US20170314389A1 - Method for packaging components, assemblies and modules in downhole tools - Google Patents
Method for packaging components, assemblies and modules in downhole tools Download PDFInfo
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- US20170314389A1 US20170314389A1 US15/142,917 US201615142917A US2017314389A1 US 20170314389 A1 US20170314389 A1 US 20170314389A1 US 201615142917 A US201615142917 A US 201615142917A US 2017314389 A1 US2017314389 A1 US 2017314389A1
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- functional element
- channel
- opening
- tool
- conveyance device
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- 238000004806 packaging method and process Methods 0.000 title description 11
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Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/023—Arrangements for connecting cables or wirelines to downhole devices
- E21B17/025—Side entry subs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/14—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/081—Obtaining fluid samples or testing fluids, in boreholes or wells with down-hole means for trapping a fluid sample
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/084—Obtaining fluid samples or testing fluids, in boreholes or wells with means for conveying samples through pipe to surface
Definitions
- This disclosure relates generally to packaging components and assemblies in a work string used in a borehole.
- Oilfield wellbores are drilled by rotating a drill bit conveyed into the wellbore by a drill string.
- the drill string includes a drill pipe (tubing) that has at its bottom end a drilling assembly (also referred to as the “bottomhole assembly” or “BHA”) that carries the drill bit for drilling the wellbore.
- a suitable drilling fluid (commonly referred to as the “mud”) is supplied or pumped under pressure from a source at the surface down the tubing. Conventionally, the drilling fluid flows via a central flow bore along the tubing.
- the various components and assemblies that may be conveyed by the drill string are preferably housed in the annular body surrounding one or more flow bores. These flow bores may be centrally located or off-center.
- Traditional housing arrangements include cover sleeves, hatch covers, probe based, and mega frame packaging.
- wireline instruments are lowered into the wellbore by means of a wire. Wireline instruments carry equipment by similar technologies as referred to above.
- the present disclosure provides packaging arrangements that do not have the drawbacks of traditional packaging arrangements.
- the present disclosure provides an apparatus for use in a borehole.
- the apparatus may include a tool conveyed by a conveyance device.
- the tool has a body with a load bearing section, an outer surface defined by a diameter, a rotational axis, and a channel in the body extending from an opening at the outer surface. At least a part of the channel is inclined relative to the rotational axis of the body at the axial location of the opening in the body.
- the apparatus also includes at least one functional element disposed in the channel; and a conduit operatively connected to the at least one functional element transferring at least one of: (i) energy, (ii) a signal, (iii) a fluid, (iv) and formation material.
- the present disclosure also provides a method for using a tool adapted for a borehole.
- the apparatus may include a tool conveyed by a conveyance device.
- the tool has a body with a load bearing section, an outer surface defined by a diameter, a rotational axis, and a channel in the body extending from an opening at the outer surface. At least a part of the channel is inclined relative to the rotational axis of the body at the axial location of the opening in the body.
- the apparatus also includes at least one self-contained functional element disposed in the channel.
- FIG. 1 is a schematic illustration of one embodiment of a drilling system that may incorporate a communication system according to embodiments of the present disclosure
- FIGS. 2A and B schematically illustrate channels formed in a body with a load bearing section of a drill string according to embodiments of the present disclosure
- FIG. 3 schematically illustrates a functional element packaged in a channel according to one embodiment of the present disclosure used in conjunction with a valve actuation assembly
- FIG. 4 schematically illustrates a functional element packaged in a channel according to one embodiment of the present disclosure and used in conjunction with a valve actuation assembly.
- a “functional element” is a physical body or assembly that is designed to execute one or more pre-determined functions either at the surface or downhole.
- the executed function may be done autonomously or in response to a command signal.
- the functional device may be dynamic and move between a non-activated state and an activated state, or vice versa. This is contrasted with static devices such as bolts, hatches, and other inert structures.
- the teachings of the present disclosure may be used with any tool or section of a tool conveyed by a conveyance device into a wellbore/borehole.
