Drilling equipment

Well cementing equipment

Cementing head GTsU-102/114-250-3 (ГЦУ-102/114-250-3)

Is designed to cement bottom casing strings 101.6 mm and 114 mm in diameter. It ensures simultaneous reciprocation (back-and-forth movement) of the casing strings during cementing.

 

Specifications:

  • Working pressure: 250 atm;
  • Test pressure: 375 atm;

  • Maximum tensile load: 90 ton;

  • Opening diameter:57 mm;

  • Connection threading (to connect to drilling stem): З-86;

  • Diameter for elevator:79 mm

Multi-stage cementing couplings

Are designed to cement casing strings when non-isolated lost circulation zones are present in order to decrease repression on hydrocarbon-bearing formation.

Multi-stage cementing coupling MTsS.М-140 (МЦС.М-140)

Is designed to conduct cementing operations in several stages on casing strings139.7 mmin diameter in not fully-isolated lost circulation zones and with formations having low hydraulic break gradients as well as to reduce repression on hydrocarbon-bearing and absorption formations during strengthening of oil and gas wells.

 

Multi-stage cementing coupling MTsS.М-146 (МЦС.М-146)

Is designed to conduct cementing operations in several stages on casing strings146 mmin diameter in not fully-isolated lost circulation zones and with formations having low hydraulic break gradients as well as to reduce repression on hydrocarbon-bearing and absorption formations during strengthening of oil and gas wells.

 

Multi-stage cementing coupling MTsS.М-168 (МЦС.М-168)



  Is designed to conduct cementing operations in several stages on casing strings 168 mm in diameter in not fully-isolated lost circulation zones and with formations having low hydraulic break gradients as well as to reduce repression on hydrocarbon-bearing and absorption formations during strengthening of oil and gas wells.

 

Multi-stage cementing coupling MTsS-178.BTS.000-13 (МЦС-178.БТС.000-13)

Is designed to conduct cementing operations in several stages on casing strings178 mmin diameter in not fully-isolated lost circulation zones and with formations having low hydraulic break gradients as well as to reduce repression on hydrocarbon-bearing and absorption formations during strengthening of oil and gas wells.



Multi-stage cementing coupling MTsS.М-245 (МЦС.М-245)

Is designed to conduct cementing operations in several stages on casing strings245 mmin diameter in not fully-isolated lost circulation zones and with formations having low hydraulic break gradients as well as to reduce repression on hydrocarbon-bearing formations and absorption formations during strengthening of oil and gas wells.

 

Packers

Are designed to segregate and seal-off specific well zones.

Cutoff packer PGO-146 (ПГО-146)


Is designed for improve quality of segregation in closely located formations during cementing of flow strings146 mmin diameter. It provides highly durable and leak-proof rubber-and-cement seal. 

 

Hydraulic and mechanical packer PGM-195 (ПГМ-195)

Is installed in non-cased oil and gas boreholes during examination and isolation of adsorption zones.

 

Drillable replaceable packer PRS-112 (ПРС-112)



  Is used as a seal to separate annular space from absorption zones during insulation of such adsorption in wells 124 mm in diameter, as well as to segregate well’s lower part in order to create artificial bottom-hole.

 

Drillable replaceable packer PRS-195 (ПРС-195)

Is used as a seal to separate annular space from adsorption zones during insulation of such lost circulation zones in wells 219.5 mm in diameter, as well as to segregate well’s lower part in order to create artificial bottom-hole.