• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A submersible drilling tool (100) includes a drill bit (112a) which is rotatably mounted on a shaft journal (113a). The shaft pin (113a) is fixed to a frame for a countersink drill tool (101a, 101b) with a fastening device (115a, 115b, 115c, 115d). The fastener (115a, 115b, 115c, 115d) engages an insert (117a, 117b, 117c, 117d) and a holder (118a, 118b) so that its rotation is limited. The insert (117a, 117b, 117c, 117d) extends over a head (120a, 120b, 120c, 120d) of the fastener (115a, 115b, 115c, 115d), and the holder (118a, 118b) extends over the insert (117a, 117b, 117c, 117d).
    公开号:SE1250476A1
    申请号:SE1250476
    申请日:2010-10-12
    公开日:2012-05-10
    发明作者:Andrew J Osborne
    申请人:Atlas Copco Secoroc Llc；
    IPC主号:
    专利说明:

    [20] Fig. Si is a sectional side view of the submersible drilling tool of Figs. 5a and 5b taken.along the cutting line Sc-Sc in Fig. Sb, the fastening devices and inserts ending abovethe holder.
    [21] Fig. Sj is a close-up perspective view of the submersible drilling tool of Figs.Sb, the bolt holders being welded to the frames of the submersible drilling tool and the correspondingthe posts.
    [22] Fig. 9 is a perspective view of the submersible drilling tool of Fig. Sd carried by adrill string.
    [23] Fig. 1 is a perspective view of the frames of a submersible drilling tool 110a and10lb. In this embodiment, the frames of the submersible drilling tool 11a and 101b are includedsaddles l02a and l02b respectively. The saddle 102a includes a channel for a shaft journal 105a, whichextends between the opposite countersunk surfaces l03a and l04a. Further includesthe saddle l02b a channel for a shaft journal l05b, which extends between the opposite onescountersunk surfaces l03b and l04b. The saddles for a shaft pin l05a and l05b aredimensioned and designed to accept a pivot, one of which willdiscussed in more detail shortly.Fig. 2 is a perspective view of a drill bit 111a, which is rotatably mountedon a shoulder pin ll3a. In this embodiment, the drill bit 111a includes the oppositeshaft journal openings through which the shaft journal 11a extends. The shoulder pin ll3a includesthe fastener openings 114a and 114b, which are positioned on one side of the drill bit112a, and the fastener openings 114c and 114d, which are positioned on aopposite side of the drill bit ll2a. The drill bit 11a and the shaft pin 11a are included in onecutting units, one of which will be discussed in more detail shortly.
    [25] Fig. 3 is an exploded perspective view of a cutting assembly 110a. In thisembodiment, the cutting assembly 110a includes the drill bit 112a, which is rotatably mountedon the shaft pin 11a, as described in more detail above in connection with Fig. 2. The cutting assemblyl10a includes the fasteners ll5a, 1l5b, ll5c and ll5d and the washers l16a, ll6b,ll6c and ll6d. The fasteners ll5a, ll5b, ll5c and ll5d are used to connect4the shaft pin 111a to the frames of a submersible drilling tool 10la and 101b (Fig. 1), such asdiscussed in more detail below. In this way, the shaft journal 11a is connected to the frames forthe submersible drilling tool l0la and l0lb. The fasteners ll5a, ll5b, ll5c and ll5d includefasteners heads 120a, 120b, 120c and 120d. Fasteners heads l20a, l20b,l20c and l20d can be of many different types. For illustrative purposesthe fastener heads 120a, 120b, 120c and 120d designed as being hexagonalheads having six sides. The trays ll6a, ll6b, ll6c and ll6d are accepted bythe fastening devices 115a, 115b, 115c and 115d, respectively, as shown in Fig. 4, so that they engage incorresponding fastener heads 120a, 120b, 120c and 120d.
    [26] In this embodiment, the cutting assembly 110a includes the inserts 117a, 117b, 117cand ll7d. Posts ll7a, ll7b, ll7c and ll7d include the openings for afasteners heads 121a, 121b, 12c and 12ld, which are dimensioned and shapedto accept the corresponding fastener heads. In this embodiment, the openings arefor a fastener head 121a, 121b, l2lc and l2ld dimensioned and designed forto accept the fastener heads 120a, 120b, 120c and 120d, respectively. Thus exhibitsthe openings for a fastener head 121a, l2lb, l2lc and l2ld six sides, whichcorresponds to the six sides of the fastener heads 120a, 120b, 120c and 120d, respectively. Onin this way, the posts ll7a, ll7b, ll7c and ll7d constitute posts for hexagonal heads andthe openings for a fastener head 121a, 121b, l2lc and l2ld constitute openings forhexagonal heads.
