US20100096122A1 - Wellbore Cleaning Devices - Google Patents
Wellbore Cleaning Devices Download PDFInfo
- Publication number
- US20100096122A1 US20100096122A1 US12/578,727 US57872709A US2010096122A1 US 20100096122 A1 US20100096122 A1 US 20100096122A1 US 57872709 A US57872709 A US 57872709A US 2010096122 A1 US2010096122 A1 US 2010096122A1
- Authority
- US
- United States
- Prior art keywords
- cleaning device
- cleaning member
- shaft portion
- wellbore
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 106
- 239000003381 stabilizer Substances 0.000 claims abstract description 26
- 238000007373 indentation Methods 0.000 claims description 31
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 238000007790 scraping Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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
- E21B37/00—Methods or apparatus for cleaning 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/02—Scrapers specially adapted therefor
Definitions
- Wellbore cleaning devices include casing scrapers and brushing devices. These mechanisms are used to remove mud, cement sheath, perforation burrs, rust, scale, paraffin, and other debris from the internal surface of wellbore casing.
- the casing scraper or brush is typically attached to a drill string for operation. The drill string and cleaning device are then disposed within the casing members to be scraped, and rotated.
- FIG. 6 is an axial cross-section taken along the lines 6 - 6 in FIG. 5 .
- FIG. 10 is an isometric view of an exemplary scraper blade used with the scraper device of FIGS. 1A-1C and 2 , shown apart from other components of the scraper device.
- FIG. 12 is a cross-sectional view taken along the lines 12 - 12 in FIG. 11 .
- the rotation interface 84 also includes a split rotation sleeve 104 which underlies scraper blades 70 of the scraper device 10 .
- An exemplary rotation sleeve 104 is depicted in detail in FIGS. 3 and 4 wherein it can be seen that the sleeve 104 is preferably made up of two sleeve halves 106 , 108 . If desired, there may be more than two sleeve halves 106 , 108 which can be assembled about the lower shaft 24 to form a complete or substantially complete annular sleeve 104 .
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Cleaning In General (AREA)
Abstract
Non-rotating tubular wellbore cleaning devices are described which include a central tool mandrel with radially surrounding stabilizers and a cleaning member subassembly. A rotational bearing is provided that is partially radially recessed, thereby improving the overall strength of the cleaning device.
Description
- This application claims priority to U.S. Provisional Patent Application Ser. No. 61/106,674 filed Oct. 20, 2008 and U.S. Provisional Patent Application Ser. No. 61/149,632 filed Feb. 3, 2009.
- 1. Field of the Invention
- The invention relates generally to systems and methods for cleaning the interior of tubular members. In particular aspects, the invention relates to methods and devices for scraping wellbore casing.
- 2. Description of the Related Art
- Wellbore cleaning devices include casing scrapers and brushing devices. These mechanisms are used to remove mud, cement sheath, perforation burrs, rust, scale, paraffin, and other debris from the internal surface of wellbore casing. The casing scraper or brush is typically attached to a drill string for operation. The drill string and cleaning device are then disposed within the casing members to be scraped, and rotated.
- Typical casing scrapers include a central scraping body and one or more scraping blades that extend radially outwardly therefrom. Conventional casing scrapers generally fall into one of two categories: rotating and non-rotating. With a rotating scraper, the scraping body and the scraping blades are securely affixed to each other so that both rotate with the drill string. In applications where the drill string is rotated for long periods of time, rotating scrapers can cause serious wear and damage to the interior surface of casing. With a non-rotating scraper, only the scraping body rotates with the drill string. The scraper blades are not affixed to the central scraping body, but are urged radially outwardly from it by compression springs in order to provide a force for removal of debris. An example of this type of arrangement is found in U.S. Pat. No. 7,311,141 issued to Tulloch et al.
- The invention provides methods and devices for cleaning the interior of tubular members, such as casing members. Exemplary non-rotating tubular cleaning devices are described which include a central tool mandrel with radially surrounding stabilizers and a cleaning member subassembly. The cleaning member subassembly includes one or more scraper blades that are secured around the tool mandrel. In one embodiment, a scraper device is described wherein each scraper blade of a scraper blade subassembly includes a blade housing having blade windows. Scraper blades are retained within the blade housing so that the scraper blades are biased radially outwardly through the windows. In another embodiment, a brush-type wellbore cleaning device is described wherein the cleaning member subassembly includes a brush attachment having a central collar with cleaning bristles.
