WO2017134460A1 - A reaming system, device, and assembly - Google Patents
A reaming system, device, and assembly Download PDFInfo
- Publication number
- WO2017134460A1 WO2017134460A1 PCT/GB2017/050281 GB2017050281W WO2017134460A1 WO 2017134460 A1 WO2017134460 A1 WO 2017134460A1 GB 2017050281 W GB2017050281 W GB 2017050281W WO 2017134460 A1 WO2017134460 A1 WO 2017134460A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mandrel
- assembly
- reaming
- casing
- spacing
- Prior art date
Links
- 239000012530 fluid Substances 0.000 claims abstract description 55
- 238000000429 assembly Methods 0.000 claims description 18
- 230000000712 assembly Effects 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 description 26
- 239000000463 material Substances 0.000 description 11
- 230000008901 benefit Effects 0.000 description 10
- 238000005520 cutting process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 238000013019 agitation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/02—Fluid rotary type drives
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B17/14—Casing shoes for the protection of the bottom of the casing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
- E21B7/201—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes with helical conveying means
- E21B7/203—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes with helical conveying means using down-hole drives
Definitions
- the present invention relates to drilling, specifically to reaming systems, assemblies, and devices, including reamin assemblies associated to horizontal drilling.
- a reamer is a type of rotary cutting tool used to clean and/or enlarge the size of a previously formed hole, generally to leave the sides of the hole sufficiently smooth for later purposes.
- the process of so cleaning and/or enlarging the hole is called reaming.
- Drilling changes the fundamental characteristics of the surrounding and produces a void with respect to pressure, water content, and even chemical interactions may occur by exposing the materials surrounding the hole to the air. Further, natural layering, fissures, facture lines and etc. may react different to-the hole than the surrounding material. Accordingly, such holes will often end up with discontinuities that make it difficult to operate the hole as desired. Thus, reaming systems/devices may be used to make the sides of the hole sufficiently smooth for continued operation. Also, it is often useful to follow the reaming with a pipe that then prevents further distortion of the surrounding material from intruding on the working portion of the hole.
- the reaming device is generally left in the hole at the bottom of the pipe. Wherein further drilling needs to occur, the drill will generally just drill through the reaming device on its way past.
- Horizontal drilling includes added difficulties, especially including difficulties in sliding tools/mandrels/pipes/etc. inside the hole, since the weight of such will rest against the side of the hole. This makes it much more difficult to advance a drill or reamer during horizontal operation.
- U.S. Patent No.: 2,084,096, issued to Everett discloses a self-supporting, self- guiding rotary oil well drilling, apparatus and "particularly to that type embodying two rotary drill bits, two rotary drill stems therefor and an operating block for operating the said rotary drill bits and stems, a-gatherer, container and retainer for drill bit cuttings, a propelling shaft therefor and differential gears for operating the said shaft, and electrically driven motors for operating the aforesaid mechanism, however, while the present invention is embodied in an apparatus of this type, there are certain features which may of course be utilized in rotary oil well drilling apparatus different from the specific form shown, and other means of power such as steam, hydraulic or compressed air pressure may be utilized in actuating and rotating the drill bits and other mechanism in connection with the operation of the aforesaid rotary oil well drilling apparatus.
- a drilling assembly includes a cutting head apparatus configured to cut into earthen material as the cutting head apparatus is rotated.
- a drive shaft extends aft of and is configured to rotate the cutting head apparatus.
- a plurality of reamer arm assemblies projects radially outward of the drive shaft and are mounted for rotation therewith aft of the cutting head apparatus.
- Individual of the reamer arm assemblies include a radial inner portion extending radially outward of the drive shaft.
- a radial outer portion connects with and extends radially outward of the radial inner portion.
- the radial outer portion includes a cutter.
- At least one breakaway retainer fastens the radial inner and outer portions together and restrains the radial outer portion from moving relative to the radial inner portion towards the cutting head apparatus and the drive shaft.
- Other aspects are contemplated.
- U.S. Patent No.: 7,938,204 discloses a reamer bit for use in earth boring operations comprising a body, mounting elements on the bit body having rolling cutters, and nozzles configured to emit a cleaning spray that is angled with respect to the well bottom.
- the cleaning spray may be angled up to about 20. degree, with respect to the well bottom.
