Schlumberger & CNOOC Install TAML in South Java Sea Well
The two-leg multilateral well was drilled and completed from the NE Intan "A" platform in approximately 75 feet of water. The NE Intan A-24 well is the first ever TAML Level 6 multilateral well drilled in Indonesia and the world's first intelligent completion in a multilateral Level 6 well.
"The seamless integration of all products, services and expertise required to engineer, procure and deploy such a complex completion was a key factor in the award of the work to Schlumberger," said Doug Park, Technical Exploitation Manager, CNOOC.
Schlumberger used its state-of-the-art RapidSeal(a) multilateral system to successfully execute the project. Implementation of the intelligent completion included use of a Schlumberger (Reda) electrical submersible pump to optimize oil flow from the wellbore, two downhole flow control valves to minimize water influx and selectively control the flow from either leg, downhole well sensors that provide real-time temperature and pressure readings from both legs of the well, as well as a multiphase flow meter at surface to monitor well performance.
"The Schlumberger RapidSeal system was the ideal solution to CNOOC's platform development plans," said Wayne Mitchell, Engineering Consultant, CNOOC. "The system's versatility and reliability enabled us to place a high-tech completion, in which we had confidence, in the ground."
CNOOC's implementation of multilateral technology also has enabled the company to optimize the use of a limited number of well slots on its existing platforms, in addition to the benefits of improved production, oil recovery and field economics.
"This project is a significant milestone in the fast developing area of multilateral and intelligent completion technology," said Carlos Calad, General Manager, Schlumberger Oilfield Services, Indonesia. "We are pleased to have worked closely with CNOOC in achieving this breakthrough."
The TAML Level 6 is the highest rating given in the TAML multilateral rating system. A Level 6 junction provides both pressure and mechanical integrity to the well and allows selective access to either branch of the multilateral.
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