Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS526708 A
Publication typeGrant
Publication dateOct 2, 1894
Filing dateSep 1, 1893
Publication numberUS 526708 A, US 526708A, US-A-526708, US526708 A, US526708A
InventorsStephen A. Horton
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Well-drilling apparatus
US 526708 A
Images(1)
Previous page
Next page
Description  (OCR text may contain errors)

s. A. HGRTON. WELL DRILLING APPARATUS.

Patented Oct. 2, 1894.-

w 3 A m. w J n h L H m W I/ FIR T A 0/, 6 0 7 Am A M li 111 51444 4 I 1 l, 1.

IHr

(No Model.)

NIT STATES PATENT OFFICE.

STEPHEN A. HORTON, OF CLARKSVILLE, TEXAS.

WELL-DRILLING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 526,708, dated October 2, 1894:.

Application filed September 1 89 Serial No. 3 o (N0 model-l To all whom it may concern:

13o it known that I, STEPHEN A. HORTON, a c tlzen of the United States,residin g at Olarksmile, in the county of Red River and State of Tenas, have invented a new and useful Well- Drllllng Apparatus, of which the following is a specification.

lVIy invention relates to Artesian or oil well drllling apparatus, and especially to means for detachably securing the drill-bit to the tubing, and it contemplates the provision of improved means whereby an expansion drill blt or blade of any preferred construction can be secured to or detached from the drill tublng without removing the latter from the well. I The object of my invention is to provide improved means for attaching the core, which represents one part of the coupling and carrice the drill-bit to the shell, which represents the other part of the coupling, by a rotary forward motion of the tubing, or a motlon in the direction of drilling, and for detaching the same by an opposite movement of the tubing. In order to permit of this reverse rotation of the tubing I have found it necessary to provide means for coupling the sections of the tubing whereby accidental detachment is avoided, and hence in setting forth my invention I have shown and described a coupling for the sections of tubing whereby the tubing may be rotated in either direction without affecting the security of the connections.

Further objects and advantages of this in:

vention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims. r

In the drawings; Figure 1 is a vertical axial section of a portion of a well tubing provided with drill-hit securing devices embodying my invention. Fig. 2 is a sectional view taken centrally of the shell detached from the tubing and the core removed. Fig. 3 is a side view of the detachable member or core.

Similar numerals of reference indicate corl responding parts in all the figures of the drawings.

The fixed member or shell 1 is provided with interior spaced ribs 2, which are disposed parallel with the axis of the shell and are divided to form separate parts arranged in alignment with intervening open spaces; and the core 3, which carries the expansion bit 4:, is provided with exterior vertical ribs 5, extending from the upper to the lower end of the core and connected at their upper ends by a stop-shoulder 6. Intermediate between the ribs 5 are arranged vertical auxiliary ribs 7, which are connected at their lower ends to the main ribs, respectively, by horizontal bearing-ledges 7, thus forming pockets 9 between the auxiliary and main webs, of which the ledges form the floors. The distance between the upper edges of the ledges corresponds with the distance between the lower ends of the parts of the ribs in the shell. The diameter of the core is increased within the pockets to form cam or wedge faces 10, for a purpose hereinafter described, and the upper ends of the auxiliary ribs, the lower ends of the main ribs 7, and the upper ends of the ribs 2 are tapered to facilitate the application of the members.

The core is hollow, being provided with a bore 11, with which communicate perforations 12 formed in the wall of the core, the bore 11 being designed to allow water to pass from above the core to the drill-bit, and the perforations 12 facilitating the lowering of the core into the casing by allowing the escape of air and water from the space around the core to the interiorthereof. An operating rod or cable 13 is connected to the upper end of the core by means of a yoke or staple 14;.

