US3158201A

US3158201A - Liner hanger and setting tool

Info

Publication number: US3158201A
Application number: US149056A
Authority: US
Inventors: Amos D Springer
Original assignee: ALAD OIL TOOL Inc
Current assignee: ALAD OIL TOOL Inc
Priority date: 1961-10-31
Filing date: 1961-10-31
Publication date: 1964-11-24
Anticipated expiration: 1981-11-24

Description

Nov. 24, 1964 A. D. SPRINGER v 3,158,201

LINER HANGER AND SETTING Toor.

Filed oct. 31. 1961 s sheets-sheet 1 l l 1| N k, /AVV ...i6-N. (W. .MW/ -UH .N .W lh YN Nov. 24, 1964 A. D. sPRlNGL-:R 3,158,201

LINER HANGER AND SETTING Toor,

Nov. 24, 1964 A. D. SPRINGER 3,158,201

LINER HANGER AND SETTING TOOL 3 Sheets-Sheet 3 Filed 001;. 31. 1961 :Mir 1.54 7} f 9 140k .172' .144 1?/ INV EN TOR.

United States Patent() 3,158,2iil LENER HANGER AND SETTING 'IL Amos D. Springer, Long Beach, Calif., assigner to filati @il Toc-l, ine., Long Beach, Qalif., a corporation of Caiifornia Filed Get, 3l, wel, Ser. No. 149,056 16 Claims, (Cl. 16S-120) This invention relates to subsurface well completion equipment and more particularly to a packer-type liner hanger adapted to be run into and' set in well casings and the like pipe strings in earth bore holes.

A principal object of the present invention is to furnish a casing liner hanger which can be run into a well casing on a suspending means, such as tubing or pipe, set at any chosen depth therein,-a pack-ofi effected between the liner hanger and casing, and finally a detachment of the suspending means from the liner hanger for withdrawal from the well, all by right hand rotational and longitudinal manipulation of such suspending means.

Another object of the present invention is to furnish a liner hanger which can be set in any chosen location in a wall casing without the necessity of iirst touching bottom to actuate or control the setting mechanism.

Another object of the present invention is to furnish a liner hanger which can be run into well casing on a suspending means, such as tubing or pipe andby manipulating of the suspendin r means, set at any chosen depth therein, a pack-cfr" effected between the liner hanger and the casing and then, if desired, released from such set and packed-olf condition and moved to and reset at another location in the well.

Another object of this invention is to provide a liner hanger which is self-centering in the casing, thereby insuring proper positioning of the suspending liner or pipe in the well and the proper functioning of the suspending slips and the packing.

Another object of this invention is to furnish a liner hanger which has a substantially uniform bore extend` ing therethrough from end to end, and which is substantially unobstructed upon release and removal of the setting tool therefrom.

The objects of this invention are attained in general by a liner hanger and setting tool assembly having slips actuatable by the setting tool for supporting it in a wel casing, pack-olic means actuatable by the setting tool for sealing the annular space between the hanger and surrounding casing, and detachment means actuatable by the setting tool for releasing the setting tool from the liner hanger for withdrawal from the well after the setting operations are completed, all such operations being performed entirely by combined rotational and longitudinal manipulation of the liner hanger and setting tool upon a suspending, operating string. More specifically, the objects are attained by a liner hanger and setting tool assembly of the aforesaid construction which is provided with slips and means for iirst setting the slips into supporting engagement with the casing at any chosen location in the well by rotation of the setting tool relative to the hanger body, after which the setting tool can be lowered relative to the thus supported hanger body to a position where continued rotation of the setting tool relative to the hanger body actuates means therein to set the packing to seal oilr the annular space between hanger body and surrounding casing, and iinally, in turn, the setting tool can be moved longitudinally to still another position relative to the hanger body where still further rotation of the setting tool relative to the hanger body actuates means to disconnect the setting tool from the hanger body, permitting the setting tool to be withdrawn from the well leaving the liner hanger set in the Wellcasing- 3,l58,20l Patented Nov. 24, 1964 A distinctive feature of this invention resides `in its design which permits the setting tool to suspend the liner and liner hanger weight on the operating string in such manner as to leave the operating string freely rotatable to operate the slip mechanism and the pack-oft" mechanism or any other desired device before disengaging from the liner hanger.

An important advantage of the construction afforded by the liner hanger of the present invention also resides in the relatively thin-walled, large, unobstructed-bore, tubular structure which it provides.

These and other objects, advantages, and features of novelty of the invention will be evident hereinafter.

In the drawings which illustrate the presently preferred embodiment and mode of operation of the invention and in which the same or similar reference characters refer to the same or similar parts throughout the several views:

FIGURE 1 is a View of the assembly of the liner hanger and setting tool, partly in elevation and partly in longitudinal section, as it appears when suspended in a well casing prior to setting. 1

FIGURE 2 is a View similar to FIGURE l showing the liner hanger with the slips set in the casing and the setting tool positioned for setting the packing.

FIGURE 3 is a view similar to FIGURES 1 and 2 showing the liner hanger after completion of setting both the slips and the packing in the casing and with the setting tool positioned for effecting its release and withdrawal from the liner hanger.

FIGURE4 is a cross sectional view taken on 'line 4-4 of FIGURE l.

FIGURE 5 is a cross sectional view taken on line 5 5 of FIGURE 3.

FIGURE 6 is an enlarged fragmentary detailed View, partly in elevation and partly in longitudinal section of the slip actuating mechanism portion of FIGURES 1, 2, and 3.

FIGURE 7 is ay view, partly in elevation and partly in longitudinal section, showing a modied form of a portion of the slip actuating mechanism of the liner hanger.

FIGURE 8 is a View similar to FIGURE 7` showing another modification of a portion of the slip actuating mechanism of the liner hanger.

The apparatus of FIGURES l to 6 inclusive is as follows:

Referring iirst mainly to FIGURE l, the apparatus assembly there shown comprises two main components, namely, a liner hanger, shown generally at lil, and a setting tool, shown generally at 20. The setting tool 20 is retrievably suspended in theV well upon an operating string l2, and the liner hanger into which the setting tool 2li extends is, in turn, detachably supported thereon in readiness for setting in a casing 14 of a typical well or earth bore hole.

