Method and arrangement for operating an extraction in a borehole
AssigneeRAG Rohol-Aufsuchungs AG
InventorChristian Burgstaller
Life of this patent
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Abstract
A method and an arrangement for operating a process for extracting a fluid in a borehole are optimized. In the case of deep wells, the location of an interface depth in the borehole is detected. A pressure measurement of the pressure at the head of the borehole is made. The pressure in the liquid in the borehole below the interface depth is determined from the measured pressure at the head of the borehole and the detected location of the interface depth. The determination of this pressure is used for regulating the performance of an extracting device for the liquid that is to be extracted.
Claims20
Method for operating a process for the extraction of a fluid in a borehole in which the location of an interface depth in the borehole is detected in the case of deep wells,
- characterized
- in that a pressure measurement of the pressure at the head of the borehole is made,
- in that the pressure in the liquid below the interface depth in the borehole is determined from the measured pressure at the head of the borehole and the detected location of the interface depth and
- in that the determination of this pressure is utilised for regulating the performance of an extracting device for the liquid that is to be extracted.
A system for the extraction of a fluid in a bore hole in which the location of an interface depth in the borehole is detected in the case of deep wells, and comprising:
- a pressure measuring device that is provided above the earth's surface for the purposes of measuring the pressure at the head of the borehole,
- a device is provided for detecting the location of the interface depth,
- an evaluating device to which the values of the pressure measuring device and the device for detecting the location of the interface depth are supplied, and
- an extracting device for extracting the fluid,
- wherein the evaluating device supplies values determined from input data to a control system of the extracting device.
Dependencies are inferred from the claim text.