Patent classifications
E21B23/03
Downhole tool with long projecting extension
A downhole tool for projecting a projectable element downhole includes a tool body having a radial bore, a projectable element forming a piston in the radial bore, the projectable element having first and second element parts. In the retracted position the projectable element and the second bore part define an annular cavity, a hollow base part having an open end and a closed end, the open end extending into the open first end of the projectable element forming a chamber. The open end of the hollow base part has at least one spring element arranged in the chamber and connected to the closed first end of the projectable element and to the closed end of the hollow base part for retraction of the projectable element, and a pump configured to pump fluid into the chamber via a fluid channel to project the projectable element.
Downhole tool with long projecting extension
A downhole tool for projecting a projectable element downhole includes a tool body having a radial bore, a projectable element forming a piston in the radial bore, the projectable element having first and second element parts. In the retracted position the projectable element and the second bore part define an annular cavity, a hollow base part having an open end and a closed end, the open end extending into the open first end of the projectable element forming a chamber. The open end of the hollow base part has at least one spring element arranged in the chamber and connected to the closed first end of the projectable element and to the closed end of the hollow base part for retraction of the projectable element, and a pump configured to pump fluid into the chamber via a fluid channel to project the projectable element.
Mechanical isolation device, systems and methods for controlling fluid flow inside a tubular in a wellbore
Systems and methods include a mechanical isolation device that comprises a sleeve, which includes a port for fluid flow between an internal bore of the sleeve and an inside of a tubular. A receiver positioned in the internal bore includes a first orifice at a first axial location on the receiver, and a second orifice at a second axial location on the receiver. The second orifice is either aligned or un-aligned with the port of the sleeve. The receiver is slidable within the sleeve to: (i) move the first orifice into alignment with the port and either move the second orifice out of alignment with the port or keep the second orifice out of alignment with the port; and (ii) move the first orifice out of alignment with the port so that a portion of the receiver covers the port to block fluid flow between the internal bore of the sleeve and the port.
Mechanical isolation device, systems and methods for controlling fluid flow inside a tubular in a wellbore
Systems and methods include a mechanical isolation device that comprises a sleeve, which includes a port for fluid flow between an internal bore of the sleeve and an inside of a tubular. A receiver positioned in the internal bore includes a first orifice at a first axial location on the receiver, and a second orifice at a second axial location on the receiver. The second orifice is either aligned or un-aligned with the port of the sleeve. The receiver is slidable within the sleeve to: (i) move the first orifice into alignment with the port and either move the second orifice out of alignment with the port or keep the second orifice out of alignment with the port; and (ii) move the first orifice out of alignment with the port so that a portion of the receiver covers the port to block fluid flow between the internal bore of the sleeve and the port.
GAS LIFT VALVE AGING PROCESS AND APPARATUS
A process for aging gas lift valves utilizing a controlled decompression to prevent damage to seals of the gas lift valves. The process includes pressuring one or more gas lift valves to a predetermined pressure (e.g., 5000 psig) and maintaining this pressure for a predetermined time (e.g. five minutes). After this time period, decompression is performed in discrete steps. For instance, the pressure of the pressure vessel may be reduced in predetermined pressure increments (i.e. reductions). After each pressure reduction, the reduced pressure is maintained for a predetermined time. This allows gasses and fluids within the elastomeric O-rings time to dissipate without causing damage to the seals.
MAGNETICALLY COUPLED SUBSURFACE CHOKE
Provided is a retrievable choke insert. The retrievable choke insert, in one aspect, includes an outer housing including a central bore extending axially through the outer housing, an open end, a closed end, and one or more outer housing openings extending through an outer housing sidewall thickness, and a bore flow management actuator disposed in the central bore, the bore flow management actuator having one or more bore flow management openings extending through a bore flow management actuator sidewall thickness, the bore flow management actuator operable to convey subsurface production fluids there through. The retrievable choke insert, in accordance with this aspect, further includes one or more choke insert magnets coupled to the bore flow management actuator, the one or more choke insert magnets configured to magnetically couple with one or more landing nipple magnets of a choke landing nipple to slide the bore flow management actuator and move the one or more bore flow management openings relative to the one or more outer housing openings to control an amount of the subsurface production fluid entering the bore flow management actuator.
MAGNETICALLY COUPLED SUBSURFACE CHOKE
Provided is a retrievable choke insert. The retrievable choke insert, in one aspect, includes an outer housing including a central bore extending axially through the outer housing, an open end, a closed end, and one or more outer housing openings extending through an outer housing sidewall thickness, and a bore flow management actuator disposed in the central bore, the bore flow management actuator having one or more bore flow management openings extending through a bore flow management actuator sidewall thickness, the bore flow management actuator operable to convey subsurface production fluids there through. The retrievable choke insert, in accordance with this aspect, further includes one or more choke insert magnets coupled to the bore flow management actuator, the one or more choke insert magnets configured to magnetically couple with one or more landing nipple magnets of a choke landing nipple to slide the bore flow management actuator and move the one or more bore flow management openings relative to the one or more outer housing openings to control an amount of the subsurface production fluid entering the bore flow management actuator.
METHOD OF CREATING AN ANNULAR ZONAL ISOLATION SEAL IN A DOWNHOLE ANNULUS
An isolation joint is provided with a downhole tubular that has an expandable section which, in axial direction, is sandwiched between a first separator section and a second separator section of the downhole tubular. The expandable section has a circumferential band of increased wall thickness compared to the wall thicknesses of the first and second separator sections. Furthermore, the downhole tubular is provided with a mating support at a predetermined axial location relative to said at least expandable section, adapted for mating with the local expander device within said downhole tubular. This mating support ensures transversal alignment with of a local expander device with the downhole tubular such that the local expansion exclusively is activated within the expandable section.
METHOD OF CREATING AN ANNULAR ZONAL ISOLATION SEAL IN A DOWNHOLE ANNULUS
An isolation joint is provided with a downhole tubular that has an expandable section which, in axial direction, is sandwiched between a first separator section and a second separator section of the downhole tubular. The expandable section has a circumferential band of increased wall thickness compared to the wall thicknesses of the first and second separator sections. Furthermore, the downhole tubular is provided with a mating support at a predetermined axial location relative to said at least expandable section, adapted for mating with the local expander device within said downhole tubular. This mating support ensures transversal alignment with of a local expander device with the downhole tubular such that the local expansion exclusively is activated within the expandable section.
System and method for reverse Y-tool bypass
A system and method for deploying a reverse Y-tool are provided. The system and method may include a first tubing branch in line with production tubing and a second tubing branch offset from the first tubing branch. The Y-tool system may also have a retrievable Electric Submersible Pump (ESP) and an orienting whipstock deployed in the first tubing branch. The orienting whipstock may direct other wellbore components to the second tubing branch. The radius of the second tubing branch is less than a radius of the first tubing branch. A reverse Y-tool mandrel is also provided that includes an upper head comprising an upper connection to production tubing, a middle body comprising a discriminating section profile, and a bottom section comprising a lower connection to production tubing and a lower connection to bypass tubing.