US1751997A - Jar-rein socket - Google Patents

Description

March 25, 1930. F. .1. HINDERLITER JAR REIN SOCKET Fi led Oct. 19-, 1927 I l 1 1 I Ill n I I nn I Patented Mar. 25, 1930 v siren stares PATENT OFFICE JAB-BEEN SOCKET Application filed Gotooer 19, 1927.

My present invention relates in general to apparatus for removing broken mechanism from wells, and more particularly to a device for removing broken jar parts from a 5 well, which device I have termed a jar rein socket.

In the drilling of wells, the jar employed inconnectio'n with the dril ing tool is very often broken oil in the hole in the well. This usually results ina difficult fishing job, inasmuch as it is practically impossible to get a square or fiat-bottomed socket over the broken bails or reins of the jar part remaining in the well due to the fact that the reins are usually rough and lie to one side of the well or hole.

Now I propose to provide a fishing tool comprising a socket and a guide bowl adapted to embrace the broken reinsof the jar part remaining in the well sufficiently tight to enable this jar part tobe removed or fished from the well.

An object of the present invention is to provide an improved fishin tool adapted to be used to remove a broken jar from a Well being drilled.

Another object of my invention is to provide a jar rein socket including means for gripping the reins and a guide tube adapted to align the reins with the jar and adapted to keep the ends or reins of the broken jar from expanding during the pulling operation. 7

A further object of the present invention is to provide a jar rein socket including a guide tube having an eccentric point adapted to slide with facility between the casing wall and the broken reins even when the reins are lying over in the side of the casing, whereby the reins may be aligned with tacility with the gripping means of the socket.

Other objects and advantages of my invention will more -fully appear from the following detailed description taken in connection with the accompanying drawing, which illustrates a single embodiment thereof and in which Figure 1 is a fragmentary vertical sectional view taken through a well casing showing my novel socket in a position ready to grip Serial No. 227,197.

the reins of a broken jar, the socket and ar being shown partly in section;

Figure 2 is a sectional view similar to Figure 1 showing the socket device in engagement with the reins of the broken ar;

Figure 3 is an enlarged fragmentary sectional view of the socket of my invention;

Figure 4 is an elevation of my novel socket showing the wedges or slips in their uppermost position, the guide tube being shown in section;

Figure 5 is a cross-sectional view taken on substantially the line V-V of Figure l looking upwardly; and

Figure 6 is an end view of the device taken on substantially the line VT-VI of Figure l looking upwardly.

In the drawings:

Like reference characters designate similar parts throughout the several views.

The reference character 10 designates generally the body of my device, which is preferably made of cylindrical rod. The body 10 has formed integral with it a tapered threaded portion 11 adapted to be threaded in the lower end of a suitable tube or rod 12 used to lower the device into the well casing 13. The body 10 includes a reduced portion 1-1 defining the shoulder for receiving the upper end of a guide tube 15, which is suitably anchored to the body 10. The tube 15 is disposed concentric with the reduced body portion 14. The lower end of the tube 15 is cut on a slant, as indicated at 16, so as to provide the tube with an eccentric point 17, the purpose of which will be more fully explained hereinafter. The body 10 is provided with a downwardly extending element 18 disposed in the guide tube 15. This element 18 comprises a relatively flat piece of metal depending from and termed integral with the body. As best shown in Figures 5 and 6, the element 18 has oppositely disposed concave surfaces 19. These concave surfaces, as will more fully appear hereinafter, are adapted to accommodate the reins 2020 of the broken jar part 21 disposed in the lower part of the casing 18. The jar part 21 comprises an element of a standard jar, such as is well known in the well drilling art. The lower end of the element 18 is provided with a chisel-like edge 22, which is best shown in Figures 3 and 4. This edge 22 is adapted to engage in the crotch between the reins 20 of the part 21. p

The member 18 has formed in it two pairs of wedge- shaped slots 23 and 24 disposed near its lower end. The slots 24 are staggered relative to each other, as is evident from Figure 3, whereas the slots 23 are disposed diametrically opposite each other. Disposed in the slots 24 are slidable slips or wedges 25, and disposed in each of the slots 23 is a slidable slip 26. Each of these slips 25 and 26 is provided with atoothed surface 27 (Figure 5), as is evident from the drawing. Each of the slots 24-24, as well as each of the slots 2323, is of a dovetail shape, as is clearly shown in Figure 5. Each of the wedges is shaped to fit in the associated slot and in reality comprises a dovetail tongue. The slips are slidable in their respective slots and are prevented from falling out of the slots by means of transverse pins 28 secured in the element 18. Each pin 28 extends transversely across the lower end'oi" the associated slot, as is evident from Figure 3.

The operation of my novel fishingtool or socket is briefly as follows: i

The first thing that is done afterthe breaking of the jar is .to lower the socket of my invention into the well or casing. This socket may be connected to any suitable string of pipe or rod through the means of the threaded portion. 11 for the purpose of enabling thedevice to be lowered into the well. Upon the point 17 of the guide tube 15 coming into the zone of the reins 20 of the broken jar 21, the tube will align the reins with the element 18. Moreover, should the jar reins be in a tilted position, the point of the guide tube will force it back into a vertical position. Thereafter the chisel end 22 of the element 18 forces its way into the space between the reins 20 and its downward motion is are rested by it striking the portion of the jar defining the crotch between the tworeins. Of

course, it will be understood that during this downward movement of the element 18, the 1 slips 25 are caused to ride upwardly in their I respective slots.

N ow upon novel device being raised,

the slips will slide down thetapered slip slots or seats. and will be wedged betweenthe inner sides of the reins'and. the element 18..

The guide tube 15 willkeep the ends ofth-e reins of the broken jar'from expanding dirr- 7 ing the pulling or elevating operation.

I desireit understood that although I have illustrated and described in detail thepreferred form of my invention, the invention is not to be thus limited, but only so far as ed claims;

defined by the scope and spirit of the append- I claim as my invention: 1. In combination, in a fishing tool of the class described, a body member, a down-- wardly extending element connected to said body member, said element having concave sides shaped to receive the reins of a broken jar in a well, gripping means carried by said element for engaging said reins, whereby the broken jar may be elevated from the well, and a guide tube disposed over said element and connected to said member adapted to fit over said reins and to align them with the concave shank having its sides provided with channels to receive said reins, and wedge means 7 connected to said shank for engaging the reins when they are in said channels to wedge the reins against the wall of said tubular portion.

3. In combination in a fishing tool for removing an element from a well having spaced reins, a body, a shank connected to and dependmg from said body including a spear portion for spreading the reins apart, said 9 shank having its sides provided with channels to receive said reins, and means connectedto said shank for wedgingly engaging said reins to enable the element to be thereafter removed from the well'with said tool.

In testimony whereof, Ihave hereunto sub- 7 scribed my name at Tulsa, county of Tulsa, Oklahoma.

' FRANK J. HINDERLITER.

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