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Publication numberUS2942671 A
Publication typeGrant
Publication dateJun 28, 1960
Filing dateJun 30, 1958
Priority dateJun 30, 1958
Publication numberUS 2942671 A, US 2942671A, US-A-2942671, US2942671 A, US2942671A
InventorsJosephine Schramm
Original AssigneeOtis Eng Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Means for installing subsurface tools
US 2942671 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

United States Patent Oce 2,942,671 Patented June 28, 19640 lVIEANS FOR INSTALLING SUBSURFACE TOOLS Harry B. Schramm, deceased, late of Dallas, Tex., by Josephine Schramm, executrix, Dallas, Tex., assgnor to tis Engineering Corporation, a corporation of Texas Filed June 30, 1958, Ser. No. 745,687

11 Claims. (Cl. 166-218) This invention relates to means for installing subsurface tools in an'oil well tubing string and, more particularly, to such means which are pre-set at the surface of the well, which bias the longitudinal axis of the tool to be installed from the longitudinal axis of the tubing string when the tools and means are inserted in the tubing string and which, without the use of other equipment, direct the tool into an oiset pocket in the tubing string as the tool approaches the entrance to the oiset pocket during its downward travel in the tubing string.

A principal object of this invention is to provide means for installing tools in an offset pocket in a tubing string, which means are pre-set at the surface of the well so that iti will Vdirect a tool into the desired offset pocket without the necessity for any other type of equipment other than conventional wire line equipment.

` Another object is to provide such means which cooperate with the peculiarly internally configured tubing string to so'install the tool in the desired offset pocket.

A further object is to provide such means which, when pre-set, will select the desired offset pocket from a number of such oiset pockets located at vertically spaced apart positions in the tubing string in which to install the tool.

Other objects and advantages will become apparent in the course of the following detailed description.

In the drawings, forming a part of this application, and in which like parts are designated by like reference numerals throughout the same,

Fig. 1 is an elevational sectional view illustrating the installing of a valve in a preselected offset mandrel pocket.'

Fig. 2 is an enlarged sectional view ofthe valve installing means illustrated in Fig. 1. Y

Fig. 3 is a perspective view of the guide shoe employed in the mandrel of Fig. l.

Fig. 4 is a sectional view taken on line 4-I4 of Fig. 1, with the installing means removed from the mandrel.

Figs. 5, 6 and 7 are views similar to Fig. 4 illustrating the manner by which preselected mandrels may have valves installed therein.

While the means of this invention can be employed to install various types oftools in and laterally off-center of an oil well tubing string, it is described herein in use with a gas lift valve and an offset mandrel having an oiset pocket in which the valve is to be installed, as shown in Fig. l.

Referring now to the drawings, the offset mandrel 10 may be one of the conventional types adapted to be made up in a tubing string 11, and has a main bore 12 in line with the main bore of the tubing string and has a side pocket 13 oiset from the main bore 12. The oifset mandrel is provided with a guide shoe 14 inserted in the upper portion of the mandrel and integrally connected therewith. The guide shoe 14 is, in eiiect, a fixed cylindrical sleeve within the upper end of the main bore 12 coaxially therewith, and has downwardly sloped upper cam surfaces 15 and 16 commencing at the apex point 17 and extending downwardly to the slot 18 which has a depth equal to the thickness of the sleeve and which extends downwardly to the lower end of the shoe. The location of the slot 18 with respect to the offset pocket 13 is an important aspect of this invention, as is more fully explained hereinafter.

The installing tool 20 comprises a mandrel 21 having a longitudinal bore 22 laterally off-center of the central axis of the mandrel and opposite the pin 23. Spring 24 within the bore forces the plunger 25 downwardly against the upper end 26 of the eccentric connector 27. Since the connector neck 28 is eccentrically connected to the mandrel by the pin 23, the downward force exerted on the connector neck 28 by the plunger 25 tends to cause the eccentric connector to pivot about the pin' 23; OiV

course, the eccentric connector will not pivot about the pin if it is restrained from such movement by the Walls of the tubing or the guide shoe.

