Oilfield Plastic BTC Casing Thread Protectors API Standard For Drill Pipe

1. Is BTC the same as a drill pipe connection?
BTC refers to a buttress casing connection. Select a protector for that casing connection and end geometry.
For drill pipe, provide its own complete connection designation and drawing instead of ordering a BTC protector by nominal diameter.
2. What should a BTC protector purchase specification include?
a. Nominal casing size and complete BTC connection reference.
b. Pin or box end and the drawing revision used for fit review.
c. Engagement length, seating position and required thread coverage.
d. PP grade, color and storage exposure requirements.
e. Clearance around the casing end and coupling, where applicable.
f. Quantity and packing identified by casing size and end type.
g. Any agreed acceptance tests and sample approval requirements.
3. How can the fit be checked before delivery?
1. Compare the protector with the approved connection drawing.
2. Check starting engagement on the intended casing end.
3. Confirm seating without forcing or cross-threading.
4. Inspect coverage and clearance around the protected thread.
5. Verify removal and inspect the protector for cracking or distortion.
4. What matters during storage and reuse?
1. Keep BTC items separate from STC, LTC, NC and REG protectors.
2. Label each batch by casing size and pin/box orientation.
3. State outdoor exposure and storage duration when selecting material.
4. Inspect for damaged engagement, loose fit and contaminated threads.
5. Reuse only when the protector still meets the agreed fit and coverage checks.

Other oilfield accessories require their own connection, dimension and material specifications.

Send the BTC casing size schedule and connection drawings or original samples for a quotation.