US3298437A - Actuator device for well tool - Google Patents

Actuator device for well tool Download PDF

Info

Publication number
US3298437A
US3298437A US390687A US39068764A US3298437A US 3298437 A US3298437 A US 3298437A US 390687 A US390687 A US 390687A US 39068764 A US39068764 A US 39068764A US 3298437 A US3298437 A US 3298437A
Authority
US
United States
Prior art keywords
piston
cylinder member
end wall
post
sleeve
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
US390687A
Inventor
Martin B Conrad
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 US390687A priority Critical patent/US3298437A/en
Application granted granted Critical
Publication of US3298437A publication Critical patent/US3298437A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
    • E21B23/06—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for setting packers
    • E21B23/065—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for setting packers setting tool actuated by explosion or gas generating means
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
    • E21B33/1293—Packers; Plugs with mechanical slips for hooking into the casing with means for anchoring against downward and upward movement

Definitions

  • the objects of the present invention are to provide a setting tool for a bridge plug in a well, the setting tool being energized by high-pressure gas obtained, for example, by ignition of a powder charge within the setting tool. Another object is to provide a device of this type of short over-all length, and yet having adequate stroke to actuate well tools of various sizes and types. Another object is to provide a device of this type which is hydrostatically balanced so that it operates equally well in a dry hole or submerged in liquid to any depth in the well. Another object is to provide a device of this type in which recoil after firing is minimized or substantially eliminated. A related object is to provide a device of the type described which is economical to manufacture, having relatively few parts and reliable in operation.
  • FIGURE 1 shows a preferred embodiment of this invention in longitudinal sectional elevation, FIGURE 1b comprising a continuation of the lower end of FIGURE 1a, and FIGURE 10 comprising a continuation of the lower end of FIGURE 112.
  • FIGURE 1 shows the parts of the actuator for setting tool and the parts of the bridge plug in initial position prior to firing.
  • FIGURE 2 is a view similar to FIGURE 1, showing the parts in position after firing and showing the bridge plug set within the casing.
  • FIGURE 2b is a continuation of the lower end of FIGURE 2a
  • FIGURE 20 is a continuation of the lower end of FIGURE 2b.
  • the actuator device generally designated 10 comprises a setting tool adapted to be lowered into a well casing 11 on a wire line 12.
  • a bridge plug assembly 13 of conventional design is attached to the lower end of the actuator 10 by means of the frangible connector 14 and spacer 15.
  • the setting tool 10 and bridge plug 13 are lowered as a unit into the well casing 11 on the wire line 12, and when the desired depth is reached, the power charge 16 is ignited electrically to cause the actuator to expand the bridge plug 13 into contact with the casing 11 and to break the frangible connection 14, as shown in FIG- URE 2c.
  • the actuator or setting tool assembly 10 may then be withdrawn from the well casing on the wire line 12, leaving the bridge plug 13 in place in the casing.
  • the actuator or setting tool 10 includes a cylinder member 20 provided with an axial cylindrical bore 21.
  • a piston 22 having seal rings 23 is slidably mounted within the bore 21.
  • a downward-extending piston rod 25 is fixed to the piston and extends through the central axial opening 26 in the lower end wall 27 of the cylinder member 20. Seal rings 28 mounted in the opening 26 engage the piston rod 25.
  • a post 30 is fixed to the piston 22 and extends axially upward therefrom and projects slidably through an opening 32 in the annular plug 33. Seal rings 34 in the opening 32 contact the post 30.
  • the annular plug 33 is formed on the lower end of the axial concentric sleeve 35, which is provided on the lower end of the body 37. Threads 38 connect the upper end of the cylinder member 20 to the body 37. Seal rings 39 on the body engage the cylinder member 20 to prevent leakage. A seal ring 40 on the annular plug also engages the cylinder member 20 to prevent leakage.
  • the annular plug 33 forms the upper end wall of a chamber 42 within the cylindrical bore 21 of the cylinder member 20.
  • the end wall 27 forms the lower end wall of the chamber 42.
  • An axial-extending central tube 45 is fixed to the upper end of the post 30 and extends through the space 46 within the sleeve 35 and between the annular plug 33 and the wall 47 of the body 37.
  • a central opening 48 in the wall 47 slidably receives the tube 45, and seal rings 49 in the opening 48 engage the outer surface of the tube 45.
  • the walls of the body 37 define a closed pocket 51 adapted to receive high-pressure gas from ignition of the powder charge 16.
  • the ignition system for the powder charge 16 is conventional and is operated by electrical energy transmitted through an electric lead wire 52 in the cable 12.
  • the lower end of the piston rod 25 is connected by coupling 60 to the frangible pin 14 having a weakened section 61.
  • the bridge plug assembly 13 has a mandrel 62 connected to the lower end of the frangible pin 14.
  • the usual expansible elastomeric sleeve 63 is mounted on the mandrel 13 and is caused to expand outward into engagement with the casing 11 when the mandrel 62 moves upward with respect to the ring 64.
  • the usual cones 65 are provided at the opposite ends of the expansible sleeve 63, and wedge slips 66 co-operate with the cones 65 to hold the sleeve 63 in expanded position, as shown in FIGURE 20.
  • the slips 66 may be initially retained in place by frangible bands 67 or by other conventional means.
  • the ring 64 is engaged by the lower end of the spacer 15 which is connected by threads 68 to the lower end of the cylinder member 20.
  • the upper end of the space 46 is vented through ports 70 and 71 to the space outside the actuator tool 10 and within the casing 11. Accordingly, any hydrostatic head of liquid in the casing acts through the ports 71 and 70 and through the space 46 on the exposed upper end of the post 30. Also, the piston rod 25 below the seal rings 28 is exposed to the same hydrostatic pressure through the ports 72 in the upper end of the spacer 15.
  • the relative diameters of the post 30, tube 45, and piston rod 25 are so chosen that the effective area of the piston rod 25 is equal to the effective area of the post 30, minus the efi'ective area of the tube 45. The result is that the piston is hydrostatically balanced regardless of the depth of submergence of the actuator in liquid within the well casing 11.
  • An acuator device for a well tool comprising in combination: a cylinder member having a bore and having upper and lower end walls defining a chamber within said bore, each end wall having an axial opening, a piston slidably mounted within said bore, a piston rod fixed to the piston and projecting slidably through the opening in the lower end wall, a post fixed to the piston and projecting slidably through the opening in the upper end wall, an axial sleeve fixed to the upper end wall forming a closed cavity within the cylinder member, ports in the end wall connecting said cavity to said chamber, the sleeve having interior space into which said post may project, port means venting said interior space to the exterior of said actuator device, walls forming a pocket above the sleeve to receive a pressure-generating charge, and means forming a passage connecting said pocket to the chamber below the piston.