    [27] In this embodiment, the cutting assembly 110 includes the holders 18a and 18b,as shown in a perspective view in Fig. 5. The holder 11a includes the insert openingsll9a and ll9b, and the holder ll8b includes the insert openings ll9c and ll9d.
    [28] It should be noted that in this embodiment a locking fastener assembly130a includes the inserts 117a and 117b, the holder 111a, the fasteners 115a and 115band the washers ll6a and ll6b. Furthermore, in this embodiment, a locking device is includedfasteners 130b inserts 111c and 117d, holder 118b, fastenersll5c and ll5d and the trays ll6c and ll6d. The locking fasteners l30aand l30b secures and locks the shaft pin 1l3a to the frames of a submersible drilling tool l0larespectively 10lb, as will be discussed in more detail shortly.Figs. 6a and 6b are perspective views of a partially assembled submersible drilling tool.100. In this embodiment, the submersible drilling tool 100 includes frames for a submersible drilling tool.11a and 101b, which are shown in Fig. 1. In this embodiment, the drill bit 112a is rotatablemounted on the shaft pin 113a, as described in more detail above in connection with Fig. 2.
    [30] In this embodiment, the tags 116a, 116b, 116c and 116d are accepted bythe fasteners 115a, 115b, 15c and 115d, respectively, as described in more detail above inassociated with Fig. 4. The fasteners 115a and 115b extend throughfasteners 1114a and 114b, respectively, so that the washers 116a and 116b engagethe shaft pin 113a, and the shaft pin 113a are attached to the frame of a submersible drilling tool 110a. Furtherthe fasteners 11c and 11d extend through the fastener openings 114c14d, respectively, so that the washers 16c and 116d engage the shaft pin 113a, and the shaft pinll3a is attached to the frame of a submersible drilling tool 101b. The shaft journal ll3a is shown attached to the framesfor the submersible drilling tool l01a and 10lb in Fig. 6b. It should be borne in mind thatthe fastener heads 120a and 120b extend away from the recess surfaces 103b and104b (Fig. 1), and the fastener heads 120c and 120d extend away fromthe countersunk surfaces 103a and l04a.Figs. 7a and 7b are perspective views of a partially assembled submersible drilling tool.In Fig. 7a, the inserts 117a and 17b are positioned so that the fastener heads 120aand 120b extend through the openings of a fastener head 121a, respectively121b. Furthermore, the inserts 117c and 117d are positioned so that the fastener heads 120cand 120d extends through the openings of a fastener head 121c and 121d. Asdiscussed in more detail above, the openings for a fastener head 121a, 121b, 121c6and l2ld dimensioned and designed to accept the fastener heads 120a,120b, 120c and 120d, respectively, as shown in fig. 7b. Fig. 7c is a top view of the insertsll7a, ll7b, ll7c and ll7d in engagement with the fastener heads l20a, l20b, l20crespectively l20d. It should be noted that the posts ll7a and ll7b extend away fromthe recess surfaces l03b and l04b, and the inserts ll7c and ll7d extend away fromthe countersunk surfaces l03a and l04a.
    [32] Figs. 5a and 5b are perspective views of the submersible drilling tool 100. In Figs.the holder 118a is positioned so that the inserts 11a and 11b extend throughthe insert openings ll9a and ll9b, respectively. Furthermore, the holder 118b is positioned so thatthe inserts ll7c and ll7d extend through the insert openings ll9c and ll9d, respectively. Asdiscussed in more detail above, the insert openings are ll9a, ll9b, ll9c and ll9ddimensioned and designed to accept the posts ll7a, ll7b, ll7c and ll7d respectively,as shown in Fig. Sb.