- A rotation interface is disposed between the cleaning member subassembly and stabilizers and ensures that the stabilizers and cleaning members can rotate with respect to the mandrel. In preferred embodiments, the interface includes sets of rotational bearings or bushings, and preferably roller bearings that enable the cleaning member subassembly to easily rotate with respect to the tool mandrel. Exemplary rotation interfaces feature annular indentations and split ring and split sleeve components that fit into the indentations to allow portions of the rotation interface to be recessed radially inwardly.
- The construction of the cleaning devices permit these tools to have improved strength and resistance to axial and torsional forces within the work string within which the cleaning device is used. The threaded connection of the tool mandrel largely governs the strength of the tool overall. The use of annular indentations and inner bearing race and rotational sleeve components permits the diameter of the threaded portion of the tool mandrel to be radially enlarged relative to the indentations. As a result, the cleaning tools are stronger and more resistant to axial and torsional stresses and forces.
- In other aspects, the invention relates to improved tools for cleaning the interior of a surrounding tubular and wherein the rotation interface permits the central mandrel to rotate within the cleaning members. In various embodiments, the cleaning members may be scraper blades or brushes.
- The advantages and further aspects of the invention will be readily appreciated by those of ordinary skill in the art as the same becomes better understood by reference to the following detailed description when considered in conjunction with the accompanying drawings in which like reference characters designate like or similar elements throughout the several figures of the drawing and wherein:
-
FIGS. 1A-1C are a side, cross-sectional view of an exemplary scraper device constructed in accordance with the present invention. -
FIG. 2 is a side, external view of the scraper device shown inFIGS. 1A-1C . -
FIG. 3 is a side, cross-sectional view of an exemplary split sleeve used in the scraper device ofFIGS. 1A-1C and 2, shown apart from the other components. -
FIG. 4 is an axial cross-section taken along the lines 4-4 inFIG. 3 . -
FIG. 5 is a side, cross-sectional view of an exemplary spacer used in the scraper device ofFIGS. 1A-1C and 2, shown apart from the other components. -
FIG. 6 is an axial cross-section taken along the lines 6-6 inFIG. 5 . -
FIG. 7 is a side, cross-sectional view of an exemplary scraper blade sleeve used in the scraper device ofFIGS. 1A-1C and 2, shown apart from the other components. -
FIG. 8 is an axial cross-section taken along lines 8-8 inFIG. 7 . -
FIG. 9 is a further enlarged view of lower portions of the scraper device shown inFIGS. 1A-1C and 2. -
FIG. 10 is an isometric view of an exemplary scraper blade used with the scraper device ofFIGS. 1A-1C and 2, shown apart from other components of the scraper device. -
FIG. 11 is an end view of the scraper blade shown inFIG. 10 . -
FIG. 12 is a cross-sectional view taken along the lines 12-12 inFIG. 11 . -
FIG. 13 is an isometric detail view of an exemplary inner bearing race used with the scraper device shown inFIGS. 1A-1C and 2. -
FIG. 14 is an isometric view of an exemplary bearing used with the scraper device shown inFIGS. 1A-1C and 2. -
FIGS. 15A-15C present a side, cross-sectional view of an exemplary cleaning device in accordance with the present invention and incorporating a brush-type cleaning assembly. -
FIG. 16 is an axial cross-section taken along lines 16-16 inFIG. 15A . -
FIGS. 1A-1C and 2 illustrate a first exemplary wellbore cleaning device constructed in accordance with the present invention. The first cleaning device is in the form of an exemplary tubular scraper device ortool 10 that is useful for incorporation into a wellbore work string and disposed within a wellbore. Thescraper device 10 includes a generally cylindrical tool mandrel, generally indicated at 12. Thetool mandrel 12 defines acentral flowbore 14 along its length. The upper end of thetool mandrel 12 preferably includes a box-type threadedconnection 16 so that thescraper device 10 may be secured to other portions of a wellbore work string (not shown). As shown inFIG. 1C , the lower to end of thetool mandrel 12 is secured by a threadedconnection 18 to abottom sub 20. - The
tool mandrel 12 presents an outer radial surface having a number of different diameter portions. There is an upper, enlarged-diameter portion 22 and a reduced diameter lower shaft, generally shown at 24. Thelower shaft 24 includes a plurality ofannular indentations lower shaft 24. Theindentations lower shaft 24. - An
