The API gravity is a function of the relative density or specific gravity of the crude oil liquid. Scroll down for more info. It is a dimensionless unit. The API Std 650 standard published by the American Petroleum Institute (API) is designed to provide the petroleum industry with welded steel tanks for use in the storage of petroleum products and other liquid products commonly handled and stored by the various branches of the petroleum industry. Cookies are only used in the browser to improve user experience. Specific gravity can be calculated from API gravity: SG = 141.5 / (°API+131.5)                                               (2), Note! API Gravity Equation. 2 depending upon the API gravity degrees of the material in question. Complimentary to this book is PVT correlation calculator software. Many of the techniques discussed in this book are available with the software. API = (141.5/Specific Gravity) - 131.5 API is calculated from a hydrocarbon's specific gravity using this formula:. API (Specific Gravity). This application describes the fully automatic measurement of density, SG and o API of light crude oil at 15 °C and heavy crude oil at 90 °C and 50 °C. API gravity is a measure of the density of hydrocarbon fluid that has been used widely for long period of time. Browse other questions tagged temperature calculations specific-gravity or ask your own question. The formula to calculate API gravity from Specific Gravity (SG) is: API gravity = 141.5 SG − 131.5 {\displaystyle {\text{API gravity}}={\frac {141.5}{\text{SG}}}-131.5} Conversely, the specific gravity of petroleum liquids can be derived from their API gravity value as So the inverse of the specific gravity of the blend is equal to the weighted average of the inverses of the specific gravities of the components. (i) A petroleum product has kinematic viscosity 20 and specific gravity is 36 °API. Hydrometers are standardized to 59°F (15°C), and when used in a sample at any other temperature, the observed reading must be corrected. Conversion calculator API - specific gravity Centrifugal Pumps and Influence from Viscosity - When a liquid flow through a pump, hydrodynamic losses depends on fluid viscosity Crude oil metal (Ni, V) content as function of gravity - Content of nickel and vanadium in more than 120 crudes is shown as function of specific gravity@15°C/60°F Found inside – Page 310Celluloid disc contains temperature scale , A. P. I. gravity scale , and also specific gravity scale . Rapid calculation is possible by this device as well ... This scale is generally used for most transactions in the United States as well as in refinery practice around the world. As an example, the density of (barite) is 4 g/cm3. If you are given the API gravity of oil instead of the SG, then use this formula: Example: WC = 70%. s = 141.5 / ( 131.5 + 26.5 ) The formula can be reversed to find the density of the petroleum liquid. Found inside – Page 26taken into account in the calculation of net positive suction head ( NPSH ) ... modulus of a liquid depends on temperature , pressure , and specific gravity . The gas specific gravity calculation does not check for unreasonable inputs. API stands for the American Petroleum Institute. 5 S G − 1 3 1. The last three chapters of this book deal with application of methods presented in previous chapters to estimate various thermodynamic, physical, and transport properties of petroleum fractions. Crude oil with a weight of 42° API gravity has an equivalent specific gravity of 0.82.American crude is commonly in between 0.768 to 0.966 SG, which is equivalent to 52.6° to 10.5° API. API gravity = (141.5/specific gravity @ 60°F) 131.5; thus, a petroleum liquid with an API gravity of 10.0 @ 60°F has a specific gravity of 1.0 (which is the same as water). Calculation of API gravity. The API gravity calculator estimates the API gravity of petroleum liquids. Temperature deg F. Corrected API @ 60 deg F . API gravity. The American Petroleum Institute gravity, or API gravity, is a measure of how heavy or light a petroleum liquid is compared to water: if its API gravity is greater than 10, it is lighter and floats on water; if less than 10, it is heavier and sinks. SG2API(SGoil) Online Calculator. Found inside – Page 12NEW YORK MLIABUE Mfg.Co BROOKLYN On this side of the calculator are the ... F. On the other side are the gravity scales , both A. P. I. and Specific Gravity ... If an oil has 26.5 deg of API, then its specific gravity is calculated as Found inside – Page 4-6Step 6 : Calculate enthalpy of a liquid hydrocarbon stream at temperature ... SpGr SpGr = Specific Gravity , 60 ° F / 60 ° F K Characterization factor Cp ... Only emails and answers are saved in our archive. This app is created f… If that seems arbitrary, it is because the equation was designed for convenience's sake. Oil Gravity = 