In operation the shell or fixed member of the coupling is attached to the lower end of the lowermost section 15 of the well tubing, and when it is desired to attach a bit to the tubing, the latter is secured to the lower end of the core and the core is lowered by means of the attached rod into the tubing until the stop-shoulder on the core comes in contact with the upper ends of the ribs in the shell. The parts are guided to this position by the tapered upper ends of the ribs 2 and lower ends of the ribs 5. With the parts in the relative positions mentioned, the core may be rotated to the left, or in a direction reverse to that of the rotation of the tubing during the drilling operation, by twisting the rod before the lower end of the drill-bit comes in contact with the lower end of the hole, but it is also possible (and desirable when a cable hole the rotation of the core, which heretofore has been equal to that of the tubing, will be checked, and the tubing will continue to rotate independently of the core until the ribs 2 come in contact with the edges of the main ribs 5. After this the core will rotate with the tubing, but as the tubingis gradually lowered the interior ribs ofthe shell will pass into the pockets 9 on the core, thus locking the two members firmly together. The lock is made still more secure by the cam surfaces within the pockets against which the inner surfaces of the ribs bite and prevent vibration of the core,-said ribs being correspondingly tapered.

To remove the drill-bit the tubing is elevated a sufficient distance to enable the core to drop and release the ribs of the shell from the sockets of the core; and in case the parts cling together and the core is elevated by the frictional contact thereof, it may be released by striking the upper end of the rod 13, or tapping the tubing with a sledge and jarring the same, after which the core may be rotated to the right, or the tubing may be rotated to the left, at the same time that it is lowered gradually to bring the lower ends of the blades into contact with a fixed object in ordfiarlto prevent the core from turning with the s e l.

From the above description it will be apparent that my invention is designed to provide for attaching and detaching a drill-bit by means controlled by the rotation of the tubing, thereby necessitating either a forward or a backward rotation of the tubing in applying or removing the bit. In order to accom plish this operation successfully and without causing the disconnection of the sections of the well tubing, it is necessary to provide a coupling between such sections which will permit rotation in either direction. In Fig. 1

I have shown such a connection in which the ends of the sections are oppositely screwthreaded exteriorly and are provided with terminals having intermeshing irregularities or serrations, and these extremities of the sections are engaged by asleeve 19, which is screw-threaded interiorly in opposite directions from its center to its terminals. In connecting the adjoining sections their ex tremities are fitted in opposite ends of the sleeve, and the latter is rotated, thereby drawing the two ends toward each otheruntiltheir terminal irregularities or serrations 1ntermesh and prevent independent rotation of either section.

It will be understood that when a cable 15 employed, an auger-bit and jars must be 1nterposed between the core and the cable to give sufficient Weight for a proper operation in coupling and uncoupling. It Wlll be understood, furthermore, that various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having described my invention, what I claim is- 1. In a rotary well-drilling apparatus, a coupling for connectinga drill bit to the drill tube, comprising detachable telescoping members, the exterior member or shell being provided with interior spaced ribs, and the nterior member or core being provided with exterior longitudinal ribs 5, short parallel ribs 7, ledges 8 connecting the lower ends of the short ribs 7 to the continuous ribs 5, and a stop-shoulder 6 connecting the upper ends of the ribs 5, substantially as specified.

2. In a rotary well-drilling apparatus, a coupling for connecting the drill bit to the drill tube, comprising detachable telescop ng members, the exterior member or shell being provided with interior spaced tapered ribs 2, and the interior member or core being provided with pockets 9 having closed lower ends and beveled surfaces 10, whereby as the ribs 2 are fitted into said pockets by the descent of the exterior member or shell the beveled surfaces of the said ribs engage the beveled surfaces of the pockets and bind the parts against independent vibration, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affiXed my signature in the presence of two witnesses.

STEPHEN A. HORTON.

W'itnesses:

H. C. MOORE, J. J. EARLY.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6280000Nov 20, 1998Aug 28, 2001Joseph A. ZupanickMethod for production of gas from a coal seam using intersecting well bores
US6357523Nov 19, 1999Mar 19, 2002Cdx Gas, LlcDrainage pattern with intersecting wells drilled from surface
US6412556Aug 3, 2000Jul 2, 2002Cdx Gas, Inc.Cavity positioning tool and method
US6425448Jan 30, 2001Jul 30, 2002Cdx Gas, L.L.P.Method and system for accessing subterranean zones from a limited surface area
US6439320Feb 20, 2001Aug 27, 2002Cdx Gas, LlcWellbore pattern for uniform access to subterranean deposits
US6454000Oct 24, 2000Sep 24, 2002Cdx Gas, LlcCavity well positioning system and method
US6478085Feb 20, 2001Nov 12, 2002Cdx Gas, LlpSystem for accessing subterranean deposits from the surface
US6561288Jun 20, 2001May 13, 2003Cdx Gas, LlcMethod and system for accessing subterranean deposits from the surface
US6575235Apr 15, 2002Jun 10, 2003Cdx Gas, LlcSubterranean drainage pattern
US6598686Jan 24, 2001Jul 29, 2003Cdx Gas, LlcMethod and system for enhanced access to a subterranean zone
US6604580Apr 15, 2002Aug 12, 2003Cdx Gas, LlcMethod and system for accessing subterranean zones from a limited surface area
US6662870Jan 30, 2001Dec 16, 2003Cdx Gas, L.L.C.Method and system for accessing subterranean deposits from a limited surface area
US6668918Jun 7, 2002Dec 30, 2003Cdx Gas, L.L.C.Method and system for accessing subterranean deposit from the surface
US6679322Sep 26, 2002Jan 20, 2004Cdx Gas, LlcMethod and system for accessing subterranean deposits from the surface
US6681855Oct 19, 2001Jan 27, 2004Cdx Gas, L.L.C.Method and system for management of by-products from subterranean zones
US6688388Jun 7, 2002Feb 10, 2004Cdx Gas, LlcMethod for accessing subterranean deposits from the surface
US6708764Jul 12, 2002Mar 23, 2004Cdx Gas, L.L.C.Undulating well bore
US6725922Jul 12, 2002Apr 27, 2004Cdx Gas, LlcRamping well bores
US6732792Feb 20, 2001May 11, 2004Cdx Gas, LlcMulti-well structure for accessing subterranean deposits
US6848508Dec 31, 2003Feb 1, 2005Cdx Gas, LlcSlant entry well system and method
US6851479Jul 17, 2002Feb 8, 2005Cdx Gas, LlcCavity positioning tool and method
US6942030Feb 11, 2004Sep 13, 2005Cdx Gas, LlcThree-dimensional well system for accessing subterranean zones
US6962216May 31, 2002Nov 8, 2005Cdx Gas, LlcWedge activated underreamer
US6964298Jan 20, 2004Nov 15, 2005Cdx Gas, LlcMethod and system for accessing subterranean deposits from the surface
US6964308Oct 8, 2002Nov 15, 2005Cdx Gas, LlcMethod of drilling lateral wellbores from a slant well without utilizing a whipstock
US6976533Aug 15, 2003Dec 20, 2005Cdx Gas, LlcMethod and system for accessing subterranean deposits from the surface
US6976547Jul 16, 2002Dec 20, 2005Cdx Gas, LlcActuator underreamer
US6986388Apr 2, 2003Jan 17, 2006Cdx Gas, LlcMethod and system for accessing a subterranean zone from a limited surface area
US6988548Oct 3, 2002Jan 24, 2006Cdx Gas, LlcMethod and system for removing fluid from a subterranean zone using an enlarged cavity
US6991047Jul 12, 2002Jan 31, 2006Cdx Gas, LlcWellbore sealing system and method
US6991048Jul 12, 2002Jan 31, 2006Cdx Gas, LlcWellbore plug system and method
US7007758Feb 7, 2005Mar 7, 2006Cdx Gas, LlcCavity positioning tool and method
US7025137Sep 12, 2002Apr 11, 2006Cdx Gas, LlcThree-dimensional well system for accessing subterranean zones
US7025154Dec 18, 2002Apr 11, 2006Cdx Gas, LlcMethod and system for circulating fluid in a well system
US7036584Jul 1, 2002May 2, 2006Cdx Gas, L.L.C.Method and system for accessing a subterranean zone from a limited surface area
US7048049Oct 30, 2001May 23, 2006Cdx Gas, LlcSlant entry well system and method
