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Патент USA US2136229

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Filed May 1e, 1233
kPatented Nov. 8, 1938
* 2,136,229
x '
George' Judsonßaldwin
George Wesley Addy,`
~ N
~ ,
Cayuga, Ontario, Canada'
y l
y ‘f
Applicaties May 16, isssg’se?i'al No, _203,321`
-5 claimed (c1. lofaèzaa) f
This> invention’relates _to improvements in the , y 'ing water from a gaswell the pressure of gas on ,
method of ‘ejecting- seep'age water/'from natural
the surface
water up
of the
thevvaterpipe in the
If the
ytends tolsforce
, gas wells `and 'an automa'ti'c'apparatus therefor.
1 Natural gas'wells,`notwithstanding all known
precautions such' as well casings, are usually en-k
croachedV by"a"_considerable quantity of water
which gradually seeps in fromcthe water bearingr
sand which is mostlyencountered above -the gas
sufilcient to force the water> to the surface of the
well when' pipe C is 'valvularly opened `at thewellï «5.
head, the water will surge‘beyond the level where
the weight> of column of waterin pipe C and pres'
sure forcing water up piper CA are equal and there
sand, untilr it rises t'othepoint where itI interferes 'after the water in’pipe C will recede and‘equaliae
with the flow of,_ gas to the surface,'whereupon
the gas flow- must be closed off and the water
unless such recession' is‘checked.
then transferred wholly to the water surface'.4 '
vof', lthe'wa'ter sand.r _It‘has walls'N' of internally
` ",Inits _presèntqemb'odim'ent vthe invention conf/>
syphoned tothe surface through a' pipe provided sists of a tubular devicey indicated in general by N
for the purpose, by means of the gas Vpressure and situated in the water pipe C above th'e‘level
In man3/,instances the volume ,of'water> becomes -
too greatlfor the v.normal pressure of the' gas to
eject it to thesurface and in consequence either
the¿wel1'is abandoned or thefwater mu‘stjbe
pumped to the surface vat 'great expense -and coni`
20 siderable loss of time. `-In facton many occasions
it is more economical to abandonïthe well than
" to attempt water- evacuation.
The principal object- ofy this invention isïtoçprof
vide an improved apparatus yand process»4 for re
y25 moving._'collectedjll‘water from the bottom of< a
gas well, the apparatus and process being such
‘ that 'the pressure of'thevgas in’l thjewell forms the
increased 'thlckne'ssÍclose to its endsy which: are’ 1'5» internally pipe threadedv at lN2 for thej’reception
l v
of theconforming externally threaded‘ends of the , ` ’
contiguous pipe sections between which i'tîis inter-¿_
posed foruse.r4
lSlidingly arranged'in the cylindrical lowerrnost- 20
end ofjthe tube _N is'a'hollów'piston or `plunger '
having an upwardly extending skIrtII).> In" the
piston head >ID'is an automatic'valve‘, preferably
ofthe ball` type, the ballbeinß indicated by I I
and its seat'in the plstonfhead by I2`._ , It willfbe 25
seen.that,__this valvewill act yto permit upward>
flow and to prevent down orreturnflow. ' _It'will
be observed also that'upon movement‘ofthe pis#
A second important Objectis to provide an ap@ ton to'ïb'ottom dead centerits frustro-conical or'
sole means fore expelling, collected waterf
f ,
paratus >of the class speciiìed which will be sim-` truncated head will seat upon thefshoulder _Il 30
ple, durable,.feñlcient, and inexpensive to’proyduce formed' by the 'reduced internal4v diameter of the
-andto install.’
l i
_», j
. With the above and >otherfobjects in viewas will
general of certain
novel the
, and» combinations , of parts hereinafter , fully de,
lscribed, illustrated in the accompanying drawing
and specifically claimed.
, ,
Figure v1 is a diagrammatic section of a char
acteristic ‘gas well showing atypical position
, thereinlof the invention when used; and,
>Figure 2 is an elevation in median section of
theapparatus constructed in accordance with thisv
. invention.
