What is API tubing?
API (American Petroleum Institute) tubing is used in the oil and gas industry for various applications, primarily in the production and transportation of oil and gas from wellheads to processing facilities. These tubes are an integral part of the downhole equipment in oil and gas wells.
What size is API tubing?
Common API steel grades for tubing pipes:
Common sizes (inches/mm): 1.050" (26.7 mm), 1.315" (33.4 mm), 1.660" (42.2 mm), 1.900" (48.3 mm), 2.375" (60.3 mm), 2.875" (73.0 mm), 3.500" (88.9 mm), 4.000" (101.6 mm), 4.500" (114.3 mm).
What size is casing tubing?
Casing Pipe Size range: 5 1/2 "to 20" Length usually in R3. Tubing Pipe dimensions range: 1.0 ", 1.315", 1.66 ", 1.9", 2.063 ", 2 3/8", 3 1/2 "and 4 1 /2", Length in R2. Type of connections for Casing: BTC (thread coupling buttress), LTC (long round thread coupling), premium connection.
What is the OD tolerance of API tubing?
From API 5CT, OD tolerance for pipe smaller than 4.5″ is +/- 0.031″ (0.019 mm). For 4.5″ or larger, OD tolerance is +1.00%, -0.5%.
What is the difference between casing and tubing?
Purpose: Casing provides structural integrity, isolates formations, and protects groundwater. Tubing primarily aims to transport oil and gas from the reservoir to the surface, protecting the casing from production fluids. Size: The casing is a larger-diameter tubular, typically 4.5" to 30" or more.
