A well comprising a borehole and wellhead apparatus, and a communication box at or proximate to the wellhead apparatus, the well comprising a plurality of sensors coupled to wireless transmitters which are adapted to transmit information from the sensors to the communication box; the sensors compris
A well comprising a borehole and wellhead apparatus, and a communication box at or proximate to the wellhead apparatus, the well comprising a plurality of sensors coupled to wireless transmitters which are adapted to transmit information from the sensors to the communication box; the sensors comprising at least one pressure sensor; and the well comprising a first memory device spaced apart from the communication box, the first memory device configured to store information from the sensors, wherein the communication box comprises a receiver adapted to receive signals from the transmitters, and at least one of a transmission device and a second memory device to transmit and/or store data received from the transmitters. The communication box is typically highly shock resistant (above 50 Gs for at least 5 ms, all axes) and so provides, together with other optional features, a system to monitor a well, especially before, during or after an emergency situation.
대표청구항▼
1. A well comprising a borehole and wellhead apparatus, and a communication box at or proximate to the wellhead apparatus, the borehole comprising a plurality of sensors coupled to wireless transmitters which are adapted to transmit information from the sensors to the communication box; the sensors
1. A well comprising a borehole and wellhead apparatus, and a communication box at or proximate to the wellhead apparatus, the borehole comprising a plurality of sensors coupled to wireless transmitters which are adapted to transmit information from the sensors to the communication box; the sensors comprising at least one pressure sensor;the sensors comprising at least one temperature sensor; andthe borehole comprising a first memory device spaced apart from the communication box, the first memory device configured to store information from the sensors for at least one day such that the information is storable downhole in the borehole spaced apart from the communication box for the at least one day for retransmission of the information;wherein a plurality of the same type of sensor are provided in the borehole spaced apart from each other;wherein the communication box comprises a receiver adapted to receive signals from the transmitters, and at least one of a transmission device and a second memory device to transmit and/or store data received from the transmitters; andwherein the wireless transmitters are at least one of electromagnetic and acoustic transmitters, and the signal is at least one of an electromagnetic signal and an acoustic signal. 2. A well as claimed in claim 1, wherein the communication box has a survivability shock rating of least 50 Gs for at least 5 ms, all axes. 3. A well as claimed in claim 1, wherein the transmitters are part of a transceiver which also comprises a receiver; and wherein the receiver of the communication box is a second transceiver which also comprises a transmitter. 4. A well as claimed in claim 1, wherein the first memory device is configured to store information for at least one year. 5. A well as claimed in claim 1, wherein the communication box comprises a second memory device which is configured to store information for at least one minute. 6. A well as claimed in claim 1, wherein the transmitter is an acoustic transmitter and the signal is an acoustic signal. 7. A well as claimed in claim 1, wherein the acoustic signal is adapted to travel through at least one of elongate members and well fluid. 8. A well as claimed claim 6, wherein the acoustic communications include Frequency Shift Keying ((FSK) and/or Phase Shift Keying (PSK) modulation methods. 9. A well as claimed in claim 8, including Quadrature Phase Shift Keying (QPSK) or Quadrature Amplitude Modulation (QAM) normally incorporating Spread Spectrum Techniques. 10. A well as claimed in claim 1, wherein the communication box is within 50 m of the wellhead apparatus. 11. A well as claimed in claim 1, wherein the communication box is subsurface, that is more than 2 m under the surface. 12. A well as claimed in claim 1, wherein the communication box is situated within the borehole. 13. A well as claimed in claim 1, wherein the wellhead apparatus includes the communication box. 14. A well as claimed in claim 1, wherein at least one of the sensors comprises the first memory device. 15. A well as claimed in claim 1, wherein the transmitter is configured to transmit data in real time. 16. A well as claimed in claim 1, wherein the transmitter is configured to transmit historical data. 17. A well as claimed in claim 1, wherein the communication box includes a memory device. 18. A well as claimed in claim 1, wherein a sensor is provided above and below an obstruction. 19. A well as claimed in claim 18, wherein the obstruction is an expanded packer, or a well plug. 20. A well as claimed in claim 1, wherein there is at least one sensor in a casing annuli and at least one sensor in a production tubing. 