Study on the Combination of Pump Rod Pipe in Complex Structure

Table 4

Pipe combinations of different well pipes.

Well section (m)	Combination mode of rod pipe
0–170	Combination of ordinary pumping pipe and continuous pumping rod
170–400	Lined pumping pipe and continuous pumping rod
400–440	Combination of ordinary pumping pipe and continuous pumping rod
440–500	Combination of laser pumping pipe and continuous pumping rod
500–780	Combination of ordinary pumping pipe and continuous pumping rod
780–900	Lined pumping pipe and continuous pumping rod
900–2000	Combination of ordinary pumping pipe and continuous pumping rod