Caption: Figure 2: Results from simulated hydrostatic test and subsequent pressure cycling.
Pipeline operators can use the predictive software to make more effective decisions for repair and replacement and reduce the frequency of costly inline inspections or hydrostatic tests.
The amendment deleted the requirement for hydrostatic tests
from one portion of the contract, and reduced the test in another section of the contract from 225 psi to sixty-five psi.
We are recognized in the industry for our mud pumps and mud cleaning systems, so a hydrostatic test
pump package fits well into our product line.
Fortunately, the next generation of hydrostatic test systems has begun to rely on hydraulic drive.
Systems such as Samson allow small- to medium-size construction companies to come on site with one piece of equipment and knock out the hydrostatic test just like the big boys.
OnTest is the revolutionary testing and data acquisition system that allows pipeline operators and integrity managers to view the same hydrostatic test
information that is displayed in the mobile testing facility, as well as, all stored test information and reconciliation calculations.
Separately, the utility has plans to do 95 hydrostatic tests
this year, covering 150 miles of its transmission pipe in HCA locations.
A typical industry hydrostatic test
involves purging all natural product out of the pipeline, cleaning the inside of the pipeline, filling the pipe segment with water and pressurizing the pipeline to a level higher than normal operating pressure and "holding" that pressure for a predetermined time duration.
The valve technician will ensure that all of the hose and valve connections are properly made up to eliminate the risk of leakage and a failed hydrostatic test
This new instrumentation kit is said to be a quick and cost-effective way to perform hydrostatic tests
on pipelines, offering many advantages over traditional systems relying on dead weight testers, and pressure and temperature chart recorders.
It considers multiple mechanisms for crack growth, including time-dependent cracking during hydrostatic tests
and fatigue cracking due to pressure cycles.