In the figure showing la gas well, A indicates
tubeand‘when `thus, seated “will valvularly close - ' ’
the .tube against leakage between the piston' and
. Journalledin theskirt'of the piston is alwrist 35
pin.|4 upwardly from kwhichxextends a rod".I »
Well above theV piston this -rod passes through fa
, sleeve’IB'. which dependscoaxially of Ithe‘tube
from a bracket I1 extending'inward'ly from the
tube wall.' The bracket has a passage It leading 40
from outside the tube` to inside said sleeve. ~ , "
The upper end ofthe rod, Il'terminates in a
head `I9 the -,diameter of `which conforms to the
internaljdiameter of the sleeve, and when the
piston and frodfare at upper dead centerthe head 45 y
`the well shaft; Byth'e gas` tubing; C, the water I9fcloses ther passagelß. `The' h'ead'fivl!" is pro
pipe; D, the rubber packer; E, the water intake ' yided with a conical tip’20 adapted to seat ragainst
' port; F, the ground surface; G, the usual top soil; the shoulder 2i 'formed'at the mouth of the sleeve
H, rock; J, slate; K, water sand; L, second strata >by reducing the internal diameter thereof, there
50 of slate; and M, the gas sand. ,Introduced in by constituting a needle valve to close the core of ‘ 50
the water pipe is the apparatus constituting the the sleeve from the tube._
The lower end of the sleeve is permanently ,
subject vmatterwof this invention and which is in'-=
' dicated in general by N in Figure 1 and shown . closed by meansl of a plug 22 which is cored In
separately in sectional detailin Figure 2. y
First it should be understood> that in evacuat
conformity to the rod I5 and also serves as a
guide therefor.y Sealing the sleeve is a packing 55'
ring 23 surmounted by apacking retaining washer
2l which further serves as seat for a helical spring
25 which expands against the shoulder of the rod
head i9 for normal closure retainance oi.' that
In operation, the valve B' is closed thus build
ing up gas pressure in the well. The water pipe
C, in which the tube N is inserted, is then opened
by opening valve C', thus releasing pressure at
10 the head of pipe C. The water in well bottom is
then forced up the pipe C and through the tube
N, with such velocity that the water will surge
above the normal level that the gas pressure will
hold, whereupon the s returning surge of water
in pipe C automatically closes ball valve and di
vides the column oi water. Coincident with clo
sure of the ball valve the weight of the upper
part of the column of water falls upon the piston,
forcing piston to the lower end of its movement,
20 thereby opening needle valve for the admission
of gas into water pipe C, under the upper column
of water, whereupon the> upper column of water
is then forced up the pipe C and ejected at the
well head. Upon the reduction of the weight
of the ,upper column on the piston the needle
valve assisted by the spring will close and shut
on? the gas,at this point, allowing water in well
. bottom to be forced through tube N, up portion
of kpipe C previously evacuated. Thus the cycle
30 is repeated again and again until evacuation is
inlet, a tubular guide extending downwardly in
said casing, a valve stem carrying said lvalve and
having its lower end projecting downwardly from
the guide and connected to said piston, and a
spring in said tubular guide urging said valve Ul
_to closed position.
3. In a device of the kind described, a casing
arranged for interposition in the water flow line
of a gas well, a tubular piston slidably mounted
in _the lower part oi said casing and having an
upwardly facing valve seat at its lower end, a
ball valve normally resting on said seat, a gas
inlet at the upper part of the casing añording
communication from the exterior to the interior
`ofthe casing, a valve normally closing said gas
inlet and movable downwardly in the casing to
open the inlet, a tubular guide extending down
wardly in said casing, a valve stem carrying said
valve and having its lower end projecting> down
wardly from the guide, a cross member extend 20
ing across the upper part of said piston and sup
ported in the piston wall, means connecting said
valve stern and cross member, and -a spring in
said »tubular guide urging said valve to closed
-4. In a device of the kind described, a casing
arranged for interposition in the water flow line
of a gas well, a tubular piston mounted in the
lower part of said casing, an upwardly opening
check valve at the lower end of said piston, a
gas inlet at the upper part oi the casing afford
ing communication from the exterior to the in
terior of the casing, a valve normally closing
said gas inlet and movable downwardly to open
purpose speciñed.
It is obvious that minor changes may be made the inlet, a tubular guide extending downwardly
in the form and construction of the invention in said casing and having an open lower end, a
tubular closure iitted in the lower end of said
without departing from the material spirit there
a valve stem carrying said valve and slid
of. It is not, therefore, desired to conñne the guide,
said closure, means connecting 'the
invention to the exact form herein shown and
described, but it is desired to include all such as lower end oi the valve stem to the piston, and 40
40 properly come within the scope claimed.l
' a spring in said tubular guide between said clo
sure and the last mentioned valve.
We claim:
5. In a device of the kind described, a casing
1. `A tubular body for insertion in a pipe line, an
internal valve seat in said body, a piston including varranged for connection in'the water flow line
a skirt and a frustro-conical piston head having of a gas well, a tubular piston slidably mounted
an axial opening, said head being adapted for in the lower part oi said casing and having an
inverted frusto-conical bottom providing a cen
engagement with said seat, a ball movably con
trally disposed opening, said bottom forming a
` iined within the skirt and adapted for engage
ment with the rim of said opening, a piston rod valve seat, a ball valve normally seating on said
bottom, a gas inlet at the upper part of the cas 50
associated with the piston, means in the oppo
ing affording communication from the exterior to
50 site end of the tubular body establishing com.
the interior of the casing, said gas inlet having a
munication through the body wall, and a shut
horizontal leg extending radially inthe casing
of! valve carried Vby the piston rod and asso
c_iated with said means’and controlled by the and avertical leg vopening upwardly from the
movement of the piston to close said means when inner end of the horizontal leg, a tubular guide
55 the piston is in one position and to open said extending downwardly from the lower side of said
horizontal leg in alinement with the vertical leg,
means when the piston is in another position.
2. In a. device oi' the kind described, a casing a gas valve located at the junction of the hori
arranged for vertically positioning in a well, a zontal and vertical legs of the inlet and normally
tubular piston slidably mounted in the lower part closing said inlet, said valve being slidable down 60.
60 ~offsaid casing, and upwardly opening check valve wardly in said guide, a valve stem connecting
at the lower end of said piston, a gas inlet at the said pistón and said gas valve, and a spring urg
ing said gas valve to closed position.
„_ upper» part of the casing affording communica
tion from the exterior to the interior oi the cas
ing, a valve normally closing said gas inlet and
complete. '
There has thus been provided a. simple and
efiicient device of the kind described and Ior the
-65 movable _downwardly in the casing to open the
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