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Plunger-diaphragm pumps PDN

  • Series description
  • Technical characteristics
  • Downloads
PDN
  • Sucker-rod
  • Upstream
  • Brine water
  • rock-oil
  • water + petroleum products
  • multiphase (oil + water + gas)

Function

Plunger-diaphragm pumps of PDN type are designed for pumping-out stratal liquid of high viscosity and with an increased content of mechanical impurities from production oil wells having a minimum inner diameter of the casing of 114 or 121,7 mm.

The working position of the pump is the vertical one. Tolerable angle of deviation from the vertical position – not more than 30.

Climatic version V, location category 5 as per GOST 15150-69.


Design

Structurally, the pumps comprise two parts: the upper part - hydraulic cylinder which accommodates a working pair consisting of the cylinder and rod-plunger and the bottom part which is made up of diaphragm tanks in a quantity from 1 up to 3 tanks depending on the pump version.

While the rod-plunger moves upward, the action of suction takes place.

While the rod-plunger moves downward, the stratal liquid under the action of the rod string weight is extruded into the oil-well tubing and further towards to the collector.

The pumps may be operated over the wide range of capacities depending on the limit number of double strokes per minute.

The pumps have no their own drive. In the capacity of the drive one should use a rocker-machine of any type which ensures the working stroke of the rod-plunger and the quantity of double strokes.

The delivery set includes an automatic coupling device intended to connect (disconnect) the rod string to the pump tail during pump assembly (disassembly) at the well site.

At the Consumer's request, in addition to the pump delivery set provision shall be made for the filter or filter-gas separator, or tubing sub.

The filter is designed for the primary purification of the liquid at the pump intake port from mechanical particles, and is specified with a maximum cross-section more than 8 mm.

The filter – gas separator is designed for the liquid filtration and liberation of gases at the pump intake port.

The tubing sub is intended for installing the oil well tubing below the admission part of the pump in order to reduce ingress of mechanical particles into the pump in case of their high content in the stratal liquid.


Application

  • for pumping of stratal liquid of the increased viscosity and containing mechanical impurity from oil wells of the oil-extracting enterprises

Design features and benefits

  • plunger-cylinder are isolated from pumped liquid for increased operational life- of pump
  • dry running without flow part damage is admissible.
  • pumpjack serves as drive.
  • pump maintenace is a periodic monitoring (1-2 times a week) of manometer indications s, capacity and dynamic level control.
  • Options:
    • Filter or filter separator (gas separator).
    • Drainage diaphragm valve.
    • Automatic coupler

Technical parameters

Pump models Flow (rang), m³/day Pump inlet pressure, kgf/sm², max Weight, kg Stroke Number of double strokes (max), pcs./min Plunger stroke (max), m Submersion depth in borehole, m, max Submersion under formation fluid, m, max
PDN-40-1500-1,1 5,4...26,6 15 140 0,6m & 5 double stroke/min 14 1.1 1500 800
PDN-40-1500-1,6 5,8...34,7 15 180 0,8m & 4 double stroke/min 12 1.6 1500 800
PDN-40-1500-2,5 6,5...27,1 15 210 0.9m & 4 double stroke/min 6 2.5 1500 800
PDN-40-2000-1,1 5,4...26,6 20 300 0,6m & 5 double stroke/min 14 1.1 2000 800
PDN-40-2000-1,6 5,8...34,7 20 350 0,8m & 4 double stroke/min 12 1.6 2000 800
PDN-40-2000-2,5 6,5...27,1 20 400 0.9m & 4 double stroke/min 6 2.5 2000 800
PDN-40-2500-1,1 5,4...26,6 25 300 0,6m & 5 double stroke/min 14 1.1 2500 800
PDN-40-2500-1,6 5,8...34,7 25 350 0,8m & 4 double stroke/min 12 1.6 2500 800
PDN-40-2500-2,5 6,5...27,1 25 400 0.9m & 4 double stroke/min 6 2.5 2500 800
PDN-50-1500-1,1 8,5...41,5 15 350 0,6m & 5 double stroke/min 14 1.1 1500 800
PDN-50-1500-1,6 9...54 15 350 0,8m & 4 double stroke/min 12 1.6 1500 800
PDN-50-1500-2,5 10,2...42,4 15 400 0.9m & 4 double stroke/min 6 2.5 1500 800
PDN-50-2000-1,1 8,5...41,5 20 350 0,6m & 5 double stroke/min 14 1.1 2000 800
PDN-50-2000-1,6 9...54 20 350 0,8m & 4 double stroke/min 12 1.6 2000 800
PDN-50-2000-2,5 10,2...42,4 20 400 0.9m & 4 double stroke/min 6 2.5 2000 800
PDN-50-2500-1,1 8,5...41,5 25 350 0,6m & 5 double stroke/min 14 1.1 2500 800
PDN-50-2500-1,6 9...54 25 350 0,8m & 4 double stroke/min 12 1.6 2500 800
PDN-50-2500-2,5 10,2...42,4 25 400 0.9m & 4 double stroke/min 6 2.5 2500 800

Pump type key

a:2:{s:4:"TEXT";s:897:"
<p>For example <b>PDN-40.15-2,5Т tº V5 TU 3665 104 05747979 2004 </b>, where :</p>

<ul>
  <li><b>PDN </b>– plunger-diaphragm pump</li>

  <li><b>40</b> – diameter of the rod-plunger, mm</li>

  <li><b>1500</b> –maximum depth of the pump trip in the hole, m</li>

  <li><b>2,5 </b> – maximum plunger stroke, m</li>

  <li><b>Т </b>– pump version: Т – with double valves (for heavy oil), К – with valves of tungsten carbide</li>

  <li><b>tº</b> - version of the pump for operation on oil-well stratal liquid with temperature of up to 413 К (140ºС), pump without tº indexation are intended for operation on oil-well stratal liquid with a temperature of up to 353 К (80ºС)</li>

  <li><b>V</b> – climatic version </li>

  <li><b>5</b> – location category 5 as per GOST 15150-69</li>
</ul>
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