North Kuwait had discovered several deep reservoirs during 1960s which were not considered for development production till 2010 because of higher priority given to the major reservoirs such as Mauddud and Burgan. Zubair and Ratawi are two such new reservoirs, taken up for fast track development since last 2 years.
In order to achieve the production target for the asset, ZU/RT need to be brought to production. A complete evaluation of all geological/ Geophysical data was done for all penetration through ZU/RT. All testing results available during the exploratory wells were comprehensively gathered and evaluated. Based on the data, fast track well release, drilling & completion were initiated. The objective was to gain production as well as data to reduce the uncertainty for further development and reservoir modeling work. The initial results indicated tremendous challenges in terms of fluid regime as well as reservoir rock properties.
The production, at the beginning of the project, was zero, which has now been increased to about 20 MBOPD within a year. Integrated team work and calculated risks helped to achieve this milestone.
The paper aims to share the challenges and the lessons learnt during the production delivery from the new reservoirs in North Kuwait.
Geological Background/ Setting
Sabiriyah Zubair is a minor reservoir of clastic type, which was on low priority for development/ production since discovered druing 60s.. This is a relatively small reservoir in terms of size and potential, as compared to other major reservoirs in Sabiriyah field viz. Mauddud & Burgans. However, the accomplished intial tests at two wells (SA-00271 and SA-0278) indicate that the reservoir has mobile oil and can participate to contribute to NK overall production. Currently 7 wells are flowing to Gathering centre at total rate of about 10 MBOPD.
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