US3155403A - Scavenging head assembly for rotary drilling apparatus - Google Patents

Scavenging head assembly for rotary drilling apparatus Download PDF

Info

Publication number
US3155403A
US3155403A US34431A US3443160A US3155403A US 3155403 A US3155403 A US 3155403A US 34431 A US34431 A US 34431A US 3443160 A US3443160 A US 3443160A US 3155403 A US3155403 A US 3155403A
Authority
US
United States
Prior art keywords
sword pipe
elbow
pipe
sword
packing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US34431A
Inventor
Schlicckmann Albrecht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gutehoffnungshutte Sterkrade AG
Original Assignee
Gutehoffnungshutte Sterkrade AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gutehoffnungshutte Sterkrade AG filed Critical Gutehoffnungshutte Sterkrade AG
Application granted granted Critical
Publication of US3155403A publication Critical patent/US3155403A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/02—Swivel joints in hose-lines

Definitions

  • the hose, gooseneck and sword pipe are rigidly connected with the cleaning or flushing head housing in such manner that the sword pipe projects centrally into the spindle to serve as the rotary axis for the cleaning or flushing head.
  • the spindle is provided, in its upper portion, with an interchangeable gland packing and the like, which slidingly abuts on the smooth outer surface of the sword pipe, to seal against the pressure of the passing cleaning or flushing fiuid.
  • the goosenecks were frequently provided with a stopper or cover, which was disposed vertically overthe spindle bore.
  • This stopper was at first used only to introduce a measuring tool, on a rope, from the top end into the hollow drill rods. In this manner the time for assembly and disassembly of the rod assembly wassaved when.
  • the gooseneck can remain assembled with the flush housing when thepacking box is mounted, since the sword pipe and the packing box can be laterally removed through the lantern or cage.
  • the elbow used to supply the flushing or cleaning fluid from the hose to the hollow drill rods is connected with a preferably detachable part of the flushing head housing bymeans of a bayonet-type lock and can belaterally swung out of the lock about a bearing arranged in the region of the hose connection coaxially to the drill rods and to the flushing head housing.
  • FIG. 1 shows a vertical sectionthrough a cleaning, flushing or scavenging head with all its associated parts
  • FIG. 1a shows a detail section thereof drawn on an enlarged scale
  • FIGJII is an enlarged sectional view showing the manner of assembling the sword pipe and casing.
  • FIG. 2 is a top plan View of the flushing head with the elbow swung out.
  • a flushing or cleaning head housing 1 which is a suspended on the hook of an extension device by means of a stirrup (not shown, as it extends transverse .to the sembly 3.
  • the housing 1 is covered at the top by a detachable hood 4 secured thereon, which has an undercut opening at the interior of projection 5a, serving as a bayonet or quick-disconnect lock 5 for one end 6:: of an elbow 6, generally called gooseneck, which carries laterally thereof a vertical bearing '7 seated in a bracket portion 4a of hood 4 and forming a swivel axis at the other end of the elbow with which the flushing hose (not shown) is engageable for connection therewith.
  • an elbow 6 generally called gooseneck, which carries laterally thereof a vertical bearing '7 seated in a bracket portion 4a of hood 4 and forming a swivel axis at the other end of the elbow with which the flushing hose (not shown) is engageable for connection therewith.
  • a sword pipe 8 serves as a connecting element or link between the elbow 6 and the drill rod 3.
  • the upper end 8a of pipe 8 projects slightly into the elbow 6 and is sealed or packed against it by an annular rubber ring or gasket 9.
  • the elbow is thus secured or locked against accidental swinging.
  • the sword pipe is surrounded by a sealing or packing assembly 25 comprised of lip rings 10 made of rubber and seated in associated profile rings 11 made of bronze.
  • the rings are held together under pressure, by means of a clamping nut 12 threaded into a collar or shoulder 13 provided on the drill spindle 3.
  • the rings serve as a packing or seal against the flushing fluid pumped into bore 3a of the drill spindle.
  • a spring ring 14 which is seated in about half of an annular groove 15 (FIG. 1a) defined in the lower portion 8b of the sword pipe 8.
  • a corresponding annular groove, designated as 16, provided on the underside of the lowermost profile ring ll. serves as an abutment or seat for a portion of spring 14 which projects from groove 15.
  • the sword pipe 8 is encompassed by a threaded sleeve 17 provided with a coarse knurled thread.
  • the pipe 8 is firmly braced against sleeve 17 by a conventional split tension ring 18, 18.
  • the ring 18, 18' as shown at FIG. lb, is comprised of two concentrically interengaged ring parts 18 and 18' each having a wedge-shaped profile.
  • the sleeve 17 is internally threaded and the flange 19 is screwed into the sleeve, thereby gripping the outer ring 18 at the bottom surface thereof a shown. Due to the axial force of the flange 19, the outer ring part 18 is forced radially outwardly and the inner ring part 18' is forced radially inwardly. Accordingly, the sleeve 17 is firmly secured on the pipe 8 and will rotate therewith.
  • the thread of sleeve 17 is engaged by a drive nut 20, which is disposed in a lantern or cage shaped recess 21 of the housing hood 4, so that drive nut 20 can not be displaced axially.
  • the elbow 6 is provided with lateral projections 5 which engage in a bayonet lock 5.
  • the bayonet type lock 5 is so formed that the resultant force component which is directed by the flushing pressure, upwardly toward the sword pipe 8, is absorbed by the abutment defined by an inner projection 5a overlying the outer projections 6' of elbow 6 on the sickle-shaped surface (see FIG. 2) of the bayonet lock, which is, without the customary screw joint.
