Maersk Oil is a Danish oil and gas company owned by the A. P. Moller-Maersk Group. The company was established in 1962 when Maersk Group was awarded a concession for oil and gas exploration and production in the Danish sector of the North Sea. In 1986, Maersk Oil took over operatorship of the Dansk Undergrunds Consortium-owned fields in the Danish section of the North Sea.Maersk Oil is engaged in exploration for and production of oil and natural gas in the North Sea Danish, British, and Norwegian sectors, Qatar, Algeria, Kazakhstan, Angola, Gulf of Mexico , Brazil, and Greenland. Most of these activities are not 100% owned, but are via membership in consortiums.Total oil production is more than 600,000 barrels per day and gas production is up to some 1 billion cubic feet per day . Production is from the North Sea, from both the Danish and British sectors, offshore Qatar, as well as Algeria, Kazakhstan and Brazil.Maersk Oil has been preliminarily awarded two new exploration licenses, PL472 and PL474, in Norway's latest licensing round in February 2008.Oil and gas activities provided A.P. Moller - Maersk with 22% of its revenue and 68% of its profit in 2008. Wikipedia.
Ross J.A.,Maersk Oil |
Peakall J.,University of Leeds |
Keevil G.M.,University of Leeds
Sedimentology | Year: 2014
Sandstone-hosted intrusions are found in a wide variety of environments, but remain poorly understood compared with their mudstone-hosted counterparts. In particular, they remain largely unrecognized in the subsurface, in part because they are problematic to image in seismic data. This study reports on the facies and fluid flow associated with a 20 000 km3 sandstone intrusion province in Utah, USA. Forming a small portion of this intrusion province, the intrusions cropping out in Kodachrome Basin State Park display a very wide array of facies and morphologies, factors which would make their identification in core a significant challenge. Remobilized sediment is shown to have been injected at least 200 m vertically from its source, with flow prolonged enough to concentrate heavy minerals in placer-style deposits at the pipe margins. Evidence for lateral pipe migration and for associated broader fluidization regions is also presented. A new approach to estimating flow parameters in injectites is implemented herein, and indicates that previous work has overestimated velocities and flow Reynolds numbers by up to two orders of magnitude. Flow modelling suggests turbulent flow in the pipes that is consistent with field observations of erosive margins and chaotic internal structures. Post-emplacement, these pipes remained as long-term fluid conduits, as revealed by their diagenetic history, focussing and facilitating flow of extraformational fluids, despite the relatively high porosity and permeability of the aeolian host strata. © 2014 The Authors Sedimentology © 2014 International Association of Sedimentologists.
Serie C.,University of Manchester |
Huuse M.,University of Manchester |
Schodt N.H.,Maersk Oil
Geology | Year: 2012
Gas hydrates in the shallow subsurface form one of the largest reservoirs of methane in the global organic carbon cycle. Seafloor seeps and associated features represent the venting points of methane released from the shallow lithosphere to the hydrosphere and atmosphere. Here we document the discovery of seep-related seafloor mounds in the Kwanza Basin, offshore Angola, and employ high-resolution three-dimensional seismic analysis to unravel the subsurface plumbing system and the origin of mounds. Mounds with distinct morphologies and geophysical signatures illustrate different development stages associated with the formation and dissociation of shallow gas hydrate, linked to thermogenic fluid migration along salt diapir flanks draining deeply buried salt minibasins. The mounds are more than an order of magnitude larger than previously described submarine hydrate pingoes, and comparable to hydraulic pingoes commonly found in terrestrial periglacial environments, suggesting hydrate volumes of individual mounds up to 1.1 × 106 m3 (equivalent to 2.0 × 108 m3 of methane gas). The interpretation of seismically well-defined seep-related seafloor mounds brings new insight to the occurrence and development of concentrated near-surface gas hydrate accumulations and their relationship with thermogenic fluid migration and host sediment properties along continental margins. © 2012 Geological Society of America.
Duffy O.B.,University of Manchester |
Gawthorpe R.L.,University of Bergen |
Docherty M.,Maersk Oil |
Brocklehurst S.H.,University of Manchester
Basin Research | Year: 2013
The Southern Tail-End Graben, Danish Central Graben, is characterized by a lateral variation in the thickness and mobility of pre-rift Zechstein Supergroup evaporites, allowing investigation of how supra-basement evaporite variability influences rift structural style and tectono-stratigraphy. The study area is divided into two structural domains based on interpretations of the depositional thickness and mobility of the Zechstein Supergroup. Within each domain, we examine the overall basin morphology and the structural styles in the pre-Zechstein and supra-Zechstein (cover) units. Furthermore, integration of two-way travel-time (TWT)-structure and -thickness maps allows fault activity and evaporite migration maps to be generated for pre- and syn-rift stratal units within the two domains, permitting constraints to be placed on: (i) the timing of activity on pre-Zechstein and cover faults and (ii) the onset, duration and migration direction of mobile evaporites. The northern domain is interpreted to be free from evaporite-influence, and has developed in a manner typical of brittle-only, basement-involved rifts. Syn-rift basins display classical half-graben geometries bounded by thick-skinned faults. In contrast, the southern domain is interpreted to be evaporite-influenced, and cover structure reflects a southward increase in the thickness and mobility of the Zechstein Supergroup evaporites. Fault-related and evaporite-related folding is prominent in the southern domain, together with variable degrees of decoupling of sub-Zechstein and cover fault and fold systems. The addition of mobile evaporites to the rift results in: (i) complex and spatially variable modes of tectono-stratigraphic evolution; (ii) syn-rift stratal geometries which are condensed above evaporite swells and over-thickened in areas of withdrawal; (iii) compartmentalized syn-rift depocentres; and (iv) masking of rift-related megasequence boundaries. Through demonstrating these deviations from the characteristics of rifts free from evaporite influence, we highlight the first order control evaporites may exert upon rift structural style and the distribution and thicknesses of syn-rift units. © 2012 The Authors. Basin Research © 2012 Blackwell Publishing Ltd, European Association of Geoscientists & Engineers and International Association of Sedimentologists.
Raussen S.,Maersk Oil |
Lykke-Andersen H.,University of Aarhus |
Kuijpers A.,Geological Survey of Denmark
Terra Nova | Year: 2013
The tectonics of the Virgin Islands Basin are controlled by the plate boundary between the Puerto Rico-Virgin Islands Microplate and the stable part of the Caribbean Plate. Several contradicting theories about the formation and development of this basin have previously been proposed. As part of the Danish Galathea 3 expedition, extensive marine geological investigations of the basin were carried out in March 2007 including sediment coring and acquisition of multi-beam and two-dimensional seismic data. This paper represents a summary of the key observations from the multi-beam and the seismic data set. The interpretation of these observations leads to the proposition of a tectonic model for the Virgin Islands Basin. The model consists of N-S to NW-SE directed extension combined with E-W trending sinistral strike-slip and the new structural evidence from the Virgin Islands Basin is entirely consistent with the most recently published GPS data. © 2013 Blackwell Publishing Ltd.
News Article | November 9, 2015
Maersk Oil, a wholly owned subsidiary of AP Moller-Maersk AS of Copenhagen, has agreed to acquire interest in three onshore exploration licenses in Kenya and two more in Ethiopia from Africa Oil Corp.