Sampling through perforation guns with flushing
A system includes a casing configured to mount within an open hole of a wellsite and a monitoring system configured to mount outside of the casing and monitor a geological formation. The monitoring system includes a perforating device outside of the casing, where the perforating device is configured to produce one or more perforations into the geological formation outside of the casing in a perforating operation of the monitoring system, where the one or more perforations are configured to enable fluid flow between the geological formation and the monitoring system. The system also includes a fluid circuit outside of the casing, where the fluid circuit is coupled to the perforating device, and the fluid circuit is configured to route a first fluid from the geological formation to a sample collecting system during a sampling operation of the monitoring system.
1 . A system, comprising:
a casing configured to mount within an open hole of a wellsite;
a sample collecting system configured to analyze one or more properties of a first fluid; and
a monitoring system configured to mount outside of the casing and monitor a geological formation, wherein the monitoring system comprises:
a perforating device outside of the casing, wherein the perforating device is configured to produce one or more perforations into the geological formation outside of the casing in a perforating operation of the monitoring system, and wherein the one or more perforations are configured to enable fluid flow between the geological formation and the monitoring system; and
a fluid circuit outside of the casing, wherein the fluid circuit comprises:
a U-tube coupled to a fluid supply:
a sampling conduit coupled to the U-tube and the perforating device;
a filter, wherein the filter is disposed along the sampling conduit; and
a flush conduit coupled to the U-tube and the sampling conduit, wherein the flush conduit comprises a check valve, wherein the fluid circuit is coupled to the perforating device, and wherein the fluid circuit is configured to route the first fluid from the geological formation to the sample collecting system during a sampling operation of the monitoring system.
2 . The system of claim 1 , wherein the fluid circuit comprises one or more sensors or gauges.
3 . The system of claim 1 , wherein the fluid circuit comprises an actuation conduit coupled to the U-tube and the perforating device, and wherein the fluid supply is configured to supply an actuation fluid to the perforating device to activate the perforating operation.
4 . The system of claim 3 , wherein the actuation conduit comprises an additional check valve.
5 . The system of claim 1 , wherein the perforating device comprises an initiation device coupled to a perforating gun, wherein the initiation device is configured to activate the perforating gun to produce the one or more perforations, and wherein the initiation device comprises a fluid actuator, an electronic actuator, a mechanical actuator, or a combination thereof.
6 . The system of claim 1 , comprising a controller coupled to the monitoring system, wherein the controller comprises a processor, a memory, and instructions stored on the memory and executable by the processor to activate the perforating device to produce the one or more perforations and operate the fluid supply to supply a second fluid to help route the first fluid from the geological formation to the sample collecting system.
7 . A system, comprising:
a monitoring system configured to mount outside of a casing within an open hole of a wellsite and monitor a geological formation, wherein the monitoring system comprises:
a perforating device outside of the casing, wherein the perforating device comprises an initiation device configured to activate a perforating gun to produce one or more perforations into the geological formation outside of the casing in a perforating operation of the monitoring system, and wherein the one or more perforations are configured to enable fluid flow between the geological formation and the monitoring system; and
a fluid circuit outside of the casing, wherein the fluid circuit comprises:
a U-tube coupled to a fluid supply;
a sampling conduit coupled to the U-tube and the perforating device;
a filter, wherein the filter is disposed along the sampling conduit; and
a flush conduit coupled to the U-tube and the sampling conduit, wherein the flush conduit comprises a check valve, and wherein the fluid circuit is configured to route a first fluid from the geological formation to one or more sensors or gauges to monitor one or more properties of the first fluid.
8 . The system of claim 7 , wherein the initiation device comprises a fluid actuator coupled to the fluid circuit.
9 . The system of claim 8 , wherein the fluid circuit comprises a controller configured to operate the fluid supply to increase a fluid pressure in the fluid circuit during the perforating operation to activate the perforating gun, and wherein the controller is configured to operate the fluid supply to decrease the fluid pressure in the fluid circuit during a sampling operation of the monitoring system.