US3196950A - Well tool - Google Patents

Well tool Download PDF

Info

Publication number
US3196950A
US3196950A US280039A US28003963A US3196950A US 3196950 A US3196950 A US 3196950A US 280039 A US280039 A US 280039A US 28003963 A US28003963 A US 28003963A US 3196950 A US3196950 A US 3196950A
Authority
US
United States
Prior art keywords
tubular member
mandrel
slip
spring means
longitudinally
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
US280039A
Inventor
Malvern M Hasha
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US280039A priority Critical patent/US3196950A/en
Application granted granted Critical
Publication of US3196950A publication Critical patent/US3196950A/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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/02—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing

Definitions

  • the present invention relates to an arrangement for locking a device at a predetermined position in a tubular member, and more particularly to an arrangement for preventing ejection of a device from the open end of a tubular member.
  • various operations are performed wherein tools or other mechanisms are lowered into the well bore through a tubular member.
  • the devices are lowered on cables, and in other instances, the devices are merely dropped through the tubular member.
  • the tubular member is open-ended, the device may become lost in the well bore, thereby necessitating a fishing operation to recover the object from the well bore even though it may be lowered on a wireline since if it passes out the lower end of the tubular member, the wireline may become fouled to such an extent to prevent the orderly withdrawal of the device secured thereto.
  • the present invention provides an arrangement whereby this may be quickly and easily accomplished.
  • the present invention provides an arrangement whereby an object may be moved through a pipeline, and its ejection at the other end of the pipeline controlled in a predetermined manner.
  • An object of the present invention is to provide an arrangement for preventing the ejection of a device from the open end of a tubular member.
  • Still another object of the present invention is to pro vide an arrangement whereby a device can be lowered into a well bore and set in a tubular member in the well bore at a predetermined position.
  • Yet a further object of the present invention is to provide an arrangement which may be moved through a tubular member in one direction, the device including means for engaging the tubular member through which the device is moved to thereby prevent further movement of the device, said means being constructed and arranged so that it will remain in nonactivated position as the device is moved through the tubular member in a normal manner.
  • Still another object of the present invention is to provide a locking arrangement whereby a device may be locked in a tubular member immediately prior to its ejection from the open end of the tubular member to thereby position the device in the tubular member or to prevent loss of the device through the open end of the .tubular member.
  • Still a further object of the present invention is to provide a locking arrangement for a device which remains inactive as it moves through a tubular member of predetermined diameter but which locking arrangement functions when a portion of the tubular member is reached 3,195,950 Patented July 27, 1965 will become more readily apparent from a consideration of the following description and drawings wherein:
  • FIG. 1 is a sectional view of a form of the present invention and illustrating the relationship of the components of the invention as it is moved through a tubular member;
  • FIG. 2 is a sectional view similar to FIG. 1 but showing the device in actuated position to prevent further movement through a tubular member;
  • FIG. 3 is a sectional view on the line 33.
  • FIG. 1 of the drawings wherein a tubular member is illustrated at 3.
  • the present invention is referred to generally by the numeral 4 and includes a body 5 which is provided with suitable coupling means such as the threads 6 for securing to a device illustrated in dotted line and represented by the numeral 7.
  • the device 7 may be any tool or mechanism which is moved through the tubular member 3. It can be appreciated that the device 7 may be coupled or connected to the body 5 by any suitable means.
  • the body 5 is formed by the portions 3 and 9 which are spaced longitudinally relative to each other to provide the cavity 9a between the portions 8 and 9.
  • the body portions 8 and 9 are connected by suitable means such as the rods 10. Any suitable number of rods 10 may be employed, and three of such rods are illustrated as being provided in FIG.
