US1405223A - Casing spider and slips - Google Patents

Description

B. F. KELLEY. CASING SPIDER AND SLIPS.

APPLICATION FILED DEC.27, 1920' Patented Jan. 31,1922.

3 SHEETS-SHEET 1- ,3. zzf'ezmy ATTORNEY WITNBSES:

B.F. KELLEY. CASING SPIDER AND SLIPS. APPLICATION FILED 050.27, 1920.

ATTORNEY WITNESSES:

B.. F. KELLEY. CASING SPIDER AND SLIPS.

APPLICATION FILED DEC-27,1920- Patented Jan. 31, 1922;

3 SHEFTS-SHEET 3- WITNESSG 5 UNITED .sTAr l:. s

BE JAMIN r. KELLEY, or TULSA, OKLAHOMA.

CASING. SPIDER AND s'LIPs.

Specification of Letters Patent. Patented J an, 3-1, 1922.

Application filed December 27, 1920. Serial No. 433,468

To all whom it may concern:

Be it known that I, BENJAMIN FRANKLIN KELLEY, a citizen of the United States, residing at Tulsa, in the county of Tulsa and State of Oklahoma, have invented new and which pull the casing from the well, to

hold the casing against slipping when new grips are to be obtained thereon.

It is the object of this invention to simplify and improve the existing art byproducing a mechanism wherein the slips are positively guided to casing engagement and are automatically brought to release position by means associated with and operated by the main pull line when the latter is in taut condition by the weight of the casing to which'it is hitched.

It is a further object to produce in a casing spider and slip, weightedmeans for influencing the slips to casing engaging'position, guide means for said slips, swinging "means for bringing the slips to casing re 35 lease position, automatic means influenced by the pipe lowerlng means fOr'mfluencmg the swinging and weighted means to retain the slips in release position, and manually operated means for influencing the swinging means to permit'of theslips engaging the casing to hold the same, regardless of the, taut condition of the casing lowering means; i i I The invention further resides in the novel construction, combination and operative arrangement of parts.

The foregoing, and other objects which will appear as the nature of the invention is better understood, may be accomplished by a construction, combination and association of elements such as is disclosed by the drawings which accompany and which formpart of'this application.

In. the drawings';

Figure 1 is an elevation of the improve- Figure 2 is a greatly enlarged'sectional view on the line 2-2 of Figure 1, looking downward.

Figure 3 is a sectional view on the line 33 of Figure 2.

Figure 41-. is a detail sectional view on the line t-l of Figure 2.

Figure 5 is a side elevation ofthe guide.

housing.

Figurefi is a plan view showing the arrangement of the slips when associated.

Figure 7 is a plan view of the spider.

,cment arranged in gripping position with .a well casing, parts being in section, and parts being broken away; a useful Improvements in Casing Spiders-and Slips, of which the following is a specifica- Resting on suitable'beams v1 is a spider 2,

that constitutes one of the elements of the improvement. fThe spider has at diametrically opposed points outstanding lugs 3 to which are pivotally'secured bails 4, whereby the device may behandled. For lessen-v ing the weight of' the spider, the lugs preferably have their upper facesrentrally depressed or grooved longitudinally.

' The spider has .its cylindrical bore 5 flared inwardly from the top to the bottom thereof, and in the said bore there is aliner 6 that has its outer surface resting on the bore '5 and flared complementary with. the

flared bore of the said spider. The bore of thefliner 6 is also flared from the top to the bottom thereof, the said borebeing in .dicated by the numeral 7. Preferably the V linerfslightl'y increases in thicknessfrom the upperltothe lower end thereof,-;and its .said

lower end is" beveled or, flared inwardly, as

atSto thebore'7..f p

Screwed "n suitable openings which are 'arran-ged at diametrically opposed points on the upper face offthe spider and: which are projecting lugs 31" of the said spider, are

guide pins 9 for the lifting ring 10 of the arranged right 'ang'ularly with respect to the.

