US1570244A - Indicator and safety coupling for rotary drills - Google Patents

Indicator and safety coupling for rotary drills Download PDF

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Publication number
US1570244A
US1570244A US690508A US69050824A US1570244A US 1570244 A US1570244 A US 1570244A US 690508 A US690508 A US 690508A US 69050824 A US69050824 A US 69050824A US 1570244 A US1570244 A US 1570244A
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United States
Prior art keywords
drill stem
valve
bore
drill
head
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Expired - Lifetime
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US690508A
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Goldsmith Gary Allen
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Individual
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Individual
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Priority to US690508A priority Critical patent/US1570244A/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/06—Releasing-joints, e.g. safety joints
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1632—Destructible element

Definitions

  • My invention relates to drill stems and consists of the novel features herein shown,
  • An object. of my invention is to make a drill stem having means for warning the operators when the stem breaks, and having means for pulling out the lower end of the stem after it is broken.
  • Fig. 1 is a view in elevation of a drill stem embodying the principles of my invention.
  • Fig. 2 is a diagrammatic view of a drill stem and drill in a well hole, being operated by a rotary rig and showing a break in the drill stem near its lower end so that the lower end of the drill stem will not rotate and showing the application of my invention to warn the operators at the rig that the drill stem is broken and showing the internal connection which is not broken by the rotary strain and which will pull the broken end of the drill stem and bit out of the hole.
  • Fig. 3 is an enlarged sectional detail dia metrical of a well hole showing the details of my invention.
  • Fig. 4 is a horizontal cross section on the line 4-4 of Fig. 3 and looking downwardly.
  • Fig. 5 is a horizontal cross sectional detail through the well casing and drill stem on a line 5-5 of Fig. 3 and looking upwardly.
  • Fig. 6 is a perspective of the upper valve plug shown in Fig. 3.
  • Fig. 7 is a perspective of the lower oper ating head shown in Fig. 3.
  • Fig. 8 is a view analogous to Fig. 3 and showing a break in the drill stem and showing how the lifting rod connecting the upper valve plug and lower 0 erating head at the opposite sides of the reak stops the water circulation to indicate to the operators that the drill stem is broken and forms a connection between the upper part of the drill stem and the broken off part which will lift the broken 02 part when the drill stem is removed from the well.
  • the bit 1 is connected to a drill stem section 2 and the coupling members 3, 4 and 5 connect the drill stem section 2 to the drill stem section 6.
  • the upper end of the member 3 is internally screw-threaded to form the pin box 7 and the screw-threaded pin 8 is screwed into this box.
  • the bore 9 is formed from the upper end of the member 4 and is somewhat larger than the water passage to form a spring seat shoulder 11 and the extreme upper end of the member 4 is bored out and machined to form the internal screw-thread
  • An expansion spring 14 is mounted in the bore 9.
  • the lower end of the member 5 has a bore 15 matching the bore 9 and an external screw-thread 16 to match the thread 13.
  • the operating head 17 is loosely mounted in the bore 15.
  • a spring seat comprising a disc or washer 18 is laced upon the spring 14.
  • the operating ead 17 is a solid cylinder having radial longitudinal ribs 19, said ribs extending below the lower end of the cylinder and resting upon the washer 18.
  • the bores 9 and 15 are sufiicient to allow a sliding movement of the operating head on account of the jolts from drilling and to make allowance for variations of the screw threaded connections of the drill stem section and coupling.
  • the lifting rod 20 is screwed into the upr end of the head 17 and firmly seated by ock nut 21.
  • the upper end of the bore 15 forms a tapered shoulder 22 and a smaller bore 23 extends from the shoulder 22 to the upper end of the member 5.
  • the rod 20 extends loosely through the bore 23.
  • the drill stem section 6 is screwed into the upper end of the member 5 and may be of considerable length.
  • the coupling members 24, 25, 26 and 27 are assembled and screwed upon the upper end ofv the drill stem sectlon 6.
  • a bore 30 ex through the member 24.
  • the member 2 x connected to the member 24 by the pi; and box construction 31., there being a small e 32 through the lower end of the met and a larger bore 33 extending bore 32 upwardly, there being a wt 0 34 at the 111nction of the bores 32 ans; so.
  • a valve plug 35 works loosely in the bore 33 and has a valve end 36 to fit the seat 34.
  • the valve head 35 is a cylindrical body having longitudinally extending radial ribs 37 to fit loosely in the bore 33 and allow the water to pass the valve head when the valve is open.
  • the member 26 is connected to the member by the screw-thread construction 38 and has a bore 39 forming an extension of the bore 33 for the valve head 35 to operate in.
  • the rod 20 is screw-threaded through the valve head 35 and has a jamb nut 40 upon its upper end against the valve head to hold the valve head solidly in an adjusted posi tion.
  • the bore 39 extends some distance into the lower end of the member 26 and a smaller bore 41 extends the remaining distance to the upper end of the member.
  • the coupling member 27 is connected to the member 26 by pin and box construction 42 and a drill stem section may be connected to t the upper end of the member 27 in the ordinary way.
  • the extreme upper end of the drill stem has the ordinar swivel head 43 to which a hose 44 is attac ed and the other end of the hose 44 is connected to the pump mechanism 45 so as to circulate water downwardly through the drill stem to the bit 46 at the bottom of the well hole.
  • the drill stem 47 is being operated by a'rotary rig 48 in the usual way.
  • the drill stem section 6 maybe of any desired length and there may be an number of the constructions incorpora into a long drill stem. Usually the drill stems break near their lower ends and leave a short piece of drill stem and the bit in the Well hole.
  • the upward assembly 48 comprises the coupling members 24, 25, 26 and 27, including the valve 35 and the valve seat 34, and the lower assembly 49 includes the coupling members 3, 4 and 5, including the lifting head 17 and the coo rating elements.
  • a drill stem comprising an upper assembly of couplings including a valve construction and a lower assembly of couplings having a lifting head with limited upward movement, a string of drill stem sections connecting the assemblies and a lifting rod connectlng the valve to the lifting head through the string'of drill stems and normally holding the valve open, so that if the string of drill stems breaks between the assemblies and the upper part is raised slightly the valve will close and if the drill stem is removed; from the well the broken ofi the lifting rod.
  • a drill stem comprisingan upper assembly of couplings including a valve construction and a lower assembly of couplings having a lifting head with limited upward movement, a string of drill stem sections connecting the assemblies and a liftin rod connecting the valve to the lifting headthrough the string of drill stems and normally holding the valve open so that if the string of drill stems breaks between the assemblies and the upper art is raised slightly the valve willclose and if the drill stem is removed from the well'the broken will he raised by the lifting rod.
  • a drill stem comprlsin an upper assembly of couplings inclu ing a head off part mounted to reciprocate, and a seat limiting the downward movement of the head, a

