An important issue is to improve oil recovery from existing fields by developing and implementing new technologies that can make mature and marginal fields more profitable. In most oil fields, the draining mechanism is based on pressure support from gas and/or water. This means that after a period of production, all wells will have gas and/or water breakthrough. As a breakthrough expands along the horizontal well, production has to be limited due to excessive gas and/or water production. This means that production from the well has to be choked or stopped, even if there is oil left along the wellbore. Inflow Control Device (ICD) and the early versions of Autonomous Inflow Control Devices (AICD) have shown that oil production and recovery can be increased significantly with better inflow control along the well. However, neither ICD nor AICD is able to shut off unwanted gas and water production completely. The newly developed and patented Autonomous Inflow Control Valve (AICV®) can shut off unwanted liquids completely. This novel technology is a major step for improved oil recovery, both in new and old wells.
Autonomous and robust
AICV® is completely self-regulating, and does not require any form of control, electronics or connection to the surface. This provides the operator with significantly more efficient production and increased recovery. The AICV® technology also makes it possible to drill longer wells and achieve maximum reservoir contact from each one.
Shuts off water completely and locally
The AICV® autonomously and almost completely shuts off unwanted liquids such as gas and/or water. In the event of a gas/water breakthrough, the AICV® will immediately shut off the flow. Oil production will continue from the other inflow zones along the well, ensuring optimum oil production and recovery. This means that oil production can continue at undiminished high flow rates in the zones that are not affected by the gas breakthrough.
The AICV® can be designed for your applications, meaning your ICD strength and partly or full choking of gas, steam and/or water.
The valve is also reversible. This means that if the AICV® has closed for gas/water and detects oil again, it will autonomously open and oil production will continue in order to maximize recovery
Reduced separation, transport and handling of water/gas
In addition, the AICV® removes the risk, cost and requirement for separation, transportation and handling of unwanted liquids. This demonstration also proves that InflowControl’s new AICV® technology makes it possible to maximize well production, and far more efficiently than ever before. The AICV® minimises gas and water breakthrough problems, i.e reduce your water cut (WC) and Gas Oil Ratio (GOR).
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