Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-density compression-resistant well cementation cement paste and preparation method thereof
The invention relates to the technical field of oil drilling and well cementation cement paste, in particular to low-density pressure-resistant well cementation cement paste and a preparation method thereof. The low-density compression-resistant well cementation cement slurry is prepared from the following raw materials in parts by mass: 100 parts of oil well cement, 50-80 parts of modified fly ash, 10 parts of a slurry stabilizer, 0.5 part of a dispersing agent, 0.5 part of an early strength agent, 1.5 parts of an activating agent, 3 parts of a fluid loss agent, 0-2.5 parts of a retarder and 160-163 parts of water. According to the low-density compression-resistant well cementation cement paste and the preparation method, the limitation that glass bead low-density cement paste cannot be applied to a deep well is broken through, and the defects that conventional fly ash low-density cement paste is poor in slurry flow state, low in compression strength and slow in strength development are overcome; the invention has the advantages of high pressure adaptability, good flow regime, high compressive strength, fast strength development, low cost and the like.
本发明涉及石油钻井固井水泥浆技术领域，是一种低密度抗压固井水泥浆及制备方法，该低密度抗压固井水泥浆原料按质量份数计包括油井水泥100份、改性粉煤灰50份至80份、浆体稳定剂10份、分散剂0.5份、早强剂0.5份、激活剂1.5份、降失水剂3份、缓凝剂0至2.5份、水160至163份。本发明的低密度抗压固井水泥浆及制备方法突破了玻璃微珠低密度水泥浆无法在深井中应用的局限性，也克服了常规粉煤灰低密度水泥浆浆体流态差，抗压强度低，强度发展慢的缺点，具有适应高压、流态好、抗压强度高、强度发展快、成本低等优点。
Low-density compression-resistant well cementation cement paste and preparation method thereof
The invention relates to the technical field of oil drilling and well cementation cement paste, in particular to low-density pressure-resistant well cementation cement paste and a preparation method thereof. The low-density compression-resistant well cementation cement slurry is prepared from the following raw materials in parts by mass: 100 parts of oil well cement, 50-80 parts of modified fly ash, 10 parts of a slurry stabilizer, 0.5 part of a dispersing agent, 0.5 part of an early strength agent, 1.5 parts of an activating agent, 3 parts of a fluid loss agent, 0-2.5 parts of a retarder and 160-163 parts of water. According to the low-density compression-resistant well cementation cement paste and the preparation method, the limitation that glass bead low-density cement paste cannot be applied to a deep well is broken through, and the defects that conventional fly ash low-density cement paste is poor in slurry flow state, low in compression strength and slow in strength development are overcome; the invention has the advantages of high pressure adaptability, good flow regime, high compressive strength, fast strength development, low cost and the like.
本发明涉及石油钻井固井水泥浆技术领域，是一种低密度抗压固井水泥浆及制备方法，该低密度抗压固井水泥浆原料按质量份数计包括油井水泥100份、改性粉煤灰50份至80份、浆体稳定剂10份、分散剂0.5份、早强剂0.5份、激活剂1.5份、降失水剂3份、缓凝剂0至2.5份、水160至163份。本发明的低密度抗压固井水泥浆及制备方法突破了玻璃微珠低密度水泥浆无法在深井中应用的局限性，也克服了常规粉煤灰低密度水泥浆浆体流态差，抗压强度低，强度发展慢的缺点，具有适应高压、流态好、抗压强度高、强度发展快、成本低等优点。
Low-density compression-resistant well cementation cement paste and preparation method thereof
低密度抗压固井水泥浆及制备方法
10.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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