The Shaffer Bolt-Cover Spherical BOP is a high-reliability annular pressure control equipment designed for oil and gas drilling operations. As essential well control equipment, it provides stable sealing and pressure control during drilling, tripping, and well intervention processes, effectively mitigating blowout risks to protect personnel, equipment, and the environment.

• Well Pressure Containment: Acts as frontline defense against unexpected wellbore pressure surges, forming a tight seal to prevent blowouts
• Universal Sealing Compatibility: Seals reliably on various downhole tools including kellys, drill pipes, tool joints, drill collars, casing, and wireline tools
• Pressurized Tripping Operations: Enables safe tripping of drill strings in and out of the wellbore under pressure
• Harsh Environment Adaptability: Suitable for internal H2S service as standard, with straightforward conversion for external H2S service; Arctic models available for low-temperature API 16A requirements

• Compact & Space-Saving Design: 15-20% lower height than comparable annular BOPs, ideal for installations with limited vertical space
• Efficient & Cost-Effective Operation: Operates at low hydraulic pressure of 1,500 psi, reducing accumulator size and costs
• Durable & Low-Maintenance: Wear rings eliminate metal-to-metal contact; rugged sealing element lasts 2-4 times longer than conventional elements
• Easy Servicing & Field Adaptability: Upper housing lifts off easily for access; no complex tools required for routine servicing