  • An actuator device for a well tool comprising in combination: a cylinder member having a bore and having upper and lower end walls defining a chamber within said bore, each end wall having an axial opening, a piston slidably mounted within said bore, the chamber above the piston containing oil, a piston rod fixed to the piston and projecting slidably through the opening in the lower end Wall, a post fixed to the piston and projecting slidably through the opening in the upper end wall, an axial sleeve fixed to the upper end wall forming a closed cavity within the cylinder member, said closed cavity containing atmospheric air, ports in the end wall connecting said cavity to said chamber, the sleeve having interior space into which said post may project, port means venting said interior space to the exterior of said actuator device, walls forming a pocket above the sleeve to receive a pressure-generating charge, axially slidable telescoping parts including a tube extending between said post and said pocket, and passage means in the post and piston connecting the chamber below the piston
  • An actuator device for a well tool comprising in combination: a cylinder member having a bore and having upper and lower end walls defining a chamber within said bore, each end wall having an axial opening, a piston slidably mounted within said bore, a piston rod fixed to the piston and projecting slidably through the opening in the lower end wall, a post fixed to the piston and projecting slidably through the opening in the upper end wall, an axial sleeve fixed to the upper end wall forming a closed cavity Within the cylinder member, ports in the end wall connecting said cavity to said chamber, the sleeve having interior space into which said post may project, port means venting said interior space to the exterior of said actuator device for balancing said piston against hydrostatic pressure of fluid in which the actuator device may be immersed, Walls forming a pocket above the sleeve to receive a pressure-generating charge, axially slidable telescoping parts including a tube extending between said post and said pocket, and passage means in the post and piston connecting
  • An actuator device for a well tool comprising in combination: a cylinder member having a bore and having upper and lower end walls defining a chamber within said bore, each end wall having an axial opening, a piston slidably mounted within said bore, a piston rod fixed to the piston and projecting slidably through the opening in the lower end wall, a post fixed to the piston and projecting slidably through the opening in the upper end wall, an axial sleeve fixed to the upper end wall forming a closed cavity within the cylinder member, ports in the end wall connecting said cavity to said chamber, the sleeve having interior space into which said post may project, port means venting said interior space to the exterior of said actuator device for balancing said piston against hydrostatic pressure of fluid in which the actuator device may be immersed, walls forming a pocket above the sleeve to receive a pressure-generating charge, one of the walls having an opening, a tube fixed coaxially to said post and slidably received in the latter said opening, and passage means in the
  • An actuator device for a well tool comprising in combination: a cylinder member having an axial bore, a piston slidable axially within said bore and having a piston rod fixed thereto and projecting downward therefrom, the cylinder member having an end wall provided with an opening slidably receiving said piston rod, the piston also having a concentric cylindrical post fixed thereto and projecting upward therefrom, a tubular body fixed to the cylinder member and having an axial sleeve extending into said cylinder member and having an annular plug sealed within the cylinder member above said piston, said annular plug having an opening slidably receiving said post, the space within the cylindrical bore between the end wall and the annular plug comprising a chamber, said sleeve and said cylinder member co-operating to form a closed cavity, ports in said annular plu-g connecting said closed cavity to the chamber above said piston, ports in the body member venting the space within the sleeve to the exterior of the actuator device, the body having walls forming a pocket above the sle,
  • An actuator device for a well too] comprising in combination: a cylinder member having an axial bore, a piston slidable axially Within said bore and having a piston rod fixed thereto and projecting downward therefrom, the cylinder member having an end wall provided with an opening slidably receiving said piston rod, the piston also having a concentric cylindrical post fixed thereto and projecting upward therefrom, a tubular body fixed to the cylinder member and having an axial sleeve extending into said cylinder member and having an annular plug sealed within the cylinder member above said piston, said annular plug having an opening slidably receiving said post, the space within the cylindrical bore between the end wall and the annular plug comprising a chamber, said sleeve and said cylinder member co-operating to form a closed cavity, ports in said annular plug connecting said closed cavity to the chamber above said piston, ports venting the space within the sleeve to the exterior of the actuator device for balancing said piston against hydrostatic pressure of fluid in which the actuator device may be immersed
  • an actuator device comprising, in combination: a cylinder member having an axial bore, means for connecting the cylinder member to one of the well tool parts, a piston slidable axially within said bore of said cylinder member and having a piston rod fixed thereto and projecting downward therefrom, means for connecting said piston rod to the other of the well tool parts, the cylinder member having an end wall provided with an opening slidably receiving said piston rod, the piston also having a concentric cylindrical post fixed thereto and projecting upward therefrom, a tubular body fixed to the cylinder member and having an axial sleeve extending into said cylinder member and having an annular plug sealed within the cylinder member above said piston, said plug having an opening slidably receiving said post, the space within the cylindrical bore between the end wall and the annular plug comprising a chamber, said sleeve and said cylinder member cooperating to form a closed cavity, ports in said annular plug connecting said closed cavity to the chamber
  • an actuator device comprising, in combination: a cylinder member having an axial bore, means for connecting the cylinder member to one of the well tool parts, a piston slidable axially within said bore of said cylinder member and having a piston rod fixed thereto and projecting downward therefrom, means for connecting said piston rod to the other of the well tool parts, the cylinder member having an end wall provided with an opening slidably receiving said piston rod, the piston also having a concentric cylindrical post fixed thereto and projecting upward therefrom, a tubular body fixed to the cylinder member and having an axial sleeve extending into said cylinder member and having an annular plu-g sealed within the cylinder member above said piston, said annular plug having an opening slidably receiving said post, the space within the cylindrical bore between the end wall and the annular plug comprising a chamber, said sleeve and said cylinder member co-operating to form a closed cavity, ports in said annular plug connecting

