A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the technical field of oil field well repair, in particular to a cement paste system suitable for plugging water channeling in petroleum well repair of stratum in XinglongtaiDistrict. The cement paste system comprises dry powder and water, wherein the dry powder comprises the following components in parts by mass: 100 parts of silicate superfine cement dry powder, 20 parts of G-grade silicate cement dry powder, 15 parts of silica fume, 0.6 part of asbestos fiber dry powder, 0.5 part of expanding agent dry powder and 0.5 part of polyimide fiber dry powder; the dry powder is uniformly mixed and stirred and then blended with the water to form a slurry product with the density of 1.82 g/cm < 3 >. According to the invention, the characteristics of micro-expansibility and good toughness are realized; due to the micro-expansibility and toughness, the solidified set cement has the advantages of being good in impact resistance and high in strength, through reasonable proportion, the cement paste has good blending performance, on-site construction is facilitated, the plugging effect is good, and the pressure test of a plugged well section can meet the design requirement after plug drilling.
本发明涉及油田修井技术领域，特别涉及一种适合兴隆台地层石油修井用封堵水窜的水泥浆体系。该水泥浆体系由干粉剂和水组成，干粉剂的各组成成分及其质量份数为：硅酸盐超细水泥干粉100份，G级硅酸盐水泥干粉20份，微硅粉15份，石棉纤维干粉0.6份，膨胀剂干粉0.5份，聚酰亚胺纤维干粉0.5份；上述干粉剂混拌均匀后与水调配成密度为1.82克/立方厘米的浆体形成本产品。本发明实现了具有微膨胀性和韧性好的特点，由于微膨胀性和韧性使凝固后的水泥石具有抗冲击性好、强度高的优点，通过合理的比例配比，使水泥浆具有良好的调配性能，利于现场施工，封堵效果好，钻塞后对封堵井段试压能够达到设计要求。
The invention relates to the technical field of oil field well repair, in particular to a cement paste system suitable for plugging water channeling in petroleum well repair of stratum in XinglongtaiDistrict. The cement paste system comprises dry powder and water, wherein the dry powder comprises the following components in parts by mass: 100 parts of silicate superfine cement dry powder, 20 parts of G-grade silicate cement dry powder, 15 parts of silica fume, 0.6 part of asbestos fiber dry powder, 0.5 part of expanding agent dry powder and 0.5 part of polyimide fiber dry powder; the dry powder is uniformly mixed and stirred and then blended with the water to form a slurry product with the density of 1.82 g/cm < 3 >. According to the invention, the characteristics of micro-expansibility and good toughness are realized; due to the micro-expansibility and toughness, the solidified set cement has the advantages of being good in impact resistance and high in strength, through reasonable proportion, the cement paste has good blending performance, on-site construction is facilitated, the plugging effect is good, and the pressure test of a plugged well section can meet the design requirement after plug drilling.
本发明涉及油田修井技术领域，特别涉及一种适合兴隆台地层石油修井用封堵水窜的水泥浆体系。该水泥浆体系由干粉剂和水组成，干粉剂的各组成成分及其质量份数为：硅酸盐超细水泥干粉100份，G级硅酸盐水泥干粉20份，微硅粉15份，石棉纤维干粉0.6份，膨胀剂干粉0.5份，聚酰亚胺纤维干粉0.5份；上述干粉剂混拌均匀后与水调配成密度为1.82克/立方厘米的浆体形成本产品。本发明实现了具有微膨胀性和韧性好的特点，由于微膨胀性和韧性使凝固后的水泥石具有抗冲击性好、强度高的优点，通过合理的比例配比，使水泥浆具有良好的调配性能，利于现场施工，封堵效果好，钻塞后对封堵井段试压能够达到设计要求。
Cement paste system suitable for plugging water channeling in petroleum well repair of stratum in Xinglongtai District
一种适合兴隆台地层石油修井用封堵水窜的水泥浆体系
2020-11-13
Patent
Electronic Resource
Chinese
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