Reduction of the porosity in hardened oilwell cement slurries by the usage of fine-grained additives

Kremieniewski, Marcin; Stryczek, S.

doi:10.32047/cwb.2016.21.5.4

Cited by 4 publications

(1 citation statement)

References 5 publications

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“…During in storage, solidified waste shows a considerably reduced impact on the natural environment. waste formed during the solidification process shows considerably reduced permeability values, which decreases the possibilities of filtration of a liquid through the solidified waste and at the same time reduced the release of contaminants (Batchelor 2006;Gonet et al 2009;Kremieniewski 2014). The basic parameter allowing the assessment of solidification efficiency is the measurement of compressive strength of the monolith obtained from waste.…”

Section: Waste Solidification and Stabilizationmentioning

confidence: 99%

Gospodarka Surowcami Mineralnymi - Mineral Resources Management

Steliga¹,

Uliasz²,

Kotwica³

et al. 2018

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Section: Waste Solidification and Stabilizationmentioning

confidence: 99%

Gospodarka Surowcami Mineralnymi - Mineral Resources Management

Steliga¹,

Uliasz²,

Kotwica³

et al. 2018

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Cement-based composites with waste expanded perlite - Structure, mechanical properties and durability in chloride and sulphate environments

Kapeluszna

Kotwica

Pichór

et al. 2020

Sustainable Materials and Technologies

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Ultra-Lightweight Cement Slurry to Seal Wellbore of Poor Wellbore Stability

Kremieniewski

2020

Energies

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The article presents the recipe for ultra-lightweight cement slurry for wellbore sealing. In ordinary lightweight cement slurries, the addition of microspheres and a large amount of water are used to maintain rheological parameters. This is a problem because the light particles of microspheres segregate. The cement sheath from such a cement slurry has an anisotropic microstructure and does not stabilize the casing column. In the new ultra-light cement slurry, 60% aluminosilicate microspheres and a large amount of water were used. The ultra-light weight slurry has a density below 1.2 g/cm3. This cement slurry does not segregates and in the sedimentation stability test has the same density at all measuring points. The cement slurry, despite the larger amount of water, has the same filtration as the control sample. The technological parameters of the slurry are adapted to the borehole conditions. Cement slurry is a ready-made application to seal a borehole with poor wellbore stability under conditions of 40 °C and 10 MPa pressure. The cement sheath structure in the wellbore after binding is homogeneous. The use of such slurry allows to reduce the risk of wall damage in wellbores of poor stability.

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Reduction of the porosity in hardened oilwell cement slurries by the usage of fine-grained additives

Cited by 4 publications

References 5 publications

Gospodarka Surowcami Mineralnymi - Mineral Resources Management

Gospodarka Surowcami Mineralnymi - Mineral Resources Management

Cement-based composites with waste expanded perlite - Structure, mechanical properties and durability in chloride and sulphate environments

Ultra-Lightweight Cement Slurry to Seal Wellbore of Poor Wellbore Stability

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