US20190040712A1 - Method for counteracting land subsidence in the vicinity of an underground reservoir - Google Patents

Method for counteracting land subsidence in the vicinity of an underground reservoir Download PDF

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Publication number
US20190040712A1
US20190040712A1 US16/072,936 US201716072936A US2019040712A1 US 20190040712 A1 US20190040712 A1 US 20190040712A1 US 201716072936 A US201716072936 A US 201716072936A US 2019040712 A1 US2019040712 A1 US 2019040712A1
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United States
Prior art keywords
casing
reinforcing material
reinforcing
production
reservoir
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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.)
Abandoned
Application number
US16/072,936
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English (en)
Inventor
Bert Fennechienes Alberts
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Karizan Bv
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Karizan Bv
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Filing date
Publication date
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Assigned to HALPA INTELLECTUAL PROPERTIES B.V. reassignment HALPA INTELLECTUAL PROPERTIES B.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALBERTS, Bert Fennechienes
Assigned to KARIZAN B.V. reassignment KARIZAN B.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HALPA INTELLECTUAL PROPERTIES B.V.
Publication of US20190040712A1 publication Critical patent/US20190040712A1/en
Abandoned legal-status Critical Current

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    • 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
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/138—Plastering the borehole wall; Injecting into the formation
    • 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
    • E21B43/02—Subsoil filtering
    • E21B43/025—Consolidation of loose sand or the like round the wells without excessively decreasing the permeability thereof

