Geology, geography and global energy

Scientific and Technical Journal

Petroleum potential of Northwest Caucasus

2013. №3, pp. 79-92

Pinchuk Tatyana N.  - Ph.D. in Geology and Mineralogy, Associate Professor, Kuban State University, 149 Stavropolskaya st., Krasnodar, Russian Federation, 350040,,

Popkov Ivan V.  - Post-graduate student, Kuban State University, 149 Stavropolskaya st., Krasnodar, Russian Federation, 350040,,

The main oil and gas potential fold-orogenic structures Northwest Caucasus are related to Cretaceous sediments. The article presents information on oil and gas shows and commercial flows, obtained in the process of drilling and conducting testing works in wells in the study area. Of the data on reservoir properties of rocks, as well as alleged types of traps in the sediments of the Lower and Upper Cretaceous. The greatest practical interest are the Lower Cretaceous deposits, which are present in the context of thick layers of sandstone and separate bundles and carbonates with good petrophysical properties that are reservoirs for the accumulation of hydrocarbons. These include carbonate formations suite chepsi difference rocks and sand formations and shishanskoy, afipskaya, fanarskogo horizons, Uba and suites shapsuho. Is promising for the search for hydrocarbon deposits on the northern slope of the North-West Caucasus Development Zone biohermal and organo-clastic limestone suite chepsi, extending from the river to Ubin Gostagaevskoy area and further to the west, where it sinks under the cover of Cenozoic sediments. Zone is characterized by a considerable thickness of carbonate formations, high reservoir quality, the availability of reliable mud tires. A similar zone of carbonate formation projected on the southern slope. In the Lower Cretaceous clastic sediments dominated by collectors and granular clay cap, essential to the formation of traps have thrust fault anticlinal folds. The most interesting fanarskogo sandstone horizon with high capacitance parameters for the cluster in which oil and gas. Reservoir properties due to intergranular porosity and tectonic fractures. Upper Cretaceous sediments are more complex structure is due to the extensive development of carbonate strata. Their capacitive-filtration properties are associated with fractures, cavernous-fractured, granular-fractured reservoirs. Success of exploration activities in the North-West Caucasus is largely determined by the reliability of structural models and the validity of models of traps to mark the complex structure of fold-and-thrust dislocations.

Key words: oil,gas,reservoir properties,trap,oil and gas potential