FIELD: drilling engineering.
SUBSTANCE: invention relates to boring wells and may be used to drill concrete and especially tough rocks with diamond crowns. Water-based drilling fluid according to invention contains, wt %: carboxymethylcellulose 5-7, polymeric foam suppressor 0.8-1, mirabilite (Glauber's salt) as heat absorbent 20-30, and mustard powder as mudding component 3-5.
EFFECT: increased drilling tool cooling and wear efficiency.
3 tbl
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| NON-CLAY STRONGLY ALKALINE DRILLING MUD WITH HIGH BRIDGING PROPERTIES FOR DRILLING IN HARSH ENVIRONMENTS | 2016 |
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| WELL COMPLETION METHOD | 2004 |
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| MUD FLUID FOR STABILISATION OF MUD SHALE | 2013 |
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| METHOD OF PROCESSING PRIMARILY FLAT HORIZONTAL WELL HOLE FOR REMOVAL OF MUD BULK FROM BOTTOM-HOLE FORMATION ZONE | 2011 |
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| DRILLING FLUID AND A METHOD FOR PREPARATION THEREOF | 2002 |
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| CLAY-LESS POLYSACCHARIDE DRILLING AGENT | 2009 |
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| METHOD FOR COLMATAGE REMOVAL FROM BOTTOMHOLE FORMATION ZONE UPON FIRST OPENING TO RESTORE PERMEABILITY AND POROSITY OF HEADER | 2013 |
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| POLYFUNCTIONAL COMPLEX REAGENT FOR WARNING OCCURRENCE OF DIFFERENTIAL STICKING | 2009 |
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