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Tender Documents - Oil India Limited

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Sheaves for catline, sandline, sheave units for rig tongs, power<br />

tong / pipe spinner<br />

(d)<br />

(e)<br />

(f)<br />

(g)<br />

(h)<br />

(i)<br />

(j)<br />

SUB-STRUCTURE:<br />

Substructure assembly with provisions for mounting 17.1/2” or<br />

20.1/2” Rotary Table, manufactured & monogrammed per API Spec<br />

4F.<br />

Floor height adjustable from 10 ft to 19 ft or fixed at 14 ft<br />

height.<br />

Minimum clear height under Rotary beams: 7 ft ( When<br />

adjusted at 10 ft height)<br />

Static Rotary Capacity: 125 tons (250000 lbs) Minimum<br />

Pipe Setback Capacity 70 tons (140000 lbs) Minimum<br />

Combined Static Rotary & Setback Capacity: 390000 lbs<br />

Minimum<br />

Work Floor Dimensions: 15 ft. x 15 ft. approximately.<br />

Substructure should have provision for rat hole and mouse<br />

hole<br />

TRAVELLING BLOCK AND HOOK: Unitized traveling block & hook<br />

assembly with 4 sheaves having rated capacity between 125 tons to<br />

187 tons (113 MT to 170 MT).<br />

ROTARY DRIVE: Rotary drive, for driving 17.1/2” or 20.1/2” Rotary<br />

Table by means of suitable air flex clutch drive from the rotary<br />

counter shaft, with oil bath chain guard and sprocket for rotary table.<br />

The static load rating of 250000 lbs complete with master bushing<br />

SERVICE WINCH: Hydraulic winch with wire line, tail chain, control<br />

valve & hoses installed having bare drum line pull capacity of<br />

minimum 5000 lbs.<br />

HYDRAULIC SYSTEM: Suitable for heavy duty power tubing tong,<br />

raising & lowering the mast, and hydraulic winch. May be single or<br />

double, hydraulic pumps of suitable capacity, completed with<br />

necessary hydraulic circuit and accessories. The system should be<br />

capable of operating properly the Telescopic Rams of the Rig for<br />

rigging up or down the mast, the hydraulic motor to operate the<br />

winch and hydraulic subs. Preferably, the hydraulic pumps should<br />

be driven by the PTOs fitted with the Transmission.<br />

ROTARY TABLE: Rotary Table with 17.1/2” or 20.1/2” opening and<br />

static load rating of minimum 250 tons<br />

ROTARY SWIVEL: Swivel having dead load rating between 150 ton to<br />

200 ton (136 MT to 181 MT) with 5000 PSI working pressure and<br />

complete with bail bumper support, goose neck connection to rotary<br />

hose etc. Swivel pin connection should be 3.1/2” or 4.1/2” API<br />

regular left hand with matching cross-over.

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