CecilieJul 29, 2007Cecilie is a satellite development to the Siri Field with one unmanned wellhead platform, which is provided with a helideck. The unprocessed production is transported to the Siri platform where the oil produced is processed and exported to shore via tanker.The gas produced at the Cecilie Field is injected into the Siri Field together with injection water, and Siri supplies Cecilie with injection water and lift gas.
NiniJul 29, 2007The Nini Field was discovered in 2000, and production from the field commenced from an unmanned satellite platform to the Siri Field in 2003. DONG E&P A/S is the operator. The Nini Field is a sandstone field situated in the Siri Fairway. The Nini Field has proved to consist of a number of apparently separate sandbodies. On the basis of information from the wells drilled, an oil production potential has been identified in the Ty formation immediately above the chalk. A development plan for this part of the Nini Field was approved at the beginning of 2006.
ValdemarJul 29, 2007The Valdemar Field consists of a northern reservoir called North Jens and a southern reservoir called Bo, which are both anticlinal chalk structures associated with tectonic uplift. The development of a recovery technique based on drilling long horizontal wells with numerous sand-filled, artificial fractures has made it possible to exploit the Lower Cretaceous reservoir commercially. In addition, recovery takes place from Danian/Upper Cretaceous layers.
Tyra SoutheastJul 29, 2007The Tyra Southeast Field is an anticlinal structure created by a slight tectonic uplift of Upper Cretaceous chalk layers. The structure is divided into two blocks separated by a NE-SW fault zone. The relief is less pronounced in this formation than in the Tyra Field. The structure is part of the major NW-SE uplift zone that also comprises the Roar, Tyra and Igor Fields.
TyraJul 29, 2007The Tyra Field is an anticlinal structure created by tectonic uplift. As far as natural gas supplies are concerned, the Tyra Field acts as a buffer, so that if the other Danish oil and gas fields do not produce sufficient gas to meet the contractual obligation to supply gas to DONG Naturgas A/S, the balance is supplied from the Tyra Field.
SvendJul 29, 2007The Svend Field is an anticlinal structure, induced through salt tectonics. This led to fracturing of the chalk in the reservoir and divided the field into a western and eastern block, separated by a major fault. Oil and gas production from the Svend Field is based on primary recovery at a pressure above the bubble point of the oil.
South ArneJul 29, 2007The South Arne Field installations comprise a combined wellhead, processing and accommodation platform. The processing facilities consist of a plant that separates the hydrocarbons produced as well as gas-processing facilities. The platform also houses equipment for water injection. In order to prevent the depositing of sparingly soluble salts in and around the injection wells, a system for removing the sulphate ions from the seawater prior to injection has been installed.
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SkjoldJul 29, 2007The Skjold Field is an anticlinal structure, induced through salt tectonics. During the first years after production start-up, oil was produced from the crestal, central part of the reservoir. Water injection was initiated in the reservoir in 1986. Today, oil from the Skjold Field is mainly produced from horizontal wells at the flanks of the reservoir. The production and injection wells are placed alternately in a radial pattern.
RolfJul 29, 2007Production from the Rolf Field takes place from two wells drilled in the crest of the structure. The oil is forced towards the producing wells by the water flowing in from an underlying water zone. The natural influx of water from the water zone corresponds to the volume removed due to production in the central part of the structure. To date, it has not been found necessary to add energy to the reservoir by water injection.
RoarJul 29, 2007Production from the Roar Field is based on the aim of optimizing the production of liquid hydrocarbons in the Tyra Field. This presupposes that the Tyra reservoir pressure is stabilized by maximizing production from the other gas fields and thus minimizing the drainage from the Tyra Field. Therefore, increased production from the Roar Field helps optimize the Tyra production conditions.
LulitaJul 29, 2007The Lulita Field is a structural fault trap with a Middle Jurassic sandstone reservoir. The accumulation consists of oil with a gas cap. The production of oil and gas is based on natural depletion.
KrakaJul 29, 2007The production of oil and gas from Kraka is based on natural depletion, meaning no secondary recovery techniques are used, either in the form of gas or water injection. Attempts are currently being made to optimize production so as to liberate as much oil, and as little water, as possible from the tight chalk formation.
HaraldJul 29, 2007The Harald Field consists of two accumulations, Lulu (Harald East) and West Lulu (Harald West), which contain gas mainly. Recovery from both the Lulu and West Lulu reservoir takes place by letting the gas expand, supplemented by a moderate, natural influx of water into the reservoir. Production from the Harald Field is based on the aim of optimizing the production of liquid hydrocarbons in the Tyra Field. This presupposes that the Tyra reservoir pressure is stabilized by maximizing production from the other gas fields and thus minimizing the drainage from the Tyra Field.
Halfdan including Sif and IgorJul 29, 2007The recovery of oil and gas from Halfdan is based on pressure support from water injection. The wells are arranged in a pattern of alternate production and injection wells with parallel well trajectories, about 180 metres apart. The injection wells are stimulated with acid, which makes it possible to inject large volumes of water. The regular spacing of the wells optimizes the flooding of the reservoir, thus enhancing recovery.
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