- the reamer may further include a pilot bit on a drill pipe extending downward from the reamer body.
- U.S. Patent No.: 8,201 ,643, issued to Soby et al. discloses a system and method for enabling longitudinal and radial drilling in a wellbore is described.
- the system and method enable an operator to perforate the casing of a wellbore with an under-reamer at the end of a drill string and, without removing the drill string from the wellbore, initiate and complete lateral jetting of the wellbore into the surrounding formation.
- the system utilizes a perforation tool having a ball seat, which upon seating a drop ball in the ball seat enables the perforation tool to move from a closed position to an open position thereby allowing access to the formation using a jetting tool.
- an under- reaming operation may be performed using a hydraulic pressure activated under-reaming tool.
- U.S. Patent No.: 8,205,689 discloses drilling systems and methods for enlarging a borehole that include at least one expandable reamer and at least one expandable stabilizer axially spaced therefrom in a tubular string, such as a drill string, the at least one expandable reamer and the at least one expandable stabilizer being independently actuatable by different-sized actuation devices.
- a relatively lower tool is actuatable by a smaller actuation device, such as a drop ball, which passes through a relatively higher tool in the drill string without triggering the higher tool.
- the inventions heretofore known suffer from a number of disadvantages which include being limited in use, being expensive, not being powerful enough, failing to provide strong torque, being slow, resulting in slow reaming, not being scalable, failing to extend reach, failing to overcome obstructions, not allowing for an easy drill-through, failing to reduce the need for evacuation to push a casing, not being capable of drilling surface case and/or surface holes, not able to directionally drill surface holes, not allowing one to drill and run casing at the same time without rotating the entire casing, not allowing you to drill and run casing in a non-vertical hole, being unduly complex, being difficult to use, being limited in application, being limited in adaptability, being limited in conversion, being limited in torque, having too slow a rotation, not being usable with a variety of shoes, and/or failing to prevent a shoe from falling off when drilling through the system.
- the present invention has been developed in response to the present state of the art, and in particular, in response to the problems and needs in the art that have not yet been fully solved by currently available reaming systems. Accordingly, the present invention has been developed to provide an efficient and effective horizontal drilling and reaming assembly.
- a reaming assembly may include an inner mandrel that may have spiral lobes disposed on an outer surface thereof.
- the inner mandrel may be hollow.
- the hollow of the inner mandrel may be sized large enough to freely pass a standard drill bit therethrough.
- the reaming assembly may include an outer mandrel that may be disposed around the inner mandrel and may have spiral lobes disposed on an inner surface of the outer mandrel.
- the outer mandrel may have a number of spiral lobes equal to the number of spiral lobes of the inner mandrel plus one.
- One of the inner and outer mandrel may be non-rotatably coupled to an end of a casing and the other may be non-rotatably coupled to a bit or shoe.
- the reaming assembly may include a spacing that may be between the outer surface of the inner mandrel and the inner surface of the outer mandrel through which fluid may be pumped to generate torque therebetween; wherein at least one of the inner and outer mandrel may be free to rotate.
- the reaming assembly may include an upper flow diverter that may divert fluid flow from a center region of the reaming assembly to the spacing between the inner and outer mandrels.
- the reaming assembly may include a lower flow diverter that may divert fluid flow from the spacing between the inner and outer mandrels to a center region of the reaming assembly.
- the reaming assembly may include upper and lower bearing assemblies rotatably coupled between the inner and outer mandrels.
- the reaming assembly may include an elongated tubular housing that may have a first end that may have a fluid inlet aperture.
- the elongated tubular housing may include a second end that may be disposed opposite the first end, and may have a fluid outlet aperture.
- the elongated tubular housing may include a coupling structure that may be at the first end of the housing that may be selectably mated with a bottom end of a casing tube.
- the reaming assembly may include a reaming tool that may be functionally coupled to the inner or outer mandrel such that torque therefrom is transmitted to the reaming tool.
- the reaming assembly may include a casing tube that may be coupled to the housing.
- Figure 1 is a perspective view of a reaming assembly with cutaway, according to one embodiment of the invention.
- Figure 2 is a cross-sectional view of a an upper flow diverter of a reaming assembly, according to one embodiment of the invention
- Figure 3 is a perspective view of a reaming assembly with cut-away, according to one embodiment of the invention.
- Figure 4 is a top plan cross-sectional view of an inner mandrel and an outer mandrel of a reaming assembly, according to one embodiment of the invention
- Figures 5 and 6 are perspective views of portions of a reaming assembly with cutaway, according to one embodiment of the invention.
- FIG. 7 is a side elevational view of a reaming system, according to one embodiment of the invention.
- DETAILED DESCRIPTION OF THE INVENTION For the purposes of promoting an understanding of the principles of the invention, reference will now be made to the exemplary embodiments illustrated in the drawing(s), and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended. Any alterations and further modifications of the inventive features illustrated herein, and any additional applications of the principles of the invention as illustrated herein, which would occur to one skilled in the relevant art and having possession of this disclosure, are to be considered within the scope of the invention.
- FIG. 1 is a perspective view of a reaming assembly with cutaway, according to one embodiment of the invention.
- a reaming assembly 10 including an outer mandrel 18 (partially cut-away) coupled to an upper and a lower flow diverters 34, 38 and an upper and lower bearing assemblies 42, 44, and an auger-like inner mandrel 12 disposed within the outer mandrel 18.
- Each of the two mandrels include spiral lobes facing towards each other (i.e. the lobes on the inner mandrel are on the outside, while the lobes of the out mandrel are on the inside, See Figure 4).
- the spiral lobes are mismatched such that they rotate against each other when fluid is pumped through the space between them and generate vibration (notation) as one rotates past the other.
- a reaming assembly 10 for installing a casing 50 that generates sufficient torque to drill or ream through substantially any obstruction in a wellbore.
- the reaming assembly 10 agitates a drill string by generating a shock- wave due to the notation of a tool. This extends the reach of the casing 50 by creating agitation which in some extended reach wells (e.g. horizontal wells that are longer than the vertical section of the well) the assembly 10 could run the casing 50 further than normally would be able to do without the need for extra hydraulic or mechanical evacuation.
- the strong torque allows the assembly 10 to drill with a casing bit. This is supposed to replace a jetting assembly in deep water operations.
- the power is generated by a long rotor/stator (generally, the longer the rotor, the more torque that will be generated).
- the external part of the whole tool rotates about the internal.
- the inner mandrel (not shown) is the rotor (i.e. rotates) and the outer mandrel 1 8, as shown, is the stator (i .e. stays fixed relative to the casing).
- the outer mandrel 18 is the rotor (rotates) and the inner mandrel is the stator (does not rotate).
- the bit 32 at the front end is connected to whichever is the rotor so that the bit 32 turns as fluid is pumped through the assembly.
- the rotor and stator or the inner and outer mandrels have spiral lobes that face each other and the lobes bouncing past each other during rotation is what causes the vibration/agitation.
- the inner mandrel may be hollow and sized so that a drill bit just passes through it and does not need to drill.
- the inner mandrel may also be of a drillable material so it may be drilled out.
- the version with the rotating outer mandrel 18, as shown, may be a more robust tool that may be appropriate for more challenging well types.
- the reaming assembly 10 will generally have one fewer lobes on the inner mandrel 12 as compared to the outer mandrel 1 8 and this allows for strong consistent torque.
- the inner mandrel When making the assembly and putting the inner mandrel into the outer mandrel, the inner mandrel will turn into the outer mandrel so that the lobes match and it may fit. Whichever part, either the inner mandrel or the outer mandrel is connected to the casing adapter 52, the shoe/bit 32 at the front is connected to the other, since that will be the one that rotates and the other may be fixedly coupled to the casing 50 which does not turn.
- the reaming assembly 10 includes a casing 50, a casing adapter 52, an upper end cap, an upper bearing assembly 42, an upper flow diverter 34 (upper flow joint assembly), an inner mandrel, an outer mandrel 18, a centralizer 54, a lower flow diverter 38 (lower flow joint assembly), a lower bearing assembly 44, a lower cap, and a reamer shoe 32.
- a casing 50 there is a casing 50, and a casing adapter 52 fixedly coupled to the casing 50 (casing mates into the casing adapter through a box connection) and to either the inner mandrel or the outer mandrel 18 and rotatably coupled to the other (could be via the upper cap) upper end cap (forces flow through the lobes and not through the hollow center of the inner mandrel) is fixedly connected to the outer mandrel and rotatably coupled to the upper bearing assembly.