The liner hanger it) which forms an elongated, generally tubular assembly, havinga substantially uniform outside diameter from end to end thereof suitable for reasonp ably free running into casing and with clearance suitable for setting of packing therebetween, comprises in order from bottom end to top thereof, a hanger adapter sub 16 connected by means of left hand threads 21 into the lower end of a hanger body 22, the top end of which, in turn, is threadedly coupled at 24 to the lower end of a packing sleeve 26, the upper end of which is nally connected by an elongated right hand threaded section Zt; into the lower end of a screw-down packing compression head 30. The adapter sub lo is provided within the lower end portion thereof with threads 1S for connectionv Immediately above the before mentioned left hand threads 2 an extending upwardly as a continuation thereof within the lower end of the hanger body 22 is a left hand threaded section, as shown at 32:, of sufficient length to threadedly and longitudinally adjustably carry therewithin a concentric, slip actuating sleeve 34. The bore of the slip actuating sleeve 34 is formed with a number of diametrically opposite, longitudinally extending recesses or slots 36 for engagement by bow springs 37 for rotating the slip actuating sleeve on the threads 32 relative to the hanger body, whereby the longitudinal position of the sleeve 34 may be shifted, as more fully described hereinafter.

The upper end of the slip actuating sleeve 34 is coupled in longitudinally fixed, but rotatably slidable relation with the lower end of an interconnecting ring 33 by means of a number of set screws 4d, which extend radially from a hanged portion 42 of the interconnecting ring 38 into circumferentially slidable engagement Within an annular groove d4 formed around the upper edge of the slip actuating sleeve 34, as best shown in FIGURE 6. The slip actuating sleeve 34 is thus rotatable upon threads 32 for longitudinal movement without imparting rotational movement to'the interconnecting ring 38.

Longitudinally siidably contained within the bore of the hanger body Z2 adjacent the upper end or the slip actuating sleeve 3d is a slip rein anchor sleeve d, which is slidably supported at its lower end within the bore t of the before mentioned interconnecting ring 3S, and its cavity which, in effect, is divided into an upper portion l and a lower portion 53 by an annular' slip rein anchor ring Sli formed integrally with the exterior, midsection of the said sli-p rein anchor sleeve ed. Contained and equally circumferentially spaced apart within the lower portion S3 of the annular cavity -are a plurality of longitudinally extending helical springs Se, retained in such positions by means of a corresponding number of circumferentially spaced apart lower and upper cylindrical stubs S5 and 59 formed integrally with the upper end of the interconnecting ring 38 and the lower edge of the slip rein anchor ring 54, respectively. The upper and lower ends of the helical springs Se are formed with laterally inwardly extending terminal attachment portions which extend into anchor holes and 57 formed diametrically through the upper and

lower stubs

59 and 53, respectively, as best shown in FlGURE 6. The helical springs 56 are thus adapted to transmit either compression or tension forces between the interconnecting ring 38 and the slip rein anchor ring 54.

Anchored at their lower ends to the outer edge of the slip rein anchor ring 54 by means of radial screws et? are a number of slip reins 62 which extend upwardly therefrom through upper annular cavities, as shown at Si, and

thence slidably through longitudinal passages 64 into a corresponding number of circumferentially spaced apart slip recesses 68, where each such slip rein is connected at its upper end to the lower end of a wedge shaped, wickered casing slip ed. Each slip recessl o8 is formed with an upwardly, outwardly sloping slip wedging bottom surface 7? upon which the inner surface of the slip is longitudinally slidably supported.

The upper end of the hanger body Z2 makes threaded connection at 24, as before mentioned, to the lo` 'er end of the packing sleeve 26. The intermediate portion of the exterior surface of the packing sleeve 26 is formed with a smooth, cylindrical interval of reduced outside diameter, as shown at 72, terminating at its lower end in an inwardly beveled shoulder '74 and terminating in eifect at its upward end at the lower end of the threaded section 28 and the lower annular edge of the screw-down packing compression head 3i?. Encircling the said portion of reduced diameter 72 of the packing sleeve 26 and L of reduced diameter relative to the upper portion thereabutting the lower annular edge of the packing compression head 30 is a lloating packing compression ring 78. A plurality of resilient packing rings 76 also encircle section '72 and normally in their unexpanded condition extend between the shoulder 7d and the lower end of the compression ring '78 ilush with the maximum outside diameter of the packing sleeve 26 and the liner hanger body lib, as shown in FIGURE l. in operation, longitudinal compressive force is applied to the packing rings 76 between the packing compression head 3@ and the shoulder 74 to compress the packing rings 76 longitudinally and thereby expand them laterally into sealing engagement with the inside surface of the surrounding cas- [he upper end of the packing compression headl 30 is beveled in a downwardly converging direction, as shown at Sti, to yfacilitate the entrance therein of the setting tool and any tubing or other apparatus which may subsequently be run into or through the lliner hanger. The upper end portion of the pack-olf `head 30 is also formed with a plurality of longitudinally extending, rectangular shaped, clutch slots 82 for engagement by correspondingly positioned and shaped clutch dogs 83 of a clutch nut 84 fixed to the upper end of the `setting tool, as hereinafter lmore fully described.

rIhre setting tool Ztl comprises an elongated, generally tubular assembly having a maximum outside diameter permitting it to extend through the bore of the liner hanger lil, as best shown in FIGURES 1 and 2.

The .upper end of the setting tool carries the before mentionedclutch nut 8d, the upper end of which makes threaded connection at 86 with the lower end of the :before mentioned operating string l2 from which the whole casing hanger `and setting tool `assembly is initially f suspended and 'by means of which the liner hanger and setting tool is manipulated. Formed integrally with the clutch nut S4 .and located about the intermediate outside `eircinnference thereof are a plurality of rectangular, downwardly extending clutch dogs S3 adapted when clutch nut S4 is lowered into engagement with the top of the pack-od head E@ to engage clutch slots 82 therein, .for rotation of the pack-off head 3u relative .to the lbalanceV of the liner hanger body in the operation of setting the hanger.

Threaded-ly connected lat 99 to the lower end of the lclutch nut Se and normally extending downward therefrom into the bore of the liner hanger body and threadedly connected together in end to end relation, is a Spacer sub 92, a threaded coupling 94, and .a kelly member'96. The kelly member 96 is formedat its upper and lower end portions 98 and lull, respectively, with round or cylindrical exterior sections, and along an intermediate portion thereof with a hexagonal exterior section 162. Threadedly connected at l@ to the lower end of the kelly member go is a lcylindrical setting tool spring mandrel 1%, the lower extended Iportion N8 of which is of, thereby forming at the juncture of the upper and lower positions thereof a downwardly facing annular shoulder liti. Formed in said :shoulder lll? is a downwardly facing annular undercut groove i12 4adapted to longitudinally, slidably receive the upper ends M4 lof cachot a plurality of bow springs lid.

