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Solid-phase-resistant discrete cement slurry system and preparation method thereof
The invention provides an anti-solid-phase discrete cement slurry system and a preparation method thereof. The cement paste system is prepared from the following components in parts by weight: 600 to 700 parts of G-grade oil well cement, 15 to 25 parts of superfine cement, 0.7 to 2.1 parts of modified methylcellulose, 0.5 to 1.5 parts of anionic polyacrylamide, 0.02 to 0.05 part of zwitterionic polyacrylamide, 0.7 to 3.5 parts of dispersing agent, 1.4 to 3.5 parts of gypsum and water. The preparation method of the cement paste system comprises the following steps: carrying out dry mixing on the G-grade oil well cement, the superfine cement, the modified methylcellulose, the dispersing agent and the gypsum; adding polyacrylamide into water to obtain a polyacrylamide aqueous solution; and adding the dry mixture into a polyacrylamide aqueous solution, and uniformly stirring to obtain the solid-phase-resistant discrete cement paste system. The invention provides a cement paste system capable of aggregating solid-phase particles in the cement paste system and resisting solid-phase dispersion and formation water dilution.
本发明提供了一种抗固相离散水泥浆体系及其制备方法。以重量份计，该水泥浆体系包括G级油井水泥600～700份，超细水泥15～25份，改性甲基纤维素0.7～2.1份，阴离子聚丙烯酰胺0.5～1.5份，两性离子聚丙烯酰胺0.02～0.05份，分散剂0.7～3.5份，石膏1.4～3.5份和水。该水泥浆体系的制备方法为将G级油井水泥、超细水泥、改性甲基纤维素、分散剂、石膏干混；在水中加入聚丙烯酰胺，得到聚丙烯酰胺水溶液；将干混料加入聚丙烯酰胺水溶液中，搅拌均匀，得到抗固相离散水泥浆体系。本发明提供了一种能将水泥浆体系中固相颗粒团聚并抗拒固相离散、抗地层水稀释的水泥浆体系。
Solid-phase-resistant discrete cement slurry system and preparation method thereof
The invention provides an anti-solid-phase discrete cement slurry system and a preparation method thereof. The cement paste system is prepared from the following components in parts by weight: 600 to 700 parts of G-grade oil well cement, 15 to 25 parts of superfine cement, 0.7 to 2.1 parts of modified methylcellulose, 0.5 to 1.5 parts of anionic polyacrylamide, 0.02 to 0.05 part of zwitterionic polyacrylamide, 0.7 to 3.5 parts of dispersing agent, 1.4 to 3.5 parts of gypsum and water. The preparation method of the cement paste system comprises the following steps: carrying out dry mixing on the G-grade oil well cement, the superfine cement, the modified methylcellulose, the dispersing agent and the gypsum; adding polyacrylamide into water to obtain a polyacrylamide aqueous solution; and adding the dry mixture into a polyacrylamide aqueous solution, and uniformly stirring to obtain the solid-phase-resistant discrete cement paste system. The invention provides a cement paste system capable of aggregating solid-phase particles in the cement paste system and resisting solid-phase dispersion and formation water dilution.
本发明提供了一种抗固相离散水泥浆体系及其制备方法。以重量份计，该水泥浆体系包括G级油井水泥600～700份，超细水泥15～25份，改性甲基纤维素0.7～2.1份，阴离子聚丙烯酰胺0.5～1.5份，两性离子聚丙烯酰胺0.02～0.05份，分散剂0.7～3.5份，石膏1.4～3.5份和水。该水泥浆体系的制备方法为将G级油井水泥、超细水泥、改性甲基纤维素、分散剂、石膏干混；在水中加入聚丙烯酰胺，得到聚丙烯酰胺水溶液；将干混料加入聚丙烯酰胺水溶液中，搅拌均匀，得到抗固相离散水泥浆体系。本发明提供了一种能将水泥浆体系中固相颗粒团聚并抗拒固相离散、抗地层水稀释的水泥浆体系。
Solid-phase-resistant discrete cement slurry system and preparation method thereof
一种抗固相离散水泥浆体系及其制备方法
GAO GUOCHENG (author) / CHEN XIAORONG (author) / WANG WENBIN (author) / LI HAIZHU (author) / WAN XIANGCHEN (author) / LIU XIAOKUN (author) / PAN YUQIANG (author) / MIN JIANGBEN (author) / LI HAILONG (author) / ZHAO JINFENG (author)
2024-03-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B28C
Tonaufbereitung
,
PREPARING CLAY
/
C08B
POLYSACCHARIDES
,
Polysaccharide
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
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