EP0962624A1 - Dispositif pour fabrication et régénération des puits d'eau - Google Patents

Dispositif pour fabrication et régénération des puits d'eau Download PDF

Info

Publication number
EP0962624A1
EP0962624A1 EP98830348A EP98830348A EP0962624A1 EP 0962624 A1 EP0962624 A1 EP 0962624A1 EP 98830348 A EP98830348 A EP 98830348A EP 98830348 A EP98830348 A EP 98830348A EP 0962624 A1 EP0962624 A1 EP 0962624A1
Authority
EP
European Patent Office
Prior art keywords
slider
casing
tools
head
well
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.)
Withdrawn
Application number
EP98830348A
Other languages
German (de)
English (en)
Inventor
Francesco Palamara
Domenico Palamara
Sabina Palamara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IDROPALM Sas di Gattuso C and Co
Original Assignee
IDROPALM Sas di Gattuso C and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IDROPALM Sas di Gattuso C and Co filed Critical IDROPALM Sas di Gattuso C and Co
Priority to EP98830348A priority Critical patent/EP0962624A1/fr
Publication of EP0962624A1 publication Critical patent/EP0962624A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • E21B37/00—Methods or apparatus for cleaning boreholes or 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
    • 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
    • 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
    • E21B33/14—Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
    • 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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E21B43/112—Perforators with extendable perforating members, e.g. actuated by fluid means

