International Energy Quality Resource Center

Wells & Logs

The International Wells Database offers unique worldwide coverage of all exploratory and development wells drilled to date and to our knowledge. Well records contain basic header attributes, such as surface location, operator, depth, dates and drilling parameters, but also include comprehensive downhole data, including tests and formation tops.

  • 3,628 wells were added during the first half of 2017 bringing the total number of wells to more than 777,175
  • Of these, 2,693 were related to current industry activity and 935 were historical wells newly acquired following successful liaison with governments, country correspondents and operators
  • More than 83,663 wells were updated
Data Enhancements - June 2017

Key Highlights - 2017 (June)

  • Algeria: updated 108 wells, including 328 test results
  • Australia: 275 wells updated with header data
  • Australia: 13,862 tops entered in 2,419 wells in Queensland
  • Argentina: 161 unconventional wells entered
  • Mexico: API numbers entered for 350 wells
  • Russia: names updated in 1,400 wells, TD updated in 80 wells (SOBR data)
  • Spain: wells database review and update (846 wells were checked)

Tops / Stratigraphy

  • Italy: entered 436 tops in 30 wells in Italy
  • UK: 845 tops entered in 37 wells (UK Tops 141st) Quality Goal
  • UK: 1,011 tops entered in 46 wells (UK Tops 142nd) Quality Goal
  • Germany: 1,398 tops entered in 62 wells in Germany

Location/Coordinates Quality Projects

  • Algeria: 1,416 wells validated using imagery and flag assigned and 430 datum updated from Unavailable to Nord Sahara 1959
  • Argentina: 48,782 wells validated using imagery and flag assigned
  • United States: FSS Zone X updated to NPRA for 156 Alaskan wells
  • Russia: amended coordinates in 2,250 wells (added datum and more precise coordinates)
  • Ecuador: 43 wells received reliable coordinates with datum in Drago field
  • Qatar: 1,094 wells updated including 565 wells from UNV to reliable datum. Now all Qatar wells have reliable/assumed datum
  • Indonesia (Kalimantan): Geodetic datum updated in 9,245 wells
  • Brunei - Malaysia: 2,715 well datum updated including 2,635 from Unavailable to reliable datum
  • Angola: 572 wells have been validated by satellite imagery and 244 have been assigned to Camacupa datum
Data Enhancements - 2016

