Attic Oil Recovery

This paper presents a gulf of mexico field case study describing the use of horizontal wells to improve oil recovery in thin attic oil strong waterdrive reservoirs.

Attic oil recovery.

Society of petroleum engineers. Operations to recover the attic oil will be conducted offshore using remote operated vehicle rov technology. Brimmond group have recently completed the design manufacture and testing of an atex zone 1 category 2 attic oil recovery system for a global operator s decommissioning project. Gulf of mexico horizontal well improves attic oil recovery in active waterdrive reservoir.

There is a small portion of oil within the top dome of the brent delta cells. In a conventional attic oil reservoir recovery program wherein gas is injected through a well into an attic reservoir the gas then migrating updip and displacing oil downward to the producing interval in the well wherefrom the oil is then produced the improvement is added wherein at the completion of the gas injection step a water excluding agent is injected into the reservoir in the immediate vicinity of the well bore which prevents the formation water. The beds are usually dipping at a high angle. The oil cannot be recovered with the internal process piping due to the design of the cell outlet piping and the fact that oil is buoyant on water.

The three skid system consisted of a duplex filtration skid with differential pressure gauge a pneumatically powered pump skid and a metering skid to which a multi phase flow meter will be fitted. Newer research on residual oil zones has shown enough promise that researchers claim it could unlock 800 billion even a trillion new barrels to recovery just in the permian basin.