Tulsa daily world. [volume] (Tulsa, Indian Territory [Okla.]) 1905-1919, 1916-04-13

up and connected 10 the pumps
A smaller bit ~, Of course, ncccS-
Hnry 10 permit passage through th'
casing and the diameter ol thc ho'o
| 10 reduced corrcBpundingy.
Mud fluid iS pumped down me III
| side of tho casing and returning on
the ousidc brings up All material zoos
ouod by the bit untll the tools are ~
tar below the casing that the dfll!lnB5
| win not mix with the circulating ilulo
when the tools arc withdrawn ana ,hc
dr,lliugs removed by II common art
| bottom bnilcr
In the wcll at blackwell referred 10
nhovc /, was found that the tools
| could bo safely operated Sixty 10
| eighty feet ahead Of the casing Ihih'
at course. required bailing hfter ea'h
| screw was drilled ont ana sometimes
| moro frequently II drilling bccaiho
glow and the tools did not cut prop
crly. ,
At intervals the hole was enlarged
II, uudcrrc,minU aud new joints oi
CuHiug added
In THIS wcll the t2h inch casing
,vnn set II, ,13O toct The hpl" WAS
then hnilcd dry and nh open h"'.
drilled 10 2,2i0 feet whore G"S Sa'''
,i about eight hundred rock pressure
was encountered. The circulat"r h'nu
was arniu Installed and "a pressure p"'
on the sand
In this mcthod of drilling. MS wen
Az in any other method employ
GOOD Judgment IL an important Ih',or
IL reducing cNpcuso aud lnsu'lnE 'ho
completion of the Woll.
Tho careful operator viii closely
! watch the mud fluid to ho sure thn'
i l'ng II is u neat mixture o' ''"o
clay tu fresh water Salt water may
he used: but It win not support Toe
clay which rapidly settles OUT III tnc
SUNNI hulc ana requires much "s''a
uon to prevent the ear, ulathg 'iu'u
from becoming too thin.
, SECOND THAT It TX pltstcrmg the
wallis of the wcll and preventing 'ho
os,npo e gas or Intrusion OF salt
NAtoi. :,
t, Thud That It is returning IN tn'
a s,nr \oluuc that ia delivered to the
T. Moll .n
1 If the mud tluid ia too thin 1t wil
. wash away the waits and cause caNlns
q and ma, hc loN IN the porus torlno
T. ttnu and nlluw the gas tu hloW out
Il the mud tluid Is too thick, 1t VII
f., n,t,rf,rc with the action OF the tools
( and cause sluggish drilling ana may
~ oven cause the casing 10 suck "'
'uCCrS ~
, Ii ras or salt water is cncodnterc,
IA ma Such volume as to interfere WI.
E l,.nod circulation, the outlet tor IN
Iicturu tluid should I've oloscd ana mu'
runpcd into the we'll nn'h th
4 lunnilcsomc stratum is completol
~ scaled oft 10y the clay thus lNr'cu lh'
the formation. =,
c no quickly accomplish ;h's, Nj
IlNlcr has designed a spit parNn
clamp Which tits tshtN around IN
N inner casino ami forces down 'I IN
i. l,op of the outer casing maN'nE
/, water UeNt Joint which Viii W.T.
* stand the Wu pressure which III
~ lluiup is able go SUppN
White the corcu)aUNs SNStn h'
rNcu good results IN the Nc"
Iua,kWcu II : not equally Nc
IN ,daptcd 20 an fields and c"vei'
!" lcouS,dcrauon of duihns rNQ0''eo'Sn
: should Nc SlNon before 1t "aop'So
other fields.
- FollowlrS is a 'omNaUSvn " 90
- upurcs between the common an" {.
N rnlat,ng methods based on figures a
/" hearing in recent newspaper "ru'"
ne ,upoS,nr the circulating system
III t,., of Casing on the pil~ortli No.
wv SolcrtN-thrce feet. l5| = inches \
IN 10 AT <S.5O per foot S2ah.50,l 10 tC
G, lSle inches No, 50 s2.U0 per loot =
y" 4t0: total cost Of casing w.
cost ot Casing hN common Nr''''''
ono hundred feet 10 = lhch's
y 8, so nor foot $3.50; zoo feet ~
IL inches No. so at s2oo per foot y
800, 500 feet 10 inches No. 30
81 y, rrr foot $3.50; l., 90 leet y
A inches No. rs nt Sl,06 per foot Sl'NS
nj total cost of casing Sh,i4S
IA saving in casing by tlrcu'ator sS
So tenn $tiNN.So. ,;
lc- Initial cost of circulating .cqui
mont complete with boiler Sz'oo
brprcciatiou on which is not to exec
To pcr cent per we'll which is the o'
nc additional charge that can be ma
oi 5000. the use ot ,he tools ana laoNr
les Inc circulator per day sbS COSY
IN mel ana water per day Sill to'h &C
as rf drWnS per day $40. :
ann S,\tv-Si\ DAYS At S,6 per Gay ,
ole or s. 90 per foot; under the Co
mon method II costs sSoo per J.,
my cr Sf.ohs. this shows a saIlnE "'
,yl NOR foot ON l,5So feet or SIoSN'
,rb lucttnr SNcO. for cost eharSes |
,hr Won ot circulator leaves :. totai ssN
cs c,rr common drifting method oi Ss'
nm. aadinr S.-2S30 the saving IN cas-,
Nm llv Inc circulator method over
cd common method " drilhns' hnaNe'
c> t.tal saving IN favor ot the clrcu''
mn method Of s3,566.So. ,.,..
M In addition to thus 1t Is Il say '"s
- .asinr crews. and the un'e anu VN
ON l.bor consumed IN mudd'hS
'r, ~,.ata encountered.