US 2450140 A
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Description (OCR text may contain errors)
Sept. 28,1948. J. B. HAWLEY, JR 2,450,140
OIL WELL BLOWING APPARATUS Filed Oct. 23, 1944 Z 4 1 m w A 3. 1V8 y; 7. F 3 5 5 42 g a .5 a l a ||LP 1l|| 4 nllll 3 1::
[700.2% 2302' Jan N ,5? Ha WLE rare Patented Sept. 1948 OIL WELL BLOWING APPARATUS John Blackstock Hawley, .n-., Minneapolis; Minn,
asslgnor to Northern Ordnance Incorporated, Minneapolis, Minn., a corporation of Minnesota I Application October 23, 1944; Serial No. 559,970
It is another object of the invention to pro--v vide an apparatus for blowing oil from an oil well by periodically blowing charges of oil through a discharge pipe and-regulating the quantity of oil discharged. By having means for regulating the quantity of oil discharged a number of wells can be connected and simultaneously blown by supplying the compressed air through a single main conduit which is connected by suitable conduits to the various wells.
It is still another object of the invention 'to provide an apparatus for blowing oil from an oil well providing a casingadjacent the oil supply having an inlet opening for oil from said oil-sup- Dly. a discharge pipe leading from said chamher, a vessel to which said discharge pipe .delivers oil, a delivery pipe leading from said vessel and, means for varying the position of said delivery pipe in said vessel to vary the amount of oil which can be discharged into said vessel.
These and other objects and advantages oi the invention will be fully set forth 'in the following description made in connection with the accompanying drawings in which like reference characters refer to similar parts throughout the several views and in which:
Fig. 1 is a verticalcentral section through the- Fig. 2 is a horizontal section taken substantially on line 2-2 of Fig. 1; and
- Fig. 3 a partial vertical section through the oil receiving member showing a modification.-
Referring to the drawings a portion of an oil bearing strata or sand'is shown at ID in which.
will be the cavity or well ll shown as having the casing 9 therein at its upper end, which casing willextend to the surface of the ground. An oil receiving member or reservoir I2 is provided which will be set into the earth at or adjacent the strata ill, the upper portion of member l2 being disposed in the well It so as to be surrounded by the body of oil 13 which accumulates from the strata l0. While member l2 could be made in various forms, in the embodiment of the invention illustrated it is shown as a substantially cylin- Y drical tank having a lower portion I 2a which portion 12b. Portion l2b has an opening l2c inthe side thereof adjacent its top from which a passage l2d leads upwardly and then downwardly 11 Claims. (Cl. 103-234) to a valve cage It held in place by or formed on a flanged lug l5 threaded into the lower end of portion l2b. A collar I8 is shown'above cage M having a valve seat at its lower side adapted to be engaged by a ball valve IS. A pipe l9 extends downwardly from plug i5 some distance into the. portion l2a. Portion no is centrally bored and threaded at its upper end to receive a pipe or conduit 20. At its lower end within portion I2b conduit 20 communicates with a chamber' l2e from which a passage l2i leads downwardly to the. bottom-oi portion I2b, thus communicating with the interior of portion [2a.
. Conduit 20.extends to the surface of the ground in whichthe well is located and is threaded into a connection member 22. 'Member 22 has a chamber 22a therein with which communicates. a pipe or.conduit 23 threaded into member 22. Pipe 23 will be connected to a source of compressed air or point adjacent the bottom of member l2. Pipe 23 extends upwardly througlr'member 22 and member 22 is provided with a packing recess at its top adapted to receive packing 21 which will be held in place by-a packing gland 28 adapted to be secured and moved by bolts not shown. Pipe is secured in the top of a vessel 30 and communicates with the interior thereof. While vessel 30 could be variously formed, in the embodiment of the invention illustrated it is shown as a tank of general cylindrical form, the same having a somewhat rounded bottom and a sump recess 30a at its bottom closed by a cover 3| which will preferably be removable. A discharge pipe 32 is disposed in vessel 30 and has anend portion 32a bent at an angle to its portion 32b, which latter is secured in a member 33. Member 33 has a cylindrical portion-disposed in a boss 30a of vessel 30, which portion is rotatable Y in said boss and member 33 has a flange engaged by a packing and sealing member 34 secured to the boss 30a in any suitable manner. Member 33 can be rotated by means of a handle 35 secured thereto. Another pipe 33a has one end threaded into member 33 and its other end threaded into one member 360 or a pipe union 36. Union 36 comprises anouter interiorly threaded member 33b into which'member 38a is threaded and a third member ltc h aving a flange disposed within the end flange or member 33b and contacting member No. A pipe 33b is threaded into member 38c and extends to a valvecasing 3L Valve casing 31 is provided with a valve seat 3111 adapted to be engaged by the upper end of a vertically movable valve 38 having a flange 38a at its lower end. A compression coiled spring 48 surrounds valve 38 and bears against flange 38a, the same bearing at its other end against the top 01' a chamber 31b and thus acting to hold valve 38 normally in open position. Valve casing '31 has a chamber 310 below flange 38a with which communicates a pipe 38 which is connected at its other end to member 22 and communicates with chamber 22a therein. The chamber 310 has an opening at its lower end communicating with a pet cock 4| secured in the lower end of casing 31. A pipe 42 is connected'to casing 31 and has a downwardly directed end adapted to discharge into an oil receiving reservoir 43 supported upon legs 43a resting upon the surface of the ground.