upper wear ring 40 surrounds thelower shaft 24 immediately below the upperenlarged diameter portion 22. Anupper stabilizer 42 surrounds thelower shaft 24 below thewear ring 40. A cleaning member subassembly or scraper blade subassembly, generally indicated at 44, is located below theupper stabilizer 42 on thelower shaft 24.Lower stabilizer 46 surrounds thelower shaft 24 below thescraper blade subassembly 44. The upper andlower stabilizers scraper blade subassembly 44 within a surrounding casing member.Lower wear ring 48 is disposed below thelower stabilizer 46 and on thebottom sub 20. - The
scraper blade subassembly 44 includes an outer tubular cleaning member housing, orblade housing 50 which radially surrounds thelower shaft 24 of thetool mandrel 12. Theblade housing 50 defines a plurality of cleaning member windows, orblade windows 52. The construction of theblade housing 50 may be better understood by further reference toFIGS. 7 and 8 , which show theblade housing 50 apart from the other components of thescraper device 10. As shown there, theblade housing 50 includes a central axial bore 54 along its longitudinal length. Thebore 54 includes an upper, enlargeddiameter bearing chamber 56 and a reduceddiameter engagement section 58. The bearingchamber 56 has a smooth, cylindrical shape. However, theengagement section 58 preferably includes a plurality of radially inwardly directedengagement flats 60.FIG. 8 shows theengagement section 58 having a hexagonal shape which provides sixflats 60. However, other suitable cross-sectional shapes may also be used (i.e., pentagon, square), and there may be more or fewer than sixengagement flats 60. In the exemplary embodiment shown inFIGS. 1A-1C and 7, thebore 54 of theblade housing 50 also includes two radially-enlargedblade chambers annular flange 66. Theblade chambers blade windows 52. In addition, thebore 54 of theblade housing 50 contains a lower, enlargeddiameter bearing chamber 68. - Cleaning members in the form of
scraper blades 70 are disposed radially within theblade housing 50.FIGS. 10 , 11 and 12 depict anexemplary scraper blade 70. Eachscraper blade 70 includes ablade body 72 which presents radially outward-facing scraping surfaces 74. The radiallyinterior face 76 of thescraper body 72 is radially curved to generally match the curvature of thetool mandrel 12. A spring-retainingrecess 78 is formed within the interior face 76 (seeFIG. 12 ). Retainingflanges 80 extend laterally outwardly from theblade body 72. When ablade 70 is disposed within awindow 52 of theblade housing 50, the retainingflanges 80 prevent theblade 70 from falling radially outside of the window (seeFIGS. 1A and 1B ). Compression springs 82 reside within the spring-retainingrecess 78 of eachblade 70 and bias thescraper blade 70 radially outwardly from thetool mandrel 12. The configuration of the compression springs 82 are adapted to allow for the exertion of a symmetrical force between thescraper blade 70 androtation sleeve 104. - A rotation interface, generally indicated at 84 in
FIGS. 1A-1C , is disposed radially between thelower shaft 24 and the surroundingstabilizers scraper blade subassembly 44. Therotation interface 84 allows thestabilizers scraper blade subassembly 44 to rotate freely around thelower shaft 24. In one embodiment, therotation interface 84 includes a plurality of rotational bearings that are in the form of roller bearing sets 86. In the exemplary embodiment depicted inFIGS. 1A-1C , there are six roller bearing sets 86. However, there may be more or fewer than six sets. Each of the roller bearing sets 86 is made up of aninner bearing race 88, anouter bearing race 90, and a plurality ofrollers 92 that are disposed in between the inner and outer bearing races 88, 90. Alternatively, a bushing may be used in place ofouter bearing race 90,rollers 92 andspacer 116. Therollers 92 are preferably cylindrically shaped members, as illustrated inFIG. 14 . However, spherical roller bearings might also be used. Theinner bearing race 88 of each roller bearing set 86 is preferably made up of twohalves FIG. 13 . Alternatively, if desired, aninner bearing race 88 could also be made up of three or more separate race portions which could be assembled within anindentation rollers 92 will rotate upon the outerradial surface 98 of theinner bearing race 88 and, due to rolling contact of therollers 92 with both the inner and outer bearing races 88, 90, the bearing races 88, 90 will easily rotate with respect to one another. The outer bearing races 90 of the roller bearing sets 86 are in contact with, and preferably secured to portions of either thescraper blade subassembly 44 or thestabilizers FIG. 9 shows, for example, that theouter bearing race 90 of the roller bearing set 86 that is mounted withinindentation 34 is in contact with the surroundingscraper blade housing 50 and is secured in place against thescraper blade housing 50 byspacers 116 on each axial side. As a result, thescraper blade housing 50 will rotate about thetool mandrel 12 with theouter bearing race 90. Similarly, the outer bearing races 90 of the roller bearing sets 86 that are located inindentations lower stabilizer 46 so that thelower stabilizer 46 will rotate about thetool mandrel 12 with those outer bearing races 90. Alternative cleaning elements may be used in place ofscraper blades 70, such as magnets or brushes. This may be achieved by removing outer bearing races 90,rotation sleeve 104 andscraper blade subassembly 44, and engaging the alternative cleaning element to theinner bearing race 88. -