as at 1 1, to .the upper face of the spider. 2-

is a guide housing 12. The guide housing is in the form of an invlertedicupshaped member including afflat. base 13 that is flanged both'inwardly and outwardly with respect to thetubular body 14 of the guide housing. The tubular body has spaced openings therethrough, and the portions 15 provided between the openings are reinforced, on their outer faces by ribs 16. The annular top of the guide housing is indicated by the numeral 17, and the central opening therethrough has its walls, from the top and bottom edges thereof flared inwardly, as at 18 and 19 respectively. The web portions 15, provided betweenthe openings in the body of the guide housing have their upper portions extending angularly to the annular or ring-shaped top of the housing, and each of these portions has an integral tubular boss 2O thereon which is connected to the ribs 16 and to the top of the housing. Each of the bosses has its bore 21 arranged at an inward angle with respect to the guide housing, and through each of the said bores there is arranged for slidable movement a guide pin 22 that has its lower end threaded and screwed in threaded openings in the widened top portions of the respective casing slips 23. As disclosed in Figure 6 of the drawings, four casing slips are employed. Each of the slipsis segmental in plan, having its inner face toothed, as at 24 and its outer surface flared inwardly from the .top to the bottom thereof, as at 2 5. The flared surfaces 25 are complementary with the flared bore 7 of theliner6,being disposed in contacting engagement with the said bore. By reference,.especiallyto Figure 6 of the drawings, it will be seen that the'confronting ends of the casing slips are out ofcontacting engagement, and also that each of the slips, to the opposite sides of the threadedopenings 26 that receive therein the angularly arranged guide pin 22, has additionalcor reduced threaded openings 27. In the pairs of openings 27on each of theslips there are screwed eyes 28, which receivetherethrough links 29, the said links being also'connected to eye bolts 30 that pass through openings and are secured by nuts 31, on inwardly directed 'ear portions 32 on the top flange of pthe lifting ring 10. reference, especially Ilargements or bosses 1 34 fat diametrically to Figure 2 of'the drawingsflt will beseen that the top flange of the lifting ring is scalloped from the inner edge thereof so thatqcomparatively deep openings 33 are provided between the ,inwardly'projectin'g portion which I have termed cars 32. Four of the openings 33 are arranged to receive therethrough an I angularly arranged guide pin of the casing slips. The lifting gu de, p1ns 9 pass through openings infenpo'sed points on the ring outward; of the .guidehou sin 1 2. The lifti, 11g'-,rin,g 10 has ts sides, in a line .with the'bosses 34:, pro- ,vided ,with outwardly projecting {hub ,por-

,to which are .connected, as .at 36 oepending hnks 37. Each 'link 37 has its .movement.

body portion arranged at a slight outward v angle, but its ends are strai and the lower straight ends are pivotal y connected, as at 38 to the sides of a spider lever 39.

The spider lever is in the nature of a split the wellcasing tube sections are received. The casnw sh as bein constructed of metal a a g are comparatively weighty, "but additional weight is imparted thereto by the lifting ring 10 which is substantially hingedly .connected to the casing slipsby thelinks 29 so that the casing slips'will he forced down.

wardly in alignment, and the toothed inner faces thereof willnormally engage the zcas ing 45 to hold the casing againstdownward The teeth of the casing slips comprise straight horizontal shoulders and walls being; directed upwardly permit of the upward movement of the casing 45. Such movement .ivould,of course, slightly angle Walls between the shoulders, the angle move the casing slips in an upward direc" tion. The casing slips are positively guided at a desired angle to bring the saineaway 7 from the casing 45,, throughsthe inediiimof the pins 22, and the infiared portion at the end of the bore ofthe liner (Spermits of a free passage of the casing scctions tti and their couplings {16 either in a'njupward or a downward .dlrcction. being gulded by the lifting-ring guide plns The liftingring,

9 will also be raisedin a perfectly horiz'ontal position whenannpward pressure is applied to the vbailend of thespider lever.39.

.A portion of ;the derrick floor, is in dicated inFigure 1 of the. drawings by ,the

numeral 45. The derrick floorhas'an opening 4 -6-therethrough for' thejcasing sections 45 and their couplings 46. ,Toxone side of the openings 46 the floor, 45 has another 2 opening 47 innvhich, isarranged guide pulleys 48 for a cable 49 that issecured, as atf50;{-.

a lever 52. This leve xhas :annpset .end.53

tothe spider lever 39.; On the cable there is Pivoted, as at. 51, to. a

that passes through anopening, 54 in the;

floor 4:5. The angle end v53 of the lever is headed, .as'at 5.5 The lever is provided with a 'laterally extended ,or' w dened portion 56-, having an opening through wh ch arable 49 passes. The widenedor eye ,por-.-.

tion 56' of the lever normally rests. on the stop. member 50 on the cable 49. a

The upper end of thecable 5L9 ,is" connected to one end of the helical spring 57.

