US2401119A

US2401119A - Well tool

Info

Publication number: US2401119A
Application number: US463717A
Authority: US
Inventors: Jr Raymond G Taylor
Original assignee: Guiberson Corp
Current assignee: Guiberson Corp
Priority date: 1942-10-28
Filing date: 1942-10-28
Publication date: 1946-05-28
Anticipated expiration: 1963-05-28

Description

I 1 1946- R. G. TAYLOR. JR

/ WELL TOOL Filed Oct. 28; 1942- 2 Sheets-Sheet 1 5 E22 /.9 .fi ii g is f/g. Z

1 HWHQUOR /?A YMO/VD G. 72mm, JR. H

TTORNEY Patented May 28, 1946 g g m Raymond G. Taylor, Jn, Dallas, Tom, assignor to The Guiberson Corporation, Dallas, Ten, a i corporation of'Delaware I i Application Octobe 28, io iaseriei' No. 462,717

13 Claims.

The invention relates to a retrievable well tool, such as, forinstance, a bottom hole choke and Figure is a cross-sectional view taken on the line 5--5 of Figure 2. i a

and 2, a running-in is adapted for use in a string of tubing in an oil Referring to Figures 1 r well. This tubing is provided with joints, the mechanism supports the well tool and the enends of the tubing being separated slightly and 5 tire, assembly is lowered into the tubing I by connected by an outside collar, thereby forming a means of a wire line ,2. The wire line, supp rts an annular channelway between the sections of the running-in -mechanism which includes a the tubing. The invention relates to utilizing socket 3 which supportsa rodfi, onlwhich a colthis annular ch'annelway as a means to anchor lar 5 'is slidable. Attached to the collar 5 are the retrievable bottomhole choke. springs 6 which are bowed outwardly ancl contact A t object, of t invention is prothe inner surface of the tubing so as to create a vision of a well tool which may be lowered into d s- The lower ends ofthe sp gs 6 are sethe tubing by 9, i 11 and after t W9 tool cured to a hollow sleeve 1 which is provided at its has been anchored in the tubing, the wire line 1 lower end With an dly, extending cam surand certain parts carried thereby may be removed face A the Parts are we m the t i from the well, leaving the well tool securely posithe friction between the springs 6 and the tubing tioned at the desired point in the tubing, I causes the sleeve 5 to rest against the stop at Another object of the invention is the proh lower n of the Socket P is shown In vision of means to retrieve the well tool so that Flgure The am s at Its lower end a it can be remov d fro the n 2o latch member 9 wh ch, at its lower end, forms a Another object of the invention is the elimis1 eeVe The m is provided nation of all shear pins or other parts which must igxg g sig g g gi s a g g i g 225 55 m A w e l 1, 0 that the head projects Another ob ect of the invention 15 to provide as viewed m Figure 5 i 1 from the member 9 so that it would be a strong, sturdy device which is simple in conoutward y engaged by the cam surface ,8, if the members struction, easy to manufacture with parts which 1 and 9 moved relative to each other a sufficient an be easily replaced, if this should be necesc extent to cause such engagement. The slide pin g Wear or and the II carries a latch ll which protrudes through a m nanon of comp mated strum-Pm Whlch might hole in the sleeve l0, and so that it will underlie easily become damaged or require constant ada shoulder |5carr1ed by a mandrel |5 c0mpfls Justment' ing part of a retrievable well tool.

