Sakhalin-5 is an oil and gas project on the Sakhalin Island shelf .
The project owners are Rosneft (51%) and BP (49%). Estimated total oil reserves at two sites of the project - Vostochno-Shmidtovsky and Kaigan-Vasyukansky - about 550 million tons, gas - 41 billion m³, prospective oil reserves are estimated at 1.5 billion tons of oil and 255 billion m³ of gas. [1] Currently [ when? ] Work on the Sakhalin-5 project is still in the “project documentation” stage. And the active stage of work will begin no earlier than 2010. [2]
In 2004–2009 Companies also worked in the East-Shmidtovsky area, but in 2009, as a result of analyzing the data obtained during the drilling at the West-Shmidtovsky area, as well as data obtained during seismic exploration at the East-Shmidtovsky area, it was decided to abandon drilling wells in the East-Schmidtovsky area and pass the license to the state.
The Kaigan-Vasyukansky area of 7.2 thousand km² is located in the Sea of Okhotsk in the northeastern part of the Sakhalin Island shelf. The depth of the sea in the area of the site is 90-120 m. As a result of exploration and exploration at the site, thirteen prospective structures were identified.
In 2004, the first exploration well was drilled at the site, which revealed the Pela Leych reservoir. In 2005, the Udachnaya exploration well was drilled, which also revealed a productive reservoir. The data obtained confirmed the correctness of the search directions and the high availability of the Kaigan-Vasyukansky area. In 2006, the drilling of exploratory wells in the South Vasyukanskaya and Savitskaya structures was completed.
In March 2007, a certificate was obtained regarding the discovery of the fact of the discovery of the Kaigansko-Vasyukanskoe field - the sea with recoverable reserves of oil and gas condensate in categories ABC1 16.14 million tons (118 million barrels).
In 2008, a 2D marine seismic survey was performed in the western part in the volume of 2,100 running meters in the Kaigan-Vasyukansky area. km
In 2009, in the Kaigan-Vasyukansky license area, in order to study coastal structures, seismic survey was performed using 2D method in the amount of 235 line meters. km and 3D method in the amount of 917 square meters. km
In 2010, the integrated interpretation of 3D seismic and deep drilling data continued across the Kaigan-Vasyukansky area. Completed processing and interpretation of 2D seismic materials in the transit zone of the site.
In 2012, new oil pumping towers with CD211 technology were installed along the Kaigan-Vasyukansokm.
See also
- Sakhalin shelf projects