  • a mandrel 11 projects beyond the end 12 of the body portion 9 and is adapted to be slidably received in the longitudinally extending bore 13 which extends through the body portion 9 as shown in FIG. 1 of the drawings.
  • the mandrel 11 extends upwardly into the body portion 8 and is shown in the drawings as being telescopicaliy received in the bore 14 of the body portion 8 as shown in the drawings.
  • the mandrel 11 is connected at its forward end to a coupling member 15 by any suitable means such as welding or the like, and bow spring means 16 are connected at one end to the coupling i5 and at the other end to the body portion 9 by any suitable means such as welding or by screws or the like, the bow springs functioning to effect relative longitudinal movement of the mandrel 11 and body portions 8 and 9 in a manner as will be described in greater detail hereinafter.
  • the collar member 15 may be of any suitable form and is shown as being concave at 15a on its lower surface to provide a contact surface.
  • a collar2u is secured on the mandrel 11 in the cavity 9a between the body portions 8 and 9, the collar 20 in turn supporting slip segments 21 thereon.
  • the slip segments are carried on supports 21a, and the supports 21a are secured at one end to the collar 20 by suitable means such as screws or the like as illustrated at 22 whereby the slip segments 21 may be removed from the collar 20 for adjustment of the collar 20 along the mandrel 11 in a manner as will be described in greater detail hereinafter or for repair or replacement of the slip segments 21 as may be necessary.
  • slip segments may be mounted on the collar 20; however, three segments are illustrated in the drawings as being circumferentially spaced of the collar 2th illustrated in FIG. 3 of the drawings.
  • the slip segments 21 are provided with teeth 23 for engaging the wall of the tubular member 3 and preventing further movement of the body 5 through the tubular member 3 in one direction, and to accomplish this, the body portion 8 is provided with a conical surface 25 which is adapted to abut the rear surface 26 of slip segments 21 when the slip segments are moved longitudinally so that the slip segments 21 are thereby urged radially outward and into locking engagement with the inner wall of the tubular member 3.
  • the bow spring means 16 are of suitable longitudinal extent so as to span any coupling recesses which normally occur in the tubular member 3 as the device moves through the tubular member. It can be appreciated that if fluid or liquid is present in the tubular member 3, .suitable means must be provided for enabling escape of the fluid from the bore 14 as the end 11a of the mandrel moves toward the end of the bore 14 in body portion 8, and for this purpose, a fluid escape passage means in the form of opening 30 is provided to prevent a fluid lock from being formed in the tool which would interfere with proper functioning of the tool.
  • FIG. 1 of the drawings the invention is illustrated in its normal running in position in a tubular member, and in this relationship, it can be seen that the bow spring members 16 are held against collapsing to their normal radially expanded position such as that illustrated in FIG. 2 and are of a suitable size so as to fit within the tubular member 3 and when engaged against the inner wall thereof, they are extended and thus held until they collapse to the position shown in FIG. 2.
  • the mandrel 11 is positioned in a predetermined longitudinal relationship relative to the body portions 8 and 9, and this in turn positions the slip segments 23 in a nonactivated position and spaced from the conical surface 25 on the body portion 8.
  • the present invention may be used in tubular members of different diameter.
  • the slips 21 will remain in deactivated position until an enlargement in the tubular member 3 occurs or until the bow springs 16 move out the lower open end of the tubular member as represented by the numeral 35 in FIG. 2.
  • the device is shown in its activated position, and the tubular member 3 is shown as having a lower open end 35 with the bow spring means 16 having moved out the lower end of the tubular member.
  • the bow spring means 16 moves to its normally radially collapsed position, and this causes relative longitudinal movement of the mandrel 11 in the body 5 which moves the slip segments 21 longitudinally and abuts them against the frustro conical surface 25 on body portion 8.
  • the slip segments 21 are urged radially outwardly to engage and grip the inner wall of the tubula member in one direction.
  • the invention 4 and device '7 secured thereto is moved through the tubular member 3 in the direction represented by the arrow designated at 38 in FIG.
