Software: Bunker Survey and Petroleum Calculation

24 thoughts on “Software: Bunker Survey and Petroleum Calculation”

1. Hi Hidelito..

   As I known :
   – US System will result the volume in Barrels, then weight in Long Ton and Metric Ton.
   – Metric System will result the volume in Kiloliters, then weight in Metric Ton and Long Ton.
   So, both volume and weight are required calculation in petroleum custody transfer, both of them are subject to change by density and temperature as well, and most of petroleum trading still use volume and weight to determine the quantity.

2. Why calculation in the Asian region for petroleum products adopted mostly in Metric System and while in US and ME is US barrel, we are aware, petroleum products deals with density and temperature in correlation with the volume, what we are dealing is petroleum in volume and not the weight. What is significant of volume discrepancy? ( Volume. vs. Weight ) In the refinery, we have called the refinery gain, it does not followed also the standard equation to One US barrels equal to 42 gallons due to processing and chemical changes. I hope you can clarify on this issue.

3. in the LPG Carrier between the MOSS and GTT 96 Tank, which more advantage membrane against sloshing?

4. Dear Sinh,

   Thanks for your comment.

   I guest that you question is about density commingle or mix density.
   If yes, here the explanation:
   – TANK A
   Quantity(Q): 100.00 m3
   Density (D): 0.9880
   – TANK B
   Quantity(Q): 130.00 m3
   Density (D): 0.9870
   – TANK C
   Quantity(Q): 150.00 m3
   Density (D): 0.9850

   If all TANK (A+B+C) pumps to TANK D:
   = {(AQxAD)+(BQxBD)+(CQxCD)} / (AQ+BQ+CQ)
   = {(100.00 x 0.9880)+(130.00 x 0.9870)+(150.00 x 0.9850)} / (110.00 + 130.00 + 150.00)
   = (99.80 + 128.31 + 147.75) / 390.00
   = 375.89 / 390.00
   = 0.9637 >>> Density at TANK D.

   Regards,
   Surveyors

5. hello, all surveyor
   i am new surveyor, please hepl me. Now i want to know

   how to calculation pro rata density petrolium ?
   and
   what’s ASTM for pro rata method.
   email : sinh.amico@gmail.com
   Tks!

6. Dear Hidelito,

   Thank you for visiting. To convert API to density you could use the following calculation:

   141.5 / (131.5 + API gravity)

   Regards,
   Surveyors

7. Thanks and just point of clarification, how can we convert API gravity to density ? I appreciate very much your reply.

8. Dear Chief,

   Thanks for coming here. I have update the bunker software, it will available soon.

   Regards,
   Surveyors

9. Dear Nayngyi,

   Thanks. Keep learning as I still doing the same. The full version of software will be available soon.

   Regards,
   Surveyors

10. Hi im chief engineer on board ship how can i down load FO AND DO bunker calculation that i can use in all ship that i can be manage thanks mr survevor.

11. hello.sir thank u very much .i want to that software . i learning draft survey now i am working myanmar inspection and testing survices .

    nayngyi

12. Dear Harshal,

    Thanks for downloading.

    You could use the trial version to calculate limited tanks and see the result of calculation, but you could not save the data. It will automatically replace your data with pre-load data that coming with software.

    Regards,
    Surveyors

13. Hello Sir,

    Can you advise how to use this software
    The excel file in read-only

14. Hi Sam,

    Thanks for your comments.

    Regards,
    Surveyors

15. Dear Hui,

    the trial version is purposed to test the software only. If you feel it was good and useful, you could contact my email to get the full one with more columns.

    regards,
    Surveyors

16. Hi sir,
    I really love the good work that u are doing for all surveyors all around the world at large, i work with REO International and will love to get more of your work soon, keep up the good work it is helping a lot of us that in this business.
    I have learn so much on Draft survey that want you to know. May God bless u.
    I am a young surveyor and will love to learn more.

17. dear suveyor,

    good day!

    your 7s-OilCal-T6.T54 (trial software) is very useful, but could you pls. add several more lines for the software, now there is only 3 lines for F.O caculation and two lines for G.O caculation.
    thanks and best regards.
    hui

18. i like your site very informative and helpful .You shared your knowledge to everyone.nice work

19. pls sir,i appriciate ur work,i need ur help on how to calculate the volume or a ship tanker capacity without the tank chart book. Is there any training i need to attend on bunker survey or books.ebitimiwesly@live.co.uk

20. Hi Sanderson,

    I have checked your blog, thats nice. its better if you change the language in english. So more people will attract. Good work..

    Regards,
    Surveyors

21. Hi Moises,

    Thanks, nice to hear from you.

    Regards,
    Surveyors

22. Hello,

    I would like to say that i like your blog.

    When I was thinking of creating my blog, your blog was the first that I found on the internet and your blog inspired me.

    I’m Brazilian Marine Surveyor since 2003.

    Congratulations.

23. blogwalking from pelaut batam

24. I am now feeling more competative and clear on oil calculations. I am doing draft here in Mozambique port of Beira and I been facing some problems with how to calculate oils on board vessel, So with this information I have learn from your posted software I now grew up intelligently, AND WOULD LIKE TO THANK YOU VERY MUCH , more posts next time Thank you

    Moises

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