Gas Lift Automation. Dr Alasdair S Brown Technical Manager EPS Americas. Automation. A Requirement for fields with many wells Intelligence needs built in to applications to permit automated diagnosis “Productisation” is important to shorten time to implementation
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Dr Alasdair S Brown
YearStep Change Example - Refining
Throughout the nineties, US refining utilisation has improved radically.
This benefit was delivered through the application of Automation and Optimization IT.
US Refining Efficiency
Objective - PDVSA identified the opportunity to make significant gains in production from mature fields in the Maracaibo area through integration of automation and optimisation technologies.
The casing pressure increasesrapidly...
5042 :: CL243-1 :: ASMS Well Rule 42 :: SEDILAG has performed an initial run on well CL 243because the casing pressure has changed. The possible reason could be:1. Multiple injection points, or2. A gas-lift valve failure, or3. Tubing-Annulus communication.SEDILAG should confirm the specific reason.A SEDILAG run will be initiated automatically.
A 75 minute timer starts to see if the new abnormal situation in the well stabilises before starting SEDILAG
7 May, 2001
The analysis of the trends and the extraction of data for the SEDILAG execution starts
A SEDILAG run starts which combines these process data values with the production history and the WellFlo well model.
As a result of the SEDILAG diagnosis, an alarm is produced.
Integrationwith Well TestOptimization
Comes from SEDILAG andconfirms the suspicions ofASMS!
The DGO application optimizes the use of gas as a fuel and between the different consumers.
Objective – short term gains of 3-7% in production, medium term – unit cost reductions of up to 35%
Field SCADA System
Interface to other applications
usersIntelligent Daily Operations