Various apparatus, a wellbore string incorporating the apparatus, and a computer-implemented method are described, whereby in various examples at least one flexible elongate member is guided from a wellbore string toward a wall of the wellbore for forming at least one lateral bore in a subsurface rock formation for stimulating the formation. The apparatus in such examples has at least one controllable body which is controllable, based upon a detected downhole configuration of the controllable body and/or the wellbore string, to be positioned with respect to the wellbore string for providing at least one exit through which the flexible elongate member is extractable from the wellbore string for extracting the flexible elongate member through the exit in a desired and/or preferred direction.
E21B 7/06 - Modification de la direction du trou de forage
E21B 7/18 - Forage par action de jets de liquides ou de gaz, avec ou sans entraînement de grenaille
E21B 17/20 - Tubes de forage flexibles ou articulés
E21B 41/00 - Matériel ou accessoires non couverts par les groupes
E21B 47/09 - Localisation ou détermination de la position d'objets dans les trous de forage ou dans les puitsIdentification des parties libres ou bloquées des tubes
2.
APPARATUS FOR FORMING LATERAL BORES IN SUBSURFACE ROCK FORMATIONS, WELLBORE STRING AND METHODS
Various apparatus, a wellbore string incorporating the apparatus, and a computer-implemented method are described, whereby in various examples at least one flexible elongate member is guided from a wellbore string toward a wall of the wellbore for forming at least one lateral bore in a subsurface rock formation for stimulating the formation. The apparatus in such examples comprises at least one controllable body which is controllable, based upon a detected downhole configuration of the controllable body and/or the wellbore string, to be positioned with respect to the wellbore string for providing at least one exit through which the flexible elongate member is extractable from the wellbore string for extracting the flexible elongate member through the exit in a desired and/or preferred direction.
Various apparatus, a wellbore string incorporating the apparatus, and a computer-implemented method are described, whereby in various examples at least one flexible elongate member is guided from a wellbore string toward a wall of the wellbore for forming at least one lateral bore in a subsurface rock formation for stimulating the formation. The apparatus in such examples comprises at least one controllable body which is controllable, based upon a detected downhole configuration of the controllable body and/or the wellbore string, to be positioned with respect to the wellbore string for providing at least one exit through which the flexible elongate member is extractable from the wellbore string for extracting the flexible elongate member through the exit in a desired and/or preferred direction.
A method and device are for making lateral openings out of a wellbore in a ground formation where at least one laterally directed drill string is movable in the axial direction inside a motherbore tubular, and where the leading end portion of the drill string is equipped with the drill bit that is driven by a rotatable drill string. The method includes connecting a fluid driven engine to the rotatable drill string inside the motherbore tubular, and directing flow in the motherbore tubular through the fluid driven engine to create rotation of the drill bit via the drill string.
E21B 4/02 - Moyens d'entraînement de type rotatif par fluide
E21B 4/16 - Moyens d'entraînement multiples au fond du trou, p. ex. pour le forage combiné par percussion et par rotationMoyens d'entraînement pour unités de forage à plusieurs trépans
E21B 7/06 - Modification de la direction du trou de forage
E21B 29/06 - Découpage de fenêtres, p. ex. découpage directionnel de fenêtres en vue d'opérations impliquant des sifflets-déviateurs
A method and device for making lateral openings (11) out of a wellbore (1) in a ground formation (2) where at least one laterally directed drill string (28) is movable in the axial direction inside a motherbore tubular (4), and where the leading end portion (16) of the drill string (28) is equipped with the drill bit (18) that is driven by a rotatable drill string (28), wherein the method includes: - connecting a fluid driven engine (22, 24, 26) to the rotatable drill string (28) inside the motherbore tubular (4); and - directing flow in the motherbore tubular (4) through the fluid driven engine (22, 24, 26) to create rotation of the drill bit (18) via the drill string (28).
