US1912823A - Setting tool - Google Patents

Description

June 6, 1933 W. L. CHURCH SETTING TOOL Filed Dec. 16, 1932 2 Sheets-Sheet 1 June 6, 1933. w. L. CHURCH 1,912,823

SETTING TOOL Filed Dec. 16, 1932 2 Sheets-Sheet 2 Patented June 6,

ATENT OFFICE.

, WALTERiwcnuitcni'on ous'rorr, TEXAsfAssIe'rmneF QNE IA F 'ro TEXAS mom "*WoRKssnnns donrona'rron;0E nonswon; TEXAS; AbonnonA'rIoN on'rnxas 1 i it SETTING TOOL An object of the invention is to provide bf peeke- I'nay be set in a Well; and which Hmay be easily detached from the packerand refrnoyed fromlthe W611. 1 I

nother; b "eet of th inventihn is to prol vide novel .nieans for connecting the setting t 01 to the packer support and Which will 10 preyent the premature igexpanjsion of the packer hile going intgthe; ell butfivhich may be disconnected from the packer sup fportBWit-hout substantial injury to the convlfiyneetedto the'pac ker supporti 1 y XVithfthefaboye and other ob eotsfinv ew the inventionhas particular relation to eertziin ribs e1 features of construction, operaeon and arrangementpt: parts," an example w 2oefvthih is givenin thlsspeoificationand w teeth 10 to engage the teeth illustrated infthe accompanying drawings Figure 1 shoyvs aside View partly insepumber the upper end, of the sett ng tool; b. 51 FigureQQ shows a cross sectional View taken on thehneQ-QOfFigure 1.

Figure? sh iv a side VIGW partly in secfid pf the lower'end oflthe tool shown fFigu re 4 shoivsq'alsideyie'vy partly in section of the paeker support and packer showing the latter set] Titriio'ffthemodified form 1 settihg e001:

sho ing atta ea ,45

tiee to set a screen orpertoratedpipe in the "ii lbepp t he rimmin u n t lthenfs'et pfackerfb the screen fand thefsurrounding Qasingfor other alls Toff thehvelh i This invention relates to a setting tool.

i Shutting tool whereby a: conventional type 2. external downwardly pitched rathet teeth and said upper end of the paeker is secured to sald coupl ng, 111 any manner preferred,

9 Whoseinner side has the upwardly pitched onneoted to the packersju aport and showa modified seetion of the lower end ofsaidsetting tool In Completing a Well itis common praeetween the upper end of Applicationfiledubeeember 16,} weasel-m1 No. 647,584.

fronrthis screen there is a tubular support The upper end ot H115 support hasthe Around this support there is an expansiblepaeher def any conventional construction Whose lower end may be seeuredto the support In any preferredinanner, as shown In the present illustration the numeral designates the sei'eenor other pipe to be set in the Well and connected to and upstanding by the Wire Wrapping Aroundthepack er support above the packerthere is a conrounded by theupper end ofthe packer 4:

as by the Wire Wrapping 7. The coupling 6 hasthe inside downwardlycouvergin g seat 8 oh which is seatedfthe wedgeshaped dog There is the upstanding settingnipple 11 whoseiower endis serewed on to the redueed upper endrof the coupling hand Whose upper end 1sipreferably formed into an outwardly flared seat 12. i

r The numeral 13 refers to an operating string of'pipe which extendsto the ground surface andthrough which the sereen,'packp and setting tool may beloweredandthe packer set and the tool then detaehedand witi idrawn; Attachedto the lower enddof the string 13 is the enlarged coupling '14 Whose lower end is provided With an inside annular shoulder lb and also Withthe inside "vertical keywaysm beneath said shoulder.

There is) a tubular eonnectihg nipp1el7 "Whose lower end is connectedinto the upper end of the packer support 2 by means of the left hand threads 18 andwhose upper end is extended up into the coupling 14 and hastheeniarged head 19 which restson the shoulder and 1 above which there is the peeking assembly 20 consistingof the con "ventionai upwardly Opening cup ring and retaining gland Commonly used. The conneeting nipple 17 has the external longitudinal keys 21 hose upper endsare spaced beneath the head 19,5 The apparatusdis asseinbled to be let down into the bore shown in Figures 1 and 3 with the lower end of the connecting nipple 17 screwed into the upper end of the body 2 and with the head 19 resting on the shoulders and the lower end of the coupling 14. above the upper ends of the keys 21 and with said keys out of alignment with the keyways 16 and the packer 4; collapsed. As so assembled and connected to the upper end of the screen 1, 10 said screen packer and setting tool may be let down into the well by means of the string 13 until the lower end of the screen rests on the bottom of the well. Thereupon the string 13-may be turned to carry the keyways 16 into alignment with the keys 21 and the string and coupling It then further lowered and the lower end of said coupling will land upon the seat 12 of the setting nipple 11 forcing said setting nipple downwardly and expanding the packer 4 into close contact with the surrounding casing 22. The-packer will be maintained in said expanded position by the dog 9 whose teeth will engage the teeth 3 to prevent the collapsing of the packer. It desired the coupling 6 may have alsothe flexible upstanding arms 23 whose inner surfaces are toothed to engage the ratchet teeth 3 and to form additional means for holding the packer expanded.

