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Патент USA US2405937

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' I Aug. 20, 1946.
A_ H, BEAL
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2,495,937
DEVIATION RECORDING DEVICE
Filed Aug. 21, 1944 _
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Patented Aug. 2Q, 1946
2,405,937
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i UNITED STATES f PATENT oFFlcE
Albert H. Beal, Houston, Tex.
Application August 21, 1944, >Serial No. 550,441
2 Claims. (Cl. 33-2055)
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This invention relates to a deviation recording
apparatus.
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An object of the invention is to provide appa
ratus of the character described designed to be
lowered into' a well borevand containing means
which are maintained inoperative while the ap
paratus is being lowered but which becomes active
when the apparatusV reaches the selected place in
the bore, and is maintained stationary at'such
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2
for lowering the apparatus into, Aand withdrawing
it from the well.
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Attached to the lowerend of the housing there
is a guide point 4 havinga deep socket 5 therein
in which is located the coil spring 6.
Enclosed within the housing there is a, cylin
drical casing which is formed of upper, inter
mediate and lower sections 1, 8 and 9, the sections
1 and 8 being connected by an inside coupling
I0. The upper> end of the casing is closed by a
location, whereby a record is made of the inclina 10 cap II having a stuiñng box I2 therein and the
tion of the bore at the selected point.
lower end I3 of the casing is closedas shown in
In drilling a well bore it is desirable to main
Figure 2 and is seated onA the upper end of the
tain the same as nearly straight as possible, for
coilÍspring 6, which forms- a shock absorber‘as
Well known reasons, and in order to do this it is
shown in Figure 4. .
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necessary,l from time‘to time,to survey the bore
The coupling I Il is inwardly thickened and has
in ‘order to obtain the required deviation data so
an axial bearing I4 therethrough through which
thatV correction can be made in case deviation
the driving rodv I5 is slidably fitted and this rod
occurs. The invention herein disclosed has been
is- surrounded by the stuflingqbo-x |20, carried by
particularly» designed for the purpose of ascer
the coupling I0. The, upper end of this rod ex
20
taining the inclination, if any, of the well bore at
tends upwardly through the stun-lng box I2 and
a selected point therein so that the bore can be
carries the enlarged head I6.
straightened at the point of deviation, if devia
Fixed on the rod I5 within the housing there
tion occurs. The invention also embodies a novel
is an enlarged spring seat -I1 and surrounding
timing arrangement for maintaining the record 25 said rod and interposed between said seat and the
making means inoperative, or inactive, While the
cap I I there is va strong coil spring I8..
apparatus is being lowered to the point where
Above the coupling I 0 the rod I5 is formed with
thesurvey is to be made and which, after a pre
a rack face I9.
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determined interval, becomes operative'to actuate
Fixed on the upper end of the coupling Iû and
the record making means to make Ya rrecordof the 30 upstanding therefrom there is a frame having
the side members 20, 20 whose upper Vendsr are
deviation.
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'With the above and other objects in view the
invention has particular relation to `certain novel
features of construction, operation and arrange
ment of parts, an example of which 'is given in
this specification and illustrated in the accom
connected by the head 2I through which the rod
I5 passes. Thetiming device gearing is mounted
in this frame. This gearing includes a spur gear -
22 which is in Yconstant mesh with the face I9
and which is fixed on the transverse shaft 23.
Fixed on the shaft 23 there is a. large spur gear
panying drawing wherein-_
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24 which is in mesh> with a smaller spur gear 25
Figure l’shows a fragmentary, vertical, sec
fixed on one end of the cross shaft 26. _Loosely
tional view showing the upper end of the ap
40 mounted on the other end of the shaftr 28 there
is a spur gear 21 which is adjacent a ratchet
Figure 2 shows a fragmentary, vertical, sec
wheel 28 which is ñxed on the shaft 26. Pivoted
tional view showing an intermediate portion
paratus.
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on the gear 21 there are the pawls 29, 29 which
thereof.
are spring pressed and which are arranged to- co
Figure 3 shows a fragmentary, side, elevationalv
45 operate with the ratchet wheel 28. When the
View of the timing device gearing; and
rod I5 is pulled upwardly t0 place the spring vI8
Figure 4 shows a side> elevation 4of the appa--V
under compression the shaft >2li will be rotated
ratus, partly in section, as mountedA in the -hous
through the gears 22, 24 and 25 but the ratchet
ing, ysaid housing being shown in section.
wheel 28v willbe rotated in the direction ofthe
Referring now more particularly to the draw
ing wherein like numerals of reference >designate 50 arrow in Figure 3 and no rotation will be imparted
to the spur gear wheel 21 nor to the smaller gear
the same parts in each of the ñgures, the numeral l
3E! which is in mesh therewith.
