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COMPLEX POWDER COMPOSITION FOR STRUCTURED SPACER FLUID PREPARATION
COMPLEX POWDER COMPOSITION FOR STRUCTURED SPACER FLUID PREPARATION
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机译:用于结构化间隔液制备的复杂粉末成分
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摘要
FIELD: gas and oil production.;SUBSTANCE: invention refers to structured spacer fluids with adjustable density, applied in separation of backfilling and drilling slurry of different composition and density and in efficient displacement of drilling slurry from well cementing interval with abnormally high bed pressure (AHBP). Complex powder composition for structured spacer fluid preparation includes, wt %: the rest is lignin-alkaline agent of fraction composition, % at mesh sieve: N 0.9 - 2.12; N 0.315 - 22.35; N 0.08 - 34.10, N 0.08 and others are the rest; 80.0-85.0, carboxymethyl cellulose 15.0-20.0, nitrylotrimethylphosphonic acid 0.01- 0.15 above 100%.;EFFECT: increased quality of well bore preparation for cementing, improved cement contact with string and rock, bed separation quality in wells with AHBP.;1 ex, 1 tbl
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机译:领域:本发明是指密度可调的结构化隔离液,适用于分离具有不同组成和密度的回填和钻井泥浆,以及有效地置换具有异常高床压的井固井间隔中的钻井泥浆( AHBP)。用于结构化间隔液制备的复合粉末组合物包括,wt%:其余为馏分组成的木质素-碱性试剂,网眼筛%:N 0.9-2.12;和N 0.315-22.35; N为0.08-34.10,N为0.08等。 80.0-85.0,羧甲基纤维素15.0-20.0,次氮基三甲基膦酸0.01-0.15(100%以上);效果:提高了固井的井眼准备质量,改善了与弦石的水泥接触,AHBP井的层分离质量; 1 ex ,1汤匙
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