Description

Jan. 17,1967
ACTUATOR DEVICE FOR WELL TOOL Filed Aug. 19. 1964 M. B. CONRAD 3,298,437
2 Sheets-Sheet l F25. Jfi.
714,457 a. Cd/V240 INVENTOR.
I BY
Jan. 17, 1967 M. B- CONRAD 3,
I ACTUATOR DEVICE FOR WELL TOOL Filed Aug. 19, 1964 Z-Sheets-Sheet 2 Y 2 6122;. 2 2%. 2;: F16. Z6,
MAZf/A/ 5 66/14649 INVENTOR.
United States Patent 3,298,437 ACTUATOR DEVICE FOR WELL TOOL Martin B. Conrad, Downey, Calif. (R0. Box 568, Carpinteria, Calif. 93013) Filed Aug. 19, 1964, Ser. No. 390,687 9 Claims. (Cl. 166-63) This invention relates to an actuator for a well tool and is particularly directed to a setting tool for a bridge plug.
The objects of the present invention are to provide a setting tool for a bridge plug in a well, the setting tool being energized by high-pressure gas obtained, for example, by ignition of a powder charge within the setting tool. Another object is to provide a device of this type of short over-all length, and yet having adequate stroke to actuate well tools of various sizes and types. Another object is to provide a device of this type which is hydrostatically balanced so that it operates equally well in a dry hole or submerged in liquid to any depth in the well. Another object is to provide a device of this type in which recoil after firing is minimized or substantially eliminated. A related object is to provide a device of the type described which is economical to manufacture, having relatively few parts and reliable in operation.
Other and more detailed objects and advantages will appear hereinafter.
In the drawings:
FIGURE 1 shows a preferred embodiment of this invention in longitudinal sectional elevation, FIGURE 1b comprising a continuation of the lower end of FIGURE 1a, and FIGURE 10 comprising a continuation of the lower end of FIGURE 112. FIGURE 1 shows the parts of the actuator for setting tool and the parts of the bridge plug in initial position prior to firing.
FIGURE 2 is a view similar to FIGURE 1, showing the parts in position after firing and showing the bridge plug set within the casing. FIGURE 2b is a continuation of the lower end of FIGURE 2a, and FIGURE 20 is a continuation of the lower end of FIGURE 2b.
Referring to the drawings, the actuator device generally designated 10 comprises a setting tool adapted to be lowered into a well casing 11 on a wire line 12. A bridge plug assembly 13 of conventional design is attached to the lower end of the actuator 10 by means of the frangible connector 14 and spacer 15. In the general plan of operation, the setting tool 10 and bridge plug 13 are lowered as a unit into the well casing 11 on the wire line 12, and when the desired depth is reached, the power charge 16 is ignited electrically to cause the actuator to expand the bridge plug 13 into contact with the casing 11 and to break the frangible connection 14, as shown in FIG- URE 2c. The actuator or setting tool assembly 10 may then be withdrawn from the well casing on the wire line 12, leaving the bridge plug 13 in place in the casing.
The actuator or setting tool 10 includes a cylinder member 20 provided with an axial cylindrical bore 21. A piston 22 having seal rings 23 is slidably mounted within the bore 21. A downward-extending piston rod 25 is fixed to the piston and extends through the central axial opening 26 in the lower end wall 27 of the cylinder member 20. Seal rings 28 mounted in the opening 26 engage the piston rod 25.
A post 30 is fixed to the piston 22 and extends axially upward therefrom and projects slidably through an opening 32 in the annular plug 33. Seal rings 34 in the opening 32 contact the post 30. The annular plug 33 is formed on the lower end of the axial concentric sleeve 35, which is provided on the lower end of the body 37. Threads 38 connect the upper end of the cylinder member 20 to the body 37. Seal rings 39 on the body engage the cylinder member 20 to prevent leakage. A seal ring 40 on the annular plug also engages the cylinder member 20 to prevent leakage. The annular plug 33 forms the upper end wall of a chamber 42 within the cylindrical bore 21 of the cylinder member 20. The end wall 27 forms the lower end wall of the chamber 42.
An axial-extending central tube 45 is fixed to the upper end of the post 30 and extends through the space 46 within the sleeve 35 and between the annular plug 33 and the wall 47 of the body 37. A central opening 48 in the wall 47 slidably receives the tube 45, and seal rings 49 in the opening 48 engage the outer surface of the tube 45. The walls of the body 37 define a closed pocket 51 adapted to receive high-pressure gas from ignition of the powder charge 16. The ignition system for the powder charge 16 is conventional and is operated by electrical energy transmitted through an electric lead wire 52 in the cable 12.
When the powder charge 16 is ignited, gas under high pressure in the pocket 51 passes through the central opening 53 in the tube 45 and through the connecting central passage 54 in the post 30 and outward through lateral ports 55 in the piston 23. The high-pressure gas is thus delivered into the chamber 42 below the piston 22. The piston 22 moves upward, causing the body of oil 57 in the chamber 42 above the piston to pass through one or more restricted ports 58 in the annular plug 33 into the closed cavity 59, defined between the sleeve 35 and the cylinder member 20. This cavity 59 is initially filled with air. It may be at atmospheric pressure, or somewhat higher in order to return the piston 22 to its initial position. Upward movement of the piston 22 under the force of high-pressure gas is slowed by the dashpot action of the oil 57 passing through the restriction 58.
The lower end of the piston rod 25 is connected by coupling 60 to the frangible pin 14 having a weakened section 61. The bridge plug assembly 13 has a mandrel 62 connected to the lower end of the frangible pin 14. The usual expansible elastomeric sleeve 63 is mounted on the mandrel 13 and is caused to expand outward into engagement with the casing 11 when the mandrel 62 moves upward with respect to the ring 64. The usual cones 65 are provided at the opposite ends of the expansible sleeve 63, and wedge slips 66 co-operate with the cones 65 to hold the sleeve 63 in expanded position, as shown in FIGURE 20. The slips 66 may be initially retained in place by frangible bands 67 or by other conventional means. The ring 64 is engaged by the lower end of the spacer 15 which is connected by threads 68 to the lower end of the cylinder member 20.
Accordingly, when the piston 22 moves upward in the chamber 42 the spacer 15 acts in compression while the piston rod 25 acts in tension. After the bridge plug 13 has been set, continued upward movement of the piston 22 overloads the frangible pin 14 in tension, causing it to rupture. Recoil of the actuator 10 at the moment of rupture of the frangible pin 14 is minimized because of the dashpot action of the oil being transferred from the upper portion of the chamber 42 through the restricted ports 58 into the closed cavity 59. The chamber 42 below the piston 22 as well as the pocket 51 remained filled with gas under pressure, after the piston 22 has moved to the upper end of its stroke.
The upper end of the space 46 is vented through ports 70 and 71 to the space outside the actuator tool 10 and within the casing 11. Accordingly, any hydrostatic head of liquid in the casing acts through the ports 71 and 70 and through the space 46 on the exposed upper end of the post 30. Also, the piston rod 25 below the seal rings 28 is exposed to the same hydrostatic pressure through the ports 72 in the upper end of the spacer 15. The relative diameters of the post 30, tube 45, and piston rod 25 are so chosen that the effective area of the piston rod 25 is equal to the effective area of the post 30, minus the efi'ective area of the tube 45. The result is that the piston is hydrostatically balanced regardless of the depth of submergence of the actuator in liquid within the well casing 11.
Having fully described my invention, it is to be understood that I am not to be limited to the details herein set forth, but that my invention is of the full scope of the appended claims.
I claim:
1. An acuator device for a well tool, comprising in combination: a cylinder member having a bore and having upper and lower end walls defining a chamber within said bore, each end wall having an axial opening, a piston slidably mounted within said bore, a piston rod fixed to the piston and projecting slidably through the opening in the lower end wall, a post fixed to the piston and projecting slidably through the opening in the upper end wall, an axial sleeve fixed to the upper end wall forming a closed cavity within the cylinder member, ports in the end wall connecting said cavity to said chamber, the sleeve having interior space into which said post may project, port means venting said interior space to the exterior of said actuator device, walls forming a pocket above the sleeve to receive a pressure-generating charge, and means forming a passage connecting said pocket to the chamber below the piston.
2. An actuator device for a well tool, comprising in combination: a cylinder member having a bore and having upper and lower end walls defining a chamber within said bore, each end wall having an axial opening, a piston slidably mounted within said bore, the chamber above the piston containing oil, a piston rod fixed to the piston and projecting slidably through the opening in the lower end Wall, a post fixed to the piston and projecting slidably through the opening in the upper end wall, an axial sleeve fixed to the upper end wall forming a closed cavity within the cylinder member, said closed cavity containing atmospheric air, ports in the end wall connecting said cavity to said chamber, the sleeve having interior space into which said post may project, port means venting said interior space to the exterior of said actuator device, walls forming a pocket above the sleeve to receive a pressure-generating charge, axially slidable telescoping parts including a tube extending between said post and said pocket, and passage means in the post and piston connecting the chamber below the piston to said pocket through the interior of the tube.
3. An actuator device for a well tool, comprising in combination: a cylinder member having a bore and having upper and lower end walls defining a chamber within said bore, each end wall having an axial opening, a piston slidably mounted within said bore, a piston rod fixed to the piston and projecting slidably through the opening in the lower end wall, a post fixed to the piston and projecting slidably through the opening in the upper end wall, an axial sleeve fixed to the upper end wall forming a closed cavity Within the cylinder member, ports in the end wall connecting said cavity to said chamber, the sleeve having interior space into which said post may project, port means venting said interior space to the exterior of said actuator device for balancing said piston against hydrostatic pressure of fluid in which the actuator device may be immersed, Walls forming a pocket above the sleeve to receive a pressure-generating charge, axially slidable telescoping parts including a tube extending between said post and said pocket, and passage means in the post and piston connecting the chamber below the piston to said pocket through the interior of the tube.
4. An actuator device for a well tool, comprising in combination: a cylinder member having a bore and having upper and lower end walls defining a chamber within said bore, each end wall having an axial opening, a piston slidably mounted within said bore, a piston rod fixed to the piston and projecting slidably through the opening in the lower end wall, a post fixed to the piston and projecting slidably through the opening in the upper end wall, an axial sleeve fixed to the upper end wall forming a closed cavity within the cylinder member, ports in the end wall connecting said cavity to said chamber, the sleeve having interior space into which said post may project, port means venting said interior space to the exterior of said actuator device for balancing said piston against hydrostatic pressure of fluid in which the actuator device may be immersed, walls forming a pocket above the sleeve to receive a pressure-generating charge, one of the walls having an opening, a tube fixed coaxially to said post and slidably received in the latter said opening, and passage means in the post and piston connecting the chamber below the piston to said pocket through the interior of the tube.