The mandrel 20 also contains aV radial bore 30 perpendicular to its longitudinal axis. Locator key 31'is maintained in this bore by pin 32 which passes through the mandrel and through the elongated slot 33 in the locator key and is constantly urged outwardly by spring 34. The lengthwise axis of the locator key liange 35 is parallel to the slot 18 of the guide shoe, and the width oftheilange is less than the width of the slot 18.. Hence, it will be seen that as the installing tool 20| moves downwardly towards the olset mandrel. 10, the locator key will ride along the'internal wall of the tubing string. Next, the locator keyv will be forcedA toward lthe slot 18 when `it cornes in contact with either guide -shoel surface 15 or 16 so that the external ange of .the locator key will slide downwardlyinto and through the slot 18 as the mandrel passes through the guide shoe. As the mandrel 20 is rotated by the coaction of the locator key 31 and the guide shoe surfaces V15 or 16, the eccentric connector 27 is oriented in such manner as to point toward the offset pocket 13.

A `second mandrel 20 may be provided in whichl the locator key bore 30 is rotated 90 about the central axis of the mandrel 21. In this case, the locator key 31whenI disposed within the slot 18 would cause the eccentric connector 27 to be directed at an angle 90 from that shown inV Fig. I. However, should'the guide shoe 14 be also rotated in mandrel 10,. as illustrated in Fig. 5; in the direction which the new bore 30 is rotated, the eccentric connector 27 would be directed as shown in Fig. l when the locator key is disposed within the slot 18. Similar results can be obtained by providing 'additionalrn'andreis in which the locator keyv bore 30 is disposed at additional angles such as l and 270 '.tothat shown in Fig. l, suchv modifications being illustrated in Figs. 6 and 7. 4`It is important to observe that whenthe bore a0 is rotatedv a specified number of degrees in a 'given direction, the eccentric connector will be. directed `towards the offset pocket, as'shown in Fig. l, onlywhen the guide shoe 14 is rotated an equal number of degrees in the same direction.

lIn operation, the means of this invention may be em ployed to install tools in a number of olset mandrels 10Y made up in an oil well tubing string. By way of illustration, it will 'be assumed that the tubing string 11 contains ve offset mandrels, as shown in Fig. l, connected in the tubing string 11 at predetermined elevations, with the first and fifth (uppermost and lowermost) each having a n guide shoe 14 disposed therein, as shown in Fig. l, and

withY the second, third and fourth each having a guide shoe rotated therein by 90, 180 and 270, respectively, as shown in Figs. 5, 6 and 7. fln this situation, four installing tool mandrels 20 will be required to install a tool in each of the oiset pockets. The iirst mandrel will be configured, as shown in Fig. 1, and will be employed to install a tool in the firstV and fifth offset pockets. The Vse :ond,.third and fourth mandrels (not illustrated) will each have a locator key bore30 rotated 90, 180 andV 270, respectively, in theV same direction` in which the guide shoes 14 of the second,third and fourth oifset mandrels 10 were rotated.

Y v Afterlit has been determined in whichoifset pocket a tool, Ysuch as a conventional'gas lift valve 36,'is to be installed, thecOrresPondingVV mandrel 20 is selected and made Yuprin the conventional wire line byrthreadedV engagement at. 37. pAn eccentric connector 27 is attached to the running tool 38, and the flanged end 39 of the Vi valve 36 is inserted in the running tool and connected thereto, asby tangential shear pins 41. After the'ecfV centric connector 27 is. connected to the mandrel 20 by pin 23, the entire assembly Yis lowered into the tubing string. 1f the valve 36 is to be installed in the tirstoset Vmandrel, the valve Vand eccentric connector will be directed toward therpocket 13 of the offset mandrel, as

' Yshown in VFig'. Yl, when the locator key flange 35 passes through ,theL slot 18, as previously described. However, ifY itis desired to insert a valve in the third oifset mandrel,

