What does EUE mean in tubing?

The API external-upset-end (EUE) tubing connection is widely used because it is a good, serviceable connection in most wells. The EUE joint has a designed joint strength in tension and pressure strength greater than that of the pipe body and, therefore, is considered a 100% joint efficient connection.

Is EUE a premium connection?

Connection types For low pressure wells API 8RD thread connections have been the standard in the tubing strings. Non upset has proved more effective than upset (EUE) 8 RD tubing. Connections provided with metal-to-metal seals are commonly referred to as Premium connections.

What is upset tubing?

Upset Tubing is a long tubing joint which is installed in a wellbore to facilitate the extraction of oil and gas. It acts as a conduit, through which the produced fluids or gas get transmitted from the bottom to the surface.

What is EUE oil and gas?

Definition(s) External upset end. Source: API RP 5C5, Recommended Practice on Procedures for Testing Casing and Tubing Connections, Third Edition, July 2003 (Reaffirmed August 2010).

What is internal flush thread?

A type of tubing connection in which the internal or external surfaces are the same diameter throughout the tubing joint. Internal flush joints are most common, offering no restriction to fluid flow.

What is if connection in drill pipe?

IF(Internal-flush style connection) This type of tool joint thread connects EUE or inside and outside thickened drill pipe, forming the inner diameter of the drill pipe joints, tube inner diameter and thick pipe inner diameter is equal to the inner diameter or approximate size.

What is J55 tubing?

Pipes that belong to grade J55 have a minimum tensile strength that is lower while exhibiting properties similar to grade K55. Similar to most API specifications, the industry to benefit the most by using the API 5CT J55 Casing Tubing is natural gas, oil and petroleum industry.

What is external upset tubing?

1. n. [Well Completions] A type of tubing connection in which the external diameter of the tubing joint is larger adjacent to the tubing connection to provide the necessary strength. The internal tubing surface is flush to enable good fluid-flow characteristics.

How do you calculate tubing stretch?

Total Elongation is simply calculated by adding the components of elongation. Thus the total elongation is given by: S TOTAL = S tubing weight + S chemical weight + S pump force + S thermal S TOTAL = 16.2 ft + 2.2 ft + 0.2 ft + 16.8 ft .

What does EUE stand for in tubing category?

API EUE = External Upset End tubing connections. The EUE joint has a designed joint strength in tension and pressure strength greater than that of the pipe body and, therefore, is considered a 100% joint efficient connection. For proper lubrication and sealing, the joint requires thread compound as defined in API RP 5A3 .

Why are EUE tubing couplings used in most wells?

The API external-upset-end (EUE) tubing connection is widely used because it is a good, serviceable connection in most wells. The EUE joint has a designed joint strength in tension and pressure strength greater than that of the pipe body and, therefore, is considered a 100% joint efficient connection.

What is the thread compound for EUE tubing?

For proper lubrication and sealing, the joint requires thread compound as defined in API RP 5A3 . To improve the seal performance of API EUE tubing in high-pressure service, a grooved coupling, which accepts nonmetallic seal rings, is sometimes used in the coupling (see API Spec. 5CT SR 13 ).

What kind of connection is used for tubing?

When casing is used as tubing, long-thread coupling/short-thread coupling and buttress-thread coupling connections can be specified. The API external-upset-end (EUE) tubing connection is widely used because it is a good, serviceable connection in most wells.