摘要:
The present invention relates to a downhole driving unit (11) for insertion into a well, comprising a driving unit housing (51), a hydraulic motor (23) comprising a hydraulic motor housing (93), a wheel assembly (90) comprising a stationary part (91) and a rotational part (92), the stationary part being connected with the driving unit housing and being rotatably connected with a rotational part, the wheel assembly comprising a wheel ring (99) for contacting an inner wall in the well and connected with or forming part of the rotations part. The wheel assembly further comprises the hydraullic motor (23) so that the stationary part and the rotational part constitute the hydraulic motor housing, the hydraulic motor comprising a rotatable section (84) connected with the rotational part for rotating part of the wheel assembly. Furthermore, the wheel assembly comprises a planetary gearing system (95) comprised in the hydraulic motor housing and the hydraulic motor comprises a rotatable section driving the wheel ring through the planetary gearing system. The invention furthermore relates to a downhole system comprising the driving unit and to use of such driving unit.
摘要:
The present invention relates to a navigation system for navigating a drill head out of or in collision with a casing in a first borehole. The system comprises a drill head drilling a second borehole; a drill string made of several tubulars mounted into one tubular string by means of a connection means, the drill head being mounted onto one end of the drill string; and a plurality of logging units arranged with one logging unit in or in relation to each connection means. Each logging unit comprises a data transmitter and a data receiver for sending and receiving data between the logging units; and a detector, at least one logging unit comprising an emitter. Furthermore, the invention relates to a navigation method using the navigation system.
摘要:
The present invention relates to a blowout preventer for being mounted on a well head, comprising a plurality of valves arranged in fluid communication with each other, connected and forming a tubular pipe. Furthermore, the invention relates to a launcher system, a well intervention module, a well intervention system and a well system.
摘要:
The present invention relates to wellbore surveillance system for obtaining fluid reservoir information data, such as the position and amount of gas, oil and/or water, while draining hydrocarbons from an oil or gas field via a casing in a wellbore in a formation, the casing having a vertical part near a top of the casing and an inner face, the system comprising a first sensor for measuring a content of gas, oil and/or water in the formation, and a second sensor for measuring a content of gas, oil and/or water in the formation.
摘要:
The present invention relates to a wellbore pumping system submerged into a wellbore for unloading liquid from a wellbore comprising well fluid, such as gas, having a wellbore pressure, comprising a pump having an inlet and an outlet, a tubing fluidly connected with the outlet of the pump, and a driving unit connected with and powered by a cable, such as a wireline, and having a rotatable drive shaft for driving the pump, wherein the pump is a reciprocating pump comprising at least one pumping unit having a first moving member displaceable in a housing for sucking well fluid into and out of a first chamber. Furthermore, the invention relates to a wellbore pumping method.
摘要:
A drilling tool (1) for drilling downhole, comprising a drilling head (2) in connection with a first portion (18) of the drilling tool, a driving unit (9) for driving the drilling head and the first portion forward in a longitudinal movement while drilling, and a feed control (19) for controlling the longitudinal movement of the drilling head.
摘要:
Drilling tool (1) for drilling a well downhole where fluid is surrounding the tool and where the tool has a housing (15) and is connected to an electrical conducting means, such as a wireline. The drilling tool has a drilling head (2) and a fluid cleaner (3) for removal of elements, such as debris and formation pieces, from the fluid while drilling downhole. The fluid cleaner has a chamber (4) and a filter (5) within the chamber for separation of the elements from the fluid. The tool further comprises a pump (8) for pumping the fluid into the chamber through an inlet (11) in the drilling head (2) and through the filter before entering the well again. Furthermore, the tool comprises a driving unit for driving the pump and the drilling head.
摘要:
The present invention relates to a scanning tool (1) for scanning an object downhole. The tool has a longitudinal axis and comprises an emitting device (2) for emitting radiation, a lens (3) for transmitting the radiation in a predetermined pattern (4) of radiation, and a receiving device (5). In a first position of the tool, the pattern of radiation is reflected on the object (6) to be scanned and the reflected radiation is received in the receiving device resulting in a first measurement.
摘要:
An anchor tool for anchoring a downhole tool within a casing, a well, or any other downhole, hollow space. The tool has a longitudinal tool body with a centre axis extending through the tool body in the centre of the body, a first recess, a second recess, a third recess, and a fourth recess in the tool body; and a first anchor, a second anchor, a third anchor, and a fourth anchor. The first anchor is provided in the first recess, and so forth, and the anchors are outwards movable in the recesses for anchoring the tool. Each anchor provided in the recesses extends through the tool body transverse to and across the centre axis and the anchors and the corresponding recesses are situated in the tool body for providing a symmetrical anchoring of the anchor tool.
摘要:
The invention relates to a sealing arrangement (100) for sealing a leak (21) in a casing (2) or for sealing off a production zone (1) where the casing having a circumference and perforations (3) is situated in a borehole (22) downhole, but with a distance to an inner wall of the borehole, creating an intervening space (4) there between. The sealing arrangement comprises a composition (5) for injection into the intervening space or into a leak in the casing, and a non-miscible net comprised in the composition after injection in order to fixate the injected composition in a predetermined position.