Upstream Oil & Gas Glossary

Upstream Oil & Gas Glossary

Upstream Oil & Gas Glossary Now including LNG For updates visit esandaengineering.com Upstream oil and gas training specialists Shortlisted for Energy Industry Proud winners of the IHS Spectrum Excellence Award Communications award 2 esandaegineering.com Contents Introduction Glossary Petroleum Chemistry A Brief Oil and Gas History LNG History Some Useful Conversions SPE Petroleum Reserves Categorisation Esanda Course Offering Delivering integrated upstream oil and gas industry training 1 is an independent upstream oil and gas consultancy specialising in industry specific training and field development planning services. Our operations are supported by our UK and Australia offices. Esanda provides upstream professional development training courses, workshops and coaching/mentoring services throughout the world which are delivered by a core team of industry experts, each with over 30 years’ experience. We cover the gamut of upstream industry topics; geology, geophysics, petrophysics, reservoir engineering, drilling, facilities, costing, commercial, financial and accounting. Our training programmes run from specialist breakfast sessions to Masters level courses as well as graduate training programmes of up to 9 months duration. At Esanda we develop long term relationships with our clients and provide follow up coaching/mentoring and online support as well as tailored in-house coaching/ mentoring programmes to suit our client’s needs. Esanda Course Offerings Open course program visit providing ongoing coaching/mentoring. www.esandaengineering.com Follow on support to client’s specific needs Bespoke courses for NOCs and IOCs through our trainer’s practical industry experience Capacity building programmes Esanda courses are individually accredited by the Graduate training programmes UK CPD certification service. Masters level courses in Energy Management Coaching/mentoring programs. Training See our training page at Unique selling points www.esandaengineering.com for details of Core team of experienced trainers upcoming courses or contact us directly on Internally develop training programmes [email protected] to enquire or Enter into long term relationships with clients by discuss your bespoke training needs. 2 esandaegineering.com Glossary AAV Ambient Air Vaporizer Artificial lift Sucker rod- pumps (nodding donkeys), ABS American Bureau of Shipping. US-based classification and standards setting society for shipping gas lift, hydraulic pumps, including LNG ships, FSRU’s and FLNG and submersible electric pumps, used to aid End of production, plug and abandon Abandonment the production of oil as wells, dismantle and remove all material and equipment reservoir pressure declines Treatment of reservoir with hydrochloric or Acidising Solid petroleum hydrofluoric acid to improve performance Asphalt residue, similar to bitumen, ACQ Annual Contract Quantity. The annual gas delivery tar and pitch quantity contracted for during each contract year as Natural specified in an LNG contract Associated gas gas which is dissolved in AFC Approved For Construction crude oil in the reservoir Approved For Design and is released as a by- Bbl-Blue Barrel AFD 42 US gallons product of oil production. Approved For Expenditure AFE In these fields gas Aggregator collects gas from a group of producers. Do production fluctuates with oil production not take title to the gas but find markets and negotiate BAHX Brazed Aluminium Heat Exchanger, also known prices for a pool of upstream producers as Plate Fin Heat Exchanger AGR Acid Gas Removal (Unit) Generic name for Bar Unit of pressure process units designed to remove H2S, CO2 and other sulphur compounds that ‘sour’ the gas Bara bar, absolute pressure AHV Anchor Handling Vessel Barg bar, gauge pressure Alkane Any of various saturated open-chain Barrel A volumetric unit equivalent to 42 US Gallons or hydrocarbons having the general formula CnH2n+2, the 158.99 litres most abundant of which is methane (CH4) Bbl Blue barrel, 42 US Gallons Alkene Any unsaturated aliphatic hydrocarbon with the bbl/d barrel of oil per day (see also Mbbl/d and general formula C2H2n such as ethylene, also known as MMbbl/d) olefins bbl/MMscf barrels per million standard cubic feet Alluvial fan Pattern of sedimentary deposit frequently billion cubic feet (109) laid down by streams or rivers which spread out into bcf plains BCFD Billions of Cubic Feet of Gas per Day Annulus Space between two concentric objects such Beam The width of a ship. Also called ‘breadth’ as between the wellbore and casing BH Bottom Hole Anoxic Lack or absence of oxygen BHA Bottom Hole Assembly ANSI American National Standards Institute BHP Bottom Hole Pressure An arched shape fold in which rock layers are Anticline Bit The cutting/boring element used in drilling wells, upwardly convex consisting of a cutting and a circulating element Air Products and Chemicals Inc. The licensor of APCI Bitumen Form of heavy, solid the C3MR and APX technology petroleum. See Asphalt Drill Bit API American Petroleum Institute Block Subdivided areas for API gravity Density measurement for