In the form shown in Figures 5 to 8 inclusive there is the enlarged coupling 14 connected to the lower end of the string 13 whose lower end is reduced in diameter and provided with the tapering internalthreads 24; and the vertical key ways 25 leading from said threads down to the lower end of said coupling 14. In this form there is a connecting nipple 17 whose upper end is flared and provided with the external threads 26 which may be screwed into the threads 24:. The lower end of this nipple is screwed into the upper end of the packer support 2 by left hand threads and said nipple 17 has the vertical keys 21 thereon. In other respects this form of setting tool is similar to that shown in Figures 1 to 4 inclusive. In assembly the nipple 17' is screwed into the packer support 2 and the threads 2%, 26 connected and the entire apparatus with the screen attached, then lowered into the well until the screen lands on the bottom of. the bore. Thereupon the operating string 13 is turned to the right to unscrew the threads 24 from the threads 28 and the coupling 14 is then lowered and turned to align the key- 7 ways 25 with the keys 21 and then lowered to land on the settingnipple 11 which is moved downwardly to expand the packing at as hereinabove explained and said packer is maintained in an expanded position by p the means hereinbefore described.

hen the packer has been set the setting tool of either form may be released for withdrawal by a further rotation of the opcrating string 13 to the right whereupon the left hand threads 18 will be disconnected from the packer support and the operating string and setting tool then withdrawn. It is to be noted that While the threads 18 are being unscrewed they will sustain only the weight of the connecting nipple 17 or 17, and not the weight of the entire operating string 13 and consequently said threads will sustain very little wear and will not be liable to be injured and therein one of the chief advantages of this type of setting tool resides.

The drawings and description describe what is now considered to be a preferred form of the invention by way of illustration only, while the broad principle of the invention will be defined by the appended claims. 7

That I claim is z 1. A packer setting tool comprising a coupling memberadapted to be connected to an operating string, a connecting nipple whose upper end' is telescoped into said cou-.

pling member and .whoselower end is adapted to be connected to a packer support, means connecting said nipple to said coupling member and being releasable by the relative rotation of said coupling member.

to permit the descent of the coupling mem ber relative to said nipple and means for locking said coupling member and nipple against relative rotation upon such descent.

2. A packer setting tool comprising a cou-,

pling, an operating string connected to said coupling, a connecting nipple, a support to which the lower end of the nipple is threaded, means connecting said nipple to said coupling and releasable upon the ro-,

tation of the coupling to permit'said coupling to descend and means arranged to clutch the coupling with said nipple upon the descent of the former, whereby said nipple may be turned with. the coupling and,

unscrewed from said support.

3. A packer setting tool comprising a coupling whose upper end is adapted to be connected to an operating string, a connecting nipple whose upper end is telescopically re-, lated to said coupling and whose lower end has left hand threads for connection to a packer support, means for connecting said coupling to said nipple said means being releasable upon the turning of said couplingv member relative to said nipple whereby the coupling may descend and means for interconnecting the couplingand nipple for simultaneous rotation, upon such descent, whereby said nipple may be unscrewed'from said support.

4. In a packing device having a packer support, an expansible packer thereon and erating string, a connecting nipple whose ous rotationupon such descent.

1 5. I11 a packing device having a packer support,- an expansible packer thereon and a setting nipple arranged to actuate the packer; a setting tool comprising a coupling member adapted to be connected to an oper- Iatingstring, a connecting nipple whose lower end is threaded to said support, means for connecting the upper end of said connect ng nipple to said coupling, said. connecting means being formed to be released upon the rotation of said coupling to permit the cou pling to descendonto said setting nipple whereby said packer may be expanded and means for connectingsaid coupling and connecting nipple for simultaneous rotation, upon such descent, whereby said connecting nipple may be unscrewed from said support.

6. In a packing device for wells and having a packer support, an expansible packer thereon and a setting nipple by means of which the packer may be expanded;a settingtool comprising a couplingadapted to y be connected to an operatingstring, a tubular connecting member whose lower end has, a threaded connection with the upper end a of said support, means for connecting the upper end of said connecting member to said member, said means being releasable upon means for interconnecting the coupling with sald connecting member, upon such descent,

whereby said connecting member may be threaded connection, said clutch means comprising a longitudinal key and keyway one on the connecting member and the other on the coupling arranged to intermesh such descent of the coupling. 4

In testimony whereof I have signed my name to this specification. i I y WALTER L. CHURCH.

rotated by said coupling to disconnect said I y upon coupling to prevent the relative longitudinal movement of said coupling and connecting the rotation of said coupling to permit the coupling to descend onto said nipple to effect the expansion of the packer, clutch means connecting member, upon such descent,

ing a packer support, an expansible packer thereon and a setting nipple by means of for interconnecting the coupling with said whereby said connecting member may be rotated by said coupling to disconnect said threaded connection. a

7 In a packing device for wells and havwhich the. packer may be expanded; a setting tool comprising a coupling adapted to be connected to an operating string, a tubular connecting member whose lower end has a threaded connection with the upper end of said support, means for connecting the coupling to prevent the relative longitudinal upper end of said connecting member to said movement of said coupling and connecting member, said means being releasable upon the rotation of said coupling to permit the coupling to descend onto saidnippleto effect the expansion of the packer, clutch

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