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Experience

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West of Shetland and Faeroes

Experience in West of Shetland and Faeroes

We have amassed a wealth of experience in this region following analytical studies and interpretative/review projects; one particular project involved refining sequence and lithostratigraphic picks for >200 exploration, appraisal and development wells over several years.

Algeria

Experience in Algeria

Nick Miles, our in-house Palaeozoic expert, probably has unrivalled experience in the Palaeozoic palynostratigraphy of Algeria, including the Saharan Platform (Cambrian and Ordovician), the Ghadames/Berkine Basin (Ordovician, Silurian, Devonian, Carboniferous, Triassic and Jurassic), the South Atlas Region (Cambrian, Ordovician, Silurian, Devonian, Triassic and Jurassic) and the Illizi Basin (Ordovician, Silurian, Devonian, Jurassic and Cretaceous).

Greenland

Experience in Greenland

John Gregory has unique experience gained over 6 years working in academic association with CASP (Cambridge Arctic Shelf Programme). He has conducted micropalaeontology analyses and been involved in stratigraphical integration of ammonite-dated, Jurassic and Cretaceous on-shore sections (>100 separate localities in Kangerlussaq, Hold with Hope, Geographical Society O, Wollaston Foreland, Clavering O, Jameson Land and Milne Land). In addition, he has studied previously un-recognised Tertiary sections.

Additional related Boreal experience has been gained of Jurassic outcrop successions from Svalbard (Spitsbergen).

Far East and the Antipodes

Experience in Far East and the Antipodes

Our stratigraphers have substantial experience in this region, having during the course of their careers worked on well sections from Myanmar/Burma (Gulf of Martaban, Tertiary), Thailand (offshore, Tertiary), Vietnam (offshore, Tertiary), Laos, China (Mongolia and the Bohai Basin, Tertiary), the Philippines (Leyte Island, Tertiary), Indonesia (Natuna Basin, Kai Besar, Seram and West Papua, Permian to Tertiary), Timor (Triassic), Papua New Guinea (Papuan Basin, Jurassic and Cretaceous), Sarawak (Tertiary), Brunei (Tertiary), Australia (Browse Basin, northwestern shelf, Cretaceous-Jurassic) and New Zealand (Taranaki Basin, Upper Cretaceous and Palaeogene). Marcus Jakeman has substantial experience as a wellsite palynologist (>40 wells, both onshore and offshore) in West Irian, Indonesia and Papua New Guinea, including long-duration assignments of up to 2 months.

South China Seas
PetroStrat has recently conducted a substantial multi-well study in the South China Sea (Qiongdongnan Basin), involving >1400 micro- and nannopalaeontological analyses and a review of pre-existing data. This was followed up by long duration, multi-well, integrated wellsite services (micro- and nannopalaeontology).

Sakhalin, Russia
PetroStrat also has experience of working on both academic (with CASP) and industrial projects from Sakhalin covering the Neogene to Cretaceous micropalaeontology (including diatoms and radiolarians).

Latin America

Experience in Latin America

PetroStrat has extensive experience in Brazil’s Rio Grande, Espirito-Santo, Santos and Campos basins, including analysis of deepwater wells, multi-well correlation and review projects.

In addition, we have worked on well/outcrop material from Baja in Mexico, Venezuela, Columbia, Guyana, Suriname, Bolivia, Ecuador, Peru, Uruguay and Argentina. The detailed (sub-seismic) stratigraphy of the eastern South American margin is often complex due to multiple closely-spaced unconformities (e.g. Campos Basin) and/or major structural considerations (e.g. eastern Trinidad). Hence “traditional” or widely-spaced biostratigraphic analyses may not provide a sufficiently detailed stratigraphic framework. A focussed, high resolution approach is required to provide a true understanding of the stratigraphy. We have established a strong niche in Latin America due to our regional experience and high technical standards.

Libya

Experience in Libya

Our stratigraphers have a wealth of experience in Libya, having during the course of their industrial careers analysed some 200 Libyan wells with sections ranging in age from Cambrian to Neogene. We have extensive experience in the Cretaceous and Tertiary stratigraphy of the Sirt Basin, Tripolitania and offshore Benghazi. In addition, our stratigraphers have substantial experience in the palynostratigraphy of the Nubian Sandstone and the Palaeozoic successions of the Ghadames and Murzuq Basins, including the Ordovician Hawaz, Melez Shuqran and Mamuniyat Formations and the Silurian of the northern Ghadames (Acacus Formation). We have experience of wellsite biomonitoring offshore Benghazi on an H2S prone wildcat (a 9 week offshore assignment).

