US1035850A

US1035850A - Deep-well packer.

Info

Publication number: US1035850A
Application number: US48936509A
Authority: US
Inventors: David W Black
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-04-12
Filing date: 1909-04-12
Publication date: 1912-08-20
Anticipated expiration: 1929-08-20

Description

wn'Nsses D. W. BLACK.

DEEP WELL PAGKER.

APPLGATION FILED APR. 12. 1.909.

Patented Aug. 20, 1912` 3 SHEETS-SHEET 1.

IN VENTO R and WVM-4MM@ am D. W. BLACK. DEEP WELL- PAGKER. APPLIOATNgFI'LBDiAPR. l2, 1909.

a SIETSAHEBT s.

Patented Aug. A20

' DAvID w. BLACK, or' BUTLER, PENNSYLVANIA.

DEEP-WELL PACKER.-

Totali whom-#may concern Beit known that I, DAVID IV. BLACK, of Butler, Butler county, '.Iennsylvania, have ASpeciication of Letters Patent. Application fueaprii miens, serial N'o. 489,365.

. invented a.v new and useful Deep-Tell Packer, of which the 'following is a full,

`clear,{and exact description, reference being v'had .to @the vaccompanying drawings, forming part of this specification, in which- Figure l' isa. side elevation showing one fr'mofmy improved packer in unpacked positionin the well; Fig. 2 is a similar view showing the packed position; Fig. 3 is a view similar to Fig. 2,' showing an anchor packer; Fig.14 is an enlarged sectional side elevation showing the details of the' form l of Figs. 1, 2 and 3; Fig. 5 is' a partial see-- vltion lshowing'the preferred formoffattachment after Athe tubing has been removed; 'Fig-Gis' a' view similar to'Fig. 1,' showing myinvention without'theA use of the Ilockingl dog or clutch; Fig'. 7 is a view similar to Fig. -1, .showin the invention applied to a diskpacker; F1 isa sectional view corresponding to ig.` 5, showing the 'attachment of. my device where oil and gas tubing are both.4 used; and Fi-g. 9 is a sectional view of my jpackin device seated on a cut sect-ion of'casing. ,ig's. 10 and 1l vare de- #l views illustrating a construction in which the packer may be lowered Aby a cable.

M. invention' relate'sto-'the class of packbr deep wells.and its object is to provide a packer-"which will allow the tubing in lace. eretofore, where' packers have been at. 'tached to and lowered, bythe tubing, the Vpacker must be removed whenever the tubing was withdrawn.. The-removal of the jpacker is not only -dit'icult and costly; but. this also entails 'the further labor ofreplacing the packer at or nearly thesameloca- .tion when the ltubing is again lowered.

50. f ,may extend through it .and thus pack the My 4invention overcomes this diiculty, and it consists in a packer',` attached to and lowered by thetuloing, but from which the tubing may be. detached and withdrawn while leaving the packer in the well.

The invention further consists in providing'a packer so arranged that the tubing well at any desired point, whileallowing withdrawal ofthe tubing.

In he drawings, I have shown my iinprovernent` as applied to a packer of the Masseth type, but it will be vunderstood to be withdrewn'while leaving the packer PatentedAug. 20,1912'.

that -my improvement may applied to any type of packer which is attached to and carrying out the packing operation. In the drawings, referring particularly to the form of'Figs. l, 2, 4 and :2 represents the tubular frame of the packer, and 3 the expansible packer tube, made preferably of rubber, which tits around the tubular frame and bears at its upper end againsta shoulf der at the lower end of a coupling-sleeve 4C, screwed or otherwise secured to the upper portion of the frame 2. Atits lower end, 'the' expansible rnbber sleeve lits against the upper end of a hollow ,sleeve extension 5, Screwed or otherwise secured tb the sliding cone 6. The cone 6 fits telescopically around y th Ahollow packer frame 2, and is, movable longitudinally thereof. 7 is a collar or band and is provided with upwardly projecting 'spring arms 5, having leaf springs 9, se-

