Produced Water Treatment Technology, A Study of Oil/Water Separation in Gravity Type Cross Flow Pack Separators for Qualitative Separation

1997 ◽  
Vol 12 (02) ◽  
pp. 112-115 ◽  
Author(s):  
F.A. Kenawy ◽  
M.E. Kandil ◽  
M.A. Fouad ◽  
T.W. Aboarab
Keyword(s):  
Water Treatment ◽  
Produced Water ◽  
Cross Flow ◽  
Treatment Technology ◽  
Water Separation ◽  
Produced Water Treatment ◽  
Oil Water Separation ◽  
Oil Water ◽  
Water Treatment Technology

Cost-Efficient De-Bottlenecking of Produced Water Treatment Systems through the Application of a Single Technology, Eliminating the Need for Hydrocyclones and Degassing Drums

2021 ◽  
Author(s):  
Steinar Asdahl ◽  
Johann Jansen van Rensburg ◽  
Martin Einarson Waag ◽  
Rune Glenna Nilssen
Keyword(s):  
Water Treatment ◽  
Produced Water ◽  
Separation Efficiency ◽  
Water System ◽  
Treatment Technology ◽  
Two Stage ◽  
Water Separation ◽  
Design Capacity ◽  
New Process ◽  
Produced Water Treatment

Abstract Traditionally, produced water from production separators is handled by multiple steps and different technologies in order to meet the required quality for either discharge or reinjection of the water. The development of the latest Compact Flotation Unit (CFU) technology has unlocked the potential for savings on cost, complexity, footprint and weight for the produced water treatment system. The developed CFU technology has proven applicable through field testing as a single treatment technology for reducing Oil-in-Water (OiW) content directly from tie-in at separator and still meet stringent requirements for outlet OiW quality. Field tests were conducted with inlet OiW concentration ranging from 200-2000 ppm, achieving results in the range 2.5 to 21 ppm only with a two-stage latest generation CFU. Compared to a traditional produced water system setup consisting of de-oiling hydrocyclones and a horizontal degassing vessel, the savings in footprint and operational weight is estimated to 54 % and 53 % respectively utilizing a two-stage CFU for a system with a design capacity of 76.000 BWPD. Furthermore, the development of the latest generation CFU technology has enabled the retrofit concept, incorporating the developed CFU internals into existing gravity separation based produced water vessels, converting them to more efficient flotation vessels with increased capacity. For brownfield and debottlenecking applications, operators are challenged by increasing water cut from maturing wells, and as a result exceeding the facilities design capacity for produced water treatment. This challenge is often further reinforced by increasingly stricter environmental legislation for OiW content for discharge or re-injection. The retrofit concept will offer a highly cost-, footprint- and weight-efficient solutions to these challenges utilizing existing vessels. Benefits of the retrofit concept: Bring proven and unique performance of the technology to other produced water separation vessels helping the operators improve the separation efficiency and increase throughput while meeting discharge requirementsShort execution time compared to installation of new process equipmentLow cost compared to installation of new process equipmentUtilization of existing equipment saves valuable footprint.

scholarly journals Petrochemical wastewater and produced water: Treatment technology and resource recovery

2020 ◽  
Vol 92 (10) ◽  
pp. 1695-1700
Author(s):  
Xinchao Wei ◽  
Mohammad Kazemi ◽  
Shicheng Zhang ◽  
Frederick A. Wolfe
Keyword(s):  
Water Treatment ◽  
Produced Water ◽  
Resource Recovery ◽  
Petrochemical Wastewater ◽  
Treatment Technology ◽  
Produced Water Treatment ◽  
Water Treatment Technology

scholarly journals A NEW MODEL FOR PRODUCED WATER TREATMENT IN ELEMIR OIL FIELD

2017 ◽  
Vol 1 (16) ◽  
Author(s):  
Slavko Nesic ◽  
Vladimir Mitrović ◽  
Zvonimir Bošković ◽  
Adnan Hodžić
Keyword(s):  
Water Treatment ◽  
Produced Water ◽  
Current System ◽  
Oil Field ◽  
Southeastern Part ◽  
Water Separation ◽  
New Model ◽  
Produced Water Treatment ◽  
Oil Water Separation ◽  
Fluid Production

The oil reservoirs of the southeastern part of the Panonian basin are characterized by considerablepresence of water,i.e.waterdrive. The hydrocarbon reservoirs are mostly in the middle and finalproduction stages. The water production is especially significant in wells producing with an installedElectrical Submersible Pump (ESP). As production continues, it is a realistic expectation that the watercut increases as well.The rapid production of water has affected fluid production in a significantway.Produced water in the Elemir oilfield is gathered, treated and then injected into the porous layersthrough several wells.The current system for the preparation and treatment of produced water in theElemir oilfield has functioned with evident technical issues.The main problems are increased volumesof produced fluids and the deposition of solids (scales) in water treatment system. In thisarticle, a newmodel for produced water treatment is presented, including technical, economic and environmentalaspects. A new model fulfils volumetric requirements, improves oil/water separation and suspendedsolids removal which lead to better injection performance.

Produced Water Handling Using Downhole Oil Water Separation Study Case Onshore & Offshore Fields Abu Dhabi

2021 ◽  
Author(s):  
Abdelhak Ladmia ◽  
Dr. Younes bin Darak Al Blooshi ◽  
Abdullah Alobedli ◽  
Dragoljub Zivanov ◽  
Myrat Kuliyev ◽  
...  
Keyword(s):  
Produced Water ◽  
Operating Cost ◽  
Cost Effective ◽  
Management Tool ◽  
Water Separation ◽  
Field Development ◽  
Effective Manner ◽  
Oil Water Separation ◽  
Oil Water

Abstract The expected profiles of the water produced from the mature ADNOC fields in the coming years imply an important increase and the OPEX of the produced and injected water will increase considerably. This requires in-situ water separation and reinjection. The objective of in-situ fluid separation is to reduce the cost of handling produced water and to extend the well natural flow performance resulting in increased and accelerated production. The current practice of handling produced water is inexpensive in the short term, but it can affect the operating cost and the recovery in the long term as the expected water cut for the next 10-15 years is forecasted to incease significantly. A new water management tool called downhole separation technology was developed. It separates oil and & gas from associated water inside the wellbore to be reinjected back into the disposal wells. The Downhole Oil Water Separation (DHOWS) Technology is one of the key development strategies that can reduce considerable amounts of produced water, improve hydrocarbon recovery, and minimize field development cost by eliminating surface water treatment and handling costs. The main benefits of DHOWS include acceleration of oil offtake, reduction of production cost, lessening produced water volumes, and improved utilization of surface facilities. In effect, DHOWS technologies require specific design criteria to meet the objectives of the well. Therefore, multi--discipline input data are needed to install an effective DHOWS with a robust design that economically outperforms and boosts oil and/or gas productions. This paper describes the fundamental criteria and workflow for selecting the most suitable DHOWS design for new and sidetracked wells to deliver ADNOC production mandates in a cost-effective manner while meeting completion requirements and adhering to reservoir management guidelines.

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