Y the proper installing mandrel 20-will be used. When this Y mandrel passes through the irst offsetr mandrel, the eccentric connector andthe valve 36 will not be directed at theV pocket 13 Vbut in the opposite direction, and the tool will continue downwardly in the tubing string until 1 Vthetll'ird offset mandrel is reached.V VAtV that tin1e,rtheI locator key will be directedain the directionV opposite to that shownirin Fig; 1, and will-pass through'the slot 18Y ofthe guide shoeshown in Fig. l6, so that the eccentric Y' connectorwill be directed toward the offset pocket, and Y the valvewill enter the pocket asY the mandrel 20'passes belowtheV guide shoe of that offset: mandrel. fIn likei Ymannelifatool may be'Y installed in the'second and fourth offset mandrels merely by selectingrthe-proper Vmandrel,V 20 in accordance with the particular mandrel 10 previous- Y ly made up in the tubing string. lIt is Vto be noted, .how- 1 ever, that a valve cannot be inserted in the fth Voffset mandrel until one has been installed in the first olfset the corresponding mandrel 20isjattached to the Vwire line at one end and to the eccentric connector 27 on the Y other end, to which is connected a conventional iishing Ytool (not shown) which can engage the ange 3910i the valve 36. 'I'he fishing tool must be of suicient length to engage the iiange 39 while the locator key 31 is still disposed in the slot 18. When the shing tool contacts the .valve 36, the wireline is jarred downwardly-in aiconven#V tional manner until the fishing tool grips the ange 39.. Now, the entire assembly of valve, fishing tool,feccentric connector, -mandrel 20 and' wire 'lineris retracted in the conventional manner.

Y Y With this invention, it 's Vto be observed that the force necessary to direct the valve towardthe desired odset pocket is provided at the surface ofthe earth, that the force is longitudinally directed when in the well, and 4that no additional equipment of any type is required in the offset mandrel to s'o deect the valve to be) installed. Y

It is'to be understood that the form of the invention, herewithY shown and described, is to be taken as apref ferred embodiment of the same, and that various changes YinY theV shape, size and arrangement Yof parts may be ref sorted to without departing'from'the spirit of the invention or the scope of the attached claims.

Having, thusrdescribed the invention, what is claimed and desired toY secure by Letters Patent is:

1. Apparatus of the characterY described comprising an r offset mandrel adapted to be connected in a tubing string,

' said votisetrmrandrel Vhaving arverticalmain boreextending therethrough, meansfforming an open ftopped, welltool receiving .pocket within said,v offsetVV mandrelgsaid pocket havingits; longitudinaLaXis offsetjfrom said .mainV bore,

a kguide shoe comprising a'cylinlricalV sleeve mounted in 'the upperendV of said :bore fcOaXally therewith, said sleeve ,havingk a longitudinal-1slot extending from vthe.' upper surface'fto -the. lower end thereof,thefvertical'plane` determinedby said slot and themain boreV axis andthe vertical plane kdetermined by said offset pocket-axisgand Y mandrel; a valve is installed in the first olset manf drel,1 and Va second valve is run into the well usingY the f same` r mandrel 20, the tool will be deflected from the offset pocketandpwill'rcontinue downwardly to the fth'offset t .1f desiredthe disadvantage described alovefbf'fhe lack ofdifferentiationbetween therst and fth offset tance betweenthe guideV shoe 14 and the upperend of lthe Y mandrel can beovercome by the'invention by increasing Y Y jY Ythe length-ofthe fth otset mandrel to increase' the dise p ffsetf'pocke't; 13thereof. Then, when it.,is desiredto tricV connector: 27 will be constrained. fromfrotationaboutV Y installa valvezin thisfoifsetrmandrelpalonger. running'. A tool -38 isjrused'fsoVA that the' valve 36 will enterthepocltetrr Y tivhenrtheV installingfmandrel'Zllris 'passingzthrough the guide shoe sloti18. i The Yvalye936 will not be inserted Y inthe VVoffset pocketfof the frst'mandrelsince the .eccenf pinV 23fby the tubing 'stringrwhen-the valve 36 isv atthe 1 levelofthe top of Ythe offset pocket.` 'Iphe same principle will lapply if it is desired to differentiate between the second andra sixtlr offset mandrel 10 if each has the `guide Y shoejslotr ,18,o1iented in the same manner With respectv to the offset pockets thereof.