Definitions

  • the present invention generally relates to a method for counteracting land subsidence in the vicinity of an underground reservoir accessible through a number of wellbores.
  • Land subsidence is a known negative side effect of production of natural resources, for example hydrocarbons, from an underground reservoir through a well. Extraction of hydrocarbons causes compaction of the reservoir rock leading to subsidence at ground level. Land subsidence causes environmental damage and effects water management. When earth layers are compacted near a natural fault, tension may build up and the earth layers will start shifting in a disruptive manner causing earthquakes. In recent years production of gas from the Groningen gas field in the north-eastern part of The Netherlands has led to numerous claims for damages to buildings resulting from earthquakes caused by the gas production. Many buildings in the area show visible damage, such as cracks in the walls.
  • the present invention has for its object to provide a method to prevent or minimize land subsidence due to activities, such as production of (natural) resources, involving transport of materials to and/or from an underground reservoir through a well having a well bore running in the direction of the reservoir.
  • this object is achieved by the method steps of bringing reinforcing material into a casing present in the wellbore and making the reinforcing material flow out through perforations in the casing for forming a number of reinforcing objects of reinforcing material around the wellbore, whereby the method comprises the step of forming cracks in the reservoir surrounding the wellbore and filling the cracks with the reinforcing material for forming the reinforcing objects.
  • the reinforcing objects reinforce the reservoir soil surrounding the well bore and adequately prevent land subsidence. Furthermore, the reinforcing material replaces the fluids extracted from the reservoir to prevent the compaction of the reservoir rock.
  • the present invention is specifically suitable for use in a reservoir of non-permeable soil, such as shale or rock.
  • the reinforcing objects have a dome or arch shaped cross-section.
  • the dome or arch shape enables the reinforcing objects to withstand high loads from surrounding layers, for instance salt layers, and consequently attribute to prevent land subsidence.
  • a suitable type of reinforcing material comprises grout.
  • the reinforcing objects are formed around a substantially horizontal part of the wellbore to maximally support the well bore and to create an enhanced supporting surface in the surrounding soil.
  • the perforations are present in circumferential patterns in the casing.
  • Suitable equipment for use in the method includes a pump being used to bring the reinforcing material into the casing.
  • tubing provided with a nozzle head is used to make the reinforcing material flow out through the perforations in the casing.
  • the casing is dividable in sections by seals or packers.
  • the cracks are formed using the reinforcing material.
  • the two separate steps of forming the cracks and forming the reinforcing objects are then effectively combined.
  • the cracks are formed using fracking liquids.
  • the reservoir is hardened, for example by Nitrogen injection, prior to forming the cracks.
  • the wellbore remains intact for production of the resources.
  • a pattern of reinforcing objects is defined around the adjacent wellbores creating a foundation platter.
  • a foundation platter can support a plurality of buildings, such as a village, while leaving enough space for flow movements in the reservoir.
  • FIG. 1 shows a schematic overview of a land area in which several well bores run in the direction of a reservoir, wherein the method according to the invention has been applied;
  • FIG. 2 schematically shows a cross section through part of a first reservoir, including a well bore, to illustrate a first embodiment of the method according to the invention
  • FIG. 3A schematically shows a cross section through part of a second reservoir, including a well bore, to illustrate a second embodiment of the method according to the invention in a first time period;
  • FIG. 3B schematically shows a cross section through the well bore of FIG. 3A to illustrate the second embodiment of the method according to the invention in a second time period;
  • FIG. 3C schematically shows a cross section through the well bore of FIG. 3A to illustrate the second embodiment of the method according to the invention in a third time period.
  • FIG. 1 shows a schematic overview of a production site for natural resources, such as hydrocarbons, in which several well bores B run from production wells P in the direction of a reservoir R. Parts D of the reservoir R are reinforced using the method according to the invention. A resulting foundation platter is created defining a pattern of reinforcing objects D around adjacent wellbores B. The dashed lines S indicate free space between the reinforcing objects D that leaves room flow movements of the hydrocarbons in the reservoir.
  • FIG. 2 schematically shows a cross section through a well bore B 1 of an underground reservoir R 1 that has permeable soil to illustrate a first embodiment of the method according to the invention.
  • FIGS. 3A through 3C schematically show a cross section through a well bore B 2 of an underground R 2 that has non-permeable soil to illustrate a second embodiment of the method according to the invention in different time periods.
  • a section is cut out and shown in more detail.
  • the well bore B 1 , B 2 comprises a casing 10 that is inserted into a recently drilled section of the wellbore.
  • the casing 10 is typically held into place with cementation 12 .
  • Casing 10 normally has a tubular shape receiving an internal elongate hollow tubing 11 that in the position of use runs in the direction of the reservoir.
  • An annulus A surrounds the tubing 11 and is itself surrounded by the well wall formed by the casing 10 and the cementation 12 .
  • WROP Wireline Retrievable Oil Production
  • a nipple 20 is shown.
  • the WROP system has been described in the international patent application WO2014/011043 of the same applicant.
  • WROP Wireline Retrievable Oil Production
