SciDev has filed a patent for a versatile cavitation device that can determine the viscosity and other properties of drilling mud and other fluids at desired temperatures. The device operates in both cavitation and shear modes to mix and heat the fluid, allowing for the determination of viscosity based on shear stress and shear rate. The invention eliminates the need to adjust the rheology of drilling fluid by passing it through the drill bit. The device can be used in a “straight-through” method or in a loop system, and a controller can manage viscosity and other properties by controlling power input and angular rotation. The system can also be used with additional instruments such as a viscometer and density meter. The patent claim describes an apparatus for controlling the preparation of drilling fluid, including a cavitation mixer with transducers for measuring torque and angular velocity. GlobalData’s report on SciDev 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 SciDev, water gas shift catalysts was a key innovation area identified from patents. SciDev's grant share as of June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.

Apparatus for controlling drilling fluid preparation using cavitation mixer

Source: United States Patent and Trademark Office(USPTO). Credit: SciDev Ltd

A recently filed patent (Publication Number: US20230149868A1) describes an apparatus for controlling the preparation of drilling fluid for drilling a well. The apparatus includes a drilling fluid flow loop that incorporates a cavitation mixer. This cavitation mixer is equipped with transducers that generate signals representing torque and angular velocity within the mixer.

The patent also mentions that the cavitation mixer used in the apparatus is a flow-directed cavitation mixer. This type of mixer is designed to optimize the mixing process and ensure efficient fluid preparation for drilling operations.

To enhance control over the fluid viscosity, the apparatus includes a process controller that receives the signals representing torque and angular velocity from the cavitation mixer. The process controller then computes the viscosity of the fluid based on these signals and adjusts the viscosity accordingly. This allows for precise control and optimization of the fluid viscosity during drilling operations.

In addition to the cavitation mixer and process controller, the apparatus includes other components within the fluid flow loop. These components include a density meter and an in-line viscometer, which provide further measurements and data on the fluid properties.

Furthermore, the fluid flow loop incorporates one or more sensors for various parameters such as flow, pH, percent solids, water cut or oil/water ratio, electrical stability, particle size, and temperature. These sensors enable real-time monitoring and control of these important fluid characteristics during the drilling process.

Overall, this patent describes an apparatus that offers improved control over the preparation of drilling fluid for well drilling operations. By utilizing a cavitation mixer, process controller, and various sensors, the apparatus allows for precise adjustment of fluid viscosity and real-time monitoring of important fluid properties. This can lead to more efficient and effective drilling operations, ultimately benefiting the oil and gas industry.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies