DE60007162D1 - PERFORATION OF DRILL HOLES WHEN UNDER PRESSURE - Google Patents
PERFORATION OF DRILL HOLES WHEN UNDER PRESSUREInfo
- Publication number
- DE60007162D1 DE60007162D1 DE60007162T DE60007162T DE60007162D1 DE 60007162 D1 DE60007162 D1 DE 60007162D1 DE 60007162 T DE60007162 T DE 60007162T DE 60007162 T DE60007162 T DE 60007162T DE 60007162 D1 DE60007162 D1 DE 60007162D1
- Authority
- DE
- Germany
- Prior art keywords
- chamber
- liquid
- casing
- under pressure
- displaced
- 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.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 abstract 5
- 229930195733 hydrocarbon Natural products 0.000 abstract 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 238000007789 sealing Methods 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 1
- 230000002706 hydrostatic effect Effects 0.000 abstract 1
- 230000000977 initiatory effect Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 239000000463 material Substances 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
- E21B21/085—Underbalanced techniques, i.e. where borehole fluid pressure is below formation pressure
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Earth Drilling (AREA)
- Extraction Or Liquid Replacement (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Materials For Medical Uses (AREA)
- Drilling And Boring (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
There is disclosed a method of initiating production of hydrocarbons from a well having a column of liquid to provide a hydrostatic head. The method comprises inserting a tubular member inside a casing to a required depth in the liquid to define a chamber, then sealing the chamber from the outside environment. A gaseous material is then supplied under pressure to the chamber to create a pressure differential between the chamber and the outside environment, and cause the liquid to be displaced and flow along a flow conduit. The displaced liquid is collected and the casing perforated to enable hydrocarbons to flow. An apparatus is provided and includes a tubular member for insertion into the well casing, means for sealing the chamber, gas supply means to supply gas under pressure to the chamber, fluid flow means to allow collection of displaced liquid, and means to perforate the casing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9923200.1A GB9923200D0 (en) | 1999-10-01 | 1999-10-01 | Fluid extraction |
| PCT/GB2000/003741 WO2001025595A1 (en) | 1999-10-01 | 2000-09-29 | Underbalanced perforation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE60007162D1 true DE60007162D1 (en) | 2004-01-22 |
Family
ID=10861918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE60007162T Expired - Lifetime DE60007162D1 (en) | 1999-10-01 | 2000-09-29 | PERFORATION OF DRILL HOLES WHEN UNDER PRESSURE |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1220972B1 (en) |
| AT (1) | ATE256247T1 (en) |
| AU (1) | AU7537900A (en) |
| DE (1) | DE60007162D1 (en) |
| DK (1) | DK1220972T3 (en) |
| GB (1) | GB9923200D0 (en) |
| WO (1) | WO2001025595A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6598682B2 (en) | 2000-03-02 | 2003-07-29 | Schlumberger Technology Corp. | Reservoir communication with a wellbore |
| US6732798B2 (en) | 2000-03-02 | 2004-05-11 | Schlumberger Technology Corporation | Controlling transient underbalance in a wellbore |
| US7036594B2 (en) | 2000-03-02 | 2006-05-02 | Schlumberger Technology Corporation | Controlling a pressure transient in a well |
| US7284612B2 (en) | 2000-03-02 | 2007-10-23 | Schlumberger Technology Corporation | Controlling transient pressure conditions in a wellbore |
| US7290617B2 (en) | 2004-01-13 | 2007-11-06 | Schlumberger Technology Corporation | Running a completion assembly without killing a well |
| US7243725B2 (en) | 2004-05-08 | 2007-07-17 | Halliburton Energy Services, Inc. | Surge chamber assembly and method for perforating in dynamic underbalanced conditions |
| BRPI0919556B8 (en) | 2008-10-03 | 2019-07-30 | Halliburton Energy Services Inc | method, system for drilling a well, and, computer readable medium |
| US9759048B2 (en) | 2015-06-29 | 2017-09-12 | Owen Oil Tools Lp | Perforating gun for underbalanced perforating |
| CN106930715B (en) * | 2017-05-15 | 2018-12-14 | 中国石油化工股份有限公司 | Oil-water well self-propelled nitrogen negative pressure returns row's casting and dragging free device and its application method |
| US11346184B2 (en) | 2018-07-31 | 2022-05-31 | Schlumberger Technology Corporation | Delayed drop assembly |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4175042A (en) * | 1976-10-26 | 1979-11-20 | Texas Brine Corporation | Well completion and work over fluid and method of use |
| US4650010A (en) * | 1984-11-27 | 1987-03-17 | Halliburton Company | Borehole devices actuated by fluid pressure |
| US6065550A (en) * | 1996-02-01 | 2000-05-23 | Gardes; Robert | Method and system for drilling and completing underbalanced multilateral wells utilizing a dual string technique in a live well |
| US5635636A (en) * | 1996-05-29 | 1997-06-03 | Alexander; Lloyd G. | Method of determining inflow rates from underbalanced wells |
-
1999
- 1999-10-01 GB GBGB9923200.1A patent/GB9923200D0/en not_active Ceased
-
2000
- 2000-09-29 AT AT00964443T patent/ATE256247T1/en not_active IP Right Cessation
- 2000-09-29 DE DE60007162T patent/DE60007162D1/en not_active Expired - Lifetime
- 2000-09-29 AU AU75379/00A patent/AU7537900A/en not_active Abandoned
- 2000-09-29 WO PCT/GB2000/003741 patent/WO2001025595A1/en active IP Right Grant
- 2000-09-29 DK DK00964443T patent/DK1220972T3/en active
- 2000-09-29 EP EP00964443A patent/EP1220972B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001025595A1 (en) | 2001-04-12 |
| AU7537900A (en) | 2001-05-10 |
| DK1220972T3 (en) | 2004-04-13 |
| GB9923200D0 (en) | 1999-12-01 |
| ATE256247T1 (en) | 2003-12-15 |
| EP1220972A1 (en) | 2002-07-10 |
| EP1220972B1 (en) | 2003-12-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8332 | No legal effect for de |