oil. API gravity = the purpose of licensing to a 141.5/(specific gravity) – 131.5 company for exploration or production rights Aquifer Water-bearing rock strata Blow down Process Arbitrage Trading the same commodity in two or more of releasing pressure. markets in order to benefit from the difference in prices Producing a gas cap after oil Aromatics Relating to an organic compound containing production has concluded at least one benzene ring (C6 ring) or similar ring- shaped component. Naphthalene and TNT are aromatic Blowout Uncontrolled compounds. Notable for their distinctive, usually fragrant release of fluids from the smell well bore 3 Blowout preventer See BOP Bunkering The use of LNG as fuel on ships BOD Basis Of Design Bwpd Barrels of water per day BOE Barrels of Oil Equivalent (5,800 scf of lean gas is C3MR Propane pre-cooled Multicomponent Refrigerant equivalent to 1 bbl of oil in calorific terms) Cycle BOG Boil-off gas. The amount of LNG which evaporates Calliper Tool for checking casing in a well for from the tank during transportation or storage deformation Bow Thruster propeller at the bow of a ship that CALM Catenary Anchor Leg Mooring provides transverse thrust as a manoeuvring aid Calorific value Quantity of heat produced by complete BP Boiling Point combustion of a unit weight of a fuel. This can be BOP Blowout preventer, arrangement of valves and measured net or gross (gross means that the water rams installed at wellhead to prevent sudden escape of produced during combustion has been condensed fluids from reservoir releasing its latent heat, net means the water remains as a vapour) Cantilevered jackup Jackup drilling unit where the drill rig is mounted on two cantilevers – see also Jackup CAPEX Capital expenditure Cap rock Impermeable layer of rock providing a seal to contain the reservoir fluids Cargo Handling the act of loading and discharging a cargo ship Casing Steel pipe placed in the well and cemented in place Catenary The natural curve assumed by a chain or cable suspended between two points (e.g. an anchor chain) BOP CBM Coal Bed Methane. Methane extracted from coal Bopd Barrels of oil per day seams. In the US alone, 100 TCF of CBM appears to be economically recoverable Borehole Refers to the face of the rock outside or below the casing cc Cubic centimetre (cm3) Bottom-hole Deepest part of a well CCGT Combined Cycle Gas Turbine. High efficiency power generation (typ 50%+) using gas turbines with Bottom-Hole Assembly (BHA) Includes drill bit, drill heat recovery steam generators (HRSG) and a steam collars, stabilizers and other drilling components turbine in a power generation plant Bottom-Hole Pressure (BHP) Formation pressure at CCR Central Control Room reservoir depth CCS Carbon Capture and Storage Bottom-hole pump Pump installed in the wellbore, to increase productivity, (Also downhole pump) Cellar deck Deck beneath the working floor of a drilling rig or below the main deck of an offshore platform Bpd Barrels per day Centipoise (cP) A unit of measurement for viscosity Break Bulk to commence discharge of a cargo Charter Party contractual arrangement between a ship Bridge plug Down hole packer assembly used in a well owner and a cargo owner, usually arranged by a broker, to seal off or isolate a particular formation for testing, whereby a ship is chartered (hired) either for one voyage acidizing, cementing or for a period of time BS&W Basic Sediment and Water Check valve A non-return valve, allowing flow in only BTEX Aromatic Hydrocarbons: Benzene, Toluene, one direction Ethylbenzene and Xylene Choke Device incorporating an orifice that is used to Btu British thermal unit. A measure of heat content. control fluid flowrate or downstream system pressure 1 Btu=252 calories, 1,055 Joules CHP Combined Heat and Power. The generation of Bubble point The pressure and temperature at which electricity and steam (or process heat) simultaneously the first bubbles of gas come out of solution 4 esandaegineering.com Christmas Tree Conventional A reservoir in which buoyant forces keep hydrocarbons in place below a sealing caprock. Reservoir and fluid characteristics of conventional reservoirs typically permit oil or natural gas to flow freely into wellbores Core A cylindrical sample taken from a formation for geological analysis Coring The process of cutting a vertical, cylindrical sample of the formations Cp Centipoise, a unit of measurement of dynamic viscosity (See Centipoise) CP Conditions Precedent. Common conditions Christmas tree (Xmas Tree) The set of valves, spools, precedent included in LNG sale and purchase pressure gauges and chokes fitted to the wellhead of a agreements are key governmental approvals required by completed well to control production either party Central Processing Facility CIF Cost, Insurance, Freight, describes a transaction CPF where the seller arranges for shipping of LNG CPOC Conoco Phillips Optimised Cascade Process Classification Society (Class) companies that arrange CPU Central Processing Unit inspections and advise on the hull and machinery of a Corrosion Resistant Alloy ship.

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