Key Highlights - 2016

  • Australia – Entered 75 CBM wells in Queensland and updated 84 CBM wells from planned to completed
  • Algeria – Entered 41 exploratory wells and updated 74
  • Argentina – Entered 274 unconventional development wells
  • Bangladesh – Updated 132 exploration wells and 78 development wells with improved datum
  • Brazil – Entered bottom hole coordinates for 2,318 wells
  • Brazil – Populated API well name for 51 wells
  • Brazil – Updated start and end dates in 588 historical wells
  • China – Reviewed content consistency for 256 wells
  • Croatia – Updated 44 wells with 16 dates, 11 coordinates, 39 ground level/water depths and entered 40 bottom hole formations, 38 stratigraphy, 654 sampling, 41 casings and 84 tests
  • Datum Review Project
    • Peru – Updated 15,765 coordinates including 1,072 wells from unavailable to reliable datum
    • Indonesia – Updated X,XXX coordinates including X,XXX wells from unavailable to reliable datum
    • Kuwait – Updated 655 wells
    • Falkland Islands, Guatemala, Guyana, Honduras, Panama and Suriname – Updated 1,028 well datum updated
  • Egypt – ED50 datum re-assigned for 32 wells in the Abu El Gharadiq field and 47 from unavailable to ED50 (41 wells) or Egypt 1907 (6 wells) in the Badr El Din field
  • Egypt – Entered 214 new development wells and updated 81
  • Germany – Updated EP contract stage and block for 147 Ridderade and 115 Scholen wells
  • India – Updated 50 wells with tests, locations, alternate name additions, objectives, remarks and 2 wells entered
  • India – 92 wells updated with remarks, TD, objectives, test information, locations, bottom hole formation, workover periods, content status, spud and completion dates
  • India – 149 development and injectors wells entered in the Mangala Field
  • India – 154 wells entered and 361 updated (Remarks, TD, Objectives, Tests, Locations, BHF, workover periods, dates, content status, Geochemistry)
  • Iran – Names reviewed for 717 wells
  • Iran – Updated 10 wells (2 new, 1 removal) with new dates, location and stratigraphy where available. Updated 26 wells in the Darquain field either correcting locations or creating a new well entirely
  • Iran – Entered and quality checked 1,208 geochemical properties over 151 geochemical samples in 30 wells within the Persian Gulf
  • Iran – Updated 518 wells with data ranging from coordinates, naming conventions and dates
  • Iraq – Updated 12 well locations in Taq Taq field
  • Iraq – Updated 367 wells with appropriate operator groups, replacing previously assumed groups
  • Mexico – 243 wells received API names
  • Middle East – Updated 87 stratigraphic and relief wells with content, status and classification
  • New Zealand – Updated 51 exploration wells with comprehensive data from well completion reports
  • Northwest Europe – More than 522 cost attributes updated in Norway, Netherlands, UK and Denmark
  • Northwest Europe – Entered 223 TD's where previously missing in Norway, Netherlands, Denmark and UK
  • Norway – Updated 2,200 coordinates to ensure consistency with official data
  • Oman – Entered 115 new production wells and updated 690 production wells across 11 fields for correct location, BH co-ordinates and deviation type
  • Oman – Entered and updated 39 exploration wells with header data
  • Pakistan – Updated 23 wells with tests, remarks, new periods of activity, drilling history, hydrocarbon information
  • Peru – Entered 200 abbreviations and updated 350 names in 277 wells in Lobitos Offshore field
  • Philippines – Assigned 65 wells with the correct Luzon 1911 datum
  • Poland – Entered test data for 71 wells
  • Russia – Updated 334 wells with coordinates in Caucasus area – Southern Volga Ural
  • Russia – Updated well locations for 71 wells in Dagestan, 28 wells in Krasnador and 18 wells in Saratov from field centers to proper locations
  • Russia – A substantial wells project is ongoing involving the matching and updating against a new dataset and has resulted so far in:
    • Yamalo-Nenets region (Western Siberia) – Locations of 4,587 wells in our DB were adjusted and 764 wells updated with basic data
    • Tatarstan (Volga-Ural) – 1,830 wells in our DB were updated from field centers to proper locations, basic data (name, TD, type, status, etc) for about 1,600 wells, previously absent in our DB were also updated, 27 historical wells entered and 30 updated with data including tests (project continues)
    • Taymyr – Entered 117 historical wells and updated 74 with attributes including tests)
  • Saudi Arabia – Updated 765 wells with header data
  • Thailand – Updated 12 platforms, 138 wells locations and added 2 missing wells in the Bongkot-Arthit project
  • Trinidad & Tobago:
    • Entered 8,935 new onshore wells
    • Updated 1,186 wells from approx. or field center coordinates to reliable ones
    • Populated official abbreviations for around 120 wells
  • Turkey – Updated 1,091 wells with missing attributes including 71 bottom hole formations, 381 spud/comp dates, 53 TD’s and 671 remarks and 105 stratigraphy
  • UAE, Abu Dhabi – Updated 130 wells including classification content, start and end dates
  • UAE, Abu Dhabi – Updated 450 operator and 424 blocks for wells in Zakum field
  • Ukraine – Updated coordinates in 1,178 wells and a further 106 wells entered
  • United Kingdom – 2,190 wells updated with depth reference elevation, ground elevation or water depth
  • United Kingdom – Entered within 60 days of the release dates as part of our Quality Goal:
    • 534 tops in 32 wells for the UK 137th Well Release
    • 840 tops in 41 wells for the UK 138th Well Release
    • 985 tops in 43 wells for the UK 139th Well Release
    • 909 tops in 39 wells for the UK 140th Well Release
    • Also entered 185 casings, 189 TD/TVDs, 149 coordinates, 118 BHF and 92 BHL were entered in 163 wells in association with all releases
  • United States – Entered 101 wells offshore California in Carpinteria and Hueneme fields
  • Venezuela – Updated surface and BH coordinates in 1,405 wells in Zuata field as well as a further 440 wells entered
  • Venezuela – Revised development wells in Cerro Negro area resulting in 684 wells entered and 392 wells updated
  • Yemen – Updated 29 bottom hole locations and deviation types and 6 surface locations in the Habban field
  • Worldwide – Entered 716 ground elevations and 15 water depths
  • Worldwide – Entered estimated TD’s for more than 13,000 development wells in association with our Quality Goal

For information relating to well data improvements in 2015, download our Wells Data Enhancements 2015 Summary

High Impact Wells

In response to the growing demand for information on significant planned wells, the IHS International well data experts are building a High Impact Wells (HIWs) database

The IHS definition of a 'High Impact Well' (HIW) is:

A planned well (fixed to max 3 year forecast) that is targeting over 200 million barrels of oil equivalent (MMBOE) or a play opener or any other significant reason such as first well within a decade, etc.

Note that the target amount of reserves can be lower depending on the region/area.

The database currently contains 71 High Impact Wells including:

  • 63 planned and 8 under drilling
  • 31 targeting oil, 16 oil & gas and 23 gas and 1 unknown
  • 63 already have Vantage analysis including field size distribution, exploration activity and timeline, above ground risk, business environment with strengths and weaknesses, development concept, production profile, cost summary, prospective valuation results and chance of success.
Wells Deletion

Download Well Deletions spreadsheet Our Well Deletions spreadsheet contains a list of all our deleted wells and their associated unique well identifier (UWI) to enable you to more easily manage your own databases. 

Download Wells Deletions spreadsheet

Quality Goals
Download International Energy Quality Goals ReportTo find out more about progress on all our active Quality Goals and a list of previously completed goals please refer to our most recent International Energy Quarterly Review. This also includes information relating to other recently completed Quality Projects.

Download International Energy Quality Goals report

ADM Glossary

View ADM Gloassary ADM is fast and easy to use, the perfect vehicle for data analysis. The ADM allows you to view IHS data and proprietary data in the EDIN application.

View ADM Glossary

Wells Team

Pascal Grosjean, Wells Data Manager

Pascal GrosjeanPascal leads the Wells database team, based out of our Geneva office. Pascal can be contacted via email.