  • the elbow is secured, during drilling, against accidental rotation or turning outwardly from the bayonet lock, in that the sword pipe is pushed or forced in the operating position upwardly into the centering bore 65 in the projections 6' of the elbow.
  • the round rubber ring 9 disposed in this centering bore forms a seal or packing against maximum flushing pressures.
  • sword pipe 8 as the main part subject to wear, is a simple tubular section with a completely smooth surface, which can be ground, hardened, chrome-plated and lapped at little cost, to provide a long life. With a very symmetrical design, the pipe can even be reversed and further used.
  • the assembly and disassembly of the sword pipe 8 can be effected as follows by means of a universal tool:
  • the latter is then swung laterally outwardly from the bayonet lock 5 to the position shown in FIG. 2, the suspended flexible hose or the hinge coupling of the special pipe line permitting the slight rotation, until the full open ing above the sword pipe is exposed, as shown in FIG. 2.
  • the sword pipe is then raised sufficiently by turning the drive nut clockwise, until the coarse thread of the sleeve 17 is exposed above the nut and the sleeve and the pipe 3 can then be gripped by hand and removed. After this is done, it is necessary only to insert a replacement sword pipe, which has been provided with a clamping device, in reverse order by means of the drive nut.
  • the clamping device itself is not subject to any considerable wear; it can always be used with a new or reversed old sword pipe.
  • the mounting of the clamping device on the sword pipe should never be effected in a derrick, because of the danger that some parts might be dropped.
  • the ring packing 25 can be removed from the top by itself or together with the sword pipe, by means of a hook arranged on the handle of the driving tool.
  • the sword pipe is provided at the lower end, on its outer surface with the semicircular groove 15, so that the round steel spring ring 14, inserted in this groove, engages during the ascending motion of the sword pipe the annular groove 16 on the underside of the bottom lip ring seat or cage 11 serving as an abutment or with the bottom profile ring ill. in the case of a roof collar packing.
  • a worn-out packing can be replaced by a completely mounted spare packing comprising sword pipe, clamping device and packing assembly, without loosening, transporting or putting aside small connecting elements or individual spare parts during the assembly.
  • the complete packing assembly 25 can be kept ready in a hermetically sealed package (soldered into a can or welded into a plastic bag) provided with preserving and lubricating agents.
  • a rotary drilling apparatus comprising a hollow elbow member having an internal bore for supplying fluid and having an end with projections extending outwardly in opposite directions, a cleaning head housing having an upper portion with a lock opened at one end to receive said elbow projections, said lock having an internal groove defined therein in which said projections are engageable for joining said elbow to said head, a hollow sword pipe having a bore adapted to align with the internal bore of said elbow, said elbow having a widened diameter portion cut thereinto from the end adjacent said sword pipe to receive said sword pipe, a resilient ring member disposed in said widened diameter portion and frictionally engageable with said sword pipe when it is inserted therein, a rotary drill rod assembly carried by said housing and surrounding the lower end of said sword pipe including a member having an internal bore of greater diameter than the exterior of said sword pipe and permitting telescoping of said sword pipe downwardly therein to permit the upper end to clear said elbow, a groove defined around the lower end of said sword'pipe, a spring member disposed in said groove, packing disposed
  • a rotary drilling apparatus comprising a hollow elbow member having an internal bore for supplying fluid and having an end with at least one projection extending outwardly therefrom, a cleaning head housing having a lock portion opened at one end to receive said elbow with the projection thereon, said lock having an internal groove defined therein in whieh the projection of said elbow is engageable for joining said elbow to said cleaning housing, a hollow sword pipe frictionally carried by said head and having a bore adapted to align with the internal bore of said elbow and extending downwardly from said elbow and said lock portion into said housing, a nut rotatably carried on said housing and being constrained against axial displacement, said nut being threadably connected to said sword pipe andbeing rotatable to displace said sword pipe axially into and out of engagement with said elbow, a rotary drill rod assembly carried by said housing and adapted to surround the lower portion of said sword pipe and including a member having a bore of a size to permit telescopic movement of said sword pipe into and out of said member, packing disposed around said sword pipe, means
  • a rotary drilling apparatus wherein said member of said drill rod assembly includes an interior portion defining a ledge, said packing being disposed around said sword pipe and resting on said ledge, said means to compress said packing comprising a clamping nut threadable into said drill rod assembly to compress the packing into engagement with said member.
  • a rotary drilling apparatus including a groove defined on the lower end of said sword pipe, and a retaining spring disposed in said groove and projecting outwardly from said sword pipe to support said packing thereon.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Description