- the upper bearing assembly is rotatably coupled between the inner mandrel and the outer mandrel.
- the upper flow diverter 34 (upper flow joint assembly) is in fluid connection between an interior of the casing 50 and the power section (the space between lobes that are facing each other) inner mandrel is disposed within the outer mandrel.
- the outer mandrel surrounds the inner mandrel.
- the centralizer is disposed around one or more of the casing adapter and the outer mandrel.
- the lower flow diverter 38 (lower flow joint assembly) is in fluid connection between the power section (the space between lobes that are facing each other) and the interior of the reamer shoe 32.
- the lower bearing assembly 44 is rotatably coupled between the inner mandrel and the outer mandrel.
- the lower cap protects the lower bearing assembly which is fixedly coupled to the outer mandrel and either fixedly coupled to the shoe 32. If the outer mandrel is rotating or rotatably coupled to the shoe via a projection, if not the reamer shoe is fixedly coupled to the rotor (whichever one is rotating, i.e. inner or outer mandrel).
- a hollow rotor having an external part of the tool which rotates along with the reamer shoe and the lobed power section.
- a casing which may be any weight, size, strength, and/or grade.
- a casing adapter to connect to a casing, which type may depend on the casing (e.g. box connection if the casing has a threaded end).
- There may be an upper end cap which may be sufficient to protect the bearing assembly and/or make any connections required at that region.
- the upper flow diverter may be a drillable tube that diverts fluid flow from being central (i.e. how it is when it comes down the casing) to being medial (i.e. between the inner and outer mandrels).
- an internal/inner mandrel may be hollow or not, may have continuous or discontinuous lobes, may have one fewer lobe than how many lobes are on an external/outer mandrel, and/or may consist essentially of a drillable material or not.
- an external/outer mandrel may generally comprise not drillable material which may generally be solid steel, may generally have one more lobe than an associated internal mandrel, and may generally include continuous or discontinuous lobes.
- There may be one or more centralizers may be functionally coupled to an exterior surface of the assembly to help keep the assembly centered within a hole.
- a lower flow diverter may be associated with or part of a lower flow joint assembly and may include a tube/channel that diverts flow from a medial region (i.e. between the inner and outer mandrels) to a more central region of the assembly (i.e. an interior cavity of a reaming shoe).
- a medial region i.e. between the inner and outer mandrels
- a more central region of the assembly i.e. an interior cavity of a reaming shoe.
- There may be a lower bearing assembly similar to the upper bearing assembly.
- There may be a lower cap similar to an upper cap.
- There may be a reaming/reamer shoe such as but not limited to an eccentric nose reamer shoe or a casing bit.
- the reaming assembly 10 includes an inner mandrel 12 that includes spiral lobes disposed on an outer surface thereof.
- the illustrated reaming assembly 10 includes an outer mandrel 18 disposed around the inner mandrel and has spiral lobes disposed on an inner/interior surface of the outer mandrel 18.
- One of the inner and outer mandrels are non-rotatably coupled to an end 28 of a casing 50 and the other is non-rotatably coupled to a bit or shoe 32. Thereby at least one of the inner and outer mandrel is free to rotate when fluid pumped through the space between the two lobed mandrels causes torque therebetween .
- the illustrated reaming assembly 10 includes an upper flow diverter 34 to divert fluid flow from a center region, not shown in Figure 1 , of the reaming assembly 10 to the spacing between the inner and outer mandrels.
- the reaming assembly 1 0 includes a lower flow diverter 38 to divert fluid flow from the spacing between the inner and outer mandrels to a center region of the reaming assembly 10.
- the illustrated reaming assembly 10 includes upper and lower bearing assemblies 42, 44 rotatably coupled between the inner and outer mandrels.
- the casing 50 includes a first end 62 including a fluid inlet aperture 64 and a second end 66, disposed opposite the first end 62, and includes a fluid outlet aperture 68.
- the casing 50 includes a casing adapter 52 or a coupling structure that is at the first end 62 of the casing 50 that is selectably mated with a casing tube.
