WEIGHTED BUFFER LIQUID

attachment of oil and gas wells, more particularly grouting of casing strings. SUBSTANCE: weighted buffer liquid comprises clay powder, polyacrylamide, carboxymethyl cellulose weighting compound, e.g. iron ore concentrated and water, ratios of components being as follows: wt.%: clay powder, 1.92-2.3...

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Bibliographische Detailangaben
Hauptverfasser:	BATALOV D.M, SHCHERBICH N.E, KOVJAZIN N.I, FROLOV A.A, SEVODIN N.M, KARMATSKIKH S.A, KASHNIKOVA L.L, JANKEVICH V.F, USYNIN A.F
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MINING MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PAINTS POLISHES
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Beschreibung
Zusammenfassung:	attachment of oil and gas wells, more particularly grouting of casing strings. SUBSTANCE: weighted buffer liquid comprises clay powder, polyacrylamide, carboxymethyl cellulose weighting compound, e.g. iron ore concentrated and water, ratios of components being as follows: wt.%: clay powder, 1.92-2.38; polyacrylamide, 0.02-0.03; carboxymethyl cellulose, 0.10- 0.13; iron ore concentrate, 52.29-61.47; and water 36.49-45.17. EFFECT: lower water loss, higher sedimentation stability, formation of structure capable of carrying weighting compound, elimination of coagulation of contact zones between drilling mud and grouting mortar in zone of abnormally high seam pressure. 3 tbl