Nov. 3, 1964 A. SCHLIECKMANN SCAVENGING HEAD ASSEMBLY FOR ROTARY DRILLING APPARATUS Filed June 7. 1960 FIG.I
kLI
FIG. la
W ZZ United States Patent s teases scAvENerNo rman ASSEMBLY son noranv DRILLHNG APPARATUS Albrecht Sehlieeirmann, Dusseldorf, Germany, assignor to Gutehofilnungshutte Sterkrade Aktiengesellschaft, Gherhausen, Rhincland, Gemany Filed lane 7, 1960, Ser. No. 34,431 Claims priority, application Germany .l'une 10, E559 4 Claims. (Cl. 235-111) or scavenging is effected via a hose or a flexible and articulated pipe. The flushing hose is threaded on the outer nipple of an elbow or gooseneck, which directs the cleansing or flushing fluid to'the center of the flushing head and which leads into the spindle via a sword pipe. l
The hose, gooseneck and sword pipe are rigidly connected with the cleaning or flushing head housing in such manner that the sword pipe projects centrally into the spindle to serve as the rotary axis for the cleaning or flushing head. The spindle is provided, in its upper portion, with an interchangeable gland packing and the like, which slidingly abuts on the smooth outer surface of the sword pipe, to seal against the pressure of the passing cleaning or flushing fiuid.
At the high pressure of the sand-containing, possibly corrosive cleaning or flushing fluid, the sword pipe and the packing are subjected to considerable wear.
Though special precautions are taken to impart a long life to these parts, it is necessary to replace them from time to time during short standstill periods of the drilling apparatus. In this work access to the cleaning or flushing head from the work platform, particularly when it is sus pended in the tool hook, andalso when it is laterally offset in the Kelly hole, is diificult and the cleaning head can be reached .by the crew only from an elevator or by means of a ladder.
Operating with tools and loose parts high abovethe platform floor is particularly dangerous, especially if work operations have to be performed simultaneously on the platform floor. The operations on the fiushing head should therefore, and in order to save costs during standstill operations of the plant, be carried out very rapidly.
In prior art flushing or cleaning heads little attention was paid to considerations of the requirements for a safe construction which would also permit rapid replacement ofworn out parts. In order to be able to disassemble the sword pipe and the packing, a'heavy flushing hose had to be first emptied and then removed, after which the gooseneck could be unthreaded to permit the removal ofthe sword pipe. The packing then had to be removed laterally, piece hy piece, through the window of the lantern or cage.
The goosenecks were frequently provided with a stopper or cover, which was disposed vertically overthe spindle bore. This stopper was at first used only to introduce a measuring tool, on a rope, from the top end into the hollow drill rods. In this manner the time for assembly and disassembly of the rod assembly wassaved when.
carrying out measurements in the drill hole.
An .improvedprior art cleaning or flushing head con- 3,155,4d3 Patented Nov. 3, i964 struction was created by making the diameter in the abovementioned stopper so large that the sword pipe could be removed through the opening left by the disassembled stopper. Consequently, the flushing hose could remain suspended'on the gooseneck and this considerably facilitated the disassembly operations. was held against the high flushing pressure with many small screws, and the packing had to be removed through the lantern or cage in many single parts, if necessary, with several'special tools.
Another prior art construction is very similar, particularly with regard to the handling of many connecting elements and single parts, wherein the upper part of a tube elbow. having a bend of about degrees, is flanged on the lantern. Since two pipe connections have to be packed in this embodiment, an even greater number of screws is required for the flanged joint for high pressures. Compared with the gooseneck provided with'a stopper, there are no operative advantages in thisconstruction.
Pursuant to an improved prior art construction, the gooseneck can remain assembled with the flush housing when thepacking box is mounted, since the sword pipe and the packing box can be laterally removed through the lantern or cage.
