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A platform for research: civil engineering, architecture and urbanism
Composite material as well as preparation method and application thereof
The invention relates to the technical field of well cementation additive materials, and discloses a composite material and a preparation method and application thereof. The composite material comprises a solid core, an elastic middle layer and a shell layer, wherein the solid core is coated with the elastic middle layer, and the elastic middle layer is coated with the shell layer; wherein the density of the solid core is 8-15g/cm < 3 >, the elastic modulus of the elastic middle layer is not less than 1GPa, and the Poisson's ratio is 0.35-0.5; the shell layer can resist the temperature of 180 DEG C or above and can resist the pressure of 70 MPa or above. The composite material can emit sound waves in a specific frequency band under different stress conditions, and the position and stress intensity of an abnormal stress point can be obtained according to sound wave frequency band characteristics obtained through sound wave logging.
本发明涉及固井添加剂材料技术领域，公开了复合材料及其制备方法和应用。所述复合材料包括：固体核芯、包覆在所述固体核芯外的弹性中间层和包覆在所述弹性中间层外的外壳层；其中，所述固体核芯的密度为8‑15g/cm3，所述弹性中间层的弹性模量不小于1GPa，泊松比为0.35‑0.5；所述外壳层的耐温达180℃以上，抗压达70MPa以上。本发明的复合材料在不同应力条件下会发出特定频段的声波，依据声波测井获得的声波频段特征，可以获得异常应力点的位置和应力强度。
Composite material as well as preparation method and application thereof
The invention relates to the technical field of well cementation additive materials, and discloses a composite material and a preparation method and application thereof. The composite material comprises a solid core, an elastic middle layer and a shell layer, wherein the solid core is coated with the elastic middle layer, and the elastic middle layer is coated with the shell layer; wherein the density of the solid core is 8-15g/cm < 3 >, the elastic modulus of the elastic middle layer is not less than 1GPa, and the Poisson's ratio is 0.35-0.5; the shell layer can resist the temperature of 180 DEG C or above and can resist the pressure of 70 MPa or above. The composite material can emit sound waves in a specific frequency band under different stress conditions, and the position and stress intensity of an abnormal stress point can be obtained according to sound wave frequency band characteristics obtained through sound wave logging.
本发明涉及固井添加剂材料技术领域，公开了复合材料及其制备方法和应用。所述复合材料包括：固体核芯、包覆在所述固体核芯外的弹性中间层和包覆在所述弹性中间层外的外壳层；其中，所述固体核芯的密度为8‑15g/cm3，所述弹性中间层的弹性模量不小于1GPa，泊松比为0.35‑0.5；所述外壳层的耐温达180℃以上，抗压达70MPa以上。本发明的复合材料在不同应力条件下会发出特定频段的声波，依据声波测井获得的声波频段特征，可以获得异常应力点的位置和应力强度。
Composite material as well as preparation method and application thereof
复合材料及其制备方法和应用
GUO XIAO (author) / PANG WEI (author) / ZHANG TONGYI (author) / AI SHUANG (author) / MAO JUN (author)
2024-07-05
Patent
Electronic Resource
Chinese
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