moved downward in the liner so that they pending element 61' therefor. This, of

in such condition when supporting the easmove the latter out of easing engaging {pothe well. In alike manner, by reversing the in; the cables'for the spiderlev'er will be To the opposite end of the spring there isfla second cable 58 which is secured to a down- Wardly directed angularly disposed ear'59 on the upper end and at the lower corner of a hollow substantially :rectangular member 60. The corner of the member 60 diagonally opposed to that provided with the ear 59, has an upstanding ear 61 to which is connected a short rope or cable 61 that is Wound around and secured to the first girt 62 of the derrick, as indicated by the numeral 68. The member 60, adjacent to its lower end has journaled therein peripherally grooved guide wheels 64 for the main pull line 65 that is connected to the ground pulley of the derrick (not shown). The line 65 is guided through the body of the member 60 'under a grooved sheave 66 which is journaled atthe upper corner of the said member 60. The line 65 is hitched to one of the casing sections 4c5, The member 60 not only provides a guide for the pull line 65, but being hingedly supported by the element 61 on the girt 62, and being influenced to an angular position by the spring 57 of the cables 49 and 58, serves as a control means for bringing the slips either into or out of casing gripping position. I

When the member 60 is in angular posi- 7 tion, as illustrated in Figure 1 of the drawings, the spring influenced cables connected to the spider member permit of the latter, assunning its normal inactive position, the same resting on one of the lugs 3 of the spider. Thus the weight influenced casing slips are are in gripping engagement with the casing section 45. When the'main pull line 65 is drawn taut, the member 60 will'be swung to vertical position along the side of the suscourse, occurs when the main pull line 65 is in its straight and taut condltion, and it is ing sections for lowering the same into the well. The swinging of the member 60 causes pull on the spring influenced cable "that is ucon'nected'to the spider lever 39,

swinging the latter upon its pivots'tl, causing the same through the medium of the links 17 to move'in an even upward vertical direction the lifting ring 10 which latter, by its link connection with the casing slips, will sition. Thus the casing may be lowered in =movement of the pull line 165. the casingmay' be withdrawn from thewelh Should the pull line become broken, the member 60,

through the medium offthe springconnectagain swung to the position'illustrated in "Figure l offthe drawings, slacking the last m'en'tioned cables and permitting the spider "lever to drop-by gravity and 'carry therewith the ring" 110 and the casing slips 23, the latter being forced in pipe engaging position by the link connection between the same and the lifting ring 10, but are, as previously stated,

properly guided by the pins 22. Aga'in,

when the pull line 65 is taut and the member 6O swung to vertical position, should it be found desirable to prevent the lowering of the spring 57, slacking theportion of the said cable below thesto'p 50", permitting the spider lever, ring and easing slips to swing or gravitate downwardly so that the casing slips will be brought into casing gr pping position.

It is believed that the foregoing description, When taken in connection withfthe drawings will fully set forth the simplicity and advantages of the improvement to those skilled in the art to which such inventions relate so that a furtherdetailed description is not considered necessary. It is considered,

however, necessary to state that the drawings and description refer toa -satisfactory embodiment of the improvement asit now appears to me, and that I may 'a'tj'a later date,

make suchchanges therefrom as fall within the scope of what is claimed. Having described the invention, I claimz- 1. In an apparatus of .the'class described,

the-combination of a casing'to belowered or a raised, casing slips iiormally engagingthe casing, guide" means "therefor," weighted means associatedwith each other, and with the slipsfor retaining the'slips in casing engaging position, flexible. operating means for said last mentioned means, a pivotally supported member connected 'witlisaid flexi- "ble means and normally retained by the lat ter in an angular position, apuu line guided through said member andxhitched' to the easing, operating means for'fthe'pull' lin'e,and*

said pull line, when drawn taut, by the operating means and the weight .of the dis ing to which it ishitchedgadapted to swing the pivoted member in an upward direction to draw on the. flexiblemeans to operate the means associated therewith 'andbringjthe slips to non-casing engaging position;

2. In an, apparatus of the class described,

means therefor, pivoted means engaging the an angle when'the operating, means for the pull line been ,halted; and the' pull line slackened, 'me'an's foiimov'ing the isli'ps 'to non-casing engaging position, and'operating means between said, last mentioned means and said pivoted means whereby, when the 'pull line is drawn taut 'ancl 'the said" pivacasing to be raised or lowered, weighted I toothed slips normally engaging the I a pull line hitched to'th'ejcasing, operating iso oted means is moved thereby to an upward and substantially vertical position, to influence the last mentioned means to actuate the slip operating means and bring said slips to non-casingengaging position. 7

