E21B 7/20 - Enfoncement de tubages de revêtement ou de tubes dans les trous de forageForage et tubage simultanés des trous de forage
E21B 10/26 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs
E21B 10/32 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs à organes coupants expansibles
E21B 10/66 - Trépans caractérisés en ce qu'ils peuvent être, en tout ou partie, mis en place dans le trou de forage ou enlevés de celui-ci sans retirer le tube de forage l'élément coupant étant mobile à l'intérieur du tube de forage et déplaçable latéralement
2.
DRILL BIT AND METHOD FOR DRILLING HOLE FOR PIPE TO BE INSTALLED IN GROUND
Here is presented a drill bit (1) which includes a pilot bit (2) and a reamer. The pilot bit (2) includes a body (3) and a drilling surface (4). The drill bit (1) is arranged to provide a hole for a pipe to be installed in the ground. The reamer comprises at least one wing (7) which is turnably pivoted to the body (3) of the pilot bit (2) such that the wing (7), when turned to a drilling position, extends outside the outer circle of the body (3) of the pilot bit (2) and, when turned to a position turned forwards from the drilling position, the wing (7) does not extend outside the outer circle of the body (3) of the pilot bit (2).
E21B 10/26 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs
E21B 10/32 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs à organes coupants expansibles
E21B 7/20 - Enfoncement de tubages de revêtement ou de tubes dans les trous de forageForage et tubage simultanés des trous de forage
E21B 10/66 - Trépans caractérisés en ce qu'ils peuvent être, en tout ou partie, mis en place dans le trou de forage ou enlevés de celui-ci sans retirer le tube de forage l'élément coupant étant mobile à l'intérieur du tube de forage et déplaçable latéralement
A drilling unit for drilling a hole, wherein the drilling unit comprising a drilling head (1). Said drilling head (1) further comprising pulling means (2) for pulling a casing (7) into the hole, a pilot bit (3) for drilling a center hole, connecting means and a ring bit assembly (4) for reaming the center hole for the casing (7). Said ring bit assembly (4) being connected to said pilot bit (3) by the connecting means and to said casing (7) by the pulling means (2). Said ring bit assembly (4) comprising a carrier (5) comprising carrier coupling means (23) and a plurality of ring bit segments (6) movably attached to said carrier coupling means (23).
E21B 10/62 - Trépans caractérisés par des parties, p. ex. des éléments coupants, amovibles ou réglables
E21B 10/64 - Trépans caractérisés en ce qu'ils peuvent être, en tout ou partie, mis en place dans le trou de forage ou enlevés de celui-ci sans retirer le tube de forage
An arrangement and a method for installing a casing in a borehole are described. The arrangement includes a casing, a boring pipe, which is adapted within the casing, and the boring pipe includes flow channels for compressed air and a flushing medium. The flushing medium flow channel is arranged to lead the flushing medium to the bottom of the borehole. The arrangement also includes a percussion hammer, which includes a compressed air operated percussion piston adapted in a cylinder of the percussion hammer, as well as hole drilling means for drilling a hole for the casing. The flushing medium flow channel is adapted to bypass the percussion piston or which flushing medium flow channel is adapted to pass through the percussion piston, and in which arrangement the drilling means additionally includes splines transmitting a rotating motion and adapted to conduct the compressed air that used the percussion piston through the splines.
E21B 1/30 - Forage par percussion avec un organe d'impulsion à mouvement alternatif l'organe d'impulsion étant un piston entraîné directement par la pression d'un fluide par pression d'air, de vapeur ou de gaz
A drilling unit for drilling a hole, wherein the drilling unit comprising a drilling head (1). Said drilling head (1) further comprising pulling means (2) for pulling a casing (7) into the hole, a pilot bit (3) for drilling a center hole, connecting means and a ring bit assembly (4) for reaming the center hole for the casing (7). Said ring bit assembly (4) being connected to said pilot bit (3) by the connecting means and to said casing (7) by the pulling means (2). Said ring bit assembly (4) comprising a carrier (5) comprising carrier coupling means (23) and a plurality of ring bit segments (6) movably attached to said carrier coupling means (23).