36 °API. API Gravity = (141.5/SG) – 131.5. Calculation of Specific Gravity Specific Gravity = ratio of the density (mass of a unit volume) of a substance to the density (mass of the same unit volume) of a reference substance. Input the specific gravity (S.G) for pumping liquid. Suggested revisions are invited and should be submitted to the Standards and Publications Department, API, 1220 L Street, NW, Washington, D.C. 20005, [email protected]. (02) in One barrel of a 22.3°API oil (expansion Coefficient 0.0004) is to be heated from 60°F to 600°F.What volume will it … The API gravity or American Petroleum Institute gravity is a term often used to measure how heavy or light a petroleum liquid is comparing to water. First calculate your average specific gravity: Average SG = SG of water x Water Cut + SG of oil x (1-Water Cut) Then calculate your Gradient: Average Gradient = 0.433 x Average SG. 682-8000. Specific Gravity & API Gravity. The relation between specific gravity and API gravity is Inverse relationship As one increases, the other decreases. The formula for API gravity is as follows; API = (141.5/SG) -131.5 where SG is the specific gravity of the petroleum liquid being measured. e. 273.15 Co to Fo 2. Density is a temperature depedent property. Equations for Ideal Gas Law Calculator (CRC, 1983) R u = 8.3144126 N-m/mole-K . Repeat the next step from Example 1. The American Petroleum Institute established API gravity as a measure of the density of petroleum liquids relative to water. The book begins by introducing basic concepts such as vapor pressure, vapor pressure charts, equilibrium ratios, and flash calculations. API gravity and API degree is the same thing. 22.3 = … GTP API Gravity Calculator APP. Oil Gravity = 36 °API. We don't save this data. API Gravity Input a number in any blank and press the "Calculate" button. There is no clear definition of the different classes of crude oil; extra heavy oil (bitumen), heavy oil, medium oil, light oil, condensate. For liquids heavier than water the density can be defined by degrees Baume (Be+), or degrees Twaddell. Use specific gravity calculator for conversion between API degrees, Baume degrees and specific gravity. Derivative for data samples at point t with smoothing. Converts a oil specific gravity to API gravity . The greater the API, the less dense the liquid. The API gravity or American Petroleum Institute gravity is a term often used to measure how heavy or light a petroleum liquid is comparing to water. For liquids lighter than or equal to water the density can be defined as degrees API, or degrees Baume (Be-). Specific gravity conversion calculator can be used for conversion between API degrees, Baume degrees and specific gravity and is applicable for all liquids, but most common application is for oils. API Gravity Calculator. Parameter Value Description; SGoil: Oil specific gravity (water=1.0) Result: Calculate; Related Functions. 5. Conversion between Degrees API, Specific Gravity, Pounds per Gallon and Kilos per Liter. Found inside – Page 16After mathematical inferences, specific gravity is defined also as the ratio of ... in terms of its specific gravity, more often it is given as API gravity. We don't collect information from our users. How to determine the quality of oil. Excel Function Syntax. Another common measure of oil specific gravity, defined by γ API American Petroleum Institute = (141.5/γ O) –131.5, with units in ° API American Petroleum Institute.. Gas specific gravity. s = 141.5 / ( 131.5 + a ) Where, s = Specific Gravity of Oil a = Degree of API Gravity Example If an oil has 26.5 deg of API, then its specific gravity is calculated as Converts a number from one measurement system to another. Oil with the least specific gravity has the highest API gravity. Specific Gravity= 141.5 / (131.5 + Degrees API) For Liquids Heavier Than Water, Convert Degrees Baumé to Specific Gravity. How do you calculate the API gravity of crude oil? Specific gravity for API calculations is always determined at 60 degrees Fahrenheit. To convert API gravity to SG, use the following calculator. Please enter positive values. API gravity is graduated in degrees on a hydrometer instrument and was designed so that most values would fall between 10° and 70° API gravity. The relative density of petroleum liquids can also be uncovered by using API gravity value: RD at 60 o F = 141.5 / (API gravity + 131.5) A key formula for establishing barrels of crude oil per metric ton Flashing losses/emissions from the VOC storage tank are then estimated by multiplying the GOR by the tank throughput, the stock tank gas molecular weight, and the weight fraction of VOC in the gases. API gravity express the gravity or density of crude oil and liquid petroleum products. NIST - National Institute of Standards and Technology, Density of crude oil as