... to measure pressure, temperature, load, and acceleration. The acceleration data is processed to yield position, so that a load vs. position dynagraph can be generated using data collected downhole. With five tools in the hole at one time, all measured data and computed dynagraphs from five different...

... 114 beam pumping unit was monitored with the same test equipment. Field dynagraph cards and their analysis are presented which provided a quantative comparison of the hydraulic unit versus the beam unit. From the performance analysis and the actual field tests of the dynamometer and acoustical well...

... into the fluid in the pump barrel, which will cause Pressure P3 to increase above Pressure P2, thus opening the TV. P2, thus opening the TV. artificial lift system dynagraph beam pumping api rp11l rod load calculation gearbox torque pump plunger fluid level application TV load fluid load well...