5. An actuator device for a well tool, comprising in combination: a cylinder member having an axial bore, a piston slidable axially within said bore and having a piston rod fixed thereto and projecting downward therefrom, the cylinder member having an end wall provided with an opening slidably receiving said piston rod, the piston also having a concentric cylindrical post fixed thereto and projecting upward therefrom, a tubular body fixed to the cylinder member and having an axial sleeve extending into said cylinder member and having an annular plug sealed within the cylinder member above said piston, said annular plug having an opening slidably receiving said post, the space within the cylindrical bore between the end wall and the annular plug comprising a chamber, said sleeve and said cylinder member co-operating to form a closed cavity, ports in said annular plu-g connecting said closed cavity to the chamber above said piston, ports in the body member venting the space within the sleeve to the exterior of the actuator device, the body having walls forming a pocket above the sleeve to receive a pressuregenerating charge, axially slidable telescoping parts including an element extending between said post and said pocket, and passage means connecting the chamber below the piston to said pocket.
6. An actuator device for a well too], comprising in combination: a cylinder member having an axial bore, a piston slidable axially Within said bore and having a piston rod fixed thereto and projecting downward therefrom, the cylinder member having an end wall provided with an opening slidably receiving said piston rod, the piston also having a concentric cylindrical post fixed thereto and projecting upward therefrom, a tubular body fixed to the cylinder member and having an axial sleeve extending into said cylinder member and having an annular plug sealed within the cylinder member above said piston, said annular plug having an opening slidably receiving said post, the space within the cylindrical bore between the end wall and the annular plug comprising a chamber, said sleeve and said cylinder member co-operating to form a closed cavity, ports in said annular plug connecting said closed cavity to the chamber above said piston, ports venting the space within the sleeve to the exterior of the actuator device for balancing said piston against hydrostatic pressure of fluid in which the actuator device may be immersed, the body having walls forming a pocket above the sleeve to receive a pressure-generating charge, axially slidable telescoping parts including a tube extending between said post and said pocket, and passage means in the post and piston connecting the chamber below the piston to the pocket through the interior of the tube.
7. For use with a well tool having two parts adapted for relative axial movement, an actuator device comprising, in combination: a cylinder member having an axial bore, means for connecting the cylinder member to one of the well tool parts, a piston slidable axially within said bore of said cylinder member and having a piston rod fixed thereto and projecting downward therefrom, means for connecting said piston rod to the other of the well tool parts, the cylinder member having an end wall provided with an opening slidably receiving said piston rod, the piston also having a concentric cylindrical post fixed thereto and projecting upward therefrom, a tubular body fixed to the cylinder member and having an axial sleeve extending into said cylinder member and having an annular plug sealed within the cylinder member above said piston, said plug having an opening slidably receiving said post, the space within the cylindrical bore between the end wall and the annular plug comprising a chamber, said sleeve and said cylinder member cooperating to form a closed cavity, ports in said annular plug connecting said closed cavity to the chamber above said piston, ports in the body member venting the space within the sleeve to the exterior of the actuator device, the body having a pocket above the sleeve to receive a pressure-generating charge, axially slidable telescoping parts including a tube extending between said post and said pocket, and passage means in the post and piston connecting the chamber below the piston to the pocket through the interior of the tube.
8. The device of claim 7 in which the closed cavity contains atmospheric air and the chamber above the piston contains oil.
9. For use with a well tool having two parts adapted for relative axial movement, an actuator device comprising, in combination: a cylinder member having an axial bore, means for connecting the cylinder member to one of the well tool parts, a piston slidable axially within said bore of said cylinder member and having a piston rod fixed thereto and projecting downward therefrom, means for connecting said piston rod to the other of the well tool parts, the cylinder member having an end wall provided with an opening slidably receiving said piston rod, the piston also having a concentric cylindrical post fixed thereto and projecting upward therefrom, a tubular body fixed to the cylinder member and having an axial sleeve extending into said cylinder member and having an annular plu-g sealed within the cylinder member above said piston, said annular plug having an opening slidably receiving said post, the space within the cylindrical bore between the end wall and the annular plug comprising a chamber, said sleeve and said cylinder member co-operating to form a closed cavity, ports in said annular plug connecting said closed cavity to the chamber above said piston, ports in the bodv member venting the space within the sleeve to the exterior of the actuator device, the body having walls forming a pocket above the sleeve to receive a pressure-generating charge, one of the walls having an opening, a tube fixed on said post and slidably received in the latter said opening, and passage means in the post and piston connecting the chamber below the piston to the pocket through the interior of the tube.
References Cited by the Examiner UNITED STATES PATENTS 2,978,028 4/1961 Webb 16663 3,125,162 3/1964 Briggs et al l66-123 3,138,207 6/1964 Peppers 166-63 3,186,485 6/1965 Owen 166-63 3,220,480 11/1965 Myers -a 166-63 CHARLES E. OCONNELL, Primary Examiner.
D. H. BROWN, Assistant Examiner.

