Optimising Water System Design for Unconventional Gas Fields
Presented at GPA Europe Ltd AGM & Technical Meeting, London, 24 November, 2016 by
Phil Burris, Advisian
The paper will discuss water management and efficiency techniques governing the handling of multiple waste-water streams including produced water and flow-back water from large-scale unconventional gas developments. The paper will be presented from the perspective of water resource management with reference material from a case study. The case-study comprises a mega-field (1200mmscfd) extracting from two stacked, tight gas reservoirs with remote collection, gathering and centralised processing. Design modification of the water systems was undertaken for a dual purpose: a) future-proofing and debottlenecking the produced water treatment for the expected later high produced water flows and b) segregating and creating a more water-efficient control scheme that benefitted the overall water cycle, energy management, capital / operating cost and environmental footprint of the project.