An Overview of Some Water Treatment Processes, Phosphonates, and Polymers for the Oil & Gas Industry, in an Era of Water Recovery and Recycling

Published on 07/11/2022 | by Waterline Admin

As featured in Waterline Summer 2022

An Overview of Some Water Treatment Processes, Phosphonates, and Polymers for the Oil & Gas Industry, in an Era of Water Recovery and Recycling

Colin Frayne, CSci, CChem, CEnv, CWEM, FRSC, FICorr, MCIWEM, FWMSoc, LRIC, CWT. Consultant, Aquassurance, Inc.
Barry B. Ekstrand, P.E., President & COO, Finoric LLC
June 2022


As a result of global population growth and an increased demand for energy and good quality water, the demand and supply positions for vital resources (especially water) varies considerably from country to country; but globally, freshwater withdrawals have increased six-fold over the last 100 years, and we all face an uncertain future due to critical worldwide water shortages and quality problems. In view of this crisis, this paper focuses on the oil and gas industry and their relatively large usage of water (e.g. for hydraulic fracturing fluids). It provides an overview on the types of standard water treatment separation processes available to implement the 3-Rs (i.e. Reuse, Recycle, Reclaim), and aims to further reduce water consumption. Additionally, this paper provides some guidance notes on the benefits, limitations, and application of phosphonates, polymers, and other waterside chemical inhibitors and performance additives, for selection by water treatment practitioners when confronted with more complex brine water chemistry.


Diary Dates & Events

Grime Scene


Following on from the successful Grime Scene competition, we have decided to continue the theme for another year, but with a twist. This year, we are asking for photographs of the grimiest pictures you can find accompanied with another photograph of how the ‘scene’ has been improved by your maintenance or cleaning.

We will display the photographs in each of the Waterline editions throughout 2024. The ‘most improved’ picture will be chosen by WMSoc members via an online vote. The winner will receive a £25 Amazon Gift Voucher after the Winter 2024/25 edition has been published.

Please send your photographs to:

Product & Service Spotlight

Introducing B & V Chemicals' new film forming amines for closed circuits and steam boilers.

Product Launch: Film forming amines.

This all-in-one solution offers low-dose, cost-effective treatment. Improves heat transfer efficiency by removing corrosion deposits, leading to cleaner surfaces. Enhances energy and resource efficiency by reducing Total Dissolved Solids (TDS). The stable film provided by polyamines ensures superior corrosion control, promoting longer equipment lifespan.

Plus - environmentally friendly, offering a greener alternative to traditional treatments.

Contact us on for further information.

How the NEW SolidTek® Biocide Feeder Package will BENEFIT YOU

SolidTek® has launched its NEW Biocide Feeder which is functional, compact, and environmentally-friendly.

Designed for use with SolidTek’s® enhanced bromine biocide, BromTek, it offers multiple benefits:

Reduced exposure to fumes and bromine dust (non-pressurised system).

Use with field proven mixed hydantoin biocide - better performance than standard bromine tablets.

Wall mounted reducing footprint of installation.

Charge with product in under 5 minutes without isolation from the system.

Product calculators and tech support available.

Lovibond MD640 Photometer (PTSA & Fluorescein capable)

Product Spotlight Drop Test Kits

How many times have you heard … ‘we’re not sure what the system volume is’. A common problem which can be expensive - wasting chemical over dosing, or underdosing so the treatment is ineffective (i.e. shock dosing a biocide). The MD640 photometer has PTSA & Fluorescein capability built in. Simply use our System Checkers to add to an unknown system and read a PTSA or Fluorescein levels to accurately identify the system volume.

The Hydrosense PRO range


The Hydrosense PRO range pioneers Legionella pneumophila detection, the cause of over 97% of Legionnaires’ disease outbreaks, by identifying all the serogroups 1-15 of this dangerous Legionella species. This easy-to-use, highly sensitive test uses unique filtration, offering a three-line test result that distinguishes between serogroup 1 and serogroups 2-15 within 25 minutes. The water test has a level of detection of 100 CFU/L and swab tests detect 200 CFU per swabbed area, providing crucial, rapid insights for water safety management.