Oil and water treatment techniques


Operators face a number of issues when designing and operating surface facilities for gathering and processing of produced oil and formation water and also when treating oil to stock tank conditions due to physical and chemical properties of produced fluids, different field development stages, recovery mechanisms, lifting methods, and potential hazardous factors (presence of FeS, H2S, combined processing of commingled oil and the like). Successful solutions to such problems call for an integrated approach tailored to specific needs of each customer
 

Ufa Scientific and Technical Center offers such integrated approach with overall support from the beginning to the end including the following stages (turn-key basis):
 
  • Operational Analysis of Oil Gathering and Transportation System
Operational analysis of gathering and transportation system for produced oil, gas, condensate and water allows identification of factors impacting oil and formation water treatment with further recommendations developed to overcome identified problems and bottlenecks
 
  • Operational Analysis of Preliminary Water Discharge Units (Free Water Knockout)
Integrated inspection of systems for preliminary water discharge including modeling of emulsion breakdown processes with selection of optimum operational modes and identification of the best and most effective demulsifiers allows development of engineering recommendations aimed at cutting OPEX and CAPEX. Design (author) field supervision and audit of recommended practices guarantee the declared results
 
  • Operational Analysis of Oil Processing Facilities
Oil processing to stock tank conditions is governed by GOST requirements such as residual water content, salt content, mechanical impurities, saturated vapor pressure. Following these requirements the issues related to optimization of oil processing facilities need to be handled in consideration of interplay and mutual interdependence of each stage in the whole process at large
 
  • Operational Analysis of Water Treatment Facilities
With gradually increasing percentage of brownfields at the late stage of development which is typically characterized by high water cut of the produced oil operator companies frequently face challenges related to handling large volumes of produced water. A wide range of technologies for water control currently marketed by Russian as well as foreign companies requires detailed analysis to evaluate the feasibility of their application in each particular case. Integrated research and studies aimed at identification of production problems related to formation water treatment ensure significant benefits and guarantee strict compliance to industry standards (OST 39-225-88)
 
  • Engineering, Design (Author) Field Supervision and Audit
Recommendations and optimization solutions based on the results of the integrated inspection of all functional elements of the system require efficient implementation at high-quality levels of professionalism which can be guaranteed by our specialists within the scope requested by the Customer
 

Ufa Scientific and Technical Center delivers equipment for formation water treatment in compliance with OST 39-225-88 and provides services for installation support and supervision with follow-up commissioning and process stabilization
Coalescing elements are employed for water cleaning which use oil-repellent materials and a variable profile for effective consolidation of oil droplets and precipitation of solids and impurities without any resistance to the movement of the main flow

Functional principle
  • As the liquid flows through the corrugated plates it segregates into layers thus intensifying the separation process
  • The direction of the liquid flow changes many times as it goes through the plates forming zones of effective coalescence and discharge of consolidated oil droplets with simultaneous precipitation of solids and impurities
  • Oil-repellent materials used for manufacturing coalescing elements secure the self-purification effect and thus longer lifespan (higher endurance)
  • The quality of operation is ensured by high level of process automation
 

 


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