WO2015024814A3 - Method of calculating depth of well bore - Google Patents
Method of calculating depth of well bore Download PDFInfo
- Publication number
- WO2015024814A3 WO2015024814A3 PCT/EP2014/067221 EP2014067221W WO2015024814A3 WO 2015024814 A3 WO2015024814 A3 WO 2015024814A3 EP 2014067221 W EP2014067221 W EP 2014067221W WO 2015024814 A3 WO2015024814 A3 WO 2015024814A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- location
- well fluid
- value
- calculating
- Prior art date
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
- E21B47/00—Survey of boreholes or wells
- E21B47/04—Measuring depth or liquid level
Abstract
A method of calculating vertical depth in a well bore containing a drill pipe and well fluid, comprises the steps of: a) using a first pressure sensor to measure the pressure of said well fluid at a first location to produce a first pressure value; b) using a second pressure sensor fixed to said drill pipe to measure the pressure of said well fluid at a second location to produce a second pressure value; c) calculating a fluid density value for said well fluid using said first and second pressure values; d) using a third pressure sensor fixed to said drill pipe to measure the pressure of said well fluid at a third location to produce a third pressure value; e) determining a reference pressure, being the pressure of said well fluid at a reference location; and f) calculating the vertical depth of said third location using said fluid density value, said third pressure value and said reference pressure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1315137.8 | 2013-08-23 | ||
| GB1315137.8A GB2517502B (en) | 2013-08-23 | 2013-08-23 | Method of calculating depth of well bore |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2015024814A2 WO2015024814A2 (en) | 2015-02-26 |
| WO2015024814A3 true WO2015024814A3 (en) | 2015-05-28 |
Family
ID=49355861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2014/067221 WO2015024814A2 (en) | 2013-08-23 | 2014-08-12 | Method of calculating depth of well bore |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2517502B (en) |
| WO (1) | WO2015024814A2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2014353871B2 (en) | 2013-11-19 | 2018-10-25 | Minex Crc Ltd | Borehole logging methods and apparatus |
| CN111322060A (en) * | 2020-03-12 | 2020-06-23 | 中煤科工集团西安研究院有限公司 | Underground coal mine drilling depth metering method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6026914A (en) * | 1998-01-28 | 2000-02-22 | Alberta Oil Sands Technology And Research Authority | Wellbore profiling system |
| US20070277975A1 (en) * | 2006-05-31 | 2007-12-06 | Lovell John R | Methods for obtaining a wellbore schematic and using same for wellbore servicing |
| US20130090855A1 (en) * | 2011-08-26 | 2013-04-11 | John Rasmus | Methods for evaluating inflow and outflow in a subterraean wellbore |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4596139A (en) * | 1985-01-28 | 1986-06-24 | Mobil Oil Corporation | Depth referencing system for a borehole gravimetry system |
-
2013
- 2013-08-23 GB GB1315137.8A patent/GB2517502B/en active Active
-
2014
- 2014-08-12 WO PCT/EP2014/067221 patent/WO2015024814A2/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6026914A (en) * | 1998-01-28 | 2000-02-22 | Alberta Oil Sands Technology And Research Authority | Wellbore profiling system |
| US20070277975A1 (en) * | 2006-05-31 | 2007-12-06 | Lovell John R | Methods for obtaining a wellbore schematic and using same for wellbore servicing |
| US20130090855A1 (en) * | 2011-08-26 | 2013-04-11 | John Rasmus | Methods for evaluating inflow and outflow in a subterraean wellbore |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2517502A (en) | 2015-02-25 |
| GB2517502B (en) | 2015-08-26 |
| GB201315137D0 (en) | 2013-10-09 |
| WO2015024814A2 (en) | 2015-02-26 |
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