- the conveyance device may be a rigid carrier such as jointed pipe including wired pipe, or a non-rigid carrier such as coiled tubing, wireline, slick-line, e-line, etc.
- a drill string will be used as an exemplary conveyance device in the discussion below.
- the system 10 includes a drill string 11 and a bottomhole assembly (BHA) 20 .
- the drill string 11 may be made up of a section of rigid tubulars (e.g., jointed tubular).
- the drill string 11 may be rotated by a top drive 24 or other suitable rotary power device.
- the BHA 20 includes a drill bit 26 , a steering unit 30 , a drilling motor 40 , a sensor sub 50 , a bidirectional communication and power module (BCPM) 60 , and a formation evaluation (FE) sub 70 .
- BCPM bidirectional communication and power module
- FE formation evaluation
- the BHA 20 may include active stabilizers, under-reamers, tractors, thrusters, downhole blow-out preventers, etc.
- a drilling fluid flows down a flow bore of the drill string 11 and flows up an annulus formed between the drill string 11 and a wall defining the wellbore 12 .
- a section 90 of the drill string 11 ( FIG. 1 ), which may be a drill pipe or any of the components making up the BHA 20 ( FIG. 1 ) or any other section of the drill string 11 .
- the section 90 has a body 89 with a load bearing section 92 and a flow bore 94 , which may be centrally positioned or off-center.
- the section 90 has a rotational axis 96 , which is one of the three major axes or principal axes of the tool.
- the rotational axis 96 may be the axis about which the section 90 rotates. If the section 90 does not rotate, then the rotational axis 96 may be an axis that bisects the section 90 .
- the rotational axis 96 may be aligned with the flow of fluid along the flow bore 94 .
- the tool section 90 has an outer surface 104 that is defined by a diameter. That is, the outer surface 104 extends axially a specified distance along a non-varying diameter. In some embodiments, the outer surface 104 may be considered a circumferential surface. As shown, the rotational axis 96 is parallel with the outer surface 104 .
- the teachings of the present disclosure provide enable the packaging of a functional element directly to the load bearing section 92 of a bottomhole assembly or other well tool. These packaging methods can provide greater flexibility in size, accessibility, and maintainability while keeping internal flow bore(s) 94 free. For example, the cross-sectional flow area of the flow bore 94 does not have to be reduced and flow does not have to be diverted from the central axis of the section 90 .
- a channel 100 may be formed in the load bearing section 92 for receiving one or more objects.
- load carrying region 92 it is meant the physical mass that bears and transfers compression, tension, bending and/or torsional loadings across the section 90 .
- the channel 100 may have an opening 102 that is accessible from outside of the section 90 . That is, the opening 102 is at least partially formed to penetrate the outer surface 104 of the section 90 . It should be noted that the end faces of the section 90 are not accessible as they connect to adjacent tools and are effectively inside the tool string or bottomhole assembly.
- the channel 100 may have circular cross-sectional profile.
- at least a portion of the length of the channel 100 is enclosed or covered by the outer surface 104 .
- a majority of the length of the channel 100 is enclosed or covered by the outer surface 104 .
- the channels according to the present disclosure may have various orientations, which are illustrated in FIGS. 2A-B using channels 100 , 110 , and 120 .
- the section 90 may be considered as having two non-parallel planes, such as a horizontal plane 106 and a vertical plane 108 , both of which are parallel with the rotational axis 96 .
- the channel 100 is inclined and is directed to the center of the section 90 .
- “inclined” means that the channel 100 has a longitudinal axis 103 that has a non-zero slope relative to the horizontal plane 106 but not orthogonal to the rotational axis 96 . That is, the incline is greater than zero and less than ninety degrees.
- the channel 100 may also be described as inclined and extending radially inward from the outer surface 104 ; i.e., that is the channel 100 extends at an angle greater than zero and less than ninety degrees from the outer surface 104 .
- at least a part of the channel 100 that is inclined is at the axial location of the opening 102 in the body 89 . That is, the inclination begins or terminates at the opening 102 .
