Extending the Life of Mature Field by Light Workover Cementing Technique
Farid Hadiaman, Nilo Bianchi Neto · SPE Asia Pacific Oil and Gas Conference and Exhibition · 2011
Abstract Handil field is a giant mature oil field in Indonesia. It’s been producing since 1975, being the current recovery factor for oil 49% and 57% for gas. Cumulatively, the total oil produced is around 855 MMstb and gas around 1.68 Tcf. Today, oil is being produced at 20,000 bopd, gas at 75 mmscfd and water at 130,000 bwpd. Enhanced oil recovery projects, infill wells and light workover of existing wells are key elements to maintain field production. This paper describes an innovative light workover intervention, called Annular Squeeze Cement that helps keeping Handil field production performance at its best level. It covers the field study analysis that led to this the technique, some precautions and current challenges concerning the cementing operation as part of light workover activity. It also share lessons learnt from the field execution and evaluation. A case study is also presented for a full understanding how this cementing placement technique contributes to the field performance. This technique was successfully implemented and acts also as one of the important element to extend the life of a giant mature field where economic and success ratio becoming a paramount parameter.