CTCI REI Executed CPC EPC Project of 26" Gas Pipeline Installation Using Horizontal Directional Drilling Method, A New Milestone for Submarine Gas Pipeline in Taiwan

CTCI REI executed CPC's Taichung Plant's CPC EPC Project of 26" gas pipeline installation using innovative Horizontal Directional Drilling (HDD) method, which successfully overcomes the challenges in gas pipeline engineering of cobble and gravel layer barrier and complicated construction accuracy problems, and completed the longest and deepest submarine HDD natural gas pipeline in Taiwan using highly challenging 3D linear layout to install gas pipeline underground. As such, the project has been awarded the 2018 "Excellent Underground Pipeline Engineering Award" of the Chinese Taipei Society for Trenchless Technology. 

This EPC project is part of the Taichung Plant Phase II investment plan, which includes the most difficult four-section obstacle crossing for the 26-inch long-distance gas pipeline from Taichung Plant to Wuxi Gas Station, with a total length of 3,861m. It was completed on January 14th, 2018. This project is the first HDD project to implement the air hammer pound casing method with auger in Taiwan, successfully overcoming the 15-meter-thick gravel layer. Two rigs were used to drill at both entry and exit sides and interconnecting underground at the rock bed, thereby solving the construction technical problem of fixed-exiting drilling points in a long-distance construction. Also on the Taichung Port section, a highly challenging 3D linear layout is utilized to install pipeline beneath the channel of Taichung Port so as to cross the existing harbor and anchor structures, while the depth of pipeline buried was adjusted. The end product is a pipeline with a caliber of 26-inch, a EL.- of 52.6m, and a length of 1,419m, the largest in Taiwan for each aspect, creating a milestone for submarine pipeline HDD engineering.

Under the meticulous planning of CTCI REI, the project has been delivered 43 calendar days ahead of the schedule. In addition to complying with the government's energy policy to increase the stability of gas power supply, the successful completion of this project has greatly improved the domestic HDD construction technology, serving as a successful experience for the domestic industry.

Chairman Wu, Guo-An (right) and Project Manager Dixon Chen (left) received the award of 2018 “Excellent Underground Pipeline Engineering Award” from Professor Keh-Jian Shou, Chairman of the Chinese Taipei Society for Trenchless Technology on behalf of CTCI REI.