21. A well as claimed in claim 1, wherein there is at least one sensor in a first casing annuli and at least one sensor in a second casing annuli. 22. A well as claimed in claim 1, wherein there are more than two different types of sensor. 23. A well as claimed in claim 1, wherein the sensors are incorporated directly in the equipment comprising the transmitters. 24. A well as claimed in claim 1, wherein the sensors transfer data to said wireless transmitter using cables or short-range wireless communication techniques. 25. A well as claimed in claim 1, wherein the transmitter is up to 100 m below the top of the well. 26. A well as claimed in claim 1, which is a subsea well. 27. A well as claimed in claim 1, comprising a BOP. 28. A well as claimed in claim 1, comprising a tree. 29. A well as claimed in claim 1, wherein the communication box comprises a sonar transmitter. 30. A well as claimed in claim 1, wherein at least one sensor is provided at the wellhead apparatus. 31. A method of monitoring a well as claimed in claim 1, the method comprising sending signals between a surface facility and the communication box. 32. A method as claimed in claim 31, wherein the signals are sent via wireless repeaters provided on risers. 33. A method as claimed in claim 31, wherein the communication box comprises a sonar transmitter, and the signals are sent between the surface facility or an ROV and the communication box by sonar. 34. A method as claimed in claim 31 wherein an ROV connects to the communication box and send or receives signals via a hot-stab connection therewith. 35. A method as claimed in claim 31, wherein signals from the communication box are stored at the surface facility, and onwardly transmitted by satellite communications. 36. A well as claimed in claim 1, wherein the communication box has a survivability shock rating of more than 100 Gs for at least 5 ms, all axes. 37. A well as claimed in claim 1, wherein the communication box has a survivability shock rating of more than 500 Gs for at least 5 ms, all axes. 38. A well as claimed in claim 5, wherein the second memory device is configured to store information for at least one day. 39. A well as claimed in claim 38, wherein the second memory device is configured to store information for at least one year. 40. A well as claimed in claim 1, wherein the communication box is provided in or otherwise connected to, fitted or retro-fitted to, the wellhead apparatus. 41. A well as claimed in claim 1, wherein the communication box is an emergency communication box for helping mitigate an emergency situation. 42. A well as claimed in claim 1, wherein the borehole comprises at least one of elongate members and well fluid arranged between the communication box and the plurality of sensors for the transmission of the signal up and down a string through the at least one of elongate members and well fluid. 43. A method of helping mitigate an emergency situation in a well, the well comprising a borehole and wellhead apparatus, the method comprising: providing a communication box at or proximate to the wellhead apparatus;providing a plurality of sensors in the borehole, the plurality of sensors comprising at least one pressure sensor and at least one temperature sensor;providing a plurality of the same type of sensor spaced apart from each other in the borehole;coupling the plurality of sensors to wireless transmitters;providing a first memory device in the borehole spaced apart from the communication box, the first memory device configured to store information from the sensors for at least one day such that the information is storable downhole in the borehole spaced apart from the communication box for the at least one day for retransmission of the information;wirelessly transmitting information as signals via the wireless transmitters; andproviding at least one of: a transmission device in the communication box to transmit data received from the transmitters, and a second memory device in the communication box to store data received from the transmitters;wherein the wirelessly transmitting information comprises wirelessly transmitting at least one of: an electromagnetic signal and an acoustic signal. 44. The method of claim 43, further comprising using the plurality of sensors to determine the conditions in the well during or after an emergency situation. 45. The method of claim 43, wherein the retransmission of the information comprises the retransmission of the information to the communication box; and the method further comprises receiving signals from the transmitters at a receiver comprised in the communication box.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (23)
Schultz Roger L. (Richardson TX) Holloman Ricky M. (Lewisville TX), Acoustic system and method for performing operations in a well.
MacLeod ; deceased Norman C. (late of Sunnyvale CA by Martha H. MacLeod ; legal representative ) Samdahl Roger N. (San Jose CA) Bandy Thomas R. (Katy TX), Method and apparatus for communicating signals from within an encased borehole.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.