FIGS. 15A-15C and 16 depict an alternativeexemplary cleaning tool 10′ configured with an alternative cleaning member. The cleaning member of thecleaning tool 10′ is in the form of abrush 101 wherein cleaning brush bristles extend radially outwardly from a central collar. In this instance, the rotation interface includes bearingraces 88, which are disposed between themandrel 12 and thebrush 101. - Referring once again to the scraper-
type cleaning tool 10 shown inFIGS. 1A-1C and 2-14, therotation interface 84 also includes asplit rotation sleeve 104 which underliesscraper blades 70 of thescraper device 10. Anexemplary rotation sleeve 104 is depicted in detail inFIGS. 3 and 4 wherein it can be seen that thesleeve 104 is preferably made up of twosleeve halves sleeve halves lower shaft 24 to form a complete or substantially completeannular sleeve 104. Therotation sleeve 104 preferably presents a smooth cylindrical outerradial surface 110 along most of its length. One axial end of therotation sleeve 104 includes anouter interengagement surface 112 that presentsengagement flats 114. In the exemplary embodiment shown inFIG. 4 , there are sixengagement flats 114. However, there may be more or fewer than six, if desired. Alternatively, the interengagement surfaces 112, 58 may comprise teeth as opposed to engagement flats, so long as both surfaces are complimentary to one another. Theengagement flats 114 of thesplit sleeve 104 are shaped and sized to abut theengagement flats 60 of theblade housing 50. This complimentary engagement permits the rotation sleeve and theblade housing 50 to rotate together without the need to affix them to one another with a fastener or otherwise. Therotation sleeve 104halves shaft portion 24 of thetool mandrel 12, and will readily rotate about themandrel 12. - In preferred embodiments, spacer rings 116 are located between roller bearing sets 86 under the
stabilizers FIGS. 5 and 6 illustrate anexemplary spacer ring 116 apart from the other components of thescraper device 10. - As best seen in the enlarged view provided by
FIG. 9 , roller bearing sets 86 are preferably abutted by elastomeric lip seals 122 of a type known in the art for creating a fluid seal against the bearing set 86. In addition, the lip seals 122 will drag on theshaft portion 24 of thetool mandrel 12 to prevent thescraper blade subassembly 44 andstabilizers tool mandrel 12. The retainingring 124 andspacer 116 mechanically secure the roller bearing set 86 in place axially. Thefluid seal 122 prevents or limits the escape of lubricant from the bearing set 86. In an alternative embodiment, the roller bearing sets 86 may be replaced by an annular bushing. - Removable pipe plugs 130 are preferably provided in each of the
stabilizers blade housing 50. The pipe plugs 130 are preferably removably secured by threading and may be removed to allow lubricant to be supplied to the roller bearing sets 86. - To assemble the
scraper device 10, the inner bearing races 88 for each of the roller bearing sets 86 are placed into theindentations annular bearing race 88. Stabilizers are preassembled withlip seals 122, outer bearingraces 90 withrollers 92,spacer ring 116 and retainingring 124. Theupper stabilizer 42 is slid onto theshaft 24 to a position wherein it abuts theupper wear ring 40.Springs 82 are installed in spring retaining recesses 78.Spacer 116, lip seals 122 andouter bearing race 90 with rollers orannular bushing 92 forblade housing 50 are slid ontoshaft 24. Therotation sleeve 104 is assembled around theshaft 24 inindentation 32. Thescraper blades 70 are disposed into thewindows 52 of theblade housing 50. Thereafter, theblades 70, springs 82, andblade housing 50 are slid onto theshaft 24. Theengagement section 58 of theblade housing 50 is positioned onto theouter surface 112 of therotation sleeve 104 so that theengagement flats 114 of thesplit sleeve 104 are interengaged with theengagement flats 60 of theblade housing 50. As a result of this interengagement, theblade housing 50 and splitsleeve 104 will rotate as one about theshaft 24 of thetool mandrel 12.Spacer 116, lip seals 122, andouter bearing race 90 withroller 92 are slid ontoshaft 24, and pushed inside ofblade housing 50. Thelower stabilizer assembly 46 is then slid onto theshaft 24. Thereafter, thewear ring 48 andbottom sub 20 are secured to theshaft 24. It will be appreciated that therotation interface 84 permits thestabilizers scraper blade subassembly 44 to rotate freely about thetool mandrel 12. - The internal diameters of the
