Enhanced Oil Recovery for Norne Field (Statoil) C-Segment Using Alkaline-Surfactant-Polymer Flooding

Enhanced Oil Recovery for Norne Field (Statoil) C-Segment Using Alkaline-Surfactant-Polymer Flooding

This page is a publication and represents journal papers, conference papers and proceedings etc.

0
No votes yet

users have rated this content. We would love to have your vote as well. Log in and rate!



A great percentage of oil is observed to be left in the reservoir after the traditional primary and secondary recovery methods. This oil is described as immobile oil. Alkaline-Surfactants are chemicals used to reduce the interfacial tension between the involved fluids, while polymer is used in making the immobile oil mobile.
Content

Norne C-segment is in the decline stage and is facing considerable challenges regarding volume of oil bye-passed due to water flooding. There is need for developing cost efficient enhanced oil recovery (EOR) methods that would be suitable for Norne fluid and rock properties and therefore improve sweep efficiency significantly. Based on literature and screening criteria, alkaline-surfactant-polymer can be used as an enhancing agent to produce extra oil and reduce water-cut significantly in the C-segment.

The objective of this work is to evaluate the possibilities of using alkaline, surfactant and/or polymer to increase the oil recovery factor and prolong the production decline stage of Norne field. An initial study was conducted using heterogeneous synthetic models (with Norne C-segment fluids and rock properties) to assess the suitability of alkaline/surfactant/polymer (ASP) flooding. All the chemical cases simulated gave substantial incremental oil production and water-cut reduction.

However, history matched Norne C-segment reservoir model was used to simulate alkalinesurfactant- polymer flooding using Eclipse 100. Appropriate chemical quantity for injection was ascertained by simulating several cases with different concentration, injection length and time of injection. Different sensitivity analyses were made and simulations revealed that the most effective method was not the most profitable. Having established most profitable method which was injecting ASP slug with a concentration of 7Kg/m3, 2Kg/m3 and 0.3Kg/m3 into C-3H (injector) for 4-years in a cyclic manner, an incremental recovery factor of 2.61% was recorded and Net Present Value (NPV) was calculated to be 1660 x10^3MNOK.

Other key information

209 results
Below, you will find related content (content tagged with same topic(s) as this publication)
Content type: Ongoing activity

A benchmark for integration of reservoir engineering and geophysics

This activity facilitates the collaboration between reservoir engineers and geophysicists

0
Content type: Publication

A Derivative-Free Approach for the Estimation of Porosity and Permeability Using Time-Lapse Seismic and Production Data

This is a scientific publication written in collaboration with the IO Center.

0
Content type: Publication

A Lagrangian-Barrier Function for Adjoint State Constraints Optimization of Oil Reservoirs Water Flooding

This is a scientific publication written in collaboration with the IO Center.

0
Content type: Publication

A Robust Scheme for Spatio-Temporal Inverse Modeling of Oil Reservoirs

This is a scientific publication written in collaboration with the IO Center.

0
Content type: Publication

A Sparse Basis POD for Model Reduction of Multiphase Compressible Flow

This is a scientific publication written in collaboration with the IO Center

0
Content type: Publication

A structured approach to improved condition monitoring

A paper describing a systematic approach to select and implement appropriate condition monitoring for systems, structures and components.

0
Content type: Presentation

Acceptance criteria for dynamic risk analysis

Presentations at IO Center Work Shop Sept 2013

0
Content type: Presentation

Activities on Dynamic Optimization

TC Meeting - September 2013

0
Content type: Publication

Adaptive Multiscale–Streamline Simulation and Inversion for High-Resolution Geomodels

This is a scientific publication written in collaboration with the IO Center.

0
Content type: Presentation

Addressing Dynamic Risk in the Petroleum Industry by Means of Innovative Analysis Solutions

Presentation given at the CISAP-6 conference in Bologna (13-16 April 2014)

0

Pages