摘要:
Die Erfindung betrifft eine Erdbohrvorrichtung mit einer Bohrlafette und einem auf der Bohrlafette hin und her bewegbaren Schlitten, wobei zum Antrieb des Schlittens mindestens ein Zahnrad vorhanden ist, dessen Drehbewegung in eine Linearbewegung mittels einer Zahnstange umgewandelt wird, wobei ein Kraftentlastungspfad zum Entlasten des Zahnrads von einer radial eingeleiteten Kraft vorgesehen ist
摘要:
Systems and processes are provided for facilitating transfer of downhole devices through a reversibly sealable wellhead fixture capping a well under pressure, without jeopardizing operators, equipment, or the well itself. An open ended pressurizable vessel is provided that is sized and shaped to accommodate a substantial portion of a particular downhole device, such as a logging tool. The vessel includes a mating flange for coupling its open end to a reversibly sealable wellhead fixture. A pressure can be equalized between an internal cavity of the pressurizable vessel and the wellbore. Once the pressure has been equalized, a channel can be opened between the pressurizable vessel and the wellbore, allowing for transfer of the downhole device in a preferred direction, either into or out of the wellbore. One or more robotic systems can be provided to further expedite manipulation of at least one of the tool and the vessel.
摘要:
The invention is a new well drilling machine, in particular for drilling with single pipes, with supporting mast (M) provided with at least one drill head′ (R) for the rotation-translation movement of the drill pipe (A), a loader (C) for said pipes (A), hinged to the relative supporting frame (T), integral with the machine body, and wherein said loader (C) can be slanted from the non-operating position (1) to the operating position (2), in which said pipes (A) are further slanted with respect to ground level, and vice versa. The loader (C) comprises sliders (J, K) which run on parallel guides (S) and on which said pipes (A) rest transversally, wherein two or more long pins or bars (P) square to and integral with said sliders (J, .K) are positioned between adjacent pipes (A), and wherein the running of said sliders (J, K) causes the translation of said bars (P) and said pipes (A).
摘要:
The invention is a new well drilling machine, in particular for drilling with single pipes, with supporting mast (M) provided with at least one drill head′ (R) for the rotation-translation movement of the drill pipe (A), a loader (C) for said pipes (A), hinged to the relative supporting frame (T), integral with the machine body, and wherein said loader (C) can be slanted from the non-operating position (1) to the operating position (2), in which said pipes (A) are further slanted with respect to ground level, and vice versa. The loader (C) comprises sliders (J, K) which run on parallel guides (S) and on which said pipes (A) rest transversally, wherein two or more long pins or bars (P) square to and integral with said sliders (J, .K) are positioned between adjacent pipes (A), and wherein the running of said sliders (J, K) causes the translation of said bars (P) and said pipes (A).
摘要:
Bei einer Vorrichtung zum Bohren im Erdreich steht ein Schub-Zug-Gestänge, insbesondere ein aus einzelnen über jeweils eine Steckkupplung miteinander verbundenen Abschnitten bestehendes Leitergestänge (14) mit einem Schub-Zug-Antrieb (4) in Verbindung und lassen sich eine ortsfeste Sperrklinke (110) und eine in Längsrichtung des Gestänges verfahrbare, mit dem Antrieb verbundene Vorschubklinke (120) jeweils mit zwei einander entgegengesetzten Wirkrichtungen mit dem Gestänge in Wirkverbindung bringen, um das Gestänge (14) schrittweise vorwärts zu bewegen und nach jedem Bewegungsschritt vorübergehend zu arretieren.