FIELD: mining.
SUBSTANCE: invention relates to a well treatment composition containing a compound with a rare-earth element, which contains one or more of the following elements: scandium, yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, lutetium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium or ytterbium; wherein the well treatment composition is a cement suspension, a drilling fluid or a buffer liquid. Also disclosed are methods of well bore cementing, methods of displacement of the first fluid and methods of borehole drilling in underground formation using cement suspension, buffer fluid or drilling mud. Invention is developed in dependent claims.
EFFECT: improved operational properties.
10 cl, 4 tbl
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| COMPATIBLE BUFFER LIQUIDS MADE OF LOW-CRYSTALLINE SILICON DIOXIDE | 2019 |
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| PLACING A FLUID COMPRISING KILN DUST IN A WELLBORE THROUGH A BOTTOM HOLE ASSEMBLY | 2014 |
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| NOVEL WEIGHT MATERIALS FOR USE IN CEMENT, SPACER AND DRILLING FLUIDS | 2011 |
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RU2520233C2 |
| APPLICATION OF CEMENTS BASED ON METAL OXIDES | 2017 |
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RU2746637C2 |
| TWO-COMPONENT CEMENT COMPOSITIONS WITH DELAYED SETTING | 2014 |
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RU2632086C1 |
| POLYMERS SWELLING IN WATER PREVENTING LOSS OF CIRCULATION | 2006 |
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RU2436946C2 |
| CURABLE COMPOSITIONS CONTAINING WOLLASTONITE AND PUMICE AND METHODS FOR USE THEREOF | 2013 |
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RU2597906C1 |
| SLAKED LIME FLUIDITY IN COMPOSITIONS WITH DELAYED SETTING AND OTHER COMPOSITION CAPABLE OF SOLIDIFYING | 2013 |
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RU2621818C1 |
| SET-DELAYED PUMICE-CONTAINING CEMENT COMPOSITIONS AND CORRESPONDING METHODS | 2014 |
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