3. In an apparatus of the class described, a' well casing to be raised or lowered, a

, spider, slips therein normally engaging the casing for holding the 'casingagainst movement in a downward direction and for permitting movement of the casing inan upward direction, means influencing the slips for bringing the same to casing engaging position, apullline hitched'to the casing, a, pivotally supported member through which the pull line is guided, means connected tosaid member and the slip influencing means for causing the said member to assume an angular position when'the pull line is taut or broken and to also cause the slips to engage with the casing, and said pivoted member adapted when the pull line is drawn taut to be swung substantially vertically and draw upon the operating means for the slip mfluencmg means to ac-' tuate the latter and bring the slips out of casing engagement. 1

4. ;In an apparatus ofthe classdescribed, a well casing to be raised or lowered, a spider surrounding thecasing, slidable slips therein normally contacting the casing for holding the sameagainst outward butrper the flexiblemember passes, and said lever having its eye normally resting on the stop, the guide member {for the pull cable designed, when the cable is drawn taut to be swung upon its pivot to draw on the spring influenced flexible element to cause the latter ,toactuate the slips influencing means and bringtheslips out of casing engagement, and the said lever, when actuated,

' designed to expand the spring of the flexible member to slacken the portion thereof below the stop to permit of the slip influencing means to bring the slips to casing engaging -,;position. 7 v

5. Inanapparatus oftheclass described, the {combination with a well casing. to be raised or lowered, weighted casing slips engaging the casing, directing means therefor, guide means for the slips, means movable toward and away from the slips looselyvassociated with said slips, swinging means lmove the pivotallyfsuppo'rted means to a connected with said movable. means, flexible spring influenced operating means for the swinging means, pivotally supported means connected to said flexible means, and normally retained at an angular position by said flexible means, a pull line guided through the pivoted means and hitched to the casing, operating means therefor designed to draw the pull line taut and to move the pivotally supported means to a position to draw on the flexible means to influence the swinging and movable ,meaus to bring the slipsmtoQn'on-casmg engaging position, a v

6. In an apparatus of the class described, the combination with a well casing to be raised or lowered, weighted casing slips engaging the casing, directing means therefor, guide means for the slips, means movable toward and away from the slips loosely associated with said slips, swinging means connected withisaid movable means, fflexible spring influenced operating means for the swinging means, pi'votally supported means connectedto said flexible means, and nor 'mally retained at an angular position by said flexible Vmeans, a pull line guided through the pivotedmeans and hitched to the casing, operating means therefor designedtodraw the pull line taut an'dto position to draw on the flexible-means to influence the swinging and, movable means to bring the slips to no'n-casingengaging position, and manually operated means engaging an element on said flexible means for permitting the slacking ofsaid flexible means below said element to permit of the means associated with the slips for return-' ing the latter to casing. engaging position 7 regardless of the tightening or slackening on the pullv line. I I

7 In an apparatus ofthe class described, a spider having a downwardly tapering opening, a tapered liner therein having its lower end flared inwardly, toward the reduced portion of the bore thereof, a well casing section to be raised or lowered pass- 1ng through the liner, casing slips com- 'prisingspaced segmental member's"having their inner faces formed withtransverse teeth, and their outer surfacestapered to engage with the tapered'bore of the liner, a guide housingsecured on the spider, a

lifting ring surrounding the guide housing,

guide pins between the spider and the guide ring, angularly arranged guide pins between -the'respective slips'and the guidehousing, pivoted links between the lifting ring and the respective casing slips, a spider lever comprising'ia split ring member whichxhas its ends pivotally connected to the spider,

a1 pivoted link-connection between thesides of the spider lever and thev lifting ring, ;a

,divided cable hav ng. one of its ends secured 1,30

to the spider lever, a spring connecting the and hitched to the pipe casing, and operatconfronting ends of the cable, a pivotally ing means for said guide line, all as and supported guide member to which the opfor the purpose set forth. v 10 posite end of the cable is connected, astop In testimony whereof I aflix my signaon the lower cable member, a pivotally ture.

supported lever engaging said stop, apull i 7 ,7 line guided through the pivoted member BENJAMIN F. KELLEY.

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