Dril-Quip has filed a patent for a system that includes a tubing hanger designed to support a tubing string in a wellhead assembly. The tubing hanger features a bore with a valve that controls the flow of fluid through it. The valve includes an electrical actuator that can open or close the valve in response to electrical signals. GlobalData’s report on Dril-Quip 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 Dril-Quip, underwater drilling platforms was a key innovation area identified from patents. Dril-Quip'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.
A patent for an electrical actuator-controlled valve in a tubing hanger
A recently filed patent (Publication Number: US20230175351A1) describes a system for controlling the flow of fluid in a wellhead assembly. The system includes a tubing hanger that supports a tubing string and has a bore extending through it. The key component of the system is a valve that is positioned along the bore of the tubing hanger. The valve is designed to control the flow of fluid through the bore and is operated by an electrical actuator.
The electrical actuator, which may include an electric motor, is located within the tubing hanger and is responsible for opening or closing the valve in response to electrical signals. The actuator consists of a motor shaft that is rotationally coupled to the electric motor. The rotation of the motor shaft is transferred to a spindle through a gear assembly. The spindle is responsible for shifting the valve between an open position and a closed position.
The valve itself is a gate valve and includes an upper seat and a lower seat within the bore of the tubing hanger. The gate, which has one or more openings, is positioned between the upper and lower seats. When the valve is in the open position, the openings in the gate align with flow paths in the upper and lower seats, allowing fluid to flow through the bore. When the valve is closed, the openings in the gate do not align with the flow paths, preventing fluid from passing through.
The spindle is threadedly coupled to the gate, allowing for linear movement of the gate. Rotation of the spindle in one direction unthreads the gate, causing it to shift away from the spindle and close the valve. Rotation in the opposite direction threads the gate further onto the spindle, causing it to shift towards the spindle and open the valve.
The gear assembly, which includes a worm and a worm gear, facilitates the transfer of rotation from the motor shaft to the spindle. The worm engages the worm gear, causing rotation of the worm to result in rotation of the worm gear.
Overall, this patent describes a system that utilizes an electrical actuator to control the operation of a valve in a tubing hanger. The system allows for precise control of fluid flow in a wellhead assembly, providing potential benefits in terms of efficiency and safety.
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