CA2556937A1 - Methods for measuring a formation supercharge pressure - Google Patents
Methods for measuring a formation supercharge pressure Download PDFInfo
- Publication number
- CA2556937A1 CA2556937A1 CA002556937A CA2556937A CA2556937A1 CA 2556937 A1 CA2556937 A1 CA 2556937A1 CA 002556937 A CA002556937 A CA 002556937A CA 2556937 A CA2556937 A CA 2556937A CA 2556937 A1 CA2556937 A1 CA 2556937A1
- Authority
- CA
- Canada
- Prior art keywords
- formation
- pressure
- borehole
- supercharge
- determining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
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- 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
- E21B47/06—Measuring temperature or pressure
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
- E21B49/088—Well testing, e.g. testing for reservoir productivity or formation parameters combined with sampling
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/10—Obtaining fluid samples or testing fluids, in boreholes or wells using side-wall fluid samplers or testers
Abstract
A method of determining the supercharge pressure in a formation intersected by a borehole having a wall, the method comprising disposing a formation pressure test tool into the borehole having a probe for isolating a portion of the borehole. The method further comprises extending the probe into sealing contact with the borehole wall. The method further comprises performing at least one drawdown test with the formation pressure test tool. The method further comprises modeling the supercharge pressure of the formation using the dynamic properties of the mudcake. The method further comprises determining the supercharge pressure of the formation using the supercharge pressure model. The formation pressure test tool may be conveyed into the borehole using wireline technology or on a drill string. Using the supercharge pressure, the drawdown test may be optimized, the characteristics of the drilling fluid altered, or the measurements of other sensors adjusted.
Claims (26)
1. A method of determining the supercharge pressure in a formation intersected by a borehole having a wall, the method comprising:
disposing a formation pressure test tool into the borehole, said formation pressure test tool having a probe for isolating a portion of the borehole;
extending said probe into sealing contact with the borehole wall;
performing at least one drawdown test with said formation pressure test tool by drawing formation fluid into a drawdown chamber of said formation pressure test tool and measuring fluid pressure in said drawdown chamber;
modeling the supercharge pressure of the formation using the dynamic properties of a mudcake on the borehole wall; and determining the supercharge pressure of the formation using said supercharge pressure model.
disposing a formation pressure test tool into the borehole, said formation pressure test tool having a probe for isolating a portion of the borehole;
extending said probe into sealing contact with the borehole wall;
performing at least one drawdown test with said formation pressure test tool by drawing formation fluid into a drawdown chamber of said formation pressure test tool and measuring fluid pressure in said drawdown chamber;
modeling the supercharge pressure of the formation using the dynamic properties of a mudcake on the borehole wall; and determining the supercharge pressure of the formation using said supercharge pressure model.
2. The method of claim 1 further comprising determining the pore pressure of the formation using said supercharge pressure.
3. The method of claim 1 further comprising determining formation and mudcake properties.
4. The method of claim 1 further comprising disposing said formation pressure test tool into the borehole on a drill string.
5. The method of claim 4 further comprising modeling the supercharge pressure of the formation using pressure transient effects caused by movement of the drill string.
6. The method of claim 4 further comprising modeling the supercharge pressure of the formation using pressure transient effects caused by pressure pulses in drilling fluid in the borehole.
7. The method of claim 1 further comprising determining the supercharge pressure using a processor.
8. The method of claim 1 further comprising performing at least one leak-off test with said formation pressure test tool.
9. The method of claim 1 further comprising determining the supercharge pressure while drilling fluid is flowing in the borehole.
10. The method of claim 1 wherein extending said probe into sealing contact with the borehole wall further comprises forming seal with the borehole wall through the mudcake.