E21B 4/16 - Moyens d'entraînement multiples au fond du trou, p. ex. pour le forage combiné par percussion et par rotationMoyens d'entraînement pour unités de forage à plusieurs trépans
E21B 7/06 - Modification de la direction du trou de forage
E21B 23/08 - Introduction ou circulation d'outils par pression de fluide, p. ex. systèmes d'outils mis en place par un courant de fluide
E21B 41/00 - Matériel ou accessoires non couverts par les groupes
E21B 43/26 - Procédés pour activer la production par formation de crevasses ou de fractures
6.
AN IMPROVED METHOD AND DEVICE FOR MAKING A LATERAL OPENING OUT OF A WELLBORE
A method and device for making lateral openings (11) out of a wellbore (1) in a ground formation (2) where at least one laterally directed drill string (28) is movable in the axial direction inside a motherbore tubular (4), and where the leading end portion (16) of the drill string (28) is equipped with the drill bit (18) that is driven by a rotatable drill string (28), wherein the method includes: - connecting a fluid driven engine (22, 24, 26) to the rotatable drill string (28) inside the motherbore tubular (4); and - directing flow in the motherbore tubular (4) through the fluid driven engine (22, 24, 26) to create rotation of the drill bit (18) via the drill string (28).
E21B 23/08 - Introduction ou circulation d'outils par pression de fluide, p. ex. systèmes d'outils mis en place par un courant de fluide
E21B 41/00 - Matériel ou accessoires non couverts par les groupes
E21B 43/26 - Procédés pour activer la production par formation de crevasses ou de fractures
E21B 4/16 - Moyens d'entraînement multiples au fond du trou, p. ex. pour le forage combiné par percussion et par rotationMoyens d'entraînement pour unités de forage à plusieurs trépans
E21B 7/06 - Modification de la direction du trou de forage
7.
METHOD AND DEVICE FOR PRODUCING AN OPENING FROM A MOTHERBORE AND INTO A FORMATION
A method and device for producing an opening (28) from a motherbore (1) into the surrounding formation (2), wherein the method includes: - positioning a motor (6), having a rotatable barrel (10), in the motherbore (4); - passing an elongated body (22) through the barrel (10); and letting the motor (6) rotate the elongated body (22) as the elongated body (22) is moved along the barrel (10) and into the formation (2).
A method and device for deploying a cable and an apparatus in a ground formation having a motherbore, wherein the method comprises positioning a non-rotating drill pipe, a cable and an apparatus in a motherbore tubular; and drilling a lateral opening relatively the motherbore by displacing the drill pipe into the formation with the cable and apparatus attached.
E21B 19/08 - Appareils pour faire avancer les tiges ou les câblesAppareils pour augmenter ou diminuer la pression sur l'outil de forageAppareils pour compenser le poids des tiges
E21B 7/18 - Forage par action de jets de liquides ou de gaz, avec ou sans entraînement de grenaille
9.
METHOD AND DEVICE FOR DEPLOYING A CABLE AND AN APPARATUS IN THE GROUND
A method and device for deploying a cable (12) and an apparatus (14) in a ground formation (2) having a motherbore (1), wherein the method includes: - positioning a non-rotating drill pipe (8), a cable (12) and an apparatus (14) in a motherbore tubular (4); - drilling a lateral opening (30) relatively the motherbore (1) by displacing the drill pipe (8) into the formation (2) with the cable (12) and apparatus (14) attached.
E21B 7/06 - Modification de la direction du trou de forage
E21B 7/18 - Forage par action de jets de liquides ou de gaz, avec ou sans entraînement de grenaille
E21B 23/03 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour mettre en place des outils sur les supports ou dans les retraits ou poches excentrées ou pour les en retirer
E21B 47/01 - Dispositifs pour supporter des instruments de mesure sur des trépans, des tubes, des tiges ou des câbles de forageProtection des instruments de mesure dans les trous de forage contre la chaleur, les chocs, la pression ou similaire