27 June, 2022

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China developed deep trenching know-how breaks world information

Chinese language and native workers work on a crude oil pipeline in a CNPC venture in Chad.
Photograph: CFP

A multi-functional modular seabed trencher developed by a Chinese language agency has not too long ago accomplished 100 kilometers of pipelines development in Bangladesh’s first marine pipeline venture, setting two world information in directional drilling and deep trenching.

The seabed trencher was self-developed by state-owned China Petroleum Pipeline Engineering Co (CPP), which is an expert firm specializing in establishing oil & fuel storage and transportation infrastructure, below the China Nationwide Petroleum Company.

The set up of the marine pipeline venture in Bangladesh, one of many key tasks below the Belt and Street Initiative, wants to finish six directional drillings and attain a buried depth of 11 meters to keep away from the industrial and naval waterways, making the unprecedented issue within the historical past of world marine engineering, CPP stated.

Based on studies, the traditional depth of trench digging within the offshore trade is 1.5 meters to three meters below the seabed, and reaching 5 meters is already a tough venture for the trade.

To cope with technical difficulties, CPP has carried out unbiased improvements and upgraded trenching machines to realize a most digging depth of 11.9 meters, mastered the underwater millimeter-level docking know-how of offshore single-point mooring and adopted the unique approach that ensured a one hundred pc success in one-time drilling.

After the venture is put into operation, oil tankers above 100,000 DWT that can’t dock to unload oil at ports in Bangladesh, CPP stated.

As an necessary oil and fuel storage and transportation venture in Bangladesh below the Belt and Street Initiative, the venture was launched as Bangladesh shouldn’t be able to dealing with giant vessels carrying imported crude and completed oil because of low navigability of a key river channel and constrained amenities on the essential seaport in Chittagong, the Xinhua Information Company reported.

In December 2016, Bangladesh reached an settlement with CPP for engineering, procurement, development and commissioning for the set up of single level mooring with 220-kilometer-long double pipelines, together with constructing a 146-kilometer-long offshore pipeline and 74-kilometer-long onshore pipeline to hold imported oil from sea to a refinery in Chittagong district.

The venture is anticipated to have an annual unloading capability of 9 million tons.

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