said main bore axis being .angularly relatedfrelativeto oneanotlier by a- .predetermined angle, aV running 1tool comprising an Yelongated mandrel adapted to pass longitudinally through said sleeve,.a locatorrkeyfextending radially outwardly from said running tool mandrel,said

key being Vadapted' to fit withinsaid sleeveislohan elongatedconnector membenmeans. connectingthe` upper end of said, connector memberto the lower end of said 'running toolfmandrel for pivotal movement of said con- Ynectorrmember,relative tosaid runningtool mandrelV in asingle predetermined Aplane which-includesltheA axiszof said running tool mandrel, means on the lower end of saidconnector member for releasably engaging afwell tool,Y said running Vtool mandrelandgconnector member having v'their axeslinalignment at 'one :relative position therebetween,` land spring meansiactng between saidY running tool mandrelY andY connector -member'forrnormally biasing said connector member Vto pivot about said running Y toolY mandrel in said predetermined'` planeptogaposition *wherein said .running tool mandrelfand Vconnector memberlaxes areout of alignment, saidY predetermined plane and the plane dened jbyV therrunning tool mandrel axis andthe locator key beirigangularlyvv related relative ,t0l

Vone another by said -predeterminedrangle, of saidV oifset A mandrel.V t

Y Y. After the valve has been installed in the offset pocket,

the wire line isV jarred'upwardly, causingthentangential shear pins 41-,to fail.v Then, theV entire assembly of WireV line, mandrel 20, eccentric connector Y27 and running tool v 2. Apparatus of the character described comprising an offset mandrel adaptedlto berrconnected in atubingstring,

' saidoiset mandrel having 'a vertical main Vbore extending therethrough, means forming an open topped, well Ytool receivingpocket within said'oifset mandrel, said pocket having its longitudinal axis offset from said main bore,',a guideshoe comprising acylindrical sleeve mountf ed in the upper end of said'bore coaxially therewith, said Y sleeve having a longitudinal'slotr-extending from thenpper surface gto the lower end thereof, said sleevehaving its upperY surface sloping upwardly from each side/of said slot, the vertical plane determinedby said slot and win main bore axis and the vertical plane determined by said ollset pocket axis and said main bore axis being angularly related relative to one another by a predetermined angle, a running tool comprising an elongated mandrel adapted to pass longitudinally through said sleeve and having a radial bore therein, a locator key disposed in said radial bore, spring means for urging said key radially outwardly from lsaid running tool mandrel, said key having an outer vertical ange adapted to t within said sleeve slot, said flange having a downwardly and outwardly sloping upper surface, an elongated connector member, means connecting the upper end of said connector member to the lower end of said running tool mandrel for pivotal movement of said connector member relative to said running tool mandrel in a single predetermined plane which includes the axis of said running tool mandrel, means on the lower end of said connector member for releasably engaging a well tool, lsaid running tool mandrel and connector member having their axes in alignment at one relative position therebetween, and spring means acting between said running tool mandrel and connector member for normally biasing said connector member to pivot about said running tool mandrel in said predetermined plane to a position wherein said running tool mandrel and connector member axes are out of alignment, said predetermined plane and the plane dened by the running tool mandrel axis and the radial bore therein being angularly related relative to one another by said predetermined angle of said offset mandrel.

3. A. well installation comprising a tubing string, a plurality of tubing mandrels connected at predetermined elevations in said tubing string, each tubing mandrel having a' vertical main bore extending therethrough, means forming an open topped, well tool receiving pocket -withing said tubing mandrel, said pocket having its longitudinal axis offset from said main bore, and a guide shoe comprising a cylindrical sleeve mounted in the upper end of said bore coaxially therewith, said sleeve having a longitudinal slot extending therethrough from the upper surface to the lower end thereof, the vertical plane determined by said slot and the main bore axis and the Vertical plane determined by said offset pocket axis and said main bore axis being angularly related relative to one another by a predetermined angle, and wherein said predetermined angle is different for each of said tubing mandrels.

4'. A well installation comprising a tubing string, a plurality of tubing mandrels connected at predetermined elevations in said tubing string, each tubing mandrel having a vertical main bore therethrough, means forming an open topped, well tool receiving pocket within said tubing mandrel, said pocket having its longitudinal axis otiset from said main bore, and a guide shoe comprising a cylindrical sleeve mounted in the upper end of said bore coaxially therewith, said sleeve having a longitudinal slot extending therethrough froml the upper surface to the lower end thereof, said sleeve having its upper surface sloping upwardly from each side of said slot, the vertical plane determined by said slot and the main bore axis and the vertical plane determined by said olset pocket axis and said main bore axis being angularly related relative to one another by a predetermined angle, and wherein said predetermined angle is dierent for each of said tubing mandrels.

