Multiple activation-device launcher for a cementing head
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-033/05
E21B-033/068
출원번호
US-0121487
(2009-09-16)
등록번호
US-9163470
(2015-10-20)
국제출원번호
PCT/EP2009/006748
(2009-09-16)
§371/§102 date
20110628
(20110628)
국제공개번호
WO2010/040445
(2010-04-15)
발명자
/ 주소
Gambier, Philippe
Giem, Greg
Rondeau, Joel
Fitzgerald, Chris
출원인 / 주소
Schlumberger Technology Corporation
대리인 / 주소
Dae, Michael
인용정보
피인용 횟수 :
0인용 특허 :
69
초록▼
A multiple activation-device launching system for a cementing head comprises a launcher body comprising at least one launching chamber and a device chamber, the launching chamber sized to receive one or more activation devices therein, the launching chamber in fluid communication with a power source
A multiple activation-device launching system for a cementing head comprises a launcher body comprising at least one launching chamber and a device chamber, the launching chamber sized to receive one or more activation devices therein, the launching chamber in fluid communication with a power source for launching the activation device into the device chamber. The launching system may further comprise a pressure sensor, a pressure-relief device or a flow-measurement device, or combinations thereof.
대표청구항▼
1. A multiple activation-device launching system for a cementing head, comprising: (i) a launcher body comprising a central passage through which process fluid flows;(ii) at least four launching chambers that are sized to receive one or more activation devices therein, the launching chambers being a
1. A multiple activation-device launching system for a cementing head, comprising: (i) a launcher body comprising a central passage through which process fluid flows;(ii) at least four launching chambers that are sized to receive one or more activation devices therein, the launching chambers being arranged at an angle relative to the axis of the launcher body and in fluid communication with a power source for launching the activation device from its chamber into the main process-fluid flow, wherein the power source is a device external to the launcher body and in fluid communication with the launching chamber; and(iii) one or more pressure sensors, or one or more pressure relief devices, or a combination thereof, wherein, during launching, the sensors or devices or both are in hydraulic communication with the process fluid entering one or more of the launching chambers. 2. The system of claim 1, wherein the activation devices comprise darts, balls, bombs or canisters, or combinations thereof. 3. The system of claim 1 wherein the external power source comprises one or more members selected from the group consisting of a fluid connected directly behind the activation device, a hydraulic cylinder with a rod that forces one or more activation devices out of the launching chamber, a hydraulic piston without a rod that seals within the activation device chamber, and a bladder behind the activation device that fills from an external fluid source. 4. The system of claim 1, wherein the pressure sensors comprise one or more members selected from the group consisting of piezoresistive strain gauges, capacitive sensors, electromagnetic sensors, piezoelectric sensors and potentiometric sensors. 5. The system of claim 1, wherein the pressure-relief devices comprise one of more members selected from the group consisting of rupture disks, pressure-relief valves, fusible-plug devices and combination rupture-disk/fusible-alloy devices. 6. A method for deploying one or more activation devices into a process-fluid, comprising: providing a multiple activation-device launching system for a cementing head, the launching system comprising:(i) a launcher body that comprises a central passage through which a process fluid flows;(ii) a primary valve and at least four launching chambers equipped with a secondary valve and sized to receive the one or more activation devices therein, the launching chambers in fluid communication with a power source for launching one or more activation devices into a main process-fluid flow, wherein the power source is a device external to the launcher body and in fluid communication with the launching chamber; and(iii) one or more pressure sensors, or one or more pressure relief devices, or a combination thereof, wherein, during launching, the sensors or devices or both are in hydraulic communication with the process fluid entering one or more of the launching chambers. 7. The method of claim 6, further comprising performing one or both of the following operations during the launch of one or more activation device, from a launching chamber: monitoring the fluid pressure inside the launching chamber during the launch of one or more activation devices with the one or more pressure sensors, or the one or more pressure relief devices, or a combination thereof. 8. The method of claim 7, wherein the pressure sensors are selected from the group consisting of piezoresistive strain gauges, capacitive sensors, electromagnetic sensors, piezoelectric sensors and potentiometric sensors. 9. The method of claim 6, wherein the activation-devices comprise darts, balls, bombs or canisters or combinations thereof. 10. A method for deploying one or more activation devices into a process-fluid stream, comprising: providing a multiple activation-device launching system for a cementing head, the launching system comprising:(i) a launcher body that comprises a central passage through which a process fluid flows;(ii) a primary valve and at least four launching chambers, the launching chambers equipped with a secondary valve and sized to receive one or more activation devices therein, the launching chambers in fluid communication with a power source for launching the one or more activation devices into a main process-fluid flow, the power source being external and independent of the process fluid; and(iii) one or more pressure sensors, or one or more pressure relief devices, or a combination thereof, wherein, during launching, the sensors or devices or both are in hydraulic communication with the process fluid entering one or more of the launching chambers. 11. The method of claim 10, wherein the external power source comprises one or more members selected from the group consisting of a fluid connected directly behind the activation device, a hydraulic cylinder with a rod that forces one or more activation devices out of the launching chamber, a hydraulic piston without a rod that seals within the activation device chamber, and a bladder behind the activation device that fills from an external fluid source. 12. The method of claim 10, further comprising monitoring the fluid pressure inside the launching chamber during the launch of one or more activation devices with the one or more pressure sensors, or the one or more pressure relief devices, or a combination thereof. 13. The method of claim 12, wherein the pressure sensors are selected from the group consisting of piezoresistive strain gauges, capacitive sensors, electromagnetic sensors, piezoelectric sensors and potentiometric sensors. 14. The method of claim 12, wherein the pressure-relief devices are employed to provide additional fluid-pressure information, the pressure-relief devices comprising one of more members of the group consisting of rupture disks, pressure-relief valves, fusible-plug devices and combination rupture-disk/fusible-alloy devices. 15. The method of claim 10, wherein the activation-devices comprise darts, balls, bombs or canisters or combinations thereof. 16. The method of claim 10, wherein the process fluid comprises one or more fluids selected from the group consisting of drilling fluids, cement slurries, spacer fluids, chemical washes, acidizing fluids, gravel-packing fluids and scale-removal fluids.
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