  • the present invention has particular utility in the drilling of oil and gas wells where an open-ended tubular member is employed, and devices are lowered thereinto. It can be appreciated that the present invention prevents loss or ejection of tools from an open-ended tubular member and thereby eliminates the necessity of fishing operations which might otherwise occur to recover the objects ejected out the open end of the tubular member.
  • the device 7 may be provided with a fishing neck of any suitable well-known form so that it may be engaged by a grapple, and upon upward movement, the device 4 can be withdrawn from the tubular member 3.
  • FIG. 2 represents an enlargement in dotted line at 40 as being secured in the tubular member 3.
  • the enlargement 40 is of sufficient size to permit the bow spring means 16 to collapse to their radially extended position.
  • the bow spring means 16 upon reaching the enlarged portion 40 of the tubular member, would collapse in a manner as described hereinabove and function to set the tool at the predetermined location.
  • the invention 4 could b propelled or moved through a pipeline or other conduit to perform a desired function therein, and the positioning of an object in a conduit at a selected location or its ejection from the pipeline could be controlled by the present invention as described above.
  • the present invention relates to a safety device, and more particularly to a device which prevents improper ejection of tools from an open-end tubular member or may be used to position a tool in a tubular member at a selected location.
  • An arrangement for preventing the ejection of a device from a tubular member comprising,
  • engaging means connected to said mandrel and adapted on longitudinal relative movement between said mandrel and body to engage said body to be urged outwardly to engage the tubular member and prevent further movement of said body thercthrough, and
  • said spring means adapted to collapse radially upon moving out of the tubular member whereupon said mandrel is moved longitudinally with respect to said body whereby said engaging means locks said body against ejection from the tubular member.
  • An arrangement for looking a device in a tubular member at a predetermined position comprising,
  • said spring means adapted to engage the inner wall of the tubular member as said spring means moves through the tubular member whereby said spring means is restrained from moving said mandrel and thereby urging said stop means into engagement with the tubular member
  • a tool for locking in a tubular member at a predetermined position comprising,
  • said bow spring means adapted to engage the wall of the tubular member to maintain said mandrel and body in a predetermined longitudinal relation as they move through the tubular member
  • slip means mounted on said mandrel and spaced longitudinally from said forward body end
  • said body having a recess to receive said slip means and a tapered surface means against which said slip means may be moved to urge said slip means into engagement with the tubular member and thereby lock said body against further movement in the tubular member in one direction, and
  • a tool for locking in a tubular member at a predetermined position comprising,
  • slip means mounted on said mandrel and spaced longitudinally from said forward body end
  • said body having a recess to receive said slip means and a tapered surface means against which said slip means may be moved to urge said slip means into engagement with the tubular member and thereby lock said body against further movement in the tubular member in one direction,
  • a tool for locking in a tubular member at a predetermined position comprising,
  • said bow spring means adapted to engage the wall of the tubular member to maintain said mandrel and body in a predetermined longitudinal relation as they move through the tubular member
  • slip means mounted on said mandrel and spaced longitudinally from said forward body end
  • said body having a recess to receive said slip means and a tapered surface means against which said slip means may be moved to urge said slip means into engagement with the tubular member and thereby lock said body against further movement in the tubular member in one direction,
  • a tool for locking in a tubular member at a predetermined position comprising,
  • said bow spring means adapted to engage the wall of the tubular member to maintain said mandrel and body in a predetermined longitudinal relation as they move through the tubular member
  • slip means mounted on said mandrel and spaced longitudinally from said forward body end
  • said body having a recess to receive said slip means and a tapered surface means against which said slip means may be moved to urge said slip means into engagement with the tubular member and thereby lock said body against further movement in the tubular member in one direction,

