Cseh Valentin szerk.: „70 éve alakult a MAORT” – tanulmányok egy bányavállalat történetéből (2009)
László Paczuk: EUROGASCO and MAORT's Production Methods
blow-out preventers arrived from the USA in 1948, which was the state-of-the-art hydrauhcally operated apparatus of those times. Sludges Water-base and sodium based clay slurries were used from 1935. Means of transportation While EUROGASCO only deployed just a single tracked Hanomag tractor for transporting heavy machinery —in addition to a couple of Ford and Studebaker trucks, MAORT improved transportation conditions fundamentally by importing CATERPILLAR D-8 tracked tractors. Initially, the steam boiler was transported with a flanged iron wheel vehicle. In other cases - e.g. in the Budafa field - it was drawn over steel plates. From the beginning of the 40s, the 20 ton load capacity Mack truck from the US speeded up rengging among road and field conditions alike. It pulled heavy machines mounted on slides up to its platform with its winch. It was originally the horse-drawn carts of carters that shipped incidental equipment and materials used for deep-well drilling to the rigs. Handing over a part of the flat-bed and pipe transportation trailer equipped trucks procured for the construction of the Ujudvar-Budapest oil pipeline to the drilling organisation around the middle of the war years meant significant development for the transportation of pipes and bulk goods. Deep-well drilling geophysics The first deep-well drilling geophysics log was produced on December 21, 1935, m bore marked G-l at the Görgeteg drilling site (a resistivity distance and an SP-curve). Schlumberger profilers travelled from Austria for four years, then - in 1939 - the measuring base was created in Nagykanizsa, whose direct and uninterrupted legal successor is Geoinform Kft. Not only did the stand-alone Schlumberger team at Nagykanizsa satisfy MAORT's measurement needs, but the scope of its activities also extended to more distant parts of the country namely the Great Plains, Transylvania and Sub-Carpathia. Teams from this section sometimes went beyond the borders for the purpose of performing orders. During the MAORT years, the depth record for logging was 2965 m (May l 7 , 1949 Oltarc-1). The expanding of logging choices: Dec. 21, 1935: Resistivity distance and self-potential metering (G-l) Oct. 8, 1936: Resistivity distance metering with two scales, measuring maximum temperature (1-1) Nov. 1, 1936: Temperature log (B-2). July 8, 1937: Ingressing resistivity measurement (second resistivity curve - M-2) July 8,1938: Cement temperature measurement (B-4) April 10, 1939: Sidewall coring (B-l 5). Aug. 10,1943: Photoclinometer bore-hole inclination measurement (B-l 13).