Szekessy Vilmos (szerk.): A Magyar Természettudományi Múzeum évkönyve 41. (Budapest 1948)

Szurovy, G.: Geological structure of the Southern part of the Great Hungarian Plain

//// which time the loss of circulation was very great. It came to a blow-out, which could only be brought under control on 10 August 1941. Under a 135 atmospheric pressure and through a 3/8" bean the well produced 3,111.800,0 cuft gas/day. During the blow-out, approximately 630 to 1,260 barrels of crude oil, together with great quantities of salt water, were also erupted. During the throttled-reduced production, only a gas rich in gasoline could be produced without oil and saltwater. On 18 June 1943 the gases worked themselves up behind the casing, and after having gone wild for 4 days the hole caved in and was ruined. There w

Tas left behind a crater of approximately 33 yd in diameter filled with salt water. At the second blowaut, approximately 190 barrels/sec. saltwater without any oil traces whatsoever erupted. (b) Tótkomlós 2. Drilling time 15 October 1941 to 13 March 1942. From 5,249,5 ft downwards, the well at once showed great circulation losses, and for this reason was eventually discontinued at a depth of 5,449,6 ft. The extremely severe frost also necessitated a shut-down for a longer period. A total of 5 production tests were made (Fig. 27). 1. Test between 5,431,8—5,364,3 ft. Result: 353 cuft/h salt water with an outflow temperature of 83° C. 2. Test between 5,308,5—5,338 ft. Result: the same, together with some gas with a strong gasoline odor. 3. Test between 5,256 and 5,273,1 ft. Result: The same salt water from the tubing. In the annular space between the 2 1/2" and 6 5/8" tubing, accumulated gas and oil. It could be drained every hour, whereby much gas and approximately 16 US gallons of oil could be entraced at each draining. The oil was always followed by salt water. The pressure in the annular space amounted to 80 atm. 4. Test between 3,106,9 and 3,149,6 ft, produced much gas with salt water at a pressure of 100 atm. 5. Test between 2,933 and 2,959,3 ft, showed the same results as test 4. A great quantity of fine sand was also brought to the surface. Through the sudden closing of the Crismas Tree, a strong side pressure developed which loosened the flanging of the Christ-