Definitions

  • the present invention relates to a device for making or regenerating water wells.
  • the construction of water wells involves the carrying out of a number of operations in a precise order which, with the currently available equipment, comprise the preparation of the fore well, the execution of the borehole and the lining of the borehole with blind pipes and filtering pipes.
  • filtering pipes windowed pipes are used which are available on the market and are industrially manufactured in series, with a standardized filtering port composed of slots delimited by the wall of the pipe and by the edges of portions of the wall which are raised with respect to its perimetral profile.
  • the cross section of the passage of standard windowed pipes is normally smaller than that which for each individual case would be optimal, thus decreasing the amount of water the well can deliver.
  • a borehole of desired depth for the well is formed in successive steps, by cementing a first borehole and then making a new borehole in the cemented one with a smaller drill bit reaching a greater depth; the new borehole is then also cemented and so on, until reaching the desired depth.
  • the cementing carried out in this manner does not, however, ensure adequate isolation, since, as a result of the vibrations induced by the formation of the various boreholes, the cement lining can yield or crack.
  • the object of the present invention is to provide a device for making or regenerating water wells which makes it possible to avoid the above-mentioned inconveniences of the known techniques.
  • a particular object of the present invention is to provide a device of the above-mentioned type which makes it possible to form the filtering windows, with an aperture suited to the average granulometry of the terrain, directly on the already installed casing, and to ensure, in any case, the correct placement of the filtering surface of the pipe in the aquifer stratum as well as a filtering cross section of optimal size.
  • a further object of the present invention is to provide a device of the above-mentioned type which makes it possible to deliver a cementitious slurry or drainage materials to preestablished regions surrounding the filtering section of the casing, and allows for the reduced use of said materials and producing technically perfect results.
  • a further object of the present invention is to provide a device of the above-mentioned type which makes it possible to regenerate existing wells which are either on their way to being exhausted due to a variation of the level of the aquifer formation or which have been abandoned because of incorrect placement of the filtering section or breakage or damage of the casing.
  • the device for making or regenerating water wells whose main feature is that it comprises a operating head with angularly equispaced radial seats in which respective punch tools for forming holes, windows or shaped cuts in the wall of the casing are slidingly housable, means for driving said operating head from the mouth of the well to a position at a preestablished depth inside the casing so that the radial seats are orthogonal to the wall of the casing itself and operating means integral with the operating head to axially move the punch tools to and from the wall of the casing, within the respective radial seats.
  • Different types of punch tools can be mounted in an interchangeable way on the operating head.
  • Said tools are suited in particular to form filtering windows on the casing, or to form passages through the casing for dispensing cementitious slurry, drainage gravel or other useful materials to the hollow space between the casing and the wall of the hole.
  • the punch tools are moved by means of a slider which is slidable inside the operating head in a direction orthogonal to the axes of the tools.
  • the tools are slidingly connected to the slider according to inclined directions with respect to the sliding axis of the slider and converge at a common point on said axis, so that an axial movement of the slider produces a corresponding axial sliding of the punches in an orthogonal direction.
  • the device according to the invention is generally indicated with 1 in figure 1 and comprises a substantially cylindrical operating head 2, on the side surface of which radial tubular seats 3 are formed which are spaced at equal angular distance from one another, as well as an actuating device 5 axially extending from the operating head and fixed to head 2 by means of respective connection flanges 2a and 5a.
  • Actuator 5 is in turn axially fixed to a operating rod 6 by means of respective connection flanges 5b and 6a.
  • the device according to the invention is shown in greater detail in figure 2 wherein it is illustrated inside a casing 7 of a well.
  • operating head 2 it is composed of a tubular body 8 coaxial to the axis of the device, connected at one end to actuator 5 and having in correspondence with the other end an annular expansion 9 wherein radial seats 3 are formed, communicating with the inside of tubular body 8.
  • the annular expansion 9 has a tubular housing 4 which is coaxial with, and of equal internal diameter to, tubular body 8 and is fixed to annular expansion 9 through a flanged end 4a.
  • a slider 10 integral with the piston rod of actuator 5 is slidingly mounted inside tubular body 8.
  • the actuator is of a double-acting type, ducts 11 and 12, respectively for the feeding and the discharge of an actuating fluid, being provided.
  • slider 10 can slide in both directions inside tubular body 8 and in housing 4 which is aligned thereto, between two run-end positions, a first one determined by its abutment with flange 2a and a second one by its abutment with an adjustment screw 13 located on the bottom of housing 4, by means of which it is possible to sharply adjust the maximum run of slider 10.
  • slider 10 has angularly spaced longitudinal grooves 14 on its surface (in figures 4 to 6 only one groove is indicated for simplicity). Each groove 14 increases in depth from one end of slider 10 to the other, and a substantially T-shaped channel 15 is formed on the bottom of each groove.
