Tuesday, 29 September
Session I: Techniques and Tools part 1: Rock
Session Managers: Ra’ed Kawar, Andres Mantilla
This session will focus on recent advances in rock physics
understanding and modeling techniques. Rock physics models
are at the core of 4D interpretation and need to be capable to
consistently match both time-lapse seismic and production
data. As 4D technology gets progressively pushed to the limit,
interpreters face increasingly difficult challenges in certain areas, like compaction-related deformation, velocity changes, and permeability reduction upon depletion, among others. Presentations will address some of these challenges and showcase approaches to deal with them.
Session II: Techniques and Tools Part 2:
Session Managers: Partha Routh; Giles Watts; Michael Helgerud
The goal of this session is to focus on the impact of seismic acquisition and processing on 4D responses. Some of the tentative topics that are relevant to this session are:
- Quantifiable measures of repeatablility for seismic data: What is the current status and what's missing?
- What are the new developments in acquisition technology that provide "high" quality 4D data?
- Processing OBC and streamer data 4D repsonse: Where we are and what are the next steps?
- Discussion on current workflow on 4D processing: Can we mitigate some of the repeatability requirements by novel problem formulations? Are there ways to propagate uncertainty in the processing flow?
- 4D with multi-component data: What is the current practice and what are the challenges?
- Geomechanical consideration in 4D processing workflow.
Session III: Case Studies
Session Managers: Ra’ed Kawar; Michael Helgerud; Xuri Huang
This session will focus on case studies of 4D around the world. The case studies will cover experiences on 4D acquisition and rock physics. Through the case demonstration, you will learn how to acquire good 4D data and to apply rock models. Through discussions, you will share your experiences and learn from others’ lessons. The tentative topics for this session will include:
- Successful cases: rock physics experiences
- Successful cases: acquisition
- Experiences in data processing
Wednesday, 30 September
Session IV: Techniques and Tools part 3:Seismic and Production Management
Session Managers: Conny Gilbert; Andres Mantilla; Karl Stephen
This session will cover techniques to assess well production profiles and production allocation from time-lapse seismic. With offshore field developments progressively moving to deeper water depths, access to subsea, commingled completions with conventional logging surveillance tools (like spinner and pulsed-neutron logs) will get increasingly difficult and expensive. Time-lapse seismic monitoring can in certain instances help reduce uncertainties in production allocation. Presentations will address the techniques that can be used for that, the required integration with production data to understand and validate seismic signatures, and the challenges and limitations of those techniques given the vertical resolution of surface seismic methods, among other considerations.
Session V: Techniques and Tools Part 4:
Integration and Work Flow
Session Managers: Karl Stephen; Scarlet Castro; Marcus Marsh; Jorge Landa
The focus of this session will be the ways and means of combining seismic, geologic and engineering data to improve reservoir understanding and to reduce the uncertainty in dynamic performance prediction. Topics such as the problems of scale differences, seismic modeling and integration with reservoir flow simulation will be introduced by means of a few targeted talks. A short discussion will follow these talks, but the main discussion will be reserved until after the tools and techniques have been illustrated by the Session 6 Case Studies that follow.
Session VI: Case Studies
Session Managers: Scarlet Castro; Marcus Marsh; Jorge Landa
The selected case studies contained in this session will aim to illustrate some of the recent problems and successes of seismic – engineering integration. They will provide some 'real world' examples of the issues that will be raised in the previous session.
The subject will then be opened up to round-table discussion of the and the previous session led by the session managers.
Discussion topics are likely to focus on such questions as:
- What are the deficiencies in our rock properties understanding?
- What level of integration do I need?
- Which seismic attributes should I use and how can I best compare them with simulation?
- How can consistency between seismic, geologic and engineering data best be verified?
- Are the tools we need in the marketplace?
- Do I upscale or downscale?
- Should I be working in time or depth?
Thursday, 1 October
Session VII: Value of Information
Session Managers: Conny Gilbert; Giles Watts
- What is the real value of 4D data?
- How do I prioritise my 4D spend across the most valuable fields?
- What is the additional value of better quality data or better calibrated data?
- How often should I acquire surveys to maximise value?
- Would it be better to install a permanent array over a conventional towed streamer repeat?
- How much value does 4D data benefit reservoir management compared to well placement?
These are some of the key economic questions faced by geoscientists and managers involved with valuing 4D for reservoir development. This session will include a number of presentations and a lively discussion on the broad topic of 4D value. Given this capex constrained world, we would all like to know how to maximise the value of our expenditure and focus on the areas and technologies that will bring in the most profit. The session will attempt to take a harsh but fair look at these economic questions and help to provide some guidelines and answers through case studies. This session should appeal to geoscientists and managers involved in valuing 4D data and help us all to optimise our tools and technologies to tackle some of the key questions of reservoir surveillance and management.
Session VIII: Wrap Up Summary
Session Managers: Ra’ed Kawar; Marcus Marsh