| Customization: | Available |
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| After-sales Service: | Online Technical Support |
| Manufacturing Process: | CNC Milling |
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| Size | 2.313″ | 2.813″ | 3.813″ |
| Material | N80/1Cr-L80/3Cr-L80/13Cr-L80 | ||
| OD | 5.000″(127.00mm) | 5.700″(144.80mm) | 7.350″(186.69mm) |
| Min ID | 2.313″( 58.75mm) | 2.813″( 71.45mm) | 3.813″(96.85mm) |
| Pressure | 10000psi | ||
| Temperature | 175ºC | ||
| Mandrel | Type X or F. Can be seated in corresponding plug | ||
| Initial Ground Opening Pressure | 1200psi | ||
| Ground Fully Open Pressure | 2000psi | ||
| Minimum Closing Pressure | 800psi | ||
| Standards | API 14A-2015 12nd | ||
| Pipeline Interface | 1/4″ JAM NUT buckle. Equipped with a protective plug. Each set of safety valves is equipped with a set of 1/4" control pipeline connectors, metal-to-metal seal |
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| Maximum Immersion Depth | 650m | ||
| Type | API or VAMTOP, Customized | ||
| Lock Open Method | Insert the SDLT special service tool to permanently lock the valve disc in the open position | ||
| Connector | Metal to Metal Seals | ||
Industry-Leading Certifications for Compliance
1. Onshore & Offshore Drilling Operations
It integrates into drilling systems to control downhole pressure during wellbore construction. Specifically, it works with drilling strings, top drives, and kelly valves to regulate fluid flow between the drill pipe and wellbore, preventing overpressure buildup. This is critical in high-pressure reservoirs (up to 10,000 PSI) where sudden pressure surges could risk blowouts.
2. Wellhead & Christmas Tree Systems
As a key component of wellhead equipment, it connects to casing heads, tubing heads, and X-mas trees. It manages fluid flow between the wellbore and surface facilities during production, enabling safe start-up, shutdown, or adjustments to production rates. Its full opening design ensures unobstructed flow when open, optimizing oil/gas extraction efficiency.
3. Well Intervention & Workover Operations
During well maintenance (e.g., cleaning, repair, or stimulation), the valve controls pressure in the wellbore. It pairs with workover rigs, swabbing tools, and fishing tools to isolate sections of the well, allowing safe intervention without disrupting the entire system. Its reliable sealing prevents fluid leakage during tool insertion or retrieval.
4. Pressure Control Systems
It works in tandem with blowout preventers (BOPs), choke & kill manifolds, and pressure hoses to form a comprehensive pressure management network. In emergency scenarios, it shuts off flow quickly to mitigate blowout risks, making it a core safety component in high-risk downhole environments.
5. Geologic Exploration & Reservoir Testing
In exploratory drilling for oil, gas, or geothermal resources, the valve regulates fluid flow during reservoir testing. It withstands extreme temperatures (rated for L, N, P, S, T, U, V) and corrosive downhole fluids (supported by FF-grade alloy material), ensuring accurate data collection in harsh subsurface conditions.
6. Oilfield Manifolds & Pipeline Networks
It integrates into production manifolds and pipeline systems to control flow between wellbores and processing facilities. Its compatibility with API 6A standards allows seamless connection to other oilfield equipment (e.g., spools, flanges, and unions), supporting modular system design in both onshore fields and offshore platforms.
7. High-Pressure Downhole Environments
Designed for extreme pressure (10,000 PSI) and diverse temperature ranges, it is ideal for deep well drilling, high-pressure/high-temperature (HPHT) reservoirs, and sour gas fields (where corrosion resistance is critical). Its FF alloy construction and API PSL3 compliance ensure durability in these demanding settings.
Why Choose Our FOSV?
At Besdrill, we are committed to delivering excellence in every component we manufacture, and our FOSV are no exception. Here's why customers worldwide choose our solutions:
1.Quality & Compliance
Our products adhere to stringent international standards, including API 6A, API 16A, API 16C, API Q1, and ISO 9001, ensuring reliability in high-pressure, high-temperature (HPHT) and harsh downhole environments. Their commitment to quality is reflected in certifications like PSL (Product Specification Level) 1 to PSL3, meeting the rigorous demands of global oil and gas operators.
2.Service Philosophy
Our positions itself as a "one-stop source" for oilfield equipment, offering end-to-end solutions from wellhead to drill bit. With a dedicated team of technical experts, production specialists, and 365/24 after-sales support, the company prioritizes responsive service-from customization of equipment to on-site maintenance-ensuring seamless operations for clients worldwide.
3.Global Reach
Our serves clients across international markets, leveraging its expertise in upstream to downstream solutions to support oil and gas projects globally. Their focus on balancing quality, value, and customer-centricity has established them as a trusted partner in the industry, driving efficiency and safety in drilling, production, and well intervention operations.
In addition to providing you with FOSV, we can also offer you other types of water well drilling. For more information, please consult us.
1.What makes this tungsten-plated oil casing different from conventional casing?
This casing stands out due to its specialized tungsten plating (≥30μm thickness, 450-550HV hardness), which enhances wear resistance and provides exceptional protection against corrosive media like chloride ions, H2S, and CO2. Unlike conventional casing, it excels in harsh environments (e.g., geothermal wells, high-corrosion wells) while maintaining structural strength via high-grade steels (J55, N80, etc.).
2.Which steel grade should I choose for my project?
The choice depends on your well's pressure, temperature, and mechanical stress requirements:
J55/N80: Suitable for conventional oil/gas wells with moderate pressure.
L80: Ideal for wells with higher temperature stability needs.
P110: Recommended for high-pressure, high-stress environments (e.g., deep gas wells).
3.Is internal plating sufficient, or should I opt for internal & external plating?
Internal plating works for scenarios where internal wear/corrosion (e.g., fluid flow, sediment) is the primary concern. For wells with external corrosion risks (e.g., contact with corrosive formation fluids), internal & external plating provides full protection.
4.What thread type is best for my downhole tools?
EUE/NUE threads: Compatible with standard downhole equipment in most conventional wells.
Special threads: Recommended for high-pressure, high-temperature (HPHT) wells or projects requiring enhanced sealing to prevent leaks.
5.How long does the casing typically last in corrosive environments?
Thanks to its anti-corrosion plating and high-grade steel, service life is significantly extended compared to unplated casing. In highly corrosive wells (e.g., with H2S/CO2), it can last 2-3 times longer than conventional options, reducing replacement frequency.
6.Is the product compliant with international standards?
Yes, our casing meets API (American Petroleum Institute) standards for material strength, thread precision, and performance. It undergoes rigorous testing (pressure, corrosion resistance, hardness) to ensure compliance.
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