stabilizers blade housing 50 are slightly larger than the external diameter of the threadedportion 18 of thetool mandrel shaft 24. The internal diameters of thesplit bearing races 88 are smaller than the diameter of the threadedportion 18. The use ofsplit bearing races 88 reduces the amount of wear and frictional heat sustained on the surface of themandrel 12, when compared to the amount of wear and frictional heat a person of ordinary skill in the art would expect to occur if thestabilizers blade housing 50 were allowed to rotate on the surface of themandrel 12, by allowing for rotation about the split bearing races 88. AsFIG. 9 depicts, the outer diameter D1 of each of the indentations (as illustrated at indentation 38) is less than the outer diameter D2 of theshaft 24 at the point where the threadedconnection 18 begins. Diameter D2 is essentially the diameter of theshaft portion 24 where there are noindentations connection 18. The provision of split inner bearing races 88 androtation sleeve 104, which reside in a radially recessed manner within theindentations connection portion 18 of theshaft portion 24 to be provided with a larger diameter, thereby increasing the strength of the connection tobottom sub 20, the overall strength of thetool 10 and the resistance to damage from applied forces within a wellbore. As a result, the threadedconnection 18 substantially approximates full gauge (D2) while at least a portion of the rotational interface is disposed upon theshaft portion 24 radially within the full gauge diameter D2 by being recessed at less than full gauge (to the depth D1 of theindentations - The foregoing description is directed to particular embodiments of the present invention for the purpose of illustration and explanation. It will be apparent, however, to one skilled in the art that many modifications and changes to the embodiment set forth above are possible without departing from the scope and the spirit of the invention.
Claims (30)
1. A wellbore cleaning device comprising:
a tool mandrel having a shaft portion;
at least one cleaning member mounted to said mandrel for cleaning a surrounding tubular member;
a rotation interface between the cleaning member and said mandrel to permit the mandrel to rotate with respect to the cleaning member, the rotation interface comprising:
an indentation within and said mandrel; and
a bearing at least partially disposed within the indentation, the bearing allowing the mandrel to rotate inside said cleaning member, the bearing including a to rotation sleeve radially surrounding and rotatable with respect to the shaft portion.
2. The wellbore cleaning device of claim 1 wherein the bearing comprises a roller bearing set comprising:
a radially inner bearing race that is seated within the indentation, the inner bearing race being formed of multiple race portions that are assembled within the indentation to form a complete annular bearing race;
an outer bearing race radially surrounding the inner bearing race and the roller; and
at least one roller disposed between the inner and outer bearing races to permit the inner and outer bearing races to rotate with respect to each other.
3. The wellbore cleaning device of claim 1 wherein the bearing comprises an annular bushing.
4. The wellbore cleaning device of claim 1 further comprising a stabilizer rotationally mounted on the shaft portion of the tool mandrel.
5. The wellbore cleaning device of claim 1 further comprising:
a cleaning member housing that radially surrounds the shaft portion of the tool mandrel and has a cleaning member window defined therein; and
the cleaning member being disposed radially within the housing with a portion of the cleaning member being biased radially outwardly through the window.
6. The wellbore cleaning device of claim 4 wherein the rotation sleeve is not secured to the cleaning member housing by a fastener.
7. The wellbore cleaning device of claim 6 wherein the rotation interface further comprises a locking interengagement between the rotation sleeve and the cleaning member housing, the interengagement allowing the shaft portion to rotate inside the rotation sleeve and cleaning member housing.
8. The wellbore cleaning device of claim 7 wherein the locking interengagement comprises:
a radially outwardly-facing engagement surface on the rotation sleeve; and
a radially inwardly-facing engagement surface on the cleaning member housing that is shaped and sized to be generally complimentary to the engagement surface of the rotation sleeve.
9. The wellbore cleaning device of claim 8 wherein the inwardly and outwardly facing engagement surfaces each comprise a plurality of engagement flats.
10. The wellbore cleaning device of claim 1 wherein there are a plurality of indentations and a plurality of bearings, each of the bearings being disposed within a different indentation.
11. The wellbore cleaning device of claim 1 further comprising one or more spacers radially surrounding the shaft portion to secure the bearing in place upon the shaft portion.
12. The wellbore cleaning device of claim 1 wherein the cleaning member comprises a scraper blade.
13. The wellbore cleaning device of claim 1 wherein the cleaning member comprises a brush.
14. The wellbore cleaning device of claim 12 wherein the scraper blade is biased radially outwardly from the rotation sleeve by a spring.
