Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-temperature well cementation resin cement slurry system and composition thereof
The invention relates to the technical field of oil and gas field well drilling and cementing, and particularly discloses a resin cement paste system suitable for high-temperature well cementing and composition thereof.The cement paste system is prepared from, by mass, 100 parts of oil well cement, 35-50 parts of silica sand, 1.0-6.0 parts of nano-silica, 2.0-10.0 parts of resin, 0.06-0.8 part of a curing initiator, 1.0-2.5 parts of a fluid loss agent, 0.3-3.5 parts of a retarder and 0.5-1.2 parts of a drag reducer. 0.2 to 1 part of a defoaming agent and 50 to 60 parts of water. The resin is phenolic epoxy vinyl ester resin, the phenolic epoxy vinyl ester resin is good in compatibility with cement paste, the high-temperature curing time is adjustable, and the high-temperature resistance of a resin condensate reaches 200 DEG C. The cement paste system is adjustable in high-temperature thickening and low in water loss and has excellent mechanical properties of high strength and low elasticity after being cured, all indexes can completely meet the requirements of field well cementation, and technical guarantee can be provided for high-temperature complex stratum well cementation.
本发明涉及油气田钻井固井技术领域，具体公开了一种适用于高温固井用树脂水泥浆体系及其组成，所述水泥浆体系包括如下质量份的组分：油井水泥100份，硅砂35～50份，纳米二氧化硅1.0～6.0份，树脂2.0～10.0份，固化引发剂0.06～0.8份，降失水剂1.0～2.5份，缓凝剂0.3～3.5份，减阻剂0.5～1.2份，消泡剂0.2～1份，水50～60份。所述树脂为一种酚醛环氧乙烯基酯树脂，该酚醛环氧乙烯基酯树脂与水泥浆配伍性好，高温固化时间可调，树脂固化物耐高温能力达200℃。该水泥浆体系高温稠化可调，失水量低，固化后具有高强、低弹的优异力学性能，各指标完全可以满足现场固井的要求，能够为高温复杂地层固井提供技术保障。
High-temperature well cementation resin cement slurry system and composition thereof
The invention relates to the technical field of oil and gas field well drilling and cementing, and particularly discloses a resin cement paste system suitable for high-temperature well cementing and composition thereof.The cement paste system is prepared from, by mass, 100 parts of oil well cement, 35-50 parts of silica sand, 1.0-6.0 parts of nano-silica, 2.0-10.0 parts of resin, 0.06-0.8 part of a curing initiator, 1.0-2.5 parts of a fluid loss agent, 0.3-3.5 parts of a retarder and 0.5-1.2 parts of a drag reducer. 0.2 to 1 part of a defoaming agent and 50 to 60 parts of water. The resin is phenolic epoxy vinyl ester resin, the phenolic epoxy vinyl ester resin is good in compatibility with cement paste, the high-temperature curing time is adjustable, and the high-temperature resistance of a resin condensate reaches 200 DEG C. The cement paste system is adjustable in high-temperature thickening and low in water loss and has excellent mechanical properties of high strength and low elasticity after being cured, all indexes can completely meet the requirements of field well cementation, and technical guarantee can be provided for high-temperature complex stratum well cementation.
本发明涉及油气田钻井固井技术领域，具体公开了一种适用于高温固井用树脂水泥浆体系及其组成，所述水泥浆体系包括如下质量份的组分：油井水泥100份，硅砂35～50份，纳米二氧化硅1.0～6.0份，树脂2.0～10.0份，固化引发剂0.06～0.8份，降失水剂1.0～2.5份，缓凝剂0.3～3.5份，减阻剂0.5～1.2份，消泡剂0.2～1份，水50～60份。所述树脂为一种酚醛环氧乙烯基酯树脂，该酚醛环氧乙烯基酯树脂与水泥浆配伍性好，高温固化时间可调，树脂固化物耐高温能力达200℃。该水泥浆体系高温稠化可调，失水量低，固化后具有高强、低弹的优异力学性能，各指标完全可以满足现场固井的要求，能够为高温复杂地层固井提供技术保障。
High-temperature well cementation resin cement slurry system and composition thereof
高温固井树脂水泥浆体系及其组成
WANG CHENGWEN (Autor:in) / HU JIANGCHUAN (Autor:in) / CHEN ZEHUA (Autor:in) / FENG QI (Autor:in) / GUO XINYANG (Autor:in)
25.11.2022
Patent
Elektronische Ressource
Chinesisch
Well cementation cement slurry composition and well cementation cement slurry
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