摘要:
In one configuration, the present invention is directed to a method and system for extracting hydrocarbons from a hydrocarbon-containing deposit. One or more underground excavations designed to at least partially cave in are used to increase the permeability of the deposit.
摘要:
The method and the driving shield for driving of non-circular cross-section consist of front cutting heads of the shield (2a till 2j) fixated to the bearing body that carry out the hole with the shape of conjuction of circles by rotating and moving in the direction of the tunnelling of the driving shield and just after that the final shape of tunnel cross-section is carried out by removal of rest of the face and by creating concave or concave and planar surfaces which are perpendicular to surfaces of the hole made by rotating of the finishing cutting heads (8a till 8k) of the driving shield. The axis of rotating of each finishing cutting head (8a till 8k) is non-intersectoral to axes of rotating of the front cutting heads (2a till 2j).
摘要:
An inline mounting assembly (100) for a TBM cutter assembly (115) includes first and second housing mounts (120), having upper and lower ear portions (121), and an inline channel (123) sized to receive an end of the cutter assembly. The housing mounts include a first guide (122) and a second guide (124) defining forward and rearward abutment faces. A wedge assembly (130) includes a bolt that extends through the first guide and engages a wedge (132) configured to clamp the cutter shaft (117) to the housing mount. A back support assembly includes a clamp block (142) that abuts the rearward abutment face, a bridge block (143) that abuts the forward abutment face, and a bolt that extends through the blocks. The bridge block abuts the shaft to provide support.
摘要:
Ce système de maintenance (21), pour un tunnelier (1), comprend un garage (23) et un robot de préhension (45), qui comprend : - un socle (47), par l'intermédiaire duquel le robot de préhension est solidairement lié au garage, - une chaîne cinématique motorisée (49, 55, 57, 71, 79, 83, 87, 89, 105), et - un organe de préhension d'une pièce d'usure de tunnelier lié au socle par l'intermédiaire de la chaîne cinématique, cette dernière définissant la position de l'organe de préhension dans l'espace. La chaîne cinématique comprend bras coudé (89) qui constitue un membre rigide conçu pour évoluer au travers de l'ouverture avant, un premier rotateur de tangage qui supporte et entraîne le bras coudé en rotation par rapport au socle (47), et un deuxième rotateur de tangage qui supporte et entraîne en rotation une fraction avant de la chaîne cinématique qui relie le bras coudé à l'organe de préhension.
摘要:
L'invention concerne un procédé de remplacement d'une molette (1) montée avec précontrainte dans un boîtier (2) solidaire de la tête de coupe d'un tunnelier, mis en œuvre avec une molette (1) portant solidairement un élément (4) de verrouillage dans le boîtier (2) et des moyens (5) de précontrainte, comprenant les étapes de : a) retrait d'une molette (1) usagée dudit boîtier (2) : • bridage, sur le boîtier (2), d'un dispositif de manipulation (3) de la molette (1), • préhension de la molette, • libération de la précontrainte, • déverrouillage, • extraction de la molette (1), • débridage du dispositif (3), b) mise en place d'une molette (1) de remplacement dans l'ordre inverse.
摘要:
The present invention discloses a method for installing, operating and servicing wells in a hydrocarbon deposit from a lined shaft and/or tunnel system that is installed above, into or under a hydrocarbon deposit. The entire process of installing the shafts and tunnels as well as drilling and operating the wells is carried out while maintaining isolation between the work space and the ground formation. In one aspect of the invention, well-head devices may be precast into the tunnel or shaft lining to facilitate well installation and operation in the presence of formation pressure and/or potential fluid in-fiows. In another aspect of the invention, the tunnel itself can be used as a large diameter well for collecting hydrocarbons and, if required, for injecting steam or diluents into a formation to mobilize heavy hydrocarbons such as heavy crude and bitumen.