In operation pipe 23 will constitute an air line which will extend to a central control station. The apparatus will form part of a system controlling possibly 15 to 100 wells, each of which will be equipped with the apparatus shown. A pipe 23 will extend to each one of the wells and as stated, these pipes will be controlled from a central station. The oil I3 will accumulate in the chamber II and will pass through opening I2c into passage I2d through collar I-B, cake I4, member I and pipe I9 into tank or reservoir I2 and will accumulate in the bottom thereof as shown in Fig. 1 until such time as the oil is discharged. The handle 35 will be turned to bring the end of portion 32a. of pipe 32 to the desired position. It will'be seen that as member 33 is rotated pipe 32 will be rotated. In Fig. 1 pipe 32 is shown as having its portion 32a substantially horizontal. Portion 32a could extend upwardly as indicated in dotted lines and could also extend downwardly as also indicated in dotted lines in Fig. 1. When pipe portion 32a is horizontal as shown in Fig. 1, then oil can be discharged from vessel 30 above said pipe but a certain amount of oil will be retained in vessel 30 below saidpipe portion. it
will be seen that the portion of oil retained in vessel 30 can be varied by varying the position of pipe portion 32a. In one installation when the end of portion 32a is at its lowest-position one barrel of 011 could be discharged from vessel 30. When the end of portion 32:; is in the position shown in Fig. 1, a half barrel could be discharged. After a period when oil is accumulated in reservoir I2 the operator at the central station will turn air under pressure into pipe 23. While this pressure could be varied as desired, in practice a pressure used has been equal to the weight of the column of oil in pipe 25 plus 50 pounds. When air is thus turned into pipe 23 it passes through chamber 22a downwardly in pipe 20, through passage I2 I and air pressure is imposed on top of full barrel could bedischarged into vessel 30 or pipe portion 32a could be disposed so that less than one-half of a barrel could be discharged into vessel 30. The position to which pipe 32a is set will depend on the flow in the individual well. It will be seen that when air pressure is turned into pipe 23 it will pass from chamber 22a I 4 through pipe 33 into passage 31c and will force upwardly and close valve 38. This will close the discharge pipes 33b and 42 so that no oil can pass it to discharge and it can also discharge by a syphon action. The oil will flow out of vessel until it reaches the level at which the end of pin portion 32ais' set. The desired portion is thus discharged from the well and from vessel 30. Any sediment collecting in vessel 30 can be. removed by removing cover 3i and any sediment collecting in chamber 31c can be discharged by opening pet cock 4|. The U-shaped passage [2d .acts to form a sand trap to prevent the entry of sand into the member I2. The thread on portions I20 and I2b is made left handed so that portion I2b can be removed and when it is turned it will not loosen the threaded connection of pipes 20 and 25; When the device is assembled the tightening of parts I2a and I2b at their threaded connection will not loosen the threaded connection of pipes 20 and 25 but will tighten the same.
In Fig. 3 a modification is shown in which a valve casing 48 is provided and secured to the lower end of pipe 2-6. A plug 481s threaded on the lower end of pipe 26 and has a projecting flange at its lower end engaged by the upper end 'of casing 48. A connecting ring 47 is threaded on member 48 and has a flange at its top overlying the top of the flange on member 48; Casing 46 comprises a ca e in which is disposed a ball valve 48 adapted to seat against 'a valve seat at the upper end of an opening 46a extending-through the bottom of casing 49.
The structure shown in Fig. 3 is provided for low capacity wells. After the oil has been discharged upwardly through pipe 23 as above described and the air pressure is shut off from pipe 23 the column of oil in pipe 26 will act to close valve49 so that said column will not drain back into member l2. Said column of oil will thus only have to be lifted once.
From the above description it will be seen that I have provided a very simple and efficient apparatus for discharging a predetermined quantity of oil from a number of wells. The discharging operation can be easily and conveniently controlled from a central station as above described. Also as above stated, the'amount of oil discharged from each well canbe varied in accordance with the flow and productivity of said well. It is apparent that the device will have a high degree of utility for the purpose intended.
It will of course be understood that various changes may be made in the form, details, arrangement and proportions of the parts, without departing from the scope of applicant's invention, which generally stated, consists in a device capable of carrying out the objects above set forth in the parts and combinations of parts disclosed and defined in the appended claims.