However, this construction has the disadvantage that the overall length of the flushing head increases, due to the higher lantern, and the packing train mustbe pulledby means of two threads or flanges, upwardly and downwardly into the lantern and packed. The replaceable packing train is correspondingly complicated, and its assembly requires great care and the use of special tools.
It is an. object of the present invention to provide means resulting in a construction which permits the replacement of the entire packing train with simple and safe means, without the necessity for complete removal or temporary storage of the connecting elements, andwithout the necessity of using special tools, so that the operations can be performed in a very short time with a maximum of safety for the entire crew.
Itis another object of the present invention to provide means facilitating the introduction of measuring or other special instrumentsfrom the top into the hollow rod assembly, with the cleaning or flushing hose mounted.
in attaining the foregoing objects of the present invention, the elbow used to supply the flushing or cleaning fluid from the hose to the hollow drill rods is connected with a preferably detachable part of the flushing head housing bymeans of a bayonet-type lock and can belaterally swung out of the lock about a bearing arranged in the region of the hose connection coaxially to the drill rods and to the flushing head housing.
These and other objects of the invention will become furtherapparent from the detailed description, reference being made to the accompanying drawing showing preferred embodiments of the invention.
In the drawing which illustrates the best mode presently contemplated for carrying out the inventionzj FIG. 1 shows a vertical sectionthrough a cleaning, flushing or scavenging head with all its associated parts;
FIG. 1a shows a detail section thereof drawn on an enlarged scale;
FIGJII) is an enlarged sectional view showing the manner of assembling the sword pipe and casing; and,
' FIG. 2 is a top plan View of the flushing head with the elbow swung out. I
Referring moreparticularly to the drawing, there is disclosed a flushing or cleaning head housing 1, which is a suspended on the hook of an extension device by means ofa stirrup (not shown, as it extends transverse .to the sembly 3.
However, the stopper.
The housing 1 is covered at the top by a detachable hood 4 secured thereon, which has an undercut opening at the interior of projection 5a, serving as a bayonet or quick-disconnect lock 5 for one end 6:: of an elbow 6, generally called gooseneck, which carries laterally thereof a vertical bearing '7 seated in a bracket portion 4a of hood 4 and forming a swivel axis at the other end of the elbow with which the flushing hose (not shown) is engageable for connection therewith.
A sword pipe 8 serves as a connecting element or link between the elbow 6 and the drill rod 3. In its operating position shown in FIG. 1 the upper end 8a of pipe 8 projects slightly into the elbow 6 and is sealed or packed against it by an annular rubber ring or gasket 9. The elbow is thus secured or locked against accidental swinging. At its lower end 812, the sword pipe is surrounded by a sealing or packing assembly 25 comprised of lip rings 10 made of rubber and seated in associated profile rings 11 made of bronze. The rings are held together under pressure, by means of a clamping nut 12 threaded into a collar or shoulder 13 provided on the drill spindle 3. The rings serve as a packing or seal against the flushing fluid pumped into bore 3a of the drill spindle.
Below the packing assembly 25 provision is made for a spring ring 14 which is seated in about half of an annular groove 15 (FIG. 1a) defined in the lower portion 8b of the sword pipe 8. A corresponding annular groove, designated as 16, provided on the underside of the lowermost profile ring ll. serves as an abutment or seat for a portion of spring 14 which projects from groove 15. Between the upper seal or packing 9 against the elbow 6 and the lower seal or packing against the collar or shoulder 13, the sword pipe 8 is encompassed by a threaded sleeve 17 provided with a coarse knurled thread.