Landscapes

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

Description

M M. HASHA July 27, 1965 WELL TOOL Filed May 15, 1963 INVENTOR. BYMV M United States Patent 3,196,951 WELL TGGL Malvern M. Hasha, Lalre Qharles, La. (414 outh Coast Bldg, Houston, Terr.) Filed May 13, 1963, Ser. No. 230,039 6 Ciairns. (Cl. res-132) The present invention relates to an arrangement for locking a device at a predetermined position in a tubular member, and more particularly to an arrangement for preventing ejection of a device from the open end of a tubular member.
In the drilling of oil and gas wells, various operations are performed wherein tools or other mechanisms are lowered into the well bore through a tubular member. In some instances, the devices are lowered on cables, and in other instances, the devices are merely dropped through the tubular member. Where the tubular member is open-ended, the device may become lost in the well bore, thereby necessitating a fishing operation to recover the object from the well bore even though it may be lowered on a wireline since if it passes out the lower end of the tubular member, the wireline may become fouled to such an extent to prevent the orderly withdrawal of the device secured thereto.
Also, in drilling oil and gas wells, it may desirable to position a packer or other well tool in a tubular member at a predetermined position. The present invention provides an arrangement whereby this may be quickly and easily accomplished.
It is desirable at times to move an object through a pipeline for the purpose of separating products that may be conveyed through the pipeline or for other purposes such as cleaning or coating the pipeline. The present invention provides an arrangement whereby an object may be moved through a pipeline, and its ejection at the other end of the pipeline controlled in a predetermined manner.
An object of the present invention is to provide an arrangement for preventing the ejection of a device from the open end of a tubular member.
Still another object of the present invention is to pro vide an arrangement whereby a device can be lowered into a well bore and set in a tubular member in the well bore at a predetermined position.
Yet a further object of the present invention is to provide an arrangement which may be moved through a tubular member in one direction, the device including means for engaging the tubular member through which the device is moved to thereby prevent further movement of the device, said means being constructed and arranged so that it will remain in nonactivated position as the device is moved through the tubular member in a normal manner.
Still another object of the present invention is to provide a locking arrangement whereby a device may be locked in a tubular member immediately prior to its ejection from the open end of the tubular member to thereby position the device in the tubular member or to prevent loss of the device through the open end of the .tubular member.
Still a further object of the present invention is to provide a locking arrangement for a device which remains inactive as it moves through a tubular member of predetermined diameter but which locking arrangement functions when a portion of the tubular member is reached 3,195,950 Patented July 27, 1965 will become more readily apparent from a consideration of the following description and drawings wherein:
FIG. 1 is a sectional view of a form of the present invention and illustrating the relationship of the components of the invention as it is moved through a tubular member;
FIG. 2 is a sectional view similar to FIG. 1 but showing the device in actuated position to prevent further movement through a tubular member; and
FIG. 3 is a sectional view on the line 33.
Attention is first directed to FIG. 1 of the drawings wherein a tubular member is illustrated at 3. The present invention is referred to generally by the numeral 4 and includes a body 5 which is provided with suitable coupling means such as the threads 6 for securing to a device illustrated in dotted line and represented by the numeral 7. The device 7 may be any tool or mechanism which is moved through the tubular member 3. It can be appreciated that the device 7 may be coupled or connected to the body 5 by any suitable means. The body 5 is formed by the portions 3 and 9 which are spaced longitudinally relative to each other to provide the cavity 9a between the portions 8 and 9. The body portions 8 and 9 are connected by suitable means such as the rods 10. Any suitable number of rods 10 may be employed, and three of such rods are illustrated as being provided in FIG. 3 and are shown as being circumferentially spaced on the portions 8 and 9 in any suitable manner such as that shown in FIG. 3 of the drawings. The rods 10 may be secured to the body portions 8 and 9 by any suitable means such as welding or by screws or the like. A mandrel 11 projects beyond the end 12 of the body portion 9 and is adapted to be slidably received in the longitudinally extending bore 13 which extends through the body portion 9 as shown in FIG. 1 of the drawings. The mandrel 11 extends upwardly into the body portion 8 and is shown in the drawings as being telescopicaliy received in the bore 14 of the body portion 8 as shown in the drawings.