15. A wellbore cleaning device comprising:
a tool mandrel having a shaft portion;
a cleaning member subassembly radially surrounding the shaft portion, the subassembly having at least one cleaning member for cleaning a surrounding tubular member;
a rotation interface between the scraper blade subassembly and shaft portion to permit the tool mandrel to rotate within the scraper blade subassembly, the rotation interface comprising:
an indentation within the shaft portion; and
a bearing set at least partially disposed within the indentation, the roller bearing set allowing the shaft portion to rotate within the cleaning member subassembly, the roller bearing set comprising:
a radially inner bearing race that is seated within the indentation, the inner bearing race being formed of multiple race portions that are assembled within the indentation to form a complete annular bearing race;
an outer bearing race radially surrounding the inner bearing race and being in contact with the cleaning member subassembly so that the cleaning member subassembly rotates with the outer bearing race; and
at least one bearing member disposed between the inner and outer bearing race to permit the inner and outer bearing races to rotate with respect to each other.
16. The wellbore cleaning device of claim 15 wherein the cleaning member subassembly comprises:
a cleaning member housing that radially surrounds the shaft portion of the tool mandrel and has a cleaning member window defined therein; and
a cleaning member that is disposed radially within the housing with a portion of the cleaning member being biased radially outwardly through the window.
17. The wellbore cleaning device of claim 16 wherein the rotation interface further comprises:
a rotation sleeve radially surrounding the shaft portion and rotatable with respect to the shaft portion; and
a locking interengagement between the rotation sleeve and the cleaning member housing, the interengagement causing the shaft portion to rotate within the rotation sleeve and cleaning member housing.
18. The wellbore cleaning device of claim 16 wherein the locking interengagement comprises:
a radially outwardly-facing engagement surface on the rotation sleeve; and
a radially inwardly-facing engagement surface on the cleaning member housing that is shaped and sized to be generally complimentary to the engagement surface of the rotation sleeve.
19. The wellbore cleaning device of claim 18 wherein the inwardly-facing and outwardly-facing engagement surfaces each comprise a plurality of engagement flats.
20. The wellbore cleaning device of claim 15 further comprising one or more spacers radially surrounding the shaft portion to secure the roller bearing set in place upon the shaft portion.
21. The wellbore cleaning device of claim 15 further comprising a plurality of stabilizers rotationally mounted on the shaft portion of the tool mandrel.
25. The wellbore cleaning device of claim 15 further comprising a plurality of stabilizers rotationally mounted upon the tool mandrel.
26. The wellbore cleaning device of claim 17 wherein the rotation sleeve is made up of a plurality of sleeve portions that are assembled about the shaft portion within an indentation to form a substantially complete annular sleeve.
27. The wellbore cleaning device of claim 17 wherein the rotation sleeve is not affixed to the cleaning member housing.
28. The wellbore cleaning device of claim 15 wherein the bearing member of the bearing set comprises an annular bushing.
29. The wellbore cleaning device of claim 15 wherein the bearing member of the bearing set comprises a roller element.
30. A wellbore cleaning device comprising:
a tool mandrel having a shaft portion;
at least one cleaning member mounted to said mandrel for cleaning a surrounding tubular member;
a rotation interface between the cleaning member and said mandrel to permit the mandrel to rotate with respect to the cleaning member, the rotation interface comprising:
an indentation within the shaft portion of said mandrel; and
a bearing at least partially disposed within the indentation, the bearing allowing the mandrel to rotate inside said scraper blade, the bearing including a rotation sleeve radially surrounding and rotatable with respect to the shaft portion.
