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Патент USA US2128074

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vAngus,1938.
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TEBRYAN
WELL
FLQWING
APPARATUS
'Filed April 2O',- 1956
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2,128,074l
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V v2 Sheets-Sheet l
Thomas E.' Bryan.
INVEI‘IITOR.
BY
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A ORÑEYS.
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Aug. 23, 1938.
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-|-_ E, BRYAN
2,128,074
WELL FLOWING APPARATUS
Filed April 20, 193e
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Thomas E. Bryan.
INVENTOR.
BY
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AÉOR'NEYS.
2,128,074
Patented lê/ug. r23, 1938
UNITED «STATES
PATENT OFFICE
2,128,074
WELL FLOWING APPARATUS
Thomas E. Bryan, Oklahoma City, Okla.
Application April 20, 1936, Serial No. 75,265
6 Claims. (Cl. 1053-232)
Thisinvention relates to valves for use in oil
y wells or the like, adapted to control the admission
of gas or air into a column of fluid within the well
so as to aerate the fluid and cause it to rise due
to its decreased density.
n
It has been the practice in recent times to force
' gas or air under pressure into a column of oil or
A other fluid within a wellso as to aerate the fluid
and ,make it possible for the natural pressure
existing at the bottom of the well to force the
lightened fluid from the top of the well. The ad
mission of this gas or air has been effected in the
past by providing the well with an outer casing
and an inner tubing, flowing the well through the
tubing or through the space between the tubing
and the casing, and forcing into the well through
the space that is not being used for flowing the
well a supply of gas or air under pressure.
Valve
means have been provided at various intervals in
20 the wall- of the tubing so as to admit the gas or air
from the tubing into the casing or vice versa.
- These have for the most part been controlled by
the relative pressures of the column of fluid stand
ing in the well and the pressure of the gas in
jected into the well.
More recently, certain types of valves have been
developed for controlling the admission of' gas or
air into a column of fluid, which valves are con
trolled by the velocity or by the flow- of fluid in an
In this type of valve, the valve
is normally opened to'permit gas to pass into the
fluid column when the fluid is not in motion.
However, as soon as the fluid begins to flow, the
velocity of the fluid is utilized to cause a closing
35 of the valve and thus to prevent the admission of
30 upward direction.
any more gas or air into the fluid column until
vthe flow stops.
i
It is an object of this invention to provide a
I40
valve of the latter type which is of greatly simpli
fled construction, as compared with valves of the
same general type heretofore used.
automatically seat in its proper position at all
times that there is no fluid flow.
With the above and other objects in view, this
invention contemplates a structure including -the
various partsand combinations illustrated in the 5
accompanying drawings and set forth in the fol
lowing description, it being understood, however,
that the accompanying drawings and the follow
ing description are by way of illustration and ex
ample only and are not tobe taken as in any way 10
limiting the object or scope of this invention.
Such limitation is to be only by the prior art and
by the terms of the appended claims. '
Referring now more particularly to the draw
ings inwhich like numerals indicate correspond
15
ing parts throughout:
Fig. 1 is a view in vertical cross section illus
trating the application of valves constructed in
accordance with this invention to an oil well or
20
the like.
Fig. 2 is a horizontal cross section through a
section of tubing _having one of these valves in
stalled therein, this section being taken along
the line 2-2 of Fig. 3.
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Fig. 3 is an enlarged view similar to a portion 25
of Fig. 1 but illustrating one of the valves partly
in section.
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Fig. 4 vis a greatly enlarged view illustrating
the details ofconstruction and operation: of one
of these valves.
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30
Fig. 5 is a view similar to Fig. 2 but illustrat
ing a slightly modiñed form of construction and
represents a section taken along the line 5-'-5
of Fig. 6.
‘
Fig. 6 is a view similar to Fig.y 3 but illustrating
the modification shown in Fig. 5 with the valve in
position to admit gas into the fluid column.
Fig. 7 is a view similar to Fig. 6 but showing
the valve in the position it occupies when the
fluid column within the well is in motion.
40
. Referring now more in detail to th'e form illus
It is a further object of this invention to pro- _, .trated in Figs. 1 to 4, inclusive, Fig.- l illustrates
vide a valve which will be positive in its opera
tion and which will be of such construction that
it will be impossible for itto become jammed or
stuck and continue to admit gas or air into the
fluid column after the fluid column has begun
to flow.
