US 1523928 A
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"i E. FF. BERNEX" AL.
ETTXNG TOOL AND SAFETY JOINT 2 Sheets-3heet l Filed July .3J
LINER S tm: 2Q), 5925.
vE. P. BERNEY ET AL LINER SETTING TOOLA AND SAFETY JOINT heet 2 Filed July 3, 1925 Patented den., 2li, i925,
ZEKER SET'PING TQL AND MFETY JINT.
nppneaon sieebuiy a, ieee.
To all whom t may camcom:
Be it known that we, EDWARD l?. Benner and EMMETT H. lil'cli/AHAN, citizens of the United; Statesv residing at Huntington 6 Beech, county of Ora-nge, State of Californio, and Brea, in the county of Orange and State of Celifornie., respectively, have invented new and useful improvements in Liner Settingl rllools and Safety Joints, of i which the 'following is a specification.
This invention relates to deep well apperatns, and. more' particularly to deep well tools end joints.
As is well known in deep well operations, otter or es the well is drilled, s casingiis lowered into the well and for one or another cause the casing: cannot be further lowered :md takes e stationery position below which it is desired not only to sink the well, but to also provide n continuation of the casing. This continuation is commonly known as the liner. in some ceses. this liner een be lowered freely after the hole is deepened, but in other ceses the well formation packs up in the casing end in the lower portion of the hole in the form of sand or mud, and it is en object of the present invention to provide means on'taciliteting the lowering ot theliner into the desired position in the lower portion of the kcasing and to the bottom of the well. v
A further object is to provide a liner setting tool and :in improved joint of extreme ly simple construction, and which is substantial and r/elieblein action, and. is readily operable both in the making and breaking joints in the string; of elements orminga liner lowering tool or tool for other purposes. An object, in this connection, is to provide a joint of substantially threadless, effective form which is of such design :md construction that the joint provides for the ready attachment and detachment of ns associated elements without danger of lun- 'screwing other screw threaded, connecting portions of the apparatus in hand.v
Other objects and advantages will he made manifest in the 'following specificetion of an embodiment of the invention ii insti-ated in the accompanying drawings, wherein j Fig. 1 is s longitudinal section and pen ves used for the lowering et' e Serial Ito; 849,302.
tial elevation of well e peratus in which o liner is being lowered #y utilization lot the present joint. i I
Fig. 2 is a vertical section and partiel elevation of e well showing the 'liner in,
`lowered position below the casing ieed.
Fig. 3 is e detail, vertical, sectional view showing e liner provided with e guide on 6o its lower end, and showing the nrrengement of the wash pipe nozzle resting the nipple for the circulation of wash, Water npwerdly about the liner being lowered and insideof the casing.
Fig. 4lis :i longitudinel section of .the joint body es applied to e liner.
Fig. 5 is n cross section on the line 5-5 of Figure Il. 'l
Fig. 6 is s longitudinal section of the setl0 ting tool or mandrel assembled upon e Water pipe which is to he lowered by the tool while the latter is connected to its combined, complementary joint body.
Fig. 7 is e longitudinal eentrel section l5 showing the mandrel es interlocked with the joint body and. packed therein.
Fig. 8 is e cross section on line 8`8 of Figure 7. j
In Figure l, the invention is illustrated il@ Y string of pi e sections or tubes 3, which is to be set in t e well casing 2, which is positioned in the well. W, so that the string of pipe sections will forni a substantial continuation of the @e casing 2, and is commonly known as s. liner. The present invention includes en improved moons for making n joint between the upper end of the liner 3, end :i liner j set-ting,y tool whereby the liner can be lower no ed to the requisite position in the casing.
The tool end joint consists oit' what may be considered as on inverted shoe comprising substantially :i cylindricalbody 5 of substantial proportions, the lower end of which is internally threaded at G to receive the contiguous end of the liner 3, and the j. upper end of the joint body 5 is 'shown as inwardly and downwardly lievelled et 7 to provide a convenient and effective guide l0@ means for leading the tool or mandrel part 10 into the chamber 5 of the joint 5; this chamber being preferably cylindrical inA form and having en inside diemeter rip-1 proximating the inside diameter of the liner 3 so as to form a continuous, substantially smooth bore.
