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Well cementation cement slurry system and preparation method and application thereof
The invention relates to a well cementation cement slurry system as well as a preparation method and application thereof. The cement paste system is prepared from the following raw materials: cement, particle aggregate, active powder, a nano filling material, a toughening material, an early strength agent, a water reducing agent and water. The well cementation cement slurry system provided by the invention has good compatibility with various additives, is stable in performance, and can meet the construction requirements of metal-sleeve-free well cementation of oil and gas wells, and compared with a conventional well cementation technology, the formed metal-sleeve-free well cementation technology is low in price and saves cost, and set cement obtained after setting and hardening has a good application prospect. The cement stone has high compressive strength, tensile strength and toughness, the deformation resistance and impact resistance of the cement stone are remarkably improved, the effects of shaft internal pressure, external extrusion, drilling impact load and the like after shallow stratum well cementation in an oil and gas well can be borne, and the functional requirements of shallow metal-sleeve-free well cementation in the oil and gas well are met.
本发明涉及一种固井水泥浆体系及其制备方法和应用。所述水泥浆体系的制备原料包括：水泥、微粒集料、活性粉末、纳米填充物料、增韧物料、早强剂、减水剂和水。本发明提供的固井水泥浆体系与各种外加剂之间的配伍性较好，且性能稳定，能够满足油气井无金属套管固井施工要求，其所形成的无金属套管固井技术，与常规固井技术相比，价格低廉，节约成本，经凝结硬化后所得到的水泥石，具有较高的抗压强度和抗拉强度，而且还具有较强的韧性，显著提高了水泥石的抗变形能力和抗冲击性，可承受油气井中浅层地层固井后井筒内压、外挤和钻进冲击荷载等作用，满足油气井中浅层无金属套管固井的功能要求。
Well cementation cement slurry system and preparation method and application thereof
The invention relates to a well cementation cement slurry system as well as a preparation method and application thereof. The cement paste system is prepared from the following raw materials: cement, particle aggregate, active powder, a nano filling material, a toughening material, an early strength agent, a water reducing agent and water. The well cementation cement slurry system provided by the invention has good compatibility with various additives, is stable in performance, and can meet the construction requirements of metal-sleeve-free well cementation of oil and gas wells, and compared with a conventional well cementation technology, the formed metal-sleeve-free well cementation technology is low in price and saves cost, and set cement obtained after setting and hardening has a good application prospect. The cement stone has high compressive strength, tensile strength and toughness, the deformation resistance and impact resistance of the cement stone are remarkably improved, the effects of shaft internal pressure, external extrusion, drilling impact load and the like after shallow stratum well cementation in an oil and gas well can be borne, and the functional requirements of shallow metal-sleeve-free well cementation in the oil and gas well are met.
本发明涉及一种固井水泥浆体系及其制备方法和应用。所述水泥浆体系的制备原料包括：水泥、微粒集料、活性粉末、纳米填充物料、增韧物料、早强剂、减水剂和水。本发明提供的固井水泥浆体系与各种外加剂之间的配伍性较好，且性能稳定，能够满足油气井无金属套管固井施工要求，其所形成的无金属套管固井技术，与常规固井技术相比，价格低廉，节约成本，经凝结硬化后所得到的水泥石，具有较高的抗压强度和抗拉强度，而且还具有较强的韧性，显著提高了水泥石的抗变形能力和抗冲击性，可承受油气井中浅层地层固井后井筒内压、外挤和钻进冲击荷载等作用，满足油气井中浅层无金属套管固井的功能要求。
Well cementation cement slurry system and preparation method and application thereof
一种固井水泥浆体系及其制备方法和应用
LIU RENGGUANG (author) / ZHOU SHIMING (author) / LU PEIQING (author) / MIAO XIA (author) / GAO YUAN (author) / LIU KUI (author)
2023-03-03
Patent
Electronic Resource
Chinese
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