11. A method of determining the supercharge pressure in a formation intersected by a borehole having a wall, the method comprising:
disposing a formation pressure test tool into the borehole, said formation pressure test tool having a probe for isolating a portion of the borehole;
extending said probe into sealing contact with the borehole wall;
performing at least one drawdown test with said formation pressure test tool by drawing formation fluid into a drawdown chamber of said formation pressure test tool and measuring fluid pressure in said drawdown chamber;
modeling the supercharge pressure of the formation using the dynamic properties of a mudcake on the borehole wall;
determining the supercharge pressure of the formation using said supercharge pressure model; and repeating performing drawdown tests and determining the supercharge pressure over a period of time after the borehole intersects the formation.
disposing a formation pressure test tool into the borehole, said formation pressure test tool having a probe for isolating a portion of the borehole;
extending said probe into sealing contact with the borehole wall;
performing at least one drawdown test with said formation pressure test tool by drawing formation fluid into a drawdown chamber of said formation pressure test tool and measuring fluid pressure in said drawdown chamber;
modeling the supercharge pressure of the formation using the dynamic properties of a mudcake on the borehole wall;
determining the supercharge pressure of the formation using said supercharge pressure model; and repeating performing drawdown tests and determining the supercharge pressure over a period of time after the borehole intersects the formation.
12. The method of claim 11 further comprising determining when to perform a formation pressure test to minimize the effect of supercharge pressure on the formation.
13. The method of claim 11 further comprising repeating determining the supercharge pressure over a period of time at the same location.
14. The method of claim 11 further comprising repeating determining the supercharge pressure over a period of time at different locations.
15. The method of claim 11 wherein extending said probe into sealing contact with the borehole wall further comprises forming seal with the borehole wall through the mudcake.
16. A method of determining the supercharge pressure in a formation intersected by a borehole having a wall, the method comprising:
disposing a formation pressure test tool into the borehole, said formation pressure test tool having a probe for isolating a portion of the borehole;
extending said probe into sealing contact with the borehole wall;
performing at least one drawdown test with said formation pressure test tool by drawing formation fluid into a drawdown chamber of said formation pressure test tool and measuring fluid pressure in said drawdown chamber;
modeling the supercharge pressure of the formation using the dynamic properties of a mudcake on the borehole wall;
determining the supercharge pressure of the formation using said supercharge pressure model; and adjusting the properties of the drilling fluid based on the supercharge pressure.
disposing a formation pressure test tool into the borehole, said formation pressure test tool having a probe for isolating a portion of the borehole;
extending said probe into sealing contact with the borehole wall;
performing at least one drawdown test with said formation pressure test tool by drawing formation fluid into a drawdown chamber of said formation pressure test tool and measuring fluid pressure in said drawdown chamber;
modeling the supercharge pressure of the formation using the dynamic properties of a mudcake on the borehole wall;
determining the supercharge pressure of the formation using said supercharge pressure model; and adjusting the properties of the drilling fluid based on the supercharge pressure.
17. The method of claim 16 further comprising adjusting the properties of the drilling fluid to minimize the supercharge pressure.
18. The method of claim 16 further comprising adjusting the chemical properties of the drilling fluid.
19. The method of claim 16 further comprising adjusting the density of the drilling fluid.
20. The method of claim 16 further comprising adjusting the drilling fluid to improve the sealing action of the mudcake.
21. The method of claim 16 further comprising adjusting the drilling fluid to increase the rate of formation of the mudcake.
22. The method of claim 16 wherein extending said probe into sealing contact with the borehole wall further comprises forming seal with the borehole wall through the mudcake.
23. A method of determining the supercharge pressure in a formation intersected by a borehole having a wall, the method comprising:
disposing a formation pressure test tool into the borehole, said formation pressure test tool having a probe for isolating a portion of the borehole;
extending said probe into sealing contact with the borehole wall;
performing at least one drawdown test with said formation pressure test tool by drawing formation fluid into a drawdown chamber of said formation pressure test tool and measuring fluid pressure in said drawdown chamber;
modeling the supercharge pressure of the formation using the dynamic properties of a mudcake on the borehole wall;
determining the supercharge pressure of the formation using said supercharge pressure model;
taking measurements with a logging while drilling sensor; and adjusting the measurements of said logging while drilling sensor based on the supercharge pressure.
disposing a formation pressure test tool into the borehole, said formation pressure test tool having a probe for isolating a portion of the borehole;
extending said probe into sealing contact with the borehole wall;
performing at least one drawdown test with said formation pressure test tool by drawing formation fluid into a drawdown chamber of said formation pressure test tool and measuring fluid pressure in said drawdown chamber;
modeling the supercharge pressure of the formation using the dynamic properties of a mudcake on the borehole wall;
determining the supercharge pressure of the formation using said supercharge pressure model;
taking measurements with a logging while drilling sensor; and adjusting the measurements of said logging while drilling sensor based on the supercharge pressure.
24. The method of claim 23 further comprising determining the distribution of the filtrate invasion using the supercharge pressure model.
25. The method of claim 23 wherein said logging while drilling sensor comprises an electro-magnetic wave resistivity logging sensor.
26. The method of claim 23 wherein extending said probe into sealing contact with the borehole wall further comprises forming seal with the borehole wall through the mudcake.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US54909204P | 2004-03-01 | 2004-03-01 | |
| US60/549,092 | 2004-03-01 | ||
| US57337004P | 2004-05-21 | 2004-05-21 | |
| US60/573,370 | 2004-05-21 | ||
| PCT/US2005/006731 WO2005084332A2 (en) | 2004-03-01 | 2005-03-01 | Methods for measuring a formation supercharge pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2556937A1 true CA2556937A1 (en) | 2005-09-15 |
| CA2556937C CA2556937C (en) | 2010-09-21 |
Family
ID=34922702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2556937A Expired - Fee Related CA2556937C (en) | 2004-03-01 | 2005-03-01 | Methods for measuring a formation supercharge pressure |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7243537B2 (en) |
| AU (1) | AU2005218573B2 (en) |
| BR (1) | BRPI0508357B1 (en) |
| CA (1) | CA2556937C (en) |
| GB (1) | GB2427924B (en) |
| MY (1) | MY140024A (en) |
| NO (1) | NO341575B1 (en) |
| WO (1) | WO2005084332A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009067786A1 (en) * | 2007-11-30 | 2009-06-04 | Services Petroliers Schlumberger | Determination of formation pressure during a drilling operation |
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-
2005
- 2005-03-01 MY MYPI20050830A patent/MY140024A/en unknown
- 2005-03-01 US US11/069,649 patent/US7243537B2/en active Active
- 2005-03-01 GB GB0619273A patent/GB2427924B/en active Active
- 2005-03-01 AU AU2005218573A patent/AU2005218573B2/en not_active Ceased
- 2005-03-01 CA CA2556937A patent/CA2556937C/en not_active Expired - Fee Related
- 2005-03-01 WO PCT/US2005/006731 patent/WO2005084332A2/en active Application Filing
- 2005-03-01 BR BRPI0508357A patent/BRPI0508357B1/en not_active IP Right Cessation
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2006
- 2006-09-06 NO NO20064018A patent/NO341575B1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009067786A1 (en) * | 2007-11-30 | 2009-06-04 | Services Petroliers Schlumberger | Determination of formation pressure during a drilling operation |
| US7765862B2 (en) | 2007-11-30 | 2010-08-03 | Schlumberger Technology Corporation | Determination of formation pressure during a drilling operation |
Also Published As
| Publication number | Publication date |
|---|---|
| NO341575B1 (en) | 2017-12-04 |
| GB2427924A (en) | 2007-01-10 |
| GB2427924B (en) | 2009-07-15 |
| WO2005084332A3 (en) | 2008-11-06 |
| NO20064018L (en) | 2006-09-29 |
| AU2005218573B2 (en) | 2009-05-21 |
| CA2556937C (en) | 2010-09-21 |
| GB0619273D0 (en) | 2006-11-15 |
| BRPI0508357B1 (en) | 2016-09-13 |
| WO2005084332A2 (en) | 2005-09-15 |
| US7243537B2 (en) | 2007-07-17 |
| AU2005218573A1 (en) | 2005-09-15 |
| US20050235745A1 (en) | 2005-10-27 |
| MY140024A (en) | 2009-11-30 |
| BRPI0508357A (en) | 2007-07-24 |
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