  • the number of grooves 14 formed along slider 10 depends on the diameter of the slider itself and, correspondingly, of operating head 2. In any case, the number of grooves 14 is equal to the number of radial seats 3 formed in operating head 2, and each groove 14 is formed in correspondence with one of said radial seats 3.
  • special punch tools of different forms, in accordance with the function they have to perform, are slidingly mounted.
  • One of these tools is shown in a longitudinal view in figures 9 and 10 and is indicated at 16. It is designed to form special windows on the surface of the casing and, for that purpose, it has an oblique cutting end 16a, whereas the opposite end has a substantially T-shaped protrusion 17 with the same cross section as channel 15 formed on the bottom of grooves 14 of slider 10.
  • T-shaped protrusion 17 has the same inclination as the bottom of grooves 14, so that, engaging it inside a corresponding channel 15, tool 16 is restrained to slide with respect to slider 10. Since tool 16 is in turn forced to slide inside corresponding radial seat 3, and as a consequence of the inclination of channels 15 with respect to the axis of slider 10, it slides forward and backward in respective radial seat 3 following a corresponding axial sliding of slider 10 inside tubular body 8 of operating head 2 driven by actuator device 5.
  • two flattened portions 31 are formed on diametrically opposite sides, reducing the cross section of the tool to a width equal to that of groove 14 in order to allow it to slide inside the groove.
  • the axial length of said flattened portions 31 is at least equal to the maximum depth of groove 14 in order to prevent size interferences during the sliding of slider 10.
  • Figure 3 shows an enlarged view of a portion of operating head 2 on which a hollow tool 18 is mounted, usable for the cementing of the well as will be described hereinafter.
  • the use of hollow tool 18 requires that operating head 2 has a couple of annular chambers 19 and 20 formed above annular expansion 9 and coaxial to tubular body 8 of operating head 2.
  • the two chambers 19 and 20 communicate by means of ducts 21 and 22 with respective feeding means of water and fluid cementitious slurry external to the well.
  • the run carried out by tool 16 or 18 is determined by the inclination of channel 15 and by the run of slider 10.
  • the maximum extension of the tool out of corresponding seat 3 must allow the tool to carry out the desired operation (hole, window or cut of various types) on the wall of casing 7.
  • slider 10 progressively enters housing 4 until it reaches the bottom end of its stroke which is determined by adjustment screw 13.
  • Tool 18, shown in figure 3 makes ballasting and cementing possible as well as the passage of water or any other material necessary to work in the hollow space between the casing and the hole.
  • two radial passages 23 and 24 are formed which, when the tool is in its position of maximum extension from seat 3, are aligned with corresponding discharge ducts 25 and 26 formed on annular expansion 9 of operating head 2 in correspondence with chambers 19 and 20. In this way, the chambers are put in communication with internal chamber 27 of tool 18.
  • tool 18 is made in two portions screwed to one another to allow for all the lathe machining of the internal surfaces.
  • internal chamber 27 of tool 18 has a widened intermediate portion filleted with the two end portions of smaller width by means of frusto-conical wall portions.
  • a spherical plug 28 having a diameter substantially equal to that of the portions of chamber 27 with a smaller diameter closes the communication between the two chambers for water 19 and cementitious slurry 20, with plug 28 being held in position by means of a flexible laminar member 29 protruding from the wall of chamber 27 in correspondence with the point of connection between the two halves of tool 18.
  • operating rod 6 is of a tubular form so that it can function as a manifold for the material such as the pebble gravel to be fed to the operating head.
  • the device according to the present invention makes it possible to carry out in situ a series of operations for the realization of a well which is currently impossible according to prior art methods, while drastically decreasing costs and construction time and significantly increasing the possibilities of using the well for the purposes for which it is intended.
  • the procedure for building a well can be the following:
  • the device according to the present invention makes it possible, therefore, to carry out the following operations:
  • a operating head with six tools is considered particularly adequate, since it allows to open six windows at a time and a small angular or axial shifting is sufficient to prepare the device for the forming of six more windows adjacent to the previous ones or at a different level from the same.
  • a goniometer and a measuring chord are associated to the device according to the invention making it possible to carry out the above-mentioned movements with the desired precision.
  • a particularly advantageous feature of the device according to the invention consists in its high operational speed both in the execution of building works as well as in the restoration of wells. In fact, it is characterized by the fact that it makes it extremely easy to access the hollow space between the casing and the borehole wall to carry out necessary operations as well as to quickly close the passage again. In this way, it is possible to restore the quo ante state of the stratification broken during the formation of the hole and, therefore, to inhibit the phenomenon of percolation and intercommunication between the strata which is the main cause of pollution.
  • the device according to the present invention can be easily disassembled for normal maintenance and substitution of tools. While a circular cross section of the operating head 2 is the easiest to conceive of, it is clear that, for the purposes of the invention, a polygonal cross section can also be used.

