US404397A - Device for ejecting oil from oil-wells - Google Patents

Description

(No Model.) 3 Sheets-Sheet '1.. W. GEISER. DEVICE FOR EJEGTING OIL FROM OIL WELLS.

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. Patented June 4, 1889.

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(No Model.) I

' W'. GEISER.

DEVICE FOR EJEOTING OIL FROM OIL WELLS.

No. 404,397. Patented June 4, 1889.

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W. GEISER.

DEVICE FOR BJEGTING OIL EEOM OIL WELLS. No. 404,397. I Patented June 4, 1889;

UNITED STATES PATENT OFF-ICE.

WVILLIAM GEISER, OF SALINA, PENNSYLVANIA.

DEVICE FOR EJECTING OIL FROM OIL-WELLS.

SPECIFICATION forming part Of Letters Patent NO. 404,397, dated J' 11116 4, 1889.

Application filed November 1, 1888. Serial No. 289,709. (No model.)

T0 to whom it may concern.-

Be it known that I, ILLIAM GEISER, a citizen of the United States, residing at Salina, in the county of Venango and State of Pennsylvania, have invented a new and useful Device for Ejccting the Oil out of Oil-Wells, of which the following is a specification.

My invention relates to improvements in devices for ejecting the oil out of oil-wells by means of a gas-jet, and the objects of my improvements are, first, to prevent any escape from the well of gas produced above the oilrock; second, to protect the oil-producin g rock from the pressure of the confined gas, and, third, to protect the oil-producing rock from any pressure of gas or oil within the oil-tubing, but leave at all times a free exit for gas produced in the oil-rock. I attain these objects, as shown in the accompanying drawings, in which Figure 1, Sheet 1, shows the device complete, being in part elevation and part a Vertical section. Figs. 2, 3, and 4, Sheet 2, show in detail the construct-ion of the casing-head to prevent the escape of gas from the well eX- ceptby way of the oil-tubing. Figs. 5, 6, 7, and 8 show in detail the construction of the packer to protect the oil-producing rock from the pressure of the confined gas. vertical section of a valve-cage inclosing a valve to protect the oil-producing rock from any pressure within the tubing. Fig. 10 is a vertical section of a so-called ejector. Fig. 11 is a top view of the ejector. Fig. 12, Sheet 3, is a modification ,of the device shown in Fig. 1, Sheet 1.

Similar letters refer to similar throughout the several views.

The tubing A A? A with the T D, is the same as commonly used in oil-wells, through which the oil flows or is pumped to the surface. The section A extends from the oilrock upward, and is.connected at its upper end bya coupling to the ejectorB. To the upper end of ejector B is connected by a coupling a like tube A, having its upper end connected by a reducer to the sleeve C, which carries the packer C. Projectingthrough the packer G into the metal sleeve C is a third tube A which continues upward and out at the top of the well, where it is connected by parts Fig. 9 is a the pipe A with a receptacle for the oil. This furnishesacontinuous passage for the oil, unobstructed except by the valve h,which opens upward, and therefore does not prevent the passage of oil. TheT D is placed in the tube A to admit the oil, the lower end of the said tube being closed by resting upon the bottom of the well.

The metal pipe E (called casing) is put into the well and extends down, as usual,to a point below salt-water, but terminates above the gas-producingrock.

E is the body of the casing-head, having a recess 8 to receive the projection e on the cover E Between these surfaces is placed some compressible material, and the cover is then bolted to the body of the casing-head by the bolts e Placing the packing material in arecess, as shown,is preferable, as it prevents any possibility of its being blown out if exposed to a very high pressure. Through the cover E is a hole 6 for the tube A to pass through, and also a smaller hole a for the pipe F to pass through.- These holes for a short distance from the inside of the cover are just large enough to pass the said tube and pipe through easily, beyond which they are enlarged, forming chambers for material to pack around said tube and pipe. The material is compressed in the chambers by the glands or followers 6 e, which are drawn into the chambers by turning the nuts 6 e on their studs. The whole forms two stuffingboxes of common construction, and will effectually prevent the escape of any gas through the casing-head along the tube and p The packer C is placed below the gas-producing rock, between it and the oil-producing rock. It may be made of rubber or any suitable material, and is supported upon the flange c of the metal sleeve (1. This flange is circular and is eccentric to the sleeve 0, and has a hole 0 for the pipe F to pass through, and has also the packer O and the metal plate c ,a top view of which is shown in Fig. 8.

In lowering the tubing A A A into the well the packeris carried on the coupling a, which is screwed onto the end of the tube A and passes down with the tubing until it is brought to rest by the tube A coming into contact with the bottom of the well; but the tube A still continues to pass down until the coupling a rests upon the metal plate 0 and the packer O has been su fliciently compressed to support the weight of the tube A The weight of the tube A is great enough to compress the packer longitudinally and cause it to spread until it entirely fills the space in the well around the tube A and pipe 11. This confines the gas to the space above the packer and protects the oil-rock from the pressure of the accumulated gas.

f is an opening in the side of the casing head through which the gas is conveyed from inside the casing through the pipes F F F to the pipe 13, thence down into the ejector B, from which it escapes upward through the small hole g into the tube Aabove the checkvalve 71 The current of gas as it passes up the tubing expels the air, creating a partialvaeuum, which will be immediately filled by the oil from below until it rises above the ejector l3 and comes in contact with the escapiug gas, which will carry it along up the tubing through the pipe A into the receptacle provided for it. This operation may 0011- tinue until the accumulation of oil is exhausted or the gas-pressure too much reduced. Then the valve G is closed to prevent further escape of the gas until the gage II indicates the required pressure, when the operation may be repeated.

Should the accumulation of oil be too slow and the gage H show a dangerous pressure, the valve G may be opened until the surplus escapes as it accumulates into the tubing A A A or a pipe I may be screwed into the easin g-head, through which it may be conveyed into the casing of another well provided with this device, there to be used to blow out the oil, as :in this.

Fig. 9 is a vertical section of a cage inclosing a valve h. This cage is provided with a thread It below the openings 1', which screws into the thread g in the lower end of the ejector B. Any pressure of gas or oil from the oil-producing rock will raise the valve h from its seat and escape through the openings 4 into the ejector B, thence up the tubing A A A while any pressure from above will be prevented from passing down into the oil-rock.

J is a check-valve to prevent a flow of; oil through pipes F F F into the casing E should the oil rise in the tubing A A A to a higher level.

In case of a well which produces no gas above the oil-rock a supply of may be brought from some other source through the pipe F", in which case the pipes 1 F would be dispensed with, and the packer C, also the tight casing-head, would also be unnecessary. This modification of the device is shown in Fig. 12, Sheet 3; but in case of a well producing a small quantity of gas above the oil-rock, but not in sullicient quantity, the pipes F 1. would still be necessary, and when using gas from the casing E the valve G should be closed, and when using gas from pipe F4 the valve G should be closed.

I am aware that prior to my invention gas has been conveyed down into oil wells tlnrough a pipe and allowed to escape upward to blow out the oil. I therefore do not claim such a device, broadly; but

\Vhat I do claim as my invention, and desire to secure by Letters Patent, is

1. The combination, substantially as set forth, of the oil-tubing A A A with the pipe F, located outside of the oil-tubin g, the ejector l3, and cheek-valve J 2. The combination, substantially as set forth, of a pipe 1. check-valve I, ejector l-l, check-valve 7L, oil-tubing A A A'-, paclmr U 0' l and casing-head E E \VILLIAM (l El b 111R. lVitnesses:

E. F. SPAUL'DING, P. H. Joni).

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