The pipe 8 is firmly braced against sleeve 17 by a conventional split tension ring 18, 18. The ring 18, 18' as shown at FIG. lb, is comprised of two concentrically interengaged ring parts 18 and 18' each having a wedge-shaped profile. The sleeve 17 is internally threaded and the flange 19 is screwed into the sleeve, thereby gripping the outer ring 18 at the bottom surface thereof a shown. Due to the axial force of the flange 19, the outer ring part 18 is forced radially outwardly and the inner ring part 18' is forced radially inwardly. Accordingly, the sleeve 17 is firmly secured on the pipe 8 and will rotate therewith. The thread of sleeve 17 is engaged by a drive nut 20, which is disposed in a lantern or cage shaped recess 21 of the housing hood 4, so that drive nut 20 can not be displaced axially.
It will be noted that at its end 6a, the elbow 6 is provided with lateral projections 5 which engage in a bayonet lock 5.
The bayonet type lock 5 is so formed that the resultant force component which is directed by the flushing pressure, upwardly toward the sword pipe 8, is absorbed by the abutment defined by an inner projection 5a overlying the outer projections 6' of elbow 6 on the sickle-shaped surface (see FIG. 2) of the bayonet lock, which is, without the customary screw joint. The elbow is secured, during drilling, against accidental rotation or turning outwardly from the bayonet lock, in that the sword pipe is pushed or forced in the operating position upwardly into the centering bore 65 in the projections 6' of the elbow. At the same time the round rubber ring 9 disposed in this centering bore forms a seal or packing against maximum flushing pressures.
An important advantage of this construction is that the sword pipe 8, as the main part subject to wear, is a simple tubular section with a completely smooth surface, which can be ground, hardened, chrome-plated and lapped at little cost, to provide a long life. With a very symmetrical design, the pipe can even be reversed and further used.
The assembly and disassembly of the sword pipe 8 can be effected as follows by means of a universal tool:
By turning the drive nut 26 counter clockwise, the pipe 8 is moved downwardly so that its upper end So moves out from the centering bore 6b of the elbow 6.
The latter is then swung laterally outwardly from the bayonet lock 5 to the position shown in FIG. 2, the suspended flexible hose or the hinge coupling of the special pipe line permitting the slight rotation, until the full open ing above the sword pipe is exposed, as shown in FIG. 2. The sword pipe is then raised sufficiently by turning the drive nut clockwise, until the coarse thread of the sleeve 17 is exposed above the nut and the sleeve and the pipe 3 can then be gripped by hand and removed. After this is done, it is necessary only to insert a replacement sword pipe, which has been provided with a clamping device, in reverse order by means of the drive nut.
The clamping device itself is not subject to any considerable wear; it can always be used with a new or reversed old sword pipe. However, the mounting of the clamping device on the sword pipe should never be effected in a derrick, because of the danger that some parts might be dropped.
The ring packing 25 can be removed from the top by itself or together with the sword pipe, by means of a hook arranged on the handle of the driving tool.
For this purpose, the sword pipe is provided at the lower end, on its outer surface with the semicircular groove 15, so that the round steel spring ring 14, inserted in this groove, engages during the ascending motion of the sword pipe the annular groove 16 on the underside of the bottom lip ring seat or cage 11 serving as an abutment or with the bottom profile ring ill. in the case of a roof collar packing.
In this way a worn-out packing can be replaced by a completely mounted spare packing comprising sword pipe, clamping device and packing assembly, without loosening, transporting or putting aside small connecting elements or individual spare parts during the assembly. The complete packing assembly 25 can be kept ready in a hermetically sealed package (soldered into a can or welded into a plastic bag) provided with preserving and lubricating agents.
Various changes and modifications may be made without departing from the spirit and scope of the present invention and it is intended that these modifications and changes be embraced by the annexed clairns.
Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:
