Main pageBlowout Equipment (BOP)

Blowout Equipment (BOP)

The blowout equipment is intended for wellhead sealing of oil and gas wells during the process of their construction and repair with the purpose of safe execution of works, prevention of blowout and oil gusher, conservation of mineral resources and environment protection. The blowout equipment is manufactured in compliance with technical specifications ТУ 3661-030-39048342-2006, meets the requirements of GOST 13862-90, GOST 27743-88, GOST 12.2.115-86, GOST 12.1.003-83, GOST 12.1.012-90, GOST 12.2-003-91, GOST 12.2.007.0-75, ПБ-08-624-03. The blowout equipment is manufactured in version K1 / K2 according to GOST 13862-90.

The blowout equipment packages make provision for implementation of the following works:

  • wellhead sealing including opening and closing of blowout preventer rams (seal) under pressure and without pressure;
  • drill-string running and pulling-out with the wellhead being sealed including pipe joints drawing, drill string reciprocation, string suspension on the rams and holding it gripped by the rams while outbursts;
  • drill fluid circulation with generation of controlled uplift pressure on bottom and drill fluid degassing;
  • efficient control of hydraulically driven elements. 
JSC “STANKOTEKHNIKA” produces the blowout equipment of standard layouts from 1 to 9 according to GOST 13862-90 for the nominal bore diameters of 156, 180, 230, 280, 350 and 425 mm with the lateral branches of 50, 65, 80 mm to suit manifold for an operating pressure of 21, 35 and 70 MPa in K1 and K2 version. All equipment is provided with relevant Certificates and Authorization for use.

Main Components of Blowout Preventers:

  1. Shank portion  including:
    1. wellhead crosspiece with pipe branches for manifold;
    2. double-gate ram-type preventer (hydraulically-operated, hydraulic with capability to be   reconfigured for manual operation, with manual drive). Optionally the drive for manual ram fixing may be delivered;
    3. hydraulic annular preventer (revolving or non-revolving);
    4. adapter spool.
  2. Manifold including:
    1. two wellhead (main) gate valves with manual and hydraulic drive;
    2. distance (pulse) pipes;
    3. killing unit;
    4. throttling unit;
    5. box to locate killing and throttling units (at Customer’s request);
    6. drill fluid settler (at Customer’s request);
    7. drawdown pipes (discharges) (at Customer’s request).
  3. Hydraulic control station for preventers and gate valves.

Shank Portion of Blowout Equipment

Shank portion
А, mm
B, mm
С, mm
D, mm
Total height
(Н), mm
Mass,
kg
ОП2(4)-156х21
680
495
350
1525
1817
ОП2(4)-156х35
680
495
350
1525
1837
ОП5-180х21
680
495
840
425
2440
3221
ОП5-180х35
680
495
925
425
2525
3676
ОП5-180х70
680
570
971
425
2646
5229
ОП5-230х21
600
538
980
350
2468
4555
ОП5-230х35
680
538
1045
450
2713
5740
ОП5-230х70
710
670
1150
500
3030
8584
ОП5-280х21
700
600
1150
450
2900
7370
ОП5-280х35
730
600
1156
450
2936
8758
ОП5-280х70
780
700
1180
500
3160
12342
ОП5-350х21
710
765
1210
440
3125
11040
ОП5-350х35
710
765
1248
440
3163
11880
ОП5-350х70
830
960
1355
550
3695
16975
ОП5-425х21
700
758
1310
440
3208
11325

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