31. The cleaning device of claim 30 wherein the cleaning member comprises a scraper blade.
32. The cleaning device of claim 31 wherein the cleaning member is a brush.
33. The cleaning device of claim 30 wherein:
the mandrel presents a threaded connection portion for attachment of the mandrel to an adjoining sub, the connection portion having a first diameter; and
the indentation has a second diameter which is less than the first diameter, thereby permitting the cleaning device to have a greater tool strength.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/578,727 US20100096122A1 (en) | 2008-10-20 | 2009-10-14 | Wellbore Cleaning Devices |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10667408P | 2008-10-20 | 2008-10-20 | |
US14963209P | 2009-02-03 | 2009-02-03 | |
US12/578,727 US20100096122A1 (en) | 2008-10-20 | 2009-10-14 | Wellbore Cleaning Devices |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100096122A1 true US20100096122A1 (en) | 2010-04-22 |
Family
ID=42107704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/578,727 Abandoned US20100096122A1 (en) | 2008-10-20 | 2009-10-14 | Wellbore Cleaning Devices |
Country Status (1)
Country | Link |
---|---|
US (1) | US20100096122A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102691477A (en) * | 2012-06-19 | 2012-09-26 | 东北石油大学 | Rock debris cleaning device for drilling tool |
US20140000900A1 (en) * | 2012-06-27 | 2014-01-02 | Simon Leiper | Drill string mountable wellbore cleanup apparatus and method |
US9109416B2 (en) | 2012-03-23 | 2015-08-18 | Baker Hughes Incorporated | One trip tubular cleaning and drilling additional open hole |
US20160305219A1 (en) * | 2015-04-15 | 2016-10-20 | Baker Hughes Incorporated | One Trip Wellbore Cleanup and Setting a Subterranean Tool Method |
US9512696B2 (en) * | 2013-07-23 | 2016-12-06 | Dennis Joel Penisson | Non-rotating wellbore casing scraper |
CN106499363A (en) * | 2016-11-28 | 2017-03-15 | 西南石油大学 | A kind of spontaneous electrical heating paraffin removal tool of high-pressure gas well and its method |
GB2492692B (en) * | 2010-05-03 | 2018-08-01 | Baker Hughes Inc | Wellbore cleaning devices |
US10041333B2 (en) | 2013-07-25 | 2018-08-07 | Baker Hughes, A Ge Company, Llc | One trip drill and casing scrape method and apparatus |
US10208553B2 (en) * | 2013-11-05 | 2019-02-19 | Weatherford Technology Holdings, Llc | Magnetic retrieval apparatus |
CN113107427A (en) * | 2020-01-10 | 2021-07-13 | 中国石油天然气集团有限公司 | Integrated wall scraper and wellbore cleaning tool string |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3104134A (en) * | 1961-05-05 | 1963-09-17 | Dale E Nielsen | Non-rotating drill guide assembly |
US5261498A (en) * | 1989-06-29 | 1993-11-16 | The Red Baron (Oil Tools Rental) Limited | Drill string component |
US6152220A (en) * | 1998-06-07 | 2000-11-28 | Specialised Petroleum Services Limited | Down-hole tool with centralising component |
US6460616B1 (en) * | 1996-08-15 | 2002-10-08 | Weatherford/Lamb, Inc. | Traction apparatus |
US6851472B2 (en) * | 2002-03-13 | 2005-02-08 | Baker Hughes Incorporated | Convertible tubular scraper |
US20050205252A1 (en) * | 2004-03-11 | 2005-09-22 | Smith International, Inc. | Casing scraper |
US7255164B2 (en) * | 2004-03-11 | 2007-08-14 | Smith International, Inc. | Casing brush assembly |
-
2009
- 2009-10-14 US US12/578,727 patent/US20100096122A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3104134A (en) * | 1961-05-05 | 1963-09-17 | Dale E Nielsen | Non-rotating drill guide assembly |
US5261498A (en) * | 1989-06-29 | 1993-11-16 | The Red Baron (Oil Tools Rental) Limited | Drill string component |
US6460616B1 (en) * | 1996-08-15 | 2002-10-08 | Weatherford/Lamb, Inc. | Traction apparatus |
US6152220A (en) * | 1998-06-07 | 2000-11-28 | Specialised Petroleum Services Limited | Down-hole tool with centralising component |
US6851472B2 (en) * | 2002-03-13 | 2005-02-08 | Baker Hughes Incorporated | Convertible tubular scraper |
US20050205252A1 (en) * | 2004-03-11 | 2005-09-22 | Smith International, Inc. | Casing scraper |
US7255164B2 (en) * | 2004-03-11 | 2007-08-14 | Smith International, Inc. | Casing brush assembly |
US7311141B2 (en) * | 2004-03-11 | 2007-12-25 | Smith International, Inc. | Casing scraper |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2492692B (en) * | 2010-05-03 | 2018-08-01 | Baker Hughes Inc | Wellbore cleaning devices |
