Tools for Pipeline Models
Transcript of Tools for Pipeline Models
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Tools for Pipeline Models
Saudi Aramco Flow Assurance Technical Exchange MeetingDhahran, Saudi Arabia November 1-2, 2015John D. Yurchevich PE
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Tools for Pipeline Models
Safety Moment - Stair Safety
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On December 25, 2013, I fell down stairs at my house.
I had both hands full of boxes and I was wearing a long
housecoat.
When I started down the stairs my dog decided to race me
down and I either tripped over the dog or my housecoat.
I fell down 9 steps and landed face first on a hardwood
floor.
I cracked three ribs and damaged my shoulder requiring
surgery. The doctor said I was lucky!
Please learn from my mistake.
Always keep 1 hand on the hand rail and proceed with caution.
Saudi Aramco Flow Assurance Technical Exchange Meeting
Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
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Tools for Pipeline Models
Developing Digital Data from Graphical Pump Curves
3Saudi Aramco Flow Assurance Technical Exchange Meeting
Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
This is what you get: This is what you want:
The following tool can be used to create
tabulated data from the pump curve.
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Tools for Pipeline Models
Developing Digital Data from Graphical Pump Curves
4Saudi Aramco Flow Assurance Technical Exchange Meeting
Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
The UN-SCAN-IT Graph Digitizer converts graph images to their underlying x vs y data automatically. UN-SCAN-IT
digitizer software works with most image formats (TIFF, JPG, BMP, GIF, etc.) from any scanner, digital camera, or other
image source to digitize plots, strip charts, instrumental output, old graphs, published graphs, etc. In addition to the many
graph digitizing features, UN-SCAN-IT can also integrate peak areas, smooth the data, take derivatives, re-scales graphs
and exports the x vs y data for use in other software programs.
If you have ever had to guess at the data values on printed graphs, hold two graphs up to a light to compare features, use
a planimeter
or cut and weigh technique to find peak areas, or "squint and click" on each point with a digitizing tablet, then you will f ind
UN-SCAN-IT to be an accurate, quick, and easy solution.
The Program
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Developing Digital Data from Graphical Pump Curves
5Saudi Aramco Flow Assurance Technical Exchange Meeting
Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
Using Un-Scan-It
Initial View
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Tools for Pipeline Models
Developing Digital Data from Graphical Pump Curves
6Saudi Aramco Flow Assurance Technical Exchange Meeting
Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
Lets Digitize the pump performance map we saw previously.
Initial View
http://snagi%20demo.avi/ -
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Developing Digital Data from Graphical Pump Curves
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Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
This is what we want.
The data can now be copied and pasted as needed.
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A Tool to Generate Pump Curves From a Single Point
8Saudi Aramco Flow Assurance Technical Exchange Meeting
Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
What if we want to use a pump curve but we do not have any data?
Amec Foster Wheeler has developed a tool to generate pump
curve data from a single Head/Flow pair.
Required Inputs:
Flow at BEP (gpm); Head at BEP (ft);
Peak Efficiency (fraction);
Specific Gravity;
Shut-Off Head Rise Fraction (optional);
Pump Run-Out Fraction (optional); and
Exponent for Efficiency Equation (optional)
Pump Curve Generator
http://pump%20curve%20generator.exe/http://pump%20curve%20generator.exe/ -
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A Tool to Generate Pump Curves From a Single Point
9Saudi Aramco Flow Assurance Technical Exchange Meeting
Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
Lets use the data from our example curve:
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Tools for Pipeline Models
A Tool to Generate Pump Curves From a Single Point
10Saudi Aramco Flow Assurance Technical Exchange Meeting
Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
Lets use the data from our example curve:
Required Inputs:
Flow at BEP (gpm); 4700.0
Head at BEP (ft); 162.0
Peak Efficiency (fraction); 0.8
Specific Gravity; Shut-Off Head Rise Fraction (optional); 1.36
Pump Run-Out Fraction (optional); and
Exponent for Efficiency Equation (optional)
Pump Curve Generator
http://pump%20curve%20demo.avi/http://pump%20curve%20demo.avi/ -
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Tools for Pipeline Models
A Tool to Generate Pump Curves From a Single Point
11Saudi Aramco Flow Assurance Technical Exchange Meeting
Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
Results
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Simplifying Elevation Profiles
12Saudi Aramco Flow Assurance Technical Exchange Meeting
Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
Pipeline modelers are provided elevation profile in many ways:
1. Alignment Sheets;
2. Data from GPS (manypoints often only feet apart); or
3. Data from Google Maps.
If the data comes from alignment sheets, they are typically read by
hand. However you can use UN-SCAN-IT.
Data from Google Maps can be used for new pipelines to get the
relative elevation between stations, valve, etc.
Data from GPS usually is provided in a text file or a spreadsheet.
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Simplifying Elevation Profiles
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Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
Here is an example of the data provided in an ASCII text file.
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Simplifying Elevation Profiles
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Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
Import file into Excel and save it.
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Simplifying Elevation Profiles
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Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
Plot the data in Excel. All 844 pairs.
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Simplifying Elevation Profiles
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Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
Run the Data Reducer Application
Adjust the number of points in the reduced elevation profile by adjusting
the slope tolerance (0 1000).
Rerun the application by selecting
Check the comparison of the existing profile and reduced profile for any
missing data.
Copy and paste the data as needed.
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Capturing Output From Your Program or Desktop
17Saudi Aramco Flow Assurance Technical Exchange Meeting
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John D. Yurchevich PE
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Capturing Output From Your Program or Desktop
18Saudi Aramco Flow Assurance Technical Exchange Meeting
Dhahran, Saudi Arabia November 1-2, 2015
John D. Yurchevich PE
What you can do with Snagit: Capture an Image;
Capture a Region, Window or Scrolla Window;
Capture the Entire Screen;
Capture a Fixed Region;
Capture an Object;
Capture a Menu; Capture a Shape;
Capture the Clipboard Contents;
Capture Off-Screen or Window Larger than Screen;
Capture multiple Areas of the Screen;
Capture Using a Time Delay or Schedule;
Capture a Video up to 1 GB;
Include Cursor if Desired.
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What you can do with Snagit: Capture an Image;
Capture a Region, Window or Scrolla Window;
Capture the Entire Screen;
Capture a Fixed Region;
Capture an Object;
Capture a Menu; Capture a Shape;
Capture the Clipboard Contents;
Capture Off-Screen or Window Larger than Screen;
Capture multiple Areas of the Screen;
Capture Using a Time Delay or Schedule;
Capture a Video up to 1 GB;
Include Cursor if Desired.