Geology, geography and global energy
Scientific and Technical Journal
Geotechnical complex of sea geological works
2015. №2, pp. 71-82
Serebryakova Valentina I. - Senior Lecturer, geotehnika@aucu.ru
Serebryakov Oleg I. - D. Sc. in Geology and Mineralogy Professor, geotehnika@aucu.ru
Serebryakova Oksana A. - Senior Lecturer, 1 Shaumyan sq., Astrakhan, 414000, Russian Federation, geologi2007@yandex.ru
On sea water areas geological researches are required at all stages of studying and development of marine oil and gas resources. At the initial stage, during the geological and search works, sea researches are necessary for justification of safe functioning of the floating (PBU) and the stationary drilling rigs (SDR) and sea vessels used when studying natural resources of the seas and oceans, and also for an assessment of prospects of oil and gas content of the sea areas. During investigation of the revealed fields sea researches are carried out for studying of a structure of a geological structure of oil fields and gas, an assessment of stocks and quality of raw materials, design of the operational constructions, intra-field pipelines and communications intended for transportation of the got production on coastal places of acceptance and sea loading terminals. During the operational period construction of PBU and SBU and operational wells, oil and gas production and their sea transportation, monitoring of operation and a condition of geological technical constructions, pipelines and communications is carried out. Tasks, methods and sequence of prospecting sea works is defined by normative and technical documents of the oil and gas companies and have to be consecutive for different stages of researches, only an areas of researches and a ratio of amounts of works change. First of all, studying of depths of the sea and a structure of a surface of a bottom on sites of placement of geological and technical constructions and on routes of pipelines is carried out, pilot and engineering-geological researches, researches structure and properties of sedimentary breeds on squares of sea works of PBU and SBU are carried out.
Key words: геотехнология, акватория, геология, геодезия, гидроэхолот, гидромагнитная съемка, geotechnology, water area, geology, geodesy, hydrosonic depth finder, hydromagnetic shooting
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