WO2014122496A1 - System and method for temporarily sealing a bore hole - Google Patents
System and method for temporarily sealing a bore hole Download PDFInfo
- Publication number
- WO2014122496A1 WO2014122496A1 PCT/IB2013/000636 IB2013000636W WO2014122496A1 WO 2014122496 A1 WO2014122496 A1 WO 2014122496A1 IB 2013000636 W IB2013000636 W IB 2013000636W WO 2014122496 A1 WO2014122496 A1 WO 2014122496A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- well bore
- sections
- inner tubular
- perforations
- tubular
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 39
- 238000007789 sealing Methods 0.000 title abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000002826 coolant Substances 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 229930195733 hydrocarbon Natural products 0.000 claims description 9
- 150000002430 hydrocarbons Chemical class 0.000 claims description 9
- 238000005057 refrigeration Methods 0.000 claims description 8
- 230000004936 stimulating effect Effects 0.000 claims description 6
- 239000004215 Carbon black (E152) Substances 0.000 claims description 4
- 238000012424 Freeze-thaw process Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 238000002955 isolation Methods 0.000 abstract description 15
- 239000003507 refrigerant Substances 0.000 abstract description 7
- 238000007710 freezing Methods 0.000 abstract description 6
- 230000008014 freezing Effects 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 11
- 238000005755 formation reaction Methods 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
- 230000000007 visual effect Effects 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
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/18—Pipes provided with plural fluid passages
-
- 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
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/001—Cooling arrangements
-
- 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Definitions
- the embodiments relate in general to systems and methods for temporarily sealing a bore hole. More particularly, the embodiments are directed to a system and resulting method that temporarily seals at least a portion of bore hole to prevent incursion or excursion of gas or liquid therefrom.
- Multistage fracturing and effective isolation during stimulation is critical to the successful and efficient mining of resources. Further, effective isolation is needed for water shut-off.
- Existing isolation methods include, for example, cementing, which has limited effectiveness in horizontal wells due to leak-off during the cementing operation or while the cement is setting up and can be detrimental or even catastrophic to establishing isolation. Also, while cementing may be more effective in a vertical well, it may not be optimal for wells having a liner.
- refracturing can be an effective resource recovery practice, e.g., over long time intervals
- refracturing has been clone three to tour times during the life of a vertical producing well, however this is not possible in horizontal wells where you have only one chance with conventional state of the art hydraulic fracturing. Weils with poor cement jobs will make restimulation of specific intervals nearly impossible,
- a hydraulic-set mechanical packer such as the RockSeal II can provide differential pressure ratings in a variety of downhole environments.
- An exemplary hydraulic-set mechanical packer includes two solid hydro-mechanical rubber sealing elements that are hydrauiieally set on either side of a fracture to create a seal.
- reactive element packers e.g., swellabie water and oil packers, have also been used as isolation or compartmentalization devices.
- swellabie packers are affixed (pre-swell) to the outside of pipe which is run into the well and are able to increase in size due reaction with one or more fluids in the well bore over an extended period of time.
- Mechanical packers may provide an advantage over cement due to the ability to remove the packers for secondary recovery and refracturing operations. But mechanical packers, even REPs, are limited in their ability to create a perfect seal due to the imperfect contours of the well bore walls. Further, hydraulic-set mechanical packers include moving parts, which introduced inefficiencies and the possibility for breakdown into the system.
- a system for isolating one or more water flooded sections of a well bore includes: an outer tubular and an inner tubular having an annulus formed therebetween and forming a closed system, an external surface of the outer tubular facing the one or more sections of the well bore, the inner tubular having at least a first plurality of perforations formed along a first portion thereof; and a pump for supplying a cooling agent at a first end of the inner tubular, wherein during operation of the pump the cooling agent exits the inner tubular through the at least a first plurality of perforations, enters the annulus and causes water located between the external surface of the outer tubular and a wall of the well bore to freeze and form an ice plug, thereby isolating the one or more flooded sections of the well bore from other sections of the well bore.
