US525728A - Pump forioll-wells - Google Patents

Description

(No Model.)

S. C. TURNER. PUMP POR OIL WELLS.

Patented Sept. 11, 1894.

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UNITED lSTATES sHoUBEL o. TURNER, 'or @clin-DALE, PENNSYLVANIA..

PUMPFoBOlL-WELLS. 1 A

srncrircArIoN refining partqffistrs Pttntnoasasges, dates Septante: i 1, 1894-.

Appnqaaon ned naar as, 189i. searing 505,511. '(Nolmqteri TortZZ whom it may concern: V i

Be it known that I, SHOUBEL C. TURNER, al, citizen of the United States, residngata'k?,l dale,in the county of Allegheny and State of@ Pennsylvania, have invented or discovered'al; new and useful Improvement in Pumps for Oil-Vells, of which the vfollowingis affulh; clear, and exact description, reference being' had to the accompanying drawings, forming? part of this specification; in Which- L 1 `Figure 1, is a vertical section through the? casing of awell'illustrating my. improved? pump in position and ready to operate.` Figi 2, is a similar view, on an enlarged scale; showing more particularly in detail -theconstruction of the pump, manner of securing it in position, Alocation of the valves, &c. FigaI 3, is a cross sectionalview taken on the lineg .III III of Fig. 2. VFig. 4, is a detail view, ing lllustration of the outside of the upper endofjl the plunger packingcase. Fig. 5,is 'a cross?` sectinalview taken on theline V V of.fFig.,2. Fig. 6, is a sectional view of the lower plungeri Similar numerals of reference refer to like: parts wherever used throughout this4 specification. f

M-y invention relates to au improvementin; pumpsf for deep wells, particularly oil.wells, and it has for its object `the construction of; such a pump so that it may be4 insertedinai string of tubing at any predetermined height from the bottom and operated, and withdrawn# if desired, without the removal of thetubingj In the construction of pumps for asimilar. purpose heretofore, the practice has been to insert in the line of tubing a section of pipe known as 'a working barrel in which are located and operated the standing valve and the plunger valve, necessary for the -operation of the pump, in addition to theV usual standing valve at the bottom of the tubing. Such a construction, while giving satisfactory results when in perfect working order, is apt to become inefficient from the wearing of the packing, and when this is the case, the entire string of tubing must be withdrawn from the well, in order to get at the working barrel for purposes of repacking or repair, and again lowered into position, entailing much loss of time, cost and trouble. My improvement is designed to obviate these dicultes, and to :cheap to construct, ,not :liable to get outof order, andwhich shallzbe capable of being inserted and withdrawn from` the well ,with- `proxv'rid'ef'a pumpfwhichi shallk be easy and i Iout disturbing'the tubing; In practice I have hollow plunger :supplied with working valves: Vat both ends, iuclosed in a packing chamber `'designed to `fit closely into and be tightly embraced by-a special coupling located at a. conveuientlevel in the well for eiective operation, preferably a short distance above the.y

oil bearingsand. 1 l w At the lower end of the tubing 2 is remov- -ably located in the'usual 'manner the double :standinggvalve `3, Vinserted within theshell 4,

`the-perforated piece ofgtubing 5, into the oil .bearingi'sand Gis the l`specialcoupling located at a distance above the standing valve constituting a coupling; below which extends l fora distanceof fromten to twenty-tive feet -jslightly` greater than the lengthot the..

plfungelgso that, as shown in Fig. l, there will bie a. short space `7-between the lower working valvejandthe .top offthe'standing valve. 8 is the. headfof the packing-chamber, consisting of the hollow cylindrical shell 9, snugly fitting around lthe plunger andbeing tapped in to the upper head piece 10 provided with the shoul- `dergllysemewhat larger', than the reduced annular opening through Jthe special coupling 6, therebypreventing thenhead from `passing. down through and maintaining it in a fixed position. `It will be observed that the annular opening through the coupling 6 is considerably less than the internal diameter of the tubing, and inasmuch as will be seen, the diameter of the packing chamber, with the exception of the head, is the same as the annular opening, the passage of the entire pumping apparatus in the process of lowering into position, will be free from impediment.

Attached to the lower extremity of the shell 9 is the packing chamber, consisting of the long cylindrical case l2, provided at the bottomwith a gland 13 screwed into the case 12 and closely embracing the hollow plunger. 14 is a spiral spring surrounding the plunger, bearing at its upper end against the bottom IOO ro ered into position in the well for operating,

the head 8 will maintain its position within the coupling 6 by reason of the shoulder 11- bearing against the top edge of the reduced annular opening through the coupling, and

15 the weight of fluid in the well for several hundred feet above will prevent the frictional action of the plunger from raising it. In order to increase this binding action I prefer to employ a series of leather rings 21 surroundzo ing the shell 9, as shown, and bearing against the interior of the annular opening in the coupling, thus tending to hold the head 8 i against dislodgment in the ordinary operation of the pump. When it is-desired to with- 25 draw the pump from the well the plunger is raised by the sucker rod 2O until the upper shoulder of the valve 18 strikes the gland 13, when the entirek packing chamber may be raised out of the well, leaving it free and unobstructed. Y It is obvious that the pump may as readily be again lowered into position, very little time being consumed in either operation.

The operation is as follows: When the hollow plunger commences to rise in the position 3 5 shown in Fig. 1, the upper and lower plungerV valves, will remain closed and the standing valve will open, allowing fluid to pass up through it into the tubing. above the valve, until the plunger has reached the limit of its stroke, when it will begin to descend, closing the standing valve, opening the working valves of the hollow plunger and allowing the fluid to iiow up through the hollow plunger and into the upper sections of the tubing, 45 through which it is successively raised, and

finally discharged through the repeated action of the plunger.

The advantages of myimproved pump will l be appreciated by those skilled in the art of f 5o operating oil wells. It obviates the necessity and desire to secure by Letters Patent,

ing, of an internal diameter less thant `contact against the coupling: a hollow i bearing against the upper neck of the ling: acylindrical casing screwed to the packing chamber extending downward `a considerable distance, and provided bottom with a gland, a packing sm- I Awithin the casing, agasket and spiral :1

ltension at the upper end for the suelte?` 4all substantially asshown and describellt my hand this 22d day of March, 1894.

of using working barrels, the disadvantlq of which I have already set forth. Thi; consider one of the principal features of W vantage over pumps heretofore used fol' purpose, and the substitution of my im'p pump, for the working barrel at p employed, will be appreciated by thoseV customed to its use. It is easy and cheapW construct, not'liable to get out of order, in practice has been found to give the 1 satisfactory results.

The use of the removable packing cham surrounding the hollow plunger, and in y y ing a spring bearing against a follower compressing the packing, I consider a y able'and novel feature of my invention, thereby secure a perfect; oil tight joint f plunger to work in.

Having described my invention and what manner it is constructed, what I The combination, with a string of tu of a. coupling joining two sections of the y ternal diameter of the tubing: ahollow drical shell within Y the coupling, Vpro with encircling Vleather rings for fric -i Y screwed to the upper end of the cylin shell and constituting an enlarged sho end of the cylindrical shell, constitu arranged to compress the packing, as and a hollow plunger,inclosed withint low head, shell, and downwardly ex packing chamber, provided with valves at each end, and with a threaded In testimony whereof I haveherenn SHOUBEL C. TURN Witnesses:

F. K. MCCANCE, C. M. CLARKE.

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