Glossary

  • All
  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K
  • L
  • M
  • N
  • O
  • P
  • Q
  • R
  • S
  • T
  • U
  • V
  • W
  • X
  • Y
  • Z
  • Lay Barge

    a specially designed barge used to lay an underwater pipeline; also called a pipe laying barge.

    Leak-off test

    the process of applying pressure to the formation below the casing seat to test the quality of cementing and to determine the fracture pressure in the permeable zone immediately below the casing seat.

    Lean gas or dry gas

    gas with relatively few hydrocarbons other than methane. The calorific value is typically around 1,000Btu per scf, unless there is a significant proportion of non-hydrocarbon gases present.

    Licence

    an authority to explore for or produce oil or gas in a particular area issued to a company by the governing state; see exploration/production licence.

    Licence round

    a stage in the allocation of licences (both onshore and offshore) in which a country places a number of specified areas in its sector on offer to oil companies at one

    Light crude

    crude oil with a low specific gravity and high API gravity due to the presence of a high proportion of light hydrocarbon fractions.

    Light fractions

    the low molecular weight, low boiling point fractions that emerge from the upper part of a fractionating column during the oil refining process.

    Liner

    small-diameter casing that extends into the production layer from just above the casing seat and is perforated when production or well testing starts.

    Liquefied natural gas (LNG)

    natural gas that has been liquefied by refrigeration or pressure in order to facilitate storage or transport; generally consists mainly of methane. See also gas liquefaction.

    Liquefied petroleum gas (LPG)

    a mixture of light hydrocarbons derived from oil-bearing strata which is gaseous at normal temperatures but which has been liquefied by refrigeration or pressure in order to facilitate storage or transport; generally consists mainly of propane and butane.

    LNG carrier

    a tanker specially designed to carry LNG, fitted with insulated pressure tanks made of stainless steel or aluminium. The load is refrigerated to 162C.

    Lost circulation

    the loss of substantial volumes of drilling mud into a formation; also called loss of returns.

    Lost time

    time in which no work is possible on an operation due to bad weather, industrial dispute, etc.




    A global information service for upstream oil and gas opportunities - divestitures, farmins and farmouts and licensing rounds.


    Subscriber Only Deals

    Current Deals

    Current Upstream Deals: 210

    Completed Deals

    Completed Upstream Deals: 6623

    Company Profiles

    Current Company Profiles: 2929

    Corporate Activity

    Current Corporate Activity articles: 4184

    Companies Looking

    Current number of articles: 466

    Company Sales

    Current Company Sales articles:1671

    Geostudies

    Current Geostudies articles: 999

    How to subscribe

    energy-pedia Jobs

    RSS Feed Widget
    See all jobs...


    energy-pedia Databank

    The energy-pedia databank contains links to information on the world financial and energy markets, including share prices, oil and gas prices and the global stock exchanges. Read more...



    energy-pedia Glossary

    A list of commonly used terms in the oil and gas industry. Read more...

    Subscribe

    Subscribe to the FREE
    energy-pedia Daily Newsletter
    Subscribe

    Merlin
    Syntillica
    Telos NRG
    energy365
    Borchwix
    Rose & Assocs
    Union Jack Oil 149
    Bayphase
    OPC
    About energy-pedia

    energy-pedia news is a FREE news service written and edited by E and P professionals for E and P professionals.

    We don't just report the news, we give you the technical background as well, with additional information derived from our unique energy-pedia opportunities service.
    Contact us

    energy365 Ltd

    238 High Street
    London Colney
    St Albans
    UNITED KINGDOM

    Tel: +44(0)1727 822675

    Email: info@energy-pedia.com