- a method for isolating one or more water flooded sections of a well bore includes; introducing a closed refrigeration system into the well bore, the closed refrigeration system including an outer tubular and an. inner tubular having an annulus formed therebetween, wherein the inner tubular includes at least a first plurality of perforations formed along a first portion thereof; aligning the closed refrigeration system with one or more water flooded sections of the well bore, such that the at least a first plurality of perforations are located fore or aft of the one or more water flooded sections; introducing a cooling agent into a first end of the inner tubular, wherein the cooling agent exits the inner tubular through the at least a first plurality of perforations, enters the annulus and causes water located between an external surface of the outer tubular and a wall of the one or more water flooded sections of the well bore to freeze and form an ice plug, thereby isolating the one or more flooded sections of the well bore from other
- a system for treating a well bore to access and control hydrocarbon retrieval includes: a first set of tubul ars for
- FIG. 1 illustrates a first exemplary production zone isolation system
- FIG. 2 illustrates a second exemplary production zone isolation system in accordance with an embodiment described herein.
- FIG. 3 illustrates a third exemplary production zone isolation system in accordance with an embodiment described herein.
- FIG. 1 a first exemplary embodiment is shown. As illustrated, a representaiive section of a well .10 drilled into a hydrocarbon-bearing subsurface formation 20 is shown.
- FIG. 1 illustrates a production zone(s) 12 (i.e., the portion of wel l 10 that penetrates formation 20) to allow hydrocarbons H to flow from formation 20 into well 10.
- the well 10 is unlined and hydrocarbons can flow directly into well 10 from cracks or fissures 5 in the subsurface 20.
- formation fluids comprising liquid and/or gaseous hydrocarbons H are conveyed to the surface through a string of production tubulars (not shown) which is disposed within well 10 down to the production zone.
- FIG. I illustrates and exemplary sealing mechanism.
- the sealing mechanism is a refrigeration system 30 which is introduced into the well 10 and aligned with the production zone 12 by a crane or rig (not shown, but known to those skilled in the art) and includes first and second concentric tubulars 32, 34 for circulating a liquid or gas refrigerant therethrough. As shown, the first inner tubular 32 has a smaller diameter than second outer tubular 34 and is fitted therein, creating an annuius 36
- the first tubular 32 includes areas of expanders 38, which, are perforations in the first tubular 32.
- the sealing mechanism system 30 is a closed system.
- the sealing mechanism is positioned adjacent to or within the production zone 12 (or portion thereof) which needs to be sealed off such that the expanders 38 are positioned parallel to areas aft and fore of the area which is to be isolated.
- a refrigerant or cooling agent 40 e.g., liquid nitrogen, liquid carbon dioxide, calcium chloride brine, or, preferably, liquid propane, is pumped into the first inner tubular and exits out of the expanders 38 and into regions 42 of second outer tubular 34.
- freezing is induced, thereby forming ice plugs 44 and a sealed region S therebetween.
- the refrigerant 40 is not in direct contact with the surrounding water but is instead in juxtaposition to it and separated therefrom by second outer tubular 34.
- the ice plugs 44 (and 45 as described with reference to Figure 3) are superior to any mechanical or other known seal due to the pervasive diffusion attribute of water and the further attribute of expansion upon freezing.
- FIG. 2 illustrates a second exemplary embodiment which is operated as described with respect to FIG. 1, but is slightly different in structure in that well 10 includes a well liner 50, with perforations (or slots) 52 therein, in this embodiment, the ice plugs 44 are .formed through the perforations 52 of the well liner 50. Accordingly, the sealing mechanism works equally well with a lined and unlined wells.
- FIG. 3 illustrates a third exemplary embodiment which is also operated generally as described with respect to FIG. i (and FIG. 2), but is, again, slightly different in structure in a number of ways.
