Failure Analysis and Improvement of Water Injection Booster Pump for Single-well in Field
The field single-well booster pump is an effective way to solve the problem that the injec-tion pressure and water injection volume of the injection well do not meet the requirements.The pack-ing often experiences puncture and leakage,causing the booster pump to leak.The reason for the fail-ure of the booster pump is that the chrome plating coating on the surface of the plunger peels off,and the debris runs with the plunger at high speed,scratching the packing,causing the packing to lack seal-ing and resulting in the leakage of the booster pump.By improving the plunger coating of the booster pump,a layer of Hastelloy C22 coating is applied on the surface of the plunger using laser cladding technology.After three months of observation,the new coating shows good corrosion resistance,there is no peeling mark on the coating surface,and the sealing of packing is guaranteed.The service life of the plunger is extended by more than 3 times,which brings some performance improvements to the field single-well booster pump.
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