Abstract

For the sustainable development of hydrocarbon resources, the main produced water management focus is conformance control. Effective water shut-off to achieve conformance control by chemical and/or mechanical techniques requires proper surveillance and candidate well selection tools. Two different evaluation methods for treatments with self-selective systems are presented. These include a quick screening tool based on analytical equations (spreadsheet) and nodal analysis for the outflow and a reservoir-modelling tool with a user-friendly interface. Real case studies are used to demonstrate the applicability of these methods

Introduction

For the sustainable development of hydrocarbon resources, the main produced water management focus is conformance control. The use of commercially available and novel technologies for identifying the water location, tracking its movement in the reservoir and controlling its production in the well has been pursued by multi-disciplinary teams using an integrated approach in well and reservoir management. Implementation of technologies and tools for:

  1. Imaging, measurement and simulation of the water movement in the reservoir, producers and injectors using static and dynamic information

  2. Reduction of water volumes produced to surface using chemical and/or mechanical techniques, and

  3. Reduction in the overall workover and treatment cost has been contributing towards the lifecycle design, operation and sustained oil production of mature and newly developed fields.

Water production from oil and gas wells is an increasing problem in the EP world. Produced water is on average 3 times the oil production and can be up to 12 times in mature fields. Several solutions, both chemical and mechanical, are available to reduce or stop the inflow of water into the well bore as well as properly inject water in the appropriate zone. All these solutions using even new technologies, have their own application window. This makes it very important to determine the specific application conditions on a well basis, to arrive at the optimal solution.

Keywords:
iptc 10256, reservoir conditions, implementation, oil production, technology conference, evaluation tool, field development, reduction factor, reservoir simulation, reservoir surveillance
Subjects:
Well & Reservoir Surveillance and Monitoring, Reservoir Fluid Dynamics, Improved and Enhanced Recovery, Reservoir Simulation, Flow in porous media
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2005. International Petroleum Technology Conference
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