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Патент USA US2405697

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Aug. 13, 1946.
lll. G. HousToN ETAL
OIL WELL SAND PUMP
2,405,697 V
I
Filed Dec. 22, 1944
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Patented Aug. 13, 1946
2,405,697
UNITED STATES PATENT -OFFIC'E
.2,405,697
OIL WELL SAND PUMP
Howard G. Houston and John B. Humphrey,
Inglewood, Calif.
Application December 22, 1944, Serial No. 569,357
15 -Clalì-mé. (Cl. lr03-»204)
2
This invention relates in general to oil Well
pumps but more particularly to means coopera
tively mountedin a well with respect to> a con
ventional pump and Valves for controlling the
flow of oil from the well to the surface, and an
object is to provide means for introducing a
huid into the bottom or standing valve section
of the pump barrel for the purpose of iiushing
and washing the standing valve and its seat at
pump to which our improvements are applied for
use;
.
Fig. 2 is -a sectional elevation on an enlarged
scale showing a portion of a typical pump, top
plunger valve, and our improvements coopera
tively connected with the plunger and top valve;
Fig. 3 is a cross sectional View on line 3_3
of Fig. 2; and
Figs. 4 and 5 are, respectively, cross sectional
least once in each pumping operation, whereby 10 views on vlines fir-'ci and 5--5 of Fig. l.
accumulations of sand around the standing valve
Fig. 1 shows a casing C in which the usual
may be prevented and the pump may operate
pump barrel B is suspended and is attached at
continuously over long periods of time without
its lower end, as by means of a collar I to a
pulling and removing the standing valve, as is
usual perforated anchor pipe 2.
A plunger P
necessary by the use of prevailing methods and 15 is reciprocally mounted in barrel B and carries
apparatus.
a top valve T, while barrel B supports a stand
` It is well known in the oil industry that too
ing valve S. Valve S has an anchor ñXture '2a
frequent sanding up of the standing valve and,
formed of a split extension 3 having enlargements
pump barrel occurs in the operation of oil wells,
4 on its lower end which, when positioned prop
and such conditions require stoppage of pump v20 erly, underlie an annular portion of a fixture
ing operations while the barrel is completely
scavenged and cleared of the accumulated sand,
etc. Heretofore the barrel scavenging and clear
6 but are compressible so as to permit the re
moval of valve S and associa-ted yparts from the
barrel when necessary.
ing operations have been accomplished by first
Valve S is carried in a cage 'l and has a seat
withdrawing the standing valve and then intro 25 8 on the upper end of anchor 2. A Valve vlift rod
ducing, through the medium of an emergency
9 is usually ñxed vto the valve S (Fig. l) and has pipe, a solution to the pump barrel. 'Our Ipump,
a T head at its upper> end arranged to be gripped
however, is arranged for introducing a volume
by a suitable tool for the purpose of withdraw
ing the standing valve assembly from the well.
of water or other washing solution to the pump
barrel at points in the vicinity of the standing 30 Thus oil from a subterranean reservoir enters
pipe 2 through peripheral perforations 2b, and
valve on each down stroke of the plunger and,
upon each up-stroke of plunger P rises through
hence, at frequent and regularly -timed intervals
so as to prevent any undue accumulation of sand
a central passage of anchor 2a, valve seat 8 and
peripheral ports I0 in cage 1, and thence into
in the barrel. The wash solution is fed by suit
able means above the surface of the ground .35 the interior I I of barrel B. Cage l has a een
through the barrel and through the top plunger
vtral boss I2 in which the rocl`9 is threaded for
withdrawing the cage when necessary.
Valve, and our invention comprehends the pro
It will be noted that plunger P is 4of tubular
visions of means embodied in the pump barrel
form and the portion thereof below the top valve
and plunger for directing the iio-w of the solu
tion to desired points of usefulness and notwith 40 T is substantially extended downwardly in the
direction of the standing valve S.
standing the presence of certain necessary fea
Now, referring particularly to Fig. 2, we will
tures requisite for said purpose, to provide for
describe the connections between the ton kvalve
the ñow of oil into and from the pump, as .in
T and our wash fluid supply means. Plunger
well known oil well pumps.
