Liberty Energy has patented a proppant dispensing system for hydraulic fracturing operations. The system includes proppant containers with tipping mechanisms for controlled discharge, a central hopper, conveyor belt system, blending unit, and elevator conveyor for efficient proppant transportation. GlobalData’s report on Liberty Energy gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Liberty Energy, Oil well fracking was a key innovation area identified from patents. Liberty Energy's grant share as of February 2024 was 73%. Grant share is based on the ratio of number of grants to total number of patents.

Proppant container system for hydraulic fracturing operations

Source: United States Patent and Trademark Office (USPTO). Credit: Liberty Energy Inc

A newly granted patent (Publication Number: US11867044B2) discloses a proppant dispensing system designed to efficiently handle proppant materials used in hydraulic fracturing operations. The system comprises a plurality of proppant container systems, each consisting of a proppant container with a frame supporting a reservoir for the proppant. The system includes a cradle for retaining the container, a support frame allowing tipping motion for proppant flow, tipping mechanisms for controlled tipping, a central hopper for receiving proppant, a conveyor belt system, a blending unit, and an elevator conveyor with a metering system for proppant transfer.

The patent details various aspects of the proppant dispensing system, including the design of the proppant containers with solid bottoms and cylindrical sidewalls, the structure of the cradles for tipping motion, the use of tipping mechanisms with actuators for controlled tipping, and additional features like insulation for the containers. The system also incorporates means for determining proppant discharge, such as load cells and empirical correlations based on input parameters like time and moisture content. Furthermore, the system includes a surge hopper for proppant transfer and can be configured with multiple container systems and conveyor belt orientations for enhanced efficiency in handling proppant materials during hydraulic fracturing operations.

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GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.