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I designates an elongated, tubular housing shaped
Upon release ofV thegrod 'I5- the spring I8`will
to be lowered into a well. The upperrend of this
cause the same to'move downwardly thus 'revers
housing is closed by a cap- 2 to which the lower
end of the4 _cable 3 is connected. ‘,The cable is used
ing the rotation of the >gearing above referred to
2,405,937
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and causing the ratchet wheel 28 to engage the
pawls 29 to impart rotation to the gear wheel 21
and to the gear 3i) in mesh therewith. This gear
30 is iîxed on the transverse shaft 3l and rotates
a train of gearing therebeneath designated gen
eraliy the numeral 32. This train of gearing em
bodies also a conventional escapement 33 which
is controlled by a swinging pendulum 34 which
spherical head Bil forming a ball joint member
which is normally supported in the socket 6I
formed in the upperl face of the bearing plate 62
which is secured to the lower end of the cross
head 35. The lower end of this cross head has a
deep vertical socket 63 in which there is located
a bearing block 64 and a coil spring 65 is enclosed
within the socket 63 and presses downwardly
is fixed on the `transverse shaft 35. Therefore,
when the rod _I5 isV released it willgnot suddenly 10 against the ball joint member 60 and maintains
it iirmly seated in the socketßl. The pressure
move downwardly but its downward movement
of
the bearing block B4 against the joint member
will be controlled by the timing gearing herein->
60 is suñicient to prevent vibration or any undue
above described.
oscillation of the pendulum 58 but permits said
The numeral 35 designates a cross head which.
is attached to the lower end of the rod l5 and
depending from
pendulum to assume a true vertical position.
In use the rod l5 is pulled upwardly the re
this cross head there is a tubular »
`quired distance,` depending on the depth at which
the survey is _to be made thus placing the spring
I8 under compression. The apparatus is then
been illustrated and willnow be described;V there
enclosed
in the housing! and the cap 2 attached
is a, tubular anchor 3$-ïslidably fitted into the 20
thereto and the apparatus is then lowered into
upper end of the lower section 9 of the casing'and
the well; As above stated when the rod l5 is
provided with a longitudinal slot 3L A key 38
pulled
upwardly the ratchet 28 will rotate idly
is anchored to the section 9 and extendedV in
thus allowing the free upward movement of said
wardly into the slot. This anchor is supported
on a coil spring 39`which is ñtted within the sec 25
Upon release of the rod l5 the timing mecha
tion 9 and which is supported on inwardly ex
nism will immediately beginto operate and the
tended pins 4Q which are anchored to the casing.
skirt 36.
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A preferred form of recording mechanism> has
rod.
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The upper end of the anchortß is _enlarged
and fitted closely within the intermediate section
8 of the casing providing a downwardly facing
external stop 4 l which limits the downward move
ment of the anchor. Said anchor is normally
held in its upper position by thecoil spring 39.
There is a disklike record receiving element 42
whose margin is suitably attached `to-.the upper 35
end of the anchor 3S. This record receiving ele
ment is preferably,> though not necessarily, `trans
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rod l5 will begin a slow downward movement,
saidV movement being controlled by Vthe Ytiming
mechanism. The rod is initially drawn upwardly
far enough to allow sufñcient time for lowering
the apparatus to the point where the survey is to
be made before the recording`> means' operates.
When the apparatus has reached the desired lo
cation in the well it should `vbe held there sta
tionary to allow suflicient time for the pendulum
58 to move downwardly untilthe' pointed marker
äßengages and forms a> mark Aon the record re
ceiving element 42. The YSpring _65 will there-_
' after yield to prevent the marker‘from unduly
parent and is formed> of any'suitable material
adapted for the purpose. >.Preferably it is slightly
flexible and of suñìcient softness to receivea mark 40,
mutilating the record receiving element. ‘ f
or impression and will -not be liablé'to be kbroken
or mutilated.
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Spaced beneath the pins 49 are the inwardly
extended pins 43 whichV support a ring 44. Sup
ported on this ring there is acoil spring 45 which 45
supports a plate Mijand normally holds it against
the pins 45. This,` plate 45 has a central 4open
ing dl and surrounding said openingen the. .plate
there is an annular seat _49 on'which the ¿ball 5B
is mounted. AThis ball is retained in placebythe
retainer plate 5l which .is secured -onthe 'plate'
45.. The retainer plate 5| has .a centralyopening
and a post 52.is attached to, and upstands from,
the ball 59 through said- opening 4and its upward
end is pointed and spaced. beneath the recording
element
42.