The mandrel 11 is connected at its forward end to a coupling member 15 by any suitable means such as welding or the like, and bow spring means 16 are connected at one end to the coupling i5 and at the other end to the body portion 9 by any suitable means such as welding or by screws or the like, the bow springs functioning to effect relative longitudinal movement of the mandrel 11 and body portions 8 and 9 in a manner as will be described in greater detail hereinafter. The collar member 15 may be of any suitable form and is shown as being concave at 15a on its lower surface to provide a contact surface.
A collar2u is secured on the mandrel 11 in the cavity 9a between the body portions 8 and 9, the collar 20 in turn supporting slip segments 21 thereon. The slip segments are carried on supports 21a, and the supports 21a are secured at one end to the collar 20 by suitable means such as screws or the like as illustrated at 22 whereby the slip segments 21 may be removed from the collar 20 for adjustment of the collar 20 along the mandrel 11 in a manner as will be described in greater detail hereinafter or for repair or replacement of the slip segments 21 as may be necessary.
Any suitable number of slip segments may be mounted on the collar 20; however, three segments are illustrated in the drawings as being circumferentially spaced of the collar 2th illustrated in FIG. 3 of the drawings.
The slip segments 21 are provided with teeth 23 for engaging the wall of the tubular member 3 and preventing further movement of the body 5 through the tubular member 3 in one direction, and to accomplish this, the body portion 8 is provided with a conical surface 25 which is adapted to abut the rear surface 26 of slip segments 21 when the slip segments are moved longitudinally so that the slip segments 21 are thereby urged radially outward and into locking engagement with the inner wall of the tubular member 3.
The bow spring means 16 are of suitable longitudinal extent so as to span any coupling recesses which normally occur in the tubular member 3 as the device moves through the tubular member. It can be appreciated that if fluid or liquid is present in the tubular member 3, .suitable means must be provided for enabling escape of the fluid from the bore 14 as the end 11a of the mandrel moves toward the end of the bore 14 in body portion 8, and for this purpose, a fluid escape passage means in the form of opening 30 is provided to prevent a fluid lock from being formed in the tool which would interfere with proper functioning of the tool.
In FIG. 1 of the drawings, the invention is illustrated in its normal running in position in a tubular member, and in this relationship, it can be seen that the bow spring members 16 are held against collapsing to their normal radially expanded position such as that illustrated in FIG. 2 and are of a suitable size so as to fit within the tubular member 3 and when engaged against the inner wall thereof, they are extended and thus held until they collapse to the position shown in FIG. 2. When the bow spring members 16 are restrained against collapsing to their normally radially expanded position, the mandrel 11 is positioned in a predetermined longitudinal relationship relative to the body portions 8 and 9, and this in turn positions the slip segments 23 in a nonactivated position and spaced from the conical surface 25 on the body portion 8.
It can be appreciated that the present invention may be used in tubular members of different diameter. In order to assure proper actuation of the slip segments regardless of the size pipe the present invention may be used in, it may be necessary to adjust the collar longitudinally of the mandrel 11 immediately upon inserting the device into the tubular member 3. This may be accomplished by first depressing the bow spring means 16 so that they extend in length and reduce in diameter whereby the device may be inserted into the tubular member 3. The device is then held in a position so as to expose the collar 20 and slip segments 21 whereupon the collar 20 may be adjusted longitudinally of the mandrel 11 so that when the bow springs 16 are engaged with the inner wall of the tubular member 3, the slip segments 21 will be adjacent, but slightly spaced, from the conical surface 25. In order to accomplish this adjust ment, the coupling 20 may be secured on the mandrel 11 in any suitable manner, and one such form consists of providing threads 32 which extend longitudinally of the tubular member for a distance which threads are adapted to engage the threaded lock collar 33 that is integrally formed on the upper end of the collar 26. The slip segments 21 may be removed, and the collar 20 and stop collar 23 rotated along the mandrel 11 while the bow spring means 16 is engaged with the wall of the tubular member 3 to position the collar longitudinally of the mandrel 11 in cavity 9a so that when the slip segments are secured on the collar 20, their surface 26 will be slightly spaced from the conical surface on the body portion 8. Thus, when the invention 4 is moved through the tubular member 3, the slips 21 will remain in deactivated position until an enlargement in the tubular member 3 occurs or until the bow springs 16 move out the lower open end of the tubular member as represented by the numeral 35 in FIG. 2.
