Presentation on theme: "PRODML WG 2007 Smart well zonal allocation. PRODML WG 2007 The Problem To run smart wells at its optimum level it must be possible to determine the zonal."— Presentation transcript:
PRODML WG 2007 The Problem To run smart wells at its optimum level it must be possible to determine the zonal reservoir pressure at any time and compare those with the theoretical expected pressure calculated from your well and network models. A comparison of the theoretical value with the actual calculated value is a key performance indicator if the well/reservoir behaved as expected. If not the system needs to be recalibrated.
PRODML WG 2007 The Team IP21 by Aspentech is the data historian EnergyComponents by TietoEnator is the production database Prosper by Petroleum Experts is a Well modelling application DECIDE! By Schlumberger is the orchestrator of automated workflows and data consolidation Avocet Production Surveillance by Schlumberger is the visualization tool Avocet - Integrated Asset Modeller (IAM) by Schlumberger is the optimizer and forecaster
PRODML WG 2007 The Workflow The integrated asset model will consume historical production and injection data to calculate production and injections targets (forecast). Those targets will be used to in the consolidator to compare the targets to the actually achieved values The measured temperature and pressure at each zone (downhole sensor data available via data historian) will be used to calculate zonal and total rates and to calculate the reservoir pressure per zone The reservoir pressure and rates can be used in an advanced process controller to calculate the optimum choke setting on how to operate the well within the targets and the constraints.
PRODML WG 2007 IAM PETEX Prosper/GAP TE EnergyComponents Aspentech IP21 1 1 Set up IAM model 4 Trigger time base every X minutes models 8 8 Determine well type 9 9 Simulate well performance 10 Calculate reservoir pressure per zone 2a2a 2b2b 12 Alarm if targets or constrains are not met 14 b 14 a 14 Trigger an update of the IAM model 5 Poll Data Historian 5a5a 5b5b 2 Historical P&I data are collected 6b6b 6a6a 12 a 12 b 3 Set P&I Targets 3b3b 3a3a Decide! APS 6 Poll well information 7a 7b 7 Pressure per zone, calculate zonal & total rates 11 Calculates choke positions 13 Do the cause analysis 13 Advanced Process Control 11 10 11 b 11 a The interactions 4