- the channel 110 may be offset from the vertical plane 108 and extend radially downward in a straight line from the opening 112 .
- the longitudinal axis 113 ( FIG. 2A ) of the channel 110 has a component that is non-parallel with the horizontal plane 106 ( FIG. 2B ). This component is parallel with the vertical plane 108 .
- the channel 120 may be offset from the vertical plane 108 and extend radially downward in a straight line from the opening 122 a .
- the longitudinal axis 123 of the channel 120 has a component non-parallel with the horizontal plane 106 and a component non-parallel with the vertical plane 108 .
- Another difference is that channel 100 , 110 are “blind” holes.
- the channel 120 is different in that it extends all the way through the section 90 and can have a second opening 122 b on the outer surface 104 as shown in FIG. 2B .
- one or more passages may communicate with the channels 100 , 110 , 120 . These passages (not shown) may be used to convey wiring, hardware, fluid lines, etc. to the equipment in the channels 100 , 110 , 120 .
- the channels according to the present disclosure are susceptible to numerous variations.
- the channels can have non-circular cross sectional profile (not shown).
- a channel 130 may extend from an opening 132 formed at an inner surface 105 .
- An opening may also be formed at an end face 91 of a section 90 .
- the channels according to the present disclosure can be non-linear.
- a channel 134 may be curved to increase the available length for packaging a functional element.
- Still other channel geometries may use a slight deviation from a straight line to bring a functional element into intimate contact with the tool body to generate a pre-stress on the functional element.
- the channel and the functional element may have longitudinal axes that are not parallel along the whole length of the functional element when the functional element is in the channel.
- the functional element is in contact with the body, and the contact generates a pre-stress on the functional element.
- the channel may include composite geometries such as one or more linear segments and one or more non-linear segments (e.g., curved segments). These segments themselves may have different geometries (e.g., different slopes or curvatures).
- the channels according to the present disclosure may be contoured. For instances, the channels according to the present disclosure may have different channel diameters in different sections, which form a stepped diameter channel or may have other contours such as grooves, recesses, cavities or the like.
- a functional element may be operatively connected to a conduit 160 as shown in FIG. 4 .
- the conduit 160 can transfer to the functional element at least one of: (i) energy, (ii) a signal, (iii) a fluid, (iv) and formation material.
- the conduit 160 may include a media that transmits signals between the functional element 146 and a separate component (not shown).
- the signal may be data signals or energy.
- the signal carrier may be a cable, wire, fiber, or other solid media that conveys electromagnetic signals, optical signals, or acoustic signals.
- the signal carrier may also be a conduit such as tubing or a channel that conveys fluid based pressure signals. These signals may be used to convey data.
- the signal carrier may transmit energy in the form of electrical energy or pressurized fluid.
- the term “operatively connected” means that the functional element is energized via the connection and/or the functional element receives/transmits signals encoded with data via the connection.
- the functional element can be self-contained.
- self-contained it is meant that the functional element can perform one or more functions without an operative connection, as described above, that supplies power and/or data. That is, the functional element autonomously performs one or more functions downhole by using an on-board power supply and controls.
- non-linear or curved channels can be manufactured using drilling (standard), EDM (standard), ECM, metal forming, casting or additive manufacturing technologies.
- Channels (cavities) can also be created using more than one component; e.g., mandrel and sleeve having both 1 ⁇ 2 of the channel, split longitudinally, can form a channel when both pieces are assembled.
- valve actuation assembly 140 that may be used to control the flow of a borehole.
- the valve actuation assembly 140 has a body with a load bearing section 142 defined by an outer surface 144 . Channels, as discussed above, may be formed in the body 142 to house a functional element which by way of non-limiting example may be an electro-hydraulic actuator 146 .
- a functional element which by way of non-limiting example may be an electro-hydraulic actuator 146 .
- the electro-hydraulic actuator is shown before installation into the receiving channel.
- the electro-hydraulic actuator can be configured to make electrical connection (for power and communication) while being slid into the receiving channel. In other embodiments the electrical connection is made from hatch ports 147 after assembly of the electro-hydraulic actuator.
