US176274A - Improvement in methods of pumping oil-wells - Google Patents

Description

Patented Aprl18,1876.

D. C. BRAWLEY.

METHOD oF PUMPING on. WELLS.

'NITnD STATES 4PATENT IMPROVEMENT IN METHODSOF PUMPING OIL-WELLS.

Specificationformingpart of lLetters Patent No.;l76,274, dated April 18, 1876; application filed February. 1o, 1876. Y

' 0f Pnrlientewneliin, in .the eennby ofiBntlei end State nf Penney-lvanintbave invented e new andvuseful Improvement ,iny Method of Pnnnning Oil-Welle; end-.Ille rbeliebtZ fleelefe the following te -be. a fell, elean. andexnet de.- Serptien tberebf, .iefereneef beine' `had te the eeeenlnenyine drawing, fer-ming part of this Speeieatinn, in Wbieb.- Fienrelis ,e .Sideview 0f? ille ilevieee need by .me in carrying iontinyinventibn. Showing? l the. mede whereby they are anchored. end heldv in working positicgnl in ,-,the-Well., Fig.' 2 isfa;

front view, showing the mode whereby my devieee are loosened and. renie-ved, freiathe well, Fig. 3 vis a sectional view of the devices used for carryingeutwmy. invention, and Fig.`

4 is an enlarged sectional4 View of the work.` ingfbarrel, working-v,al\ *e,` and connections therewith. n Y v Like letters of reference indicate like parts in eaeln` 4 x 1- t Hitherte., in .the nnnlpine ,ef bilfwells, it` hasA been nsnal ,to extend eniien. tnbine te. er near the bottom of the welhhaving-a working,-bar-` relnttached tothe bottom of the tubing,{A A1 plnnger or working-valve Weeffihen extended', by -means of suckerrods to thebottom ofthe nibina and byA newer nnnlied.. from above, .Worked in said working-barrel., fereineithe oil through said tubing to the top of the-well. This method of pumpingoilewells was expensive, as it was necessary to have both thetubing and suckerrods.

By my improvementy enabled. to dispense with the lsucker-rods in the well, thus saving much4 time andlabor, as also the cost of Ithe sanne.

My invention .relates to devices for pumping oil and similar Wells.

To enable others skilled in the art to make and use my invention, I will describe its construction and .mode of operation.

In the drawing referred to a is the anchor at the bottom of the well, provided withjthe openings o1v pertbrations a for the passage of the oil from the oil-bearing rock. Above the i anchor o, and attached thereto, is the workythat the working-barrel is provided atthe top with the head and coupling d, throughvvhich ythe tube which takes the place ofthe suckerrod works. In the Working-barrel b is :the workin g or plunger valve e, which is attached to the sucker and conducting tube fin anyl suitable way. This tube f is au iron tube, from one-quarter inch to two.A inohesiu inside diameter, the diameter varying accord ing to the capacity of the well, and is con- -tinued to the, top of the well by extensible Aconnections of tubing in the usual way, and attached to. the Walking beam oftheA engine.

J ust abo-ve the connection with the workingf `valve o I make the openings on perforations 72 through which the oil passes from the,.work l ing-barrel into the tube; Just above-thel per- Aforatiorls in the tube f I place the checkfvalve k. Attached to the head d is thestuflingif-boxh, through which the tube f works, and which -islled with any suitable packing, l, secured and tightened therein by the follower m.` This follower m is provided with screwfthread, which wor-ks in corresponding screwfthread in Athe box h, and also with the arms m'- m. Rigi'dly attached to the tubing f is; the `11a-t jar-head1). On the stuffing-box h, aboveits connection with the head d, I screw the` ringv in, upon which the packing frrests. This. packing r is of rubber, leather, cork, or otlierpsub- "stance suitable for the purpose. Sliding on the stuffing-box h is the hollow double-cones, the cone s tapering upwardly, and the cone s2 downwardly. At the top of the conels1v areV the lugs or proiections s3. Attached to the hollow shoulder or yoke w, through which the tube f and jar-head p pass, are the reins c carrying the slips or wedges t, which slide upon the upper cone s1. In the slips t are the slots tf, in which the lugs s3, on cone s, work. The hollow shoulder or yokew is flattened, so that the jar-head p will pass through it when. in line therewith; but when given a quarter turn will form a jar therewith, either above or below the shoulder.

