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Title: Petroleum Development Oman Pdo() Experience In Well Testing At High Gvf And High Pressure Conditions
Author: Abdullah Al-Obaidani Salim Al-Sibani
Source: 2009 South East Asia Flow Measurement Conference
Year Published: 2009
Abstract: Continuous and accurate well testing data is one of the challenging aspects in well testing at high GVF and high pressure applications in Petroleum Development Oman. PDO has many promising fields where wells generally are at high GVFs and relatively high pressures. The need of reliable well testing data is becoming more important to realise improvements since the company is actively moving towards well & reservoir management (WRM). A metering project which was initiated in 2003 suggested installing different types of well testing equipment. After completion of this project in 2006, PDO realised improvements in well testing data and hydrocarbon reconciliation. However, fields with high GVFs achieved relatively less improvement and several attempts to improve the hydrocarbon reconciliation were carried out. A joint effort with the multiphase meter vendor to further improve measurements and hence field reconciliation has taken place in early 2008 where PDO has expressed more emphasis in achieving better reconciliation factors for particular fields. This effort has resulted in a significant improvement in hydrocarbon reconciliation and hence enabled better WRM. This paper addresses PDOs experience and measurement challenges in the joint effort in testing wells at the described conditions. It highlights different tools used and the specific improvements made. This includes using multiphase flow meters and mobile separators. In addition, this paper also highlights the methods used to back allocate hydrocarbon to the wells. Furthermore, it highlights the importance of accurate parameters to be configured in this equipment to deliver quality well testing data.

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