- a channel 150 is formed in the body 142 to house a functional element, such as the electro-hydraulic actuator 146 .
- the channel 150 has an opening 152 formed at the outer surface 144 and extends into the body 142 .
- the channel 150 has an orientation that causes it to be non-parallel with the rotational axis of the valve actuation assembly 140 .
- the actuator 146 is fixed in the body 142 in such a manner that fluid may flow across the body 142 via a centrally positioned flow bore 154 .
- channels according to the present disclosure may be used to package various types of functional elements.
- Functional elements can include tooling, instruments, and other kinds of mechanical, electro-mechanical, electric, electronic, hydraulic, or pneumatic equipment.
- such equipment may include signal-responsive actuators, electronics, sensors, batteries, energy emitting source (e.g., acoustic sources and radiation sources), hydraulic pumps, hydraulic actuators, electro-mechanical actuators, valves, vessels such as sample tanks to store formation material, including core barrels, or fluid reservoirs, antennas, fluid sampling tools, communication devices, steering ribs, active stabilizers, etc.
- a functional element may be powered electrically, hydraulically, or mechanically (e.g., using electricity, pressurized fluid, compressed springs, etc.) and controllable (e.g., responsive to control signals, and/or programmed).
- valve actuation assembly has been shown, it should be appreciated that a functional element may be used with any type of downhole tool, including, but not limited to, all types of reamers, anchoring tools, open-hole packers, casing packers, bridge plugs, string valves, bypass valves, (rotary) steering tools, tank carriers, pressure testing tools, sampling tools, coring tools, MWD sensor (seismic, resistivity, acoustic, gamma, NMR, etc.), pressure measurement devices, etc.
- downhole tool including, but not limited to, all types of reamers, anchoring tools, open-hole packers, casing packers, bridge plugs, string valves, bypass valves, (rotary) steering tools, tank carriers, pressure testing tools, sampling tools, coring tools, MWD sensor (seismic, resistivity, acoustic, gamma, NMR, etc.), pressure measurement devices, etc.
- a functional element packaged in an above-described channel is accessible without disassembling a downhole tool.
- a functional element may be inserted into the downhole tool after the downhole tool is assembled via the opening of the channel on the outer surface of the downhole tool.
- personnel can easily access the functional element without disturbing the joints, connections, or other portions of the downhole tool. That is, the downhole tool may be retrieved via the channel open and/or tools or instruments may be inserted through the channel opening to work on the functional element.
- the functional elements are packaged in a manner that does not obstruct the flow of drilling fluid through the central flow bore (e.g., flow bore 94 of FIG. 2A ) of the drill string 11 ( FIG. 1 ).
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Abstract
Description
- This disclosure relates generally to packaging components and assemblies in a work string used in a borehole.
- Oilfield wellbores are drilled by rotating a drill bit conveyed into the wellbore by a drill string. The drill string includes a drill pipe (tubing) that has at its bottom end a drilling assembly (also referred to as the “bottomhole assembly” or “BHA”) that carries the drill bit for drilling the wellbore. A suitable drilling fluid (commonly referred to as the “mud”) is supplied or pumped under pressure from a source at the surface down the tubing. Conventionally, the drilling fluid flows via a central flow bore along the tubing. Thus, the various components and assemblies that may be conveyed by the drill string are preferably housed in the annular body surrounding one or more flow bores. These flow bores may be centrally located or off-center. Traditional housing arrangements include cover sleeves, hatch covers, probe based, and mega frame packaging. For logging existing wellbores, wireline instruments are lowered into the wellbore by means of a wire. Wireline instruments carry equipment by similar technologies as referred to above.
- The present disclosure provides packaging arrangements that do not have the drawbacks of traditional packaging arrangements.
- In aspects, the present disclosure provides an apparatus for use in a borehole. The apparatus may include a tool conveyed by a conveyance device. The tool has a body with a load bearing section, an outer surface defined by a diameter, a rotational axis, and a channel in the body extending from an opening at the outer surface. At least a part of the channel is inclined relative to the rotational axis of the body at the axial location of the opening in the body. The apparatus also includes at least one functional element disposed in the channel; and a conduit operatively connected to the at least one functional element transferring at least one of: (i) energy, (ii) a signal, (iii) a fluid, (iv) and formation material.