Claims (1)

1. AN ACTUATOR DEVICE FOR WELL TOOL, COMPRISING IN COMBINATION: A CYLINDER MEMBER HAVING A BORE AND HAVING UPPER AND LOWER END WALLS DEFINING A CHAMBER WITHIN SAID BORE, EACH END WALL HAVING AN AXIAL OPENING, A PISTON SLIDABLY MOUNTED WITHIN SAID BORE, A PISTON ROD FIXED TO THE PISTON AND PROJECTING SLIDABLY THROUGH THE OPENING IN THE LOWER END WALL, A POST FIXED TO THE PISTON AND PROJECTING SLIDABLY THROUGH THE OPENING IN THE UPPER END WALL, AN AXIAL SLEEVE FIXED TO THE UPPER END WALL FORMING A CLOSED CAVITY WITHIN THE CYLINDER MEMBER, PORTS IN THE END WALL CONNECTING SAID CAVITY TO SAID CHAMBER, THE SLEEVE HAVING INTERIOR SPACE INTO WHICH SAID POST MAY PROJECT, PORT MEANS VENTING SAID INTERIOR SPACE TO THE
US390687A 1964-08-19 1964-08-19 Actuator device for well tool Expired - Lifetime US3298437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US390687A US3298437A (en) 1964-08-19 1964-08-19 Actuator device for well tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US390687A US3298437A (en) 1964-08-19 1964-08-19 Actuator device for well tool

Publications (1)

Publication Number Publication Date
US3298437A true US3298437A (en) 1967-01-17

Family

ID=23543502

Family Applications (1)

Application Number Title Priority Date Filing Date
US390687A Expired - Lifetime US3298437A (en) 1964-08-19 1964-08-19 Actuator device for well tool

Country Status (1)

Country Link
US (1) US3298437A (en)

