THE OFFSHORE WORKOVER RIGS
The offshore workover rigs can be driven by VFD or SCR, which has high driving efficiency and are easy to control
Parameter of THE OFFSHORE WORKOVER RIGS
1、These workover rigs are designed and manufactured in accordance with API Spec Ql. 4F, 7k 8C and technical standards of RP2A-LRFD2Z, 14F,14G.500. GB38261 GB3836.2 GB7258. SY5202
2、A reasonable assembly of Caterpillar engine and Allison hydraulic transmission box can insure safety. The offshore workover rigs can be driven by VFD or SCR, which has high driving efficiency and are easy to control
3、The derrick is erective and front open, which can be structured with two sections or with T-type or telescopic multi sections without cables for fixing The effective height of the derrick is 29m, 31m and 33m.
4、According to the finite element structure analysis, the whole unit can fully Meet the customers requirements of wind-resistance and anti-vibration capabilities. The surface of structural parts are treated with sand blasting, spray-painting baked painting, spray-aluminum and spray-zinc to meet the requirements of ocean environment and climate.
5、The rotary equipment, solid-control equipment and well-control equipment are equipped to meet the requirements of drilling and workover operations. The whole unit can be moved horizontally and longitudinally to meet cluster-well operation requirements.
6、Safety and inspection measures are strengthened under the guidance of the design concept of “Humanism Above All” to meet the requirements of HSE
| Model | HXJ90 | HXJ112 | HXJ135 | HXJ158 | HXJ180 | HXJ225 | |||
| Structural way | Skid-mounted | ||||||||
| Workover depth (ft) (31/2 DP) | 8200 | 11500 | 15000 | 18000 | 21000 | —— | |||
| Drilling depth (ft) (5” DP) | 4900 | 5900 | 6600 | 8000 | 9100 | 10000 | |||
| Max hook load (ibs) | 200000 | 250000 | 300000 | 350000 | 400000 | 500000 | |||
| Engine Model | DDC6V-92TA Or CAT 3406C DITA | DDC8V-92TA Or CAT 3408B DITA | DDC12V-92T Or CAT 3412B DITA | DDC12V-92T Or CAT 3412C DITA | 2×DDC6V-92TA 2× CAT 3406C DITA | 2×DDC8V-92TA 2× CAT 3406B DITA | |||
| Engine power (Noxhp) | 361 | 480
475 |
577
575 |
767
650 |
2×361 | 2×480
2×475 |
|||
| Model of the hydraulic
Transmission box |
CLT754 | S5600
(CLT5961) |
S5600
(CLT5961) |
S5600
(CLT5961) |
2×S5600
(2×CLT5961) |
2×S5600
2×(CLT5961) |
|||
| Transmission mode | Hydraulic+Mechanical 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 | 11/8 | 11/4 | 11/4 | |||
| 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 heught(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 | ||||||||
| Ttemperature(°F) | -4~104 | ||||||||
| Relative Humidity | 48%~88% | ||||||||
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