GEOPHYSICAL EXPLORATION AND DISCOVERY OF THE BUDAFAPUSZTA (LISPE) OIL FIELD IN HUNGARY

Interest was first attracted to the Budafapuszta area by its geographical position on the eastward projection of a known surface anticline, which had produced small quantities of oil at Peklenicza and Szelnicza. A test was located in 1920 on a small surface feature, and completed in 1923 as a dry hole. In 1934 a torsion balance survey was made by Eurogasco, a subsidiary of the Standard Oil Co. (N. J.) which indicated a dome with its crest 1500 m. north of the dry hole. A reflection survey verified the presence of the structure. The discovery well was located by the torsion balance data, and completed as a producer in 1937. A gravity meter survey made after the first two producers had been drilled, gave further information on the structure and assisted in the development of the field. This exploration history shows that a properly made torsion balance survey may be very efficient and economical even in hilly country. A geological map of part of the Szelnicza‐Peklenicza anticline, a topographical map, torsion balance, seismograph and gravity meter maps, a seismograph cross section and a subsurface contour map of the Budafapuszta structure are submitted.