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A platform for research: civil engineering, architecture and urbanism
Wide-temperature-zone well cementation expanding agent and well cementation expanding cement slurry system containing same
The invention provides a wide-temperature-range well cementation expanding agent and a well cementation expanding cement slurry system containing the same. The expanding agent for well cementation in the wide temperature range comprises the following components in percentage by weight: 5-20% of halloysite, 20-50% of a magnesium raw material, 10-40% of a calcium raw material, 5-10% of a modified material and 10-30% of a carbon raw material, wherein the total weight of the halloysite, the magnesium raw material, the calcium raw material, the modified material and the carbon raw material is 100%. The expanding cement slurry system for well cementation contains the expanding agent for well cementation in the wide temperature range. The expanding agent for well cementation in the wide temperature range and the expanding cement paste system containing the expanding agent for well cementation are wide in applicable temperature range and good in cementation performance, the expansion performance and compressive strength of set cement are improved, set cement is prevented from shrinking and cracking, it can be guaranteed that the set cement has long-term cementation sealing performance, and the service life of the set cement is prolonged. The method is of great significance in improving a well cementation weak interface, improving well cementation quality and guaranteeing the integrity of an oil and gas well shaft.
本发明提供了一种宽温带固井用膨胀剂及含其的固井用膨胀水泥浆体系。以所述宽温带固井用膨胀剂的总重量为100％计，其包括以下成分：埃洛石5‑20％、镁质原料20‑50％、钙质原料10‑40％、改性材料5‑10％以及碳质原料10‑30％。该固井用膨胀水泥浆体系含有所述的宽温带固井用膨胀剂。本发明提供的宽温带固井用膨胀剂及含其的固井用膨胀水泥浆体系，适用温度范围广、胶结性能好，提高了水泥石的膨胀性能和抗压强度，防止水泥石收缩和开裂，能够保证水泥石具有长期胶结密封性能，对于改善固井弱界面、提高固井质量、保证油气井井筒完整性具有重要意义。
Wide-temperature-zone well cementation expanding agent and well cementation expanding cement slurry system containing same
The invention provides a wide-temperature-range well cementation expanding agent and a well cementation expanding cement slurry system containing the same. The expanding agent for well cementation in the wide temperature range comprises the following components in percentage by weight: 5-20% of halloysite, 20-50% of a magnesium raw material, 10-40% of a calcium raw material, 5-10% of a modified material and 10-30% of a carbon raw material, wherein the total weight of the halloysite, the magnesium raw material, the calcium raw material, the modified material and the carbon raw material is 100%. The expanding cement slurry system for well cementation contains the expanding agent for well cementation in the wide temperature range. The expanding agent for well cementation in the wide temperature range and the expanding cement paste system containing the expanding agent for well cementation are wide in applicable temperature range and good in cementation performance, the expansion performance and compressive strength of set cement are improved, set cement is prevented from shrinking and cracking, it can be guaranteed that the set cement has long-term cementation sealing performance, and the service life of the set cement is prolonged. The method is of great significance in improving a well cementation weak interface, improving well cementation quality and guaranteeing the integrity of an oil and gas well shaft.
本发明提供了一种宽温带固井用膨胀剂及含其的固井用膨胀水泥浆体系。以所述宽温带固井用膨胀剂的总重量为100％计，其包括以下成分：埃洛石5‑20％、镁质原料20‑50％、钙质原料10‑40％、改性材料5‑10％以及碳质原料10‑30％。该固井用膨胀水泥浆体系含有所述的宽温带固井用膨胀剂。本发明提供的宽温带固井用膨胀剂及含其的固井用膨胀水泥浆体系，适用温度范围广、胶结性能好，提高了水泥石的膨胀性能和抗压强度，防止水泥石收缩和开裂，能够保证水泥石具有长期胶结密封性能，对于改善固井弱界面、提高固井质量、保证油气井井筒完整性具有重要意义。
Wide-temperature-zone well cementation expanding agent and well cementation expanding cement slurry system containing same
一种宽温带固井用膨胀剂及含其的固井用膨胀水泥浆体系
ZHANG JIAYING (author) / JIN JIANZHOU (author) / HUANG PINGHUI (author) / ZHOU JINGHONG (author) / ZHANG HUA (author) / YU YONGJIN (author) / ZHANG CHI (author) / ZHANG XIAOBING (author) / XIAO ZHENHUA (author) / QI FENGZHONG (author)
2024-03-08
Patent
Electronic Resource
Chinese
| European Patent Office | 2023
Well cementation cement slurry composition and well cementation cement slurry
| European Patent Office | 2022
| European Patent Office | 2023