Other ob eets and advantages of the invention The mandrel "515 provided witha lonmtudmab m the detalled spemficatmn and ly extending bore I! through which wellliquid clams Whlch followa a may pass. The mandrel is also provided with an m invention be m undFrstoofi by 3- intermediate shoulder 18 so that the section ferring to attached drawmgs Whlch thereof above the shoulder I8 is of lesser diameter figure 1 15 an elFvational View Partly in than the section below the said shoulder. sectmn, d showmg the tool and the relative 40 A sleeve 19 surrounds a Portion of the mandrel p siti n of th parts t r o in th nditi n in It. This sleeve is provided with a shoulder 20, which they would be while the ol isbeing run and the mandrel is provided with a shoulder 2|. into the well, A coil spring 22 is positioned between the shoul- Figure2isaview similar to Figure 1, but showders 2n and 2| so as t urge t mandrel, l6 n the runnin n echanism unlatched from downwardly relative to the sleeve l9.-,'I'he'sleeve the well tool Jus prior to the runn -i 1 1 15 i provided with anannular channeiway 23,

being lifted from the well tool, ,and the lower portion of the sleeve I0 is proi ure 3 is an elevational view, P tly in crossvided with holes 24 which receive steel balls 25. i i section, of the well tool with the running-in when the parts are in the positionshown in 1 j mechanism removed therefrom and with the Figure 1, the upper end of the mandrel I6 is well tool locked in the well tubing, positioned within the sleeve l0 and the mandrel Figure 4 is an elevational view, partly in crossholds the balls 25 in the holes 24 and channelway section, showing thewell tool with a retrieving 23, sothat the sleeve l9 isthereby locked to the 1 tool latched thereto with the inner mandrel being sleeve I0, and it will be remembered that the pulled from behind the locking dogs, and latch I4 is latching the latch member 9 to the f 1 .i ar fot: the; parts as the running-in mechanism and .retrievable well tool are lowered in the tubing l.

, retrievable choke.

' not move the sleeve l6 downwardly so as to 1 mandrel l6 so that when the parts ar in this position, there can be no relative movement between the mandreLLiJhe sleeve 19 and the run- A register with channel section 30 in the dogs,

and a garter spring 3| passes circumferentially around the dogs and the sleeve l9, and is positioned in the channel '30, This spring tends to hold the said dogs'in their rtraiitedpositions, as shown in Figure 1. The sleeve I9 continues downwardly a short distance below the said dogs and is secured to a hollow sleeve 32 which carries a sealing cup 33. -The sleeve 32 is connected by a colla 34 to a choke 35.

The running-in mechanism includes the parts shown in Fig. 1 which support. the 'parts'shown in -Fig. 3,- and- Which-"may; be removed from the well, .leaving'the well tool in the well tubing. The well tool includes the parts which may be anchored in. the well and left therein-when the running-in tool is removed.

As shown in Figure 1, the running-in tool and the retrievable well tool. arealllowered into the tubing by the wire line}, with. the collar 5 resting against the-lower end -of the socket 3. There rrv relative movement between any Succeedingsectionsofthe tubing I are slightly spaced apart and are connected by a collar 36 forming an annular channelway 31.

When it is desired to set the retrievable choke in the tubing, the wire. line is raised. The drag between the spring 6 and the tubing causes the collar 5 and sleeve I to tend to remain stationary relative to the tubing,so that the latch member 9 is moved upwardly into the hollow section of the sleeve 1, resulting in the head |2 of the slide lowered to a point adjacent the channelway 31,

" whereupon the cam surface 26 would move these dogs outwardly as the spring 22 moves the mandrel'downwardly so that the parts would then be in the position shown in Figure 2. At this time the steel balls 25 would be released so that the running-in mechanism would be released from the well tool and could be raised to the surface of the Well, leaving the retrievable well tool in the well, as is shown in Figure 3.

