WO2004072439A1 - A device and a method for optional closing of a section of a well - Google Patents
A device and a method for optional closing of a section of a well Download PDFInfo
- Publication number
- WO2004072439A1 WO2004072439A1 PCT/NO2004/000044 NO2004000044W WO2004072439A1 WO 2004072439 A1 WO2004072439 A1 WO 2004072439A1 NO 2004000044 W NO2004000044 W NO 2004000044W WO 2004072439 A1 WO2004072439 A1 WO 2004072439A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- well
- pluggable
- opening
- sealing body
- pipe
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 26
- 230000004888 barrier function Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 26
- 239000012530 fluid Substances 0.000 description 16
- 238000010276 construction Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
Definitions
- This invention regards a device for optional shut-off of the inflow from a section of a well. More specifically, it regards a device in which bodies having a specific geometry and dimension are placed in corresponding openings in a section of a well in order to be able to close the section permanently or for a period of time.
- the invention also includes a method of implementing the invention.
- a well such as petroleum well is often lined with a casing, where the section of casing running through the well formation is perforated in order to allow the inflow of formation fluid. Due to the geological characteristics of the well formation and the extent of the well in question, and its positioning in the well formation, it may be desirable to close one or more sections of the well for a longer or shorter period of time. The aim may be to stimulate the inflow of well fluid from the other well sections or reduce the inflow or water or gas. It is known to use surface operated inflow control valves. These are costly and often have a low operational reliability.
- the object of the invention is to remedy the disadvantages of prior art.
- a tubular passage hereinafter termed production tubing
- the receiver is designed to sealingly capture and hold a sealing body that exhibits a geometry and dimension that correspond to that of the opening, the sealing body being preferably carried from the surface in a carrier fluid.
- the receiver may, as an example, be disposed between well sections. Using several receivers in a well where each receiver is designed to be able only to capture a sealing body with a corresponding geometry and dimension, makes it possible to select which section of the well is to be closed.
- a sealing body is selected which can pass through the first receiver, and which is a complementary fit to the second receiver.
- a receiver according to the invention is equipped with a barrier designed to prevent dislocation of the captured sealing body from the receiver after production from the well has been initiated.
- At least one flow chamber is provided between the well formation and the production tubing.
- the flow chamber communicates with the well formation via at least one chamber opening, possibly via a sand screen and/or other fluid flow-through devices.
- the flow chamber communicates with the production tubing via at least one pluggable opening and possibly via other fluid flow-through devices.
- the flow chamber is designed only to be able to receive sealing bodies that have been given geometry and dimension corresponding to that of the pluggable opening, and also smaller sealing bodies. Other sealing bodies will not be able to pass into the flow chamber.
- the shape of the pluggable opening may be such as to allow sealing bodies of a specific dimension or a specific dimensional range to only flow into the flow chamber, and not back through the pluggable opening.
- sealing bodies When sealing bodies are caused to flow into the production tubing from the surface, sealing bodies of a suitable geometry and a dimension smaller than or equal to that of the pluggable opening flow into the flow chamber. Sealing bodies that are unable to pass through the pluggable opening will be able to settle over and close the pluggable opening.
- sealing bodies of a smaller dimension may flow back to the production tubing via the pluggable opening, while other sealing bodies located in the flow chamber remain and are able to plug the pluggable opening, thus preventing well fluid from flowing into the production tubing.
- the sealing bodies may be made from a material, which dissolves over time as a result of e.g. corrosion or other chemical or thermal decomposition. It may be possible to dissolve the sealing bodies by use of certain fluids such as acids or bases, or they may be of a permanent type. Time- limited closure may be of interest e.g. when conducting tests to determine which flow chambers are to be closed.
- the device is equally well suited for both lined and unlined wells.
- Figure 1 shows production tubing disposed in a well formation, which production tubing is equipped with two receivers, and where a sealing body is passing into the well;
- Figure 2 shows the same as figure 1, but here the sealing body has been captured in a receiver
- Figure 3 shows production tubing equipped with two flow chambers and arranged in a well formation
- Figure 4 shows the device of figure 3 on a larger scale, where a sealing body is entering the flow chamber
- Figure 5 shows a sealing body that is too large to pass into the flow chamber
- Figure 6 shows a sealing body that is too large to pass out of the first opening of the flow chamber.
- reference number 1 denotes a receiver that is placed in production tubing 2, and which is designed to capture a sealing body 4 of a corresponding geometry and dimension.
- the production tubing is located in a well formation 6, where sections of the well formation 6 can be separated by a packing 8 that has been set in the annulus 10 between the production tubing 2 and the well formation 6.
- the receiver 1 is formed with a shoulder 12 designed to prevent sealing bodies 4 with a corresponding geometry and dimension to that of the receiver 1 from passing through the receiver 1.
- receivers 1 are arranged along the production tubing 2 in a well formation.
- the receivers 1 are shaped so as to have a flow dimension, which decreases away from the surface, with the receiver 1 located closest to the surface having the largest flow dimension, and the receiver 1 located furthest away having the smallest flow dimension.
- the receiver 1 is equipped with a barrier 14, which may be in the form of e.g. a flexible material or a spring mechanism of a type that is known per se .
- the barrier 14 is formed so as to allow a sealing body having a geometry and dimension corresponding to that of the receiver 1 in question to be moved through the barrier 14 in one direction, but not in the opposite direction. Smaller sealing bodies may pass through the barrier in both directions.
- At least one flow chamber 20 is sealingly connected to the production tubing 2 and placed in the well formation 6, see figure 3.
- the sections of the well formation 6 may, as described above, be separated by a packing 8 that has been set in the annulus 10 between the production tubing 2 and the well formation 6.