Middle East

Experience in Middle East

Our personnel have considerable experience within the Middle East and Arabian Peninsula, having worked on many Palaeozoic and Mesozoic sections in Saudi Arabia, Syria, Jordan, Kuwait, Qatar, the UAE, Oman, Yemen and Egypt’s Western Desert.

We have recently become involved in work from the Mesozoic of Iraq including the giant Rumaila Field.

Morocco

Experience in Morocco

PetroStrat has provided wellsite services and conducted detailed post-well analyses (micropalaeontology & nannopalaeontology) on several deepwater exploration wells offshore Morocco. In addition, our stratigraphers have experience in the Mesozoic palynology of the Anti-Atlas Region.

Namibia & South Africa

Experience in Namibia & South Africa

PetroStrat has recently completed a substantial proprietary multi-well study on selected deepwater wells from the Orange Basin, offshore South Africa. Results are comparable with several Namibian wells we analysed some years ago.

North Sea and NW Europe

Experience in North Sea and NW Europe

Norway

Collectively we have extensive experience offshore Norway (>150 wells analysed), having worked on the chalk fields of the Central North Sea and numerous clastic Tertiary to Late Cretaceous sections from the North and South Viking Grabens, the Central Graben and the Møre Basin, including the Ormen Lange Field. In addition our staff have analysed a number of well sections from Mid Norway (including deepwater exploration wells) and the Barents Sea. We have provided wellsite services on many Norwegian wells, including ‘biosteering’ long-reach chalk development wells.
PetroStrat has recently completed a non-proprietary study entitled “The Lysing and Upper Lange Formations; A High Resolution Stratigraphy”. This report provides a stratigraphic framework for assessing reservoir development within the Mid Cretaceous on the margins of the Halten Terrace and Vøring Basin, offshore Mid Norway.

North Sea (UK, Norway, Denmark & Holland)
The North Sea remains one of our core areas. We have particularly strong, state-of-the-art expertise in the following areas:-

  • Tertiary clastics (Early Paleocene to Pliocene)
    PetroStrat has extensive experience of the Tertiary stratigraphy of the Central and Viking Graben areas, having assisted in the development of >20 UKCS fields that produce from Eocene and Paleocene reservoirs, providing wellsite services on over 40 wells (in order to pick casing points and/or monitor reservoir stratigraphy).Our high resolution approach has enabled subdivision of Eocene sands within the Frigg, Tay, and Skroo depositional systems of the lower Horda Formation (Unit H1), and within the Balder and Sele Formations. In addition, detailed subdivision of the Middle Eocene Horda Formation (Unit H2) at wellsite has permitted accurate positioning of casing points above Tay reservoir sands.Within the ‘earliest’ Eocene we have demonstrated the existence of sands within units S3 and S2a of the Sele Formation, in addition to the S2B (Cromarty) sands. Differentiation of these Sele sand units (via high resolution biostratigraphy) has proven vital to the development of post Forties reservoir sands in several fields.Within the Paleocene, PetroStrat have a wealth of experience within the Lista and Maureen Formations of the UK sector and Norway, having completed studies on the Andrew/Heimdal and Maureen/Ty sands in the Viking Graben and on the Andrew/Mey and Maureen sands of the Central Graben area.

    PetroStrat has unrivalled experience in the palynostratigraphy of the Forties Sandstone Member, having undertaken intensive studies on over 100 well sections from 12 fields that produce from Forties reservoirs. We have demonstrated that Forties sands vary in age from field to field, and between wells within individual fields. We are actively involved with development drilling on several fields, providing non-acidic wellsite palynological services to assist with picking casing points and geosteering highly deviated and horizontal wells.