  • Seals or packers 21 are present to close of sections of the casing 10 .
  • Perforations 14 connect the interior of the casing 10 with the surroundings of the casing 10 , i.e. the reservoir soil. Consequently, the perforations 14 also extend through the cementation 12 .
  • the perforations 14 are production perforations for production of resources, such as hydrocarbons.
  • additional perforations are made in the casing.
  • the additional perforations are alternate to the production perforations.
  • the preferred pattern for the perforations is a circumferential pattern.
  • the method according to the invention for counteracting land subsidence due to activities involving material transport, such as production of resources, through wellbores comprises the step of bringing reinforcing material into the casing 10 present in the wellbore B 1 or B 2 .
  • a pump may be used to bring the reinforcing material into the casing 10 .
  • the reinforcing material is made to flow out through the perforations 14 in the casing 10 to form a number of reinforcing objects D 1 respectively D 2 around the wellbore B 1 respectively B 2 .
  • Dedicated equipment provided with a nozzle head may be used.
  • Suitable reinforcing materials are injectable materials that will attach to the reservoir area and the outer well wall and will harden as a result of a reaction, for example a chemical reaction or a thermal reaction.
  • the reinforcing material may comprise grout, resin, such as epoxy resin, polyurethane resin or polyester resin, glass fibre, silicon rubber, starch or any combination thereof.
  • the reinforcing objects D are formed around a substantially horizontal part of the wellbore B.
  • a sliding sleeve valve 30 is used to control fluid flow between the tubing 11 and the annulus A.
  • Suitable sliding sleeve valves are known in the field of gas and oil exploration and production.
  • the wellbore When applying the method according to the invention the wellbore remains intact for production of the resources.
  • the resources flow out of the reservoir into the casing 10 in a direction of flow F that is substantially transverse to the casing 10 .
  • the reinforcing objects D 1 and D 2 As seen in the direction F the reinforcing objects D 1 and D 2 have a dome or arch shaped cross-section. As seen in longitudinal direction of the casing 10 the reinforcing objects D 1 and D 2 have a general ring shape or donut shape.
  • the first embodiment of the method according to the invention comprises the steps described above and is suitable for a reservoir R 1 of permeable soil, as illustrated in FIG. 2 .
  • the second embodiment comprises additional steps prior to the steps described above and is suitable for a reservoir R 2 of non-permeable soil, such as shale or rock, illustrated in FIGS. 3A-3C .
  • the method comprises the steps of forming cracks in the reservoir R 2 surrounding the wellbore B 2 and filling the cracks for forming the reinforcing objects.
  • the cracks can either be formed using the reinforcing material itself or using fracking liquids. Suitable fracking liquids comprise water and proppants, such as sand or plastic.
  • the reservoir R 2 may be hardened, for example by Nitrogen injection.
  • the fracked reservoir areas FR 2 are preferably alternately used for production of resources.
  • FIG. 3A as an example four fracked reservoir areas FR 2 are shown in a first time period of which the second and the fourth FR 2 (seen from left to right) are production areas and provided with arrows F.
  • the first and the third FR 2 passageways from the perforations 14 to the tubing 11 are closed by dedicated equipment.
  • An example of suitable equipment are sleeve valves or side doors 30 that are slideable over the outer surface of the tubing 11 , preferably under wireline control.
  • areas C are drawn to indicate closed passageways.
  • the areas C are imaginary areas and have no physical embodiment.
  • FIG. 3B shows the view of FIG. 3A in a second time period that is later than the first time period.
  • the second and the fourth FR 2 are no longer used as production areas, but have been transformed into reinforcing objects D 2 using the method according to the invention.
  • the passageways to perforations 14 are closed by dedicated equipment, for example the sleeve valves 30 . Now the first and the third FR 2 have become production areas.
  • FIG. 3C shows the view of FIG. 3B in a third time period that is later than the second time period.
  • the first and the third FR 2 are also no longer used as production areas, but have also been transformed into reinforcing objects D 2 using the method according to the invention.
  • the passageways to perforations 14 are closed by dedicated equipment, for example the sliding sleeve valves 30 .
  • Water can be injected into the thus treated well bore to use the well bore as heat exchanger for geothermal application.
  • a WROP-HEX is a Heat Exchanger Plug-in device 40 as described in WO2014/011043 is used.
  • the invention is based on the general inventive thought to actively reinforce a well bore running towards an underground reservoir using reinforcing material and transporting it through the well bore to form reinforcing objects around the well bore.
  • the reinforcing objects are formed by a combination of cavities and/or cracks filled with reinforcing material and/or reservoir formation, such as shale or rock. Consequently the reinforcing objects will have an arbitrary shape generally similar to a ring or a donut shape and generally having a dome shaped or arch shaped cross-section.
  • the invention has been illustrated in the context of reinforcing well bores on a hydrocarbon production site, the invention is not limited to well bores for transport of hydrocarbons or other materials out of an underground reservoir.
  • the method according to the invention can also be used to reinforce well bores used for transport of materials into an underground reservoir, for instance for the purpose of underground storage. Some examples of underground storage include disposal of nuclear waste or filling salt cavities with fluids.
  • the method according to the invention can then also be used to reinforce well bores used for (continuous) transport of materials into and out of an underground reservoir, for instance for geothermal applications.