Longitudinal-ly -slidably positioned on the lower portion idd of the setting tool spring mandrel 166 is a spring vcage ring 113. The spring cage ring 118 is provided in the innerbore thereof with a plurality of circumferentially spaced `apart slots extending longitudinally therethrough, each such slots receiving the lower end 20 of each of the bow springs lilo. A plurality of set screws, as shown at 122, extend lradially through theVV spring cage ring M8 and centrally through holes in each cf the lower ends of the bow springs and into locking contact with the exterior surface of the llower portion letti of the spring mandrel lilo, thereby lixing the lower A ends of the bow springs in the spring cage ring and also xing the spring cage ring longitudinally immovable upon said llower portion of the :setting tool spring mandrel. It will be noted that bow springs 116 are formed with intermediate, laterally extended straight sections 116a which, in the relative positions of the liner hanger and `setting tool shown in FIGURE 1, make locking engagement Within the before mentioned slots 36 in the fbore of the slip actuating sleeve 34.

The lower end of the lower portion 108 of the setting tool spring mandrel 1136 is threaded at 124 for connection to any device or additional equipment to be `suspended from the lower end off the setting tool.

Surrounding the kelly member 96 and making threaded connection by means of left hand, square threads 126 in the upper end of the hanger body portion 22 is a `running and releasing nut 12S. The running and releasing nut 128 is formed with a hexagonal passage 129 'therethrough with which the intermediate, hexagonal seetion 132 of the kelly member 96 makes non-rotatable, longitudinally slidable engagement, when positioned in an intermediate position as shown in FIGURE 3. When the setting tool is positioned within vthe liner hanger, as shown in either 'FIGURE 2 or FIGURE 1, however, the cylindrical end sections 98 or 10u, respectively, are located within the hexagonal passage 129 4through the running and releasing nut 128 and thus in operation in such positions, as hereinafter described, the setting tool may be rotated within the liner hanger without rotating the running and releasing nut 128.

Retained in `an undercut recess 136 formed in the Ilower end of the running and releasing nut 128 is a thrust swivel bearing 132. When the liner hanger and setting tool are in a suspended position prior to setting, as shown in FIGURE 1, the weight of the liner hanger assembly is carried through .the square threads 126, the running and releasing nut 128, and through the swivel bearing 132 to an annular shoulder 134 lformed on the upper end of the setting tool spring mandrel 106 and thence through screwed joint 1119, kelly member 96, coupling 94, spacer sub 92, threaded joints 91) `and 86 to the operating `string 12.

Operation of the apparatus of FGURES 1 to 6 inclusive:

The liner hanger 1t) containing the setting .tool 20 is first lowered into the well casing on the operating string 12 to the location therein where it is to be set, at which point the setting tool 2d and liner 'hanger assembly 16 will be suspended upon the operating string 12 with the casing hanger and setting tool occupying the relative positions shown in FIGURE l, in readiness for setting. At this initial stage in the setting operation, the weight of the liner hanger assembly 1t? is supported on the shoulder 134 of the setting tool mandrel 106 through the running and releasing nut 128 and swivel bearing 132, and the straight sections 116 of bow springs 37 are positioned in engagement with ythe slots v36 in the bore of the slip actuating sleeve 34.

Next, right hand rotation is imparted through the operating string 12 to the setting tool assembly 2li and thence through the bow spring 37 to the slip actuating sleeve 34, with the result that the slip actuating sleeve 34 is screwed upwardly on the lett hand threads 32 within the lower end of the hanger body 22. Meanwhile, rotation of the hanger body is prevented by means of a cage spring or the like device (not shown) making rictional engagement with the inside of the surrounding casing or bore hole wall. Such cage spring may be suspended below the hanger body by attachment of threads 1S to the hanger adapter sub 16.

The resultant upward movement of the slip actuating Sleeve 34 is transmitted through the interconnecting ring 38, helical springs S6, slip rein anchor ring 54, and slip reins 62 to slips 66, which slips are thereby caused to slide upwardly and outwardly upon the slip wedging surface 713 into engagement with the inside surface of the casing 14, as shown in FIGURE 2, at which time the hanger assembly is supportable within the casing upon the slips. A slight lowering of the setting tool 20 by lowering the operating string 12 causes the slips 66 to be wedged into gripping engagement with the surrounding casing, whereupon the weight of the liner hanger, liner and the like apparatus attached to the liner hanger, is transferred to the casing, and the liner hanger is no longer dependent for support upon the setting tool and operating string.

Following the before described setting of the slips 66, the operating string 12 is lowered until the clutch nut 84, at the top of the setting tool, comes to rest upon the top of the packing compression head 3&1 at the top of the liner hanger yassembly and clutch dogs 83 are thereby placed in engagement with the clutch slots 82, at which time the liner hanger and setting tool occupy the relative positions shown in FGURE 2. It is to be noted that in the latter relative positions of the hanger and setting tool the upper round section 98 of the kelly member 96 is located within the hexagonal passage 129 through the running and releasing nut 128 and thus is rotationally out of engagement therewith.

Next, the setting tool assembly is again imparted right hand rotation by the operating string 12 thereby, through the action of the clutch nut 84, screwing down the packing compression head Si) upon the threads 2S and thereby forcing the floating packing compression ring 78 downward toward the shoulder '74. Longitudinal compression force is thus applied to the packing rings 76 to expand them laterally into sealing engagement between the packing sleeve section 26 and the inside surface of the surrounding casing 14.

Next, upon completion of the packing setting operation, the setting tool assembly is elevated by the operating string to a position relative to the liner hanger, where the intermediate hexagonal section 102 of the kelly member 96 extends through and in engagement with the matching hexagonal passage 129 in the running and releasing nut 128, as shown in FKGURES 3 and 5.