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An externally threaded stem 53 depends from
the ball 5B through theopening LV! and a pen
_ dulum is attached to and depends from said stem.
The‘downward movement of*- the -rod _l5 .and
clii‘osä head 35 continues until the lower end of the
s 1r
V35 comes into `contact with and moves the
record receiving element 42 >downwardly*into,en
gagement with the pointed .upper end of the post
52, placing?the 'springjSil under compression and
said posts will make a mark on the under side of
said receiving element and. thereafter the spring
45 will yield to, prevent untrue mutilation or me
record receiving element by said post.
The springs _55, 39 and GS_Will yield
to prevent the record receivingelement .'42 -from
being unduly mutilated but at the same time have
suflicient
resistance to causei said markers to make
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visible marks on _the record receiving` element, _ `
When the apparatus is lowered to the desiredplace in the well where a record of the inclination
is to be made, a suiîicient vtimeshould be allowed
to lapse to give the timing device time to operate
This pendulum includes a head 54 and a weight 60
to make the record and the apparatus may‘then
55. This weight encloses'a coil spring 5t whose
upper end is connected to the headY and whose
lower end is connected to the weight. This pen
dulum maintains the pointed post 52 ini-vertical
position. The head and weight have a ball »and
socket joint connection 51. whereby -_ the shock
be withdrawn for an inspection of the record re
ceiving element. .
If the markers 52, 5S, make marks exactly at"
the center of the element 4_2_’it will be known that _
the Well bore was` exactlyvert-ical at the point
where the record was made.
of the lateral swing of themen'dulum vwill be ab
If'the marks made on the record receiving clef '
sorbed to> prevent breakage or bending of parts,- 1 ment
are _oiî "center they will be on yopposite sides ’
particularly when the pointed end ofthe‘post 52 »
of Ithe{center-of'thereceiving element. The dis
is engaged with the record receiving element 42.
Depending from thevcross ‘head 35 there is an
upper pendulum â'u'iwhich is located within the
skirt 3B. vThe lower end of VVthis upper pendulum
tance the marks so made are from the center of n
theîreceiving element 'indicates the amount of in- I
clination of the bore.“ Inother wordsv the _data
furnished bythe marks made by the _markers 52,
is providedwitha pointed- markeräli'. » TheV up
59 are sumc'ientfto' enable 'the'amount Aand'direc
per ena of the pen'euiun’i fsa» is- fómiedfwithïaln tion
of-the'inclination of the Vbore vat a poiiit‘wl‘iere*
2,405,937
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the record is made to be readily ascertained and
if the inclination of the bore at that point makes
it necessary, the bore can be straightened in any
approved manner.
What I claim is:
1. In a deviation recording device shaped to be
lowered into a well and including a casing having
upper and lower sections and an inside coupling
connecting said sections and also having means
in the lower section effective, upon operation
thereof, to make a record of the inclination of a
well bore, a cap closing the upper end of the up
per section, said cap and coupling having aligned
bearings, a rod slidable through said bearings and
having its upper end extended above the cap and
forming a grip, said rod having a rack face there
on, a spring seat on the rod, a coil spring around
the rod between said seat and cap provided to
force the rod downwardly, when the spring is
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2. In a deviation recording device shaped to be
lowered into a well and including a casing having
upper and lower sections and an inside coupling
connecting said’sections, and also having means
in the lower section effective, upon operation
thereof, to make a record of the inclination of a
well bore, a closure for the upper end of the up~
per section, said closure and coupling having
aligned bearings, a rod having a rack face and
slidable through said bearings and having its
upper end extended above the closure and forming
a grip whereby the rod may be manually moved in
one direction, a spring seat on the rod, a coil
spring around the rod between said seat and clo
sure arranged to be placed under compression
when the rod is so moved and provided to force
the rod in the other direction, when the spring
is placed under compression, to operate the record
making means and a gearing assembly in the cas
placed under compression, to operate the record 20 ing and supported on the coupling and forming
a timing device and geared to the rack face to
making means and gearing in the casing forming
retard the downward movement of the rod,
a timing device and geared to the rack face to
ALBERT I-I. BEAL.
retard the downward movement of the rod.
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