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519074A (en) * 1968-10-28 1970-07-07 Schlumberger Technology Corp Setting tool apparatus
US3520360A (en) * 1968-10-28 1970-07-14 Schlumberger Technology Corp Setting tool apparatus
EP0069181A1 (en) * 1981-07-03 1983-01-12 Juei-Tse Lin Method of and apparatus for use in reinforcing a piling structure, and a precast concrete pile for use in the method
US4441552A (en) * 1982-06-18 1984-04-10 Halliburton Company Hydraulic setting tool with flapper valve
US4493374A (en) * 1983-03-24 1985-01-15 Arlington Automatics, Inc. Hydraulic setting tool
US4593765A (en) * 1984-07-03 1986-06-10 Dresser Industries, Inc. Tubing resettable well tool
US4784226A (en) * 1987-05-22 1988-11-15 Arrow Oil Tools, Inc. Drillable bridge plug
US5146983A (en) * 1991-03-15 1992-09-15 Schlumberger Technology Corporation Hydrostatic setting tool including a selectively operable apparatus initially blocking an orifice disposed between two chambers and opening in response to a signal
US5316087A (en) * 1992-08-11 1994-05-31 Halliburton Company Pyrotechnic charge powered operating system for downhole tools
US5819846A (en) * 1996-10-01 1998-10-13 Bolt, Jr.; Donald B. Bridge plug
US20040003928A1 (en) * 2002-07-02 2004-01-08 Frazier Warren L Composite bridge plug system
US20080073074A1 (en) * 2006-09-25 2008-03-27 Frazier W Lynn Composite cement retainer
US20100155050A1 (en) * 2008-12-23 2010-06-24 Frazier W Lynn Down hole tool
US20100263876A1 (en) * 2009-04-21 2010-10-21 Frazier W Lynn Combination down hole tool
US8459346B2 (en) 2008-12-23 2013-06-11 Magnum Oil Tools International Ltd Bottom set downhole plug
USD694280S1 (en) 2011-07-29 2013-11-26 W. Lynn Frazier Configurable insert for a downhole plug
USD694281S1 (en) 2011-07-29 2013-11-26 W. Lynn Frazier Lower set insert with a lower ball seat for a downhole plug
USD698370S1 (en) 2011-07-29 2014-01-28 W. Lynn Frazier Lower set caged ball insert for a downhole plug
USD703713S1 (en) 2011-07-29 2014-04-29 W. Lynn Frazier Configurable caged ball insert for a downhole tool
US20140144653A1 (en) * 2011-02-17 2014-05-29 Baker Hughes Incorporated Annulus Mounted Potential Energy Driven Setting Tool
US8899317B2 (en) 2008-12-23 2014-12-02 W. Lynn Frazier Decomposable pumpdown ball for downhole plugs
US9062522B2 (en) 2009-04-21 2015-06-23 W. Lynn Frazier Configurable inserts for downhole plugs
US9109428B2 (en) 2009-04-21 2015-08-18 W. Lynn Frazier Configurable bridge plugs and methods for using same
US9127527B2 (en) 2009-04-21 2015-09-08 W. Lynn Frazier Decomposable impediments for downhole tools and methods for using same
US9163477B2 (en) 2009-04-21 2015-10-20 W. Lynn Frazier Configurable downhole tools and methods for using same
US9181772B2 (en) 2009-04-21 2015-11-10 W. Lynn Frazier Decomposable impediments for downhole plugs
US9217319B2 (en) 2012-05-18 2015-12-22 Frazier Technologies, L.L.C. High-molecular-weight polyglycolides for hydrocarbon recovery
USRE46028E1 (en) 2003-05-15 2016-06-14 Kureha Corporation Method and apparatus for delayed flow or pressure change in wells
US9506309B2 (en) 2008-12-23 2016-11-29 Frazier Ball Invention, LLC Downhole tools having non-toxic degradable elements
US20160369588A1 (en) * 2011-08-22 2016-12-22 Downhole Technology, Llc Downhole tool having a mandrel with a relief point
US9562415B2 (en) 2009-04-21 2017-02-07 Magnum Oil Tools International, Ltd. Configurable inserts for downhole plugs
US9587475B2 (en) 2008-12-23 2017-03-07 Frazier Ball Invention, LLC Downhole tools having non-toxic degradable elements and their methods of use
US9708878B2 (en) 2003-05-15 2017-07-18 Kureha Corporation Applications of degradable polymer for delayed mechanical changes in wells
US20180080298A1 (en) * 2015-04-02 2018-03-22 Hunting Titan, Inc. Opposing Piston Setting Tool
US20200248516A1 (en) * 2019-02-06 2020-08-06 G&H Diversified Manufacturing Lp Systems and methods for setting a downhole plug using a self damping setting tool
US10927627B2 (en) 2019-05-14 2021-02-23 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
USD922541S1 (en) 2020-03-31 2021-06-15 DynaEnergetics Europe GmbH Alignment sub
US11053760B2 (en) 2018-07-13 2021-07-06 Kingdom Downhole Tools, Llc Setting tool
US11053759B2 (en) * 2017-01-19 2021-07-06 Hunting Titan, Inc. Compact setting tool
US11204224B2 (en) 2019-05-29 2021-12-21 DynaEnergetics Europe GmbH Reverse burn power charge for a wellbore tool
US11248435B1 (en) 2020-08-14 2022-02-15 CNPC USA Corp. Frac plug system with a setting mandrel and fluid bypass slots
US11255147B2 (en) 2019-05-14 2022-02-22 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US11408279B2 (en) 2018-08-21 2022-08-09 DynaEnergetics Europe GmbH System and method for navigating a wellbore and determining location in a wellbore
US11434713B2 (en) 2018-05-31 2022-09-06 DynaEnergetics Europe GmbH Wellhead launcher system and method
US11441374B2 (en) * 2020-05-18 2022-09-13 Baker Hughes Oilfield Operations Llc Disposable setting tool for wellbore operations
US11578549B2 (en) 2019-05-14 2023-02-14 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US20230138158A1 (en) * 2021-11-04 2023-05-04 Baker Hughes Oilfield Operations Llc Counter object, method and system
US11753889B1 (en) 2022-07-13 2023-09-12 DynaEnergetics Europe GmbH Gas driven wireline release tool
US11761281B2 (en) 2019-10-01 2023-09-19 DynaEnergetics Europe GmbH Shaped power charge with integrated initiator
US11808093B2 (en) 2018-07-17 2023-11-07 DynaEnergetics Europe GmbH Oriented perforating system
US11946728B2 (en) 2019-12-10 2024-04-02 DynaEnergetics Europe GmbH Initiator head with circuit board