5. A well installation comprising a tubing string, a plurality of tubing mandrels connected at predetermined elevations in said tubing string, each tubing mandrel having a vertical main bore extending therethrough, means forming an open topped, well tool receiving pocket within said tubing, mandrel, said pocket having its longitudinal axis. oiset from said main bore, a guide shoe comprising a cylindrical sleeve mounted in the upper end of said bore coaxially therewith, said sleeve having a longitudinal slot extending from the upper surface to the lower end thereof, the vertical plane determined by said slot and the main bore axis and the vertical plane determined by said related relative to one another by a predetermined angle, and wherein `said predetermined angle is different for each of said tubing mandrels, a running tool adapted to insert and remove a well tool in and from the oiset pocket of a selected one of said tubing mandrels comprising an elongated mandrel adapted to pass longitudinally through the sleeve of said tubing mandrels, a locator key extending radially outwardly from said running tool mandrel and adapted to lit within said sleeve slot, an elongated connector member, means connecting the upper end of said connector member to the lower end of said running tool mandrel for pivotal movement of said connector member relative to said running tool mandrel in a single predetermined plane Iwhich includes the axis of said running tool mandrel, means on the lower end of said connector member for releasably engaging a well tool, said running tool mandrel and connector member having their axes in alignment at one relative position therebetween, and spring means acting between said running tool mandrel and connector member for normally biasing said connector member to pivot about said running tool mandrel in said predetermined plane to a position wherein said running tool mandrel and connector member axes are out of alignment, said predetermined plane and the plane deiined by the running tool mandrel axis and' said locator key being angularly related relative to one another at an angle corresponding to the predetermined angle of the selected one of said tubing mandrels.

6. A. well installation comprising a tubing string', a plurality of tubing mandrels connected at predetermined elevations in said tubing string, each tubing mandrel `having a vertical main bore extending therethrough, means forming an open topped, Well tool receiving pocketwithin said tubing mandrel,` sai-d pocket having its longitudinal axis offset from said main bore, a guide shoe comprising a cylindrical sleeve mounted in the upper end of said bore coaxially therewith, said sleeve having a longitudinal slot extending from the upper surface to the lower end thereof, said sleeve having its upper surface sloping. upwardly from each side of said slot, the vertical plane determined by said slot and the main bore axis and the vertical plane determined by said offset pocket axis and said main bore axis being angularly related relative to one another by a predetermined angle, and wherein said predetermined angle is different for each of said tubing mandrels, a running tool adapted toinsert and remove a well tool from the offset pocket of a selected one of said tubing mandrels comprising an elongated mandrel adapted to pass longitudinally through the sleeve of said tubing mandrels and having a radial bore therein, a locator key disposed in said radial bore, spring means for urging said key radially outwardly from said running tool mandrel, said key having an outer vertical ange adapted to ii't within said sleeve slot, said flange having a downwardly and outwardly sloping upper surface, an elongated connector member, means connecting the upper end of said connector member to the lower end of said running tool mandrel for pivotal movement of said connector member relative to said running tool mandrel in a single predetermined plane which includes the axis of said running tool mandrel, means on the lower end of said connector member for releasably engaging a well tool, said running tool'mandrel and connector member having their axes in `alignment at one relative position therebetween', and `spring means acting between said running tool mandrel and connector member for normally biasing said connector member to pivot about said running tool mandrel in said predetermined plane to a position wherein said running tool mandrel and connector member axes are out of alignment, said predetermined plane and the plane defined by the running tool mandrel axis and the radial bore therein being angularly related relative to one another atan angle corresponding to the pred'etermined angle of the selected one of said mandrels.- A t Y -Y f `Yv7.: A YVwell installation comprising Va tubing string, a plurality of tubing mandrels lconnected vatpredetermined elevations in said tubing string, each of said tubing mandrels havingraligned upper and lower necks and a main bore extending between said necks, means forming an open topped, Vwell tool receiving pocketV within-said oise't mandrel, said pocket having its`longitudinal axis offset from said main bore, a` guide shoecomprising a cylindrical sleeve mounted insaidupper neck coaxially there- Vwith,fsaid sleeve having a longitudinal slot extending from theupperY surface to the lower end thereof, the vertical plane determined by said slotV and the main bore axis bing Y and the vertical plane determined by said odset pocket axis and-.saidV main bore axis" beingiangularly related relative to one` another by a predetermined angle and whereinlsaid predetermined angle is different for each of said'tubing mandrels, a plurality of running tools eachV comprising an elongated mandrel adapted tol pass longitudnally through the sleeves of said tubing mandrels,'a locator'key projecting radially outwardly from said'running tool mandrel and adapted to it within said sleeve slots, an elongated connector member, means connecting the upper end of said connector member to the lower Vend of `said running tool mandreltorpivotal movement of said connector member relativeV to 'said running Ytool mandrel in a singleV predetermined plane which includes the Vaxis of V-said running toolY mandrel, means on ythe Vlower Y end of said connector member for releasably engaging a' wellftool,V saidfgrunning -tool mandrel and connector "memberihaving their axes in alignmentrat one relative Y positiontherebetween,` and springmeans acting betweenY said ru'r'iriing"tooLmandreLandconnectorl member for Vnormally:biasingsaid connector'memberto pivot about said running tool-mandrel rin said Vpredetermined plane pluralityof tubing mandrels connected at predetermined elevations insaid tubing string, each tubing mandrel having a :vertical mainbore extending` therethrough, means i Vforming an'open topped, well .tool receiving pocket With-A Y in` said tubing mandrel, said pocket having its longitudinalV axis offsetv from'sad main bore, a guide shoe comprising la'cylindrical sleeve mounted in the'upper end of said bore Y coaxiallyf therewith, said sleeve having a llongitudinalY slot tool mandrel, said key having an outer vertical .flange adapted to iit within'. said sleeve slot, said angerhaving a downwardly Vandi outwardly sloping upper surface, an elongated .connectorzmemben means connecting the yupper end of said connector member to the lowerfend of said; running Vtool lmandrel for pivotal movement of. said connector member relative to said running'tool Vmandrel in a single predeterminedplane -whichfincludesftheaxis of said runningftool mandrel,V means on Vthe lower end of said connector member for relea'sablyengaging a well tool, said running tool mandrel .andiconnector member having their axes in alignment at'onerrelative position therebetween, and spring means acting .between said running tool mandrel and connector member for normally biasing said connector. member'to pivot` about saidrunning tool mandrelrin said predetermined plane tova.posi

