groundwater in situations where the strength of a normal soil-bentonite wall would be inadequate to carry foundation loads.
Christopher R. Ryan, Steven R. Day
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Cement-Bentonite Slurry Systems
Grouting and Deep Mixing 2012, 2012Mixtures of clay and lime or clay and natural pozzolans are possibly some of the most ancient construction materials, and yet there is still much that we do not know about the properties of clay-binder systems. There has been an enormous amount of research on cements and also on clays, but curiously there has been little systematic research on combined
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Cement-Slurry Performance and Set-Cement Properties vs. Microsilica Densification
SPE Drilling & Completion, 2008SummaryMicrosilica is the extremely fine noncrystalline silica obtained in electric furnaces as a byproduct in the manufacture of elemental silicon and ferrosilicon alloys. This waste material, also improperly called silica fume, is available in different grades of various handling characteristics. It has been used for years as cement admixture both in
Fatma Daou, Bernard Piot
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