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  • 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)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
US16/072,936 2016-01-29 2017-01-27 Method for counteracting land subsidence in the vicinity of an underground reservoir Abandoned US20190040712A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL2016185 2016-01-29
NL2016185A NL2016185B1 (en) 2016-01-29 2016-01-29 Method for counteracting land subsidence in the vicinity of an underground reservoir.
PCT/NL2017/050054 WO2017131520A1 (fr) 2016-01-29 2017-01-27 Procédé permettant de contrecarrer un affaissement de terrain au voisinage d'un réservoir souterrain

Publications (1)

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US20190040712A1 true US20190040712A1 (en) 2019-02-07

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US16/072,936 Abandoned US20190040712A1 (en) 2016-01-29 2017-01-27 Method for counteracting land subsidence in the vicinity of an underground reservoir

Country Status (7)

Country Link
US (1) US20190040712A1 (fr)
EP (1) EP3408495B1 (fr)
ES (1) ES2762158T3 (fr)
HU (1) HUE048324T2 (fr)
NL (1) NL2016185B1 (fr)
PL (1) PL3408495T3 (fr)
WO (1) WO2017131520A1 (fr)

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362477A (en) * 1964-11-13 1968-01-09 Chevron Res Method and apparatus for injecting fluids into earth formations penetrated by a well
US3421584A (en) * 1967-03-23 1969-01-14 Dow Chemical Co Grouting,plugging,and consolidating method
US3688507A (en) * 1969-03-13 1972-09-05 Donald Sinclair Muller Grouting
US3718189A (en) * 1969-07-30 1973-02-27 Exxon Production Research Co Consolidation of incompetent formations
US3849992A (en) * 1972-06-05 1974-11-26 Exchem Holdings Reinforcing elements for stabilization of rocks
US4134453A (en) * 1977-11-18 1979-01-16 Halliburton Company Method and apparatus for perforating and slotting well flow conductors
US5026215A (en) * 1988-12-02 1991-06-25 Geochemical Corporation Method of grouting formations and composition useful therefor
US5273115A (en) * 1992-07-13 1993-12-28 Gas Research Institute Method for refracturing zones in hydrocarbon-producing wells
US20020020528A1 (en) * 1998-07-23 2002-02-21 Mccabe Howard Wendell Method for sealing a well casing and surrounding strata
US20020057948A1 (en) * 2000-08-10 2002-05-16 Steinar Roald Multi grouting system
US20070114022A1 (en) * 2005-11-22 2007-05-24 Nguyen Philip D Methods of stabilizing unconsolidated subterranean formations
US20110011557A1 (en) * 2009-07-14 2011-01-20 Shelton Tommie Jr System to enable geothermal field interaction with existing hvac systems, method to enable geothermal field interaction with existing hvac system
US20120080190A1 (en) * 2010-10-01 2012-04-05 Rytlewski Gary L Zonal contact with cementing and fracture treatment in one trip
US20130133887A1 (en) * 2011-11-30 2013-05-30 Bradley L. Todd Methods for Initiating New Fractures in a Completed Wellbore Having Existing Fractures Present Therein
US20150144347A1 (en) * 2013-11-27 2015-05-28 Baker Hughes Incorporated System and Method for Re-fracturing Multizone Horizontal Wellbores
US20160245061A1 (en) * 2015-02-20 2016-08-25 Halliburton Energy Services, Inc. Fracturing tight subterranean formations with a cement composition
US20160290115A1 (en) * 2014-01-09 2016-10-06 Halliburton Energy Services, Inc. Re-fracturing a fracture stimulated subterranean formation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4437520A (en) * 1981-06-15 1984-03-20 In Situ Technology, Inc. Method for minimizing subsidence effects during production of coal in situ
DE602004008294D1 (de) * 2004-10-12 2007-09-27 Schlumberger Technology Bv Injektionsvorrichtung für Bohrlochinjektion einer aktivierten Flüssigkeit
US9909404B2 (en) * 2008-10-08 2018-03-06 The Lubrizol Corporation Method to consolidate solid materials during subterranean treatment operations
NL2009165C2 (en) 2012-07-10 2014-01-13 Steenmaat Beheer B V System and method for production of a primary fluid, such as oil, from an underground reservoir.
WO2016011327A2 (fr) * 2014-07-17 2016-01-21 Schlumberger Canada Limited Procédé de fracturation et de re-fracturation talon-pointe