1. A rotary drilling apparatus comprising a hollow elbow member having an internal bore for supplying fluid and having an end with projections extending outwardly in opposite directions, a cleaning head housing having an upper portion with a lock opened at one end to receive said elbow projections, said lock having an internal groove defined therein in which said projections are engageable for joining said elbow to said head, a hollow sword pipe having a bore adapted to align with the internal bore of said elbow, said elbow having a widened diameter portion cut thereinto from the end adjacent said sword pipe to receive said sword pipe, a resilient ring member disposed in said widened diameter portion and frictionally engageable with said sword pipe when it is inserted therein, a rotary drill rod assembly carried by said housing and surrounding the lower end of said sword pipe including a member having an internal bore of greater diameter than the exterior of said sword pipe and permitting telescoping of said sword pipe downwardly therein to permit the upper end to clear said elbow, a groove defined around the lower end of said sword'pipe, a spring member disposed in said groove, packing disposed around said sword pipe and supported on said ring member, and a clamping nut engageable with said drill rod assembly and movable to compress said packing against said sword pipe and the interior of said drill rod assembly member, means defining a groove around said sword pipe in said housing opened at one end, a drive nut of lesser dimension than said groove supported thereon, said drive nut extending around said sword pipe, a sleeve afixed to said sword pipe and frictionally coupled with said drive nut, said drive nut being rotatable to displace said sword pipe axially, said elbow being movable to move said projections out of said lock and to permit upward movement of said sword pipe with said packing out of said housing upon upward rotation of said drive nut to free said sleeve.
2. A rotary drilling apparatus comprising a hollow elbow member having an internal bore for supplying fluid and having an end with at least one projection extending outwardly therefrom, a cleaning head housing having a lock portion opened at one end to receive said elbow with the projection thereon, said lock having an internal groove defined therein in whieh the projection of said elbow is engageable for joining said elbow to said cleaning housing, a hollow sword pipe frictionally carried by said head and having a bore adapted to align with the internal bore of said elbow and extending downwardly from said elbow and said lock portion into said housing, a nut rotatably carried on said housing and being constrained against axial displacement, said nut being threadably connected to said sword pipe andbeing rotatable to displace said sword pipe axially into and out of engagement with said elbow, a rotary drill rod assembly carried by said housing and adapted to surround the lower portion of said sword pipe and including a member having a bore of a size to permit telescopic movement of said sword pipe into and out of said member, packing disposed around said sword pipe, means for compressing said packing to cause it to move into engagement with the interior of said member and for releasing said packing to permit displacement thereof 5 with said sword pipe, said sword pipe being movable by rotation of said nut to permit the upper end to clear said elbow, said elbow being movable to bring the projection thereof out of engagement with the groove of said lock after said sword pipe is moved downwardly to clear the elbow and to permit removal of said sword pipe after said elbow is removed from said lock.
3. A rotary drilling apparatus according to claim 2, wherein said member of said drill rod assembly includes an interior portion defining a ledge, said packing being disposed around said sword pipe and resting on said ledge, said means to compress said packing comprising a clamping nut threadable into said drill rod assembly to compress the packing into engagement with said member.
4. A rotary drilling apparatus according to claim 3, including a groove defined on the lower end of said sword pipe, and a retaining spring disposed in said groove and projecting outwardly from said sword pipe to support said packing thereon.
Reier'enees Cited in the file of this patent UNITED STATES PATENTS 1,948,028 Edwards Feb. 20, 1934 2,472,061 Bloss June 7, 1949 2,764,428 Murphy Sept. 25, 1956 2,867,453 Watts Jan. 6, 1959 2,981,557 Donnell et al Apr. 25, 1961 FOREIGN PATENTS 163,317 Austria June 25, 1949 16,086 Great Britain L July 20, 1904 534,908 Great Britain Mar. 21, 1941 694,230 Great Britain July 15, 1953