against the sidesofthe hole, while the upper spade-like ends 10 of the spring arms are arranged .to slide over the cone and be jammed against the wall of the well to afford a resistanceagainst which the acker can be ezgpanded. The arms 8 are loc red or heldfrom action by anyusual or suitable means which can be engaged4 4and released. by. a rotary movement ofA the frame. In using this type of packer, it is usually made right-handed, and is screwed on to a joint orstand of pipe or casing with the ring 7 locked. The4 packer is theulowered in the well, either at-.the end of the casing or between successive sections ofthe casing, and. when at t-he desired point the'pipe or cas- Turning the casing to the leftunlocks' the sleeve or collar 7 andthe lowering then.. causes the slips 10 t-o' be jammed between Athe cone and the sides' of the well. This aff fords a resistance, and'thewe'ight ofl the 'casing resting on the rubberexpands it to lpack the' well. In resetting at-a lo'wer point, the pipe. or casing is raised, then turned to. .the `right, and then low-ered and. packed as it is not necessary to turn the pipe or casered in the newposition.

' T he above4 description, to the -wellwhich surrounds the frame Below the coneA ing is turned to ,the leftan'd then lowered.-

before; It `it is to be resetat a higher point,V

\ing, as it may be pulledupand then low lowered by the tubingsior line, whether it cured thereto.. The springs 9 normally bear packers ,have been used b v screwing thepi pe 1efthanded thread, which engages a correknown Masseth type of packer.; and Il l 'and the barrel or frame "Bis provided 'with will now describe my improvement as applied to such packer. As above stated, these or casing to their upper ends orto their upper and lower ends. Instead o-this connection, I provide a rollow plug 11 of two different diameters between

successive sections

12, 12 oii the tubing, This plugin its larger external. diameter \is provided with a 'sponding internal thread in the upper portion of the sleeve 4 of the packer. "lhe packer is hollow throughout, thus allowing the tubing to extend down through' it, the

plug 11 'forming the only connection be' -tween the tubing andv the packer.

'hen this packer has been packed in the well. and it is desired to remove the tubing, all that is necessary is to turn the tubing in a righthanded direction, thus unscrewing the plug l1 from the. iacker when the yentire tube may be lifte outl of. the well. This un- -screwing has no effect upon the joints of the `tubin nor upon unlocking the packer, since bot the packer. `and the Ajoints are right-handed. lvhen it is .desired to replace the tube, the same plug 11 may used, and when this plu a reaches'the upper end of the packerfthe trilling may then be turnedin a left-hand direction to rengage the plug with the packer. .In order. however, to

Yavoid the necessit)1A for thus re-screwing the tubing to the packer, I= pr'eferabl)T interpese between the lengths of the tubing'a short- 'section 13, as shown in Fig. 5, having a' circular disk or seat 14,"under which is placed a surrounding gasket 15. This gasket is preferably slightly conical, and when the tubing -is lowered' ,to a point where the gasketreaches the top of th'e packer, the weight of the tubing will force the gasket down on and into the upper'end of the. packer, thus I'sealing this joint. In this case, the tubing will extend through the' .packer sis-before.v

In order to prevent any .accident-al unpacking during the taking out or putting' in 'of the tubing, .at any time when it is dis-y sectionali'zed rin' extension5. Between thelower lend of this 'the' cone` 6, .is placed a spiral 'spring 18,

connected from' the packer, on account of the removal of the weight therefrom,1' preferably provide'al clutch device, which will lock the' rubber in lez'tp'anded position and prevent relative movement of .the abutmentl 5 and 4the packer tube orframejQ. In the form shown, this clutch device consists of a this, ring being i'vided'into a plurality of pieces, "and -having a conical' portion' 17, which is ada ted to fit against a corresponding conical ace on the inner portion of the sectionalized ring 16 and the upper lend of 'which Enormally forces the 'cone ringupvmlvdlyj,@andl inwardly The sectionaliaed 16,`as sho-Wn; in Fig. 4,

BEST AVAILABLE C-v ring is provided with inner ratchet teeth,

tion, therefore, the spring ring will lock the' lcone in the position where the rubber is eX` panded, thus. preventing accidental unpacking.