Patent Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362477A (en) * 1964-11-13 1968-01-09 Chevron Res Method and apparatus for injecting fluids into earth formations penetrated by a well
US3421584A (en) * 1967-03-23 1969-01-14 Dow Chemical Co Grouting,plugging,and consolidating method
US3688507A (en) * 1969-03-13 1972-09-05 Donald Sinclair Muller Grouting
US3718189A (en) * 1969-07-30 1973-02-27 Exxon Production Research Co Consolidation of incompetent formations
US3849992A (en) * 1972-06-05 1974-11-26 Exchem Holdings Reinforcing elements for stabilization of rocks
US4134453A (en) * 1977-11-18 1979-01-16 Halliburton Company Method and apparatus for perforating and slotting well flow conductors
US5026215A (en) * 1988-12-02 1991-06-25 Geochemical Corporation Method of grouting formations and composition useful therefor
US5273115A (en) * 1992-07-13 1993-12-28 Gas Research Institute Method for refracturing zones in hydrocarbon-producing wells
US20020020528A1 (en) * 1998-07-23 2002-02-21 Mccabe Howard Wendell Method for sealing a well casing and surrounding strata
US20020057948A1 (en) * 2000-08-10 2002-05-16 Steinar Roald Multi grouting system
US20070114022A1 (en) * 2005-11-22 2007-05-24 Nguyen Philip D Methods of stabilizing unconsolidated subterranean formations
US7441598B2 (en) * 2005-11-22 2008-10-28 Halliburton Energy Services, Inc. Methods of stabilizing unconsolidated subterranean formations
US20110011557A1 (en) * 2009-07-14 2011-01-20 Shelton Tommie Jr System to enable geothermal field interaction with existing hvac systems, method to enable geothermal field interaction with existing hvac system
US20120080190A1 (en) * 2010-10-01 2012-04-05 Rytlewski Gary L Zonal contact with cementing and fracture treatment in one trip
US9206678B2 (en) * 2010-10-01 2015-12-08 Schlumberger Technology Corporation Zonal contact with cementing and fracture treatment in one trip
US20130133887A1 (en) * 2011-11-30 2013-05-30 Bradley L. Todd Methods for Initiating New Fractures in a Completed Wellbore Having Existing Fractures Present Therein
US20150144347A1 (en) * 2013-11-27 2015-05-28 Baker Hughes Incorporated System and Method for Re-fracturing Multizone Horizontal Wellbores
US20160290115A1 (en) * 2014-01-09 2016-10-06 Halliburton Energy Services, Inc. Re-fracturing a fracture stimulated subterranean formation
US20160245061A1 (en) * 2015-02-20 2016-08-25 Halliburton Energy Services, Inc. Fracturing tight subterranean formations with a cement composition
US9670762B2 (en) * 2015-02-20 2017-06-06 Halliburton Energy Services, Inc. Fracturing tight subterranean formations with a cement composition

Also Published As

Publication number Publication date
HUE048324T2 (hu) 2020-07-28
PL3408495T3 (pl) 2020-03-31
EP3408495B1 (fr) 2019-10-30
ES2762158T3 (es) 2020-05-22
WO2017131520A1 (fr) 2017-08-03
EP3408495A1 (fr) 2018-12-05
NL2016185B1 (en) 2017-08-10
NL2016185A (en) 2017-08-02

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