- well 10 includes a well liner 50, with perforations (or slots) 52 therein.
- the first inner tubular 32 includes other expanders 39 at various intervals along the length of the first inner tubular 32 in addition to expanders 38.
- the refrigerant or cooling agent 40 when the refrigerant or cooling agent 40 is pumped into the first inner tubular, it exits out of the expanders 38 and 39 into regions 42 and 43 of second outer tubular 34 and at the pressurized water filled regions of the well 10 that are adjacent to the regions 42 and 43 of the second outer tubular 34, freezing is induced, thereby forming ice plugs 44 and a generally sealed region S therebetween. Additionally, individual ice plugs 45 are formed in the cracks 5, thereby providing additional plugging functionality directly to the source of hydrocarbons II.
- the ice plugs may be retrieved and the sealed regions removed using a thawing process, whereby a heating agent is pumped into the first inner tubular 32 in the same fashion as cooling agent 40 and exits out of the expanders 38 (and 39) and into regions 42 (and 43) of second outer tubular 34.
- the heating agent operates to effectively melt the ice plugs.
- the freeze and thaw processes are repeatable along desired portions of the various production zones in the well bore. Individually or at multiple locations at the same time. Another alternate method for thawing would be to externally heat and circulate the water in the filled welibore causing the ice plugs to melt. Additionally, yet another thawing method would be for the heat generated by the formation to melt the ice naturally.
- Exemplary heating and/or cooling agent(s) referenced herein include, but are not limited to: liquid nitrogen, liquid carbon dioxide, calcium chloride brine, or, preferably, liquid propane, steam, hot air, hot oil, chemically created exothermic reactions i.e., sodium hydroxide+i-LO, Calcium Oxide -f- 3 ⁇ 40, liquid hydrogen, liquid methane, ammonia, super cooled methanol and ethanol, helium, blast air. HFC ' s, and glycol/water.
- the fracturing stage of a multistage fracture and isolation process referenced above on the Background of the Embodiments may be performed by various known systems and methods including those described in U.S. Patent No. 7,775,281 entitled METHOD AND APPARATUS FOR STIMULATING PRODUCTION FROM OIL AND GAS WELLS BY FREEZE-THAW CYCLING and pending U.S. Patent Application Publication No.
- This new system and method fractures the subsurface formation by freezing a water-containing zone within the formation in the vicinity of a well, thereby generating expansive pressures which expand or created cracks and fissures in the formation. The frozen zone is then allowed to thaw. This freeze-ihaw process causes rock particles in existing cracks and fissures to become dislodged and reoriented therewithin, and also causes new or additional rock particles to become disposed within both existing and newly-formed cracks and fissures.
- the particles present in the cracks and fissures act as natural proppants to help keep the cracks and fissures open, thereby facilitating the flow of fluids from the formation into the well after the formation has thawed. Freeze-thaw fracturing enables recovery of higher percentages of non-naturally-flowing hydrocarbons from low-permeability formations than has been possible using previously known stirnulation methods.
- the isolation systems described and contemplated herein may be used in conjunction with a freeze-thavv system and method and may take advantage of existing tubular components, refrigerant sources and pumps and alignment rigs as the systems and processes are based on similar concepts of using water .freezing techniques - as compared to mechanical means - to facilitate the desired results.