45 P has an elongated skirt I3, formed of one or
Other and more detailed objects of our inven
more connected sections and Yhaving a clear in
tion will appear as the hereinafter following
ternal passage I4 extending therethrough for the
description of our improvements progresses.
flow of oil upwardly as the pump operates.
We have shown a preferred form of our ap- I
An uppermost section I3 of the plunger stem
paratus in the accompanying drawing, subject 50 may be, as shown, threadedly attached, as at I5,
to modification, within the scope of the appended
to a cage I6 arranged to support the topI valve
claims.
In said drawing:
Fig. l is a fragmentary sectional elevation of
an oil well,- showing a typical Well structure and 55
T, and an intermediate kValve seat Ymember 'Il
may' be conñned between the stem I3 and cage
I6 so as to alïord free opening and closing of
the Valve while it is held 'against displacement
2,405,697
3
4
We claim:
from its cage I6. The peripheries of stem I3 and
1. An oil well pump comprising: a barrel, a
plunger reciprocable therein, a valve on said
plunger for regulating the out flow of oil from
the well, and means for injecting a desanding
B must rise and flow through the control pas
fluid through said valve to points in the barrel
, sage I8 at the top of stem I3,` a passage I9 in
below said valve.
member I'I, and thence through radial passages 2i)
2. An oil well pump comprising: a barrel, a
in cage I6 into the barrel B when valve T is open
plunger reciprocable therein, a valve on said
to permit flow of oil, as on a downward stroke
of the plunger. It will be observed that valve 10 plunger for regulating the out flow of oil from
the well, and means for injecting a desanding
T is urged into closed position by a spring 2|
iiuid through said valve to points in the barrel
which is compressed between the valve and an
below said valve, said means including tubular
end portion 22 of a packing gland G which is
connections with said valve and a surface source
threaded into the upper end of cage IB. The body
portion 23 is of less diameter than the bore of 15 of fluid, and means for closing said connections
against the flow of a ñuid downwardly there
barrel B so that oil may flow around the gland.
through, except on an up-stroke of the plunger.
` Gland G is attached to the lower end of a hollow .
3. An oil well pump comprising: a casing, a
pump rod R, which is threaded at 24 into the
pump barrel suspended therein, a standing valve
gland and carries an internal abutment 25 with
at the bottom of the barrel, a plunger reciprocable
a central aperture 25, thereby affording com
in the barrel relative to the standing valve for
munication between the interior of the pump rod
cage I6 are of such diameters that they will oor
respondingly and slidably engage the bore of
barrel B. Thus, oil from the lower end of barrel
and a chamber 21 in the gland, a washing or
inducing a transfer of oil from the well to a
flushing fluid being introduced through the pump
position above the standing valve upon each up
stroke of the plunger, a valve carried by and oper
25 able upon each down-stroke of the plunger and
rod and gland to the lowermost areas of the bar
rel, in the manner hereinafter described. '
Valve T has an upwardly extended tube F and
said upper end which, when valve T is seated, as
closable on each up-stroke thereof for lifting
successive volumes of oil on alternate cycles oi
the pump, a pump rod for operatively support
ing the plunger, and means connected with the
pump rod and the plunger valve for introducing
a desanding fluid to the barrel through .the
plunger valve at each up-stroke of the plunger.
