A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Well cementation cement paste and application thereof in well cementation of stratum containing natural gas hydrate
The invention provides well cementation cement slurry and application thereof in well cementation of a stratum containing natural gas hydrate.The well cementation cement slurry is prepared from, by mass, 100 parts of oil well cement, 10-50 parts of a low-temperature early strength material, 5-30 parts of a solid-solid phase change heat absorbent and 30-50 parts of a lightening agent. The low-temperature low-hydration-heat well cementation cement slurry system has the characteristics of low-temperature early strength, low hydration heat, low density, low water loss, channeling prevention and the like, and meanwhile, the development of the thickening time and the compressive strength also meets the field well cementation construction requirements. The low-temperature low-hydration-heat well cementation cement slurry system is especially suitable for deepwater well cementation operation of a natural gas hydrate-containing stratum.
本发明提供了一种固井水泥浆及其在含天然气水合物地层固井中的应用，以质量份数计，该固井水泥浆的原料包括：油井水泥100份，低温早强材料10‑50份，固‑固相变吸热剂5‑30份，减轻剂30‑50份。本发明的低温低水化热固井水泥浆体系兼具低温早强、低水化热、低密度、低失水量、防窜等特性，同时稠化时间以及抗压强度的发展也满足现场固井施工要求。该低温低水化热固井水泥浆体系尤其适用于含天然气水合物地层的深水固井作业。
Well cementation cement paste and application thereof in well cementation of stratum containing natural gas hydrate
The invention provides well cementation cement slurry and application thereof in well cementation of a stratum containing natural gas hydrate.The well cementation cement slurry is prepared from, by mass, 100 parts of oil well cement, 10-50 parts of a low-temperature early strength material, 5-30 parts of a solid-solid phase change heat absorbent and 30-50 parts of a lightening agent. The low-temperature low-hydration-heat well cementation cement slurry system has the characteristics of low-temperature early strength, low hydration heat, low density, low water loss, channeling prevention and the like, and meanwhile, the development of the thickening time and the compressive strength also meets the field well cementation construction requirements. The low-temperature low-hydration-heat well cementation cement slurry system is especially suitable for deepwater well cementation operation of a natural gas hydrate-containing stratum.
本发明提供了一种固井水泥浆及其在含天然气水合物地层固井中的应用，以质量份数计，该固井水泥浆的原料包括：油井水泥100份，低温早强材料10‑50份，固‑固相变吸热剂5‑30份，减轻剂30‑50份。本发明的低温低水化热固井水泥浆体系兼具低温早强、低水化热、低密度、低失水量、防窜等特性，同时稠化时间以及抗压强度的发展也满足现场固井施工要求。该低温低水化热固井水泥浆体系尤其适用于含天然气水合物地层的深水固井作业。
Well cementation cement paste and application thereof in well cementation of stratum containing natural gas hydrate
一种固井水泥浆及其在含天然气水合物地层固井中的应用
WANG CHENGWEN (author) / XIA DONG (author) / XUE YUCHENG (author) / XU HONGZHI (author) / XIA YUANBO (author) / WANG ECHUAN (author) / XI FANGZHU (author) / WANG ZHENXIAO (author)
2024-04-26
Patent
Electronic Resource
Chinese
Well cementation cement paste used for aquo-complex-containing stratum
| European Patent Office | 2015
| European Patent Office | 2023