摘要:
An electrical coupling system for use in a wellbore that enables insertion and removal of an electrically operated device in a wellbore includes an electrical receptacle mounted at a selected axial position along a tubing disposed in the wellbore. The receptacle includes at least one insulated electrical conductor coupled to an electrical contact inside the receptacle and extending to the well surface. An electrical coupler is disposed on an exterior of the electrically operated device. The coupler includes at least one electrical contact disposed proximate the receptacle contact when the coupler is mated to the receptacle. The coupler including at least one flow passage enabling wellbore fluid flow from below the coupler to an annular space between the electrically operated device and an interior of the tubing.
摘要:
A device for use in the selective movement of a well tool in or through at least a portion of a pipe string. The portion of the pipe string being provided with a plurality of electromagnets which are arranged to produce a magnetic field in order to move the well tool within the portion of the pipe string by means of magnetic influence on the well tool. A method for selective movement of a well tool in or through at least a portion of a pipe string.
摘要:
A method and system for completing a well below the bottom of a body of water includes assembling a completion string at a location away from a location of the wellbore, moving the assembled completion string to the location of the wellbore and inserting the assembled completion string into the wellbore.
摘要:
A guide tool for mounting onto a downhole tool for use in a wellbore penetrating subsurface formations is provided. The guide tool has a bull nose. The bull nose has a first section with an end for sealing against and engaging a lower end of the downhole tool and a second section axially deflectably coupled to the first section.
摘要:
Pump systems for installation in a wellbore and associated methods are disclosed. The pump system includes one or more internal safety valves that may include a closure mechanism, a biasing mechanism, and an actuator.
摘要:
A weighing arrangement includes an infeed for product material to be weighed and at least one dosing mechanism for controlled conveying of product material portions from the infeed to a weighing system. The dosing mechanism includes a motor-driven transport screw formed as a helically-shaped rod positioned in an open trough for conveying the product material from the infeed to the weighing system, and a control unit for controlling the motor in order to deliver a desired portion of product material to the weighing system. This weighing arrangement provides a gentle, well-defined conveyance of product materials that are not suited for vibrational conveyance or conveyance by a screw conveyor in a tubular housing.
摘要:
Pin and box elements for the separable connection of the ends of the respective halves of a slide fastener are applied by deflecting the coupled stringer previously provided with the slider, at an angle to enable the elements to be threaded through the window onto respective edges in the shadow of the deflected stretch of the band.
摘要:
A wellbore pump includes a pump housing suspendible in a wellbore at ends of at least one of a power fluid line and a fluid discharge line. The pump housing includes a fluid inlet proximate a bottom end thereof and wherein the fluid discharge line is coupled proximate a top end thereof. The pump include valves for directing flow of wellbore fluid out of the housing when power fluid displaces fluid in the housing, the valves for directing flow of wellbore fluid into the housing when power fluid pressure is relieved.
摘要:
A wellbore pump includes a pump housing suspendible in a wellbore at ends of at least one of a power fluid line and a fluid discharge line. The pump housing includes a fluid inlet proximate a bottom end thereof and wherein the fluid discharge line is coupled proximate a top end thereof. The pump include valves for directing flow of wellbore fluid out of the housing when power fluid displaces fluid in the housing, the valves for directing flow of wellbore fluid into the housing when power fluid pressure is relieved.
摘要:
An electrically-enabled semi-stiff wellbore rod and guide nose system is provided, the system including at least one electrical cable disposed in a semi stiff wellbore intervention rod, a termination housing having one end connected to the end of the rod, the termination housing containing fiber optic sensors and the at least one electrical cable, a crossover connected to the other end of the termination housing, a ported coupling connected to the end of the crossover on one end of the ported coupling and having a lower termination for connection to devices on the other end of the ported coupling, where the at least one electrical cable extends through the interior of the crossover from the termination housing and to the ported coupling, one or several pressure-tight tubing(s) surrounding the at least one electrical cable in the interior of the crossover, where the at least one electrical cable is not in pressure communication with the interior of the interior of the crossover, the at least one electrical cable terminating for electrically connectable reception by devices at the lower termination.