US309214A - Samuel s - Google Patents

Description

(No Model.)

' S. S. FERTIG.

BJEGTOR.

Patented Dec. 16, 1884.

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SPECIEICATION forming part of Letters Patent No. 309,214, dated December 16, 1881i.

(No model.)

To all whom t may concern:

Be it known that I, SAMUEL S. FERTIG, a citizen of the United States, residing at Titusville, in the county of Crawford and State of Pennsylvania, have invented anew and Ini-y proved Auxiliary Ejector for Oil or Artesian NVells, of which the following is a specification.

Myinvention relates, principally,to iiowingoilwells or wells that are made to iiow by coniining the natural gas coming from the well, causing it to exert its pressure upon the sur face of the oil and raising it through the tubing to the surface. My object is to assist this natural flow by artificial means by inserting in the tubing of the well, at solne proper point between the gas-packing ring and the mouth of the well, an ejector, through which gas, steam, or compressed air shall beinjected into the tubing, assisting the gas in the well itselfiu raising the column of Huid. I accomplish this by the device illustrated in the accompanying drawings, in whieh- Figure lrepresents a broken vertical section of a well showing the well-mouth, the ejector, the gas-packing ring, and the bottom of the well. Fig. 2 represents the ejector drawn on a larger scale; Fig. 8, a horizontal section on line x a in Fig. 2, and Fig. 4 a bottoni view of the valve-ring in the ejector.

Similar letters in the several views refer to the saine parts.

Areprcsents the walls of the well; B, surface oi' ground; O, the bottom of thewell; D, gas bearing rock E, oilproducing rock. These may be, and frequently are, one and the same.

Fis the casing resting on the shoulder G in the walls of the well, forming there a tight joint, through which no fluid can escape.

His the tubing, extending from above the surface to the bottoni of the well. This is perforated at and near the bottom, as shown, to admit the oil.

I is the lead pipe from the tubing to the tanks.

K is the packing-ring placed round the tubing above the gas-bearing rock D, filling the space between the tubing and the wall A of the well, and preventing the escape of gas up and around the tubing.

So far as described the wellis drilled, tubed,

and packed in the ordinary manner for iiowing-wells. The gas,being confinedby the packing-ring K, exertsa pressure upon the surface 'of the oil around the tubing and forces it in through the perforations at thebottom and up to the surface. To assist this flow, Iplace in the tubing, at some point above the packingring K and below the well-1nouth, the ejector L, constructed as shown more clearly in Fig. 2. At the lower end of the ejector, where it is attached to the tubing, it is of the saine diameter as the tubing, but above that point is reduced or contracted, in a cone shape or reducer M, to one-half the diameter, or less, as required, the upper end of the cone being open into the upper part of the tubing H. Around this cone, at a proper point, is placed the shoulder' D, and on the shoulder the collar O, to which is attached the tubing I-I above. Between the cone M and the collar O is left a conicocylindrical space, and in this space is placed the ring P, fitted to play loosely up and down inside the collar O, and with its inner surface beveled to correspond with the outer surface of the cone M, and so that when it rests on the shoulder N it entirely fills the space between the cone M and the collar O.

Through the shoulder N are the holes or perforations R, of any desired size and nulnber, forming a duid-connection between the chamber outside the tubing and the inside7 except when closed by the ring l?, resting on the shoulder N, the ring P acting as a valve, and the shoulder N as the valveseat. Vhen the ring-valve P is raised by the pressure of luid from the outside, it leaves a space between theinside of the valve-ring and the cone M, through which the iiuid entering through the perforations It passes up into the tubing H. The ring-valve P is prevented from rising too far by Corning in contact with the lower end of the tubing H.

S is apipe entering the casing-head and into the chamber surrounding the tubing II above the gaspacking ring K.

The operation is as follows: rlhe well being tubed in the ordinary manner, and with the ejector L placed in the tubing at sonic point where desired between the gas-packing ring K and the niouth of the well, the well flows in the ordinary manner till the oil is raised in the tubing I-I above the ejector L, the valve-` IOO the Weight of the superineunibent fluid.

ring Pbeing held closed byits own weight and serted in the tubingvat some point above the If it is now desired to assist the natural iiow of the well, a current of steam, air, or gas isforced in through the pipe S to the chamber outside the tubing I-Imuntil the pressure is sufficient to overcome/the weight of the superincumbent luid upon the valve-ring I), when the valvering is raised and the compressed fluid flows upward around the cone M into the tubing H, acting as an ejector, assisting the flow of oil and carrying the oil from the point of the cone M to the mouth ofthe well. Whenever the pressure ceases or lessens through the pipe S, the valvering P closes of its own action. The fluid introduced through the pipe S may be steam from a boiler, air from a compressor, or natural gas from some contiguous well, as may be most convenient.

I make no claim for the broad principle of an ejector as a device for raising fluid from an Artesian well, as. that is an old device, although never, to my knowledge, having been applied to assist the natural forces.

What I do claim as myinvention is 1. In an oil or-Artesian well, an ejector ingas-packing ring and below the well-mouth, to supplement the natural forces of the well in ejecting the iiuid therefrom, substantially as described.

2. In an oil or Artesian well, the auxiliary ejector L,inserted in the tubing above the gaspacking ring K and below the Well-mouth, said ejector constructed with the cone M, shoulder N,with perforations R, collar O, and valve-ring I, all constructed and operating substantially as shown and described.

Vv3. The ejector L, inserted in the tubing of lan oil or Artesian well at some point between SAMUEL S. FERTIG.

Vitnesses:

M. W. QUICK, A. B. HOWLAND.

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