- the wall portion 22 of the flow chamber 20 is provided with a chamber opening 24 arranged to connect the cavity 26 of the flow chamber 20 with the well formation 6.
- a pluggable opening 28 runs through the wall 30 of the production tubing 2, and is arranged to connect the cavity 26 with the production tubing 2.
- the chamber opening 24 is dimensioned so that sealing bodies 32 of the dimension in question cannot pass through the chamber opening 24.
- the pluggable opening 28 is equipped with a back flow stopper 34, where this may be constructed from a flexible material or as a spring mechanism that is known per se.
- a sealing body 32 here in the form of a ball
- the ball 32 will seek to follow the fluid out of the production tubing 2 via the pluggable opening 28, the cavity 26 and the chamber opening 24, to the well formation 6.
- Balls 32 smaller than the diameter of the pluggable opening 28 will be able to flow in through the pluggable opening 28 and the back flow stopper 34 to the cavity 26, see figure 4, while larger balls 32 will be unable to enter the pluggable opening 28, see figure 5.
- Balls 32 present in the cavity 26 may during the inflow of carrier fluid from the production tubing 2 settle sealingly over the chamber opening 24, thus preventing further inflow of carrier fluid to the cavity 26.
- the closing function of the sealing bodies 4, 32 may be timed or controlled through injection of liquid solvents.
- the device of the invention makes it possible to control, which receivers 1 or flow chambers 20 are to be closed, and also how long they are to remain closed.
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)
- Pipe Accessories (AREA)
- Push-Button Switches (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/545,871 US20060231260A1 (en) | 2003-02-17 | 2004-02-13 | Device and a method for optional closing of a section of a well |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20030739A NO319620B1 (en) | 2003-02-17 | 2003-02-17 | Device and method for selectively being able to shut off a portion of a well |
NO20030739 | 2003-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004072439A1 true WO2004072439A1 (en) | 2004-08-26 |
Family
ID=19914488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO2004/000044 WO2004072439A1 (en) | 2003-02-17 | 2004-02-13 | A device and a method for optional closing of a section of a well |
Country Status (3)
Country | Link |
---|---|
US (1) | US20060231260A1 (en) |
NO (1) | NO319620B1 (en) |
WO (1) | WO2004072439A1 (en) |
Cited By (6)
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US7296597B1 (en) | 2006-06-08 | 2007-11-20 | Halliburton Energy Services Inc. | Methods for sealing and isolating pipelines |
US7452161B2 (en) | 2006-06-08 | 2008-11-18 | Halliburton Energy Services, Inc. | Apparatus for sealing and isolating pipelines |
US7478676B2 (en) | 2006-06-09 | 2009-01-20 | Halliburton Energy Services, Inc. | Methods and devices for treating multiple-interval well bores |
US7575062B2 (en) | 2006-06-09 | 2009-08-18 | Halliburton Energy Services, Inc. | Methods and devices for treating multiple-interval well bores |
US7717180B2 (en) | 2006-06-29 | 2010-05-18 | Halliburton Energy Services, Inc. | Swellable elastomers and associated methods |
US8592352B2 (en) | 2009-06-15 | 2013-11-26 | Halliburton Energy Services, Inc. | Cement compositions comprising particulate foamed elastomers and associated methods |
Families Citing this family (2)
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US9540911B2 (en) | 2010-06-24 | 2017-01-10 | Schlumberger Technology Corporation | Control of multiple tubing string well systems |
US10202829B2 (en) | 2013-11-27 | 2019-02-12 | Weatherford Technology Holdings, Llc | Inflow control device having elongated slots for bridging off during fluid loss control |
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2003
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-
2004
- 2004-02-13 WO PCT/NO2004/000044 patent/WO2004072439A1/en active Search and Examination
- 2004-02-13 US US10/545,871 patent/US20060231260A1/en not_active Abandoned
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7296597B1 (en) | 2006-06-08 | 2007-11-20 | Halliburton Energy Services Inc. | Methods for sealing and isolating pipelines |
US7452161B2 (en) | 2006-06-08 | 2008-11-18 | Halliburton Energy Services, Inc. | Apparatus for sealing and isolating pipelines |
US7478676B2 (en) | 2006-06-09 | 2009-01-20 | Halliburton Energy Services, Inc. | Methods and devices for treating multiple-interval well bores |
US7575062B2 (en) | 2006-06-09 | 2009-08-18 | Halliburton Energy Services, Inc. | Methods and devices for treating multiple-interval well bores |
US7874365B2 (en) | 2006-06-09 | 2011-01-25 | Halliburton Energy Services Inc. | Methods and devices for treating multiple-interval well bores |
US7717180B2 (en) | 2006-06-29 | 2010-05-18 | Halliburton Energy Services, Inc. | Swellable elastomers and associated methods |
US8592352B2 (en) | 2009-06-15 | 2013-11-26 | Halliburton Energy Services, Inc. | Cement compositions comprising particulate foamed elastomers and associated methods |
US8807216B2 (en) | 2009-06-15 | 2014-08-19 | Halliburton Energy Services, Inc. | Cement compositions comprising particulate foamed elastomers and associated methods |
US10087357B2 (en) | 2009-06-15 | 2018-10-02 | Halliburton Energy Services, Inc. | Cement compositions comprising particulate foamed elastomers and associated methods |
Also Published As
Publication number | Publication date |
---|---|
NO319620B1 (en) | 2005-09-05 |
US20060231260A1 (en) | 2006-10-19 |
NO20030739L (en) | 2004-08-18 |
NO20030739D0 (en) | 2003-02-17 |
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