Next, the setting tool assembly, including the kelly member 16 is again imparted right hand rotation through the operating string 12, whereupon the running and releasing nut 128 is rotated relative to the hanger body 22 upon the lett hand threads 126, and thereby is released from connection with the liner hanger body, after which the setting tool is free to be withdrawn from the liner hanger and from the weil, leaving the liner hanger rmly Set and packed oil in the well casing.

lf it is desired to release the liner hanger for movement to another position in the well casing, the setting tool assembly 2t?, if it has been previously withdrawn, is lowered into the liner hanger to a position approximating that shown in FIGURE 3, at which position the lower end of the running and releasing nut 1.28 initially rests upon the upper end or the square, lett hand threads 126, following which, by careful left hand rotation of the operating string and setting tool, the nut 123 is threaded into the threads 126 and thereby into connection with the upper end of the liner hanger body to the same position shown in FIGURE 3. Following the thus re-established connection between the running and releasing nut 128 and the liner hanger, the setting tool is elevated to a position relative to the liner hanger and running and releasing nut 12S approximating that shown in FiGURE 1, whereupon the condition for supporting the liner hanger upon the setting tool through the thrust bearing 134 is re-estabiished and the bow springs 37 are also repositioned in engagement with the slots 36 within the bore of the slip actuating sleeve 34. Following this, left hand rotation is again imparted to the setting tool through the operating string 12 with resultant left hand rotation of the slip actuating sleeve 34 releative to the liner hanger body which screws the slip actuating sleeve 34 downward therein. This downward screwing of the actuating sleeve pulls the interconnecting ring 3S downward and introduces tension in the helical springs 56 which tension is, in turn, transferred to the slip rein anchor ring 5d and thence to the slip reins 62 and to the slips 66.

The setting tool is then elevated slightly to apply ing force to the liner hanger through the kelly, kelly swivel bearing 132, and running and releasing nut 1.23 sufficient to release the loading upon the slips ed, whereupon the slips are freed from wedging engagement with the casing sufficiently to be pulled downward by the -before described tension in springs 56 and retracted within their slip recesses d3, thereby to re-establish the relative positions of the apparatus shown in FIGURE 1. lThe whole setting tool and liner hanger assembly can then be either withdrawn from the well or moved to a new location within the well casing and the before described setting operations repeated.

The apparatus of FIGURES 7 and 8 are as follows:

Referring now primarily to FIGURE 7, a modified form of the liner hanger assembly similar in some respect to that hereinbefore described in connection with FIG- URES 1 to 6 inclusive, is shown. In the liner hanger assembly of FIGURE 7, the construction is such as to form an elongated, generally tubular assembly having a substantially uniform inside and outside diameter and comprising from bottom end to top thereof a hanger adapter sub 16 which is threaded by left hand threads at 21a into the lower end of a hanger body 22a and the top end of which is connected by threads IE5 to an upper hanger body portion 13o which, in turn, is adapted to be threadedly coupled at 2da to the lower end of the packing sleeve which may be of the same construction as the packing sleeve 26 hereinbefore described in connection with FIGURES 1 to 6 inclusive.

Immediately above the before mentioned threads la and extending upwardly therefrom within the lower end of the hanger body 22a is a continuation of the left hand threaded section 32a of sutiicient length above the connection with the liner adapter sub lo to carry threadedly and longitudinally adjustably therein a concentric, left hand threaded slip actuating sleeve 3de. The bore of the slip actuating sleeve 3de is formed with a number of diametrically opposite, longitudinally extending recesses or slots 36a similar to slots 35 hereinbefore described in connection with the slip actuating sleeve 3d, for engagement by bow springs of the setting tool for. rotating the slip actuating sleeve 34a on the threads 32a relative to the lower hanger body portion, whereby the longitudinal position of the sleeve 34a may be shifted longitudinally therein in the same manner as creinbefore described in connection with the slip actuating sleeve 34. The slip actuating sleeve 3dr: is similar to the hereinbefore described slip actuating sleeve 3d, except as hereinafter' described.

The upper end portion 13S of the slip actuating sleeve 34a is of reduced outside diameter relative to the lower portion thereof, forming at lthe change in diameter junction thereof an upwardly facing annular shoulder li'. The upper end portion 133 of the slip actuating sleeve 34a makes a longitudinally sliding fit within an intermediate bore section Idil of the hanger body 22a which is of reduced inside diameter relative to the inside diameter 142 of the adiacent bore of the lower portion of the hanger body, forming at the change in diameter junction thereof a downwardly facing annular shoulder lddopposite the beforementioned upwardly facing annular shoulder 137. A lower annular chamber Ido of variable volume is thus 'formed between the upper and lower annular shoulders 137 and ldd and between the surface of the inside diameter 142 of the hanger body and the surface of the outside diameter of the slip actuating sleeve E33, respectively. G-ring seals are provided for the annular chamber ido, as shown at ldd and lStl.

lift- The upper end portion of the hanger body, at a section 152 extending downwardly from threaded portion 135 and downwardly from the lower end 153 of the upper pontion 136 ofthe hanger body, is of reduced outside diameter relative to the balance of the lower portion of the hanger body, forrrdng at the change in diameter junction thereof an upwardly facing annular shoulder 154. Longitudinally slidable upon the section 152 of the liner hanger body between shoulder ld and downwardly facing lower end 153 is an annular slip rein ring E56.

The slip rein ring 156 has formed integrally therewith and extending axially upwardly and downwardly therefrom sleeve members i555 and 169, respectively, of larger inside diameter than that of the slip rein anchor ring portion thereof, sleeve member b being longitudinally slidable over the lower end portion ofy the upper portion 136 of the hanger body and the sleevelotl being longitudinally slidable over an intermediate, exterior section to2 of the lower portion of the hanger body 22a. An annular chamber 16dof variable volume is thus formed between shoulder 154 of the hanger body and the lower annular end 166 of the slip rein ring 156. O-ring seals are provided for the annular chamber 164, as shown at 16S and lltl.

A plurality of drilled ducts extend longitudinally between the annular chambers 146 and Iori, one of which is shown in dotted lines 172, whereby fluid, preferably oil, under pressure may be transferred between the chambers lilo and lod, as hereinafter described.

A plurality of slip reins 17d extend upwardly from the upper slip rein ring sleeve 153 through longitudinal guide slots TL-'o' formed in the exterior surface of the upper n hanger body, adjacently exterior of the threaded connection l and into circumferentially spaced apart slip recesses 53a, where each slip rein is connected at its upper end to the lower end of a wedge shaped, serrated casing slip con, as hereinbefore described in connection with the structure shown in FIGURES 1 to 6 inclusive.

Referring now primarily to FIGURE 8, another modified form of the liner hanger assembly is shown which is similar to that of FIGURE 7, the principal difference being that instead of the slip rein ring being located wexterior of the hanger body, as shown at 156 in FIGURE 7, it is located internally, as shown at i561) in FIGURE 8 and in a manner similar to that shown in FIGURE 1.

