The Lower Dashava sediments are sedimentary and submerged in the southwestern direction.
Two regional faults extending from the northwest to the southeast: Krakoveckiy, Rolivski or Mainycki. For each of them Sarmatian deposits are immersed.
Susoliv and Grushiv gas and condensate fields is analogue at the first (highest) step (near Krakoveckiy fault) in Drohobych area – two blocks of South Opary structure, Voroblevycka, Nyzhniogaiska and South Nezhukhiv structures. These lateral traps are screened by Mesozoic carbonate deposits. Depth of target interval is 570-3010 m (LD-3 – LD-16).
At the second step (near Roliv fault) is Mainych gas field in northwestern direction. Two productive well from eight are in the gas field. This indicates the difficulty of distributing industrial collectors.
This gas field is the prototype for all perspective traps in this step – Roliv and South Roliv structures. Two wells Roliv 1 and Grushiv 14 are in this step. According to the well logging interpretation in the wells Grushiv 14 and Roliv 1 gas-saturated layers in the LD-13, LD-15 and LD-16. Nothing was obtained during the test in Grushiv 14. The well Roliv 1 no tested.
The low density of wells and insufficient geological exploration within this block indicate the possibility of opening perspective hydrocarbon traps. Depth of target interval is 2500-4500 m (LD-12 – LD-17).
Seismic exploration should be used for the study.
In the southern part of the area is the Laniv-Nezhukhiv tectonic unit. Two wells were drilled within this block, which revealed the Upper Jurassic deposits at depths of 1820-1850 m. According to the results of seismic interpretation, several traps were identified in the LD-15-17. Their resource base is negligible. Seismic studying these traps may increase your attractiveness for search.
In the northwestern part of the special permit, the South Ortynitska hemiantycline structure was discovered. Perspective deposits of Sarmat of LD-15-17 lie at a depth of 4500-5500 m. Seismic exploration should be used for the study. Initial reserves gas 3751 mln.m3
