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Comprehensive Drawworks Specs

The document discusses the main specifications for various oil drilling equipment including drawworks, towers, crown blocks, hooks, mud pumps, rotary tables, sub structures, traveling blocks, and swivels. It provides information on the applicable standards, power ratings, load capacities, sizes, speeds, and other key attributes for each type of equipment. The specifications are broken into ranges suitable for either workover or drilling applications.

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55 views3 pages

Comprehensive Drawworks Specs

The document discusses the main specifications for various oil drilling equipment including drawworks, towers, crown blocks, hooks, mud pumps, rotary tables, sub structures, traveling blocks, and swivels. It provides information on the applicable standards, power ratings, load capacities, sizes, speeds, and other key attributes for each type of equipment. The specifications are broken into ranges suitable for either workover or drilling applications.

Uploaded by

a
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Main Specifications & Range

We divide our drawworks into two classes, workover and drilling, which each type having
its own range of specifications:

Workover Drawworks

 Standard: API Spec 7K


 Rated power: 250 hp-1,000 hp (180 kW-735 kW)
 Max. fastline pull: 120 kN-275 kN
 Max hook speed: 1.5 m/s
 Wireline Ø: 22 mm-32 mm (7/8”-1 1/4”)
 Main brake: Belt brake/hydraulic disc brake
 Auxiliary brake: Eaton brake

Drilling Drawworks

 Standard: API Spec 7K


 Rated power: 350 hp-3,000 hp (257 kW-2210 kW)
 Max. fastline pull: 180 kN-630 kN
 Max hook speed: 1.2 m/s -1.7m/s
 Wireline Ø: 22 mm-45 mm (7/8”-1 3/4”)
 Main brake: Belt brake/hydraulic disc brake
 Auxiliary brake: Dynamic brake, eddy current brake

Main Specifications Tower


Standards API Spec 4F
Types K-type, tower, telescopic
Height 31 m-46 m (101 ft-150 ft)
Maximum static load 600 kN-5,850 kN (134,885 lbs - 1,315,132 lbs)
Main Specifications Crown Block
Standards API Spec 4F, API Spec 8C
Maximum hook loads 900 kN-6,750 kN ( lbs-1,488,400 lbs)
Number of sheaves 5-9

Main Specifications Hook


Standards API Spec 8C
Maximum hook loads 900 kN-6,750 kN (202,328 lbs-1,488,400 lbs)
Hook openings 155 mm-238 mm (6 1/16"-9 3/8")
Spring travel 180 mm-200 mm (7"-8")

Main Specifications Mud Pums


Standards API Spec 7K
Rated power 500 hp-2200 hp (373 kW-1 641 kW)
Max displacement 35.67 L/s-77.65 L/s (565 gpm-1231 gpm)
Max. Pressure 34.5 MPa-52 MPa (5000 psi-7500 psi)
Stroke length 7 1/2"- 14" (190 mm - 355.6 mm)

Main Specifications Rotary Table


Standards API Spec 7K
Opening diameters 43 cm-126 cm (17"-49 1/2")
Maximum static loads 1,350 kN-7,200 kN (303,492 lbs -1,618,624 lbs)
Maximum working torques 14,000 Nm-37,000 Nm
Drive options AC, DC, hydraulic
Maximum table speed 300 rpm
Gear ratios: 1:3.22 - 1:3.67
Main Specifications Sub Structure
Standards API Spec 4F
Types Box-on-box, swing-up, slingshot, telescope, variable height
Drill floor height 4.5 m-10.5 m (15 ft-35 ft)
Maximum static load 600 kN-5,850 kN (134,885 lbs - 1,315,132 lbs)

Main Specifications Traveling Block


Standards API Spec 8C
Maximum hook loads 900 kN-6,750 kN (202,328 lbs-1,488,400 lbs)
Number of sheaves 4-8
Wireline Ø 26 mm-42 mm (1"- 1 5/8")

Main Specifications Swivels


Standards API Spec 8C
Maximum hook loads 900 kN-6,750 kN (202,328 lbs-1,488,400 lbs)
Maximum speed 300 r/min
Maximum working pressures 25 MPa-35 MPa (3,570 psi-5,000 psi)
Stem diameters 64 mm-75 mm (2 1/2"-3")

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