4. An oil wellpump comprising: a casing, a
in Fig. l, are closed by packing rings 3 I, but when
pump barrel suspended therein, a standing valve
a downwardly extended tube F’ coaxially con
nected therewith and a passage 2,8 therein which
affords communication between rod R and the
interior of plunger P and barrel B at times. Tube
F is closed, as at 29, at its upper end but has
peripheral perforations 3D formed slightly below
said valve is raised to open position, will be open 35 at the bottom of the barrel, a plunger recipro
cable in the barrel relative to the standing valve
so that ñuid may flow downwardly from rod R
for inducing a transfer of oil from the well to a
through tube F, valve T and tube F'. A washer
position above the standing valve upon each up
32 is provided above the packing rings 3| between
stroke of the plunger, a valve carried by and oper
which and abutment 25 a spring 33 is compressed
able upon each down-stroke thereof for lifting
for applying pressure to the packing rings.
.49 successive
volumes of oil on alternate cycles of
Thus, _it will be understood that a washing ñuid
the pump, a pump rod for operatively support
can flow downwardly into the pump `barrel only
ingthe plunger, and means connected with the
when valve T is raised from its seat for permit
pump rod and the plunger valve for introducing
ting the flow of oil upwardly around the valve.
a desanding iiuid to the barrel through the
Of course, it is obvious that valve T only opens on (
plunger valve at eachup-stroke of the plunger,
the down-stroke of plunger P-v-hence, the wash- `
said desanding means including a tubular connec
ing ñuid only ñows into the barrel at such times.
tion extended upwardly and downwardly from
The operation of the pump is conventional eX
and through the plunger valve and coaxially dis
cept as to the intermittently timed introduction
posed relative to the plunger.
"
of the washing iluid. For instance, on each down
5. An oil Well pump comprising: a casing, a
stroke of the plunger valve T is opened so as to
pumpbarrel suspended therein, a standing valve'
discharge ~oil from the space in the barrel be
at the bottom of the barrel, a plunger reciprocable
tween valves S and T, while on alternate up
in the barrel relative to the standing valve for in
strokes of the plunger the valve S will remain open
ducing a transfer of oil from the well to a posi
for recharging said space while valve T remains
tion above the standing valve upon each up-stroke
closed. As in other types of pumps, the plunger
of the plunger, a valve carried by and operable
can be readily withdrawn from the barrel and
upon each down-stroke thereof for lifting suc
access to and the removal of the standing valve
cessive volumes of oil on alternate cycles of the
S is readily effected by the application of a suit
pump, a pump rod for operatively supporting the
able tool to the head of the valve puller 3.
'
plunger, and means connected with the pump rod
It is obvious that liquid delivered from a source
and the plunger valve for introducing a desand
above the surface of the» ground through pump
rod R, gland b1 and valve T is prevented from
mingling with the oil output in barrel B above
valve T. However, all liquid introduced into the '
barrel below valve T is evacuated with the oil` by
the pump.
,
The essence of this invention is the provision of
means for permanent. application to an oil well
pump for iiushing and washing away the accumu
lation of sand, etc., from the pump barrel and
valves which tend to clog the operating parts, de
crease production, incur unnecessary delays in op
eration and extraordinary expense.
ing iiuid to the barrel through the plunger'valve
at each up-stroke of the plunger, said desanding
means including a tubular connection extended
upwardly and downwardly from and through the
plunger valve and coaxially disposed relative to
the plunger, and means intermediate the upper
extremity of said tubular connection for -prevent
ing the flow of a ñuid through' the plunger valve
except upon the down-stroke of the plunger.: . .
G. An oil well pump comprising: a barrelfa
plunger reciprocable therein, `a valve on said
plunger, a hollow pump rod, a packing gland 'con
neoting said Pump rod and said gland,v and a tube
2,405,697
5
6
.
extending through said valve for at times permit
ting the flow of a fluid through said rod, said
gland and said valve to the position of the barrel
below the valve, said tube having means at its
upper extremity for alternately opening and clos
ing the tube to the flow of a fluid delivered
through the pump rod as the plunger is recip-v
rocated.
7. An oil well pump comprising: a casing, a
pump barrel suspended therein, a plunger recip
control thereof for introducing a washing liquid
to the vicinity of the standing valve at regularly
timed intervals during the operation of the pump.
