Effect of wells location on underground natural gas storage in UM EL-Radhuma formation / Ratawie field
Underground gas storage is a good technique to face; increasing demand for natural gas during cold seasons, future expected high demand and saving the non-invested associated gas from loss. Aquifer underground storage is a one of the important ways of underground gas storage.
UM EL-Radhuma formation in Ratawie field, which is one of the largest oil fields in the south of Iraq, has been examined for underground storage purpose during this study.
Geological and dynamic model for the two mentioned formation have been built by using petrel RE and ECLIPSE softwares. UM EL-Radhuma formation is consist of three reservoirs units of dolomite beds and the purpose of this study is to investigate the feasibility of underground storage in upper reservoir unit that overlaid by impermeable bed of RUS formation which is RUS 2 unit.
The effect of injection wells location on the injection performance was studied during this study.
The result showed that upper part of UM EL-Radhuma formation is suitable for underground gas storage. This work showed that there is a high effect of injection wells location on cumulative injection and injection rate. At surface condition, the cumulative gas injected after 10 years of injection was about 228.1 MMMSCF.