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发明授权
US07066258B2 Reduced-density proppants and methods of using reduced-density proppants to enhance their transport in well bores and fractures 失效
减少密度的支撑剂和使用减少密度的支撑剂来增强其在井眼和骨折中的运输的方法

Reduced-density proppants and methods of using reduced-density proppants to enhance their transport in well bores and fractures
摘要：
The present invention provides reduced-density coated particulates and methods for enhancing the transport of such particulates into well bores and fractures, and for enhancing the conductivity and permeability of subterranean formations using such particulates, and for sand control treatments using such particulates. The reduced-density, coated particulates of the present invention generally comprise particulate having a surface and a coating wherein the surface comprises a porous or partially hollow geometry and coating is capable of trapping a fluid between the particulate's surface and the coating.
摘要（中）：

本发明提供了减少密度的涂覆颗粒和用于增强这些颗粒进入井眼和裂缝的方法，以及使用这种颗粒增强地下地层的导电性和渗透性，以及使用这种颗粒进行防砂处理。 本发明的降低密度的涂覆颗粒通常包括具有表面和涂层的颗粒，其中表面包括多孔或部分中空的几何形状，并且涂层能够在颗粒的表面和涂层之间捕获流体。

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