US2269888A - Spool type tubing spider - Google Patents

Description

SPOOL TYPE TUBING SPIDER Filed June 13', 1939 2 Sheets-Sheet 1 \o 6 20 I9 v I r 65 I I I .5 i3

DUDLEY U. HARE 6PM GHQ/meg Jan; 13,1942. D; HARP 2,269,888

SPOOL TYPE TUBING'SPIDER Filed June 13, 1939 2 Sheets-Sheet 2 awe Yukon, DUDLEYC'. HARP lf/rormeg Patented Jan. 13, 1942 SPOTOL TYPE TUBING SPIDER Dudley C. Sharp-,- Houston, Tex., 'assignor to Mission Manufacturing Company, a corporation Application June 13, 1939, Serial No. 278,315

Claims.

The invention relates to a spool type of tubing spider to receive a set of slips whereby the tubing may be suspended in the well bore.

With devices of this sort they are usually utilized on the well head by placing the tubing spider on the well head in order to provide a bowl or support for the slips which are to grip the tubing. It is imperative that the tubing be withdrawn from and inserted into the well at the highest rate of speed possible because the well is out of production while it is being serviced. The slips must be accurately placed in order to support the tubing and the present invention therefore contemplates a spider which can be quickly positioned on the well head wherein the slips may be quickly inserted and removed from the bowl While insuring an accurate alignment and preventing their displacement.

It is one of the objects of the invention to provide a shiftable frame to support the slips relative to the tubing spider so that the slips may be moved into the bowl and lowered into position or removed from the bowl and moved out of position.

Another object of the invention is to provide a frame for slips which can be shifted relative to its support so as to move the slips out of the way while the tubing is being moved.

Another object of the invention is to provide a bracket support for a slip frame so that the slips can be moved laterally relative to the slip bowl while permitting some tilting movement of the slip frame.

Another object of the invention is to provide a slotted connection for retaining a slip frame in position so that the frame may be moved laterally during its use.

Another object of the invention is to provide a support for slip frames whereby the frames may be tilted in order to insert it and remove it from the bracket support.

Other and further objects of the invention will be readily apparent when the following description is considered in connection with the accompanying drawings wherein:

Fig. 1 is a top plan view looking down on the tubing spider and slip frame and illustrating the parts in position in the slip bowl.

Fig. 2 is a side elevation of the construction in Fig. 1.

Fig. 3 shows the slips and the slip frame as having been removed from the spider.

Fig. 4 shows the spider in open position about to be positioned on the well casing.

Fig. 5 is a broken detailed view of the pin and support for the slip frame.

Fig. 6 is a section through the frame and pivot connection for the slips.

The spider is indicated best in Fig. 4 and is made up of the halves 2 and 3, which are pivoted together by a pin 4 and arranged to be latched between interfitting lugs 5, one of which is on each of the halves. A pin 6 seen in Figs. 1 and 2 can then be passed through these lugs 5 in order to clamp the parts together. 7

Each section of the spider or slip bowl has a semi-circular opening 1 therein which acts as a bowl for the slip jaws In.

Fig. 3 shows four of these slip jaws which cooperate together in forming a substantially complete circle about a pipe or tubing which is to be supported.

Fig. 3 shows the frame l5 which serves to operate or manipulate the slips. This frame is made up of two similar arms [6, which are connected to a clevis or bar I! by thebolts l 8. These arms are curved so as to permit the positioning of the slip sections between them and terminate in the handles l9.

Two slip jaws or sections H! are pivoted to each of the arms l6, as best seen in Figs. 1, 3 and 6 wherein the arm l6 receives a projection 20 on the plate 22, to which the jaw sections ID are afiixed by means of a U-bolt 23 which passes downwardly through the upper ends of the slips and through the plate 22. In this manner each jaw is tiltable or movable to a limited extent with respect to the plate and the plate itself can pivot with respect to the arm so that the slips have a substantially universal movement with respect to the arms.

