Well Integrity Data Assessment WIDA Implementation through Integrating Established Well Data Systems to Increase Safe Operability for Wells with a History of Interdependence Integrity Issues
Authors: Ali Azlan Bin , Daghmouni Dr. Hamdi , Yugay Andrey , Johan Arwansyah , Amabipi Dr. Abby , Corneliussen Dr. Kjell , Kristian Arne 
Published: November 2017

ADCO is accountable to operate a well stock with integrity, technical and operational challenges. It is the responsibility of ADCO to devise a system or methodology to operate, manage the integrity, and finding solutions for well integrity issues safely, cost-effectively and consistently.

In the last 20 years, ADCO has drilled thousands of wells to sustain production and achieve ADCO business objectives. Throughout the years, many challenges including well integrity management have proven to be detrimental to well sustainability. Disintegrated KPIs, lack of well integrity data, limited notifications, interdependent well integrity issues, unstructured data, multiple automated systems, gap in well integrity skills, lack of proper documentations are challenges to name but a few. As such, this requires continuous intervention and integration to increase safety, productivity, and cost-effectiveness by implementing quality controlled integrated work process and well integrity management system while engaging multidisciplinary data collaboration. For many years, this scale of intervention, integration and analysis was not possible or was not thought over due to the complexity, the enormous volume of data required for analysis and the high degree of collaboration with various disciplines required. The approach is the initiation of a unique project where information from various source systems pertaining to the full life cycle of a well has been integrated. Techniques have been designed and developed to capture the missing data that is required to perform the complex analysis for the project.

The methodology applied for the well integrity management system is able to sieve various technical data and identify the important and the correct well integrity parameters through a single reliable centralized system before identifying well integrity issues. This is to ensure that the critical information is correct and systematically organized in a structured manner for high quality integrity analysis. As such, ADCO has been able to locate and predict wells parameter that correlate to integrity problems through well integrity processes, real-time dashboards, structured reporting, continuous notifications and well defined work processes. Well creation process flow, built in well failure model and logic for risk ranking and well integrity identification, well specific operating limits, well downgraded situation, well integrity passport and GIS integration are some of the integral parts of well integrity identification and solution. The effectiveness and consistency of the well integrity logic and processes are implemented and continuously improved.

As a result, well integrity management in ADCO has reached an acceptable maturity level through data collaboration, multidisciplinary engagement, work processes improvement, software system integration, and continuous personnel training.

In addition, the implementation process has led to increased availability of quality data, better control of the well risk, a reduction in inactive wells due to integrity and a more sustainable well production.