The joint 5 is prov'ieed with a plurality of longitudinal, internal or incloeed slots or recesses 8, each of which has a transverse or L portion 8a, and this intersects a blind slot 8* having portions extending up and down from a cross slot 8a. ln other words, the slot 8, as a whole, is of generally bayonet slot form but has oppositely extending end portions formed by the slot 8:
The tool 'body or mandrel 10 is of suhstantial and tubular form, and has a lower end of such diameter as to slip into the bore of the body7 5, and is provided with a plurality of slot entering pins 1l, disposed so as to register with the respective open ends of the slots 8 in the joint 5. The upper end of the setting tool body 1.0,.whieh will hereinafter be Ireferred to as the mandrel, is internally threaded to receive the lower end of a string of tool sections lf2, the upper ends of which are adapted to be received by any suitable elevator E, whereby the r tool and the string; of lining 3 can be lowered in progressive steps into the w ell casing -2 to the desired position, such as is indicated in Figure 2.
After the liner has been set by the tool, the joint connection between the tool and the liner is readily disconnected by the slight lowering of the tool string and the mandrel l0 so as to disengage the bayonet pins 'from the upper ends of the slot portions 8b t'o bring the pins opposite to the transverse slot portions 8al and then, hy an upward pulling movement of the tool, the bayonet Dine run freely ont of the slots 8 and thev disconnection is completed. Tfn some operations it may happen that there vwill be a torque inthe tool string, and it may happen that, without the knowledge of the vdriller, the bayonet pins may drop from the upper end of the bayonet slots 8b, and in such case, because ott the torque in the tool line, the bayonet pins would be thrown. out into the cross slots 8, and then,
should the tool string be pulled for any canse, the parte would be unintentionally disconnected. To prevent such as accident, which might result in the loss of the entire well and ali oi the labor expended, we pro-` vide a tool joint having the bayonet slots 8b with portions erdended down below the cross slots 8'". This downward extension ot' the bayonet slots, thereire, serves to pre vent the dropping bayonet pins from swing# ing into the ores-s slots 8" until the bayonet pins have been intentionallydowered to the bottoms of the bayonet slots 8"7 and then intentional torqne applied tothe tool string followed by elevatingu et the tool string will result in the l'iayonet pins being pulled intothel cross and thence ont et' the slots 8 when it is desired to make a disconneetioni l After the well liner has been lowered into the casing, as is shown in Figure 2, then the disconnection is made and the setting; tool is pulled from the well, leaving the joint hotly 5 :.lttached to the upper end of the liner, l
When conditions are involved in which the liner will not readily pass into the well because of the presence ot' formation sand or mud, it is then necessary to introduce into the liner a means for discharging circulating, liquid ahead of the liner end so as to wash. away 'the inipcding.;l formation material. Usually, the lower ends of the liners 3 are provided with slices l5, and the slices are provided with 4ittingfs known as guides, ono ot which is shown at lG, and this'has,A a een trai, circulating opening 16,
1When the liner is heine; lowered, a water pipe P is adapte/l to be lowered along with the liner, and the lower end of the 'water pipe has a nozzle N applied to and resting on the Iguide 6, and registering with the circulation hole 16 so that circulating water or liquid may be forced down through the water pipe P and thence into the im peeling sand, which latter will be washed away and carried up inside of the casing and outside of the liner, thus clearing the way for the liner to be lowered downf llihen washing in a. liner, as just described, the. wash pipe P is run down into the liner through the hollow setting tool mandrel l0, and preferably the watertight lioint is made between the water pipe and the mandrel, and this is accomplished by a, packing gland i8, in which may be cem- 'pressefh against the pipe l", packing material 19, and also against the lower threaded end of the mandrel to which the packing gland 18 is secured.
lit is also desired to provide a waientight joint between the tool body or'portion 5 and the mandrel l0, to prevent leakage of the circulating; water upwardly between the mandrel and the joint body 5. For that purpose, there is around the lower end of the mandrel a packing hand 20, one end of which is engaged hy al packingr compression ring 2l. The lower eud of the setting; tool body or mandrel l!) is shown as turned down at l()a to form a seat for the packing: band 20, which is adapted to ,be expanded by compression under the ring: 21. outward ly against the smooth, cylindrical face o" of the joint bod 5, provided mediatcly of the ends of the gody The exterior face of the joint body 5 is provided with Alongitudinal circulation channels 5 to permit the readyupward iow of the circulating'liquid within the casing 2 and outside of the liner 3.