When it is desired to remove the retrievable well tool from the well, a retrieving mechanism is lowered on a wire line 38, as is shown in Figure 4. The wire line 38 supports a socket 39, which carries a rod 40 supporting a hollow sleeve 4|, which has an upwardly flaring surface 42 near the lower inner portion thereof. Within the sleeve 4| are dogs 43 provided with grab teeth 44. The dogs' 43 are normally urged downwardly cause the grab teeth 44 to clench the upper end smaller diameter portion of the mandrel l6 above the shoulder I8 will now be behind the steel balls 25, thereby allowingthe steel balls to move inwardly outof the channelway 23 and thereby release the sleeve l'0 forming a part of the runningin tool from the sleeve I9 forming a part of the However, the spring 22 canposition it behind the dogs 21 unless the dogs are adjacent one of the channelways 31 in the tubing, for there is not sufflcient clearance between the lower section of the mandrel and the tubing to permit actuation of the dogs 2'7 except at the channelway 31 at one of the tubing joints. It is only at this point that thedogs 21 can move outwardly against the tension of the spring 3| a sufilcient distance to allow the lower portion of the mandrel to be positioned behind said dogs. Therefore, if the operator should attempt to set the retrievable well tool at a point other than a tubing joint, the steel balls 25 would not be unlocked until the dogs had been raised or by means of a spring 45. The retrieving tool can, therefore, be lowered into the well so that the cam surface 46 at the lower end of the sleeve 4| will center the retrieving tool relative to the mandrel I6, and so that the upper end of the mandrel will project, upwardly through the dogs An upward pull on the wire line 38 will of the mandrel I6, the flaring surface 42 urging these dogs inwardly. The mandrel I6 is now elevated as the wire line is raised, thereby moving the lower section of the mandrel from behind the dogs 2'! so that these dogs will be cammed by way of illustration herein, and I desire to.

claim the same broadly, reserving-to myself the right to make such changes and modifications therein as may fairly fall within the scope of the appended claims.

Having now described my invention,'I claim:

1. In combination, a wire line, a rod supported by said wire line, a latch member cargied by said rod; said latch member including a laterally slidable pin and latch, a releasable well tool including a mandrel having a shoulder which may be engaged by said latch to support the mandrel and cam means slidable on said rod to actuate said pin to release the latch from the mandrel when the wire line is raised relative to the cam means.

2. In combination, a wire line, a rod supported by said wire line, a latch member 0 rried by said rod, said latch member including a aterally slidable pin and latch, a releasable well tool including a mandrel having a shoulder which may be engaged by said latch to support the mandrel, a sleeve'slidable on said rod and provided with a cam surface, means to hold said sleeve stationary when the wire line carrying the rod and latch member is raised, said cam surface serving as a means to actuate said pin to release the mandrel when the wire line is raised said sleeve tolseal the space between said is supported thereby, means whereby the latch is released from the mandrel when the wire line is raised relative to said means, said second sleeve being provided with a channelway, said first sleeve being provided with holes, balls held in may be lowered into a tubing string having an, nular channelways at, tubing joints, a sleeve place in said channelway and holes by said the'tubing joint and a choke supported by said sleeve. H 9. In combination, a hollow mandrel which slidable on said mandrel, said sleeve being provided with a plurality of recesses, dogs carried by said sleeve in said recesses, means tomove the mandrel relative to the sleeve, means whereby the movement of said mandrel will move the dogs outwardly of the sleeve into locking engageslidable on said mandrel, said sleeve being pro- 1 vided with a plurality of recesses, dogs pivoted to said sleeve and lying partlywithin said recesses and means to move said mandrel relative to said sleeve, and means whereby the movement of said mandrel will move said dogs outwardly into look ing engagement with the tubing joint.

5. In combination, a hollow mandrel which may be lowered into a tubing string having annular channelways at tubing joints, a sleeve slidable on said mandrel, said sleeve being provided with a plurality of recesses, pivoted dogs carried by said sleeve in said recesses, a cam forming a part of said mandrel and means to move said mandrel relative to said sleeve to move said cam into engagement with said dogs to move the dogs outwardly into locking-engagement with. the tubing joint, the dogs having a thickness greater than the distance between the inner wall of the tubing string and the outer surface of the cam on the mandrel.

6. In combination, a hollow mandrel which may be lowered into a tubing string having arinular channelways at tubing joints, a sleeve slidable on said mandrel, said sleeve being provided with a plurality of recesses, dogs carried mentwith the tubing string and a sealing cup anda choke supported by said sleeve.

