Dewatering

The process of Dewatering is to remove the test water from the pipeline prior to drying. However often it is necessary for the testing contractor to push or move water from the tested pipeline to the next test section. This particularly important when there is a limitation to water sources nearby and preservation of the water is of high importance. By virtue of Trans-Asia Pipeline experience and expertise we will ensure that the client’s pipeline is dewatered safely and successfully.

Trans-Asia Pipeline is capable of dewatering pipelines quickly and safely under any circumstances including high head situations. Using our compressors we are able to overcome head pressures in front of pigs. In general however the number of compressors needed and their operating pressures will depend on the characteristics of the test sections.

After the Hydro tests the best dewatering methods leaves a film of water clinging to the inside pipe wall. So therefore it is necessary to remove this water to eliminate the formations of hydrates and the possibility of the onset of internal corrosion causing carbon dioxide and hydrogen sulphide or to meet the moisture specification for the delivered product.

Drying is mandatory before commissioning especially for dry crude oil or dry gas service. Trans-Asia Pipeline has the expertise and equipment to ensure that your pipeline will meet or exceeded the drying specifications in the least amount of time at the lowest possible expense.