US7073595Sep 12, 2002Jul 11, 2006Cdx Gas, LlcMethod and system for controlling pressure in a dual well system
US7090009Feb 14, 2005Aug 15, 2006Cdx Gas, LlcThree-dimensional well system for accessing subterranean zones
US7100687Nov 17, 2003Sep 5, 2006Cdx Gas, LlcMulti-purpose well bores and method for accessing a subterranean zone from the surface
US7134494Jun 5, 2003Nov 14, 2006Cdx Gas, LlcMethod and system for recirculating fluid in a well system
US7163063Nov 26, 2003Jan 16, 2007Cdx Gas, LlcMethod and system for extraction of resources from a subterranean well bore
US7182157Dec 21, 2004Feb 27, 2007Cdx Gas, LlcEnlarging well bores having tubing therein
US7207390Feb 5, 2004Apr 24, 2007Cdx Gas, LlcMethod and system for lining multilateral wells
US7207395Jan 30, 2004Apr 24, 2007Cdx Gas, LlcMethod and system for testing a partially formed hydrocarbon well for evaluation and well planning refinement
US7213644Oct 14, 2003May 8, 2007Cdx Gas, LlcCavity positioning tool and method
US7222670Feb 27, 2004May 29, 2007Cdx Gas, LlcSystem and method for multiple wells from a common surface location
US7264048Apr 21, 2003Sep 4, 2007Cdx Gas, LlcSlot cavity
US7299864Dec 22, 2004Nov 27, 2007Cdx Gas, LlcAdjustable window liner
US7353877Dec 21, 2004Apr 8, 2008Cdx Gas, LlcAccessing subterranean resources by formation collapse
US7360595May 8, 2002Apr 22, 2008Cdx Gas, LlcMethod and system for underground treatment of materials
US7373984Dec 22, 2004May 20, 2008Cdx Gas, LlcLining well bore junctions
US7419223Jan 14, 2005Sep 2, 2008Cdx Gas, LlcSystem and method for enhancing permeability of a subterranean zone at a horizontal well bore
US7434620Mar 27, 2007Oct 14, 2008Cdx Gas, LlcCavity positioning tool and method
US7571771May 31, 2005Aug 11, 2009Cdx Gas, LlcCavity well system
US8291974Oct 31, 2007Oct 23, 2012Vitruvian Exploration, LlcMethod and system for accessing subterranean deposits from the surface and tools therefor
US8297350Oct 31, 2007Oct 30, 2012Vitruvian Exploration, LlcMethod and system for accessing subterranean deposits from the surface
US8297377Jul 29, 2003Oct 30, 2012Vitruvian Exploration, LlcMethod and system for accessing subterranean deposits from the surface and tools therefor
US8316966Oct 31, 2007Nov 27, 2012Vitruvian Exploration, LlcMethod and system for accessing subterranean deposits from the surface and tools therefor
US8333245Sep 17, 2002Dec 18, 2012Vitruvian Exploration, LlcAccelerated production of gas from a subterranean zone
US8371399Oct 31, 2007Feb 12, 2013Vitruvian Exploration, LlcMethod and system for accessing subterranean deposits from the surface and tools therefor
US8376039Nov 21, 2008Feb 19, 2013Vitruvian Exploration, LlcMethod and system for accessing subterranean deposits from the surface and tools therefor
US8376052Nov 1, 2001Feb 19, 2013Vitruvian Exploration, LlcMethod and system for surface production of gas from a subterranean zone
US8434568Jul 22, 2005May 7, 2013Vitruvian Exploration, LlcMethod and system for circulating fluid in a well system
US8464784Oct 31, 2007Jun 18, 2013Vitruvian Exploration, LlcMethod and system for accessing subterranean deposits from the surface and tools therefor
US8469119Oct 31, 2007Jun 25, 2013Vitruvian Exploration, LlcMethod and system for accessing subterranean deposits from the surface and tools therefor
US8479812Oct 31, 2007Jul 9, 2013Vitruvian Exploration, LlcMethod and system for accessing subterranean deposits from the surface and tools therefor
US8505620Oct 31, 2007Aug 13, 2013Vitruvian Exploration, LlcMethod and system for accessing subterranean deposits from the surface and tools therefor
US8511372Oct 31, 2007Aug 20, 2013Vitruvian Exploration, LlcMethod and system for accessing subterranean deposits from the surface
Classifications
Cooperative ClassificationE21B10/66