In Fig. 3 the slips, cone'. slip ring7 &`c., are p done awa)1 with, this showing ananchor or bottom packer, 'In this case, the lower sec` tion 19 is arranged to slide overthe tubular frame of the packer, so that when this sec. tion 19 reachesthe shoulder' 20 in the well or bottoni of the well, the weight of the tub-A ing or casing will then` expand the rubber b v the packer ra'me sliding down thiou h the sleeve 19, which forms the resistance, or

expansion. In this case again, the -clutch .device may be employed. for locking the sec 'tion 19in the posit-ion 'where therubber is held.expanded.-

In Fig. 6, I show .the same form ot invention asin Fig. 1. except that instead of using the clutch to hold 'the packer in packed position, I secure to the upper end ofv the packerA a lengt-h of4 casing 21. Thiscasing `1s provided at its upper end with a, 'coupling sleeve 22, corresponding to the sleeve 4 of Figs.,

1 and 4,' this having the lei't hand connection with the hollow plug 23,V corresponding to' the plug 11 of Fig-4. In this case, the 105 weight of the length or lengths of casing 21 will. hold the packe-rv iny packed position' when the tubing 'is removed. 'This is of adf vantage whereit maybe desired to cha-'nge the positionof the'packer, because it willbe ditiicultto change its position where the locking clutch device is lemployed.`

In Fig. 7,' I-show-Iny invent-ion a's'applied toa spring disk packer in lwhich 24' i'sthe..

yusual coil spring, 25 theV slip ring, and 26 the slips. Thetubular frame l27 is slotted in a yvertical direction onlus7 to receive a pin 28, onthe slip ring inor'der to prevent turn-l' ing. v The dislris, ofcourse, notsho'w'n as'it 'is supposed to have been broken' before I the` spring'has :thrown the slips up over -the cone, as Ishown Iin thisdra'wing. In this formalso, instead of the fitting 14, shown4 in. Fig'. 5, I provide in thelength of oil tubing 29 a large' fitting' x30,- 'ha'vinr its lower 'end shaped-to receive .the rubber gasket 31, which conresponds to gasket 'l5 of Fig; 5..V This gasket fitsdown on the top of a coupling 32,- secured to the upper fend of a. cas# ingseotion'or' sections 33, vvflliich are screwedl las - to the. upper end othe-packenas shown in.

. advantage in packing casing 'of packer.

.PYOPQr freleasedfand drawn out. an anchor packer7 the Casin 'can be loweredA detail in Fig. v8.- The itting has two openings through-it, the oil 'tubinfJr 29 being secured in one opening, while the gas tubing 34 extends through the otherholeboth sets' of tubing Vextending through closely fitting age. This forni is of special advantage where it is desired to save the gas and atthe Isame time obtain the oil; lt will, of course, .be-understood that the 'fitting 30 is put in place after the tubing has been removed and after the'well has been packed with the d evice of Fig. 4 orx, or with any other form The packing device such as yshown in' either Fig.' 5 or Figs. T and 8 may beused to which' has been corroded or eaten through.. "lt often happens that where casinghas been standing'in a well for some time l1t becomes eaten through. ln such-casesheretofore the casingihas been cut belowl the eaten-away portion and a 'packer has been lowered and packed below the'water level'g'or a smaller packerwith tubing attached has' been packed inside of the.remaining section ot. the vtubing below the water .leve-l. ln-the latter case, the'casing need not be cut'. With the use of my improved packing device,-

such a 'well mayeasily be packed off to prevent the'wate'r entering the wel-l by simply cutting otl thecasingbelow thele'aking por' .tion and thenlowerin'g a line'ofgtubilng with the packing device ofeitheriFig or Figs.

7 and 8 upon the-cut end ofthe casing..

This does away with the necessity for a wall or anchor packer and allowsl the removal of" the casing from the cut section upwardly.