- In aspects, the present disclosure also provides a method for using a tool adapted for a borehole. The apparatus may include a tool conveyed by a conveyance device. The tool has a body with a load bearing section, an outer surface defined by a diameter, a rotational axis, and a channel in the body extending from an opening at the outer surface. At least a part of the channel is inclined relative to the rotational axis of the body at the axial location of the opening in the body. The apparatus also includes at least one self-contained functional element disposed in the channel.
- Examples of certain features of the disclosure have been summarized (albeit rather broadly) in order that the detailed description thereof that follows may be better understood and in order that the contributions they represent to the art may be appreciated. There are, of course, additional features of the disclosure that will be described hereinafter and which will form the subject of the claims appended hereto.
- For detailed understanding of the present disclosure, reference should be made to the following detailed description of the preferred embodiment, taken in conjunction with the accompanying drawing:
-
FIG. 1 is a schematic illustration of one embodiment of a drilling system that may incorporate a communication system according to embodiments of the present disclosure; -
FIGS. 2A and B schematically illustrate channels formed in a body with a load bearing section of a drill string according to embodiments of the present disclosure; -
FIG. 3 schematically illustrates a functional element packaged in a channel according to one embodiment of the present disclosure used in conjunction with a valve actuation assembly; and -
FIG. 4 schematically illustrates a functional element packaged in a channel according to one embodiment of the present disclosure and used in conjunction with a valve actuation assembly. - The present disclosure provides arrangements and related methods for packaging “functional elements.” As used herein, a “functional element” is a physical body or assembly that is designed to execute one or more pre-determined functions either at the surface or downhole. The executed function may be done autonomously or in response to a command signal. Also, the functional device may be dynamic and move between a non-activated state and an activated state, or vice versa. This is contrasted with static devices such as bolts, hatches, and other inert structures. The teachings of the present disclosure may be used with any tool or section of a tool conveyed by a conveyance device into a wellbore/borehole. The conveyance device may be a rigid carrier such as jointed pipe including wired pipe, or a non-rigid carrier such as coiled tubing, wireline, slick-line, e-line, etc. Merely for convenience, a drill string will be used as an exemplary conveyance device in the discussion below.
- Referring initially to
FIG. 1 , there is schematically illustrated an elevation view of asystem 10 for the construction, logging, completion or work-over of awellbore 12. Thesystem 10 includes adrill string 11 and a bottomhole assembly (BHA) 20. In one embodiment, thedrill string 11 may be made up of a section of rigid tubulars (e.g., jointed tubular). Thedrill string 11 may be rotated by atop drive 24 or other suitable rotary power device. In one non-limiting embodiment, the BHA 20 includes adrill bit 26, asteering unit 30, adrilling motor 40, asensor sub 50, a bidirectional communication and power module (BCPM) 60, and a formation evaluation (FE)sub 70. In other configurations, the BHA 20 may include active stabilizers, under-reamers, tractors, thrusters, downhole blow-out preventers, etc. During drilling, a drilling fluid flows down a flow bore of thedrill string 11 and flows up an annulus formed between thedrill string 11 and a wall defining thewellbore 12. - Referring to
FIG. 2A , there is shown asection 90 of the drill string 11 (FIG. 1 ), which may be a drill pipe or any of the components making up the BHA 20 (FIG. 1 ) or any other section of thedrill string 11. Thesection 90 has abody 89 with aload bearing section 92 and aflow bore 94, which may be centrally positioned or off-center. Thesection 90 has arotational axis 96, which is one of the three major axes or principal axes of the tool. Therotational axis 96 may be the axis about which thesection 90 rotates. If thesection 90 does not rotate, then therotational axis 96 may be an axis that bisects thesection 90. In some embodiments, therotational axis 96 may be aligned with the flow of fluid along theflow bore 94. Thetool section 90 has anouter surface 104 that is defined by a diameter. That is, theouter surface 104 extends axially a specified distance along a non-varying diameter. In some embodiments, theouter surface 104 may be considered a circumferential surface. As shown, therotational axis 96 is parallel with theouter surface 104. - The teachings of the present disclosure provide enable the packaging of a functional element directly to the
