... : less than 30Mpa16. Weight: 13kg M552 Combined sidewall probe ApplicationsHave a good performance of stratum Lithology acquisition, strata ... length is 455mmCaliper logging1.phole device controls the downhole probe, make it instantly fold or unfold the legs2. ... : 11.2kg, 13kg (3000m)M433/SM433 Double-density probe 1.Source intensity: 30mCi137Cs radioisotopes,Long/short-spaced natural gamma ...