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VIEW DETAILSRockySea Petro Quick Lock Ram BOPGreatly reduce the time for replacing the ram and effectively improve work efficiency with safety..No need for large high torque bolts, convenient disassembly and assembly of side doors.Compact structure and reduced weight means more operation roomTraditional blowout preventers all adopted side door bolt connected structures, which require a lot of manpower and time when replacing or repairing the ram every time. On the basis of absorbing the experience and advanced
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Flexing: An optional outside profile can be machined to reduce the collar rigidity if required.
Internal bore treatment: This option generates a compression level of at least 60,000 PSI at a given depth. This provides the collar with an excellent resistance to stress corrosion cracking.
Pin stress relief groove and box boreback: An pin stress relief can be used on all drill collars and downhole tools. It is a recommended option in situations where fatigue can occur as a result of bending. By removing unengaged threads in the high stress areas of the drill collar connection, it is less likely to crack due to fatigue because the bending will take place in the area of the connection with smooth surfaces that are free of stress concentrations.
Optional slip and elevator recesses are available to improve handling and safety. These two features can be used together or separately.
Parameters
Permeability (magnetic field strength = 1 × 105/4πNm) :
Maximum value: 1.010, average value: μ r≤1.005
Magnetic field gradient: (hot spot) maximum value: B ≤ 0.05
OD range | Yield strength | Tensile strength | Elongation | Hardness | Charpy impact energy | |
mm | in | MPa | MPa | % | HB | J |
79.4~171.4 | 3 1/8~6 3/4 | ≥758 | ≥827 | ≥18 | NA | NA |
177.8~279.4 | 7~11 | ≥689 | ≥758 | ≥20 | NA | NA |
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