US1082971A - Subterranean heater. - Google Patents

Description

A. PICK. SUBTERRANBAN HEATER. APPLICATION FILED JA.'. 2, 1913.

1,082,971. Patented Dec. 30, 1913.

2 SHEETS-SHEET l.

WITNESSES INVENTOR ATTORNEY A. PICK. SUBTEERANEAN HEATER. APPLICATION FILED JAN. 2, 1913.

L 3 A u 7 Z A. W 9

2 BHEETS-SHBET 2.

Patented Dec. 30, 1913.

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2 v gg Aw m M a i such elements ma UNITED STATES PATENT ALFRED PECK, 015 NEW YORK,

'N. Y., ASSIGNGR TO EDWARD NIGKLAS BREITUNG, MARQUETTE, MICHIGAN.

SUBTERRA'EEAN HEATER.

Specification of Letters Patent.

Application filed January 2, 1913. Serial lie.

Patented Dec. 3

l U nd a resident of the city count-y. and State use Improvements in Subterranean Heaters. of which the following is e, specification, v

reference being bad to the accompanying dra "rigs, forming a part thereof.

My invention relates. to electric heating apparatus and especially to such is adapted for use in oil wells and other subterranean cavities. its object is to provide a simple and dur eble device of the aforesaid charactor that shall embody aplurality of rigported resistance elements which are r ad 'v removable and replaceable which s ected that the device may oe used in dillieult place-s end also to provide an orrengement whereby the heat generated by be utilized. to great advantage.

(Ether ob iect-s of my invention will be set forth hereinafter.

1 will describe my invention in the fol lowing specification and point out the novel features thereof in appended claims.

Referring to the drawings, Figure 1 is a side elevation largely in longitudinal sec tion of a heater constructed in accordance with myinvention. certain sections being broken away to reduce its length. Fig. 2 shows in section one of the end supporting members and its protective head. A portion of the heater without the casing is shown. in Fig. 3 one of the connections between pairs of heating elements being shown in section. Fig. 4 is an transverse section on the line 3- -3 oi Fig. 1. Fig. 5 is an end elevation on a larger scale of the heater with the casing and end cap removed. Figs. 6 d 7 sre enlerged longitudinal sections of respective ends ofthe device shown in JL 1 .l. I i

like characters of reference designate corresponding purts in all the figures.

The heater here shown is built up of a plurality of tubular supporting members 10 having abutting end flanges 11 and assembled end'to end. tips-zed about the tube are through the dan es through which are n screw-threaded metallic studs. 12 d from the flanges by inslices oi. insulating" moew York, have invented certain new and terial, over which are metallic washers 1.

Nuts 16 screwed onto the studs clamp the adjacent supporting members together.

Outside of the nuts hollow nietullic sockets 17 are screwed onto the studs. "lheee serve to hold the ends of carbon rods which form the resistancelelements. Thus {the heater is built up in sections with a se' of spaced carbon rods in alinement with each other, electrically connected together but in sulated from the supporting members. this construction the rods are held rigidly but their supports are such as to allow for expansion and to make tli measily and independently removable an replaceable.

The end sections of the supporting members are designated by 20 and their flanges by 21. Studs like 12 extend through them and between adjacent studs are metallic connectors 22. electric cable are connected respectively wittwo of the unconnected studs. One of these end flanges is shown in Fig. 5 and it, is to be understood that on the other end flange there are connectors between the studs which are opposite the ends of the carbon rods. not connected by the connectors 22. "This orrangement connects the resistance rods in se-.

ries but. it is obvious that by other arrange ments well within the knowledge of one The wires and 2d of an 26 (Fig. 2) which are made with conical flanges 27 and with bails 9.8.

The parts described form an operative structure and before pointing out the other parts of the apparatus illustrated in the drawings. I will. describe the manner in which it is used. A rope, chain or cable is secured to the bail 38 of the upper protective head and by it the device is lowered into the cavity for example, an oil-well. Electric current supplied" through wires 23, 24 will generate heat in the rods 18 which heat may be utilized to melt deposits of such substances'as purallin which often clogup oil wells and injure their usefulness. The lower protective head guides the device as it is be ing lowered and holds the more delicate carbon rods away from the sides of the well. The upper protective head also guides'tlie device and its conical flange deflects to the side any loose matter which may fall on it from above. The heater elements are mainiziineli at the propc such saltwater,