50
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Another object of this invention is to provide
the application ofthe valve in which a casing I
is lowered into the well hole through the forma
tion Z, and the tubing 3.is then placed within the 4'
casing I. At `spaced intervals, usually in the
neighborhood of 200 feet or so, there is inserted
into this tubing a section having a partition 4 se
cured therein in a transverse position by'any suit- _
able means such as by welding 5. This partition C.' C
a device which will perform the functions stated . is provided with an opening 6 therethrough hav
and will, in addition, serve as a check valve to ing a tapered substantially conical valve seat 'l`
prevent downward flow of the column of fluid.
One other object of this invention is to provide
65 such a structure with a check valve which will
adiacent `the upper face of the partition.
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At a point just above the partition and spaced
laterally with respect to the opening 6 is a hollow 55
2,128,074
2
shaft 8 extending transversely of the tubing and
through the tubing walls at its opposite ends.
This shaft is secured in position by means such
the space 3I through the hollow shaft 8 and into
the tubing 3.
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as welding 9. At spaced points on this shaft are
provided a pair of thrust collars I0 and Il, be
When the pressure in the formation falls to al
point'where it is insufficient to raise the column
of fluid within the space 30, the- valves I4 or. 26
tween which is positioned a valve sleeve I2 sur
will be moved by gravity, or by a. slight downward
rounding the shaft 8 and having a laterally ex
motion of the fluid into seating engagement with
tending arm I3 integral therewith. Secured to
the openings formed through the partitions 4 or
I9, These valves thus serve as check valves to
the underside of the arm I3 in such a position
10 as to seat against the valve seat 1 and close'the
opening 6 is a valve I4 having a tapered sub
stantially conical'seat portion I5.
The shaft 8v which communicates at its oppo
site end with the exterior of the tubing 3 is formed'
15 with an opening I6 in its upper side at a point
intermediate the thrust collars I0 and II.
Formed in the sleeve I2 is a corresponding open
ing I1 adapted to register with the opening I6_
when the valve member I4 is seated against the
This opening I1 is slightly elongated so
as to register at all times regardless of any slight
end-wise movement of the sleeve I2. In order to
insure against the valve member I4 being swung
upwardlyA to such a point that it would rest
25 against the wall of the tubing 3 and not fall back
into its seated position, there may be provided
20 seat 1.
any suitable stop or other means such as the
pin I8 which is shown as being positioned on top
of the arm I3. This pin as illustrated will stop
30 the swinging movement of the valve I4 in such
a position that the force of gravity will tend to
pull the valve back into its closed position.
In Figs. 5, 6 and '1 there is illustrated a slightly
modified form of construction. In this instance,
35. the partition 4 is replaced with a similar parti
' tion I9 which does not, however, include the sub
prevent downward motion of the fluid within the 10
tubing. When the valves I4 orl 26 are in closed
position, however, the openings Iii and I1, or I6
and 29, will come into register. It will then be
possible for the air or gas under pressure within
the space 3i to flow inwardly through the hollow 15
shaft 8 and through the openings I6 and I1 or
IB and 29 into the space 30 within the tubing.
The gas thus entering the tubing will be dispersed
into the fluid standing in the tubing, and will
serve to lighten this fluid because of its introduc
tion to such an extent that the pressure within
the well formation» will be suillcient to lift the
fluid column in its lightened condition. The well
will then begin to flow again, and’the valve I4
or 26 will be opened to shut off the flow of gas
until the well stops flowing.
'
It will be noted that in using a plurality of
these valves within a well, the static pressure of
the column of fluid within the space 30 is less
at the position of the uppermost valve and grad
ually increases until it is greatest at the position
of the lowermost valve. -This being the case,
the gas will ilrst be introduced into the tubing
-through the uppermost valve, and if this is insuf
?lcient to start the flow of fluid, the gas will be
introduced at the next lowest valve, and so on
stantially conical valve seat at the upper end of . down to the ,position of the lowest valve. Thus,
it is possible to aerate the entire column of fluid
its opening 2|. 'I'he opening 2| may be cylindri
above the lowest valve when this becomes neces
cal` or any other ysuitable shape throughout.
In this form also the sleeve I2 and arm I3 have sary to lighten the column sufllciently so that the
40
been replaced b_v an arm 22 which is bifurcated
pressure in the well formation will cause it to rise.
