FZ7-70 Hydraulic Control Single Ram BOP — 70MPa (10,000 PSI) rated working pressure. Designed for wireline and downhole operations with H2S service capability. Drawing No.: JK21-194.00. Manufactured by CAMTOP.
FZ7-70 Hydraulic Control Single Ram BOP | 70MPa Wireline BOP (JK21-194.00)
Description
FZ7-70 Hydraulic Control Single Ram BOP
Drawing No.: JK21-194.00 | Rated Working Pressure: 70MPa (10,000 PSI)
Product Overview
The FZ7-70 Hydraulic Control Single Ram BOP is a high-performance blowout preventer designed for wireline and downhole operations. It provides reliable well control by sealing the wellbore during emergency conditions, preventing blowout accidents. The BOP features a pipe ram assembly that can safely seal the well with or without wire in the wellbore, offering versatile protection for various well intervention scenarios.
Drawing Number: JK21-194.00
Rated Working Pressure: 70MPa (10,000 PSI)
Body Strength Test Pressure: 105MPa (15,000 PSI)
Design Standards: SY/T7010-2014, GB/T22513-2013, NACE MR0175
Assembly Drawing
FZ7-70 Single Ram BOP General Assembly Drawing (Drawing No.: JK21-194.00)
Key Features
- Hydraulic Control Operation: Remote control via hydraulic system for safe and efficient ram opening/closing
- Manual Locking Mechanism: Right-turn manual locking handle secures rams in closed position during extended operations
- H2S Resistant (EE Level): Suitable for sour service environments per NACE MR0175 standards
- Balance Valve System: Integrated balance valve equalizes pressure across rams before opening, preventing seal damage
- Replaceable Pipe Ram Assemblies: Interchangeable rams available for different wire sizes (5.6mm, 8.0mm and other specifications)
- Bleed-off Valve Assembly: Built-in pressure relief system with stop valve, pressure gauge and quick unions
- Quick Union Connections: NPT 1/2 quick union fittings for hydraulic pipeline connections
- Pressure Test Capability: Dedicated pressure test lifting cap included for field testing
Technical Specifications
| Item | Specification |
|---|---|
| Model | FZ7-70 |
| Drawing Number | JK21-194.00 |
| Rated Working Pressure | 70 MPa (10,000 PSI) |
| Body Strength Test Pressure | 105 MPa (15,000 PSI) |
| Hydraulic Cylinder Test Pressure | 31.5 MPa |
| Maximum Hydraulic Control Pressure | 21 MPa |
| Inner Diameter (ID) | 76 mm (3″) |
| Ram Stroke | 55 mm |
| Single Cylinder Inlet Volume | 0.3 L |
| Upper & Lower Connection | 4-3/4″ × 2 ACME Thread |
| Hydraulic Pipeline Connection | NPT 1/2 Quick Union |
| Manual Locking Direction | Turn Right (Clockwise) |
| Suitable Cable Sizes (Upper) | 5.6 mm, 8.0 mm and other specifications |
| Suitable Cable Sizes (Lower) | 4.0 mm, 3.2 mm and other specifications |
| Temperature Grade (Metallic) | -29°C to +121°C |
| Service Environment | Crude oil, natural gas, water with H2S (EE Level) |
| Operating Form | Hydraulic Control |
Design & Manufacturing Standards
- SY/T7010-2014 — Blowout preventer used in downhole operation
- GB/T22513-2013 — Petroleum and natural gas industries — Drilling and production equipment — Wellhead and christmas tree equipment
- NACE MR0175 — Sulfide Stress Cracking Resistant Metallic Materials for Oilfield Equipment
Main Components
1. Shell & Upper/Lower Connector Assembly
The BOP body is precision-machined with an internal diameter of 76mm. Upper and lower connectors feature 4-3/4″ × 2 ACME thread connections, secured by a union nut. Female thread protector is included for storage and transport.
2. Hydraulic Cylinder Assembly
Dual hydraulic cylinders provide balanced ram operation. Each cylinder assembly includes cylinder head, end cover, piston with Y-type sealing rings, and guide rod. Cylinders are connected by bolts and nuts for easy maintenance.
3. Pipe Ram Assembly
The BOP is equipped with pipe ram assemblies featuring rubber inner and outer seals. Under external force, the rubber seals provide large elastic deformation to evenly adhere to the sealing surface, ensuring reliable pressure containment. Three seals must engage: ram inner seal with wire, ram outer seal with shell, and shell seal with hydraulic cylinder.
4. Balance Valve Assembly
Mounted on one side of the BOP shell, the balance valve must be opened (counterclockwise) before opening the BOP to equalize pressure above and below the ram. The valve core should be tightened clockwise immediately after BOP opening to prevent seal failure.
5. Bleed-off Valve Assembly
Installed on the opposite side, this assembly includes a stop valve, pressure gauge (100MPa), quick union connections, and extended bleed-off joint. Allows controlled pressure release after operations.
Pressure Testing Requirements
| Test Type | Test Pressure | Hold Time | Acceptance Criteria |
|---|---|---|---|
| Shell Hydrostatic Strength | 105 MPa | 15 min | No leakage, pressure drop ≤ 2.1 MPa |
| Ram Sealing Test | 70 MPa | 10 min | No leakage |
| Hydraulic Circuit & Cylinder | 31.5 MPa | 15 min | No leakage |
All pressure tests must be conducted in a dedicated high-pressure test pit with protective measures. Pressure rise and drop shall be carried out in stages of 5 MPa with 1-minute hold between stages.
Applications
- Wireline and slickline well intervention operations
- Downhole logging and perforating operations
- Coiled tubing operations with cable
- Well testing and pressure control applications
- Workover and completion operations requiring cable PCE
- Emergency well shut-in during wireline operations
Maintenance & Inspection
- Pre-job Inspection: Check all threads, seals, sealing surfaces and hydraulic connections before each operation
- Post-job Maintenance: Disassemble, clean, inspect all components, lubricate moving parts
- Quarterly: Inspect ram seals, side door seals, and balance valves; perform function and pressure tests
- Yearly: Complete disassembly, dimensional inspection, hardness testing, NDT (MPI/PT), full seal kit replacement
- 5-Year Inspection: Major overhaul with complete disassembly, recertification, and comprehensive testing
- All rubber sealing components must be replaced if stored beyond 36 months
Why Choose CAMTOP?
CAMTOP (Shanghai) Machinery Equipment Co., Ltd. is a trusted manufacturer and supplier of well control equipment with extensive industry experience. Our FZ7-70 Single Ram BOP is designed and manufactured to the highest industry standards, ensuring reliable performance in the most demanding well intervention scenarios.
- ISO 9001 certified quality management system
- Full compliance with SY/T7010-2014 and GB/T22513-2013 standards
- NACE MR0175 compliant materials for H2S service (EE Level)
- Complete quality documentation with material certificates and test reports
- Custom ram configurations available for different cable sizes
- Comprehensive after-sales support and maintenance guidance
- Competitive factory-direct pricing with global shipping
Contact Us
For pricing, technical specifications, and customization inquiries, please contact our sales team:
Email: sales@cposl.com
Phone: +86.21.58432768
Web: www.camtop-oilfieldtools.com
Address: No. 432, Fute North Road, Pudong District, Shanghai, China
Reviews
There are no reviews yet.