In FIG. 2, the device is shown in its activated position, and the tubular member 3 is shown as having a lower open end 35 with the bow spring means 16 having moved out the lower end of the tubular member. When this occurs, the bow spring means 16 moves to its normally radially collapsed position, and this causes relative longitudinal movement of the mandrel 11 in the body 5 which moves the slip segments 21 longitudinally and abuts them against the frustro conical surface 25 on body portion 8. When this occurs, the slip segments 21 are urged radially outwardly to engage and grip the inner wall of the tubula member in one direction. Thus, as the invention 4 and device '7 secured thereto is moved through the tubular member 3 in the direction represented by the arrow designated at 38 in FIG. 2, such movement will continue until the bow spring means 16 protrudes from the lower open end 35 of the tubular member 3 whereupon the slip segments 21 are activated and thereby prevent further movement of the invention 4 and device 7 secured thereto through the tubular member 3 in the direction represented by the arrow 38.
The present invention has particular utility in the drilling of oil and gas wells where an open-ended tubular member is employed, and devices are lowered thereinto. It can be appreciated that the present invention prevents loss or ejection of tools from an open-ended tubular member and thereby eliminates the necessity of fishing operations which might otherwise occur to recover the objects ejected out the open end of the tubular member.
The device 7 may be provided with a fishing neck of any suitable well-known form so that it may be engaged by a grapple, and upon upward movement, the device 4 can be withdrawn from the tubular member 3.
Also, it can be appreciated that the present invention could be employed to position tools or objects at a selected location in a tubular member by providing an enlargement at the lower end of the tubular member or at the level where it is desired to position the tool. FIG. 2 represents an enlargement in dotted line at 40 as being secured in the tubular member 3. The enlargement 40 is of sufficient size to permit the bow spring means 16 to collapse to their radially extended position. The bow spring means 16 upon reaching the enlarged portion 40 of the tubular member, would collapse in a manner as described hereinabove and function to set the tool at the predetermined location. Also, the invention 4 could b propelled or moved through a pipeline or other conduit to perform a desired function therein, and the positioning of an object in a conduit at a selected location or its ejection from the pipeline could be controlled by the present invention as described above.
Broadly, the present invention relates to a safety device, and more particularly to a device which prevents improper ejection of tools from an open-end tubular member or may be used to position a tool in a tubular member at a selected location.
What is claimed is:
1. An arrangement for preventing the ejection of a device from a tubular member comprising,
(a) a body adapted for movement through a tubular member,
(b) a mandrel movable longitudinally relative to said body,
(c) collapsible spring means secured to said body and to said mandrel, said spring means engaging the wall of the tubular member to restrain said spring means against collapsing and thereby retain said mandrel in predetermined longitudinal relationship with respect to said body,
(d) engaging means connected to said mandrel and adapted on longitudinal relative movement between said mandrel and body to engage said body to be urged outwardly to engage the tubular member and prevent further movement of said body thercthrough, and
(e) said spring means adapted to collapse radially upon moving out of the tubular member whereupon said mandrel is moved longitudinally with respect to said body whereby said engaging means locks said body against ejection from the tubular member.
2. An arrangement for looking a device in a tubular member at a predetermined position comprising,
(a) a body adapted for movement through a tubular member,
(b) a mandrel movable longitudinally relative to said body,
(c) means supported by said mandrel and movable to engage the tubular member and stop further movement of said body in one direction through the tubular member,
(d) spring means carried by said body and engaged with said mandrel and tending to urge said stop means to engagement with the tubular member,
(e) said spring means adapted to engage the inner wall of the tubular member as said spring means moves through the tubular member whereby said spring means is restrained from moving said mandrel and thereby urging said stop means into engagement with the tubular member,
(f) means for initially adjusting and positioning said stop means on said mandrel in a nonengaging position with the tubular member when said spring means is engaged with the wall of the tubular mem her, and
(g) said spring means upon disengagement with the wall of the tubular member urging said stop means into engagement with the tubular member to stop further movement of said body through the tubular member in one direction.
3. A tool for locking in a tubular member at a predetermined position comprising,
(a) a body adapted for movement through the tubular member,
(b) a mandrel projecting from the forward end of said body and movable longitudinally of said body,
(c) bow spring means connecting between said forward body end and said mandrel for effecting relative longitudinal movement between said mandrel and body,
(d) said bow spring means adapted to engage the wall of the tubular member to maintain said mandrel and body in a predetermined longitudinal relation as they move through the tubular member,