* head c1 coupling 31 which is rovided win .-L J. a 110%; and tcuc E ether as liclicnl sisllmcc ccils so I in scans wells necessai: 7 tsccver t do b "QJIO'VIClHI' a tubular s a @Illllll opening in. which its a small tube 3% which extends through the beaten is a discharge head screwed, into the and ll jlfl or coupling 3].. The discl'uzrgc lieu-dis iaperel la a blunt and at 34; anal is provided with a. pluralily 0f dim, oriflees A cable head 36 isscrwed intc upper end of the shell 30. The cable 29 in which are the wires 23', 24lpasses through an opening in the central pail; of this head. The lower and of lllllS cpening is but sliglllly larger than the cable but; is enlarge-l h farm, an annular chamber 3? which is fillecl will: an elastic cement suc .l 01 example as 'i'liifi" be: coznpcund anal clcsecl by a A bail 39 sc cws ever a tln'emled boss which is a part of fil'ie cable head and 501cc the cap 38 down onto the ccment tc lcrin a fiuil lighl joint. The balls 03" the protective w tlic lube A: to pass through hen}. A c lain 28" is pmvivled on the upper one, by means of which the heater may be removed from the shell. To the up per end of the tube 3: a r valve 40 which is closccl sprin" which permits the valve to open i. Wurclly when it is subjected to pressure. When this form of the device is used, the inside of the shell may be filled with some non -ccnduclzin liquid such as kerosene which will not inter few with the electric heating circuits cmnplctecl through the rods, and lowered into the well 01 cavi'" The heater is then sup pliecl with elcc "ical energy. hen the temperature and pressure 5f the have bcr sufi'icicn'tly raised by the heat 1mm l'l'rc elc l'ziczzlly licnlc-(l TO-TlE, the valve 40 will be lnmaticnlly opened. and the lint vapors l'c -secl from ilic shell will pass down tlu'nugh tube 32 anal be diffcharged through the orifices h s; vapors discharged in this Way are pumcu lzuly effective in melting the purafiin and heavy products of petroleum which usually clog an oil Well to a greater or less critenli and consequently tll output Well is mlv tcriu lv increased. The heat may be thus applied at clcsi'rccl points in a much more effective way than has heretofore been possible.

/Vlm't I claim its:

1. A subterranean. l'lPfilifl comprining a plumlilv of supporling 'n mlicrs having abutting" and Han i; and emlile-cl ncl t0 cause ZfillS spas-cal and and a pluraliqv Pen licfiwccu llic flanges (incl :1 lion lcr comprl plum members h lug ullu'illng cu and fUTSJCllllllQil (and to and, :1 gllllil lllly 0 about, the in-e'nlbcrs sccu'rcll 13mm liczucr comprisin Asylum su' clamping the l'l'l'Gl'" W on the l r can 3 v scckel! ncuier 00mg,

rnrls; luzving' i7.

A smiicrm m i lurulily 0i 'lul I liming abutting and ilungcs a:-*einblcd and 0 end, screw-ll:rcadccl melulli. jllldS ex- :zntling tlnnugh. but insulated frcm said lac; V 0n the Sulldb? for clamping the .ncmbcvzk liar, sockets screwed on the ends of 'lzlnc ,nucls a plurality of carbon resisliu cc rolls having their ends in said socl sis 21ml 3, protecling llfifill on each end of the healer.

A subterranean llliafilGl, comprising: a shell and clcsccl iicmln. a llll'JQ einenlfling lnnp itmliunlly llironggli the sine l and beycncl or:

0' suppe'irt lng imzu'lliers of the bowls, n. valves for cs'laaoli ahing a cmnmuniration i'act'wccn mu: curl of tun tube m l the inside 0f the shell, aurl electric llcatcz surrounding the lulu Within l'llG shell.

7. A miblc-rmncan ruler comp?" ing a tnbulnl shell. 2, ill? head at one end and a cable l *r, 2: central tube Wil'llin lxlic into the (lis cluupjc lie-ml :1? one Q'llll flu-ll close to the. cable lieml z u u. valve for establishing: coin .vccn the central lulu-c the shill new n: cable liezul, and :1 fictionalized cm 1 'lc-u'ter surroniu'ling the tube Within bOZlQl'.

A subterranean llc comprixing a closed tubular shell, forming a bailey, :1 listclulrge llGMl 2'3 one. sncl nmvilmil with an orifice s d a calilc head at the other, a cubic through cable head. a fiuldning llicz'efor, a minimal luhc Wll' llI! stance rolls spaced tube sections together,

0 to end and the shell extending into the discharge head .at one end and close to the cable head at the other, a valve for establishing commu-, nieation between boiler near the cable head and an electric heater comprising a plurality of tube sections, having abutting endW-ianges'and assembled end to end, a plurality of screwthreaded studs spaced'about the tube ex tending through and insulated from the flanges, nuts on the studs for clamping the a plurality of carbon resistance rods spaced and sockets on said studs surrounding the ends ofthe rods removably securing the rods to the studs.

9. A Subterranean heater comprising a plurality of hollow supporting. members having abutting end flanges connected end the central tube and the around each section;

formingtherethrough a continuone opening, and a plurality of resistance rods spaced about the members between the flanges and secured thereto.

10. A subterranean heater comprising a closed casing, 'electrie insulatin matter therein, adapted to be diwharged t erefrom,

an electric heater within the casing submerged in said matter, means for supply- ALFRED PICK.

to the heater, and means opened at a predetermined Witnesses:

G. R. QUIMBY, F. B. GRAVES.

e casing to discharge the heated 4

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