  • Chalk (Late Cretaceous and Early Paleocene)
    We have vast experience in chalk sections, including wellsite monitoring or “biosteering” of many long-reach development wells in the UK, Danish and Dutch sectors (and the giant Norwegian fields).
  • Early Cretaceous
    PetroStrat personnel have extensive biostratigraphic experience of Early Cretaceous Fields and single exploration wells throughout the UK North Sea including the Central Graben, Fisher Bank, South Viking Graben, North Viking Graben and West of Shetlands. This has often included extensive multi-well re-analysis/review of previous biostratigraphic data of variable quality and vintage, followed up by infill analysis. In addition we have worked on Danish Early Cretaceous Reservoirs including the Valdemar, Tyra and Adda fields, extensive review of vintage data and re-analysis of Lower Cretaceous sections.This work has included numerous wellsits in the UK, Norwegian, Danish and Dutch sectors, including horizontal biosteering in Early Cretaceous reservoirs and assisting casing and coring picks within the Cromer Knoll Group.
  • Jurassic
    We have strong expertise in North Sea Jurassic micropalaeontology/palynology and stratigraphy and a particular expertise in radiolaria following John Gregory’s Ph.D. research. PetroStrat has considerable experience in integration and re-interpretation of large regional datasets (biostratigraphy, lithostratigraphy and sequence stratigraphic correlations) within the Moray Firth, Central and Viking Grabens. Micropalaeontology has proven invaluable during wellsite monitoring of HP/HT wells where palynology is not viable (due to steep thermal maturation gradients).

NW Europe
Within North West Europe, many of our staff have worked on sections from a variety of countries and stratigraphical intervals including from Portugal, Spain, France, Poland, Romania, Bulgaria, Ukraine, Kazakhstan and Russia. Please email for further information of specifics.

Norway

Experience in Norway

Collectively we have extensive experience offshore Norway (>150 wells analysed), having worked on the chalk fields of the Central North Sea and numerous clastic Tertiary to Late Cretaceous sections from the North and South Viking Grabens, the Central Graben and the Møre Basin, including the Ormen Lange Field. In addition our staff have analysed a number of well sections from Mid Norway (including deepwater exploration wells) and the Barents Sea. We have provided wellsite services on many Norwegian wells, including ‘biosteering’ long-reach chalk development wells.

PetroStrat has recently completed a non-proprietary study entitled “The Lysing and Upper Lange Formations; A High Resolution Stratigraphy”. This report provides a stratigraphic framework for assessing reservoir development within the Mid Cretaceous on the margins of the Halten Terrace and Vøring Basin, offshore Mid Norway.

Pakistan

Experience in Pakistan

We have considerable experience in Pakistan having analysed wells and outcrop sections from the Lower and Middle Indus Basin and Makran region. Studied sections have ranged in age from Permian to Quaternary. We have particular expertise in the Makran area, including analysis of Neogene outcrops and shallow boreholes.

Rockall Trough

Experience in Rockall Trough

Our stratigraphers have worked on several wells and shallow boreholes in the UK and Irish Rockall areas, covering the Neogene to Jurassic intervals. Our experience includes studies of on-shore boreholes in the outer Hebrides. Additionally, John Gregory’s Ph.D. thesis covered the Jurassic micropalaeontology and stratigraphy of on-shore, ammonite-dated type sections from Skye, Mull, Raasay, Morvern and Eigg.

South China Sea

Experience in South China Sea

PetroStrat has recently (2008-2009) conducted a substantial multi-well study in the South China Sea (Qiongdongnan Basin), involving >1400 micro- and nannopalaeontological analyses and a review of pre-existing data.

Experience in

US Gulf of Mexico

Experience in US Gulf of Mexico

PetroStrat has recently gained significant experience in the deepwater Gulf of Mexico, following detailed multi-disciplinary analysis of several long Tertiary-Mesozoic well sections.

India

Experience in India

Within India, our stratigraphers have experience in the micropalaeontology and palynology of the Kutch Basin (Jurassic to Miocene). In addition, we have experience in Tertiary micropalaeontology and palynology offshore Bangladesh.

