WO2013022646A4 - Systems and methods for downhole communications using power cycling - Google Patents
Systems and methods for downhole communications using power cycling Download PDFInfo
- Publication number
- WO2013022646A4 WO2013022646A4 PCT/US2012/048929 US2012048929W WO2013022646A4 WO 2013022646 A4 WO2013022646 A4 WO 2013022646A4 US 2012048929 W US2012048929 W US 2012048929W WO 2013022646 A4 WO2013022646 A4 WO 2013022646A4
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- downhole tool
- power
- operational state
- downhole
- operational
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract 12
- 230000001351 cycling effect Effects 0.000 title claims abstract 3
- 238000012986 modification Methods 0.000 claims 11
- 230000004048 modification Effects 0.000 claims 11
- 230000006870 function Effects 0.000 claims 10
- 230000004044 response Effects 0.000 claims 5
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
Abstract
Systems and methods for using power cycle events to cause a downhole tool to change its operational state and/or transmit a data stream to the downhole tool. In one embodiment, a tool such as a gauge for an ESP is positioned downhole in a well and is configured to receive power from a control unit at the surface of the well. The control unit power cycles the downhole tool to communicate a need to modify the operational state of the tool. The tool may include a non-volatile memory to store an indicator of the tool's current operational state. When the tool is power cycled, the operational state is modified and the indicator is updated. The power cycling may cause the tool to increment through available operational states, or the timing of the power cycles may convey parameters or other operating information to the downhole tool.
Claims
AMENDED CLAIMS received by the International Bureau on 01 April 2013 (01.04.2013)
. A system comprising:
control equipment positioned at the surface of a well;
a downhole tool positioned within the wellbore of the well; and
a power cable coupled between the control equipment and the downhole tool;
wherein the downhole tool is configured to receive power through the power cable;
wherein the control equipment is configured to control the delivery of power through the power cable to the downhole tool and to thereby selectively power cycle the downhole tool; and wherein the downhole tool is configured to measure one or more timing parameters of successive power cycle events, identify one or more modifications of the operation of the downhole tool corresponding to the measured timing parameters, and implement the one or more modifications in the operation of the downhole tool in response to being power cycled.
2. An apparatus comprising:
a downhole tool configured to be positioned within the wellbore of a well;
wherein the downhole tool is configured to measure one or more timing parameters of successive power cycle events, identify one or more modifications of the operation of the downhole tool corresponding to the measured timing parameters, and implement the one or more modifications in the operation of the downhole tool in response to power cycle events.
3. The apparatus of claim 2, wherein the downhole tool includes a non-volatile memory, wherein the downhole tool is configured to store at least one operational state of the downhole tool, wherein the downhole tool is configured to modify the at least one operational state in response to the power cycle events.
4. The apparatus of claim 3, wherein the non-volatile memory stores a plurality of operational states, wherein modifying the at least one operational state comprises operating in a first one of the plurality of operational states and then operating in a different one of the plurality of operational states.
5. The apparatus of claim 4, wherein the downhole tool is configured to increment between the operational states in response to the power cycle events, wherein the downhole tool enters a new operational state that is selected based at least in part on a previous operational state.
6. The apparatus of claim 4, wherein a first function performed in the first one of the plurality of operational states is different from a second function performed in the different one of the plurality of operational states.
7. The apparatus of claim 4, wherein a first function is performed in both the first and different ones of the plurality of operational states, wherein the downhole tool operates using a first set of operating parameters in the first operational state and a different set of operating parameters in the different one of the plurality of operational states.
8. The apparatus of claim [[8]], wherein the one or more modifications comprise a state change that is selected based upon the measured timing parameters.
9. The apparatus of claim [[8]], wherein the one or more modifications comprise changing one or more operating parameters of the downhole tool based upon the measured timing parameters.
10. The apparatus of claim 10, wherein the downhole tool is configured to selectively enter a state in which a number and one or more power-on durations of subsequent power cycles are measured and interpreted as compressed data values, wherein the compressed data values are stored in a memory of the downhole tool.
11. The apparatus of claim 2, wherein the downhole tool comprises a downhole gauge which is configured to sense one or more conditions downhole and to transmit data
corresponding to the downhole conditions to equipment positioned at the surface of the well.
12. A method implemented in a downhole tool, the method comprising:
25
powering up a downhole tool and thereby causing the downhole tool to operate in a first operational state of the downhole tool; power cycling the downhole tool at least one time;
measuring one or more timing parameters of successive power cycle events; identifying one or more modifications of the operation of the downhole tool corresponding to the measured timing parameters; and implementing the one or more identified modifications in the operation of the downhole tool and thereby causing the downhole tool to operate in a second operational state which is different from the first operational state.
13. The method of claim 13, wherein the downhole tool incorporates a non-volatile memory that stores a plurality of operational states including the first and second operational states^ wherein identifying the one or more modifications corresponding to the measured timing parameters comprises reading the second operational state from the non-volatile memory. 4. The method of claim 1 , further comprising the downhole tool incrementing between the plurality of operational states in response to detecting power cycle events, wherein incrementing between the plurality of operational states comprises entering a new operational state that is selected based at least in part on a previous operational state.
15. The method of claim 14, wherein in the first operational state, the downhole tool performs a first function, and in the second operational state, the downhole tool performs a second function which is different from the first function.
16. The method of claim 14, wherein in both the first and second operational states, the downhole tool performs a first function, wherein in the first operational state, the downhole tool performs the first function using a first set of operating parameters, and in the second operational state, the downhole tool performs the first function using a second set of operating parameters which is different from the first set of operating parameters.
17. The method of claim 18, wherein the one or more modifications comprise changing the function of the downhole tool.
26
18. The method of claim 18, wherein the one or more modifications comprise changing one or more operating parameters of the downhole tool.
19. The method of claim 20, further comprising measuring a number and one or more power-on durations of subsequent power cycles ^interpreting the number and power-on durations of the subsequent power cycles as compressed data values, and storing the compressed data values in a memory of the downhole tool.
20. The method of claim 13, wherein the downhole tool comprises a downhole gauge, and wherein operate in at least one of the first and second operational states comprises sensing one or more conditions downhole and transmitting data corresponding to the downhole conditions to equipment positioned at the surface of a well.
27
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/207,331 | 2011-08-10 | ||
| US13/207,331 US20130037260A1 (en) | 2011-08-10 | 2011-08-10 | Systems and Methods for Downhole Communications Using Power Cycling |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO2013022646A2 WO2013022646A2 (en) | 2013-02-14 |
| WO2013022646A3 WO2013022646A3 (en) | 2013-04-25 |
| WO2013022646A4 true WO2013022646A4 (en) | 2013-06-06 |
Family
ID=47669156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2012/048929 WO2013022646A2 (en) | 2011-08-10 | 2012-07-31 | Systems and methods for downhole communications using power cycling |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20130037260A1 (en) |
| WO (1) | WO2013022646A2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015142459A1 (en) * | 2014-03-17 | 2015-09-24 | Conocophillips Company | Vapor blow through avoidance in oil production |
| CA2944635A1 (en) | 2014-04-03 | 2015-10-08 | Schlumberger Canada Limited | State estimation and run life prediction for pumping system |
| US11169032B2 (en) * | 2017-04-07 | 2021-11-09 | Sercel | Gauge with adaptive calibration and method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6945330B2 (en) * | 2002-08-05 | 2005-09-20 | Weatherford/Lamb, Inc. | Slickline power control interface |
| US6886631B2 (en) * | 2002-08-05 | 2005-05-03 | Weatherford/Lamb, Inc. | Inflation tool with real-time temperature and pressure probes |
| EP1894075A4 (en) * | 2005-06-06 | 2008-06-25 | Color Kinetics Inc | Methods and apparatus for implementing power cycle control of lighting devices based on network protocols |
| US8100196B2 (en) * | 2005-06-07 | 2012-01-24 | Baker Hughes Incorporated | Method and apparatus for collecting drill bit performance data |
| CA2544457C (en) * | 2006-04-21 | 2009-07-07 | Mostar Directional Technologies Inc. | System and method for downhole telemetry |
| US7878242B2 (en) * | 2008-06-04 | 2011-02-01 | Weatherford/Lamb, Inc. | Interface for deploying wireline tools with non-electric string |
-
2011
- 2011-08-10 US US13/207,331 patent/US20130037260A1/en not_active Abandoned
-
2012
- 2012-07-31 WO PCT/US2012/048929 patent/WO2013022646A2/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013022646A3 (en) | 2013-04-25 |
| US20130037260A1 (en) | 2013-02-14 |
| WO2013022646A2 (en) | 2013-02-14 |
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