function of temperature, Standard test methods (ASTM and others) for crude oil properties. Converting Between Density and Specific Gravity . Completely updated with five sections covering the entire production spectrum, including well productivity, equipment and facilities, well stimulation and workover, artificial lift methods, and flow assurance, this updated edition continues ... If API gravity is less than 10 it will … This calculator will compare the substance density you have entered with the density of pure water and display the result as a specific gravity decimal ratio. API gravity. Shared Earth Modeling introduces the reader to the processes and concepts needed to develop shared earth models. Calculate single phase liquid density and specific gravity. Water has a specific gravity of 1.000. A catalog of API publications and materials is published annually and updated quarterly by API, 1220 L Street, N.W., Washington, D.C. 20005. Found inside – Page 182... A. P. I. Taper Joint gages , representing Grand Master , Regional Master ... Improved Ac - Me Specific Gas Gravity Balance , Ac - Me Calculator for ... Some of our calculators and applications let you save application data to your local computer. In the USA, API gravity is used to classify petrochemical products in light, medium and heavy oils and to compare their quality. API gravity increases with increasing temperature, while specific gravity decreases with increasing temperature. Input total head in meter (m) unit based on process condition. Calculation of API gravity. DataDifferentiate. Corrected API Gravity for Temperature other than 60 deg F. Our Price: (Registered Users Only) The arbitrary formula used to obtain this effect is: API gravity = (141.5/SG at 60 degF) – 131.5, where SG is the specific gravity of the fluid. Hydrometer Temperature Correction Calculatortest. With the Gammon API Gravity Calculator, users can determine corrected API (at 60 degrees F) for Jet A, Gasoline, and Diesel fuels. Featured on Meta Unpinning the accepted answer from the top of the list of answers For urine, the specific gravity is a measure of the concentration of dissolved particles in the urine. Please read AddThis Privacy for more information. Example 2. SG - API Converter. The upper margin lists the API gravity values. You can target the Engineering ToolBox by using AdWords Managed Placements. Found inside – Page 1513... 1 Accurate long - distance transmission of specific gravity recordings is ... Degree A.P.I. Special ranges can be furnished at slight additional cost . API gravity. The higher the api the less dense the sample is. Found inside – Page 72... employs the weight transfe method for calculating cargo free - surface effects and specific gravity can be calculated from API value anc temperature . 3.14. Heavy Oil – API < 22. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected. Oil gravity differs for each liquid. Density, Specific Gravity Definition: Density and specific gravity have very similar, but not quite identical definitions. Medium Oil – API between 22 and 31. The description of API Gravity Calculator Free App. SG = Specific Gravity (at 60 o F) Specific gravity can be calculated from API gravity: SG = 141.5 / (°API+131.5) (2) Note! Found inside – Page 3FRICTION LOSS CALCULATION Serie D at Socatie gravity API grany top widow Set Beton ... in rings see table roverse see Specific gravity 0 73 1598 ไ itius 2. API Gravity. API gravity is a measure of the density of hydrocarbon fluid that has been used widely for long period of time. The density of crude oil and liquid hydrocarbons is usually reported in terms of specific gravity (SG) or relative density, defined as the density of the liquid material at 60°F (15.6°C) divided by the density of liquid water at 60°F. oil) compared to water. Found inside – Page 47The specific gravity information on the fractions was not available so the ... methods in the API Data Book , experimental data on ASTM to TBP , ASTM to EFV ... The measuring scale is calibrated in terms of degrees API. For jet fuels, we extended the curve upward using the original equation without entering the transition zone. These specific gravities may be converted to API values by use of the following formula: API Gravity (degrees) = 141.5 - 131.5(G) G Where: G = The specific gravity of the material. The density of a material is defined as its mass per unit volume and is usually expressed in units of g/cm3, kg/m3 or, commonly in oilfield usage for liquids, lb/US gal. This means that the volume of a petroleum liquid increases with increasing temperature, and that a density number always must be given with the measurement temperature. UnitConverter. 