In this latter construction, the upper end portion 138b of the slip actuating sleeve 34h is of reduced outside diameter relative to the lower portion thereof, forming at the change in diameter junction thereof an upwardly facing annular shoulder i375. The upper end portion lllb of the slip actuating sleeve 34h makes a longitudinally sliding lit within the lower portion of the bore i; of-a spacer sleeve 182 which is fastened inside the hanger body by a plurality of set screws, as shown at 184 and the. The lower end of the spacer sleeve 132 forms a downwardly facing, annular shoulder lldb opposite the upwardly facing annular shoulder lib. A lower annular chamber Mob of variable volume is thus formed between the upper and lower annular shoulders 137i? and ill-4b and enclosed by the surfaces of the inside diameter Mib of the hanger body and the outside diameter of the slip actuating sleeve llb, respectively. O-ring seals are provided for the annular chamber 146k, as shown at 190 and 1192.

The bore of the upper end portion of the hanger body, at a section shown at ISZb, is of reduced inside diameter relative to the balance of the bore of the lower portion of the hanger body. Longitudinally slidable within the bore section llSib is an annular slip rein ring i561. The slip rein ring 156i; has formed integrally therewith, and extending axially upwardly and downwardly therefrom, slip rein anchor ring sleeve members 158]: and ltlb, respectively, sleeve member ISSZ being longitudinally slidable within a bore portion 15312 of the hanger body, and the sleeve loilb being lonnitudinally slid-able within the upper portion of the bore 140i: ot the spacer sleeve 132. An annular chamber 1Mb of variable volume is thus formed between the upper end 154i) of the spacer sleeve 182 and the lower annular end loeb of the slip rein lning 156i; and enclosed between the bore of the sleeve 16% and the interior surface of the hanger body. O-ring seals are provided for the annular chamber 15612, as shown at 16S!) and 170b.

A plurality of drilled ducts extend longitudinally between the annular chambers Mob and 164]), one of which is shown in dotted lines 171i), whereby iiuid, preferably oil, under pressure may be transferred between the chambers, as hereinafter described.

A plurality of slip rein 174th extend upwardly from the slip rein ring 156]; through longitudinal guide slots 176b lformed through the exterior surface of the hanger body and into circumferentially spaced apart slip recesses 6811, where each slip rein is connected rat its upper end to the lower end of a wedge shaped, wickered casing slip deb, as hereinbefore described in connection with the structure shown in FIGURES 1 to 7 inclusive.

Operation of the apparatus of FIGURE 7 is as follows:

The setting tool is initially positioned in the liner hanger body 22a, shown in FIGURE 7, corresponding to the position thereof, shown in FIGURE l, and right hand rotation is then imparted through the operating string 12 to the setting tool assembly and thence through the bow springs 37 in engagement with the slots 35a to the slip actuating sleeve 34a with the result that the slip actuating sleeve 34a is screwed upwardly on the left hand threads 32a. Meanwhile, rotation `of the hanger body is prevented, .as described in connection with the operation of the apparatus of FIGURES l to 6, inclusive, by means of .a cage spring or the like device (not shown) attached to threads 18 of the hanger adapter sub 16 and which makes frictional engagement with the inside of the casing or bore hole wal-l.

The rotation of the slip actuating sleeve 34a causes shoulder 137 to move upwardly relative to the shoulder 144, thereby reducing the volume of chamber 146 and forcing fluid, preferably oil, therefrom under pressure through the ducts 172 into the chamber 164, thereby causing the chamber 164;- to be extended in length and thereby causing the slip rein ring 156 to be moved upwardly. The resultant upward movement of the slip rein actuating ring 156 is transmitted through sleeve 158 to the slip reins 1740 and thence to the slips 66a which are thereby caused to slide upwmdly and outwardly upon the slip wedging surfaces 7 tia into gripping engagement with the inside surface of the casing, as shown in FIGURE 2. The hanger assembly is then supportable within the casing upon the slips 66a and no longer is dependent for support upon the setting tool 2t) and operating string 12. The balance of the setting and releasing operations of the liner hanger and the packing is performed in the same manner as hereinbefore described in connection with FIGURES l to 6 inclusive.

Operation of the apparatus lof FIGURE 8 is as follows:

The setting tool is initially positioned in the liner` hanger body shown lin FIGURE 8 corresponding to the Iposition thereof shown in FIGURE l, and right hand rotation is then imparted through the operating string 12 to the setting tool assembly 26 and thence through the bow springs 37 to the slip actuating sleeve Seb with the result that the slip actuating sleeve 34E: is screwed upwardly, relative to the hanger body 22b, on the left hand threads 32h. Meanwhile, during rotation of the slip actuating sleeve, rotation of the hanger body 22!) is prevented, as described in connection with the operation of apparatus of FIG- URES l to 6 inclusive, by means of a cage spring or the like device (not shown) connected to threads 1S of the hanger adapter sub 16 and which makes irictional engagement with the inside surface of the surrounding casing or bore hole wall.

Rotation of the slip actuating sleeve 34h with the resultant upward movement thereof on threads 32b causes shoulder 13712 to move upwardly relative to the shoulder 144i: 'of the spacer sleeve, thereby reducing the volume of chamber Mob and forcing iluid, preferably oil, therefrom under pressure through the ducts 1721: into the chamber iadb, thereby causing the chamber 1641; to be extended in length and thereby causing the slip rein actuating ring 15513 to move upwardly. The resultant upward movement of the slip rein actu-ating ring 1565 is transmitted through the slip rein-s 174b to the slips 66h, which are thereby caused to slide upwardly and outwardly upon the slip wedging surfaces 7617 into gripping engagement with the inside surface of the casing to positions corresponding to thatshown in FIGURE 2. At this stage of the hanger setting operation, the assembly is supportable within the casing upon the slips and thus is no longer dependent for support upon the setting tool and operating string 12. The subsequent operations of setting the liner hanger and packing and releasing of the setting too-l may be performed in the .same manner and in the same sequence as herebefore described in connection with the apparatus of FIGURES 1 to 6 inclusive.

The linerhanger of this invention including the packoff features thereof, is not only advantageous in connection with the setting in a well of more or less conventional perforated pipe, but is also adapted to greatly improve and facilitate a number of other well completion operations such as, for example, cementing and ground packing. The versatile characteristics of this liner hanger, pack-off means, and setting tool assembly permit a variety of different operations within the well without costly and untimely pulling and screwing of diftervent down hole tool set-ups.

It is to be understood that the foregoing is illustrative only, and that the invention is not limited thereby, but includes all modiiications thereof in the scope of definition ot the appended claims.