E21B 10/32 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs à organes coupants expansibles
E21B 7/20 - Enfoncement de tubages de revêtement ou de tubes dans les trous de forageForage et tubage simultanés des trous de forage
E21B 10/62 - Trépans caractérisés par des parties, p. ex. des éléments coupants, amovibles ou réglables
E21B 10/64 - Trépans caractérisés en ce qu'ils peuvent être, en tout ou partie, mis en place dans le trou de forage ou enlevés de celui-ci sans retirer le tube de forage
A drilling unit for drilling a hole, wherein the drilling unit comprising a drilling head (1). Said drilling head (1) further comprising pulling means (2) for pulling a casing (7) into the hole, a pilot bit (3) for drilling a center hole, connecting means and a ring bit assembly (4) for reaming the center hole for the casing (7). Said ring bit assembly (4) being connected to said pilot bit (3) by the connecting means and to said casing (7) by the pulling means (2). Said ring bit assembly (4) comprising a carrier (5) comprising carrier coupling means (23) and a plurality of ring bit segments (6) movably attached to said carrier coupling means (23).
E21B 7/20 - Enfoncement de tubages de revêtement ou de tubes dans les trous de forageForage et tubage simultanés des trous de forage
E21B 10/32 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs à organes coupants expansibles
E21B 10/62 - Trépans caractérisés par des parties, p. ex. des éléments coupants, amovibles ou réglables
E21B 10/64 - Trépans caractérisés en ce qu'ils peuvent être, en tout ou partie, mis en place dans le trou de forage ou enlevés de celui-ci sans retirer le tube de forage
An arrangement and a method for installing a casing in a borehole. The arrangement (100) comprises a casing (1), a boring pipe (2) which is adapted within the casing (1), the boring pipe (2) comprising flow channels for compressed air (3) and a flushing medium (4). The flushing medium flow channel (4) is arranged to lead the flushing medium to the bottom (B) of the borehole. The arrangement (100) further comprises a percussion hammer (5) which comprises a compressed air operated percussion piston (6) adapted in a cylinder (9) of the percussion hammer, as well as hole drilling means (8) for drilling a hole for the casing (1). The flushing medium flow channel (4) is adapted to bypass the percussion piston (6) or which flushing medium flow channel (4) is adapted to pass through the percussion piston (6), and in which arrangement the drilling means (8) additionally comprise splines (28) transmitting a rotating motion and adapted to conduct the compressed air that used the percussion piston (6) through the splines (28).
E21B 7/20 - Enfoncement de tubages de revêtement ou de tubes dans les trous de forageForage et tubage simultanés des trous de forage
E21B 10/38 - Trépans à percussion caractérisés par des canaux ou des buses pour les fluides de forage
E21B 17/18 - Tubes comprenant plusieurs passages pour les fluides
E21B 21/12 - Procédés ou appareils pour nettoyer les trous de forage par jet de fluide, p. ex. en utilisant l'air d'échappement du moteur utilisant des tubes de forage comprenant plusieurs passages pour les fluides, p. ex. systèmes en circuit fermé
An arrangement and a method for installing a casing in a borehole. The arrangement (100) comprises a casing (1), a boring pipe (2) which is adapted within the casing (1), the boring pipe (2) comprising flow channels for compressed air (3) and a flushing medium (4). The flushing medium flow channel (4) is arranged to lead the flushing medium to the bottom (B) of the borehole. The arrangement (100) further comprises a percussion hammer (5) which comprises a compressed air operated percussion piston (6) adapted in a cylinder (9) of the percussion hammer, as well as hole drilling means (8) for drilling a hole for the casing (1). The flushing medium flow channel (4) is adapted to bypass the percussion piston (6) or which flushing medium flow channel (4) is adapted to pass through the percussion piston (6), and in which arrangement the drilling means (8) additionally comprise splines (28) transmitting a rotating motion and adapted to conduct the compressed air that used the percussion piston (6) through the splines (28).
