摘要:
A wellbore valve includes a valve operator arranged to move axially along an interior of the wellbore, the valve operator arranged to operate a valve. A valve actuator is disposed proximate the valve operator. The valve actuator is arranged to move from one longitudinal position to another. A linear magnetic gear is coupled at an input element thereof to the valve actuator. The gear is coupled at an output element thereof to the valve operator such that motion of the valve actuator is transferred to the valve operator.
摘要:
A wellbore motor includes a means for converting flow of fluid in the wellbore into rotational energy. A magnetic gear member is operatively coupled at an input thereof to the means for converting. A wellbore rotary tool is coupled to an output of the magnetic gear member.
摘要:
A test stand has a base supporting standards on which are mounted a crossbar and an adjustably locatable header. The header supports an actuator for raising and lowering the crossbar which holds V-blocks for engaging the handles of an impact or impact-rotary tool and which applies downward pressure to the tool. The tool chuck is fitted to the top of a guide rod whose lower end passes with a sliding fit through a disc to which it is keyed and bears against a piston in an hydraulically pressurized cylinder. Sensors detect rotation of the disc and movement of the piston to provide information to a computer as to impact energy and rotary speed. A manifold fitted with sensors for temperature, pressure, and flow rate supplies operating air to the tool. The computer includes a database with stored information as to past history of the tool and the manufacturer's recommended operating specifications to which the measured data is compared.
摘要:
An orienting and circulating sub is disclosed for connection in an apparatus for angular drilling in the earth. The drilling apparatus comprises a drill string extending into a substantially vertical well bore in the earth supporting a fluid operated motor and drill bit at its lower end. The drill bit is supported for angular drilling by either using a bent sub for supporting the drilling motor or be using a drilling motor with a bent housing. A surveying tool is connected above the motor for determining and controlling the direction of drilling. A mule shoe keying sub is connected to the surveying tool for orienting the position of the motor in relation to said surveying tool. The orienting sub comprises a tubular housing formed in two sections threaded together with one end connected to the surveying tool by the mule shoe keying sub and the other end connected to the bent sub or to the bent motor housing. The orienting sub has a sleeve mounted in the end of the lower housing section with a key for receiving the mule shoe for locating the sub in relation to the surveying tool. The sleeve is oriented in the housing by a system of fine grooves and splines on the sub section and on the sleeve which permit fine angular adjustment. A modified Baker float valve is positioned in the lower end of the tool with a flapper check valve. A piston valve with shear pin is provided to open a bypass valve for draining the drill string during lifting.
摘要:
A conveyor 4 driven by a motor 5 feeds thermoplastic waste material 2, such as the trimmed-off edges of extruded plastics sheets, to a compression chamber 8 at the inlet of a heating box 10 of an extruder 11. The conveyor operates intermittently in synchronism with the movement of a plunger 40 operated by a hydraulic cylinder 42 which compresses the waste material to the level of a restraining member 50 controlled by a pneumatic cylinder 54. The member 50 comes into operation as the plunger 40 reaches the bottom of its stroke and holds the plastics material in a compressed condition while the plunger 40 rises again, further material 2 is fed to the chamber 8 and the cycle is repeated, the member 50 being withdrawn shortly before the plunger 40 reaches the bottom of its stroke. Plastics material is progressively melted as it passes down the box 10 and under the pressure exerted by the compressed material is extruded through a die plate 16 in the form of strands 18 which, after passing through a water bath 20, are chopped into granules 35 by a rotary cutter 34 and fall into a bin 36 ready for re-use.
摘要:
A flexible steering sub is disclosed for flexible drilling of horizontal oil and gas wells, horizontal storage wells, geothermal drilling for electric power generation; earth sciences study of and monitoring of earth movement with respect to fault movement; environmental science cleaning up of inaccessible polluted areas; coring to test rock strength prior to large scale constructions such as dams; introduction of chemicals for solution mining logging while drilling short radius well bores, and the like. The flexible sub comprises an elongated housing having a plurality of housing sections connectable at one end to an orientation sub for a PDM drill and connectable at the other end to a wire line connector. An electronics assembly including guidance directional guided sensors, directional probe and logging while drilling probe is positioned in a plurality of the housing sections, interconnected electrically, and connected at one end to the wire line connector. An articulated sinker bar and an articulated housing section spaced along the length of the housing and operable to bend in preference to bending of the housing sections containing the electronics assemblies. The steering sub is operable during drilling to bend along its length at the said articulated sinker bar and said articulated housing section on a short radius without bending the electronics assembly.
摘要:
A wine cask accessory comprising a shaped plate (1) having a pair of depending leg portions (2,3) disposed on either side of the shaped opening (4) having an innermost portion (5) which is shaped to receive the most common sizes of wine cask valve (V), the leg portions (2,3) on the opening (4) being dimensioned such that the leg portions project below the bottom of the wine cask (C) when the opening portion (5) is engaged with the valve (V) of the wine cask. The plate (1) may be formed with a crown sealed bottle opener (15, 16), a twist-off bottle cap opener (20, 21, 22), a can opener (12,13), a screw-top cap opener (17, 18, 19), a cork screw (23,24) and a plastic bottle cap remover (27, 28). The accessory functions to prevent displacement of the cask valve (V) inwardly of the container in use and the leg portions (2,3) engage the edge of a supporting surface to prevent movement of the cask with respect to the supporting surface.
摘要:
Long utility holes, for gas lines, electrical conduit, communications conduit and the like, may be bored or pierced horizontally through the earth, particularly under obstacles, such as buildings, streets, highways, rivers, lakes, etc. Such holes may be bored by an underground drilling mole (underground percussion drill) supported on a hollow drill rod and supplied with compressed air through the rod to operate an air hammer which strikes an anvil having an external boring face, preferably constructed to apply an asymmetric boring force. The drill rod is operated by a drill rig on the surface or recessed in special pit for horizontal drilling and provides for addition of sections of pipe or hollow rod as the boring progresses. The asymmetric boring force causes the boring path to curve and, when straight line drilling is needed, the drill rod is rotated to counteract the asymmetric boring force. An alternative boring tool utilizes an expander supported on a solid or hollow drill rod and having a base end supported on and larger in diameter than the rod and tapering longitudinally forward therefrom. It may have a uniform extension protruding a short distance forward. The tool penetrates the earth upon longitudinal movement of the drill rod.
摘要:
An insulated point gap assembly for a toroidal coupled telemetry system wherein a drill collar (38), operable to be connected to a lower portion of a drill string (32), carries a toroidal core having primary windings (88) and secondary windings (130). An aperture (154) is laterally fashioned through the drill collar. A conductor (150) is connected to one end of the secondary and extends through the aperture and the other end of the secondary is connected to the drill collar. The conductor is surrounded by an electrical insulation member (152). In a preferred embodiment, an axially extending sleeve of insulating material (156) is applied about the drill collar at the location of the conductor (150) to further isolate the conductor 15 from the drill collar.
摘要:
Testing apparatus for speedometers is disclosed including variable speed control driving means coupled to a flexible drive connection assembly that is adapted for connection with the speedometer. The drive connection assembly includes impulse generating means connected with a digital indicator for indicating the rotational rate of the cable assembly and for providing comparative readings of the indicator and the instrument being tested. The flexible drive assembly is adapted for connection with the flexible drive or the gear box coupling of the speedometer for checking the drive ratio upon rotation of the vehicle traction wheels when moving the vehicle a predetermined distance to determine the number of turns per unit of distance of the speedometer drive cable.