1.For tripping operation of petroleum string under pressure in oilfield workover operation 2.Advanced technology 3.Efficient
Introduction:
DY18-21/35 wellhead pressurized snubbing device is a special-purpose equipment for tripping operation of petroleum string under pressure in oilfield workover operation. This device can achieve safe, reliable snubbing in and out of the string from the well without well killing or blowout, which can reduce the water injection frequency and save sewage treatment costs. This equipment can avoid the reduction of the surrounding oil well production because of reduction of regional ground pressure caused by blowout, and reduce environment pollution, protecting the oil and gas resources at maximum limit. Generally, DY18-21/35 wellhead pressurized snubbing device is a new type, highly efficient and stable pressurized workover equipment. This device adopts individual type structure design, and the power system can use the power system of the workover rig or specialized assorted power station system.
Features:
1. Advanced technology.
2. Convenient operation and good reliability.
3. High operating efficiency.
4. Energy-saving and environment friendly.
5. Good comprehensive properties.
Technical specifications:
Model No. | DY18-21/35 | ||
Hoisting oil cylinder travelling schedule (two types) | 3000(3500) mm | ||
Max. hoisting force (kN) | 600 | ||
Max. depressing force (kN) | 360 | ||
Speed of the hook (m/s) | 0.13~1.67 | ||
Motive sealing pressure (MPa) | 21 | ||
Static sealing pressure (MPa) | 35 | ||
Max. nominal diameter (mm) | 186 | ||
Max. hoisting speed (mm/s) | 170 | ||
Max. depressing speed (mm/s) | 280 | ||
Max. pressure of hydraulic control system of the lift oil cylinder (MPa) | 20 | ||
Max. pressure of hydraulic control System of the blowout preventer (MPa) | 16 | ||
Lift oil cylinder pressure | Max. input flow rate (L/min) | 300 | |
Max. input flow pressure (MPa) | 20 | ||
Control hydraulic of blowout preventer and rotary slips | Max. input flow rate (L/min) | 150 | |
Max. input flow pressure (MPa) | 16 | ||
Overall dimensions (mm) | 3000x2500x5500 | ||
Weight (kg) | 9500 | ||
Wellhead pressurized snubbing device