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)
  • Earth Drilling (AREA)
EP98830348A 1998-06-04 1998-06-04 Dispositif pour fabrication et régénération des puits d'eau Withdrawn EP0962624A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98830348A EP0962624A1 (fr) 1998-06-04 1998-06-04 Dispositif pour fabrication et régénération des puits d'eau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98830348A EP0962624A1 (fr) 1998-06-04 1998-06-04 Dispositif pour fabrication et régénération des puits d'eau

Publications (1)

Publication Number Publication Date
EP0962624A1 true EP0962624A1 (fr) 1999-12-08

Family

ID=8236675

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98830348A Withdrawn EP0962624A1 (fr) 1998-06-04 1998-06-04 Dispositif pour fabrication et régénération des puits d'eau

Country Status (1)

Country Link
EP (1) EP0962624A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002090711A3 (fr) * 2001-05-04 2003-01-09 Weatherford Lamb Procede et appareil de colmatage d'un puits de forage
WO2012069634A1 (fr) * 2010-11-26 2012-05-31 Welltec A/S Élément poinçon de fond de trou
DK201500557A1 (en) * 2015-09-23 2017-04-18 Estate 2010 Aps Method and tools for sealing of annulus between borehole and well casing.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE277802C (fr) *
US1785419A (en) * 1928-04-15 1930-12-16 Roscoe Moss Company Well-casing perforator
US1789995A (en) * 1926-11-03 1931-01-27 Barkis Bruce Casing cutting and pulling tool
US2381929A (en) * 1940-09-06 1945-08-14 Schlumberger Marcel Well conditioning apparatus
US2638801A (en) * 1948-06-21 1953-05-19 Ralph J Klaasen Casing perforator
US4158388A (en) * 1977-06-20 1979-06-19 Pengo Industries, Inc. Method of and apparatus for squeeze cementing in boreholes
US4640362A (en) * 1985-04-09 1987-02-03 Schellstede Herman J Well penetration apparatus and method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE277802C (fr) *
US1789995A (en) * 1926-11-03 1931-01-27 Barkis Bruce Casing cutting and pulling tool
US1785419A (en) * 1928-04-15 1930-12-16 Roscoe Moss Company Well-casing perforator
US2381929A (en) * 1940-09-06 1945-08-14 Schlumberger Marcel Well conditioning apparatus
US2638801A (en) * 1948-06-21 1953-05-19 Ralph J Klaasen Casing perforator
US4158388A (en) * 1977-06-20 1979-06-19 Pengo Industries, Inc. Method of and apparatus for squeeze cementing in boreholes
US4640362A (en) * 1985-04-09 1987-02-03 Schellstede Herman J Well penetration apparatus and method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002090711A3 (fr) * 2001-05-04 2003-01-09 Weatherford Lamb Procede et appareil de colmatage d'un puits de forage
US6595289B2 (en) 2001-05-04 2003-07-22 Weatherford/Lamb, Inc. Method and apparatus for plugging a wellbore
GB2393198A (en) * 2001-05-04 2004-03-24 Weatherford Lamb Combined perforation and cement retainer tool for plugging a wellbore
GB2393198B (en) * 2001-05-04 2005-02-23 Weatherford Lamb Method and apparatus for plugging a wellbore
WO2012069634A1 (fr) * 2010-11-26 2012-05-31 Welltec A/S Élément poinçon de fond de trou
CN103228863A (zh) * 2010-11-26 2013-07-31 韦尔泰克有限公司 井下冲压部件
RU2592001C2 (ru) * 2010-11-26 2016-07-20 Веллтек А/С Компонент скважинного пробойника
AU2016200992B2 (en) * 2010-11-26 2017-07-06 Welltec A/S Downhole punch component
US9976368B2 (en) 2010-11-26 2018-05-22 Welltec A/S Downhole punch component
DK201500557A1 (en) * 2015-09-23 2017-04-18 Estate 2010 Aps Method and tools for sealing of annulus between borehole and well casing.

Similar Documents

Publication Publication Date Title
US3974886A (en) Directional drilling tool
US6131675A (en) Combination mill and drill bit
US5564503A (en) Methods and systems for subterranean multilateral well drilling and completion
US4190124A (en) Stabilizer and blade attachment means therefor
US20190249509A1 (en) Packer Sealing Element with Non-Swelling Layer
US11365596B2 (en) Downhole valve spanning a tool joint and methods of making and using same
WO2007008947A1 (fr) Crepine equipee d'un sifflet deviateur
NO20170186A1 (en) Reamer
CA2605659A1 (fr) Procede et dispositif destines a ameliorer la formation et la reentree de puits multilateral
US20100252331A1 (en) Methods for forming boring shoes for wellbore casing, and boring shoes and intermediate structures formed by such methods
US4282942A (en) Underreamer with ported cam sleeve upper extension
EP0962624A1 (fr) Dispositif pour fabrication et régénération des puits d'eau
US6092594A (en) Device for making or regenerating a water well
CA2708591A1 (fr) Procedes et appareil de construction et de completion d'un puits de forage
CA3135113C (fr) Outil de fond de trou pour cimenter un trou de forage
CA2914295C (fr) Appareil et methode servant a generer des impulsions de pression de fluide dans un trou de forage
EP0367240B1 (fr) Adaptateur pour trains de tiges de forage avec passage d'air contrôlable
EP2823143B1 (fr) Appareil et procédé de complétion d'un puits de forage
US6439323B1 (en) Seismic shothole reaming module
US4192378A (en) Port valve isolation packer
US11619100B2 (en) Expandable cutting tool
CN2237163Y (zh) 多功用地下造孔机
US20240141732A1 (en) Adjustable reamer
US20180155988A1 (en) Method of drilling a borehole in an earth formation
RU2208120C1 (ru) Скважинный расширитель

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): ES FR GR IT PT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20000508

AKX Designation fees paid

Free format text: ES FR GR IT PT

AXX Extension fees paid

Free format text: AL PAYMENT 20000508

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

17Q First examination report despatched

Effective date: 20040809

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20041221