Seamless production tubing for completion and workover orders
Production tubing has to fit the completion at its connections as well as along its body. We supply seamless API 5CT tubing for oilfield distribution and well-contractor orders, with J55 catalog selections and named non-upset or external-upset ends. The offer identifies the body wall, end finish and required length basis for each tubing item.
| Pipe body | Seamless steel tubing |
|---|---|
| Core grade | API 5CT J55 |
| Published body diameter | 1.050–4.500 in. OD |
| Non-upset option | NU / NUE connection identified on the tubing line |
| External-upset option | EU / EUE end configuration and its mating coupling |
| Delivered lengths | Specified range and actual joint tally |
Match the OD and nominal wall before adding the end configuration. These are tubing body dimensions, not coupling clearances.
| Body OD (in.) | Body OD (mm) | Nominal wall (in.) | Wall equivalent (mm) |
|---|---|---|---|
| 1.050 | 26.7 | 0.113 | 2.87 |
| 1.315 | 33.4 | 0.133 | 3.38 |
| 1.660 | 42.2 | 0.140 | 3.56 |
| 1.900 | 48.3 | 0.145 | 3.68 |
| 2.375 | 60.3 | 0.190 | 4.83 |
| 2.875 | 73.0 | 0.217 | 5.51 |
| 3.500 | 88.9 | 0.216 | 5.49 |
| 3.500 | 88.9 | 0.254 | 6.45 |
| 4.500 | 114.3 | 0.271 | 6.88 |
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J55 entries from our seamless tubing catalog. The listed inch wall is the reference; metric wall equivalents are calculated at 25.4 mm/in. and rounded to two decimals. NU or EU finish, nominal mass and length complete the ordered item.
Tubing is supplied against its material and delivery specification. The well completion establishes the service requirements. Working pressure and corrosion-service approval come from that completion design.
The J55 selections give a defined starting point for a tubing order. Additional grades require their full types and delivery conditions, including the distinction between N80-1 and N80Q or the selected L80 type.
An order using API 5CT 11th edition names any required supplementary provisions directly. Previous-edition PSL wording is reconciled with the adopted edition.
The non-upset end has a different connection geometry from external-upset tubing. Its mating coupling and thread finish remain part of the tubing designation, even where the body OD and wall match another selection.
An EU end has a locally enlarged section before the connection is machined. That end geometry supports a different connection envelope; the outside clearance has to be read from the selected end and coupling data, separate from the body table.
End machining, connection inspection and fitted protectors form one preparation route. Protectors shield the finished threads during handling; they are removed for assembly; pressure-sealing caps are a separate item.
Tubing sits inside a casing system with separate hanger and downhole equipment interfaces. Body bore, coupling envelope and the selected thread form are matched to that completion schedule.
A replenishment order preserves the previous tubing designation instead of selecting by nominal size alone. Separate size, wall and end-finish lines also make mixed distributor inventory easier to receive and identify.
The specified drift mandrel checks a usable passage through the joint. Its diameter and length matter to downhole-tool clearance; a nominal ID calculated from the body dimensions is a different value.
Inspection distinguishes pipe-body dimensions from the enlarged end and coupling. Damaged thread crests, dents at an upset transition or contamination in the coupling bore are addressed before end protection and packing.
Tubing marks link the delivered joints to the material and agreed inspection records. Any additional examination, special drift or purchaser witness requirement stays identified in that release scope.
Bundles distinguish OD, wall or nominal mass, grade and NU or EU end finish. Grouping by diameter alone would leave receiving staff to separate different connection items after unloading.
Fitted end protection and suitable dunnage keep finished ends away from handling contact. Restraints support the long joints without bearing directly on an exposed coupling edge.
The tally accounts for delivered joints and total footage. Our quote separates the selected tubing lines, end work, packing and delivery terms; the production schedule is distinct from transport time.
The end configuration is read from the upset and coupling data.
| Order detail | Non-upset tubing | External-upset tubing |
|---|---|---|
| Pipe body | OD and wall on the tubing line | OD and wall on the tubing line |
| End section | No external upset enlargement | Enlarged external-upset section |
| Connection clearance | Selected NU coupling envelope | Selected EU upset and coupling envelope |
Use the actual end-connection drawing for clearance. Neither configuration is a substitute for a separately qualified proprietary connection.
A spare coupling is a separate piece quantity, matched to the tubing size, grade and connection designation. Our offer identifies the coupling supplied with each threaded joint and lists any extra couplings separately, so the tubing count is not mistaken for the spare-parts count.
No. External-upset describes an end configuration. A proprietary or specially qualified connection needs its exact designation and performance documentation; the EUE abbreviation does not establish that qualification.
A cut section is not yet a finished threaded pup joint. The finished length, end configuration, thread preparation and inspection requirements must describe the short joint being purchased.
Transit protectors are removed before making up the connection. Their purpose is to protect finished threads during storage and transport; they are not a pressure-containing connection component. The running procedure covers removal, cleaning, inspection and the specified thread compound.
It may omit the required type. N80-1 and N80Q identify different delivery-condition requirements. Use the complete designation from the approved tubing specification when matching replacement material.
No. The well environment and approved material requirements determine corrosion and sour-service suitability. A J55 grade name alone is not evidence that the delivered tubing satisfies those additional conditions.
Other items in the same product category.
We wrote these for buyers specifying and receiving exactly this kind of package.
Provide the tubing size, wall or nominal weight, grade, NU/EU or other named connection, length basis and joint quantity. A completion schedule or existing material list can carry those details. Add the destination for an itemized tubing offer.