Description

Jan. 19 1926.
G. A. GOLDSMITH INDICATOR AND SAFETY COUPLING FOR ROTARY DRILLS Filed. Feb. 4., 1924 3 Sheets-Sheet 1 Jan. 19 1926. 1,570,244
G. A. GOLDSMITH INDICATOR AND SAFETY COUPLING FOR ROTARY DRILLS Filed Feb. 4, 1924 3 Sheets-Sheet 2 WWWMXQM 1,570,244 G. A. GOLDSMITH INDICATOR AND SAFETY COUPLING FOR ROTARY DRILLS Jan. 19 1926.
Filed Feb. 4., 1924 3 Sheets-Sheet 3 k wfifi yww a w y/M688 g M 2 1 1 1 WWW x 3 TA k i y; k 2 x? xx? w zfqwvg $2 Patented Jan. 19, 1926.
UNITED STATES GARY ALLEN GOLDSMITH, OF LONG BEACH, CALIFORNIA.
INDICATOR AND SAFETY COUPLING FOR ROTARY DRILLS.
Application filed February 4, 1824. Serial No. 690,508.
' tion.
My invention relates to drill stems and consists of the novel features herein shown,
described and claimed.
An object. of my invention is to make a drill stem having means for warning the operators when the stem breaks, and having means for pulling out the lower end of the stem after it is broken.
Fig. 1 is a view in elevation of a drill stem embodying the principles of my invention.
Fig. 2 is a diagrammatic view ofa drill stem and drill in a well hole, being operated by a rotary rig and showing a break in the drill stem near its lower end so that the lower end of the drill stem will not rotate and showing the application of my invention to warn the operators at the rig that the drill stem is broken and showing the internal connection which is not broken by the rotary strain and which will pull the broken end of the drill stem and bit out of the hole.
Fig. 3 is an enlarged sectional detail dia metrical of a well hole showing the details of my invention.
Fig. 4 is a horizontal cross section on the line 4-4 of Fig. 3 and looking downwardly.
Fig. 5 is a horizontal cross sectional detail through the well casing and drill stem on a line 5-5 of Fig. 3 and looking upwardly.
Fig. 6 is a perspective of the upper valve plug shown in Fig. 3. V
Fig. 7 is a perspective of the lower oper ating head shown in Fig. 3.
Fig. 8 is a view analogous to Fig. 3 and showing a break in the drill stem and showing how the lifting rod connecting the upper valve plug and lower 0 erating head at the opposite sides of the reak stops the water circulation to indicate to the operators that the drill stem is broken and forms a connection between the upper part of the drill stem and the broken off part which will lift the broken 02 part when the drill stem is removed from the well.
Referring to Fig. 1, the bit 1 is connected to a drill stem section 2 and the coupling members 3, 4 and 5 connect the drill stem section 2 to the drill stem section 6.
Referring to Fig. 3, the coupling members 3, 4 and 5 are shown in diametrical longitudinal sectional detail.
The upper end of the member 3 is internally screw-threaded to form the pin box 7 and the screw-threaded pin 8 is screwed into this box. The bore 9 is formed from the upper end of the member 4 and is somewhat larger than the water passage to form a spring seat shoulder 11 and the extreme upper end of the member 4 is bored out and machined to form the internal screw-thread An expansion spring 14 is mounted in the bore 9. The lower end of the member 5 has a bore 15 matching the bore 9 and an external screw-thread 16 to match the thread 13. The operating head 17 is loosely mounted in the bore 15. A spring seat comprising a disc or washer 18 is laced upon the spring 14. The operating ead 17 is a solid cylinder having radial longitudinal ribs 19, said ribs extending below the lower end of the cylinder and resting upon the washer 18. The bores 9 and 15 are sufiicient to allow a sliding movement of the operating head on account of the jolts from drilling and to make allowance for variations of the screw threaded connections of the drill stem section and coupling.
The lifting rod 20 is screwed into the upr end of the head 17 and firmly seated by ock nut 21. The upper end of the bore 15 forms a tapered shoulder 22 and a smaller bore 23 extends from the shoulder 22 to the upper end of the member 5. The rod 20 extends loosely through the bore 23. The drill stem section 6 is screwed into the upper end of the member 5 and may be of considerable length. The coupling members 24, 25, 26 and 27 are assembled and screwed upon the upper end ofv the drill stem sectlon 6.
The threads 28 and 29 at the ends of ti e drill stem section 6 are the ordinary th used in such work. A bore 30 ex through the member 24. The member 2 x connected to the member 24 by the pi; and box construction 31., there being a small e 32 through the lower end of the met and a larger bore 33 extending bore 32 upwardly, there being a wt 0 34 at the 111nction of the bores 32 ans; so.
