Oilfield Equipment Drilling Equipment Supply

Offshore Workover Rigs

The offshore workover rig is specially designed and manufactured for offshore production platform for maintenance or overhaul of oil/gas/water wells and multiwell cluster. It can move on the longitudinal and transverse guide rails, either in rightward or leftward, forward or backward, (X and Y directions) each time of movement can reach 400 mm to accurately align the wellhead to be repaired. Also, it can quicken the sidetracking operation and drill the new well.

Specifications for Workover Rig Masts

Model OXJ90 OXJ112 OXJ135 OXJ158 OXJ180 OXJ225
Structural way Skid-mounted
Workover depth m
(31/2" DP)		 8200 11500 15000 18000 21000 ----
Drilling depth m
(5" DP)		 4900 5900 6600 8000 9100 10000
Max hook load (lbs) 200000 250000 300000 350000 400000 500000
Engine Model DDC6V-92TA
Or CAT 3406C DITA		 DDC8V-92TA
CAT 3408B DITA		 DDC12V-92T
Or CAT 3412B DITA		 DDC12V-92T
Or CAT 3412C DITA		 2 ×DDC6V-92TA
or 2×CAT3406C DITA		 2×DDC8V-92TA
or2 × CAT 3408B DITA
Engine power (hp) 361 480
or 475 		577
or 575		 767
or 650		 2 × 361 2 ×480
or2 × 475
Model of the hydraulic transmission box CLT754 S5600
(CLT5961)		 S5600
(CLT5961)
 S5600
(CLT6061)		 2 × S5600
(2 ×CLT5961)		 2 × S5600
(2 ×CLT5961)
Transmission mode Hydraulic +Mechanical or Electrical
Derrick height (ft) 95 95 95/102/108 102 108 102/108
Traveling system 4×3 5×4 5×4 5×4/6×5 5×4/6×5 5×4/6×5
Main wireline diameter (in) 1 1 1 1 1/8 1 1/4 1 1/4
Rotary table Model ZP90 ZP135 ZP175 ZP175 ZP205/ ZP275 ZP205/ ZP275
Hook block Model YG90 YG110 YG135 YG160 YG180/ YG225 YG225
Swivel Model SL110 SL110 SL135 SL160 SL225 SL225
Power for mud pump (hp) 500 500 500 800 800/1000 1000/1300
Substructure height (ft) 19 19 19.7 19.7 19.7 19.7
Working Environment Limit wind speed (knot) 107 (without setback)
93 (with full setback)
Earthquake magnitude 8
Temperature (°F) -4~+104
Relative Humidity 48%~88%

OXJ180 Workover Rigs

OXJ225 Workover Rigs
  © 2007 Sunnda LLC.