US9109416B2 (en) | 2012-03-23 | 2015-08-18 | Baker Hughes Incorporated | One trip tubular cleaning and drilling additional open hole |
CN102691477A (en) * | 2012-06-19 | 2012-09-26 | 东北石油大学 | Rock debris cleaning device for drilling tool |
US20190226300A1 (en) * | 2012-06-27 | 2019-07-25 | Odfjell Well Services Norway As | Drill string mountable wellbore cleanup apparatus and method |
US20140000900A1 (en) * | 2012-06-27 | 2014-01-02 | Simon Leiper | Drill string mountable wellbore cleanup apparatus and method |
US11988070B2 (en) * | 2012-06-27 | 2024-05-21 | Odfjell Well Services Norway As | Drill string mountable wellbore cleanup apparatus and method |
US9528325B2 (en) | 2012-06-27 | 2016-12-27 | Odfjell Well Services Norway As | Drill string mountable wellbore cleanup apparatus and method |
US11560773B2 (en) * | 2012-06-27 | 2023-01-24 | Odfjell Well Services Norway As | Drill string mountable wellbore cleanup apparatus and method |
US10961822B2 (en) * | 2012-06-27 | 2021-03-30 | Odfjell Well Services As | Drill string mountable wellbore cleanup apparatus and method |
US9885227B2 (en) | 2012-06-27 | 2018-02-06 | Odfjell Well Services Norway As | Drill string mountable wellbore cleanup apparatus and method |
WO2014003576A3 (en) * | 2012-06-27 | 2014-05-30 | Odfjell Well Services Europe As | Drill string mountable wellbore cleanup apparatus and method |
US10619454B2 (en) * | 2012-06-27 | 2020-04-14 | Odfjell Well Services Norway As | Drill string mountable wellbore cleanup apparatus and method |
US10190393B2 (en) * | 2012-06-27 | 2019-01-29 | Odfjell Well Services Norway As | Drill string mountable wellbore cleanup apparatus and method |
US9109417B2 (en) * | 2012-06-27 | 2015-08-18 | Odfjell Well Services Europe As | Drill string mountable wellbore cleanup apparatus and method |
US9512696B2 (en) * | 2013-07-23 | 2016-12-06 | Dennis Joel Penisson | Non-rotating wellbore casing scraper |
US10487628B2 (en) | 2013-07-25 | 2019-11-26 | Baker Hughes, A Ge Company, Llc | One trip drill and casing scrape method and apparatus |
US10041333B2 (en) | 2013-07-25 | 2018-08-07 | Baker Hughes, A Ge Company, Llc | One trip drill and casing scrape method and apparatus |
US10208553B2 (en) * | 2013-11-05 | 2019-02-19 | Weatherford Technology Holdings, Llc | Magnetic retrieval apparatus |
US9879505B2 (en) * | 2015-04-15 | 2018-01-30 | Baker Hughes, A Ge Company, Llc | One trip wellbore cleanup and setting a subterranean tool method |
US20160305219A1 (en) * | 2015-04-15 | 2016-10-20 | Baker Hughes Incorporated | One Trip Wellbore Cleanup and Setting a Subterranean Tool Method |
CN106499363A (en) * | 2016-11-28 | 2017-03-15 | 西南石油大学 | A kind of spontaneous electrical heating paraffin removal tool of high-pressure gas well and its method |
CN113107427A (en) * | 2020-01-10 | 2021-07-13 | 中国石油天然气集团有限公司 | Integrated wall scraper and wellbore cleaning tool string |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20100096122A1 (en) | Wellbore Cleaning Devices | |
US8511375B2 (en) | Wellbore cleaning devices | |
CA2499525C (en) | Casing brush assembly | |
WO2010048167A2 (en) | Wellbore cleaning devices | |
EP0824629B1 (en) | Drill string fitting | |
US5715898A (en) | Stabiliser for a downhole apparatus | |
US4453836A (en) | Sealed hard-rock drill bit | |
US6837317B2 (en) | Bearing seal | |
US20110271470A1 (en) | Brush Assembly with Non-Rotating Stabilizer and Brushes | |
US7878238B2 (en) | Cleaning apparatus | |
US20110168383A1 (en) | Cleaning Device | |
DK177632B1 (en) | Cleaning tool device | |
EA037763B1 (en) | Bearing section for a mud lubricated drilling motor and method of absorbing a radial load in such motor | |
US10851589B2 (en) | Integrated bearing section and method | |
AU2007260957A1 (en) | Cuttings removal wipers for cutter assemblies and method | |
US20110186287A1 (en) | Cleaning Device | |
US10689912B1 (en) | Sealed bearing rock bit with a low profile seal | |
CA2219426C (en) | Drill string fitting | |
CA2567339C (en) | Drill string fitting | |
MXPA97008253A (en) | Adapter for sarta of rods of perforac |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BAKER HUGHES INCORPORATED,TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:POSEVINA, LISA L.;HERN, GREGORY L.;CONNELL, PAUL L.;SIGNING DATES FROM 20091103 TO 20091214;REEL/FRAME:023659/0264 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |