Title : Water treatment plant enhancement - maximize value for lower GHG
Abstract:
The Purpose of “A” Thermal Field Water Treatment Plant (WTP) is to remove hardness of Aquifer pump-off (APO) Well Water to make it suitable for Steam Generation. The process involves removal of suspended solids, traces of oil and dissolved minerals from water. The total water output from all phases is 18,350 m3/d in which it is used for steam generation and local WTP consumptions e.g. brine tank, regeneration process, and backwash.
In 2017 & 2019, Solar Miraah Phase-1 & phase-2 has been commissioned with a daily average capacity of 1,980 Tons of Steam Per Day connected to Amal steam injection systems and considering that the soft water supply will be provided from the same existing WTP. As an outcome of this change, a shortage of 2,000 m3/d of soft water had been identified resulted in an impact of Amal oil target KPI.
In 2020 a new CI has been identified within operation to debottleneck the existing WTP trains to increase its capacity and cater for total generators throughput and linked to forecasted steam demand with minimum modification.
The new scope execution was started, and total water production has been increased of around 3,000 m3/d resulting in maintain the supply of soft water to steam generators and maintain the steam demand within forecast.
This project has been completed with minimum spend on capex (15,000 USD) for logic modifications in DCS system.
By doing this modification, it resulted in below benefits (confirmed):
1-GHG Reduction of 4,600 TCo2e/yr due to reduction of blanketing gas in WTP soft water tank and avoidance of power consumptions for the additional water produced.
2-An oil secure of 390 m3/d from Amal fields due to securing the required soft water for steam injection.
3-An oil gain of average of 30 m3/d due to potential of project acceleration because of high availability of soft water.
4-A cost saving of more than 4.7 mln$ due to cancelation of other project to cater for water shortage.
Audience Take Away:
- Out of box solution developed within PDO resulted in high gain with less CAPEX
- They can get best of it for replication as applicable
- Is this research that other faculty could use to expand their research or teaching? Yes
- Does this provide a practical solution to a problem that could simplify or make a designer’s job more efficient? Yes, as this been implemented in one of the facility and shows the value
- Will it improve the accuracy of a design, or provide new information to assist in a design problem? Yes
