7 1/16″ 5M WP Double Ram BOP | API 16A | 5,000 PSI | CAMTOP

Bore size should match or exceed your largest casing OD plus clearance. For most land rigs, 7 1/16″ is the standard for 4-1/2″ to 5″ drill pipe operations. Pressure rating must exceed your maximum anticipated surface pressure (MASP). The 5,000 psi (5M) working pressure is adequate for most land drilling applications. For higher pressure wells, 10M or 15M rated BOPs are recommended. Always consult your well program and casing design before selecting. CAMTOP offers a detailed Ram BOP selection guide on our website.

The 7 1/16″ Double Ram BOP accommodates the following ram types in both upper and lower cavities:

• Pipe Rams — Seal around specific drill pipe sizes (2 3/8″ through 5 1/2″)
• Blind Rams — Complete wellbore shut-off when no pipe is in the hole
• Shear Rams — Cut through drill pipe and seal the wellbore (available as upgrade)
• Variable Bore Rams (VBR) — Seal on a range of pipe sizes with a single ram set

Yes, all ram types are interchangeable within the same cavity. Rams can be changed on the rig floor in approximately 30–60 minutes. Standard configuration ships with upper pipe rams and lower blind rams. Custom ram configurations are available upon request.

Yes. The CAMTOP 7 1/16″ 5M WP Double Ram BOP follows the Cameron U-type design standard. This means:

• Ram assemblies — Fully interchangeable with Cameron U-type rams
• Seal kits — Standard U-type bonnet gaskets, ram shaft seals, and piston seals
• Flange connections — API R46 flanges compatible with all standard wellhead and BOP stack components
• Side outlets — 2 1/16″ R24 studded outlets match standard choke and kill line fittings

This interchangeability significantly reduces your spare parts inventory cost and ensures you can source replacement components globally.

Ram BOPs use two opposing steel rams with elastomer seals to close around specific pipe sizes or across the open hole. They provide a positive mechanical seal and are the primary well control barrier.

Annular BOPs use a doughnut-shaped rubber element that closes around any pipe size (including irregular shapes like kellys and tool joints). They are more versatile but generally have lower pressure ratings.

Most BOP stacks use both types together: an annular BOP on top for stripping and pipe movement, with ram BOPs below for primary well shut-off. The standard stack configuration is: Annular → Pipe Ram → Blind/Shear Ram. CAMTOP manufactures both types for complete BOP stack solutions.

Yes. The 7 1/16″ 5M WP Double Ram BOP is fully compliant with NACE MR-0175 / ISO 15156 for sulfide stress cracking (SSC) resistance in H2S-containing environments. Key compliance measures include:

• Pressure-containing components (Ram BOP Body, Intermediate Flange) are manufactured from qualified low alloy steel with controlled hardness (max HRC 22)
• All connection studs are AISI 4142 (42CrMo) alloy steel, heat-treated to NACE requirements
• Material certifications with hardness test reports are included in the documentation package
• All elastomer seals are compatible with sour gas service

For extreme H2S concentrations or CO2 service, contact our engineering team for material upgrade recommendations.

Every CAMTOP Double Ram BOP ships with a comprehensive documentation package:

• API 16A Certificate of Conformance — Verifying design and manufacturing compliance
• Material Test Reports (MTR) — Chemical composition and mechanical properties for all pressure-containing parts
• Hardness Test Reports — Per NACE MR-0175 requirements (max HRC 22)
• NDE Reports — Ultrasonic Testing (UT) and Magnetic Particle Inspection (MPI) on critical areas
• Hydrostatic Test Certificate — Shell test at 7,500 psi with pressure chart recording
• Operation Manual — 3 copies with installation, operation, and maintenance procedures
• Spare Parts List — Complete BOM with recommended spare quantities
• Packing List and Commercial Documents — For customs clearance

All documents are traceable to the BOP serial number for your audit records.

Per API 16A and industry best practices (30 CFR 250.737 for offshore operations):

• Before deployment — Full hydrostatic shell test at 7,500 psi and ram function test at 5,000 psi
• Upon installation — Low-pressure (200–300 psi) and high-pressure (rated WP) test on each ram cavity
• Weekly (or per operator policy) — Function test all rams (open/close cycles)
• Every 14 days — Pressure test BOP stack per regulatory requirements
• After each well — Visual inspection, ram seal replacement if indicated
• Every 3–5 years — Complete teardown, NDE, and recertification per API 16A

Always follow your local regulatory requirements and company BOP testing policy. CAMTOP can provide testing procedures and certified recertification services upon request.

Standard lead time: 8–12 weeks from order confirmation for standard configurations. Custom ram sets or material upgrades may add 2–4 weeks.

Express delivery: Available for urgent requirements at 4–6 weeks (subject to production schedule and surcharge).

Shipping: The BOP is securely packed in a welded steel frame or wooden crate with desiccant. Weight: approximately 6,746 lb (3,060 kg) for the main unit. We ship via sea freight (FCL or LCL), air freight (for urgent orders), or road transport depending on destination. CAMTOP handles all export documentation including Certificate of Origin, packing list, and commercial invoice.

Spare parts: In-stock seal kits and ram assemblies ship within 5–7 business days via DHL/FedEx/UPS.

CAMTOP provides a 12-month warranty from the date of shipment (or 2,000 operating hours, whichever comes first) covering manufacturing defects in materials and workmanship. The warranty includes:

• Free replacement or repair of defective components
• Technical support for troubleshooting via phone, email, or video call
• On-site service engineer dispatch for major issues (terms apply)

Extended warranty options up to 36 months are available. The warranty does not cover normal wear items (seals, packers, ram inserts) or damage from improper operation. Full warranty terms are provided with your quotation.

CAMTOP accepts orders from single units — there is no minimum order quantity. We serve operators of all sizes, from single-rig independent drillers to major international drilling contractors. Whether you need one Double Ram BOP, a complete BOP stack (Annular + Ram BOPs), or a full wellhead package, we can accommodate your order. Volume discounts are available for orders of 3+ units or multi-year supply agreements.