Hasanoğlan (Ankara) petrol sisteminin organik hidrojeokimyasal kanıtları

Öz

Bu makale, Hasanoğlan (Ankara) bölgesinin organik hidrojeokimyasal, iyot jeolojisi ve tektonik özellikleri incelenerek bölgenin petrol ve doğalgaz potansiyelinin değerlendirilmesine yönelik bir çalışmadır. Çalışma, üç aşamada yürütülmüştür. Birinci aşamada, bölgenin stratigrafik ve tektonik ilişkilerini konu alan öncel çalışmalar incelenmiştir. Böylece, organik hidrojeokimyasal ve jeofizik değerlendirmeler için gerekli olan veriler derlenmiştir. İkinci aşamada, manyetik ve bölgesel gravite haritaları hazırlanarak çalışma alanındaki tektonik yapıların özellikleri incelenmiş ve olası petrol kapanı belirlenmiştir. Son aşamada ise, elde edilen tüm veriler birlikte yorumlanarak Hasanoğlan bölgesinin petrol ve doğalgaz potansiyeli değerlendirilmiştir. Bölgedeki su kaynaklarından alınan su numunelerinde yapılan TPH (Toplam Petrol Hidrokarbonları) analizlerinde, n-alkan hidrokarbonlar tespit edilmiştir. Su numunelerindeki n-alkanların tamamı, ham petrol (petrojenik) hidrokarbonlarıdır. Olgun petrol hidrokarbonları içeren ve iyotça zengin suların varlığı nedeniyle, bölge yüksek petrol ve doğalgaz potansiyeline sahiptir.

Anahtar Kelimeler

• Hasanoğlan,Karakaya karmaşığı,Petrol ve doğalgaz potansiyeli,TPH (Toplam Petrol Hidrokarbonları),Organik hidrojeokimya,İyot

Organic hydrogeochemical evidences of Hasanoğlan (Ankara) petroleum system

Abstract

This article is a study to evaluate the oil and gas potential of the region by investigating the organic hydrogeochemical, iodine geology and tectonic characteristics of Hasanoğlan (Ankara) region. The study was conducted in three steps. In the first step, preliminary studies on the stratigraphic and tectonic relations of the region have been examined. Thus, the data required for organic hydrogeochemical and geophysical evaluations are compiled. In the second step, aeromagnetic and regional gravity maps were prepared and the possible oil trap and characteristics of the tectonic structures in the study area were determined. In the last step, all data are evaluated and oil and gas potential of Hasanoğlan region is interpreted. TPH (Total Petroleum Hydrocarbons) analysis results of water samples showed n-alkane hydrocarbons. All n-alkanes in water samples are crude oil (petrogenic) hydrocarbons. Due to the presence of mature petroleum hydrocarbons and iodine-rich waters, the region has high oil and gas potential.

Keywords

• Hasanoğlan,Karakaya complex,Oil and gas potential,TPH (Total Petroleum Hydrocarbons),Organic hydrogeochemistry,Iodine

Kaynakça

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