The 8th Meeting of the Working Committee of the International Business Congress on Modern Technologies and Prospective Oil and Gas Industry Projects took place at the St. Petersburg International Oil and Gas Forum on Thursday. The meeting focused on the discussion of leading international expertise and achievements in offshore oil and gas exploration.
Representatives of PJSC Gazprom, as well as of several of its subsidiary companies and organizations, took part in the meeting, alongside representatives of Wintershall and Royal Dutch Shell, and a number of scientific centres, research facilities and service providers, involved in the processes of exploration and development of offshore oil and gas fields.
Sergey Tumanov, Managing Director of Gazprom International, presented a report on the Principles of effective management of deepwater drilling and well construction. He used the company’s experience of drilling deepwater wells at blocks № 129-132 on the continental shelf of the Socialist Republic of Vietnam to illustrate his report.
Extensive exploration has been carried out in the area since 2009, including 2-D subsea seismic exploration, electric exploration and numerous chemical and geological prospecting procedures, followed by a comprehensive analysis and interpretation of the physical and geological data collected. The joint operating company Vietgazprom with the Russian side represented by Gazprom International presented the geological background for determining the locations for drilling new exploration wells, and the results of the engineering and geological exploration carried out by drilling two exploratory wells at block № 130 (Than Dat, 3,960 m) and № 131 (Than Bien, 4,975 m).
These wells are the deepest subsea wells in Vietnam (the sea depth at Than Dat is 1,150 m, and 1,650 m at Than Bien). The construction was carried out using a 6th generation drilling vessel equipped with a dual MPT (Multi-Purpose Tower) and the Deepsea Metro I dynamic positioning system.
According to Sergey Tumanov, the project was realized by applying a number of novel technical solutions, some of which were used in the practice of deepwater drilling for the first time ever. The company succeeded in completing the project with the utmost economic efficiency.
VNIIGAZ LLC estimates the reserves of contract blocks № 129 – 132 to be equivalent to 460 Mtoe, including 350 bln cubic metres of natural gas, 75 mln tons of oil, and 35 mln tons of gas condensate.
Gazprom International has been conducting exploration at block № 112 and blocks № 129-132 on the continental shelf of the Socialist Republic of Vietnam since 2002. The JOC (Joint Operating Company) Vietgazprom, established by PJSC Gazprom and the Vietnam Oil and Gas Group Petrovietnam on the basis of parity conditions, has undertaken the role and functions of the operator on these blocks.
In 2013, Gazprom International and Petrovietnam began industrial production of natural gas and gas condensate at the Moc Tinh and Hai Thach fields located on the territory of contract blocks № 05-2 and № 05-3 on the continental shelf of Vientam (total production volume of natural gas - 35.9 bln cubic metres; total production levels of gas condensate - 15.2 mln tons). Currently, the average daily production rate from the two fields is equivalent to 7 mln cubic metres. Hydrocarbons produced at the fields are transported to consumers in the south of the country via the Nam Con Son-1 pipeline. The total cumulative production of natural gas at contract blocks № 05-2 and № 05-3 has now surpassed a volume of 5 billion cubic metres.
The St. Petersburg International Gas Forum is a leading platform for discussing some of the more pressing issues in the industry. This year more than 3,000 delegates from 36 countries took part in the Forum, including representatives of leading Russian oil and gas companies, as well as representatives of government bodies, Russian and foreign industrial corporations, scientists, experts, and heads and members of industry-wide scientific research and design institutes, and think tanks.