NON-SOLIDIFYING PLUGGING-BACK COMPOUND

FIELD: oil and gas producing industry; plugging-back compounds for cementing, abandonment and conservation of wells; abandonment of lost circulation horizons. ^ SUBSTANCE: proposed compound posses high stability and plasticity, as well as insulating properties and colmatage effect at temperatures of...

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Bibliographische Detailangaben
Hauptverfasser:	KURBANOV JA.M, MAVLJUTOVA F.R, KHAFIZOVA EH.N, CHEREMISINA N.A, KOTEL'NIKOV S.A
Format:	Patent
Sprache:	eng ; rus
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:	FIELD: oil and gas producing industry; plugging-back compounds for cementing, abandonment and conservation of wells; abandonment of lost circulation horizons. ^ SUBSTANCE: proposed compound posses high stability and plasticity, as well as insulating properties and colmatage effect at temperatures of from 70 to 120 C. Proposed non-solidifying compound contains, mass-%: latex, 2-5; palygorskit mud powder, 4.8-10.0; bentonite mud powder, 1.2=4.0; polymer stabilizing agents of carboxymethyl cellulose, 0.4-1.5; polyacryl amide, 0.0015-0.005; baryta, 10-60; the remainder being water. ^ EFFECT: enhanced efficiency and ecological safety. ^ 1 tbl,3 ex