1. No category

02
151007
Update
01
130516
Utkast
Rev.
Stein
Risstad
Larssen
Anita
Grimsrud
Reason for Issue
Date
Prep.
Torgeir
Anda
Checked
Press Kit Jette well
Wells 25/8-E-1 H og 25/8-D-1 AH T3
No. of
Sheets:
Doc. Type
Code
Revision
Code
Area
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KA
NA
Contract
No.
System
Code
Document Number:
Project No.
JT02
NA
NA
Originator
Code
DENOR-
Discipline
Code
S
Sequence
No.
????
01
Accepted
8
Status Code
Det norske oljeselskap ASA
Press Kit Jette Well
PL 027D, PL 169C og PL 504
DOC. NO.: DG- DENOR-S-1233
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Table of Content
1
INTRODUCTION ......................................................................................................................................... 3
1.1
1.2
2
PURPOSE OF DOCUMENT ...................................................................................................................... 3
DET NORSKE OLJESELSKAP ................................................................................................................... 3
ABOUT JETTE WELL ................................................................................................................................ 3
2.1
2.2
2.3
A DESCRIPTION ..................................................................................................................................... 4
LOCATION............................................................................................................................................. 4
DISTANCES ........................................................................................................................................... 5
3
AVAILABLE VESSELS .............................................................................................................................. 5
4
NEXT OF KIN INFORMATION CENTER .................................................................................................. 6
5
THE ENVIRONMENT AND NATURAL RESOURCES IN THE AREA .................................................... 6
Det norske oljeselskap ASA
Press Kit Jette Well
PL 027D, PL 169C og PL 504
DOC. NO.: DG- DENOR-S-1233
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1 Introduction
1.1
Purpose of document
This document contains information about the Jette well.
All material and images in the press kit are for free use for editorial purposes.
1.2
Det norske oljeselskap
Det norske is a fully-fledged E&P company with exploration, development and production activities on the
Norwegian Continental Shelf. We are building one of Europe’s largest independent E&P companies.
Det norske is the operator for the producing fields Alvheim, Volund, Vilje and Jette. Det norske is also the
operator of the development of the Ivar Aasen field, as well as partner in the Johan Sverdrup field.
Det norske is partner in the enormous Johan Sverdrup field. Det norske has more than 500 employees. The
company`s headquarters are located in Trondheim, with branch offices in Oslo, Stavanger and Harstad.
Det norske is listed on Oslo Børs under the ticker “DETNOR”.
2 About Jette well
Jette well spans three licenses, PL027D, PL169C and PL 504. Det norske is the operator with 70 percent
interest. Petoro ASA is partner with 30 percent.
Jotun B
Illustration 1: Location of templates and pipelines at Jette.
Jotun A
Det norske oljeselskap ASA
Press Kit Jette Well
PL 027D, PL 169C og PL 504
2.1
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A description
The installation is on the seabed and consists of two production wells. Oil and gas from the wells will be
transported from the two wells through two pipes, respectively 105 and 143 meters to a pipeline manifold
(PLEM - Pipeline End Manifold). The oil will further be transported in a six kilometer pipeline to the Jotun B
installation. In addition there will be a six kilometer cable (umbilical) from Jotun B to a subsea distribution unit
(SDU) at Jette. There are both electrical and hydraulic cables, as well as gas from the distribution unit to the
two Jette wells. The gas is used to increase the pressure and thus lift the oil up through the well.
2.2
Location
The Jette field consists of two small separate oil accumulations, Jette north and Jette south. The two wells
are located in block 25/7 and 25/8, 180 km west of Haugesund, and six kilometers south of the Jotun field.
Water depth in the area is approximately 127 meters.
Illustration 2: Location of Jette
Det norske oljeselskap ASA
Press Kit Jette Well
PL 027D, PL 169C og PL 504
2.3
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Distances
Distances and time of transit from Jette to various locations (approximately).
1 nautical mile = 1882 meters
3 Available vessels
Available amount of dispersant: Stril Power (Jotun): 75 m3, Esvagt Capri
(Jotun): 25 m3, Havila Troll: 50 m3, Esvagt Stavanger: 48 m3. A total of
198 m3 (Dasic NS). The actual quantities on board the boats may vary
from these figures.
Stril Power
Esvagt Capri
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Det norske oljeselskap ASA
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PL 027D, PL 169C og PL 504
Havila Troll
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Esvagt Stavanger
4 Next of kin information center
The next of kin information center will be at Thon Hotel Sandnes.
5 The environment and natural resources in the area
Key environmental and natural factors that have been identified are the following:
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The flows are characterized by wind-driven surface currents and deep longitudinal currents from the
Atlantic, mainly from the west / southwest.
No deposits of coral and sponge environments.
There may be seabirds in the area. The deposits on the sea will be
spread. Environmental risk is assessed to be low and acceptable.
There are several species of fish that spawn in this part of the North Sea, mainly during spring. Jette
is within the spawning area for pollock. The mackerel spawns during summer (May-July), but
spawning areas are located much further south in the North Sea.
All relevant species in the area spawn pelagic and over large areas. Environmental risk to fish is very
low.
It may sometimes be small and larger groups of whales in the area.
Jette is an oil reservoir with Jotun Tau oil. This is a paraffinic oil with a high wax content. Reservoir
fluid will contain some gas which will be released by a possibly emissions.
It is not identified specific challenges in this area that hampers mechanical or chemical control.
Weather statistics shows that the significant wave height is less than 4 m Hs, respectively 89
percent, 98 percent, 85 percent and 75 percent of the time during spring, summer, autumn and
winter season.
The oil is dispersible, but has low potential for dispersal. The use of dispersants is included as a
supplement to mechanical control.
• Emergency preparedness systems at Jotun /Balder may be mobilized within two hours, with both
mechanical and chemical control.
Rented towing vessels will be used if necessary (standby vessels and supply vessels),
tugboats from NOFO (supply vessels and fishing vessels) and rescue boats.
An oil spill will most likely not arrive coastal areas (probability of 5 to 10 percent, some areas 10 to 15
percent), and drift time to the coastline is long. There are therefore no response time requirements
for mobilization of oil spill systems in the coastal zone.