Cementy wiertnicze. Cz.5: Zastosowanie popiołów lotnych w pracach cementacyjnych

• Autorzy: Bensted J. , Smith J. R.

Warianty tytułu

EN

Oilwell Cements. Part 5: Applications of fly ash in well cementing

• Języki publikacji: PL

Abstrakty

PL

Krzemionkowe popioły lotne znalazły różnorodne zastosowania w produkcji cementów wiertniczych i w pracach cementacyjnych w wiertnictwie. Materiały te deponowane są od wielu lat w specyficznych warunkach panujących w odwiertach, co stało się przedmiotem badań i dyskusji, w których wskazano na pozytywne i negatywne strony ich aplikacji. Znacznie mniejsza jest jednakże skala zastosowań wysokowapniowych popiołów lotnych w porównaniu z popiołami krzemionkowymi i dlatego powinny one zostać poddane odpowiednim testom, które pozwolą na określenie ich stosowalności w wiertnictwie na dużych głębokościach.

EN

Pulverised fuel ash, commonly known as fly ash or pfa, has a wide versatility in its applications to oilwell cements and well cementing where high silica fly ash is employed. It has been utilised periodically for many years as a cement extender under a variety of downhole conditions. These applications are discussed and the advantages and drawbacks highlighted. High silica fly ash is shown to have considerable benefits for numerous types of usage. However, high lime fly ash has far less applicability in comparison within this particular area, and needs to be carefully checked out in simulated tests for suitability when it is being considered for downhole utilisation.

Słowa kluczowe

PL

cement wiertniczy; popiół lotny; zastosowanie praktyczne; popiół lotny wysokowapniowy; popiół lotny krzemionkowy; płuczka wiertnicza; odwiert geotermiczny

EN

oilwell cement; fly ash; high lime fly ash; high silica fly ash; drilling mud; geothermal well

• Wydawca: Fundacja Cement, Wapno, Beton
• Czasopismo: Cement Wapno Beton
• Rocznik: 2008
• Tom: R. 13/75, nr 1
• Strony: 19--32
• Opis fizyczny: Bibliogr. 30 poz., il.

Twórcy

autor

Bensted J.

autor

Smith J. R.

• Materials Chemistry Centre, Department of Chemistry, University College London, UK

Bibliografia

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