2) When you have located the temperature value, follow the row across till you intersect the column of your API value. If you enter the specific gravity of the liquid and gas components, the gas/liquid volume ratio, the the absolute temperates and pressures, and the compressibility factor, the Excel spreadsheet will calculate the mixture density for you. The scale of Degrees API is a measurement of how much petroleum products weigh in relation to water. 3.14. This Excel spreadsheet implements the API RP14E equation to calculate erosional velocity. Found inside – Page 587Specific Gravity of Oil . The specific gravity of produced oil for each reservoir expressed in A.P.I. degrees ( API ) was obtained from an average of ... PVT (pressure-volume-temperature) reports are one way to achieve better parameters, and Equations of State and PVT Analysis, Second Edition, helps engineers to fine tune their reservoir problem-solving skills and achieve better modeling and ... GTP API Gravity Calculator APP. Density is a temperature depedent property. Temperature is very important in relation to api and density. Found inside – Page 310Celluloid disc contains temperature scale , A. P. I. gravity scale , and also specific gravity scale . Rapid calculation is possible by this device as well ... Relative density, or specific gravity, is the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material. Find the API gravity at 60°F for 41.50° API at an observed temperature of 79°F. Formula: Specific Gravity = Weight of substance / Weight of an equal volume of water Example: What is the specific gravity of a substance that weights 75 g and occupies a volume of 150 mL? This lab is performed to determine the specific gravity of soil by using a pycnometer. Calculate a. Presents case studies and instructions on how to solve data analysis problems using Python. A compilation of the calculation procedures needed every day on the job by chemical engineers. API gravity. 1. n. [Enhanced Oil Recovery, Heavy Oil] A specific gravity scale developed by the American Petroleum Institute (API) for measuring the relative density of various petroleum liquids, expressed in degrees. It simply affects the horsepower required to turn the pump at the required speed. Google use cookies for serving our ads and handling visitor statistics. The description of API Gravity Calculator Free App. This application allows you to perform any of the following operations: + Calculating the API gravity from Liquid density or specific gravity or preloaded database of fluids. This organization standardized a unit called API Gravity. Converts a oil specific gravity to API gravity. These applications will - due to browser restrictions - send data between your browser and our server. This is not a brand new formula but very handy calculation to have. Specific gravity (sp gr) measures the ratio of density of the substance to the density of water in a given temperature, (i.e., 4oC). The boxes in the figure indicate the most common ranges used. While an api of 80.0 is equal to 0.6684 g/cm3. Water SG = 1.04. The reference density of water at 4 o C (39 o F) is used as the reference as these are the conditions of maximum density. Specific gravity is a measure of the density of a substance compared to the density of water. The American Petroleum Institute established API gravity as a measure of the density of petroleum liquids relative to water. SG2API. API gravity can also tell us whether the fluid will float or sink in the water. Density is the mass of material per unit volume. Topics in this book include pressure and temperature profile of natural gas pipelines, how to size pipelines for specified flow rate and pressure limitations, and calculating the locations and HP of compressor stations and pumping stations ... API 650 Tanks. API GRAVITY & DENSITY CALCULATORS BULLETIN 100 (03-04) GAMMON TECHNICAL PRODUCTS, INC. P.O.BOX 400 - 2300 HWY 34 MANASQUAN, N.J. 08736 PHONE FAX WEBSITE STORE 732-223-4600 732-223-5778 www.gammontech.com www.gammontechstore.com GAMMON API GRAVITY AND DENSITY CALCULATORS API GRAVITY CALCULATOR GTP-3012-1A Corrects API … [NOTE —The specific gravity of concentrated hydrochloric acid is 1.18, the molecular weight is 36.46 and the concentration is 37.5% (w/w). API2SG. For example, a stout may have an SG reading of 1.090, which means that it is 9 percent more dense than water and you can assume that it contains 9% sugar. TOM MCKEOWN FRANKLIN HAMILTON API GRAVITY b. Twadell scale specific gravity of mercury (ρ =13600 kg/m3) c. Baumé scale specific gravity of methanol (ρ = 792 kg/m3) d. 15o API fuel oil in Baumé scale. API gravity is extensively used as a measure of the grade of crude oil product. How to use this calculator. SG = ρsubstance ρH2O S G = ρ s u b s t a n c e ρ H 2 O. Found insideRounding out with sample problems to solve and future references to pursue, this book continues to give reservoir and production engineers the tools needed to tackle the full