The clevis or bar I! is used as a connection between the slip frame and the spool or spider. As seen in Figs. 1, 2, 4. and 5 there is a bracket or support 25 affixed to the tubing spider and, as seen in Fig. 5, this support 25 is formed integral with the bolt or pivot pin 4 upon which the sections of the spool or spider are connected.

This support or bracket 25 is of peculiar construction as seen in side elevation in Figs. 2 and 5 in that it has an elongated slot 30 therein and the upper surface of the bracket is interrupted by an opening 3| which is intermediate the ends of the slot 30. The clevis or bar IT has a flattened or rounded central portion 33, which is seen in Fig. 5. It seems obvious that by tilting the frame including the arm Hi this central portion 33 may be passed into the opening 3| and into the slot 30.

The round portion 33 after it has moved into the slot 30 can have a sliding movement in the bracket 25 so as to allow the frame to move laterally of the axis of the bowl 1. In this manner if the handles l9 are grasped and pivoted upward the bar 33 will rock in the slot 30 so that when the slips are raised above the elevation of the spider than the entire assembly can be positioned either rearwardly or forwardly so that the slips will not drop back into the bowl of the spider. At the same time the slips may be moved apart by turning the handles on the bolts l8. When the slip; are to be replaced in the bowl it is only necessary to grasp the handles, move them together and either pull them forwardly or push them rearwardly in order to move the slips over the bowl. In this manner one operator can handle all four slip segments or jaws simultaneously. In event the frame and slips are to be removed the entire frame can be tilted upwardly and the bar 33 withdrawn from its support through the opening 3|.

What is claimed is:

1. A slip assembly for supporting pipe including a plurality of arcuate members forming a support spider, a set of slips therein, means on said spider to raise and lower said slips, and means to movably connect said last means to said spider including an elongated slot to allow for lateral displacement of the slips when raised having an opening at the top intermediate its ends to insert and remove said first means.

2. The combination of a slip bowl and slips including an operating frame including a pair of arms to move the slips into and out of said bowl, I

into and out of said bowl, and a releasable connection between said frame and bowl, said connection including means on the bowl to allow lateral movement of said frame and slips relative to said bowl while retaining a pivotal connection of said frame with said bowl.

4. A frame and bowl combination for pipe supporting slips including means on the frame to carry the slips, a connection between the frame and bowl including a portion having an elongated slot and an opening into the slot from the top side, a bar on said frame adapted to slip when tilted thru said opening into the slot so that said bar and frame may move laterally rela tive to the bowl.

5. A frame and bowl combination for pipe supporting slips including means on the frame to carry the slips, a connection between the frame and bowl including a portion having an elongated slot and an opening into the slot from the top side, a bar on said frame adapted to slip when tilted thru said opening into the slot so that said bar and frame may move laterally relative to the bowl and have limited tilting movement to raise and lower the slips.

6. A frame for slips including a pair of levers, a bar to which said levers are pivoted to swing toward and away from each other, a support to receive said frame including an arm having an opening therein to receive said bar, and an elongated area in said arm beyond said opening in which said bar is laterally slidable to move said frame.

7. A frame for slips including a pair of levers, a bar to which said levers are pivoted to swing toward and away from each other, a support to receive said frame including an arm having an opening therein to receive said bar, and an elongated area in said arm beyond said opening in which said bar is laterally slidable to move said frame, said bar including lugs to guide the bar in sliding in said arm.

8. In a spool type tubing spider having a slip bowl, and a slip and frame construction, said frame including a clevis and arms, means on said bowl to receive said frame, said clevis including a bar having an elliptical configuration in cross section, and a forked portion at each end of said bar to connect the arms of the frame thereto.

9. In a spool type spider a pair of members, a pivot pin to connect said members, a support arm on said pin, a slip frame, and means on said arm to slidably receive said slip frame for movement to and from said members.

10. In a spool type spider a pair of members, a pivot pin to connect said members, a support arm on said pin, a slip frame, and means slidable on said arm to receive said slip frame including an elongated slot having an opening in the top thereof.

DUDLEY C. SHARP.

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