10; In combination, a hollow mandrel which may be lowered into a tubing string having annular channelways at tubing joints, a sleeve,

slidable on said mandrel, a plurality of dogs carried by said sleeve, said dogs whenin retracted position projecting inwardly of said sleeve, means tending to move said mandrel relative to said sleeve so as to cause said mandrel toproject said dogs outwardly of the sleeve, said dogs having a thickness greater than the distance between said mandrel and the main section of the tubing string so that said dogs prevent said mandrel from fully moving the dogs outwardly except when the dogs 0 are first positioned opposite one of said channelto move said mandrel relative to said sleeve to position said cam surface behind said dogs and by said sleeve in said recesses, a cam forming, a a I part of said mandrel, means to move said mandrel relative to said sleeve to move said cam into ena of said channelways.

gagement with said dogs to move the dogs outwardly into locking engagement with the tubing joint, the dogs having a thickness greater than the distance between the inner wall of. the tubing string and the outer surface of the camon the mandrel, and a garterspring engaging said dogs and tending to hold said dogs in their retracted. positions. g 1

7*, In combination, a hollow mandrel which maybe lowered intoatubing string having arr-1 nular channelways at tubing joints, a sleeve slidable on said mandrel, said' sleeve being provided with a plurality of recesses,- dogs;=carrled by said sleeve in said; recesses, means to move the mandrel relative Jto, ,sleeve;} means whereby the movementf'ot saidlmandrel willimove the dogs outwardlyinto lockingengagement with thetubing joint 'and. a sealing cup supported by and the tubing string. v

8, In combination, a hollow mandrel which may be lowered intqa tubing string having annular channelways at tubing joints, a sleeve slidable on said mandrel, said-sleeve being provided with aplurality of recesses, pivoted dogs carried by said sleevein said recesses, a spring tending to hold said dogs in their retracted posisleeve to cause it to engage and move the dogs outwardly of the sleeve against the tensionof 3 tool having a mandrel may be lowered into a 5 movethem outwardly of said sleeve into engagement with the tubing string. said dogs being of a thickness greater than the distance between saidenlarged portion and the main section of the tubing string so as to prevent the enlarged portion "from moving behind said dogs, except when, said dogs are first positioned opposite one 1 2. A'running-in mechanism" whereby a well tubingand secured to the tubing at a desired depth, including. a ;rod, a wire line supporting said rod, .8, collar slidable on said rod, bowed springs secured to said collar and engaging the inner wall of the tubing, a stop to limit the upported by said springs, a latch member carried. by said rod, said latch member carrying a latch. adapted to engage saidmandrel and support the sleeve tion, means to move the mandrel relative to said ward movement of said collar relative to said rod, a sleeve provided with a cam surface supsame when the running-in mechanism is being lowered inthe tubing, said wire line when raised lifting said rod and well tool while the collar is held stationary relative to the tubing so that the latch is engaged by said'cam surface to thereby release said latch'from the mandrel.

13. In combination, a wire line, a rod supported thereby, a sleeve supported by said rod, a mandrel, a second" sleeve extending over the lower portion of 'said mandrel, a latch normally conmeeting said first sleeve to the upper portion of -,the mandrel, means connecting, said first sleeve to the second sleeve so that all of the above named parts maybe lowered as a unit into a well tubing, dogs carried by the second sleeve to engage channels in the, tubing when the dogs are released, means to hold the dogs in retracted position as the wire line and parts carried thereby are lowered, means to release the mandrel from the first sleeve when the wire line is raised, means to actuate the mandrel when it is released by the first sleeve, cam means carried by the mandrel ftending to actuate-said dogs whenthe mandrel is released so as to project said dogs into said channel in the tubing vwhen the dogs have been raised adjacent to the channel, and 'n'ieans to thereupon release the-means connecting 'the first and second sleeves so that the first'sleeve may be removed from the tubing.

, RAYMOND' G. TAYLOR, JR.