physics

Reinforced thermoplastic pipe

Reinforced thermoplastic pipe is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Reinforced thermoplastic pipe rather than just read about it. In short: Reinforced thermoplastic pipe (RTP) is a type of pipe reinforced using a high strength synthetic fibre such as glass, aramid or carbon. It was initially developed in the early 1990s by Wavin Repox, Akzo Nobel and by Tubes d'Aquitaine from France, who developed the first pipes reinforced with synthetic fibre to replace medium pressure steel pipes in response to growing demand for non-corrosive conduits for applicatio…

Key takeaways

Reinforced thermoplastic pipe belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Reinforced thermoplastic pipe to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Reinforced thermoplastic pipe from memory before moving on to harder problems.

Reference excerpt

Reinforced thermoplastic pipe (RTP) is a type of pipe reinforced using a high strength synthetic fibre such as glass, aramid or carbon. It was initially developed in the early 1990s by Wavin Repox, Akzo Nobel and by Tubes d'Aquitaine from France, who developed the first pipes reinforced with synthetic fibre to replace medium pressure steel pipes in response to growing demand for non-corrosive conduits for application in the onshore oil and gas industry, particularly in the Middle East. Typically, the materials used in the construction of the pipe might be Polyethylene (PE), Polyamide-11 or PVDF and may be reinforced with Aramid or Polyester fibre although other combinations are used. More recently the technology of producing such pipe, including the marketing, rests with a few key companies, where it is available in coils up to 400 m (1,312 ft) length. These pipes are available in pressure ratings from 30 to 90 bar (3 to 9 MPa; 435 to 1,305 psi). Over the last few years this type of pipe has been acknowledged as a standard alternative solution to steel for oilfield flowline applications by certain oil companies and operators. An advantage of this pipe is also its very fast installation time compared to steel pipe when considering the welding time as average speeds up to 1,000 m (3,281 ft)/day have been reached installing RTP in ground surface.

Primarily, the pipe provides benefit to applications where steel may rupture due to corrosion and installation time is an issue.

Technology and history The idea of synthetic fibre reinforced pipe has origins in the flexible hose and offshore industry where it has been frequently used for applications such as control lines in umbilicals and production flowlines for over 30 years. However, the commercialisation and realisation of a competitive product for the onshore oil industry came from a partnership between Teijin Aramid (supplier of aramid fibre Twaron) and Wavin Repox (manufacturer of reinforced thermoset pipes), where Bert Dalmolen initiated a project to develop such a pipe. He was later employed by Pipelife where a state of the art production line was developed to produce RTP. Pipelife also developed a pipe reinforced with steel wire to achieve even higher pressure ratings of over 150 bar (15 MPa; 2,176 psi) using steel reinforcement. Mr Chevrier (Tubes d'Aquitaine) also developed machinery that could produce such pipes, but was not successful in commercialising RTP.

See also Pipeline transport Plastic pipework Plastic Pressure Pipe Systems

References Notes

Bibliography

External links "JIP proposal 1999 from Newcastle University" (PDF). Archived from the original (PDF) on 2006-07-17. "Conference paper 23rd World Gas Conference" (PDF). Archived from the original (PDF) on 2007-09-28. (327 KiB) "API Qualification of RTP API RP 15S]" (PDF). Archived from the original (PDF) on 2007-09-28. CheFEM Software: Permeation Analysis of Annulus Condition

Illustrations

Worked examples

Example 1 — a first encounter with Reinforced thermoplastic pipe

Start with the simplest possible case. Write down what Reinforced thermoplastic pipe claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Reinforced thermoplastic pipe before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Reinforced thermoplastic pipe ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Reinforced thermoplastic pipe

In research: Reinforced thermoplastic pipe appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Reinforced thermoplastic pipe in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Reinforced thermoplastic pipe is common in secondary-school and first-year university syllabi. It links to neighbouring topics Composite materials, Fibre-reinforced polymers, Pipeline transport, so understanding it makes those chapters shorter.
In everyday life: Look for Reinforced thermoplastic pipe outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Reinforced thermoplastic pipe in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Reinforced thermoplastic pipe means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Reinforced thermoplastic pipe out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Reinforced thermoplastic pipe in simple terms?

Why does Reinforced thermoplastic pipe matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Reinforced thermoplastic pipe?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Reinforced thermoplastic pipe.