CHANGE OF RESERVOIR PROPERTIES AS A RESULT OF ACID TREATMENT
UDC: 552.08:522.54:551.734(470.13)
DOI: -
Authors:
Postnikov Alexander V.
1,
Kosmynin Vladislav A.1
1 Gubkin Russian State University Oil Gas
Keywords: collector, porosity, permeability, acid treatment
Annotation:
The influence of acid treatment on carbonate reservoirs is analyzed on samples of core. Several genetic types of upper Devonian limestones and dolomites of the Timano-Pechora Province are studied. The investigated acidized samples were saturated colored pitch. The structure of pore space was analyzed in transparent sections. Depending on the rock composition and structure both improved reservoir properties of rocks, and their deterioration was established. It is shown that acid treatment in good re- servoirs can be not effective or have negative consequences, while inferior reservoirs can show improved permeability.
Bibliography:
1. Атлас текстур и структур осадочных горных пород. - М.: ГНТИ лит. по геологии и охране недр, 1962. - Т. 1. - 578 с.
2. Королюк И.К., Михайлова М.В. и др. Ископаемые органогенные постройки, рифы, методы их изучения и нефтегазоносность. - М.: Наука, 1975. - 236 с.
3. Мищенко И.Т. Скважинная добыча нефти. - М.: Нефть и газ, 2003. - 242 с.
4. Петтиджон Ф.Дж. Осадочные породы. - М.: Недра, 1981. - 751 с.
5. Постседиментационные изменения карбонатных пород и их значение для историко-геологических реконструкций /Под ред. В.Г. Кузнецова. - М.: Наука, 1980. - 96 с.
6. Peter A. Sholle, Dana S. Ulmer-Sholle A Color Guide to the Petrography of Carbonate Rocks: Grains, textures, porosity, diagenesis /AAPG Memoir 77. Published AAPG, Tulsa, Oklahoma, U.S.A., 2003, 474 p.
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