- the isolation systems may be implemented in a first section of a well bore while a freeze-thavv fracturing process (or other fracturing process) and/or hydrocarbon retrieval processes are implemented at other sections of the same well bore.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2013/000636 WO2014122496A1 (en) | 2013-02-08 | 2013-02-08 | System and method for temporarily sealing a bore hole |
GB1513579.1A GB2528185B (en) | 2013-02-08 | 2013-02-08 | System and method for temporarily sealing a bore hole |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2013/000636 WO2014122496A1 (en) | 2013-02-08 | 2013-02-08 | System and method for temporarily sealing a bore hole |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014122496A1 true WO2014122496A1 (en) | 2014-08-14 |
Family
ID=51299271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2013/000636 WO2014122496A1 (en) | 2013-02-08 | 2013-02-08 | System and method for temporarily sealing a bore hole |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2528185B (en) |
WO (1) | WO2014122496A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111894542A (en) * | 2020-06-24 | 2020-11-06 | 中国矿业大学 | Low-temperature fluid reinforced injection ice blocking fracturing method for horizontal well |
CN114458853A (en) * | 2021-12-27 | 2022-05-10 | 皖能铜陵发电有限公司 | Improved ice plug treatment process for steam turbine generator unit |
CN114673853A (en) * | 2021-12-27 | 2022-06-28 | 皖能铜陵发电有限公司 | Ice plug processing and overhauling method for steam turbine generator unit |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1342780A (en) * | 1919-06-09 | 1920-06-08 | Dwight G Vedder | Method and apparatus for shutting water out of oil-wells |
US3439744A (en) * | 1967-06-23 | 1969-04-22 | Shell Oil Co | Selective formation plugging |
US3559737A (en) * | 1968-05-06 | 1971-02-02 | James F Ralstin | Underground fluid storage in permeable formations |
US3978921A (en) * | 1971-05-28 | 1976-09-07 | Rose Shuffman | Apparatus for cryothermal fracturing of rock formations |
US7775281B2 (en) * | 2006-05-10 | 2010-08-17 | Kosakewich Darrell S | Method and apparatus for stimulating production from oil and gas wells by freeze-thaw cycling |
US20100263874A1 (en) * | 2009-04-17 | 2010-10-21 | Kosakewich Darrell S | Method and apparatus for freeze-thaw well stimulation using orificed refrigeration tubing |
-
2013
- 2013-02-08 WO PCT/IB2013/000636 patent/WO2014122496A1/en active Application Filing
- 2013-02-08 GB GB1513579.1A patent/GB2528185B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1342780A (en) * | 1919-06-09 | 1920-06-08 | Dwight G Vedder | Method and apparatus for shutting water out of oil-wells |
US3439744A (en) * | 1967-06-23 | 1969-04-22 | Shell Oil Co | Selective formation plugging |
US3559737A (en) * | 1968-05-06 | 1971-02-02 | James F Ralstin | Underground fluid storage in permeable formations |
US3978921A (en) * | 1971-05-28 | 1976-09-07 | Rose Shuffman | Apparatus for cryothermal fracturing of rock formations |
US7775281B2 (en) * | 2006-05-10 | 2010-08-17 | Kosakewich Darrell S | Method and apparatus for stimulating production from oil and gas wells by freeze-thaw cycling |
US20100263874A1 (en) * | 2009-04-17 | 2010-10-21 | Kosakewich Darrell S | Method and apparatus for freeze-thaw well stimulation using orificed refrigeration tubing |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111894542A (en) * | 2020-06-24 | 2020-11-06 | 中国矿业大学 | Low-temperature fluid reinforced injection ice blocking fracturing method for horizontal well |
CN111894542B (en) * | 2020-06-24 | 2021-07-02 | 中国矿业大学 | Low-temperature fluid reinforced injection ice blocking fracturing method for horizontal well |
CN114458853A (en) * | 2021-12-27 | 2022-05-10 | 皖能铜陵发电有限公司 | Improved ice plug treatment process for steam turbine generator unit |
CN114673853A (en) * | 2021-12-27 | 2022-06-28 | 皖能铜陵发电有限公司 | Ice plug processing and overhauling method for steam turbine generator unit |
CN114673853B (en) * | 2021-12-27 | 2024-05-17 | 皖能铜陵发电有限公司 | Ice plug treatment and overhaul method for steam turbine generator unit |
Also Published As
Publication number | Publication date |
---|---|
GB201513579D0 (en) | 2015-09-16 |
GB2528185B (en) | 2017-09-27 |
GB2528185A (en) | 2016-01-13 |
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