- the reaming assembly 10 includes an auger 70 disposed within the casing and is functionally coupled to a lower bearing assembly 44 such that the auger may rotate with respect to an attached casing tube and including a rotation transmission structure that transfers rotation motion.
- the reaming assembly 10 includes a rearmng tool, such as a bit or shoe 32 that is functionally coupled to the auger 70.
- the reaming assembly 10 includes a casing tube coupled to the casing 50.
- FIG. 2 is a cross-sectional view of a an upper flow diverter of a reaming assembly, according to one embodiment of the invention. There is shown an upper flow diverter 34 that diverts fluid flow from a center region 36 of the reaming assembly to a spacing 24 in between an inner mandrel 12 and an outer mandrel 18.
- the illustrated upper flow diverter 34 that diverts fluid flow from a center region
- the inner mandrel 12 includes spiral lobes 14 disposed on an outer surface thereof.
- the inner mandrel 1 2 is hollow. The hollow of the inner mandrel 12 is sized large enough to freely pass a standard drill bit therethrough.
- the outer mandrel 18 is disposed around the inner mandrel 12 and has spiral lobes
- the outer mandrel 18 generally has a number of spiral lobes 20 equal to the number of spiral lobes 14 of the inner mandrel 12 plus one 26.
- the one-lobe difference between the inner and outer mandrels has thus far been an optimum number of lobes to produce the best torque and notation within the reaming devices/assemblies/systems.
- One of the inner and outer mandrels are non-rotatably coupled to an end of a casing and the other is non-rotatably coupled to a bit or shoe.
- the illustrated spacing 24 is between the outer surface of the inner mandrel 12 and the inner surface of the outer mandrel 18 through which fluid is pumped to generate torque therebetween; wherein at least one of the inner 12 and outer mandrels 1 8 is free to rotate.
- the upper flow diverter 34 diverts fluid flow from a center region of the reaming assembly to the spacing 24 between the inner and outer mandrels 12, 18.
- FIG. 3 is a perspective view of a reaming assembly with cutaway, according to one embodiment of the invention.
- a reaming assembly 10 including an outer mandrel 18, coupled to an upper and a lower flow diverters 34, 38 and an upper and lower bearing assemblies 42, 44.
- the reaming assembly 10 includes an inner mandrel 12 that includes spiral lobes disposed on an outer surface thereof.
- the illustrated reaming assembly 10 includes an outer mandrel 18 disposed around the inner mandrel and has spiral lobes disposed on an inner surface of the outer mandrel 18, not shown in Figure 1.
- One of the inner and outer mandrels are non-rotatably coupled to an end 28 of a casing 50 and the other is non- rotatably coupled to a bit or shoe 32. At least one of the inner and outer mandrel is free to rotate.
- the illustrated reaming assembly 10 includes an upper flow diverter 34 to divert fluid flow from a center region, not shown in Figure 1 , of the reaming assembly 10 to the spacing between the inner and outer mandrels.
- the reaming assembly 10 includes a lower flow diverter 38 to divert fluid flow from the spacing between the inner and outer mandrels to a center region of the reaming assembly 10.
- the illustrated reaming assembly 10 includes upper and lower bearing assemblies 42, 44 rotatably coupled between the inner and outer mandrels.
- the casing 50 includes a first end 62 including a fluid inlet aperture 64 and a second end 66, disposed opposite the first end 62, and includes a fluid outlet aperture 68.
- the casing 50 includes a casing adapter 52 or a coupling structure that is at the first end 62 of the casing 50 that is selectably mated with a casing tube.
- the reaming assembly 10 includes an auger 70 disposed within the casing and is functionally coupled to a lower bearing assembly 44 such that the auger may rotate with respect to an attached casing tube and including a rotation transmission structure that transfers rotation motion.
- the reaming assembly 10 includes a reaming tool, such as a bit or shoe 32 that is functionally coupled to the auger 70.
- the reaming assembly 10 includes a casing tube coupled to the casing 50.
- Figure 4 is a top plan cross-sectional view of an inner mandrel and an outer mandrel of a reaming assembly, according to one embodiment of the invention.
- An upper flow diverter diverts fluid flow from a center region of a reaming assembly to a spacing 24 in between the inner mandrel 12 and the outer mandrel 18.