E21B 21/12 - Procédés ou appareils pour nettoyer les trous de forage par jet de fluide, p. ex. en utilisant l'air d'échappement du moteur utilisant des tubes de forage comprenant plusieurs passages pour les fluides, p. ex. systèmes en circuit fermé
An arrangement and method for installing a casing. The arrangement (100) comprises a casing (1 ), a bar part (2) adapted rotatable inside the casing, the arrangement further comprising a borer (6) which comprises a blade part (15) to release material, the borer (6) being adapted at a distal end (5) of the bar part and to be rotated with the bar part (2), as well as a reamer (8) adapted movably to the distal end of the casing (1 ) so that the reamer (8) has a free travel (F) in the direction of the longitudinal axis (X) of the casing.
E21B 7/20 - Enfoncement de tubages de revêtement ou de tubes dans les trous de forageForage et tubage simultanés des trous de forage
E21B 10/44 - Trépans avec une partie transporteuse hélicoïdale, p. ex. trépans du type à visTarières avec une partie pilote ou des parties amovibles
E21B 7/00 - Procédés ou matériels particuliers pour le forage
E21B 10/40 - Trépans à percussion avec une partie pilote
E21B 10/64 - Trépans caractérisés en ce qu'ils peuvent être, en tout ou partie, mis en place dans le trou de forage ou enlevés de celui-ci sans retirer le tube de forage
E02D 7/30 - Mise en place de pieux creux ou de tubages par moyens disposés à l'intérieur des pieux ou des tubages par noyaux de battage
A drilling device for drilling a hole in the ground and/or rock and having in its drilling head a plurality of drilling wing bits arranged at equal distribution with their mutual position being adjustable such that the wing bits are located within a minimum diameter dimension and, on the other hand, adjustable such that they are located to drill a hole with a maximum size diameter and that the drilling device is arranged to pull, during drilling, a protective pipe into the hole at least when drilling the hole in the ground. An outer circumference of the wing bits includes a circumferential groove arranged to receive a ring belonging to a front part of the protective pipe, to an inner surface thereof, when the wing bits are adjusted to a diameter size substantially larger than the minimum diameter dimension in order to pull the protective pipe via the wing bits.
E21B 10/32 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs à organes coupants expansibles
E21B 7/20 - Enfoncement de tubages de revêtement ou de tubes dans les trous de forageForage et tubage simultanés des trous de forage
E21B 10/66 - Trépans caractérisés en ce qu'ils peuvent être, en tout ou partie, mis en place dans le trou de forage ou enlevés de celui-ci sans retirer le tube de forage l'élément coupant étant mobile à l'intérieur du tube de forage et déplaçable latéralement
A drilling device for drilling a hole in the ground and/or rock and having in its drilling head a plurality of drilling wing bits (2) arranged at equal distribution with their mutual position being adjustable such that said wing bits (2) are located within a minimum diameter dimension and, on the other hand, adjustable such that they are located to drill a hole with a maximum size diameter and that the drilling device is arranged to pull, during drilling, a protective pipe (7) into the hole at least when drilling the hole in the ground. An outer circumference of said wing bits (2) includes a circumferential groove (5) arranged to receive a ring (8) belonging to a front part of the protective pipe (7), to an inner surface thereof, when said wing bits (2) are adjusted to a diameter size substantially larger than the minimum diameter dimension in order to pull the protective pipe (7) by means of said wing bits.