What is claimed is:
1. An apparatus for blowing an oil well having in combination, a member adjacent the oil supply having a chamber therein and an inlet opening for the entry of oil from said supply into said chamber, means for closing said opening by pressure in said chamber, a discharge conduit for oil extending into said chamber, a pipe through which air under pressure can be periodically supplied to said chamber for actuating said means, a vessel into which said oil is delivered from said discharge conduit and means for varying the eii'ective capacity of said vessel to receive oil and thus to control the amount of oil which can be delivered to said vessel and thus the oil discharged from said chamber.
2. An apparatus for blowing an oil well having in combination, a member adjacent the oil supp y having a chamber therein and an inlet opening for the entry of oil from said supply into said chamber, means for closing said-opening by pres- 6 well including a discharge conduit a vessel to which said conduit is connected and towhich oil issupplied, an outlet conduit connected to said vessel having an inlet end in said vessel and means for varying the position of said inlet end'to determine the maximum amount of oil which can be discharged from said vessel and thus the amount of residual oil left in said vessel. said residual oil thus varying the receiving capacity of sure in said chamber, a discharge conduit for oil extending into said chamber, a pipe through which air under pressure can be periodically sup.- plied to said chamber for actuating said means, a vessel into which said 011 is delivered from said discharge conduit. a discharge means in said ves-. sel and means for varying the position of said discharge means for varying the amount of oil retained in said vessel and thus varying the receiving capacity of said vessel and the amount of oil that can be delivered to said vessel.
3. An apparatus for blowing an oil well havin j in combination, a member adjacent the oil supply having a chamber therein and an inlet open-- in: for the entry of oil into said chamber, means for forcing the oil out of said chamber by air under pressure. a vessel into which said 011 is discharged, a delivery pipe extending from said vessel, a valve in said delivery pipe constructed and arranged to be closed by air under pressure when the latter is supplied to said chamber whereby oil cannot be delivered from said vessel with said valve closed and means for varying the position of said delivery pipe in said vessel to retain difierent quantities of oil in said vessel.
4. An apparatus for blowing an oil well havin in combination, a member adjacent the oilsupply having a chamber therein and an inlet opening for the entryof oil into said chamber, means for closing said opening by pressure in said chamber, a conduit extending to adjacent the top of said chamber. a discharge conduit for oil extending to adjacent thebottom of said chamber, means for supplying air under pressure to said first mentioned conduit to force oil from said chamber through said discharge conduit, a vessel to which said discharge conduit is connected into which oil is discharged and means for varying the eifective capacity of said vessel to receive oil to thus control the amount of oil which can be delivered thereto and thus removed from said chamber and well.
5. An apparatus for blowing an oil well having in combination, a member adjacent the oil supply having a chamber therein and an inlet opensaid vessel and controlling the amount of oil discharged thereinto.
7. An apparatus for blowing an oil well having in combination, a vessel for containing 011, a pipe connected to said vessel, means for forcing oil from said well through said pipe into said vessel j having an inlet end whereby said end may be dising for the entry of oil into said chamber, a conduit extending to adjacent the top of said chamber, a discharge conduit for oil extending to adjacent the bottom of said chamber, a third conduit for supplying air under pressure connected to said first mentioned conduit, a vessel to which said discharge conduit is connected adapted to contain various residues of oil. an outlet from said vessel. a valve in said outlet. a fourth conduit connecting said third conduit and said outlet for operating said valve to close the same, said-valve being normally open. a
8. An apparatus for blowing an oil well having in combination, means for forcing oil from said posed at different levels in said vessel by said rotation of said discharge pipe to vary the maximum amount of oil which will be retained therein and thus to vary the effective receiving capacity of said vessel to thus control the amount of oil forced from said well.
8. The structure set forth in claim 7, a valve in said discharge pipe, said valve being normally open and means for closing said valve by air pressure when oil is forced into said vessel.
9. An apparatus for blowing an oil well having in combination, means for forcing oil from said well including a discharge conduit, a vessel to" conduit connected to said tank, a second conduit adapted to carry air under pressure and connected to said tank for forcing oil from said tank through said discharge conduit, a vessel to which said discharge conduit is connected and into which said oil is discharged, and means for varying the effective capacity of said vessel to receive oil for thus controlling the amount of oil discharged into said vessel and from said tank.
11. The structure set forth in claim 9, said means including a discharge pipe connected to said vessel. a passage connecting said second conduit and said discharge pipe, and a. valve in said discharge pipe arranged to be closed by pressure of air in said second conduit and passage to prevent discharge of oil from said vessel while oil is being discharged thereinto.
JOHN BLACKSTOCK HAWLEY, Ja.
REFERENCES crrnn The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 350,761 Neil Oct. 12, 1886 364,084 Boals May 31, 1887 919,416 Boulicault Apr. 27, 1909 964,693 Richardson July 19, 1910 1,210,988 Rosendahl Jan. 2, 1917 1,839,405
McCabe Jan. 5, 1932