- the illustrated upper flow diverter 34 that diverts fluid flow from a center region 36 of a reaming assembly to a spacing 24 between an inner mandrel 12 and an outer mandrel 18 of a reaming assembly.
- the inner mandrel 12 includes spiral lobes 14 disposed on an outer surface thereof.
- the inner mandrel 12 is hollow.
- the hollow of the inner mandrel 12 is sized large enough to freely pass a standard drill bit therethrough.
- the outer mandrel 18 is disposed around the inner mandrel 12 and has spiral lobes 20 disposed on an inner surface of the outer mandrel 18.
- the outer mandrel 18 has a number of spiral lobes 20 equal to the number of spiral lobes 14 of the inner mandrel 12 plus one.
- the illustrated inner mandrel has nine lobes while the illustrated outer mandrel has ten lobes.
- One of the inner and outer mandrels are non-rotatably coupled to an end of a casing and the other is non-rotatably coupled to a bit or shoe.
- the illustrated spacing 24 is between the outer surface of the inner mandrel 12 and the inner surface of the outer mandrel 18 through which fluid is pumped to generate torque therebetween; wherein at least one of the inner 12 and outer mandrels 18 is free to rotate.
- the upper flow diverter diverts fluid flow from a center region of the reaming assembly to the spacing 24 between the inner and outer mandrels 12, 18.
- Figures 5 and 6 are partial cutaway views of lower and upper bearing assemblies (44 and 42) of Figure 1 respectively.
- Each of the lower and upper bearing assemblies includes a port 41 and 21 that provides fluid connection between the center region and the spacing between the two mandrels, with the lower port 41 allowing for a return of the fluid to the central region after it flows between the two mandrels and the upper port allowing for the fluid to divert from the central region to then flow between the two mandrels towards the lower portion of the assembly 10 (See Figure 1).
- One of the inner and outer mandrels are non-rotatably coupled to an end of a casing and the other is non-rotatably coupled to a bit or shoe 32. At least one of the inner and outer mandrel is free to rotate and by operation of lower and upper bearing packs 43 and 23 respectively.
- the illustrated reaming assembly 10 includes an upper flow diverter 34 to divert fluid flow from a center region, not shown in Figure 1 , of the reaming assembly 10 to the spacing between the inner and outer mandrels.
- the reaming assembly 10 includes a lower flow diverter 38 to divert fluid flow from the spacing between the inner and outer mandrels to a center region of the reaming assembly 10.
- the illustrated reaming assembly 10 includes upper and lower bearing assemblies 42, 44 rotatably coupled between the inner and outer mandrels.
- the casing 50 includes a first end 62 including a fluid inlet aperture 64 and a second end 66, disposed opposite the first end 62, and includes a fluid outlet aperture 68.
- the casing 50 includes a casing adapter 52 or a coupling structure that is at the first end 62 of the casing 50 that is selectably mated with a casing tube.
- the reaming assembly 10 includes an auger 70 disposed within the casing and is functionally coupled to a lower bearing assembly 44 such that the auger may rotate with respect to an attached casing tube and including a rotation transmission structure that transfers rotation motion.
- the reaming assembly 10 includes a reaming tool, such as a bit or shoe 32 that is functionally coupled to the auger 70.
- the reaming assembly 10 includes a casing tube coupled to the casing 50.
- FIG. 7 is a side elevational view of a reaming system, according to one embodiment of the invention.
- a reaming system 1 1 designed to cut the final size and finish of a horizontal drill hole.
- a reaming system, device, etc. will not make the original hole, but instead, enlarge and/or clean or otherwise make more smooth the interior of a previously drilled or bored hole.
- the illustrated reaming system 1 1 includes a rig structure (derrick) 14 supporting a casing 13 lead by a mandrel assembly 38 that is disposed within a hole 39.
- the derrick 14 includes structure and devices to operate the mandrel assembly and to permit the addition of more casing sections as the mandrel assembly works its way down the hole.
- the reaming system 1 1 advantageously allows for a hole to be reamed and lined with a casing for future operations, such as but not limited to oil production.
- Similar reaming systems may be constructed for reaming in other contexts, wherein the derrick is replaced with appropriate support structure and/or wherein the casing may or may not be present.