Claims (1)

1. A ROTARY DRILLING APPARATUS COMPRISING A HOLLOW ELBOW MEMBER HAVING AN INTERNAL BORE FOR SUPPLYING FLUID AND HAVING AN END WITH PROJECTIONS EXTENDING OUTWARDLY IN OPPOSITE DIRECTIONS, A CLEANING HEAD HOUSING HAVING AN UPPER PORTION WITH A LOCK OPENED AT ONE END TO RECEIVE SAID ELBOW PROJECTIONS, SAID LOCK HAVING AN INTERNAL GROOVE DEFINED THEREIN IN WHICH SAID PROJECTIONS ARE ENGAGEABLE FOR JOINING SAID ELBOW TO SAID HEAD, A HOLLOW SWORD PIPE HAVING A BORE ADAPTED TO ALIGN WITH THE INTERNAL BORE OF SAID ELBOW, SAID ELBOW HAVING A WIDENED DIAMETER PORTION CUT THEREINTO FROM THE END ADJACENT SAID SWORD PIPE TO RECEIVE SAID SWORD PIPE, A RESILIENT RING MEMBER DISPOSED IN SAID WIDENED DIAMETER PORTION AND FRICTIONALLY ENGAGEABLE WITH SAID SWORD PIPE WHEN IT IS INSERTED THEREIN, A ROTARY DRILL ROD ASSEMBLY CARRIED BY SAID HOUSING AND SURROUNDING THE LOWER END OF SAID SWORD PIPE INCLUDING A MEMBER HAVING AN INTERNAL BORE OF GREATER DIAMETER THAN THE EXTERIOR OF SAID SWORD PIPE AND PERMITTING TELESCOPING OF SAID SWORD PIPE DOWNWARDLY THEREIN TO PERMIT THE UPPER END TO CLEAR SAID ELBOW, A GROOVE DEFINED AROUND THE LOWER END OF SAID SWORD PIPE, A SPRING MEMBER DISPOSED IN SAID GROOVE, PACKING DISPOSED AROUND SAID SWORD PIPE AND SUPPORTED ON SAID RING MEMBER, AND CLAMPING NUT ENGAGEABLE WITH SAID DRILL ROD ASSEMBLY AND MOVABLE TO COMPRESS SAID PACKING AGAINST SAID SWORD PIPE AND THE INTERIOR OF SAID DRILL ROD ASSEMBLY MEMBER, MEANS DEFINING A GROOVE AROUND SAID SWORD PIPE IN SAID HOUSING OPENED AT ONE END, A DRIVE NUT OF LESSER DIMENSION THAN SAID GROOVE SUPPORTED THEREON, SAID DRIVE NUT EXTENDING AROUND SAID SWORD PIPE, A SLEEVE AFFIXED TO SAID SWORD PIPE AND FRICTIONALLY COUPLED WITH SAID DRIVE NUT, SAID DRIVE NUT BEING ROTATABLE TO DISPLACE SAID SWORD PIPE AXIALLY, SAID ELBOW BEING MOVABLE TO MOVE SAID PROJECTIONS OUT OF SAID LOCK AND TO PERMIT UPWARD MOVEMENT OF SAID SWORD PIPE WITH SAID PACKING OUT OF SAID HOUSING UPON UPWARD ROTATION OF SAID DRIVE NUT TO FREE SAID SLEEVE.
US34431A 1959-06-10 1960-06-07 Scavenging head assembly for rotary drilling apparatus Expired - Lifetime US3155403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3155403X 1959-06-10

