| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1755569 | Journal of Petroleum Science and Engineering | 2011 | 6 Pages |
The side-flow pump is presented for increasing the setting depth of sucker rod pumping system, which adopts a special structure of side-flow valve, ladder-type solid plunger and breathing hole. By transferring the load of liquid column to the tubing on the upstroke, the new pump achieves a smaller polished rod load. On the basis of in-depth study of the pump, this paper provides a brief formula of the static polished rod load. Assuming the tubing is anchored, a new one-dimensional vibration model of sucker rod pumping system is built, which takes into account the structure of the side-flow pump. Then a mathematical model is used to design the sucker rod pumping system of Well TKN-1, with a setting depth of 4716 m. The results of dynamometer analysis show that mathematical model of side-flow pumping system and its computer programs can successfully model deep rod string performance. The rod pumping system of Well TKN-1 has operated trouble-free for 8 months. The knowledge gained gives confidence for additional future applications.
► We introduce a new structure of side-flow pump. ► We explain what the pump is made up and how it works. ► Mathematical model is built to describe the working principle of the pumping system. ► In practical applications, the pumping system shows a good performance.
