Multi-function completion tool

A method for testing a tubing string, comprising the following steps in sequence:

• (a) providing a testing tool comprising a sleeve moveably disposed within a housing, a plug operatively connected to the sleeve within the housing, a peripheral annulus disposed between the housing and the sleeve, a lower retention assembly disposed beneath the sleeve within the housing, and a pressure ring disposed beneath the lower retention assembly;
• (b) operatively connecting the testing tool to a tubing component;
• (c) lowering the testing tool to a first test depth within a wellbore;
• (d) applying a first pressure within the tubing string, sufficient to cause the testing tool to enter a testing configuration;
• (e) evaluating the tubing string at the first pressure;
• (f) moving the testing tool to a second test depth within the wellbore;
• and
• (g) repeating steps (d)-(f) until the occurrence of one selected from (1) the detection of a defect in the tubing string, and (2) the reaching of a desired depth for termination of testing.

A method for manufacturing a downhole tool, comprising:

• providing a housing;
• providing a sleeve with at least one opening formed in a wall thereof;
• operatively connecting a plug to one end of the sleeve using at least one plug retention element
• providing a lower retention assembly comprising a cap operatively connected to a seat;
• disposing the sleeve within the housing, below an upper sleeve retention element, and oriented with the operatively connected plug at an opposite end from that nearest the upper sleeve retention element;
• and
• operatively connecting the lower retention assembly to the housing beneath the sleeve using at least one seat retention element.