Gas Tanker Calculation Procedures
Nov06

Gas Tanker Calculation Procedures

Independent cargo surveyors are often employed by cargo buyers or sellers and the survey companies provide personnel to check cargo operations and cargo quantities both on board ship and within terminals. Such activities can include cargo measuring and cargo sampling. During cargo operations, it is important to maintain a log of events. Ship’s officers and shore personnel should ensure that their time records are in agreement...

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Petroleum Calculation Series: Gas Tanker Principal Products
Nov01

Petroleum Calculation Series: Gas Tanker Principal Products

The hydrocarbon gases methane, ethane, propane and butane may be regarded principally as fuels, the LPGs are also important as feedstock in the production of the chemical gases. Liquefied Natural Gas (LNG) Natural gas is transported either by pipeline as a gas or by sea in its liquefied form as LNG. Natural gas comes from underground deposits. Its composition varies according to where it is found but methane is by far the predominant...

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Petroleum Calculation Series: Gas Tanker Terms
Sep08

Petroleum Calculation Series: Gas Tanker Terms

Absolute Pressure The absolute pressure is the total of the gauge pressure plus the pressure of the surrounding atmosphere. Absolute Temperature The fundamental temperature scale with its zero at absolute zero and expressed in degrees Kelvin. One degree Kelvin is equal to one degree Celsius or one degree Centigrade. For the purpose of practical calculations in order to convert Celsius to Kelvin add 273. It is normal for the degree...

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Software: Bunker Survey and Petroleum Calculation
Nov23

Software: Bunker Survey and Petroleum Calculation

I have added some software relate to oil calculation. The software are: 1. BunkerCal A Bunker Tank Sounding calculation program. Bunker survey calculation for tank sounding report based on ASTM Table 54B . Follow this link to know more http://www.sevensurveyor.com/software/surveysoft-marine-surveyor-software/ 2. OilCal A Petroleum calculation program. For shipboard survey with calculation and ullage report based on ASTM Table 6A, 6B,...

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Petroleum Calculation Series: Shipboard
Nov18

Petroleum Calculation Series: Shipboard

The shipboard loading survey is conduted to get the quantity loaded onboard the vessel with measurement of cargo tank. The sounding or ullaging are performed to obtain the level of oil and free water on each tank. The obtained oil level data were calculated by using ship tank table to get TOV and total free water. Data required for Crude Oil Survey: – Tank Number – Tank Reference Height – Dip innage (sounding) or...

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