Publications (1)

Publication Number Publication Date
US3155403A true US3155403A (en) 1964-11-03

Family

ID=8087969

Family Applications (1)

Application Number Title Priority Date Filing Date
US34431A Expired - Lifetime US3155403A (en) 1959-06-10 1960-06-07 Scavenging head assembly for rotary drilling apparatus

Country Status (1)

Country Link
US (1) US3155403A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070080501A1 (en) * 2005-09-16 2007-04-12 Bal Seal Engineering Co., Inc. Pressure gradient rotary sealing system
US20080067754A1 (en) * 2006-09-14 2008-03-20 John Schroeder Pressure gradient rotary sealing system with external piston
US20080303223A1 (en) * 2005-11-11 2008-12-11 Georg Fischer Waga N.V. Coupling Device for a Tube
NL2018900B1 (en) * 2017-05-11 2018-11-15 European Found Group B V Drive device, seal for use in a drive device and drilling rig comprising a drive device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190416086A (en) * 1904-07-20 1904-10-13 John Griffin An Improved Connection for Beer Taps, Water Taps, Spirit Taps, Pipe Joints, and the like.
US1948028A (en) * 1931-06-26 1934-02-20 Standard Oil Co Pressure still header and assembling tool
GB534908A (en) * 1938-12-03 1941-03-21 Henri Quinson Improvements in adjustable connectors or unions for coupling conduits and for like purposes
US2472061A (en) * 1946-03-18 1949-06-07 Internat Derrick & Equipment C Rotary swivel for drilling rigs
AT163317B (en) * 1947-12-11 1949-06-25 Mannesmann Trauzl Ag Flushing head for rotary drilling rigs
GB694230A (en) * 1951-01-26 1953-07-15 Nat Supply Co Improvements in wash pipe mounting for swivels
US2764428A (en) * 1951-01-26 1956-09-25 Nat Supply Co Wash pipe mounting for swivels
US2867453A (en) * 1953-11-05 1959-01-06 Gray Tool Co Swivel coupling with inserted section type swivel unit
US2981557A (en) * 1957-02-25 1961-04-25 Mary May King Swivel pipe coupling having a laterally removable packing assembly

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190416086A (en) * 1904-07-20 1904-10-13 John Griffin An Improved Connection for Beer Taps, Water Taps, Spirit Taps, Pipe Joints, and the like.
US1948028A (en) * 1931-06-26 1934-02-20 Standard Oil Co Pressure still header and assembling tool
GB534908A (en) * 1938-12-03 1941-03-21 Henri Quinson Improvements in adjustable connectors or unions for coupling conduits and for like purposes
US2472061A (en) * 1946-03-18 1949-06-07 Internat Derrick & Equipment C Rotary swivel for drilling rigs
AT163317B (en) * 1947-12-11 1949-06-25 Mannesmann Trauzl Ag Flushing head for rotary drilling rigs
GB694230A (en) * 1951-01-26 1953-07-15 Nat Supply Co Improvements in wash pipe mounting for swivels
US2764428A (en) * 1951-01-26 1956-09-25 Nat Supply Co Wash pipe mounting for swivels
US2867453A (en) * 1953-11-05 1959-01-06 Gray Tool Co Swivel coupling with inserted section type swivel unit
US2981557A (en) * 1957-02-25 1961-04-25 Mary May King Swivel pipe coupling having a laterally removable packing assembly

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070080501A1 (en) * 2005-09-16 2007-04-12 Bal Seal Engineering Co., Inc. Pressure gradient rotary sealing system
US20080303223A1 (en) * 2005-11-11 2008-12-11 Georg Fischer Waga N.V. Coupling Device for a Tube
US9334990B2 (en) * 2005-11-11 2016-05-10 Georg Fischer Waga N.V. Coupling device for a tube
US20080067754A1 (en) * 2006-09-14 2008-03-20 John Schroeder Pressure gradient rotary sealing system with external piston
NL2018900B1 (en) * 2017-05-11 2018-11-15 European Found Group B V Drive device, seal for use in a drive device and drilling rig comprising a drive device

Similar Documents

Publication Publication Date Title
US2204586A (en) Safety tool joint
US2610690A (en) Mud box
US5236035A (en) Swivel cementing head with manifold assembly
US2485940A (en) Packing cartridge
US3155403A (en) Scavenging head assembly for rotary drilling apparatus
US3231297A (en) Expansible pipe joint clamp
US2176323A (en) Swivel
US4389760A (en) Well slip unit
US3497244A (en) Swivel with adjustable packing
CN108266146B (en) Quick coring device for petroleum drilling
CN209976502U (en) Quick assembling and disassembling tool for packing of oil pumping unit
US2109031A (en) Full hole casing or tubing head
US4206929A (en) Blow out preventer
RU196757U1 (en) SEALER
US1965907A (en) Gas and oil well equipment
US2211845A (en) Means for equipping wells under pressure
US2178699A (en) Well head
US1637383A (en) Drill-stem clamp
US2981557A (en) Swivel pipe coupling having a laterally removable packing assembly
CN208473737U (en) Water tap for well repair
US2124840A (en) Casing head
US4299416A (en) Swivel with removable packing gland
US4479612A (en) Retractable glycol spray nozzle
US2386841A (en) Well completion apparatus
US3390728A (en) Well pipe spinner