rom the abo-ve it will l1, seen that we lIIU have provided an extremelysiinple, practicable, substantial andl readily operable means `for providing a readily disconnect-A ible joint between associated elements in a pipe and tool line, and further, have pro? yvided means for adapting the device to form a packing .means in cases where pressure liquid is forced down throu h the liner setting tool and joint. Furt er, it will be scentliat the improved joint forms a safety type of connection between combined means adapted to be lowered into a deep well, the joint providing for the re- I 4by the present invention, the danger of unscrewing parts of the apparatus above the' safety joint is substantially eliminated by reason of 'the'provision of the present bayonet slot joint structure which enables disconnection of jointed sections without tendency .to unscrew the usual threaded joints of the strings.
Further embodiments, ,modifications and variations: may be resorted to within the principle of the invention.
What isclaimed is:v
1. A combined setting tool and safety joint comprising a hollow tubular joint bodyvprovided with a recess extending downwardly upon the interior' surface thereof, a second recess formed upon the interior surface of said body communicating with the iirst re-` ces's and extending substantially horizontally of the body, recesses extending above and below the second recess and communicating' therewith, and a linin setter including a. mandrel provided witi a pin receivable in saidrecesses. 2. A combined setting tool and: safety joint comprising ahollow, tubular joint body provided with bayonet slots, and a lining setter including a mandrel provided `with bayonet pins adapted to interlock in the slots of the joint body, the bayonet slots each con sisting of an open end receiving slot having a transversepart i'iiergmg with oppositely extending slot portions which are 1n alignment, so that when thc bayonet pins of the v mandrel drop from the upper of said portions, they will tend to passiiito the lower of said portions and thereby be held against unintentional disconnection. 1
3. A combination setting tool and safety joint comprising a hollow, tubular joint body provided with bayonet slots. and a lining set- \tei' including a mandrel providedwith bay- .'oint comprising a hollbw,
Ahaving a reduced end on which onet pinsadapted to interlock in the slotsof the joint body, the joint body being provided with longitudinally extendlng, exterior circulation channels.
4. A combined settinfr tool and safety tubular joint dy provided with bayonet slots, a lining setter including a mandrel Lprovided wit bayonet pins adapted to interlock in the slots of the joint body,and means for forming a liquid-ti vht joint betwee'n the inserted mandrel and t e joint body. v '5. A combined setting tool and saffet joint comprisin a`hollow, tubular joint body provided with ayonet slots, a lining setter L including a mandrel provided with bayonet pins ada ted to interlock in the slots'of the joint bof. and means for forming a liquid- Git tiglitjoint Abetween the inserted'n'iandrel and i the joint body, thejoint body having 'a' smooth, cylindrical portion, and said means` includin a packing medium adapted to be expand against said pressed on t e mandrel. l
'6. A combined setting tool and' safety joint com )rising a hollow, tubular joint body provided with bayonet slots, a linin portion and com- .setter including a mandrel" provided wit bayonet pins vadapted to interlock in the slots of the joint body, and means for4 forming a liquid-tight joint between the inserted mandrel and the joint body, the joint body having 'a smooth, cylindrical portion below the said ba cnet slots, and said means includin a pac ng medium adapted to be expande against saidportion 'and compressed on the mandrel. 1 7. A ,combined setting `tool. andjoint comprising a hollow, tubular'f joint body provided with bayonet slots, a linin setter including a mandrel provided wit bayonet pins adapted to interlock in the slots of the joint-body, and means for forming a liquid-tight joint between the inserted ysafety 'mandrel and the joint body, the joint bod having a smooth, cylindrical portion, an said means including a packing inedium adapted to be expanded against said portion and compressed on the mandrel, the mandrel the packing means is arranged.
8.' A combined setting tooland safety joint comprising ahollow, tubular 'oint body provided with bayonet slots, and a lining setter includinga mandrel provided with bayonet pins adapted .to interlock 'in the slots of the joint body, the' mandrel being tubular and adapted to reyles` ceive a Water pipe, and means on the mandrel.
for making a leak-proof joint between the mandrel and an ,inserted walter pipe.
IIn testimonywhereof we have signed our names to this specilication. y
\ `E. P. BERNEY.
E. H. MCMAHAN.