North Africa and the Mediterranean

Experience in North Africa and the Mediterranean

Algeria/Tunisia

Nick Miles, our in-house Palaeozoic expert, probably has unrivalled experience in the Palaeozoic palynostratigraphy of Algeria, including the Saharan Platform (Cambrian and Ordovician), the Ghadames/Berkine Basin (Ordovician, Silurian, Devonian, Carboniferous, Triassic and Jurassic), the South Atlas Region (Cambrian, Ordovician, Silurian, Devonian, Triassic and Jurassic) and the Illizi Basin (Ordovician, Silurian, Devonian, Jurassic and Cretaceous). Other staff have significant experience of the Tertiary-Cretaceous offshore basins.

Libya
Our stratigraphers have a wealth of experience in Libya, having during the course of their industrial careers analysed some 200 Libyan wells with sections ranging in age from Cambrian to Neogene. We have extensive experience in the Cretaceous and Tertiary stratigraphy of the Sirt Basin, Tripolitania and offshore Benghazi. In addition, our stratigraphers have substantial experience in the palynostratigraphy of the Nubian Sandstone and the Palaeozoic successions of the Ghadames and Murzuq Basins, including the Ordovician Hawaz, Melez Shuqran and Mamuniyat Formations and the Silurian of the northern Ghadames (Acacus Formation). We have experience of wellsite biomonitoring offshore Benghazi on an H2S prone wildcat (a 9 week offshore assignment).

Morocco
PetroStrat has provided wellsite services and conducted detailed post-well analyses (micropalaeontology & nannopalaeontology) on several deepwater exploration wells offshore Morocco and Miocene to Jurassic onshore wells in the Fez region. In addition, our stratigraphers have experience in the Mesozoic palynology of the Anti-Atlas Region. Recently, we have carried out a number of regional reviews of legacy biostratigraphic data (multiple wells of differing vintages) and conducted infill analysis of a number of wells to help re-interpret the original data.

PetroStrat has provided wellsite services during exploration and appraisal drilling in Morocco (both on- and offshore), Libya and Egypt.

Mediterranean areas
Our staff also have experience of biostratigraphic analysis in Malta (all Tertiary sections; analysed for micropalaeontology and nannopalaeontology), as well as regional review work of some vintage wells offshore Malta and Gozo. Several staff have worked on Tertiary-Triassic sections in Italy and Greece, as well as Tertiary-Cretaceous sections from Turkey.

Liberia

Experience in Liberia

Ghana

Experience in Ghana

Cote d’Ivorire

Experience in Cote d’Ivorire

West and South Africa

Experience in West and South Africa

Our stratigraphers have vast extensive experience in the Cretaceous (including pre-salt) and Cenozoic biostratigraphy and sequence stratigraphy of the entire West African margin, having during the course of their industrial careers analysed >350 wells from Mauritania, Senegal, Ivory Coast, Liberia, Ghana, Sierra Leone, Togo, Nigeria, Cameroon, Equatorial Guinea, Gabon, Congo, Angola, Namibia and South Africa. PetroStrat has provided wellsite services during exploration and appraisal drilling in Angola, Mauritania, Cameroon, Liberia, Ivory Coast, Sierra Leone and Ghana. In addition we have conducted rapid turnaround analyses from shore-base in Angola.

PetroStrat has particularly detailed experience offshore Ghana. Since 2007 we have serviced several drilling campaigns offshore Ghana and this included the provision of wellsite services for the major discoveries offshore Ghana. We are also been involved with post-well analysis and integration for the majority of companies drilling Jubilee Field and similar plays. Since 2013 PetroStrat has provided extensive post-well routine analytical services from offshore Angola including on a number of discoveries and development well and fields.

Namibia & South Africa (Orange Basin)
PetroStrat has recently completed a substantial proprietary multi-well study on selected deepwater wells from the Orange Basin, offshore South Africa. Results are comparable with several Namibian wells and data review we completed some years ago

South Africa

Experience in South Africa

Namibia

Experience in Namibia

South Africa

Experience in South Africa

Ireland

Experience in Ireland

NW Europe

Experience in NW Europe

USA

Experience in USA

Canada

Experience in Canada

Tunisia

Experience in Tunisia

Egypt

Experience in Egypt

Saudi Arabia

Experience in Saudi Arabia

Iraq

Experience in Iraq

Iran

Experience in Iran

Trinidad

Experience in Trinidad

Mexico

Experience in Mexico

Columbia

Experience in Columbia

Brazil

Experience in Brazil

Argentina

Experience in Argentina

Russia

Experience in Russia

Romania

Experience in Romania

Poland

Experience in Poland

Tanzania

Experience in Tanzania

Mozambique

Experience in Mozambique

Papua New Guinea

Experience in Papua New Guinea

New Zealand

Experience in New Zealand

Brunei

Experience in Brunei

Australia

Experience in Australia

South-West Asia / Indian Subcontinent

Experience in South-West Asia / Indian Subcontinent

India
Within India, our stratigraphers have experience in the micropalaeontology and palynology of the Kutch Basin (Jurassic to Miocene).

