Subsurface sucker-rod pumps

Subsurface sucker- rod pumps are made of domestic work pieces on the basis of a  proprietary unique technology with use of methods of plastic deformation and have an increased high precision, an anticorrosive resistance to aggressive environments, an increased wear resistance. They allow to produce effectively oil from wells that are up to 1800 m deep, containing up to 99% water cut, up to 1, 3 g/l of mechanical impurities and having hydrogen ion concentration (PH) 4,2-8,0.

Depending on specific features of the forthcoming operation following design variants of pumps are possible:

  • on design: insert, non– insert (tubing);
  • on surface treatment of cylinders: nitrided, chromized;
  • on processing of the surface coating of plungers: chromized, nitrided, sprayed metal coating;
  • on clearance fit of the plunger into the channel: according to fit groups 2, 3 and 4;
  • on execution of the pair “seat- ball“: stainless steel, stellite (cobalt alloy), tungsten carbide;
  • on joints of insert pumps: with series- produced supports, with supports of “Arlanskiy” type, with supports according to API.
Name Designation Nominal internal diametr of cylinder, mm Head, mm Theoretical capacity*, m3/day Connecting threads of
ТУ-3665-014-07501343-2003 Аналог API sucker-rods (GOST 13877-96) tubing or pump-siting nipples (GOST 633-80)
Sucker-rod pump, tubing, with catchers 60-НН 2Б-32-30-15
60-НН 2Б-44-30-15
73-НН 2Б-57-30-12
88-НН 2Б-70-30-10
20-125 ТНМ 11-4-5
20-175 ТНМ 11-4-5
25-225 ТНМ 11-4-5
30-275 ТНМ 11-4-5
31,75
44,45
57,15
69,85
1500
1500
1200
1000
35
65,6
110,2
166,2
Ш-16
Ш-19
Ш-19
Ш-22
60
73
73
89
Sucker-rod pump, insert (with top hold- down) 60-НВ 1Б-32-30-15
73-НВ 1Б-44-30-15
20-125 RHAM 12-4-4
25-175 RHAM 12-4-4
31,75
44,45
1500
1500
35
65,6
Ш-19
Ш-19
ОМ-60
ОМ-73
Sucker-rod pump, insert (with bottom hold- down) 73-НВ 2Б-44-30-15 25-175 RHBM 12-4-4 44,45 1500 65,6 Ш-19 ОМ-73

* – at 10 double strokes/min

The standard length of a plunger – 1200 mm, the plunger stroke – 1,2-3,5 m. On special orders, the length of the plunger can be increased up to 1800 mm. Correctly chosen group of the fit guarantees the optimum mode of lubricant between plunger and cylinder. Upon request of the customer, insert pumps can be completed with pump sitting nipples.

Normal conditions for operation of subsurface sucker- rod pumps:

Working medium oil, water
Water content, %, no more than 99
Fluid density, kg/m3 up to 1180
Viscosity, Pa s, no more than 0,05
Mechanical impurity, g/l, no more than 1,3
Mineralization of water, g/l, no more than 10
Free gas by suction, %, no more than 30
Hydrogen index, рН 6…8
Microhardness of particles acc. to Mohs’s scale, point up to 7
Temperature of stratum fluids, °C up to 100
Content of the dissolved aggressive components, g/l, no more than Н2S – 50, Cl – 20

Certificate of conformity

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