    [33] In Fig. Sb, the inserts 117a and 117b are held against the corresponding fastener headsl20a and l20b, as well as against the shaft pin ll3a, of the holder ll8a. I fi g. Sb grips the holderll8a into posts ll7a and ll7b, and posts 117a and ll7b intervene infasteners heads 120a and 120b, respectively. Furthermore, the insert openings are ll9c andll9d dimensioned and designed to accept the posts ll7c and ll7d respectively, so thatthe inserts ll7c and ll7d are held against the corresponding fastener heads l20c and 120d,as well as against the shaft pin 1l3a, of the holder ll8b. In Fig. Sb, the holder 118b engages inposts ll7c and ll7d, and posts ll7c and ll7d engage the fastener headsl20c and l20d, respectively.
    [34] Fig. Sc is a sectional side view of a submersible drilling tool 100 taken along acutting line 8c-8c in Fig. Sb. In this embodiment, the inserts ll7a and ll7b are located inlevel with the holder ll8a (fig. Sc), and the inserts ll7c and ll7d are at the same heightwith the holder ll8b. However, in other embodiments, the inserts ll7a and ll7b extendbelow the holder ll8a, and the inserts ll7c and ll7d extend below the holder ll8b.
    [35] Furthermore, the inserts 117a and 117b in some embodiments extend abovethe holder ll8a, and the inserts ll7c and ll7d extend above the holder ll8b. The postsll7a and 117b extend above the holder ll8a as the inserts 117a and ll7b end above7an outer surface of the holder l18a, and the inserts ll7c and ll7d extend above the holderll8b when the inserts ll7c and 117d end above an outer surface of the holder ll8b.
    [36] In the embodiments of Fig. Sc, the fastener heads 120a and 120b are located inlevel with the holder 118a and the inserts 117a and 117b, respectively, andthe fastener heads 120c and 120d are flush with the holder 111b andposts ll7c and ll7d respectively.
    [37] However, in other embodiments, the fastener heads 120a andl20b below the holder ll8a and the inserts ll7a and ll7b respectively, andthe fastener heads l20c and l20d extend below the holder ll8b and the inserts117c and 117d, respectively. The fastener heads 120a and 120b extend belowthe holder 11a when the fastener heads 120a and 120b end below an outer surface ofthe holder 118a, and the fastener heads 120c and 120d extend below the holder118b when the fastener heads 120c and 120d end below an outer surface of the holder1 18b.
    [38] In some embodiments, the fastener heads 120a and 120b extendabove the holder 118a and the inserts 117a and 117b, respectively, and the fastener headsl20c and l20d extend above the holder l18b and the inserts ll7c and ll7d, respectively.
    [39] As mentioned above, the inserts 111a and 117b engage the fastener heads 120aand l20b, and the holder 118a engages the posts ll7a and ll7b to hold the posts ll7aand llb against the fastener heads 120a and 120b, respectively. In operation, the holder 188a engagesin posts ll7a and ll7b to limit their ability to rotate relativelyfasteners heads 120a and 120b, respectively. The shaft journal ll3a is less likelydisconnected from the frames of a submersible drilling tool 101a and 101b when the holder 118a engagesin posts ll7a and ll7b to limit their ability to rotate relativelyfastener heads 120a and 120b. In this way, it is less likely thatthe fasteners ll5a and ll5b come loose undesirably. It is more likely that the shaft journal ll3adisconnected from the frames of the submersible drilling tool 101a and 101b when the fastening devices 115aand ll5b loosens undesirably.
    [40] In Fig. 8c, the inserts 111a and 117b are flush with the holder 118a, andthe fastener heads 120a and 120b are flush with the holder 111a and8inserts 117a and 117b, respectively, so that the fastener heads 120a and 120b are smallerlikely to be injured. For example, the inserts ll7a and 1l7b are flush with the holder118a, and the fastener heads 120a and 120b are flush with the holder11a and the inserts 117a and 117b, respectively, so that the fastener heads 120a and 120bless likely to be damaged by shear. It is more likely that the shaft journal ll3adisconnected from the frames of a countersink drill l0la and l0lb due tothe fastener heads 120a and 120b are sheared off. Furthermore, it is less likely thatthe shaft pin 11a is disconnected from the frames of the submersible drilling tool 11a and 10b due tothat the fastener heads 120a and 120b are sheared off. Thus, the holder reduces l18a andinserts 117a and 117b the probability that the fasteners 115a and 115b willis damaged as a result of the extreme loads experienced by the submersible drilling tool 100 as it drillsthrough the formation.