load bearing section 92 of a bottomhole assembly or other well tool. These packaging methods can provide greater flexibility in size, accessibility, and maintainability while keeping internal flow bore(s) 94 free. For example, the cross-sectional flow area of theflow bore 94 does not have to be reduced and flow does not have to be diverted from the central axis of thesection 90. - Referring to
FIGS. 2A and B, achannel 100 may be formed in theload bearing section 92 for receiving one or more objects. Byload carrying region 92, it is meant the physical mass that bears and transfers compression, tension, bending and/or torsional loadings across thesection 90. Thechannel 100 may have anopening 102 that is accessible from outside of thesection 90. That is, theopening 102 is at least partially formed to penetrate theouter surface 104 of thesection 90. It should be noted that the end faces of thesection 90 are not accessible as they connect to adjacent tools and are effectively inside the tool string or bottomhole assembly. In one non-limiting embodiment, thechannel 100 may have circular cross-sectional profile. In one non-limiting embodiment, at least a portion of the length of thechannel 100 is enclosed or covered by theouter surface 104. In still other embodiments, a majority of the length of thechannel 100 is enclosed or covered by theouter surface 104. - The channels according to the present disclosure may have various orientations, which are illustrated in
FIGS. 2A- B using channels section 90 may be considered as having two non-parallel planes, such as ahorizontal plane 106 and avertical plane 108, both of which are parallel with therotational axis 96. - The
channel 100 is inclined and is directed to the center of thesection 90. As used herein, “inclined” means that thechannel 100 has alongitudinal axis 103 that has a non-zero slope relative to thehorizontal plane 106 but not orthogonal to therotational axis 96. That is, the incline is greater than zero and less than ninety degrees. Thechannel 100 may also be described as inclined and extending radially inward from theouter surface 104; i.e., that is thechannel 100 extends at an angle greater than zero and less than ninety degrees from theouter surface 104. In embodiments, at least a part of thechannel 100 that is inclined is at the axial location of theopening 102 in thebody 89. That is, the inclination begins or terminates at theopening 102. - The
channel 110 may be offset from thevertical plane 108 and extend radially downward in a straight line from theopening 112. Like thechannel 100, the longitudinal axis 113 (FIG. 2A ) of thechannel 110 has a component that is non-parallel with the horizontal plane 106 (FIG. 2B ). This component is parallel with thevertical plane 108. - The
channel 120 may be offset from thevertical plane 108 and extend radially downward in a straight line from the opening 122 a. Different from thechannels longitudinal axis 123 of thechannel 120 has a component non-parallel with thehorizontal plane 106 and a component non-parallel with thevertical plane 108. Another difference is thatchannel channel 120 is different in that it extends all the way through thesection 90 and can have asecond opening 122 b on theouter surface 104 as shown inFIG. 2B . Also, one or more passages (not shown) may communicate with thechannels channels - It should be appreciated that the channels according to the present disclosure are susceptible to numerous variations. The channels can have non-circular cross sectional profile (not shown). A
channel 130 may extend from anopening 132 formed at aninner surface 105. An opening may also be formed at anend face 91 of asection 90. Further, the channels according to the present disclosure can be non-linear. For example, achannel 134 may be curved to increase the available length for packaging a functional element. Still other channel geometries may use a slight deviation from a straight line to bring a functional element into intimate contact with the tool body to generate a pre-stress on the functional element. For instance, the channel and the functional element may have longitudinal axes that are not parallel along the whole length of the functional element when the functional element is in the channel. Thus, the functional element is in contact with the body, and the contact generates a pre-stress on the functional element. Also, the channel may include composite geometries such as one or more linear segments and one or more non-linear segments (e.g., curved segments). These segments themselves may have different geometries (e.g., different slopes or curvatures). In still other embodiments, the channels according to the present disclosure may be contoured. For instances, the channels according to the present disclosure may have different channel diameters in different sections, which form a stepped diameter channel or may have other contours such as grooves, recesses, cavities or the like. - In some embodiments, a functional element may be operatively connected to a
