SBM/SPM/ELSBM Single buoy mooring; single point mooring; exposed location single buoy mooring: used for loading oil in to tankers in the open sea, the principle being that the vessel can moor to load oil whatever the direction of wind or current and swing at the mooring to present least resistance to the prevailing conditions. Semi-submersible Mobile offshore drilling platform with floats or pontoons submerged to give stability while operating, kept in position by anchors or dynamic positioning. Silicon and Teflon Fluoropolymers that can withstand high heat, especially useful in replacing older rubber fuel lines. SIS Swedish Standards Organisation. Slug Catcher Arrangement of piping designed to catch a slug of liquid in the gas pipeline to separate it from the gas. SOLAS International Convention for Safety of Life at Sea. Sour Crudes Iranian Light, Iranian Heavy, Saudi Light. Spar A single buoy mooring which includes oil storage capacity so that production can continue even if the weather is too severe for tanker loading. Spot Price A price for oil or oil products for immediate delivery. See also futures. Spud, to To commence drilling operations. Still gas (refinery gas) Any form or mixture of gases produced in refineries by distillation, cracking, reforming, and other processes. The principal constituents are methane, ethane, ethylene, normal butane, butylene, propane, propylene, etc. Still gas is used as a refinery fuel and a petrochemical feedstock. The conversion factor is 6 million BTU's per fuel oil equivalent barrel. Straight vegetable oil (SVO) Any vegetable oil that has not been optimized through the process of transesterification. Using this type of veggie oil in your diesel automobile requires an engine modification that heats the oil before it reaches the fuel injectors -- otherwise, the veggie oil gets all gummed up in cold weather. Sweet Crude Oil Crude oil containing very little sulphur and having a good odour as opposed to Sour Crude Oil which has a high sulphur content and an unpleasant odour. Sweet Crudes Beryl, Brega, Ekofisk, Forties. Sweetening Processing to remove sulfur. Hydrodesulfurization, for instance, can produce sweet catfeed. Caustic washing can sweeten sour natural gasolines to make them suitable for motor gasoline blending. SWOPS Single Well Oil Production System. Slide valve Fuel valves which are fully emptied on each stroke, and thereby counteract afterburning Sludge Mixture of water and oil formed during treatment of heavy fuel oil SMC Safety management certificate - ref. ISM Code SN Satellite navigation. A form of position finding using radio transmissions from satellites with sophisticated on-board automatic equipment SOC Shipper owned container SOF Statement of facts SOPEP Shipboard Oil Pollution Emergency Plan SP Safe port Spidering Is the strengthening of circular tanks for transport, this prevents the tanks from becoming warped. The tanks are strengthened with steel or wood crossbeams giving a “spider” appearance Spot or spotrate Rate for single voyage based on the market situation on the day SQC Special Qualification Certificate (issued by flag state) SQM Safety quality manager SRBL Signing and releasing Bill of lading SSHEX Saturdays, Sundays, holidays excluded SSHINC (or SATSHINC) Saturdays, Sundays, holidays included SSMM Ship Safety Management Manual Stability It is paramount that a vessel is stable in all aspects at all times. When cargo is loaded/discharged, the stability is monitored by a computer, which takes into account the weight and position of cargo within the vessel. Starboard Right side of a ship when facing the front or forward end. STCW Standards of Training, Certificates and Watchkeeping. Standard that crewing have to comply with. For more information please look at www.imo.org (Human Element - Training and Certification). Stem Subject to enough merchandise (availability of cargo). Also, the forward most part of the bow. Stern The foremost or after part of a ship Stevedore Dockworker handling loading/discharging. Term also used on companies delivering such services SUB Subject (to). Depending upon as a condition Subsidiary A subsidiary is an investee where the enterprise owns more than 50 per cent and the parent's power to govern the financial and operating policies or has control over the other enterprise. Suezmax The largest tank vessel which can pass through the Suez Canal fully loaded (120 000 -165 000 dwt.) Sulphur oxides (SOx) Sulphur in the bunkers oil combines with oxygen in the combustion process to form sulphur oxides. These react with moisture in the air to produce sulphurous and sulphuric acid Supercargo Person employed by a ship owner, shipping company, charterer of a ship or shipper of goods to supervise cargo handling operations. Often called a port captain. SWAD Salt water arrival draft SWDD Salt water departure draft Swedac Swedish Board for Accreditation and Conformity Assessment