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Subbing Unit
Specification;
Model Stand alone Rig Assist Rated Pull 150K 240K 340K 460K 600K Mini type 77t(170K) Rated Pressure 5000psi~15000psi Bore Diameter 7"~141/2" Rotary Torque 3000ft.Ib~22000ft.Ib 70 snubbing units have been sold in China.The domestic total accounted for 60%, and the new increment after 2019 accounted for 90%.
More than 4,000 Wells have been constructed in Sichuan,Chongqing,Changqing,Karamay,Daqing and other regions in China since 2020,The maximum working pressure is(6200psi)43MPa, and finish running tubing into or out of hole,sand washing,fishing,milling plug and P&A with H2S.
Three or four operators work on platform:
Operator:operate jack,slips,BOP;
One Assist Operator:Operate counterbalance winch;
The other Assist Operator:Operator hydraulic tong.
Pipe handling system includes catwalk, ground arm, traveling system, platform arm and gin pole arm.
Hydraulic Tong
Operation Room
Rig up and rig down time；4-5hours
Pipe Handling System:
Pipe handling system includes the catwalk,traveling system with guide wire,hydraulic elevator,
surface arm,and platform arm.Two guide wires connect ginpole to surface no matter how
height is snubbing jack.After the hydraulic elevator hold the pipe,traveling system slide along
guiding wire,surface arm,platform arm,and swinging arms to transport the pipe to the workbasket.
1)Hydarulic Catwalk
>Model:HZMD05
>Pipe sizes:2-3/8”~3-1/2”drill pipe
>Circle time:≤30s
2)Surface Arm
>Model:HDJXT88
>Pipe size:2-3/8”~3-1/2”drill pipe
3)Traveling System With Swing Arm
>Model:HDJXT88
>Pull Capacity:1t
>Pipe Size:2-3/8”~3-1/2”drill pipe;
4)Hydaurlic Elevator
>Model:HDK3-1/2D05
>Pipe Size:2-3/8”~3-1/2”drill pipe;
>Safety Guard:Hydraulic interlock with mechnical lock;
5)Platform Arm
>Model:HTJXT88
>Pipe Size:2-3/8”~3-1/2”drill pipe;
>Rotate 120°
Snubbing Unit Hydraulic Tong
Hydraulic tong is installed on traveling plate,
including pipe guide,spin tong,main tong,back up
tong,hydraulic tong can slide on mounting base.
Normally hydraulic tong stays on wellhead center,it
will slide while running hanger or downhole tools
>Max Makeup Torque:12000ft-Ib;
>Max Spin Tong Torque:2800ft-Ib;
>Max Spin Speed:85rpm;
>Pipe Size:2-3/8”~4-1/2“;
>Height:40”;
>Weight:1500Ibs;
Operation Room
Operator's room can control snubbing jack,hydraulic power unit(HPU),pipe handling system,hydraulic tong,safety BOP, BOP control system,Emergency control,kill/choke manifold,pressure test pump and other valves.
You donn't need to see the unit while you operating,just like playing game in room.
PRUSSURE TEST
Operator can control the pressure test pump in Operator's room,the record can save in DAS automated
MANIFOLD MONITOR AND CONTROL
For hydraulic workover jobs,we can control circulating pump,kill manifold,desander,choke manifold,separator and monitor pump pressure,flow,tank level inside the Operator's room.
REMOTE SUPPORT
The data and video can send to cloud,provide remote technical support.
SAFETY SOLUTION:
SLIP INTERLOCK
Slip interlock system includes hydraulic interlock,displacement sensor,load cells.If you want to open one slip(heavy or snubber),you must close the other slip(heavy or snubber),the slip must close on pipe,not coupler or downhole tools and holdall the string load.
BOP INTERLOCK
BOP interlock system,using pressure transduer,displacement sensor to make annunlar safe;
SNUBBING JOB ANNULAR CONTROL
>ESW(Emergency shut in well):Press ESW button,close all slips,working BOP(not include annular BOP),EQ/BL valves and safety pipe ram BOP to control tubing movement and annular pressure.
> ESD(Emergency Shut Down):Press ESD button,close all slips,shear ram and blind ram to control tubing movement and annular pressure.
HWO ANNULAR CONTROL
>Acoustic reflection monitor the annular fluid level in hole and control the sand pump to pump circulate fluid into well.
>Once overflow or kick,press the KW(kill well)button,close all slips,close EQ valve and open BL valve,close upper ram BOP, open lower BOP,circulate fluid,control choke manifold and kill the well.
>once well blowout,press ESW or ESD button.
INSIDE WELL CONTROL
>Primary control:once the plug inside the string is failure and overflow,pickup one string with hydraulic control safety valve to platform and makeup or hold the pipe,close safety valve.
Second control:
>BOP from bottom to up:doulbe ram BOP(lower slip ram,upper shear ram)+blind ram BOP+Snubbing unit.
(1)if the string is pipe Press one buttom,close all slips,slip ram and shear ram(special shear ram),jack move up to 1.5meters and close blind ram.
(2)if the string is dril pipe Press one buttom,close all slips,slip ram and shear ram,jack move up to 1.5meters and close blind ram.
Automated Snubbing Unit OTHER FUNCTIONS
lf the tool's length is less than 1.5m,we can remote run or pull the tools,if more than 1.5m,we need to extend Gin pole to 21m.
MAKE UP WHILE CIRCULATION
While circulation,one winch pick circulating joint,include Kelly hose,swivel,safety valve and one joint.another winch is used for traveling system.