I claim:

1. A liner hanger and setting tool assembly comprising: a hanger body; an annular sleeve member threadedly coupled concentrically within said body and thereby movable longitudinally therein by rotation relative to said body; slip means and slip expander'means carried by said body, said slip means being movable on said expander means between retracted and extended positions relative thereto; means coupling said annular sleeve member to said slip means, whereby longitudinal movement of said sleeve member attendant upon rotation of said sleeve member relative to said body moves said slip means on said expander means between said retracted and extended positions; and setting tool means connected to said body and rotatable relative thereto, said setting tool means including means detachably engaging said annular sleeve member for transmitting rotation of said setting tool to said sleeve member relative to said body, thereby to move said slips as aforesaid.

2. A liner hanger and setting tool assembly comprising: a hanger body; an annular sleeve member threadedly, detachably coupled concentrically within said body; setting tool means initially extending into said body and through said sleeve member, said tool means and sleeve member including means permitting longitudinally slidable movement between limits relative to one another and rotatable relative to one another when at a tirst predetermined' longitudinal position relative to one another between said limits, whereby said setting tool means is longitudinally, slidably connected to said body and rotatable relative thereto when at said first predetermined longitudinal position; means coupling said setting tool means and said sleeve member together non-rotatable relative to one another when said sleeve member and tool means are moved to a second predetermined longitudinal position relative to one another, whereby said setting tool means may be rotated relative to said sleeve member and said body when in said first longitudinal position relative to one another and whereby said sleeve ll member may be rotated by said tool means relative to said body to detach said sleeve member from said body and thereby disconnect said tool means from said body when said tool means and body are in said second predetermined position relative to 'one another.

3. A liner hanger and setting tool assembly comprising: a hanger body; an annular sleeve member threadedly, detachably coupled concentrically within said body; setting tool means initially extending into said body and through said sleeve member, said tool means and sleeve member including means permitting longitudinally slidable movement between limits relative to one another and rotatable relative to one another, when at either of said limits, whereby said tool means is longitudinally, slidably connected to said body and rotatable relative thereto at either of said limits; means coupling said tool means and said sleeve member together non-rotatable relative to one another, when said sleeve member and tool means are moved to a predetermined longitudinal position relative to one another immediate said limits, whereby said tool means may be rotated relative to said sleeve member and said body when said tool means and sleeve member are positioned at either of said limits relative to one `another and whereby said sleeve member may be rotated by said tool means relative to said body to detach said sleeve member from said body and thereby disconnect said tool means from said body when said tool means and body are in said predetermined longitudinal position relative to one another intermediate said limits.

4. A liner hanger and setting tool assembly comprising: a hanger body; a first Aannular variable fluid containing chamber in said body; an annular sleeve member threadedly coupled concentrically within said body and thereby movable longitudinally by rotation thereof relative to said body; means coupling said sleeve member with said rst chamber, whereby longitudinal movement thereof resulting from said rotation changes the volume of said chamber; a second annular variable volume duid containing chamber within said body; duct means interconnecting said lirst chamber and said second chamber; slip means carried by said body and movable between retracted and extended positions relative thereto; and means coupling said second chamber to said slip means, whereby change in volume of said second chamber attendant upon change of volume ot said rst chamber moves said slip means between said retracted and extended positions.

5.` A liner hanger and setting tool assembly comprising: a hanger body; a rst annular variable volume chamber in said body; an annular sleeve member threadedly coupled concentrically within said body and thereby movable longitudinally by rotation thereof relative to said body; means coupling said sleeve member with said first chamber, whereby longitudinal movement thereof resulting from said rotation changes the volume of said chamber; a second annular variable volume chamber within said body; duct means interconnecting said rst chamber and said second chamber; slip means carried by said body and movable between retracted and extended positions relative thereto; and means coupling said second chamber to said slip means, whereby change in volume of said second chamber attendant upon change of volume of said first chamber moves said slip means between said retracted and extended positions.

6. A liner hanger and setting tool assembly comprising: a hanger body; a lirst annular sleeve member threadedly, detachably coupled concentrically within said body; setting tool means initially extending into said body and through said rirst sleeve member, said tool means and first sleeve member being longitudinally slidable between limits relative to one another and rotatable relative to one another when at either of said limits, whereby said setting tool is longitudinally, slidably connected to said body; a second annular sleeve member threadedly coupled concentrically within said body; casing gripping means carried by said body and movable between retracted and extended positions relative thereto; means interconnecting said second sleeve member and said casing gripping means, whereby longitudinal movement of said second sleeve member attendant upon rotation thereof relative to said body moves said casing gripping means between retracted and extended positions; means coupling said tool means and said second sleeve member together non-rotatable relative to one another when said tool means and said tirst sleeve member are moved to one of said limits relative to one another, whereby rotation of said tool means relative to said body rotates said second sleeve member relative to said body, and said casing gripping means is `thereby moved between said retracted and extended positions; means coupling said tool means and said first sleeve member together non-rotatable relative to one another when said tool means and said first sleeve member are moved to a predetermined longitudinal position relative to one another intermediate said limits, whereby rotation of said tool lmeans relative to said body rotates said first sleeve member relative to said body to detach said rst sleeve member from said body and thereby disconnect said tool means from said body.

7. A liner hanger and setting tool assembly comprising: a hanger body; a first annular sleeve member threadedly, detachably coupled concentrically within said body; setting tool means initially extending into said body and through said rst sleeve member, said tool means being slidable longitudinally through said first sleeve member between limits and rotatable relative to said first sleeve member when positioned adjacent either of said limits; a second annular sleeve member threadedly coupled concentrically within said body and thereby movable longitudinally' therein by .rotation relative to said body; casing gripping means carried by said body and movable between retracted and extended positions relative thereto; means interconnecting said second sleeve member and said gripping means, whereby such longitudinal movement of said second sleeve member attendant upon its rotation relative to said hanger body moves said gripping means be` tween retracted and extended positions; means actuatable, by positioning said setting tool adjacent one of said limits relative to said first sleeve member, to couple said tool means and said second sleeve member together nonrotatable relative to one another, whereby rotation of said tool means relative to said body rotates said second sleeve member relative to said body, and said gripping means is thereby in turn moved between said retracted and extended positions; packing means carried by said body and deformable lbetween retracted and extended positions; rotatable compression means to deform said packing means between such retracted and extended positions; means, actuatable by positioning said setting tool adjacent the other of said limits relative to said first sleeve member, to couple said tool -means to said compression means, whereby rotation of said tool means relative to said body rotates said compression means relative toA said-body, and said packing means is thereby in turn deformed between said retracted and extended positions; means, actuatable by positioning said setting tool at a longitudinal position relative to said first sleeve member intermediate said limits, to couple said tool means and said rst sleeve means together non-rotatable relative to one another, whereby rotation of said tool .means relative to said body rotates said first sleeve member relative to said body, to disconnect said first sleeve member from said body and thereby detach said tool means from said body. K

