Abstract:
In one aspect, a downhole element for use in a wellbore with a wellbore fluid is disclosed, including a body formed from a dissolvable material to degrade at a first rate when exposed to the wellbore fluid, at least one cavity defined by the body, a degradation agent disposed within the at least one cavity, wherein the at least one cavity selectively releases the degradation agent and the degradation agent degrades the body at a second rate when exposed to the wellbore fluid and the dissolvable material.
Abstract:
A single trip coiled tubing conveyed Electronic Submersible Pump and packer deployment system including, a power coiled tubing string, an Electronic Submersible Pump (ESP) connected to the coiled tubing, and an interventionless packer operably connected to the ESP prior to running in a borehole. A method for deploying an Electronic Submersible Pump (ESP) including assembling an ESP to a length compensating device which itself is assembled to an interventionless packer together on a powered coiled tubing, running the assemblage to a target depth, and setting the packer.
Abstract:
A degradable seat arrangement consisting of a pusher; a cone having a tapered face; and a seal having a seal deformation face configured to contact the tapered face. A method for creating a seat in a borehole.
Abstract:
In one aspect, a degradable apparatus is disclosed, including: an inner core with a first degradation rate in a downhole environment; an outer sheath disposed around an outer extent of the inner core with a second degradation rate less than the first degradation rate in the downhole environment. In another aspect, a method of temporarily sealing a downhole zone is disclosed, including: providing an inner core with a first degradation rate in a downhole environment; providing an outer sheath disposed around an outer extent of the inner core with a second degradation rate less than the first degradation rate in the downhole environment; sealing the downhole zone with the outer sheath; exposing the outer sheath to the downhole environment; and exposing the inner core to the downhole environment.
Abstract:
In one aspect, degradable material is disclosed, including: a polyurethane component with a first degradation rate in a downhole environment; and a corrosive additive component with a second degradation rate that is higher than a first degradation rate in the downhole environment. In another aspect, a method of temporarily sealing a downhole zone is disclosed, including: providing a polyurethane component with a first degradation rate in a downhole environment; providing a corrosive additive component with a second degradation rate that is higher than a first degradation rate in the downhole environment; mixing the polyurethane component and the corrosive additive component to form a degradable material; sealing the downhole zone with the degradable material; exposing the degradable material to the downhole environment; and degrading the degradable material.
Abstract:
A packer arrangement for forming a seal between an inner tubular string and an outer tubular string in a borehole includes: an outer tubular string member defining an axial flowbore and having an associated packer setting mechanism; a packer device disposed at least partially within the outer tubular string member to form a seal against an inner tubular string, the packer device including a degradable layer for temporarily and at least partially protecting the packer device; an inner tubular string member to be disposed within the flowbore of the outer tubular string member; and an actuator carried on the inner tubular string member, the actuator being operable to actuate the packer setting mechanism to set the packer device against the inner tubular string.
Abstract:
An expandable packer or anchor is disclosed. It features a gripping device integral to or mounted in a sleeve over the mandrel. Upon expansion, a sealing element engages an outer tubular and the gripping device, such as wickers on slips, preferably digs into the outer tubular. The expansion is preferably by pressure and can incorporate pressure intensifiers delivered by slick line or wire line. Release is accomplished by a release tool, which is delivered on slick line or wire line. It stretches the anchor or packer longitudinally, getting it to retract radially, for release. The release tool can be combined with packers or anchors that have a thin walled feature in the mandrel, to release by pulling the mandrel apart.
Abstract:
A releasable locking assembly including a housing, a body defining a longitudinally extending flow bore having a first end and a second end disposed within the housing, a window defined through a radial wall of the body, a locking segment having an outer convex surface of a first radius defined by distance from a first axis, and an inner concave surface of a second radius defined by distance from a second axis different than the first axis, the locking segment disposed at least in part in the window, and a support member disposed within the body and moveable between a position where the support member drives the locking segment into engagement with the housing and a position where the support member unsupports the locking segment with regard to engagement with the housing.
Abstract:
A method of manufacturing a valve of a tool for use downhole includes changing a flow characteristic of the valve. A load is applied to a first nozzle secured in a housing of the valve via a first release member, wherein a magnitude of the load is greater than a release threshold of the first release member, to release the first release member. The first nozzle is removed from the housing, and a second nozzle is secured in the housing via a second release member.
Abstract:
A tubular includes an outer surface and an inner surface defining a passage. A plug is arranged in the tubular blocking the passage. The plug is formed from a disintegrating on demand (DOD) material. An ignition device is coupled to the plug. An excitation mechanism is selectively operatively associated with the ignition device. The excitation mechanism selectively activates the ignition device to break apart the plug.