GROUTING MORTAR FOR CEMENTING HORIZONTAL SECTIONS OF WELLS Russian patent published in 2024 - IPC C09K8/467 

FIELD: mining.

SUBSTANCE: invention relates to the field of well construction, in particular to grouting mortars for cementing horizontal sections of oil, gas and gas condensate wells. Grouting mortar for cementing horizontal sections of wells contains grouting portland cement, water, as well as aluminosilicate microspheres, magnesium oxide, basalt fibre, hydroxyethyl cellulose Sulfacell 400 and superplasticiser S-3, with the following ratio of components, wt.%: grouting portland cement “ПЦТ-I-100” – 50–57, aluminosilicate microspheres – 5–8, magnesium oxide – 2–3, basalt fibre – 0.5–0.7, hydroxyethyl cellulose Sulfacell 400 – 0.2–0.3, superplasticiser “С-3” – 0.05–0.1, water – balance.

EFFECT: improving the quality of cementing horizontal sections of wells.

1 cl, 1 tbl