conduit 160 as shown inFIG. 4 . Theconduit 160 can transfer to the functional element at least one of: (i) energy, (ii) a signal, (iii) a fluid, (iv) and formation material. Theconduit 160 may include a media that transmits signals between thefunctional element 146 and a separate component (not shown). The signal may be data signals or energy. For instance, the signal carrier may be a cable, wire, fiber, or other solid media that conveys electromagnetic signals, optical signals, or acoustic signals. The signal carrier may also be a conduit such as tubing or a channel that conveys fluid based pressure signals. These signals may be used to convey data. Also, the signal carrier may transmit energy in the form of electrical energy or pressurized fluid. The term “operatively connected” means that the functional element is energized via the connection and/or the functional element receives/transmits signals encoded with data via the connection. - In other embodiments, the functional element can be self-contained. By self-contained, it is meant that the functional element can perform one or more functions without an operative connection, as described above, that supplies power and/or data. That is, the functional element autonomously performs one or more functions downhole by using an on-board power supply and controls.
- Without being bound to any particular manufacturing method, non-linear or curved channels can be manufactured using drilling (standard), EDM (standard), ECM, metal forming, casting or additive manufacturing technologies. Channels (cavities) can also be created using more than one component; e.g., mandrel and sleeve having both ½ of the channel, split longitudinally, can form a channel when both pieces are assembled.
- Referring now to
FIG. 3 , there is shown anvalve actuation assembly 140 that may be used to control the flow of a borehole. Thevalve actuation assembly 140 has a body with aload bearing section 142 defined by anouter surface 144. Channels, as discussed above, may be formed in thebody 142 to house a functional element which by way of non-limiting example may be an electro-hydraulic actuator 146. For visualization purposes the electro-hydraulic actuator is shown before installation into the receiving channel. By non limiting example, the electro-hydraulic actuator can be configured to make electrical connection (for power and communication) while being slid into the receiving channel. In other embodiments the electrical connection is made fromhatch ports 147 after assembly of the electro-hydraulic actuator. - Referring to
FIG. 4 , there is shown a section of any downhole tool, but for simplicity will be referred to thevalve actuation assembly 140 shown inFIG. 3 . Achannel 150 is formed in thebody 142 to house a functional element, such as the electro-hydraulic actuator 146. Thechannel 150 has anopening 152 formed at theouter surface 144 and extends into thebody 142. As described previously, thechannel 150 has an orientation that causes it to be non-parallel with the rotational axis of thevalve actuation assembly 140. It should be noted that theactuator 146 is fixed in thebody 142 in such a manner that fluid may flow across thebody 142 via a centrally positioned flow bore 154. - It should be appreciated that channels according to the present disclosure may be used to package various types of functional elements. Functional elements can include tooling, instruments, and other kinds of mechanical, electro-mechanical, electric, electronic, hydraulic, or pneumatic equipment. Merely by way of example, such equipment may include signal-responsive actuators, electronics, sensors, batteries, energy emitting source (e.g., acoustic sources and radiation sources), hydraulic pumps, hydraulic actuators, electro-mechanical actuators, valves, vessels such as sample tanks to store formation material, including core barrels, or fluid reservoirs, antennas, fluid sampling tools, communication devices, steering ribs, active stabilizers, etc. A functional element may be powered electrically, hydraulically, or mechanically (e.g., using electricity, pressurized fluid, compressed springs, etc.) and controllable (e.g., responsive to control signals, and/or programmed).
