Downhole gauge telemetry system and method for a multilateral well
a multi-lateral well and gauge technology, applied in the field of multi-lateral well operations, can solve the problems of cumbersome or impossible wire connection and the difficulty of running the long wires needed to make the signal transmission link between the surface and the lateral borehol
Inactive Publication Date: 2009-03-26
ZIEBEL U S
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AI Technical Summary
Benefits of technology
"The invention is about a system for transmitting data in a multilateral well. It includes a primary borehole with a wireless transceiver, a lateral borehole with a wireless transceiver, and a surface transceiver. The transceivers communicate wirelessly through a connection, allowing data to be transmitted between them. This system can help gather data from the well and send it to the surface for analysis and control."
Problems solved by technology
Making wire connections between the surface and lateral boreholes can be cumbersome or impossible.
For example, it would be difficult to run the long wires needed to make signal transmission links between the surface and each of the sensors / gauges in the lateral boreholes.
Method used
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[0010]The invention will now be described in detail with reference to a few preferred embodiments, as illustrated in the accompanying drawings. In describing the preferred embodiments, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be apparent to one skilled in the art that the invention may be practiced without some or all of these specific details. In other instances, well-known features and / or process steps have not been described in detail so as not to unnecessarily obscure the invention. In addition, like or identical reference numerals are used to identify common or similar elements.
[0011]FIG. 1 is a block diagram of a downhole gauge telemetry system 100 for a multilateral well. The telemetry system 100 includes surface transceiver (or receiver / transmitter) 102 connected to a data processing system 103, wherein the data processing system 103 retrieves data from the surface transceiver 102 and processes th...
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A downhole gauge telemetry system for a multilateral well includes a first wireless transceiver located in a primary borehole of the multilateral well, a second wireless transceiver located in a lateral borehole of the multilateral well, a wireless connection between the first wireless transceiver and the second wireless transceiver through which the first and second wireless transceivers exchange data, and a surface transceiver communicatively coupled to the first wireless transceiver.
Description
BACKGROUND OF THE INVENTION[0001]The invention relates generally to multilateral well operations. More particularly, the invention relates to a system and method for monitoring reservoir / borehole conditions in a multilateral well.[0002]Multilateral wells, also known as multi-branch wells, have lateral boreholes that tie back to a primary wellbore. Production through the primary wellbore can be significantly increased by bringing the lateral boreholes into close proximity with several target reservoirs. To maximize production, sensors / gauges can be installed in the lateral boreholes and used to monitor reservoir / borehole conditions, such as pressure, temperature, and flow rate in the tubing and annulus. The output of the sensors / gauges can be monitored in real-time and used to control inflow from the lateral boreholes such that production is optimized. To enable monitoring of reservoir / borehole conditions, powering of the sensors / gauges and communication between the sensors / gauges an...
Claims
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IPC IPC(8): E21B47/12
CPCE21B47/122E21B41/0035E21B47/13
Inventor TUBEL, PAULO S.SAUERMILCH, PETERBERGERON, CLARKCANTRELLE, ANDYKRUEGEL, SCOTT
Owner ZIEBEL U S