    [41] As mentioned above, the inserts ll7c and ll7d engage the fastener heads l20cand l20d, and the holder ll8b engages the posts ll7c and ll7d to hold the posts ll7cand ll7d against the fastener heads 120c and 120d, respectively. In operation, the holder 118b engagesin inserts 117c and ll7d to limit their ability to rotate relativelyfasteners heads 120c and 120d, respectively. The shaft journal ll3a is less likelydisconnected from the frames of a countersink drill tool l0la and l0lb when the holder ll8b engagesin posts ll7c and ll7d to limit their ability to rotate relativelyfasteners heads l20c and l20d. In this way, it is less likely thatthe fasteners ll5c and l15d come loose undesirably. It is more likely that the shaft journal ll3adisconnected from the frames of the submersible drilling tool l0la and l0lb when the fastening devices ll5cand ll5d loosens unwanted.
    [42] I fig. 8c, the inserts 117c and 117d are flush with the holder 118b, andthe fastener heads 120c and 120d are flush with the holder 111b andinserts ll7c and ll7d, respectively, so that the fastener heads l20c and l20d smallerlikely to be injured. For example, the inserts 117c and 117d are flush with the holderll8b, and the fastener heads l20c and l20d are flush with the holderl18b and the inserts ll7c and ll7d, respectively, so that the fastener heads l20c and 120dless likely to be damaged by shear. It is more likely that the shaft journal ll3adisconnected from the frames of a countersink drill l0la and l0lb due tothe fastener heads l20c and l20d are pushed off. Furthermore, it is less likely thatthe shaft pin 113a is disconnected from the frames of a submersible drilling tool l01c and 10ld as a resultby shearing off the fastener heads l20c and l20d. Thus, the holder 118b reduces9and posts ll7c and ll7d the probability that the fasteners ll5c and ll5d willto be damaged as a result of the extreme loads that the submersible drilling tool 100 experiences when drillingthrough the formation. It should be taken into account that the holders and inserts for the cutting unit 11a isome embodiments may be welded to the frame of the submersible drilling tool 10a and 10b,as will be discussed in more detail in connection with Fig. Sj.Figs. Sd and Se are sectional side views of the insert 177a and the holder, respectively.11a, taken along the cutting line 8c-8c in Fig. Sb. In this embodiment, the insert 17a includesa tapered section 125a, which extends outwardly from and from its outer peripherythe openings for a fastener head l2la. Furthermore, the holder 118a includes onetapered section l26a, which extends outwardly from the insert openings ll9a. Thetapered sections 125a and 125b are dimensioned and designed to matcheach other, as shown in fi g. Sc. The tapered sections 125a and 125b limitthe ability of the insert 11a to move through the openings of a fastener headl21a, so that the holder ll8a holds the insert ll7a more securely against the shaft pin 113a. In this waythe insert 11a and the holder 11a include a match of the tapered sections.
    [44] Fig. Sf is a sectional side view of the submersible drilling tool 100 in Figs. 5a and Sb.taken along the cutting line 8c-8c in Fig. Sb, the fastening devices 11a and 11a endingbelow the posts ll7a and ll7b and the holder ll8a. The fastening device 11a ends belowthe insert ll7a and the holder l18a because the fastener head l20a ends belowthe post ll7a and the holder ll8a. In this way, the fastening device 115a includes onefastener head ending below at least one of a post and a holder.
    [45] Fig. Sg is a sectional side view of the submersible drilling tool 100 in Figs. 5a and 5btaken along the cutting line 8c-8c in Fig. Sb, the fastening devices 115a and 115b endingabove the posts ll7a and ll7b and the holder ll8a. The fastening device 11a ends abovethe insert 11a and the holder 11a because the fastener head 120a ends abovethe insert 117a and the holder ll8a. In this way, the fastening device 115a includes onefastener head ending above at least one of a post and a holder.
    [46] Fig. Sh is a sectional side view of the submersible drilling tool 100 in fi g. Sa and Sbtaken along the cutting line 8c-8c in Fig. Sb, the fastening devices 120a and 120b and the insertsll7a and ll7b end below the holder ll8a. The fastening device 11a ends below the holderllSa because the fastener head l20a ends below the holder ll8a. In this waythe fastener 11sa comprises a fastener head terminating below a holder.
    [47] Fig. Si is a sectional side view of the submersible drilling tool 100 in Figs. 5a and Sb.taken along the cutting line 8c-8c in Fig. Sb, the fastening devices 120a and 120b and the insertsll7a and ll7b end above the holder ll8a. The fastener 11a ends above the holderll8a because the fastener head l20a ends above the holder ll8a. In this waythe fastening device 115a comprises a fastening device head ending above a holder.