- the illustrated reaming system 11 includes a derrick 14 for supporting the components and parts of the reaming system 1 1 during use.
- a derrick is a lifting device generally including a guyed mast, as in a gin pole, which may be articulated over a load by adjusting its guys.
- the term derrick is also applied to the framework supporting a drilling apparatus in an oil rig.
- the illustrated derrick includes a crown block 83.
- the illustrated crown block 83 is functionally coupled to a traveling block 82 that travels vertically within the derrick 14.
- a crown block is the stationary section of a block and tackle that contains a set of pulleys or sheaves through which the drill line (wire rope) is threaded and is opposite and above the traveling block.
- a traveling block is the freely moving section of a block and tackle that contains a set of pulleys or sheaves through which the drill line (wire rope) is threaded is opposite (and under) the crown block (the stationary section).
- the illustrated derrick 14 includes a motor 84 or other power source that may be used to operate one or more pumps, winches, drills, and/or the like and combinations thereof.
- the motor 84 may be used to pump fluid through the casing and thereby through the mandrel assembly to cause a shoe at a bottom portion of the mandrel assembly to rotate at high speeds and with strong torque to effectively ream the hole.
- the illustrated derrick 14 also includes a blowout preventer 86 functionally coupled around a top of the hole 39.
- the blowout preventer 86 is generally a large, specialized valve or similar mechanical device, usually installed redundantly in stacks, used to seal, control and monitor oil and gas wells. Blowout preventers were developed to cope with extreme erratic pressures and uncontrolled flow (formation kick) emanating from a well reservoir during drilling. Kicks may lead to a potentially catastrophic event known as a blowout.
- blowout preventers are intended to prevent tubing (e.g.
- blowout preventers improve the safety of crew, rig (the equipment system used to drill a wellbore) and environment, and to the monitoring and maintenance of well integrity; thus blowout preventers are intended to provide fail-safety to the systems that include them.
- the reaming system 11 includes a mandrel assembly 38 coupled to a bottom end of the casing 13 and configured to ream a drill hole when a shoe is coupled to a bottom end thereof.
- the mandrel assembly 38 may be coupled to the bottom end of the casing in a variety of manners, including but not limited to mating threads, snap-fits, friction fitting, adhesives, bolts, and the like and combinations thereof.
- the mandrel assembly 38 grips a shoe, which is the operating component that interfaces with the interior of the hole to be reamed and abrades away material, thereby reaming the hole.
- the shoe generally includes protrusions that, when the shoe spins, impact with non-smooth regions of the interior of the hole and thereby abrade the same making such regions more smooth and increasing the effective interior diameter of the same so that the casing can follow behind without getting stuck.
- a reaming system, device, and/or mandrel assembly that is, advantageously, a low costs system that attaches to any of a great variety of shoes (e.g. float shoe, reamer shoe, guide shoe) from a variety of manufacturers. It includes an internal/central axle that rotates inside a housing and/or includes a pin-down connection (e.g. pin to pin, box-pin) to couple to a shoe so it can connect to any tool/ shoe. The internal axle spins when you pump fluid through the mandrel assembly and spins a sub that is connected to the shoe which therefore also spins.
- shoes e.g. float shoe, reamer shoe, guide shoe
- pin-down connection e.g. pin to pin, box-pin
- the internal axle and/or other centrally positioned parts are generally of an aluminum and/or zinc alloy (or other material that may be drilled through rather easily, since the mandrel assembly is generally left at a bottom of the hole when the casing is finished being installed).
- system/assembly includes a single centralizer
- the invention may be practiced without multiple centralizers or even with no centralizer.
- FIG. 1 illustrates an outer mandrel having ten spiral lobes on an interior thereof, a different number of lobes and/or lobes of different slopes, curvatures, sizes, shapes and the like may be present.
- the components of the device may be constructed of a variety of materials, including but not limited to metals (both driUable and not), plastics, ceramics, composites and the like and combinations thereof.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/014,317 | 2016-02-03 | ||
US15/014,317 US20170218705A1 (en) | 2016-02-03 | 2016-02-03 | Reaming system, device, and assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017134460A1 true WO2017134460A1 (en) | 2017-08-10 |
Family
ID=57995234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2017/050281 WO2017134460A1 (en) | 2016-02-03 | 2017-02-03 | A reaming system, device, and assembly |
Country Status (2)
Country | Link |
---|---|
US (1) | US20170218705A1 (en) |
WO (1) | WO2017134460A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9982499B2 (en) * | 2016-02-29 | 2018-05-29 | Quantum Downhole Systems Inc. | Method and apparatus for clearing a wellbore |
US10695987B2 (en) * | 2018-05-30 | 2020-06-30 | Intrinsic Energy Technology, LLC | Lobular connection for tubulars |
CN112483018A (en) * | 2020-12-10 | 2021-03-12 | 中国石油集团渤海钻探工程有限公司 | Double-acting sleeve rotating guide shoe |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040112639A1 (en) * | 2002-12-16 | 2004-06-17 | Chen Chen-Kang D. | Drilling with casing |
GB2461309A (en) * | 2008-06-27 | 2009-12-30 | Futuretec Ltd | Reamer having a rotary drive |
GB2520752A (en) * | 2013-11-29 | 2015-06-03 | Deep Casing Tools Ltd | Wellbore reaming tool having locking clutch for drill out after running wellbore tubulars |
US20150368978A1 (en) * | 2014-06-23 | 2015-12-24 | National Oilwell Varco, L.P. | Powered reaming device |
-
2016
- 2016-02-03 US US15/014,317 patent/US20170218705A1/en not_active Abandoned
-
2017
- 2017-02-03 WO PCT/GB2017/050281 patent/WO2017134460A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040112639A1 (en) * | 2002-12-16 | 2004-06-17 | Chen Chen-Kang D. | Drilling with casing |
GB2461309A (en) * | 2008-06-27 | 2009-12-30 | Futuretec Ltd | Reamer having a rotary drive |
GB2520752A (en) * | 2013-11-29 | 2015-06-03 | Deep Casing Tools Ltd | Wellbore reaming tool having locking clutch for drill out after running wellbore tubulars |
US20150368978A1 (en) * | 2014-06-23 | 2015-12-24 | National Oilwell Varco, L.P. | Powered reaming device |
Also Published As
Publication number | Publication date |
---|---|
US20170218705A1 (en) | 2017-08-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10676992B2 (en) | Downhole tools with progressive cavity sections, and related methods of use and assembly | |
US7673707B2 (en) | Drilling apparatus and system for drilling wells | |
US7814991B2 (en) | Process and apparatus for subterranean drilling | |
CA2850795C (en) | Wellbore conditioning system | |
US7293616B2 (en) | Expandable bit | |
US4825963A (en) | High-pressure waterjet/abrasive particle-jet coring method and apparatus | |
US20150226009A1 (en) | Near-Bit Borehole Opener Tool and Method of Reaming | |
CN106062299A (en) | Multi fluid drilling system | |
US7258165B1 (en) | Hole opener and drillable casing guide and methods of use | |
WO2017134460A1 (en) | A reaming system, device, and assembly | |
AU2006321380B2 (en) | Method and apparatus for installing deflecting conductor pipe | |
MXPA04011869A (en) | Wedge activated underreamer. | |
AU2021260545A1 (en) | Multi-string section mill | |
GB2486112A (en) | Drilling apparatus | |
US20150337598A1 (en) | Pressure Booster for Rotary Steerable System Tool | |
US8567511B2 (en) | Method and apparatus for running casing in a wellbore with a fluid driven rotatable shoe | |
CA2742660A1 (en) | Method and apparatus for running casing in a wellbore with a fluid driven rotatable shoe | |
US20170030147A1 (en) | Reaming system | |
GB2409220A (en) | Borehole apparatus | |
RU2711171C1 (en) | Drillable shoe with power drive for casing string bottom equipment | |
US9080384B2 (en) | Pressure balanced fluid operated reaming tool for use in placing wellbore tubulars | |
RU2757839C1 (en) | Working bottom | |
RU2779682C1 (en) | Casing reamer bit | |
RU2781653C1 (en) | Turbine drive of the shoe-bit for drilling a complicated section of the well | |
RU2808164C1 (en) | Hydraulic working base plate (options) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17704066 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 17704066 Country of ref document: EP Kind code of ref document: A1 |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 01.02.2019) |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 17704066 Country of ref document: EP Kind code of ref document: A1 |