Y Ytion -wherein-'said .running vtool mandrel andrconnector member. axes are out Yof alignment,said predetermined plane and the plane deiined by the running toolzmandrel axis and the radial bore therein being angularly related relative to oneanother by ka predetermined, angle, Said last predetermined angle being different for each'of said runningtool mandrels and wherein one each of said running tools has its said predetermined'angleequal tothe predetermined angle of one each of said predetermined angles of said tubing mandrels.V Y

1- 10. -A runningrtool comprisingan elongated mandrel having a radial bore therein, a locator key disposed;` in

Y said radial bore, spring means for urgingrsaidkey'radially Lrunning 'tool'mandrelffor pivotal movement of said con-Y j to'la position whereinfsaid running .tool mandrel andv con-v `neetor Ymember axes are out of alignment,VV said predetermined plane and the plane dened'by the'running tool mandrel axis and saidV selector key being angularly re-V v nectorV memberv having theirY axes inalignme'nt, at onev nector member relativeY toY said mandrel in asingle predetermined plane which'includes. theaxisof saidgmand'rel, means on the lowerV endof said connector member for releasably engaging av well tool, said mandrel and conrelative position therebetween, and spring means ingengagement 'with lsaid mandrel and connectorfmemberV for normally biasing Vsaid connector member topivot about Y said mandrel ,to a position in said predetermined plane whereinsaidY mandrel and connectormember axes are out of alignment, said predetermined plane and the plane deiined by the mandrel Vaxis and theradial bore therein being angularly related `relative to eachotherkby a predetermined angle. Y

t l1l. A running tool comprising anelongated mandrel,

a vlocatorulteyV extendingV radially outwardly'v from said Y mandrel, Van elongated connector member, means .con-

