07066258 is referenced by 115 patents and cites 451 patents.

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.

Title
Reduced-density proppants and methods of using reduced-density proppants to enhance their transport in well bores and fractures
Application Number
10/615543
Publication Number
7066258 (B2)
Application Date
July 8, 2003
Publication Date
June 27, 2006
Inventor
Philip D Nguyen
Duncan
OK, US
Bradley L Todd
Duncan
OK, US
Donald Justus
Houston
TX, US
Agent
Baker Botts
Robert A Kent
Assignee
Halliburton Energy Services
OK, US
IPC
E21B 43/267
E21B 43/04
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