A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low-temperature expanding agent for well cementation cement slurry and preparation method of low-temperature expanding agent
The invention belongs to the technical field of oil and gas exploitation well cementation cement slurry, and particularly relates to a low-temperature expanding agent for well cementation cement slurry and a preparation method thereof. The low-temperature expanding agent for the well cementation cement slurry is prepared from the following components in parts by weight: 25 to 35 parts of gypsum, 5 to 10 parts of anhydrous sodium sulphate, 20 to 30 parts of expanding clinker and 40 to 50 parts of polyacrylamide. According to the low-temperature expanding agent, the gypsum, the anhydrous sodium sulphate, the expanding clinker and the polyacrylamide are compounded and have a synergistic effect, under the condition that the basic performance of oil well cement paste is not affected, set cement can achieve large expansion amount under the low-temperature condition, the cementation strength of the set cement is improved, and the low-temperature expanding agent has good applicability on the whole.
本发明属于油气开采固井水泥浆技术领域，具体涉及一种用于固井水泥浆的低温膨胀剂及其制备方法。本发明的用于固井水泥浆的低温膨胀剂，由以下重量份的组分组成：生石膏25~35份、元明粉为5~10份、膨胀熟料为20~30份、聚丙烯酰胺40~50份。该低温膨胀剂通过生石膏、元明粉、膨胀熟料、聚丙烯酰胺进行复配协同作用，在不影响油井水泥浆基本性能的情况下，使水泥石在低温条件下便可实现较大的膨胀量，且提高了水泥石胶结强度，整体上具有良好的应用性。
Low-temperature expanding agent for well cementation cement slurry and preparation method of low-temperature expanding agent
The invention belongs to the technical field of oil and gas exploitation well cementation cement slurry, and particularly relates to a low-temperature expanding agent for well cementation cement slurry and a preparation method thereof. The low-temperature expanding agent for the well cementation cement slurry is prepared from the following components in parts by weight: 25 to 35 parts of gypsum, 5 to 10 parts of anhydrous sodium sulphate, 20 to 30 parts of expanding clinker and 40 to 50 parts of polyacrylamide. According to the low-temperature expanding agent, the gypsum, the anhydrous sodium sulphate, the expanding clinker and the polyacrylamide are compounded and have a synergistic effect, under the condition that the basic performance of oil well cement paste is not affected, set cement can achieve large expansion amount under the low-temperature condition, the cementation strength of the set cement is improved, and the low-temperature expanding agent has good applicability on the whole.
本发明属于油气开采固井水泥浆技术领域，具体涉及一种用于固井水泥浆的低温膨胀剂及其制备方法。本发明的用于固井水泥浆的低温膨胀剂，由以下重量份的组分组成：生石膏25~35份、元明粉为5~10份、膨胀熟料为20~30份、聚丙烯酰胺40~50份。该低温膨胀剂通过生石膏、元明粉、膨胀熟料、聚丙烯酰胺进行复配协同作用，在不影响油井水泥浆基本性能的情况下，使水泥石在低温条件下便可实现较大的膨胀量，且提高了水泥石胶结强度，整体上具有良好的应用性。
Low-temperature expanding agent for well cementation cement slurry and preparation method of low-temperature expanding agent
一种用于固井水泥浆的低温膨胀剂及其制备方法
ZHANG JUNYI (author) / LIU YONGLUN (author) / LIU FU (author) / HAN JING (author) / HE BINBIN (author) / ZHENG WENWU (author) / LI JI (author) / ZHANG XIANGGUANG (author) / LI XINCHANG (author)
2023-10-27
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
| European Patent Office | 2020
| European Patent Office | 2023