of superstructure 15 through wellhead 11 and into the well bore 13 as shown in fig1 strut 26 forms a connection between sheave 19 at pinned connection 27 and wellhead 11 at connection 28 strut 26 also carries load cell 30 which monitors the tensile load in slick line 20 by measuring tensile load of the strut which is transferred to strut 26 via sheave 19 load cell 30 communicates with recorder 32 continuously monitoring the load value of tension in slick line 20 recorder 22 also monitors the amount of line that has payed out from power unit 23 recorder 32 can be a commercially available chart recorder such as gearhart owens model 029852 02 modified in accordance with fig2 and the specification hereinafter in fig2 recorder 32 is shown in its modified construction in accordance with the apparatus of the present invention recorder 32 as modified includes added parts namely a pen carrier 33 that includes an ink pen for printing on graph paper slide bar 39 and a pair of solenoids including low side solenoid 34 and high side solenoid 35 during operation the chart recorder has a gear drive that pulls scaled chart paper at a constant rate so that the ink pen portion of the pen carrier 33 prints a substantially straight vertical line on the scaled graph paper the printed line thus reflects the amount of.