extending from the upper surfaceV to the `lower end there of, Vsaid sleeve having its upperr surface sloping upwardly from'eachside of said slot, the vertieal plane determined Y bysaidrslotfand the main bore'axis andthe vertical plane determined' by said olset pocket axis and said mainrbore axis'being angularly related relative to oneV anotherV by a Y Vpredetermined angle and wherein said predetermined Aangle is diierent for 'each of said tubing mandrels Ya plurality of running tools each comprising an elongated Y mandreladapted to'passlongitudinally through the sleeves Y Y t of said tubing mandrels and having a radial `bore therein, Y 'g aplocator key disposed Vin said radial bore, spring'means`V for urging said'lre'y radially outwardly from 'said running VnectingtheupperV endfof saidrconnector member lto the lowerjend of said runningtool mandrel for pivotal move- Y ment'of saidconnector ymember relative tosaid mandrel in aI singleipredetermined plane which includes the' axis of saidrmandrel, said mandrel and connector member having their axes in alignment atrone relative position, l Y therebetweemand spring means in engagement with said Y mandrel and connector member for normally biasing said connector member to Y pivotV about said mandrel to a position 1n saidV predetermined planerwhereinrsaid mandrel and connector memberaxes are out of alignment, said predetermined plane'and the plane deiinedY by the runmng tool mandrel axis and the radial keyvibeing angularly relatedl relative to eachother by Va predetermined angle. Y Y Y l References cijfea in' the nienf'ihis patetf; j i UNITED VSTATES PATENTS 'I f 2,664,162' Howard'ef ai; fr pnrr- Dea 29, 1953 27,828,698 Bryanl..-;i Aprjl, 1958

Patent Citations
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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3268006 *Sep 10, 1962Aug 23, 1966Shell Oil CoMethod and apparatus for installing and retrieving well tools in well strings
US3610336 *Apr 23, 1970Oct 5, 1971Otis Eng CoLanding nipple with locator and orienting means
US3752231 *Mar 27, 1972Aug 14, 1973Camcor IncApparatus for installing and removing flow control units
US3796259 *Feb 7, 1973Mar 12, 1974Prod Specialties IncApparatus for installing and removing flow valves
US3827489 *Apr 25, 1973Aug 6, 1974Mc Gowen HApparatus for installing and removing flow valves
US3827490 *Dec 4, 1970Aug 6, 1974Camco IncApparatus for installing and removing flow valves
US3867983 *Feb 4, 1974Feb 25, 1975Neal William CKick-over tool
US3994339 *Feb 26, 1976Nov 30, 1976Teledyne, Inc.Side pocket mandrel
US4002203 *Sep 8, 1975Jan 11, 1977Camco, IncorporatedWell installation
US4031954 *Sep 13, 1976Jun 28, 1977Production Specialties, Inc.Flow valve installation and removal apparatus
US4033409 *Sep 13, 1976Jul 5, 1977Production Specialties, Inc.Well tubing mandrel with orienting sleeve with trash relieving slot
US4034806 *Sep 13, 1976Jul 12, 1977Production Specialties, Inc.Tubing side pocket mandrel
US4440222 *Feb 24, 1982Apr 3, 1984Otis Engineering CorporationSide pocket mandrel with improved orienting means
US5137085 *Jun 15, 1990Aug 11, 1992Ot's Engineering CorporationSide pocket mandrel
US5355952 *Feb 24, 1993Oct 18, 1994Institut Francais Du PetroleMethod and device for establishing an intermittent electric connection with a stationary tool in a well
US5944108 *Aug 28, 1997Aug 31, 1999Baker Hughes IncorporatedMethod for multi-lateral completion and cementing the juncture with lateral wellbores
US6279659 *Oct 20, 1998Aug 28, 2001Weatherford Lamb, Inc.Assembly and method for providing a means of support and positioning for drilling multi-lateral wells and for reentry therein through a premilled window
USRE29870 *May 17, 1976Dec 26, 1978Sid W. Richardson FoundationApparatus for installing and removing flow valves
WO1998009048A1 *Aug 29, 1997Mar 5, 1998Baker Hughes IncorporatedRe-entry tool for use in a multilateral well
Classifications
U.S. Classification166/117.5, 166/316
International ClassificationE21B23/03, E21B23/00
Cooperative ClassificationE21B23/03
European ClassificationE21B23/03