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Workover rig A7-60M

A7-60M unit is designed for: 

- Drilling out the cement plugs in the pipes with a diameter 5-6 inches, and related process operations (trip of drill pipes, cleaning wells, etc.); 

- Arrange of operating equipment at the wellhead; 

- Carry out repair works and emergency response; 

- Drilling operations. 

The unit is designed for use in temperate and cold macro-climatic areas according to GOST 16350-80. Climatic version of "U" at ambient temperatures from -45 º C to +40 º C. All the mechanisms of device, except the washing pump mounted on the chassis KrAZ complexion 63,221 0,000,100 (KrAZ). 

The unit is manufactured in accordance with safety regulations in the oil and gas industry PB08-624-03. 

SPECIFICATIONS:

Chassis…………………………………………………...……………...……КrAZ 63221-044-02

Wheel arrangement ……………………………………………...………6х6

Engine…..…………………………………………………………………… ЯМЗ-238Д (Е2)

Power kW (l.s.)……….……………………………………………………243 (330)

Transmission……………...……………………………………………… mechanical

Chassis overall dimensions, mm…………...……………………… 10005х2500х3160

Lift capacity

- nominal kN (pf)...……………………………………………….………600 (60)

- maximum allowable short-term, kN (ton)………………………800 (80)
Overall dimensions of unit in transport position, m.………… 14,2х2,5х4,0

Hoist: single-drum, with a gear drive, with two drum band brake, double-disk pneumatic clutches

Traction on the drum, kW (pf)…………………………………………34 (13,4)

Hook-block speed, m / s,…………………………………………………0,10…1,5

Derrick: two-section, telescopic, tilt open front face, with system of range climbing the derrick

Mast height from the ground to the crown block, m ……………24,2

Tackle system:

Equipment of block system…………………...……………………………………3x4

Rope diameter, GOST 16853х88, mm.....………………………… 25

Hookblock…………………………………………..……………….………tricorn, uniaxial

The biggest short-term load, kN (pf)…………………………………800 (80)

Hydraulic cathead:

- maximum force on the rod, kN (pf)…………………..……………50 (5)

- operating rod stroke, m………………………………………………900

Hydraulic auxiliary drawwork, pcs…………………...………………1

Maximum allowable lift capacity, kN (pf)…………………...……20 (2)

Operating hydraulics:

- axial-piston pump 310.3.112…………………...…………………2

- axial-piston pump 310.28………………………………………… 1

Pneumatic system: powered by  pneumatic chassis

Nominal pressure, MPа (kgf/сm²)………………………………0,7 (7)

Lighting…..……………………………………………………………...operating and emergency

Type……………………………………………………………………….explosion-proof

Voltage, V………………………………………………………………24,220

Highest torque kNm (kg / m)………...…………………………26 (2630)

Rotor……………………………………………………………………hydraulic rotor

or rotor mechanical reversible, pcs……………………………1