(e) slip means mounted on said mandrel and spaced longitudinally from said forward body end,
(f) said body having a recess to receive said slip means and a tapered surface means against which said slip means may be moved to urge said slip means into engagement with the tubular member and thereby lock said body against further movement in the tubular member in one direction, and
(g) said mandrel movable longitudinally of said body by radial collapsing of said bow spring means upon their release from engagement with the tubular member wall to contact said slip means on said tapered surface means and thereby move said slip means into locking engagement with the tubular member.
4. A tool for locking in a tubular member at a predetermined position comprising,
(a) a body adapted for movement through the tubular member,
(b) a mandrel projecting from the forward end of said body and movable longitudinally of said body,
(c) bow spring means connecting between said forward body end and said mandrel for effecting relative longitudinal movement between said mandrel and body,
(d) said bow spring means adapted to engage the wall of the tubular member to maintain said mandrel and body in a predetermined longitudinal relation as they move through the tubular'member,
(e) slip means mounted on said mandrel and spaced longitudinally from said forward body end,
(f) said body having a recess to receive said slip means and a tapered surface means against which said slip means may be moved to urge said slip means into engagement with the tubular member and thereby lock said body against further movement in the tubular member in one direction,
(g) said mandrel movable longitudinally of said body upon collapsing of said bow spring means when released from engagement with the tubular member wall to contact said slip means on said tapered surface means and thereby move said slip means into locking engagement with the tubular member, and
(h) means for adjusting said slip means longitudinally of said mandrel whereby said slip means may be adjusted relative to said tapered surface means so that when said bow spring means are in position for engaging the inner wall of the tubular member said slip means are spaced from said tapered surface means.
5. A tool for locking in a tubular member at a predetermined position comprising,
(a) a body adapted for movement through the tubular member,
(b) a mandrel projecting from the forward end of said body and movable longitudinally of said body,
(c) bow spring means connecting between said forward body end and said mandrel for effecting relative longitudinal movement between said mandrel and body,
(d) said bow spring means adapted to engage the wall of the tubular member to maintain said mandrel and body in a predetermined longitudinal relation as they move through the tubular member,
(e) slip means mounted on said mandrel and spaced longitudinally from said forward body end,
(f) said body having a recess to receive said slip means and a tapered surface means against which said slip means may be moved to urge said slip means into engagement with the tubular member and thereby lock said body against further movement in the tubular member in one direction,
(g) said mandrel movable longitudinally of said body by collapsing said bow spring means upon their release from engagement with the tubular member wall to contact said slip means on said tapered surface means and thereby move said slip means into locking engagement with the tubular member, and
(h) said mandrel telescopically fitting in said body and there being fluid escape passage means between the end of said mandrel and said body whereby fluid may discharge from said body as said mandrel telescopes thereinto.
5. A tool for locking in a tubular member at a predetermined position comprising,
(a) a body adapted for movement through the tubular member,
(b) a mandrel projecting from the forward end of said body and movable longitudinally of said body,
(c) bow spring means connecting between said forward body end and said mandrel for effecting relative longitudinal movement between said mandrel and body,
(d) said bow spring means adapted to engage the wall of the tubular member to maintain said mandrel and body in a predetermined longitudinal relation as they move through the tubular member,
(e) slip means mounted on said mandrel and spaced longitudinally from said forward body end,
(f) said body having a recess to receive said slip means and a tapered surface means against which said slip means may be moved to urge said slip means into engagement with the tubular member and thereby lock said body against further movement in the tubular member in one direction,
(g) said mandrel movable longitudinally of said body by collapsing said bow spring means upon their release from engagement with the tubular member wall to contact said slip means on said tapered surface means and thereby move said slip means into locking engagement with the tubular member,
(h) means for adjusting said slip means longitudinally (i) said mandrel telescopically fitting in said body and 8 there being fluid escape passage means between the end of said mandrel and said body whereby fluid may discharge from said body as said mandrel telescopes thereinto.
References Cited by the Examiner UNITED STATES PATENTS 1,670,964 5/28 Hay et a1. 166-132 1,690,536 11/28 Hartman 166137 X 2,568,005 9/51 Holder et a1. 166215 CHARLES E. OCONNELL, Primary Examiner.

