Features of DC oil drilling rig
1. DW, RT and mud pump realize independent DC stepless speed regulation which provide guarantee for drilling technology optimization.
2. Mast, substructure and drill floor equipments can be installed at lower position, and then be lifted integrally upon DW power.
3. Auto-bit-feeding adopts all-digital auto control technique, driller operates the touch screen to fulfill drilling operation through optimized drilling parameters, which will reduce labor intensity significantly and improve work efficiency. Display, restoration, regulation and control, remote management of major drilling parameters can be realized.
| Item |
Description |
Specification |
| 1 |
Rig rated depth: |
20000ft (6000m) 5” D.P. |
| |
|
22966ft (7000m) 4-1/2” DP |
| 2 |
Static hook load: |
1000000Lb (4500KN) |
| |
Available height of derrick: |
45m |
| 4 |
Traveling system: |
6×7 |
| 5 |
Diameter of drilling line: |
1 1/2” (φ38mm) |
| 6 |
Height of drilling floor: |
34.5’ (10.5m) |
| 7 |
Opening diameter of rotary table: |
φ37-1/2” (φ952.5mm) |
| 8 |
Rated input power of draw works: |
2000HP (1470kW) |
| 9 |
Steps of draw works: |
4 forward+ 4 reverse ， stepless speed regulation |
| 10 |
Capacity of mud pump: |
1600HP×3 |
| 11 |
Power transfer type: |
AC—SCR—DC |
| 12 |
Drive model: |
one to two |
| |
|
|
| Section 1 STRUCTURE AND MAST, ACCESSORIES |
| 1.1 |
Mast |
Model: JJ450/45-K |
| |
Specifications: |
|
| |
n Available height: |
45.5m |
| |
n Static hook load capacity: |
1000000 lbs |
| |
n Width of top (face/side): |
2.5/2.2m |
| |
n Width of bottom: |
9m |
| |
n Height of racking platform: |
24.5, 25.5, 26.5m |
| |
n Anti-wind capacity: |
|
| |
Ø No hook load, full of stands: |
36m/s |
| |
Ø No hook load, no stand: |
47.8m/s |
| |
Ø Lifting and lowering: |
8.3m/s |
| |
n Transport dimension: |
44500×2700×3100mm |
| |
n Weight: |
76880kg |
| |
n Racking platform capacity of 5” DP |
6000m |
| |
n Racking platform capacity of 91/2” DC |
5 stands |
| |
n Racking platform capacity of 8” DC |
8 stands |
| |
n The height of casing stabbing board |
6m |
| 1.2 |
Crown block |
Model: TC-450 |
| |
Features: |
|
| |
Conforms toAPI 4F/ 8A specification. |
|
| |
Consists of frame, guide shaft assembly, main pulley block and rail, match rope roll with sheave. |
|
| |
Equipped with one lifting rack of 10kN, one sand sheave, two sheaves for air winches with 50kN and one cantilever sheave for hydraulic tong with 50kN. Fixed buffer wood for crown block frame. |
|
| |
Specifications: |
|
| |
n Max. Load: |
4500kN |
| |
n No. of sheaves: |
7 |
| |
n Dia. of main sheave: |
60”(φ1524mm) |
| |
n Dia. of drill wireline: |
φ38mm (1-1/2”) |
| |
n Dia. of sand line sheave: |
φ762mm |
| |
n Dia. of sand wireline: |
φ14.5mm (9/16”) |
| |
n Auxiliary pulley diameter: |
φ400mm |
| 1.3 |
Casing stabbing board |
|
| |
Features： |
|
| |
Entirety frame is made of channel steel |
|
| |
Lifted by electric motor or air powered capacity 1T, and a flexible tongue on the board |
|
| |
Adjustable stroke： 6 m |
|
| |
Board with safe stop and belly belt fixation point |
|
| |
Total board can rotate 90 degree to the derrick when not used |
|