- Moreover, while a valve actuation assembly has been shown, it should be appreciated that a functional element may be used with any type of downhole tool, including, but not limited to, all types of reamers, anchoring tools, open-hole packers, casing packers, bridge plugs, string valves, bypass valves, (rotary) steering tools, tank carriers, pressure testing tools, sampling tools, coring tools, MWD sensor (seismic, resistivity, acoustic, gamma, NMR, etc.), pressure measurement devices, etc.
- It should be appreciated that the packaging arrangements using channels according to the present disclosure provide numerous advantages over the conventional packaging arrangements. First, a functional element packaged in an above-described channel is accessible without disassembling a downhole tool. Thus, for instance, a functional element may be inserted into the downhole tool after the downhole tool is assembled via the opening of the channel on the outer surface of the downhole tool. Also, when the downhole tool is retrieved from the borehole, personnel can easily access the functional element without disturbing the joints, connections, or other portions of the downhole tool. That is, the downhole tool may be retrieved via the channel open and/or tools or instruments may be inserted through the channel opening to work on the functional element. Therefore, service activities such as maintenance, repair, refurbishment, and change-outs can be accomplished relatively quickly because no time-consuming disassembly of the downhole tool is required. Also, as noted previously, the functional elements are packaged in a manner that does not obstruct the flow of drilling fluid through the central flow bore (e.g., flow bore 94 of
FIG. 2A ) of the drill string 11 (FIG. 1 ). - While the foregoing disclosure is directed to certain embodiments of the disclosure, various modifications will be apparent to those skilled in the art. It is intended that all variations within the scope of the appended claims be embraced by the foregoing disclosure.
Claims (19)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/142,917 US20170314389A1 (en) | 2016-04-29 | 2016-04-29 | Method for packaging components, assemblies and modules in downhole tools |
BR112018071358-9A BR112018071358B1 (en) | 2016-04-29 | 2017-04-26 | METHOD FOR PACKING COMPONENTS, ASSEMBLIES AND MODULES IN DOWNWELL TOOLS |
EP17790348.1A EP3449086A4 (en) | 2016-04-29 | 2017-04-26 | Method for packaging components, assemblies and modules in downhole tools |
CN201780024652.0A CN109072678B (en) | 2016-04-29 | 2017-04-26 | Method for packaging components, assemblies and modules in downhole tools |
PCT/US2017/029647 WO2017189731A1 (en) | 2016-04-29 | 2017-04-26 | Method for packaging components, assemblies and modules in downhole tools |
SA518400284A SA518400284B1 (en) | 2016-04-29 | 2018-10-22 | Method for packaging components, assemblies and modules in downhole tools |
US17/095,574 US20210207475A1 (en) | 2016-04-29 | 2020-11-11 | Method for packaging components, assemblies and modules in downhole tools |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US15/142,917 US20170314389A1 (en) | 2016-04-29 | 2016-04-29 | Method for packaging components, assemblies and modules in downhole tools |
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US17/095,574 Continuation US20210207475A1 (en) | 2016-04-29 | 2020-11-11 | Method for packaging components, assemblies and modules in downhole tools |
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US17/095,574 Pending US20210207475A1 (en) | 2016-04-29 | 2020-11-11 | Method for packaging components, assemblies and modules in downhole tools |
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US17/095,574 Pending US20210207475A1 (en) | 2016-04-29 | 2020-11-11 | Method for packaging components, assemblies and modules in downhole tools |
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US (2) | US20170314389A1 (en) |
EP (1) | EP3449086A4 (en) |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11396775B2 (en) | 2016-07-14 | 2022-07-26 | Baker Hughes, A Ge Company, Llc | Rotary steerable drilling assembly with a rotating steering device for drilling deviated wellbores |
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Also Published As
Publication number | Publication date |
---|---|
US20210207475A1 (en) | 2021-07-08 |
SA518400284B1 (en) | 2023-02-08 |
CN109072678A (en) | 2018-12-21 |
CN109072678B (en) | 2021-06-08 |
WO2017189731A1 (en) | 2017-11-02 |
BR112018071358A2 (en) | 2019-02-05 |
EP3449086A1 (en) | 2019-03-06 |
EP3449086A4 (en) | 2019-12-25 |
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