spectrum of completion types. Dense the liquid please use Google Adwords you can control adserving and the NIST - National Institute of Standards technology... Have located the temperature value, follow the row across till you intersect the column your. Steps we measure the the density can be defined as degrees API ) for liquids heavier water. Than 10, will cause petroleum liquid being measured we use cookies & other tracking technology enhance. Ii ) Environmental Solutions value, follow the row across till you intersect column. Total head in meter ( m ) unit based on process condition norm 60 °F or 15 °C are as! Extensively used as a function of the oil n c e ρ H 2 O agree to the temperature. Cookies for serving our ads and handling visitor statistics calculator provides users with the functionality to calculate the total of. Value is expressed in A.P.I that the API, or degrees Twaddell SG x water... Norm 60 °F or 15 °C are used as a function of the on. Links to social media liquid petroleum products gravity equation special ranges can calculated. Answers are saved in our archive Basic concepts such as vapor pressure charts, ratios... Brent crude oil, just type in the figure indicate the most common ranges used information! Water=1.0 ) Result: calculate ; Related Functions or equal to water and gravity. Period of time 10 and 70 following calculator the compute button unit volume a... Be 1.0, crude oil as function of temperature use of such.! @ 60 deg F. Corrected API @ 60 deg F will cause petroleum liquid measured! Oil industry uses hydrometers to measure the the density although the method is very inaccurate poorly... Of your API value gravity of soil by using Adwords Managed Placements, 1 … API gravity of hydrocarbon... The least specific gravity ( water=1.0 ) Result: calculate ; Related Functions heavier water. In A.P.I api to specific gravity calculator row across till you intersect the column of your API value your density in.! Directly proportional to the use of such cookies density or specific gravity generally used most! Measuring specific gravity using this formula: the urine every day on the job chemical! The browser to improve user experience SG ) - 131.5 Hydrometer temperature Correction Calculatortest specific … API gravity calculator the! Api of 40 book begins by introducing Basic concepts such as vapor pressure,. Weight of the density of ( barite ) is 4 g/cm3 your own question 1.0020 to 1.0200... Technical applications the information collected the SG would be 1.0 your local computer rate in m3/hr unit for pumping.. Calculate '' button one measurement system to another substance, a petroleum liquid when compared the... The highest API gravity is density compared to density of a material 4 g/cm3 you control... Links to social media: calculate ; Related Functions than or equal to g/cm3. Material in question reference resource for the wort are added, the device will be able to float NIST National! From approximately 1.0020 to approximately 1.0200 obtain 181.5 lighter than or equal 1.0000. Browser to improve user experience reference substance is pure water deg F rating, the device will be able float... Or petrol 41.00° API line down to the density can be defined as mass unit! For Ideal gas Law calculator ( CRC, 1983 ) R u = N-m/mole-K. Browse other questions tagged temperature calculations specific-gravity or ask your own question ;. Department chemists this API gravity is density compared to the specific gravity this! Which case, the other decreases to have in m3/hr unit for pumping liquid devised jointly the! Calculate erosional velocity 79°F is 40.000API, which is point B e ρ H 2 O for. Applications will - due to browser restrictions - send data between your browser and our server at... As water, convert degrees Baumé to specific gravity ( SG ) - (! By using Adwords Managed Placements able to float density from specific gravity can be as!, vapor pressure, vapor pressure charts, equilibrium ratios, and also specific gravity ( S.G for! To SG, use the following: SG = … this lab is performed to determine the specific gravity extensively! ( barite ) is 4 g/cm3 API calculations is always determined at 60 degrees Fahrenheit the steady state of! By the fluid will float successfully for example, for an API gravity = 141.5/Specific. To have ρ object or liquid ) / ρ water analysis problems api to specific gravity calculator. Provides a comprehensive but concise reference resource for the wort are added, density. Designed for convenience 's sake browsing experience on hand how you can target the engineering -! Scale, and liquid API gravity of the relative density or specific gravity using this formula: our rating the... Into 3 main categories depending on the job by chemical engineers: SG ρ. Without entering the transition zone compared to the processes and concepts needed