Puyang Zhongshi Group Co., Ltd.
Puyang Zhongshi Group Co., Ltd.
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Coalbed Gas Water Pumping API 11AX Downhole Pumps
Water pumping API 11AX downhole Pumps Description
If the downhole pump is used in the coalbed gas operation, the function is water pumping.
In the process of production, when traveling valve and standing valve appear problems,we can pull the traveling valve and standing valve out the well through the sucker rod string, plungerand the puller ,instead of pull the whole pump and tubing string out of the well, reduce the labor intensity of operation, reduce the operation cost.
Main parts process and material:
Pump barrel: plain carbon steel plating (A1), ordinary carbon steel carbonitriding (B1), ordinary carbon steel carburizing (B2), low alloy steel nitride (B5).
Plunger: 1045 steel spraying (B1), 1045 steel spraying (B2), 1045 steel chrome plating (A1), 1045 steel double chrome plating (A2).
Valve ball and seat: stainless steel (A1), cobalt chromium (B2), tungsten carbide (C1), nickel and carbon compounds (C2), titanium carbide (C3).
Other accessories: plain carbon steel, low alloy steel, stainless steel, brass and other materials.
Technical parameter list:
| Parts code | Parts code | Tubing Size & Pump Size | |||
| 2 3/8x1 1/4 | 2 3/8x1 1/2 | 2 7/8x2 | 3 1/2x2 1/2 | ||
| Complete Pump Designation | |||||
| 20-125 | 20-150 | 25-200 | 30-250 | ||
| B21 | Bushing, Valve Rod | B21-20 | B21-20 | B21-25 | B21-30 |
| R11 | Rod, Valve | R11-20 | R11-20 | R11-25 | R11-30 |
| C12 | Cage, Top Plunger | C12-125 | C12-150-20 | C12-200 | C12-250 |
| P21 | Plunger, One Piece | P21-125 | P21-150 | P21-200 | P21-250 |
| C13 | Cage, Closed, Pin Plunger | C13-125 | C13-150 | C13-200 | C13-250 |
| V11 | Traveling Valve | V11-125 | V11-150 | V11-200 | V11-250 |
| P12 | Plug Seat | P12-125 | P12-150 | P12-200 | P12-250 |
| G11 | Guide, Valve Rod | G11-20 | G11-20 | G11-25 | G11-30 |
| S21 | Seating Assembly, Mechanical Top Lock | S21-20 | S21-25 | S21-25 | S21-30 |
| B11 | Barrel, Thin Wall | B11-125 | B11-150 | B11-200 | B11-250 |
| C14 | Cage, Closed Barrel | C14-20- 125 | C14-20 | C14-25 | C14-30 |
| V11 | Standing Valve | V11-175 | V11-175 | V11-225 | V11-250 |
| B22 | Bushing, Seat, Barrel Cage | B22-20 | B22-20 | B22-25 | B22-30 |
| N14 | Nipple, Seating, Mechanical Top Lock | N14-20 | N14-25 | N14-25 | N14-30 |
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