Instead of lowering my packer upon a by a 4flexible cable. In this' case, the flexible cable 'would be .provided with-'a detachable..

connection with the top "of' the .packerfso that when the packer" was .lofwereclffto th.- positio'n the lexible- `cable :could be If the .p'a'ckeris upon it and will pack it..` l' allpackers may f tion be used iii this casev with the flexible cable; whichwill pack without. rotation. I In other; f

words, .I do. not wish to' limitiy myselfjto use of tu'binglor Vlowering 'my'packer-.to .p'gsivfi'gures, they numeral' 35 v( le'sign'atgzs' the lower prletting-intool alt the lower. endf'of` the isual string of tools.- This tool isproyided with the squared shank 36',vv which'- engages af 3T, 'havingits .ends enr' upper-.endet the packeri. .The 'packerhas 'been as l it. mayfbe 'lowered .by f ai Il leigiblelr cable,l yOne form of: devicefor'thispurpose is'V illustrated in Figs. 10'.and '1 -l'. In these' seti-in the usual manner, a quick jarring movement of the lcablewill break .the armsy of the transiers'e"member 3T. and thus detach, the letting-in 'toolfrom the packeriz..

The .advantages of myirirjeiition `will be apparent-to'those skilled in -the art.

simplefand'eiiicient means is provided by 4which the packer may be easily and quickly packei. wherein a spring acts to torce -the slips on the cone atterthe ldisk is'broken or bent: or an anchor packer or bottom packer.v I do notliiitend to linutmyself.to the application of my improvement to an)v specific type of packerghaving illustrated the )lasseth packer inerelv to showthe action of mydeviice on one. form of packer. I

'I consider myself to be the first to provide a packer which4 is lowered by the tubing or casing orline. vand' can then be detached therefrom' so as to remove-the tubing or cas-. ing without moving the packer.

claim:

l. The combination with 'a well packer f and a tubing arranged to extend continuously vdown through the packer. of a connector carried by an'interinediate portion of the. tubing and having Va detachable engagements with the packer.v whereby the tubingv maybe disconnected 4from the packerand withdrawn upwardly therethrough. the connetll between the connector and the packer l@cineast-ing of a screw-threaded engagement,

the threads of which are of opposite hand to the/threads of the tubing sections,`-substanitially as described-,i

' 1Q.' The 'combinationwithl-a well packer, of ,aj connector .having -ineans for the 4attachjrn'entof well. tubing thereto. and. havingfa -screw-threaded v connect-ion with the packer v ofiopposite' hand from-the threads lof the tiibi'ng'joints or connectors. the tubing pass-v ing continuously and .freely down through the packer, and thesaiid connector forming the only'comiection between the packer and -ubijng substantially as de scribed.

" 3J The' combination'.` with-,fiwell packer and alfltubingf" arranged. to extend continu- .ousl-y.'.downrthroughxthe paeker,. of i. connectorcarried' by -an'intermediate portion `of the tubing andliavin'ga detachable engageiocl threads ofwhich are-of ment with the'pa'cker, whereby'the tubing ma1 be disconnected from the `packer and Withdrawn upwardly therethrough, the connection between the connector and the packer consistingfof a screw-,threaded engagement, the threads of which are of opposite hand .to the threads of the tubing sections, together with means for -locking the packer in its packing position; substantially as described. 4.3' The combination Withfa well packer d a'tubing arranged to extend. continusly downthrou'gh' the packer, of a connector 'carried byan intermediate portion of the tubing'and having a detachable engage# ment wit wit drawn upwardly.therethroiwh, the connection between Athe'connector and the packer donsisting' of a screw-threaded engagement, l opposite hand to the'threads ofthe tubing sect1ons,. to ether means carried by the tubing for c osing @heup r end of the packer when the co'n nectorns'been removed.

`A deep well packer having a connecting device for tubing arranged .to permit the the packer, whereby the tubing. nia .be disconnected from the packer and' tubing and device to `be disconnected from the packer and withdrawn after the packer operation, and a second device arranged to be'subsequently attached to tubing and to rest upon the Iupper end of the packer or an extension thereof, andclose the same, lsub-v stantially as described.

6. The combination with a well packer having a couplingsleeve at its upper end,

lof a tubing extending, eontinuousl)Y down my hand.

vitnesse's G. M. V IERS., H. M. CoRwIN.

l In testimony whereof, I have hereunto set `DVID W. BLACK. y