The method ot' securing and working my improved devices in the well is as follows: The devices are let down into the well in the position shown in Fig. 2, the wedges t and cone s being suspended on the jar-head p by the shoulder w, so that they will not bind in the well, and the whole apparatus being suspended and lowered on the working-tube f. When the anchor a strikes the bottom of` the Well, thejar-head p is turned in line with the shoulder 'w passing through it. The headp is then given one-quarter turn, and is dropped upon the shoulder w, forming a jar and forcing the slips or wedges t down upon the cone s1 until they strike the wall, when they, in turn, force the cone s2 into the packing r, and expand it against the wall, thus preventing the liquid from escaping outside of' the tube f. The friction of the wedges t upon the wall of' the well prevents the pressure ofl the packing from raising the cone. After the apparatus has been securely anchored in the well, the jarheadp is again turned in line with the shoulder or yoke w, and passing through allows the working-valve e to enter the working-barrel b.

By means of power applied from the walking-beam, through the conducting-tube j', the working or plunger valve e is operated in said working-barrel b, drawing the oil from the openings in the well or crevices in the rock through the anchor a, and standing valve c into the working-barrel. Upon further operation of the working-valve the oil is forced above the valve through the perf'orations i into the conductingtube f to the top of the well, whence it is carried by hose or other connection to the tank. The check-valve lc, placed just above the perf'orations z', carries the oil in the conducting-tube f, and prevents its weight from bearing on the working-valve e and stufng-box h. This valve k will not be in all cases necessary, as I find the apparatus works well without it. When the packing in the stungbox h becomes loose the flat jarhead p is lowered between the arms m of' the follower m, and being turned from above screws the follower into the box h, and thus tightens the packing.

When the apparatus is to be withdrawn from the well the jar-head is raised until it comes against the shoulder or yoke w. By jarring upon the shoulder w the wedges t are lifted from their position, and with them, by means of the lugs s3, the cone s, thus loosening the packing r and allowing the apparatus to be lifted to the top of' the well by the tubing fln some cases, where a smooth wall cannot be found at the bottom of' the well, it will be necessary to lengthen the connection between the working barrel b and coupling-head d, and also the conducting-tube f by means of tubing of the proper size.

I am aware that a hollow piston-rod, having the piston valves or plunger connected therewith, has been used in conjunction with a working'barrel or cylinder attached to the bottom of the well-casing or line of tubing, and do not herein claim such subject-matter but I am not aware that the'hollow piston and plunger have been so combined with a working-barrel or cylinder that the barrel could be lowered by means of' the piston-romand then anchored in the well by suitable devices, so as' to dispense with the expensive line of tubing or casing, which has heretofore been attached to the working-barrel, and by means of which the barrel has heretofore been lowered and retained in position and therefore What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a pump, for oil and similar wells,'the combination of' the Working-barrel and suitable devices, substantially as hereinafter described, for anchoring the barrel with the plunger or bucket, and the discharge-tube, connected to and adapted to reciprocate the plunger, substantially as and for the purpose specified.

2. The combination of the packing, the sliding cone, the jar, and suitable intermediate devices for transmitting the stroke of the iar, substantially as and for the purpose specified.

3. The combination of' the packing, the sliding double cone, and the wedges or slips for locking the cone, substantially as specified.

4. The combination of the jar-head p, rigidly attached to tubing f, shoulder or yoke w, reins fv, and wedges t, substantially as and for the purposes set forth.

5. The combination of' the tubing, the jarhead, the follower, and stufng-box, substantially as and for the purpose described.

In testimony whereof' I, the said DEWITT C. BRAWLEY, have hereunto set my hand.

DEWITT C. BRAWLEY.

Witnesses:

JAMES I. KAY, J. J. CAMPBELL.

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