Composite Tubing for Oilfield: Types & RFQ Buyers Guide
When buyers search composite tubing for oilfield workovers, injection, or gathering strings, they need a plain map of which product family the RFQ means — GRE/FRP thermoset tubing, continuous/spoolable composite lines, or other composites — and which fields to freeze before quotes.
IFGS is a sourcing and QC partner. We connect buyers to licensed partner factories in China and worldwide, clarify which oilfield composite tubing family the enquiry means, confirm RFQ fields against factory data sheets, compare quotes and run or coordinate pre-shipment QC. IFGS does not own a factory and holds no API license; the license holder is the factory named on its certificate, which you can verify on the API Composite List.
Composite tubing types map for oilfield RFQs
Search demand for composite tubing often blends several product families. This page owns the umbrella composite tubing types map for oilfield RFQs — not a deep GRE tubing rewrite, and not a hobby guide. Use the table to name one family per comparable quote line, then follow the linked depth pages for Spec language.
| Family | Typical construction language | Where buyers use it | Spec language to check | Link |
|---|---|---|---|---|
| GRE / FRP thermoset tubing (stick / jointed) | Glass-reinforced epoxy or other thermoset resin; stick joints; threaded or bonded ends as project-specified | Oilfield tubing strings for workover, injection and corrosive service where buyers say gre tubing or frp tubing oilfield | Thermoset stick-tubing documents the end user names (often 15HR or 15LR language — keep them distinct). Confirm factory certificate scope. | GRE tubing buyers guide · GRE tubing oilfield RFQ · RTR pipe |
| Continuous / spoolable thermoplastic composite (RTP / flexible composite) | Thermoplastic liner + reinforcement; continuous or spoolable composite tubing language; factory end fittings as named | Gathering, injection or flowline-style strings where buyers say continuous composite tubing or spoolable composite tubing | Spoolable / flexible documents differ — API Spec 15S ≠ 17J ≠ 15HR/15LR. Quote only against the named document. | RTP pipe buyers guide · API 17J flexible composite pipe |
| Out of scope (hobby / non-oilfield) | Hobby filament tubes, consumer “composite tubing,” non-pressure craft stock | Not oilfield RFQs — do not mix into the same quote line | No oilfield Spec family applies; keep these out of the enquiry | — |
Resin-system contrast once (do not rehash): thermoplastic pipe vs thermoset composite pipe. Spec-family compare once: API 15HR vs 15LR vs 15S buyers guide. Line-pipe size language is a different RFQ path: fiberglass line pipe sizes & pressure ratings. If the enquiry is rods rather than tubing, park it separately: fiberglass sucker rod buyers guide.
How to freeze the RFQ so quotes match
Oilfield composite tubing quotes diverge when one bidder answers GRE stick tubing and another answers spoolable thermoplastic composite on the same line. Freeze these fields before you send the enquiry:
- Product family — GRE/FRP thermoset tubing or continuous/spoolable thermoplastic composite (one family per comparable line).
- Size basis — OD, ID or nominal as the project names it; confirm how the factory drawing labels it. No invented IFGS size catalog.
- Pressure / temperature — design pressure, test/hydrotest language, temperature and fluid service (project-specified; confirm on the factory data sheet).
- Joint or end connection — stick-joint family for thermoset tubing, or factory end-fitting language for spoolable lines — never mix both on one line.
- Spec family (if any) — name the exact document. 15HR ≠ 15LR ≠ 15S ≠ 17J. IFGS holds no API license; the license holder is whoever the factory certificate names.
- Documents — factory data sheet, drawing, ITP / hydrotest plan, marking vs PO.
- Destination — destination, Incoterm and packing.
- QC evidence — inspection report, dimensional checks, hydrotest records before release; hold points: pre-shipment inspection checklist.
Common mix-ups
- “Composite tubing” ≠ always GRE tubing. GRE / FRP thermoset tubing is one oilfield family under the umbrella. Buyers comparing composite tubing vs gre tubing should freeze family first, then open the GRE depth pages linked above.
- Thermoset ≠ thermoplastic. Stick GRE/FRP tubing and spoolable RTP / flexible composite use different construction and Spec language. Keep them as separate line items.
- Spec family must match the product family. Do not paste 15HR language onto a spoolable 15S / 17J enquiry, or the reverse. Confirm the producing factory’s certificate scope against the named document.
- Tubing ≠ sucker rods ≠ line pipe sizes. Rods and line-pipe diameter catalogs are different RFQ paths — link once above; do not merge them into this types map.
RFQ checklist for oilfield composite tubing
Copy into the enquiry:
- Product family — GRE/FRP thermoset tubing or continuous/spoolable thermoplastic composite (one per line)
- Size basis — OD, ID or nominal + how the factory drawing names it
- Pressure / temp / fluid — design pressure, test language, temperature and fluid service (project-specified; confirm on factory data sheet)
- Joint / end connection — stick-joint family or spoolable end-fitting language
- Spec family — if any (15HR ≠ 15LR ≠ 15S ≠ 17J); name the exact document
- Documents — factory data sheet, drawing, ITP / hydrotest plan, marking vs PO
- Destination — destination, Incoterm and packing
- QC evidence — inspection report, dimensional checks, hydrotest records before release
- Supplier path — how buyers qualify a producer (certificate scope, data sheet match); composite tubing suppliers are compared on family + Spec match, not on vague “composite” wording alone
How IFGS works on this order
IFGS first clarifies which oilfield composite tubing family the RFQ means. We then confirm size, pressure/temperature, joint/end, Spec family (if any), documents and destination against the enquiry, compare quotes from licensed partner factories in China and worldwide whose certificate scope matches the named document, agree the ITP, and run or coordinate pre-shipment QC. IFGS does not run a lab or production line — the producer is the licensed partner factory on the certificate.
See the product range and about IFGS.
Next step
Contact us / request a quote
· Ask IFGS AI
FAQ
Is composite tubing the same as GRE tubing?
No. GRE tubing (glass-reinforced epoxy thermoset stick tubing) is one oilfield family under the broader composite tubing search. Continuous/spoolable thermoplastic composite lines are another. Freeze the family on the RFQ before you compare prices; use the GRE buyers guide and GRE oilfield RFQ pages for GRE depth.
When does an RFQ need API 15S vs 17J vs 15HR/15LR language?
When the end user names a Spec. Stick thermoset tubing RFQs often cite 15HR or 15LR language (keep them distinct). Spoolable / flexible thermoplastic composite RFQs may cite 15S or 17J language — those documents are not interchangeable with each other or with 15HR/15LR. Quote only against the named document and the factory certificate scope. IFGS holds no API license.
What documents should buyers ask for before award?
Ask for the factory data sheet and drawing that match the frozen family and size/rating language, the ITP / hydrotest plan, marking vs PO language, and QC evidence (dimensional checks, hydrotest records, inspection report) before release. Confirm Spec-family certificate scope on the producing factory’s certificate when a Spec is named.
What should I ask IFGS to confirm?
Ask IFGS to confirm product family, size basis, pressure/temp/fluid, joint or end connection, Spec family (if any), documents, destination and QC evidence against the RFQ, then compare quotes from licensed partner factories whose certificate scope matches. Contact sales or start with IFGS AI.