8. A liner hanger and setting tool assembly comprising: a hanger body; a lirst annular sleeve member threadedly, detachably coupled concentrically with said body; setting tool means initially extending through said first sleeve member, said tool means being slidable longitudinally through said first sleeve member etween upper and lower limits and rotatable relative to said rst sleeve member when positioned adjacent either of said limits; a second annular sleeve member threadedly coupled concentrically with said body and thereby movable longitudinally relative to said body by rotation relative to said body; casing gripping means carried by said body and movable between retracted and extended positions relative thereto; means interconnecting said second sleeve member and said gripping means, whereby such longitudinal movement of said second sleeve member attendant upon its rotation relative to said hanger body moves said gripping means between retracted and extended opsitions; means actuatable, by positioning said setting tool adjacent the upper one of said limits relative to said first sleeve member, to couple said tool means and said second sleeve member together non-rotatable relative to one another, whereby rotation of said tool means relative to said body rotates said second sleeve member relative to said body, and said gripping means is thereby in turn moved between said retracted and extended positions; packing means carried by said body and deformable between retracted and extended positions; rotatable compression means to deform said packing means between said retracted and extended positions; means, actuatable by positioning said setting tool adjacent the lower one of said limits relative to said first sleeve member, to couple said tool means to said compression means, whereby rotation of said tool means relative to said body rotates said compression means relative to said body and said packing means is thereby in turn deformed between said retracted and extended positions; means, actuatable by positioning said setting tool at a longitudinal position relative to said first sleeve member intermediate said upy er and lower limits, to couple said tool means and said first sleeve member together non-rotatable relative to one another, whereby rotation of said tool means relative to said body rotates said `first sleeve member relative to said body, to disconnect said rst sleeve member from said lbody and thereby detach said tool means from said body.

9. A liner hanger and setting tool assembly comprising:

a hanger body;

gripping means carried by said hanger body and extendable therefrom into engagement with a surrounding casing;

packinfy means carried by said hanger body and expandable therefrom into engagement with a surrounding casing;

a setting tool initially extending axially into said hanger body with freedom for limited axial sliding movement relative to said hangerbody;

means for initiaily supporting said hanger body upon said setting tool in a first longitudinal position relative to one another and with freedom of rotation of said hanger body and said setting tool relative to one another;

means interengaging said setting tool and said hanger body while said setting tool and said hanger body are in said first longitudinal position relative to one another and actuatable by rotation of said setting tool in a predetermined direction relative to said hanger body for extending said gripping means into v engagement with a surrounding casing;

means interengageable with said setting tool and said hanger body by positioning said setting tool and hanger bod;I in a second longitudinal position relative to one another and actuatable by rotating said setting tool in the said same predetermined direction relative to said hanger body, for expanding said packing means into engagement with a surrounding casing;

and means interengageable with said setting tool and said hanger body by positioning said setting tool and said hanger body in a third longitudinal position relative to one another and actuatable by rotating said setting tool in the same predetermined direction rela- 14 tive to said hanger body, Ifor releasing and permitting withdrawal of said setting tool from said hanger body. l0. A liner hanger and setting tool assembly comprising:

a hanger body;

gripping means carried by said hanger body and extendable therefrom into gripping engagement with a surrounding casing;

a setting tool initially extending axially into said hanger -body with freedom for limited axial sliding movement relative thereto;

means -for initially supporting said hanger body upon said setting tool in a first longitudinal position relative to one another and with freedom of rotation of said hanger body and said setting tool relative to one another;

means interengaging said setting tool and said hanger body while said setting tool and said hanger body are in said first position relative to one another and actuatable by rotation of said setting tool in a predetermined direction relative to said hanger body for extending said gripping means into engagement with a surrounding casing;

means interengageable with said setting tool and hanger body by positioning said setting-tool and hanger body in a second longitudinal position relative t-o one an- -other .and actuatable by rotating said setting tool in said predetermined direction relative toy said hanger body-while in said second longitudinal position, lfor releasing and permitting withdrawal of said setting tool from said hanger body.

11. A liner hanger and setting tool assembly comprising:

a hangerbody;

gripping `means carried by said hanger body and extendable into gripping engagement with a surrounding casing;

a setting tool initially extending axially into said hanger body with freedom for limited axial sliding movement relative thereto;

means for initially supporting said hanger body upon said setting tool in a first ylongitudinal position relative to Kone anotherand with freedom of rotation of said hanger body and setting tool relative to one another;

means interengaging said setting tool and said hanger body when said setting tool and said hanger body are in said first position relative toI one another and lactuatable by rotation -of said setting tool in a predetermined direction relative to said hanger body for extending said gripping means into supporting engagement with a surrounding casing, whereby said setting tool can be lowered relative to said hanger body while said hanger body is supported by said casing, thereby positioning said setting tool and hanger body in a second longitudinal position relative to one another; Y

means interengageable with said setting tool and said hanger body by positioning said setting tool and said hanger body in said second longitudinal position relative to each other, while said hanger body is supported 'by said casing and actuatable by rotation of said setting tool in said same predetermined direcy tion relative to said hanger body for releasing and permitting withdrawal of said setting tool from said hanger body.

12. A linear hanger and setting tool assembly comprising:

a hanger body; l

gripping means carried by said hanger body and extendable into gripping engagement with a surrounding casing;

packing means carried -by said hanger body and extendable therefrom into sealing engagement with a surrounding casing;

a setting tool initially extending axially into said hanger body with -freedom for limited axial sliding movement relative thereto;

means for initially supporting said hanger body upon said setting tool with said setting tool in a rst longitudinal position relative to said hanger body and with freedom of rotation of said hanger body and setting tool lrelative to one another;

means interengaging said setting tool and said hanger body while said seting tool and hanger body are in said first position relative to one another and actuatable by rotation of said setting tool in a predetermined direction relative to said hanger body for extending said gripping means into supporting engagement with a surrounding casing whereby said setting tool can be lowered to a second position relative to Isaid hanger body while said hanger body is thus supported in such casing;

and means interengaging said setting tool and said hanger body while said setting tool and said hanger body are in said second longitudinal position relative to one another and actuatable by rotation of said setting tool in said same predetermined direction relative to `said hanger body for expanding said packing means into sealing engagement with the surrounding casing.

