Ross by Encana

by Posted on

Ross was discovered in 1981 with the 13/29-1 well. Ten exploration and appraisal wells were drilled in and around the field and five of these tested oil. The field produces from two upper Jurassic reservoir zones.The Ross oil field is developed using a FPSO vessel, the Bleo Holm. Shuttle tankers are used to export the oil to market. Associated gas was shipped via the Frigg UK pipeline to the Frigg St. Fergus terminal. The drilling program includes approximately 10 high angle or horizontal wells from three sites in order to optimise reserves recovery. Currently the field produces from 6 wells and a further 5 wells are used for injection. Two drilling contracts were awarded to Global Marine Drilling Company and Transocean Offshore (North Sea) Limited respectively. The Glomar Arctic III drilled the first two development wells and the Transocean Discoverer rig drilled further eight wells. Talisman and the Ross co-venturers are committed to minimising the impact of this development on the environment. Rather than flare the relatively low volumes of associated gas, the gas will be evacuated via a 23 km long pipeline to the Frigg UK System. Well fluids from the Ross and Blake fields arrive on the Bleo Holm through subsea manifolds, flowlines and risers, then the turret piping and swivel. They are then routed to the crude separation area with Ross fluids to the former test separator and Blake fluids to the production separator. Wet oil from the first stage separators is passed to the second stage separator together with recovered condensate and oil reject oil from the produced water hydroclones. The combination of temperature and pressure in the second stage separator ensures that the hydrocarbon liquids are stabilised to a low Reid Vapour Pressure (RVP) suitable for storage and shipment. The crude oil from this separator is then pumped to the desalter vessel before transfer to the storage tanks.Produced water from the three separators is treated to reduce the oil-in water content before discharge overboard.Gas produced in the second stage separator is passed to the LP compression train where it is raised to the pressure of the production separator. Gas from the production and test separators is cooled and fed to the 3-stage HP compression train. Before the inlet to the third stage, the gas is dehydrated by glycol contacting. Gas form the HP compressors is used for fuel (2nd stage discharge), lift, with any excess exported by pipeline.

Ross, North Sea, Encana, Europe(North),

Related Subsea Oil and Gas Companies, Products, Projects, Drilling Rigs, Pipelines and Jobs

  • Encana one of North America's largest independent gas and oil exploration producers
  • Bijupira and Salema by Enterprise Oil fields are located 250km east of Rio de Janeiro. The fields are operated by Enterprise (55%) on behalf of Odebrecht (25%) and Petrobras (20%). They range in water depths between 1,575ft and 2,900ft.
  • Oseberg Sør by Equinor field was discovered in 1984, when Norsk Hydro drilled well 30/9-3. The field is located 115km from the shore and 13km from the Oseberg field, in a water depth of 101m. The field is operated…
  • Greater Angostura by BHP Billiton The Greater Angostura field is located in 36m to 46m of water on the continental shelf, about 37km east of the Republic of Trinidad and Tobago in the eastern (Trinidadian) sector of the Eastern Venezuela…
  • Njord by Equinor is situated on Haltenbanken, in blocks 6407/7 and 6407/10, 130km north of Kristiansund and 30km west of the Draugen field. Licences were awarded to block 6407/7 in 1985 and to block 6407/10 in 1987.
  • Tui, Amokura and Pateke Reserves Area Oil Project by… Three oil fields - Tui, Amokura and Pateke reserves located in PEP 38460, the offshore Taranaki basin, New Zealand - are being developed in phases under the Tui Area Oil Project.
  • Gannet by Shell Since the original field was first discovered in 1973, a number of satellite fields have been tied into the Gannet facilities. In mid-1999, the latest phase saw Gannet G going into production with a £40…
  • Gullfaks South, Rimfaks and Gullveig Oil by Equinor lies in block 34/10 in the northern part of the Norwegian North Sea. Block 34/10 was awarded in 1978 to three Norwegian companies, Statoil (operator); Norsk Hydro; and the former Saga Petroleum.
  • Visund by Equinor field was developed using a semisubmersible steel drilling, production and quarters platform, connected to a subsea completion system. The wellheads for 21 wells are installed under the platform, with a separate template for two other…
  • Snorre by Equinor field lies in blocks 34/4 and 34/7, approximately 200km west of Floro, in Norway. Block 34/4 was awarded in 1979, while block 34/7 was awarded in 1984.
  • Ross Offshore as providing individual engineers, supervisors and managers
  • Bayu-Undan by ConocoPhillips was discovered in 1995 with the Bayu 1 exploration well and the Undan field was discovered later that year with the Undan 1 exploration well.