A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Surface-modified hollow glass beads, preparation method thereof and high-temperature high-strength low-density cement paste
The invention provides a surface-modified hollow glass bead, a preparation method thereof and high-temperature high-strength low-density cement paste. The preparation method comprises the following steps: carrying out alkali etching on hollow glass beads, and preparing into a solution; adding a silane coupling agent into the solution, then mixing with an acylamino monomer containing a carbon-carbon double bond and a phosphate ester monomer containing the carbon-carbon double bond, adding an initiator for reaction, adding a polymerization inhibitor, washing and spray-drying to obtain the surface-modified hollow glass beads. The invention also provides high-temperature high-strength low-density cement paste prepared on the basis of the surface-modified hollow glass beads. The high-temperature-resistant, high-strength and low-density cement paste provided by the invention is adjustable in density, high in compressive strength, low in API (American Petroleum Institute) water loss, good in rheological property, zero in free liquid and small in density difference; powerful technical support can be provided for reducing the well leakage risk in the well cementation construction process, ensuring the difficult-to-use reserves of complex deep deep wells and ultra-deep wells and the exploration and development benefits of unconventional oil and gas resources and the like.
本发明提供了一种表面修饰空心玻璃微珠及其制备方法与高温高强低密度水泥浆。该制备方法包括：对空心玻璃微珠进行碱刻蚀，并配置成溶液；向溶液中加入硅烷偶联剂，然后与含碳‑碳双键的酰胺基单体、含碳‑碳双键的磷酸酯类单体混合，加入引发剂进行反应，加入阻聚剂，经过洗涤、喷雾干燥得到所述表面修饰空心玻璃微珠。本发明还提供了基于上述表面修饰空心玻璃微珠制备的高温高强低密度水泥浆。本发明所提供的抗高温高强度低密度水泥浆的密度可调，抗压强度高，API失水量少、流变性能好、游离液为0、密度差小；能够为降低固井施工过程中的井漏风险，保证复杂深层深井超深井难动用储量和非常规油气资源的勘探开发效益等提供有力的技术支撑。
Surface-modified hollow glass beads, preparation method thereof and high-temperature high-strength low-density cement paste
The invention provides a surface-modified hollow glass bead, a preparation method thereof and high-temperature high-strength low-density cement paste. The preparation method comprises the following steps: carrying out alkali etching on hollow glass beads, and preparing into a solution; adding a silane coupling agent into the solution, then mixing with an acylamino monomer containing a carbon-carbon double bond and a phosphate ester monomer containing the carbon-carbon double bond, adding an initiator for reaction, adding a polymerization inhibitor, washing and spray-drying to obtain the surface-modified hollow glass beads. The invention also provides high-temperature high-strength low-density cement paste prepared on the basis of the surface-modified hollow glass beads. The high-temperature-resistant, high-strength and low-density cement paste provided by the invention is adjustable in density, high in compressive strength, low in API (American Petroleum Institute) water loss, good in rheological property, zero in free liquid and small in density difference; powerful technical support can be provided for reducing the well leakage risk in the well cementation construction process, ensuring the difficult-to-use reserves of complex deep deep wells and ultra-deep wells and the exploration and development benefits of unconventional oil and gas resources and the like.
本发明提供了一种表面修饰空心玻璃微珠及其制备方法与高温高强低密度水泥浆。该制备方法包括：对空心玻璃微珠进行碱刻蚀，并配置成溶液；向溶液中加入硅烷偶联剂，然后与含碳‑碳双键的酰胺基单体、含碳‑碳双键的磷酸酯类单体混合，加入引发剂进行反应，加入阻聚剂，经过洗涤、喷雾干燥得到所述表面修饰空心玻璃微珠。本发明还提供了基于上述表面修饰空心玻璃微珠制备的高温高强低密度水泥浆。本发明所提供的抗高温高强度低密度水泥浆的密度可调，抗压强度高，API失水量少、流变性能好、游离液为0、密度差小；能够为降低固井施工过程中的井漏风险，保证复杂深层深井超深井难动用储量和非常规油气资源的勘探开发效益等提供有力的技术支撑。
Surface-modified hollow glass beads, preparation method thereof and high-temperature high-strength low-density cement paste
一种表面修饰空心玻璃微珠及其制备方法与高温高强低密度水泥浆
LYU BIN (author) / ZHANG HUA (author) / ZHANG CHI (author) / LIU ZISHUAI (author) / QU CONGFENG (author) / YU YONGJIN (author) / DING ZHIWEI (author) / ZHOU CHONGFENG (author) / ZHANG WEI (author) / ZHANG XIAOBING (author)
2024-04-09
Patent
Electronic Resource
Chinese
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