Claims (1)

1. AN ARRANGEMENT FOR PREVENTING THE EJECTION OF A DEVICE FROM A TUBULAR MEMBER COMPRISING, (A) A BODY ADAPTED FOR MOVEMENT THROUGH A TUBULAR MEMBER, (B) A MANDREL MOVABLE LONGITUDINALLY RELATIVE TO SAID BODY, (C) COLLAPSIBLE SPRING MEANS SECURED TO SAID BODY AND TO SAID MANDREL, SAID SPRING MEANS ENGAGING THE WALL OF THE TUBULAR MEMBER TO RESTRAIN SAID SPRING MEANS AGAINST COLLAPSING AND THEREBY RETAIN SAID MANDREL IN PREDETERMINED LONGITUDINAL RELATIONSHIP WITH RESPECT TO SAID BODY, (D) ENGAGING MEANS CONNECTED TO SAID MANDREL AND ADAPTED ON LONGITUDINAL RELATIVE MOVEMENT BETWEEN
US280039A 1963-05-13 1963-05-13 Well tool Expired - Lifetime US3196950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US280039A US3196950A (en) 1963-05-13 1963-05-13 Well tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US280039A US3196950A (en) 1963-05-13 1963-05-13 Well tool

Publications (1)

Publication Number Publication Date
US3196950A true US3196950A (en) 1965-07-27

Family

ID=23071378

Family Applications (1)

Application Number Title Priority Date Filing Date
US280039A Expired - Lifetime US3196950A (en) 1963-05-13 1963-05-13 Well tool

Country Status (1)

Country Link
US (1) US3196950A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110057647A1 (en) * 2000-05-07 2011-03-10 Cameron International Corporation Apparatus Detecting Relative Body Movement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1670964A (en) * 1927-05-12 1928-05-22 Charles W Hay Heaving plug
US1690536A (en) * 1927-06-20 1928-11-06 Stephen L Hartman Plug for wells
US2568005A (en) * 1950-03-08 1951-09-18 Chester M Holder Drill pipe attachment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1670964A (en) * 1927-05-12 1928-05-22 Charles W Hay Heaving plug
US1690536A (en) * 1927-06-20 1928-11-06 Stephen L Hartman Plug for wells
US2568005A (en) * 1950-03-08 1951-09-18 Chester M Holder Drill pipe attachment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110057647A1 (en) * 2000-05-07 2011-03-10 Cameron International Corporation Apparatus Detecting Relative Body Movement
US7956605B2 (en) * 2000-05-07 2011-06-07 Cameron International Corporation Apparatus detecting relative body movement

Similar Documents

Publication Publication Date Title
US4047568A (en) Method and apparatus for cutting and retrieving casing from a well bore
US2358466A (en) Well tool
US3405763A (en) Well completion apparatus and method
US4601492A (en) Releasable coupling
US3335802A (en) Subsurface shifting apparatus
US3393743A (en) Retrievable packer for wells
US2991834A (en) Cutting tool
US3207222A (en) Locking device and running tool therefor
NO20161518A1 (en) Slip release assembly with cone undermining feature
US1653547A (en) Spear for oil-well casings or tubing
US3108637A (en) Packer retrieving tool
US4595054A (en) Well lock having retractable no-go dogs
US3752231A (en) Apparatus for installing and removing flow control units
US3196950A (en) Well tool
US3020958A (en) Well tool
US3424477A (en) Well apparatus
CA2638731C (en) Hydraulic running tool assembly and method of its use
US20180066487A1 (en) Locking Mandrel and Running Tool Combination
US2085997A (en) Packer
US2553985A (en) Fishing tool
US3100532A (en) Well tools for plugging a well flow conductor
US9637992B2 (en) Downhole spear having mechanical release mechanism for use in wellbores and methods of using same
US3631924A (en) Retrievable well packer
US2719051A (en) Oil well fishing tool
US2821363A (en) Key seat cutter