at its end-opposite the hollow shaft 8 to provide
From the foregoing it will be appreciated that
there has been provided by this invention an
extremely simple form of valve for getting air or
spaced ears 23 and 24 between which are posi
tioned a lug 25 carried by a substantially hemi
45 sphericai valve member 26. This lug 25 is piv- ‘
otally secured in place by mea-ns of a pin 21
passing through the ears 23 and 24. Because of.'Y
its hemìspherical formation, the valve 26 will
seat against and close the opening 2|. adjusting
50 itself automatically to any minor irregularities`
in the positioning of the opening 2|, or in the
gas pressure into a tubing to cause the flow of a
column of fluid therein. It will also be appreci
ated that the valve thus provided is governed
entirely by the flow of the fluid as distinguished
from the pressure of the fluid within the tubing
space 30. In addition to its function as a valve
for admitting or excluding air or gas under
swinging of the arm 22. A stop 28 or similar
means may be provided so that when the valve
is forced upwardiyby a flow of fluid as herein
55 before described. it will not be swung entirely
over to a position which will prevent it from
pressure to or from the tubing, the invention set
forth provides at each position of such a valve a
check valve for preventing the downward flow
of the column of fluid within the well. 'I'his
check valve is in each case positive in its action
seating when it is moved downwardly again. The
and capable of performing all of the functions
ordinarily performed by a check valve.
.Having described my invention, I claim:
arm 22 is provided with an opening 29 similar to
the opening I1 in the sleeve I2 and for the same
60
purpose.
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In operation, a plurality of valves are posi
tioned in a well in spaced relation as above set
forth. The tubing 3 is adapted to provide a
passage through its interior 38 for the flow of
65 fluid from the well. The space 3| between the
tubing and the casing I is adapted to receive air
or gas under pressure.
So long as the pressure
of the formation which is producing the fluid is
sufficient to cause it to flow through the tubing
70 3 to the surface of the ground without anyout
side assistance, the valves I4 or 26, as the case
may be, will be held open. Underbthese circum
stances, the openings I 8 and` I1 in the one form,
and I6 and 29 in the other form, will be out of
75 register so that there will be no flow of gas from
l. In combination with a well tubing having an
opening through a wall thereof to admit gas
under pressure thereto, a rotatable sleeve valve
for controlling said opening, and means connect
ed to said sleeve valve and located in the path
of a fluid passing through said tubing for rotating
said valve to close said opening upon upward
movement of such fluid and for rotating said
valve to open the same upon cessation of such
upward movement.
2. In combination with a well tubing, a parti
tion extending transversely of said tubing and
having an opening'therethrough, a hollow shaft
extending transversely of said tubing above said
partition and having its interior in communica
tion with the exterior of said tubing, an arm ’
2,193,074
3
on upward movement of a fluid in said tubing,
said hollow shaft having a lateral port therein,
rotatably mounted on said shaft, and valve
` means on said arm adapted to close said opening
in said partition and movable away from said
opening upon upward motion of a fluid through
said tubing, said hollow shaft having a lateral
opening therein, and said arm having a part
thereon movable to close said lateral opening
and means on said arm adapted to close said
port upon movement of said valve member from
when said valve means is moved away from the
upwardly facing shoulder, a hollow shaft above
said means having its interior in communication
with the exterior of said tubing, an arm rotata 10
bly mounted on said shaft, a valve member piv
otally mounted on said arm and having a por
tion adapted to cooperate with said shoulder to
close said tubing and movable from said shoulderv
on upward movement of a fluid in said tubing, 15
said hollow shaft having a lateral port therein,
and means on said arm adapted to close said port
upon movement of said valve member from said
said valve seat.
5. In combination with a well tubing, means
therein providing a restriction presenting an n
opening in said partition.
3. In combination with a well tubing, a parti
tion extending transversely o! said tubing and
having an opening therethrough, a hollow. shaft
extending transversely of said tubing above said
partition and having its interior in communica
tion with the exterior of said tubing, a sleeve
rotatably mounted on said shaft and having a
laterally extending arm thereon, and a valve
member on said arm swingable about said hollow
shaft ~to close or open the passage through said
shoulder.
20 partition, said hollow shaft and sleeve having _
6. In combination with a well tubing, means 20
openings therein adapted to register when said- therein providing a restriction presenting an
valve member is in position to close said passage` upwardly facing shoulder, a hollow shaft above
'through the partition and adapted to move out said means having its interior in communica
of register when said valve member is moved to tion with the exterior of said tubing, an arm
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open said passage.
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4. In combination with a well tubing, means
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rotatably mounted on said shaft. a valve mem
ber pivotally mounted on said arm and having a
therein providing a substantially conical valve
hemispherical portion adapted to cooperate with
seat, a hollow shaft above said means having its
interior in communication with the exterior of
30 said tubing, an arm rotatably mounted on said
shaft, a valve member rigidly mounted on said
arm and having a substantially conical'seating
said shoulder to close said tubing and movable
from said shoulder on upward movement of _a
portion adapted to cooperate with said valve seat
to close said tubing and movable from said seat
iluid in sai
tubing, said hollow shaft having 30
a lateral po t therein, and means on said arm
adapted to close said port upon movement of
said valve member from said shoulder.
THQMAS E. BRYAN.
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