A valve plug 35 works loosely in the bore 33 and has a valve end 36 to fit the seat 34. The valve head 35 is a cylindrical body having longitudinally extending radial ribs 37 to fit loosely in the bore 33 and allow the water to pass the valve head when the valve is open. The member 26 is connected to the member by the screw-thread construction 38 and has a bore 39 forming an extension of the bore 33 for the valve head 35 to operate in.
The rod 20 is screw-threaded through the valve head 35 and has a jamb nut 40 upon its upper end against the valve head to hold the valve head solidly in an adjusted posi tion. The bore 39 extends some distance into the lower end of the member 26 and a smaller bore 41 extends the remaining distance to the upper end of the member. The coupling member 27 is connected to the member 26 by pin and box construction 42 and a drill stem section may be connected to t the upper end of the member 27 in the ordinary way.
The extreme upper end of the drill stem has the ordinar swivel head 43 to which a hose 44 is attac ed and the other end of the hose 44 is connected to the pump mechanism 45 so as to circulate water downwardly through the drill stem to the bit 46 at the bottom of the well hole. The drill stem 47 is being operated by a'rotary rig 48 in the usual way. I
It frequently happens in the operation of a drill with a rotary rig that the drill stem breaks and the o erators have no notice of the break and 50 t e rig keeps on grinding with the u per part of the .drill stem operating and tlie lower broken oif part not operating. Of course this accomplishes nothing but wearing out the equipment.
When a drill stem is e nipped in accord ance with the principles of my invention and the drill stem section 6 breaks between the upper assembly 48 and the lower assembly 49 of my apparatus, as indicated at 50, the rod 20 will not be broken by the rotation of the upper part of the drill stem and if the upper part-of the drill stem is moved upwardly the valve 36 will seat upon the shoulder 34 and stop the circulation of the water and indicate to the operators that the drill stem is broken. Then if the drill stem is raised the rod 20 will lift the broken off end of the drill stem out of the well.
The drill stem section 6 maybe of any desired length and there may be an number of the constructions incorpora into a long drill stem. Usually the drill stems break near their lower ends and leave a short piece of drill stem and the bit in the Well hole.
The upward assembly 48 comprises the coupling members 24, 25, 26 and 27, including the valve 35 and the valve seat 34, and the lower assembly 49 includes the coupling members 3, 4 and 5, including the lifting head 17 and the coo rating elements.
Thus I have pro uced a drill stem comprising an upper assembly of couplings including a valve construction and a lower assembly of couplings having a lifting head with limited upward movement, a string of drill stem sections connecting the assemblies and a lifting rod connectlng the valve to the lifting head through the string'of drill stems and normally holding the valve open, so that if the string of drill stems breaks between the assemblies and the upper part is raised slightly the valve will close and if the drill stem is removed; from the well the broken ofi the lifting rod.
Various changes may be made without departing from the spirit of my invention.
part will be raised by I claim: l 1. A drill stem comprisingan upper assembly of couplings including a valve construction and a lower assembly of couplings having a lifting head with limited upward movement, a string of drill stem sections connecting the assemblies and a liftin rod connecting the valve to the lifting headthrough the string of drill stems and normally holding the valve open so that if the string of drill stems breaks between the assemblies and the upper art is raised slightly the valve willclose and if the drill stem is removed from the well'the broken will he raised by the lifting rod.
2. A drill stem comprlsin an upper assembly of couplings inclu ing a head off part mounted to reciprocate, and a seat limiting the downward movement of the head, a
lower assembly of couplings having ahead
US690508A 1924-02-04 1924-02-04 Indicator and safety coupling for rotary drills Expired - Lifetime US1570244A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768812A (en) * 1954-02-05 1956-10-30 Warner A Williams Safety drill pipe for oil well drilling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768812A (en) * 1954-02-05 1956-10-30 Warner A Williams Safety drill pipe for oil well drilling

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