Drill Pipe Upper And Lower Safety Kelly Valve API Standard For Oilfield

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Product overview:

Oilfield drilling equipment Kelly valve, also known as Kelly plug valve, is a manual control valve in the drill string circulation system. It is an important well control equipment installed at the upper or lower end of the Kelly. It is mainly used to control the wellhead pressure and prevent blowouts during drilling operations.

The Kelly Valve produced and sold by our company Huichi petro is made of alloy steel or cast steel and other materials, with high strength and durability. Through manual operation, it can be opened or closed by rotating the handle to control the flow of fluid in the drill pipe.

The Kelly valve is divided into an upper Kelly plug valve and a lower Kelly plug valve. The upper Kelly plug valve is connected between the lower end of the faucet and the upper end of the Kelly, usually with a left-hand connection; the lower Kelly plug valve is connected between the lower end of the Kelly and the upper end of the drill pipe or the drill pipe protection joint, usually with a right-hand connection.

The operation of the Kelly valve is very simple. It can be opened or closed by turning 90 degrees with a special wrench as required. In drilling operations, in order to avoid the occurrence of vicious blowout accidents, Kelly plug valves are usually assembled at the upper and lower ends of the Kelly to ensure that the fluid flow can be quickly cut off in an emergency.

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Structural composition:

The Kelly Valve produced and sold by our company Huichi petro consists of a shell, upper and lower valve seats, a ball, a rotary switch, a sealing ring, a spring and a clamping cap. We can also customize it according to the specific needs of customers, including customized services in terms of size, material, pressure level, etc., to meet the personalized needs of different customers.

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Working principle:

Open state: During normal drilling operations, the Kelly valve is in the open state, allowing the drilling fluid to circulate smoothly through the Kelly, providing cooling and lubrication for the drill bit, and carrying the cuttings to the ground.

Closed state: When the wellhead has an abnormal pressure increase or an emergency such as a well kick or blowout occurs, the Kelly valve needs to be closed in time. By operating the drive mechanism, the valve core moves to the closed position to block the flow path of the drilling fluid, thereby preventing the wellhead pressure from further increasing and protecting the safety of drilling equipment and personnel.

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Features:

1. Customized connection thread: The connection thread can be processed according to the specific needs of customers.

2. High-efficiency operation characteristics: This plug valve is designed for frequent operation. Its opening and closing action is fast and light, and the resistance of fluid passing through is extremely small. It has a simple structure, excellent sealing performance, small torque required for rotation, and can withstand high pressure. At the same time, it is small in size and light in weight, which is easy to install and maintain.

3. Strict quality control: To ensure product quality, each plug valve must undergo rigorous hydrostatic valve body testing before leaving the factory to ensure product quality.

4. Compliance with international standards: The design and inspection process of the plug valve strictly follows the international standard of APT SPEC 7 to ensure its excellent quality and compliance with industry specifications.

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Application field of Kelly valve:

The Kelly valves produced and sold by our company Huichi petro are mainly used in the oil and gas industry, chemical industry and metallurgical industry.

In the oil and gas industry, Kelly valves can be used to control the flow, pressure and temperature of fluid media such as oil, gas and water.

In the chemical industry, Kelly valves can be used to control the flow of liquids, gases, steam and other media in chemical processes. They are widely used in oil refining, chemical, pharmaceutical, food and other industries, playing an important role in flow control and medium cutoff.

In the metallurgical industry, Kelly valves can also be used to control the flow, pressure and temperature in steel smelting. They are widely used in metallurgy, steel, aluminum and other industries.

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Product model parameters:

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Product display:

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Product package:

Product packaging: iron box or iron frame, wooden pallet, wooden box, bulk or customized according to customer requirements.

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Product detection:

100% inspection will be carried out before shipment, and video image data and inspection reports will be provided.

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Accepted delivery terms:

FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES.

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About HuiChi (HC) petro:

Shandong Huichi Industry & Trade is a professional supplier of drilling equipment for the oil and gas industry. We are committed to providing the best products and services to customers around the world.

We HuiChi (HC) Petro always regard our customers as our partners and aim to achieve long-term cooperation value. Our Huichi products cover different fields such as oil fields, water wells, HDD, etc.

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Why choose HuiChi (HC) petro?

One-stop drilling equipment supply;

Employee engineers have more than 10 years of experience in supplying drilling equipment;

More than 10 people engaged in export business;

More than 40 partner countries and regions;

More than 200 customers having close cooperative relationships;

More than 250+ partner factories as suppliers.

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Focus on well drilling equipment , we have been working hard and hope to become your most professional oil & gas equipment supplier and the best partner!

Sales Manager: Cherry Chi

Email: cherry@huichipetro.com

Mob/WhatsApp/We chat: +86 15553820372