Bangladesh
We have experience of Tertiary micropalaeontology and palynology offshore Bangladesh.

Pakistan
We have considerable experience in Pakistan having analysed wells and outcrop sections from the Lower and Middle Indus Basin and Makran region. Studied sections have ranged in age from Permian to Quaternary. We have particular expertise in the Makran area, including analysis of Neogene outcrops and shallow boreholes.

Caribbean

Experience in Caribbean

PetroStrat has extensive experience in Trinidad and Tobago including wellsite monitoring via micropalaeontology and nannopalaeontology of >20 exploration and development wells offshore eastern Trinidad (with several long-duration assignments of 1 to 4 months). Such is the structural complexity offshore eastern Trinidad (a “geologist’s graveyard”) that wellsite biostratigraphy is often required to assist accurate placement of wells. Routine analysis has also been undertaken of many Cenozoic and Cretaceous well/outcrop sections from onshore Trinidad, the Gulf of Paria (1000+ micro-, nannopalaeontology and palynology samples from multiple wells), the Columbus Field, and South East Trinidad.

Other Caribbean locations analysed primarily using micropalaeontology include Antigua, Anguilla (Tertiary) and Cuba (Cretaceous-Tertiary).

West of Britain and Ireland

Experience in West of Britain and Ireland

West of Shetland and Faeroes

We have amassed a wealth of experience in this region following analytical studies and interpretative/review projects; one particular project involved refining sequence and lithostratigraphic picks for >200 exploration, appraisal and development wells over several years.

Rockall Trough and West of Ireland
Our stratigraphers have worked on a number of wells from the Rockall area, Porcupine Basin, Slyne Basin and Celtic Sea Basins covering the Neogene to Jurassic intervals.

West of Scotland
Our experience includes studies of on-shore boreholes in the Outer Hebrides. Additionally, John Gregory’s Ph.D. thesis covered the Jurassic micropalaeontology and stratigraphy of on-shore, ammonite-dated type sections from Skye, Mull, Raasay, Morvern and Eigg.

North America (Canada & USA)

Experience in North America (Canada & USA)

USA

  • Gulf of Mexico
    PetroStrat has recently gained significant experience in the deepwater Gulf of Mexico, following detailed multi-disciplinary analysis of several long Tertiary-Mesozoic well sections both at the wellsite and on post-well projects.
  • Alaska
    We have experience of providing integrated Palynology and Micropalaeontology of the Alaskan area including review of vintage data-sets.

Canada

  • Atlantic Margins
    Many PetroStrat staff members have extensive experience of the Atlantic Canadian offshore regions including Newfoundland, Nova Scotia and Grand Banks. This has involved multi-well review of vintage data and integration with new analyses for all disciplines (Tertiary-Jurassic). Additional experience has been to provide wellsite biostratigraphy on several deeper water wells offshore Newfoundland.
  • Arctic Canada
    PetroStrat has industrial and academic experience associated with the Arctic Canadian area including the Beaufort Sea and Baffin Island areas. The latter area has included academic collaboration with CASP using Devonian-Cretaceous micropalaeontology to integrate and calibrate with their macrofossil data.
  • North America Unconventionals
    We have gained particular experience providing integrated biostratigraphy for a variety of unconventional reservoirs and sources including the Oil Sands and Duvernay Shale from Canada and the Marcellus Shale and Eagleford Formation from the USA.

East Africa

Experience in East Africa

Our stratigraphers have extensive experience of the stratigraphy of the African Margins, including Neogene to Cretaceous sections on the East African Margin. This includes detailed analysis of sections from Tanzania and Mozambique (including wellsite support) with some experience gained in Madagascar, Ethiopia and Eritrea.

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