12. An oil well pump comprising: a casing, a
barrel suspended therein, a standing valve oper
atively supported at the lower end of the barrel
for regulating the flow of oil from the ‘well to
the barrel, a valve carried by the »plunger for
regulating the output of oil from the barrel and
10 means connected with said output valve and un
rocable in the barrel and having a valve for regu
der the control thereof for introducing a washing
lating the flow of oil through the plunger, a hol
low pump rod for operatively supporting the
liquid to the vicinity of the standingV valve at reg
ularly timed intervals during the operation of the
plunger, and means for affording direct com»
pump, said means including a passage through
munication between the pump rod and that part 15 said plunger valve through which a liquid from a
of the barrel below said valve on each alternate
source thereabove is delivered to a portion of the
stroke of the plunger for injecting a Washing
barrel adjacent to the standing valve.
liquid to the lower portion of the barrel.
13. An oil well pump comprising: a casing, a
8. An oil well pump comprising: a casing, a
barrel suspended therein., a standing valve oper
pump barrel suspended therein, a plunger recip 20 atively supported at the lower end of the barrel
rocable in the barrel and having a valve for regu
for regulating the flow of oil from the well to the
lating the flow of oil through the plunger, a hol
barrel, a valve carried by the plunger for regulat
low pump rod for operatively supporting the
ing the output of oil from the barrel and means
plunger, and means for affording direct com
connected with said output valve and under the
munication between the pump rod and that part 25 control thereof for introducing a washing liquid
of the barrel below said valve on each alternate
to the vicinity of the standing valve at regularly
stroke of theV plunger for injecting a washing
timed intervals during the operation of the pump,
liquid to the lower portion of the barrel, said
a hollow pump rod for supporting the plunger,
means including a passage through the plunger
said means leading from the interior of the pump
valve sealed against communication with' the out 30 rod to and through the plunger valve, and being
let of the barrel.
arranged to prevent communication of the de
9. An oil well pump comprising: a casing, a
pump barrel suspended therein, a plunger recipn
rocable in the barrel and having a valve for regu
lating the flow of oil through the plunger, a hol
low pump rod for operatively supporting the
plunger, and means for affording direct com
munication between the pump rod and that part
of the barrel below said valve on each alternate
livered liquid with the portion of the barrel above Y
the plunger valve.
14. An oil well pump comprising: a barrel, a
35 plunger reciprocable therein, valve means in said
barrel for controlling the output of the well, ahol
low rod for operatively supporting said plunger,
and means for introducing a iìuid from a source
of supply on the surface through the pump rod
stroke of the plunger for injecting a Washing 40 to the lower valved portion of the barrel at alter
liquid to the lower portion of the barrel, said
nate strokes of the plunger, said valve means in
liquid injecting means being under control of the
cluding a pair of spaced valves between which
plunger valve.
volumes of oil are held and exhausted upon each
10. An oil well pump comprising: a barrel, a`
downstroke of the plunger, the uppermost of said
plunger therein having a valve for regulating the 45 valves having a passage therethrough to permit '
output of the well, and means coaxial with Said
the iioW of a liquid from said pump rod through
valve and sealed against communication with the
the valve on each downstroke of the plunger.
output passage of the barrel for introducing a
15. An oil well pump comprising: a barrel, a
liquid through the valve to the lower portion of
plunger reciprocable therein, a valve on said
50 plunger for regulating the out flow of oil from the
the' barrel at alternate strokes of the plunger.
11. An oil well pump comprising: a casing, a
Well, and means for injecting a desanding fluid
barrel suspended therein, a standing valve oper
through said valve to points in the barrel below
atively supported at the lower end of the barrel
said valve, said means including a valve mech
for regulating the flow of oil from the well to the
anism to close the iiow of liuid during a part ci
barrel, a valve carried by the plunger for regulat 55 the travel cycle of the plunger.
ing the output of oil from the barrel and means
HOWARD G. HOUSTON.
connected with said output valve and under the
VJOHN B. HUMPHREY.
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