Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Well cementation cement slurry composition and well cementation cement slurry
The invention provides a well cementation cement slurry composition and well cementation cement slurry. The well cementation cement slurry composition comprises oil well cement and microcrystalline quartz. The well cementation cement slurry comprises the well cementation cement slurry composition and an optional treatment agent for well cementation. When the well cementation cement paste is applied to a steam injection well or other high-temperature and high-pressure deep wells in heavy oil thermal recovery, set cement has excellent high-temperature resistance under early-stage maintenance (80 DEG C * 7d, 0.1 MPa) and ultrahigh temperature and high pressure (350 DEG C * 90d, 21MPa). The problems of low compressive strength, poor durability and the like of an existing sand-adding oil well cement system at ultrahigh temperature can be solved. In addition, the microcrystalline quartz provides a new thought for research and development of the cement-based high-temperature well cementation material.
本发明提供了一种固井水泥浆组合物及固井水泥浆。所述固井水泥浆组合物包括油井水泥和微晶石英。所述固井水泥浆包括固井水泥浆组合物和任选的固井用处理剂。本发明的固井水泥浆应用于稠油热采中的注汽井或其他高温高压深井时，在前期养护(80℃×7d,0.1MPa)和超高温高压下(350℃×90d,21MPa)水泥石具有优异的耐高温性能。本发明可以解决现有加砂油井水泥体系在超高温下抗压强度低，耐久性差等问题。此外，微晶石英的使用为水泥基高温固井材料的研发提供了新的思路。
Well cementation cement slurry composition and well cementation cement slurry
The invention provides a well cementation cement slurry composition and well cementation cement slurry. The well cementation cement slurry composition comprises oil well cement and microcrystalline quartz. The well cementation cement slurry comprises the well cementation cement slurry composition and an optional treatment agent for well cementation. When the well cementation cement paste is applied to a steam injection well or other high-temperature and high-pressure deep wells in heavy oil thermal recovery, set cement has excellent high-temperature resistance under early-stage maintenance (80 DEG C * 7d, 0.1 MPa) and ultrahigh temperature and high pressure (350 DEG C * 90d, 21MPa). The problems of low compressive strength, poor durability and the like of an existing sand-adding oil well cement system at ultrahigh temperature can be solved. In addition, the microcrystalline quartz provides a new thought for research and development of the cement-based high-temperature well cementation material.
本发明提供了一种固井水泥浆组合物及固井水泥浆。所述固井水泥浆组合物包括油井水泥和微晶石英。所述固井水泥浆包括固井水泥浆组合物和任选的固井用处理剂。本发明的固井水泥浆应用于稠油热采中的注汽井或其他高温高压深井时，在前期养护(80℃×7d,0.1MPa)和超高温高压下(350℃×90d,21MPa)水泥石具有优异的耐高温性能。本发明可以解决现有加砂油井水泥体系在超高温下抗压强度低，耐久性差等问题。此外，微晶石英的使用为水泥基高温固井材料的研发提供了新的思路。
Well cementation cement slurry composition and well cementation cement slurry
一种固井水泥浆组合物及固井水泥浆
ZHOU SHIMING (Autor:in) / YAO XIAO (Autor:in) / WANG XIAOJING (Autor:in) / MIAO XIA (Autor:in) / CHU YONGTAO (Autor:in)
03.05.2022
Patent
Elektronische Ressource
Chinesisch
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