    [48] Thus, Figs. Sf, Sg, Sh and Si illustrate that the tool 100 may include afastener, which includes a fastener head that terminates above at least oneof a post and a holder. Furthermore, Figs. Sf, Sg, Sh and Si illustrate that the tool l00 caninclude a fastener, which includes a fastener head ending belowat least one of a post and a holder.Fig. Sj is a close-up perspective view of a submersible drilling tool 100. In thisembodiment, the submersible drilling tool l00 comprises a welding structure l22a extendingbetween the holder 118a and the frame of a submersible drilling tool 110b, and a welding structurel22b extending between the holder 118b and the frame of a submersible drilling tool l0la.
    [51] In this embodiment, the submersible drilling tool 100 includes welding structures 12cand l23d, which extend between the holder 118b and the inserts 117c and 117d, respectively.
    [52] Fig. 9 is a perspective view of the submersible drilling tool 100 of Fig. Sd carried bya drill string 105. In this embodiment, the submersible drilling tool 100 includes the cutting assembliesll0a, ll0b, llOc and llOd, the cutting units ll0b, llOc and ll0d being the same asthe cutting unit 110a. The drill string 105 extends through the frames of a submersible drilling tool101a and 10b, and the cutting assemblies 110b, 110c and 110d are spaced apart from each other.each other around the drill string 105.The embodiments of the invention described herein are provided by way of example andnumerous modifications, variations and rearrangements are easily conceivablethe same results, all of which are intended to be included within the spirit and scope ofthe invention as defined in the appended claims.
    权利要求:
    Claims (7)
    [1]
    Roller reamer, comprising a drill bit (112a), which is rotatably mounted on a shaft pin (113), which is fixed at both ends (113a) of a tool frame for a submersible drilling tool (101) with a fastening device (115) comprising a fastening device head (120), characterized in that an insert (117) comprising an opening for a fastener head (121) is arranged dimensioned and designed to accept the corresponding fastener head (120), the fastener (115) being positioned so that the fastener head (120) extends through the opening for the fastener head (121) and engages the insert (117) to limit the ability of the fastener head (120) to rotate relative to the insert, a holder (118) including an insert opening 119 is dimensioned and designed to accept the insert (117) , so that the insert (117) is held against the corresponding fastening head (120), as well as against the shaft pin (113), a first welding structure (122) is adapted to hold a holder (118) against the tool frame of a countersunk drill (101), and a second welding structure (123) is adapted to hold the insert (117) against the holder (118), so that the insert and the holder limit the ability of the fastener to rotate.
    [2]
    The roller reamer of claim 1, wherein the holder and the insert include first (126a) and second tapered sections (125a), respectively, dimensioned and shaped to match each other.
    [3]
    The roller reamer of claim 1, wherein the holder further includes a second holder opening.
    [4]
    The roller reamer of claim 1, wherein the insert opening (119) is a hexagonal opening, and the fastener head is dimensioned and shaped to be accepted by the hexagonal opening.
    [5]
    Roller reamer according to claim 1, comprising a second insert with a second central hexagonal opening, and a second fastening device, which comprises a second hexagonal 13 fastening device head, dimensioned and designed to be accepted by the second central hexagonal opening.
    [6]
    The roll reamer of claim 1, wherein the holder and the second insert include third and fourth tapered sections, respectively, sized and shaped to match each other.
    [7]
    A method of attaching a drill bit (112a) rotatably mounted to a shaft journal (113) on a frame for a submersible drilling tool (101) for a roller reamer with a fastener (115) comprising a fastener head (120), the method comprising engaging an insert (117) with the fastener head (120), engaging a holder (118) with the frame of the submersible drilling tool (101) and the insert, providing a welding structure (122) which holds the holder against the frame of the submersible drilling tool, and providing a welding structure (122), which holds the holder (118) against the insert (117) and limits the ability of the fastener head (120) to rotate.
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    同族专利:
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    法律状态:
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    US25067809P| true| 2009-10-12|2009-10-12|
    PCT/US2010/052368|WO2011046960A2|2009-10-12|2010-10-12|Downhole tool|
    US12/902,989|US20110085877A1|2009-10-12|2010-10-12|Downhole tool|
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