NO20035561L - Bruk av et aksial-akselerometer til nedihulls estimering av oyeblikkelig borehastighet, for kabel- og LWD-anvendelser - Google Patents
Bruk av et aksial-akselerometer til nedihulls estimering av oyeblikkelig borehastighet, for kabel- og LWD-anvendelserInfo
- Publication number
- NO20035561L NO20035561L NO20035561A NO20035561A NO20035561L NO 20035561 L NO20035561 L NO 20035561L NO 20035561 A NO20035561 A NO 20035561A NO 20035561 A NO20035561 A NO 20035561A NO 20035561 L NO20035561 L NO 20035561L
- Authority
- NO
- Norway
- Prior art keywords
- downhole
- rop
- cable
- speed estimation
- drilling speed
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title abstract 4
- 230000001133 acceleration Effects 0.000 abstract 1
- 238000004891 communication Methods 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
- 238000004441 surface measurement Methods 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/005—Below-ground automatic control systems
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B45/00—Measuring the drilling time or rate of penetration
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Bestemmelse av inntrengningshastighet (ROP) ved utboring har vanligvis vært basert på overflatemålinger, og det kan da hende at man ikke oppnår en nøyaktig angivelse av den faktiske ROP-verdi. Dette kan forårsake problemer ved logging-under-utboring (LWD). På grunn av manglende høyhastighetskommunikasjon mellom overflate og nedhulls under utboring, vil en vanlig fremgangsmåte for måling av ROP på overflaten ikke kunne gi en løsning på dette problem. Den momentane ROP-verdi kan imidlertid utledes nede i borehullet med en viss grad av nøyaktighet ved å utnytte et akselerometer som anbringes på (eller nær) verktøyet for å måle akselerasjon i aksial retning. Når et trekomponents akselerometer brukes, kan fremgangsmåten benyttes for å bestemme borehullets sanne vertikale dybde.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29829901P | 2001-06-14 | 2001-06-14 | |
PCT/US2002/018912 WO2002103158A1 (en) | 2001-06-14 | 2002-06-13 | Use of axial accelerometer for estimation of instantaneous rop downhole for lwd and wireline applications |
Publications (3)
Publication Number | Publication Date |
---|---|
NO20035561D0 NO20035561D0 (no) | 2003-12-12 |
NO20035561L true NO20035561L (no) | 2004-02-12 |
NO327960B1 NO327960B1 (no) | 2009-10-26 |
Family
ID=23149903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20035561A NO327960B1 (no) | 2001-06-14 | 2003-12-12 | Bruk av et aksialakselerometer til nedihulls estimering av oyeblikkelig borehastighet, for kabel- og LWD-anvendelser |
Country Status (5)
Country | Link |
---|---|
US (1) | US6769497B2 (no) |
CA (1) | CA2450653C (no) |
GB (1) | GB2393520B (no) |
NO (1) | NO327960B1 (no) |
WO (1) | WO2002103158A1 (no) |
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-
2002
- 2002-06-11 US US10/167,332 patent/US6769497B2/en not_active Expired - Lifetime
- 2002-06-13 CA CA002450653A patent/CA2450653C/en not_active Expired - Fee Related
- 2002-06-13 GB GB0328883A patent/GB2393520B/en not_active Expired - Fee Related
- 2002-06-13 WO PCT/US2002/018912 patent/WO2002103158A1/en not_active Application Discontinuation
-
2003
- 2003-12-12 NO NO20035561A patent/NO327960B1/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US6769497B2 (en) | 2004-08-03 |
NO327960B1 (no) | 2009-10-26 |
WO2002103158A1 (en) | 2002-12-27 |
CA2450653A1 (en) | 2002-12-27 |
NO20035561D0 (no) | 2003-12-12 |
GB0328883D0 (en) | 2004-01-14 |
US20020195276A1 (en) | 2002-12-26 |
GB2393520A (en) | 2004-03-31 |
CA2450653C (en) | 2007-12-04 |
GB2393520B (en) | 2005-03-16 |
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