Design Engineering & Project Management 

ALP was awarded the contract for the Front-End Engineering Design (FEED) of the Sarybulak gas fields’ development project including verification of the subsurface models and surface design supervision. This project included two fields, a central processing plant (CPF) and a 94km gas export line to the Chinese border where a separate LNG plant was situated to process the gas to LNG. 

The sub-surface models indicated potential for sand erosion issues and condensate drop out. The design incorporated appropriate facilities to counter the risk highlighted by the sub-surface work.

The main gas field's manifold header had 17 wells stretching over a distance of 14 km whilst the second field's manifold header had 4 wells stretching over 8 km. The gas export pipeline was 94 km to the border where the fiscal metering package monitored the gas export to China.

The FEED study included the basic design of a separation train, gas compression train, oxygen removal package, gas sweetening package, gas dehydration package, LPG & NGL recovery & bottling, flow assurance for the export line and produced water re-injection. Following on the FEED, ALP was awarded the contract for detailed design and construction of the Gas Dehydration Package and supervision of the upgrade and reconditioning of the Gas Booster Compressors and Solar T60 Gas Turbine Generators (detailed below). 

Following FEED ALP did the detailed design, project management and supplied the gas dehydration package utilising Molecular Sieve design, with Grace Sieves. ALP sourced and free issued items to our fabrication partner for the completion of a high-quality package. 

ALP supervised the supply of two x two-stage centrifugal gas compressors manufactured by Atlas Copco including upgrade and conversion of used Atlas Copco gas compressors including full refurbishment, conversion from 60Hz to 50Hz and a change of design conditions.