AN INTERNET BASED USER ACCESSED PROGRAM FOR CALCULATING COMPLEX PIPELINES AND CATENARY RISERS IN DEEP AND ULTRA-DEEP WATER

OPERATIONAL SEQUENCE

1. INPUT THE DATA AS INDICATED IN THE BOXES BELOW

2. PRESS SEND BUTTON BELOW TO POST DATA TO PipePredictor.comSM's COMPUTERS

3. WITHIN 20 TO 30 MINUTES, COMPLETE RESULTS WILL BE RETURNED TO YOU BY E-MAIL (VIEW SAMPLE OF EXECUTIVE SUMMARY)

PLEASE MAKE SURE TO REFRESH FREQUENTLY (PRESS F5) AS THIS PAGE MAY BE UPDATED DAILY!
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THIS FORM IS IN METRIC UNITS. CLICK LINK IF YOU REQUIRE YOUR INPUT TO BE ENGLISH STANDARD
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Click here if you need to make data conversions (will stay on top until closed)

Pipe Material Specification

(All diameters from smaller to larger. See foot note¹ )
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Ring 1
(or only pipe)
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Ring 2
(0 if N/A)
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Ring 3
(0 if N/A)
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Ring 4
(0 if N/A)
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Ring 5
(0 if N/A)
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Ring 6
(0 if N/A)
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Ring 7
(0 if N/A)
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Specific Weight:

kg/m3

Young Modulus:

MPa

Poisson Coefficient:

Material Yield:

MPa

OD (see foot note²):

mm

Wall thickness:

mm

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Pipe Specification note¹: Please input pipe characteristics from smaller to larger diameter, from concentric Ring 1 to Ring 7 (see drawing below). A ring can be made of any material, metal, coating or insulation. PLEASE LEAVE NO BLANK CELLS, INPUT 0 FOR NULL VALUES.
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OD note²: Auto will have the program automatically calculate ODs from the adjacent inner ring's OD and wall thickness. Overwrite Auto with your own figures if you want to force different values, to reflect gaps between rings for example. An alternative conserving the Auto feature for gaps is to consider the gap as an empty ring of 0 weight.
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Target Strain:

%

Click to enlarge drawings (will stay on top until closed).

Rings

Floating Construction Facility

Pipe is Submerged:

kg/m3 (outside fluid specific weight, 0 if N/A)

Pipe is Flooded:

kg/m3 (inside fluid specific weight, 0 if N/A)

Water Depth:

m

CoM: Center of Mass

CoB: Center of Buoyancy

Floating Construction Facility
(see drawing above right)

Note³: Floating Construction Facility, Hang-Off and CoM/CoB data will be used by program to calculate composite oscillations involving rolling and pitching. Leave default values if you don't require Dynamic Analysis or choose to force your own Heaving values (see Heaving note⁵ below)

Position of Hang-Off point from stern/centerline

Position of CoM/CoB from stern/centerline

Length:

m

Longitudinally Y(H):

Width:

m

Athwartships X(H)^*:

Longitudinally
Y(M)=Y(B)

Depth:

m

Height above CoM
Z(H)-Z(M):

Draft:

m

* Absolute value, always positive

Facility's oscillations

Amplitude (0 to max)

First Natural Period

Rolling:

deg

Note⁴: “Fixed Position” means facility's horizontal geographic position is made constant by use of Dynamic Positioning or tight anchoring

Pitching:

deg

Heaving (see foot note⁵):

m

Heaving note⁵: If you need the computation to reflect your own composite heaving behavior, just set rolling and pitching values to zero and input heaving figures only.
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