Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-temperature high-strength oil-gas well plugging agent
The invention discloses a low-temperature high-strength oil-gas well plugging agent, and relates to the technical field of petroleum drilling materials. The low-temperature high-strength oil-gas wellplugging agent is prepared from the following raw materials in percentage by mass: 70 to 90 percent of an inorganic gel material, 0 to 0.5 percent of a fiber toughening agent, 1 to 20 percent of a filling material, 1 to 5 percent of an expanding agent, 0.1 to 0.3 percent of a flocculating agent and 0.05 to 0.2 percent of a retarder, wherein the inorganic gel material is sulphoaluminate cement, thefiber length of the fiber toughening agent is less than 12cm, the filling material is calcium carbonate powder and the retarder is a composition of boric acid and D-sodium gluconate. The sulphoaluminate clinker, the active admixture, the water-soluble organic material and other raw materials are adopted, so that the plugging agent has the characteristics of high hour strength development speed, high underwater impact resistance, high acid solubility and good thixotropic property at 10-60 DEG C under a specific ratio, and the plugging purpose is achieved by utilizing the characteristics of theplugging agent.
本发明公开了一种低温高强油气井封堵剂，涉及石油钻井材料技术领域。本发明包括以下按质量百分比计的原料：无机凝胶材料70‑90%，纤维增韧剂0‑0.5%，填充材料1‑20%，膨胀剂1‑5%，絮凝剂0.1‑0.3%，缓凝剂0.05‑0.2%；所述无机凝胶材料为硫铝酸盐水泥；所述纤维增韧剂的纤维长度小于12cm；所述填充材料为碳酸钙粉；所述缓凝剂为硼酸和D‑葡萄糖酸钠的组合。本发明采用硫铝酸盐熟料以及活性外掺料、水溶性有机材料等原料，在特定配比下，使得封堵剂在10‑60℃下，具有小时强度发展快，水下抗冲击能力强、酸溶性强，触变性能好的特性，利用自身特点达到封堵的目的。
Low-temperature high-strength oil-gas well plugging agent
The invention discloses a low-temperature high-strength oil-gas well plugging agent, and relates to the technical field of petroleum drilling materials. The low-temperature high-strength oil-gas wellplugging agent is prepared from the following raw materials in percentage by mass: 70 to 90 percent of an inorganic gel material, 0 to 0.5 percent of a fiber toughening agent, 1 to 20 percent of a filling material, 1 to 5 percent of an expanding agent, 0.1 to 0.3 percent of a flocculating agent and 0.05 to 0.2 percent of a retarder, wherein the inorganic gel material is sulphoaluminate cement, thefiber length of the fiber toughening agent is less than 12cm, the filling material is calcium carbonate powder and the retarder is a composition of boric acid and D-sodium gluconate. The sulphoaluminate clinker, the active admixture, the water-soluble organic material and other raw materials are adopted, so that the plugging agent has the characteristics of high hour strength development speed, high underwater impact resistance, high acid solubility and good thixotropic property at 10-60 DEG C under a specific ratio, and the plugging purpose is achieved by utilizing the characteristics of theplugging agent.
本发明公开了一种低温高强油气井封堵剂，涉及石油钻井材料技术领域。本发明包括以下按质量百分比计的原料：无机凝胶材料70‑90%，纤维增韧剂0‑0.5%，填充材料1‑20%，膨胀剂1‑5%，絮凝剂0.1‑0.3%，缓凝剂0.05‑0.2%；所述无机凝胶材料为硫铝酸盐水泥；所述纤维增韧剂的纤维长度小于12cm；所述填充材料为碳酸钙粉；所述缓凝剂为硼酸和D‑葡萄糖酸钠的组合。本发明采用硫铝酸盐熟料以及活性外掺料、水溶性有机材料等原料，在特定配比下，使得封堵剂在10‑60℃下，具有小时强度发展快，水下抗冲击能力强、酸溶性强，触变性能好的特性，利用自身特点达到封堵的目的。
Low-temperature high-strength oil-gas well plugging agent
一种低温高强油气井封堵剂
ZENG XUELING (Autor:in) / ZHANG YANGYONG (Autor:in) / GU ANLIN (Autor:in)
03.07.2020
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2021