E21B 7/20 - Enfoncement de tubages de revêtement ou de tubes dans les trous de forageForage et tubage simultanés des trous de forage
E21B 10/32 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs à organes coupants expansibles
E21B 10/66 - Trépans caractérisés en ce qu'ils peuvent être, en tout ou partie, mis en place dans le trou de forage ou enlevés de celui-ci sans retirer le tube de forage l'élément coupant étant mobile à l'intérieur du tube de forage et déplaçable latéralement
E21B 17/046 - AccouplementsJoints entre tige et trépan, ou entre tiges avec nervures, goupilles ou mâchoires et rainures complémentaires ou similaires, p. ex. accrochage à baïonnette
A drilling device for drilling a hole in the ground and/or rock and having in its drilling head a plurality of drilling wing bits (2) arranged at equal distribution with their mutual position being adjustable such that said wing bits (2) are located within a minimum diameter dimension and, on the other hand, adjustable such that they are located to drill a hole with a maximum size diameter and that the drilling device is arranged to pull, during drilling, a protective pipe (7) into the hole at least when drilling the hole in the ground. An outer circumference of said wing bits (2) includes a circumferential groove (5) arranged to receive a ring (8) belonging to a front part of the protective pipe (7), to an inner surface thereof, when said wing bits (2) are adjusted to a diameter size substantially larger than the minimum diameter dimension in order to pull the protective pipe (7) by means of said wing bits.
E21B 7/20 - Enfoncement de tubages de revêtement ou de tubes dans les trous de forageForage et tubage simultanés des trous de forage
E21B 10/32 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs à organes coupants expansibles
E21B 10/66 - Trépans caractérisés en ce qu'ils peuvent être, en tout ou partie, mis en place dans le trou de forage ou enlevés de celui-ci sans retirer le tube de forage l'élément coupant étant mobile à l'intérieur du tube de forage et déplaçable latéralement
E21B 17/046 - AccouplementsJoints entre tige et trépan, ou entre tiges avec nervures, goupilles ou mâchoires et rainures complémentaires ou similaires, p. ex. accrochage à baïonnette
A hammering and rotatable drill bit, which is meant for ground and rock drilling includes a hollow shaft having a hole that is adjusted to direct flushing air onto the drilling surface to the front of the drill bit and further from there towards the outer edge of the drill bit. the drill bit includes a drilling part which protrudes from the surface of the drill bit, functions as a drill point and drills the mid-area of the hole to be created wherein the mentioned part is adjusted to prevent the flushing flow from flowing directly through the mentioned hole located inside the shaft onto the drilling surface. The mentioned part is arranged to allow the outlet of the flushing flow in a sideways direction to the grooves belonging to the drilling surface, which grooves lead to the edge of the drill bit, and is arranged to allow the outlet also partly to the front of the drill bit to the drilling surface by adjusting the groove, which leads to the edge of the drill bit, to start from the mentioned part from such a distance (d) from the center line (L) of the drill bit which distance (d) is less than the radius (R) of the hole.
E21B 10/38 - Trépans à percussion caractérisés par des canaux ou des buses pour les fluides de forage
E21B 10/40 - Trépans à percussion avec une partie pilote
E21B 10/26 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs
E21B 4/06 - Moyens de percussion mis en œuvre au fond du trou, p. ex. marteaux
Hammering and rotatable drill bit (1), which is meant for ground and rock drilling, said drilling device comprising a hollow shaft (2), said shaft having a hole (3) which is adjusted to direct flushing air onto the drilling surface to the front of the drill bit (1) and further from there towards the outer edge of the drill bit (1) wherein the drill bit (1) comprises a drilling part (5) which protrudes from the surface of the drill bit, functions as a drill point and drills the mid-area of the hole to be created wherein the mentioned part (5) is adjusted to prevent the flushing flow from flowing directly through the mentioned hole (3) located inside the shaft (2) onto the drilling surface. The mentioned part (5) is arranged to allow the outlet of the flushing flow in a sideways direction to the grooves (6) belonging to the drilling surface which grooves lead to the edge of the drill bit (1) and is arranged to allow the outlet also partly to the front of the drill bit to the drilling surface by adjusting the groove (6), which leads to the edge of the drill bit (1), to start from the mentioned part (5) from such a distance (d) from the centre line (L) of the drill bit (1) which distance (d) is less than the radius (R) of the hole.
brevets