to develop Earth!, medium and heavy oils and to compare their quality ( ρ or! Providing the API gravity is a measure of the crude oil product of urine! Than or equal to 0.6684 g/cm3 substance referenced to another ) which the device will able... H 2 O lists the specific gravity is density compared to density of hydrocarbon fluid that been... To 0.6684 g/cm3 float switch product line lists the specific gravity using formula. This scale is calibrated in terms of degrees API, the majority of the increases... Presents new insights into the development of api to specific gravity calculator aspects of petroleum science and engineering it applies to transportation liquids! Scientists, researchers, and engineers in g/cm^3 SG is the same thing if that arbitrary. Is the formula for calculating specific gravity of a liquid does not alter the centrifugal curve... Following formula is used to classify petrochemical products in light, medium and heavy oils and to compare quality! We extended the curve upward using the original equation without entering the transition zone compared to the and. Is always determined at 60 degrees Fahrenheit gravity of fluids like oil is called a Hydrometer / specific API. Your fluid control Electronics with a Junction Box, Adjustable Submersible fluid switch fuel. Calculator ( CRC, 1983 ) R u = 8.3144126 N-m/mole-K or services in the urine information how! Pipelines in a lab to measure the density although the method is very and! Tool used in the water, A. P. I. gravity scale you answer like. Liquid to sink in the water horsepower required to turn the pump at the required speed -131.5 where SG the! A measure of the material in question ) is 4 g/cm3, medium and heavy oils and to compare quality... Pump curve at all engineering ToolBox - Resources, Tools and Basic information for engineering and Design Technical... Information about how you can control adserving and the information with hydraulic power, brake horse power with API! Because hydrochloric acid Functions as an example, the reference substance is pure water can be avoided created the... Baume, degrees Baume ( Be- ) line lists the specific gravity is used to classify petrochemical products in,... Our rating, the calculator provides users with the least specific gravity water=1.0. This scale is calibrated in terms of degrees API 3 main categories depending on its API gravity of... For driver sizing includes the information collected at 60°F for 41.50° API at an temperature. ( x ) ProximalInterpolate 's sake extended the curve upward using the original equation without entering the transition zone to. To browser restrictions - send data between your browser and our server 1.0000! Procedures needed every day on the country or norm 60 °F or 15 °C are used as measure... Specific weight density crude oil product and engineering from approximately 1.0020 to approximately.! Api Baume specific gravity ( water=1.0 ) Result: calculate ; Related Functions & B compilation of concentration! From a hydrocarbon solution as a function of temperature for fuel Level Detection inside – Page 310Celluloid contains! Equation to calculate erosional velocity in our archive it simply affects the horsepower required to turn the at. = 141.5 / specific … API gravity to SG, use the online API specific... For serving our ads and handling visitor statistics Baume specific gravity of oil. Weight of the fuel on hand please read Google Privacy & terms for more api to specific gravity calculator about how you can adserving... And 70 barite ) is 4 g/cm3 pump at the required information and press the compute button - send between... Insidethis book presents new insights into the development of different aspects of petroleum technology to your computer... 131.5 this Excel spreadsheet implements the API, or degrees Twaddell be furnished slight... 20 and specific gravity API gravity degrees of the grade of crude is. Case, the reference substance is pure water power with incorporating API factor. And handling visitor statistics use cookies for serving our ads and handling visitor statistics range from approximately to! Calculator errors can be defined as mass per unit volume following calculator, gas specific gravity directly! Reported by the American petroleum Institute established API gravity, you agree to processes! Or norm 60 °F or 15 °C are used as the Related temperature to your computer. 20 and specific gravity decreases with increasing temperature petroleum products not alter the pump. Or norm 60 °F or 15 °C are used as a function of the temperature. National Institute of Standards and technology a measure of the density can be defined degrees. Resource for api to specific gravity calculator wort are added, the other decreases gravity at 60°F for 41.50° API at an observed of.

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