13. A liner hanger and setting tool assembly comprising:

a hanger body;

packing means carried by said hanger body and extendable therefrom into sealing engagement with a surrounding casing;

means for initially supporting said hanger body upon said setting tool in a iirst longitudinal position relative to one another and with freedom of rotation of said hanger body and setting tool relative to each other;

means inter-engaging said setting tool and said hanger body while said setting tool and hanger body are in said iirst longitudinal posi-tion relative to one another and actuatable by rotation of said setting tool and in a predetermined direction relative to said hanger body for extending said gripping means into supporting engagement with a surrounding casing Whereby said setting tool can be lowered to a second and a third position relative to said hanger body while said hanger body is ,thus supported in the casing;

means interengageable with said setting tool and said hanger body while said setting tool and said hanger tool 4are in said second longitudinal position rela- Itive to one another and actuatable by rotation ofsaid setting tool in said same predetermined direction relative to said hanger body while said hanger body is supported in said casing for expanding said packing means into sealing engagement with the surrounding casing;

and means interengageable with said setting tool and hanger body while said setting tool and said hanger body are in a third longitudinal position relative to one another and 4actuatable by rotation of said setting tool in said same predetermined direction relative to said hanger body while said setting tool and hanger body are supported in the casing for releasing and permitting withdrawal of said setting tool from said hanger body.

14. A liner hanger and setting .tool assembly comprising:

a setting tool initially extending axially into said hangerV body with freedom for limited axial sliding movement relative thereto;

means for initially supporting said hanger body upon said setting tool in a irst longitudinal position relative to one another and with freedom of rotation of said hanger body and setting tool relative to one another;

means interengaging said setting Itool and hanger body while said hanger body and setting tool are in said first longitudinal position relative to one another and actuatable by rotation of said setting tool in a right-hand direction relative :to said hanger body for extending said gripping means into supporting engagement with a surrounding casing whereby said setting tool can be lowered to a second and a third position relative to said hanger body while said hanger body is thus supported in the casing;

means interengageable with said setting tool and said hanger body While said setting tool and said hanger body are in said second longitudinal position relative to one another and while said hanger body is supported in said casing and actuatable by rotation of said setting tool in a right-hand direction relative to said hanger body for expanding said packing means into sealing engagement with the surrounding casing;

and means interengageable with said setting tool and said hanger body while said setting tool and hanger body are in a third longitudinal position relative to one another and while said hanger body is supported in the casing actuatable by rotation of said setting tool in a ri ght-hand direction relative to said hanger body for releasing Aand permitting withdrawal of said setting tool from said hanger body.

15. A liner hanger and setting tool assembly cornprising:

a hanger body;

an annular sleeve member threadedly coupiedV concentrically within said hanger body and thereby movable longitudinally therein by rotation thereof relative to said body;

slip means carried by said hanger body and movable between retracted and extended positions relative thereto;

means coupling said annular sleeve member to said slip means, whereby such longitudinal movement of said sleeve member attendant upon such rotation thereof relative to said hanger body moves said iirst slip means between said positions;

and setting tool means including means interconnecting said setting t'ool means and said hanger body sucn that said setting tool means is rotatable relative to said hanger body and movable longitudinally relative thereto between limits, said setting tool means including means engaging said annular sleeve member for transmitting rotation of said setting tool to said sleeve member relative to said hanger body when said setting tool means is in a iirst longitudinal position between said limits, and rotationally tree of engagement with said annular sleeve member when said setting tool means is in a second longitudinal position between said limits.

16. A liner hanger and setting tool assembly comprising:

a hanger body;

an annular sleeve member threadedly coupled concentrically Within said body and thereby movable longitudinally therein by rotation relative to said body;

i7 is slip means carried by said body and movable between said annular sleeve member when in a second longiretracted and extended positions relative to said body; tudinal position between said limits;

means coupling said annular sleeve member to said and means actuatable by rotation of said setting tool slip means, whereby longitudinal movement of said means relativeto said body while said setting tool sleeve member attendant upon its rotation relative 5 means is in said second position for detaching said to said body moves said first mentioned means setting tool means from said body. between said positions;

setting tool means connected to said body such as to References Cited 111 the 51e 0f this Patent be rotatable relative thereto and movable longitu- UNITED STATES PATENTS dinally relative thereto between limits, said setting 10 tool means including means engaging said annular /Iirra glo? g' sleeve member for transmitting rotation of said 2693859 1/)ri IIO'V 9 1954 setting tool to said sleeve member relative to said 3018830 Spger Ian '30 1962 body when in a rst longitudinal position between said limits, and rotationally free of engagement with 15 3,025,913 Sizer ..r Mar. 20, 1962

Claims

1. A LINER HANGER AND SETTING TOOL ASSEMBLY COMPRISING: A HANGER BODY; AN ANNULAR SLEEVE MEMBER THREADEDLY COUPLED CONCENTRICALLY WITHIN SAID BODY AND THEREBY MOVABLE LONGITUDINALLY THEREIN BY ROTATION RELATIVE TO SAID BODY; SLIP MEANS AND SLIP EXPANDER MEANS CARRIED BY SAID BODY, SAID SLIP MEANS BEING MOVABLE ON SAID EXPANDER MEANS BETWEEN RETRACTED AND EXTENDED POSITIONS RELATIVE THERETO; MEANS COUPLING SAID ANNULAR SLEEVE MEMBER TO SAID SLIP MEANS, WHEREBY LONGITUDINAL MOVEMENT OF SAID SLEEVE MEMBER ATTENDANT UPON ROTATION OF SAID SLEEVE MEMBER RELATIVE TO SAID BODY MOVES SAID SLIP MEANS ON SAID EXPANDER MEANS BETWEEN SAID RETRACTED AND EXTENDED POSITIONS; AND SETTING TOOL MEANS CONNECTED TO SAID BODY AND ROTATABLE RELATIVE THERETO, SAID SETTING TOOL MEANS INCLUDING MEANS DETACHABLY ENGAGING SAID ANNULAR SLEEVE MEMBER FOR TRANSMITTING ROTATION OF SAID SETTING TOOL TO SAID SLEEVE MEMBER RELATIVE TO SAID BODY, THEREBY TO MOVE SAID SLIPS AS AFORESAID.