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978028A (en) * 1957-12-31 1961-04-04 Houston Engineers Inc Well packer setting device
US3125162A (en) * 1964-03-17 Hydrostatic setting tool
US3138207A (en) * 1960-06-20 1964-06-23 Halliburton Co Pressure balanced actuating device
US3186485A (en) * 1962-04-04 1965-06-01 Harrold D Owen Setting tool devices
US3220480A (en) * 1961-02-06 1965-11-30 Baker Oil Tools Inc Subsurface apparatus for operating well tools

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125162A (en) * 1964-03-17 Hydrostatic setting tool
US2978028A (en) * 1957-12-31 1961-04-04 Houston Engineers Inc Well packer setting device
US3138207A (en) * 1960-06-20 1964-06-23 Halliburton Co Pressure balanced actuating device
US3220480A (en) * 1961-02-06 1965-11-30 Baker Oil Tools Inc Subsurface apparatus for operating well tools
US3186485A (en) * 1962-04-04 1965-06-01 Harrold D Owen Setting tool devices

Cited By (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519074A (en) * 1968-10-28 1970-07-07 Schlumberger Technology Corp Setting tool apparatus
US3520360A (en) * 1968-10-28 1970-07-14 Schlumberger Technology Corp Setting tool apparatus
EP0069181A1 (en) * 1981-07-03 1983-01-12 Juei-Tse Lin Method of and apparatus for use in reinforcing a piling structure, and a precast concrete pile for use in the method
US4441552A (en) * 1982-06-18 1984-04-10 Halliburton Company Hydraulic setting tool with flapper valve
US4493374A (en) * 1983-03-24 1985-01-15 Arlington Automatics, Inc. Hydraulic setting tool
US4593765A (en) * 1984-07-03 1986-06-10 Dresser Industries, Inc. Tubing resettable well tool
US4784226A (en) * 1987-05-22 1988-11-15 Arrow Oil Tools, Inc. Drillable bridge plug
US5146983A (en) * 1991-03-15 1992-09-15 Schlumberger Technology Corporation Hydrostatic setting tool including a selectively operable apparatus initially blocking an orifice disposed between two chambers and opening in response to a signal
US5316087A (en) * 1992-08-11 1994-05-31 Halliburton Company Pyrotechnic charge powered operating system for downhole tools
US5819846A (en) * 1996-10-01 1998-10-13 Bolt, Jr.; Donald B. Bridge plug
US20040003928A1 (en) * 2002-07-02 2004-01-08 Frazier Warren L Composite bridge plug system
US6796376B2 (en) * 2002-07-02 2004-09-28 Warren L. Frazier Composite bridge plug system
US10280703B2 (en) 2003-05-15 2019-05-07 Kureha Corporation Applications of degradable polymer for delayed mechanical changes in wells
US9708878B2 (en) 2003-05-15 2017-07-18 Kureha Corporation Applications of degradable polymer for delayed mechanical changes in wells
USRE46028E1 (en) 2003-05-15 2016-06-14 Kureha Corporation Method and apparatus for delayed flow or pressure change in wells
US20080073074A1 (en) * 2006-09-25 2008-03-27 Frazier W Lynn Composite cement retainer
US7762323B2 (en) 2006-09-25 2010-07-27 W. Lynn Frazier Composite cement retainer
US20100263857A1 (en) * 2006-09-25 2010-10-21 Frazier W Lynn Composite Cement Retainer
US8783341B2 (en) 2006-09-25 2014-07-22 W. Lynn Frazier Composite cement retainer
US9309744B2 (en) 2008-12-23 2016-04-12 Magnum Oil Tools International, Ltd. Bottom set downhole plug
US9506309B2 (en) 2008-12-23 2016-11-29 Frazier Ball Invention, LLC Downhole tools having non-toxic degradable elements
USD694282S1 (en) 2008-12-23 2013-11-26 W. Lynn Frazier Lower set insert for a downhole plug for use in a wellbore
USD697088S1 (en) 2008-12-23 2014-01-07 W. Lynn Frazier Lower set insert for a downhole plug for use in a wellbore
US20100155050A1 (en) * 2008-12-23 2010-06-24 Frazier W Lynn Down hole tool
US8459346B2 (en) 2008-12-23 2013-06-11 Magnum Oil Tools International Ltd Bottom set downhole plug
US8496052B2 (en) 2008-12-23 2013-07-30 Magnum Oil Tools International, Ltd. Bottom set down hole tool
US9587475B2 (en) 2008-12-23 2017-03-07 Frazier Ball Invention, LLC Downhole tools having non-toxic degradable elements and their methods of use
US8899317B2 (en) 2008-12-23 2014-12-02 W. Lynn Frazier Decomposable pumpdown ball for downhole plugs
US9062522B2 (en) 2009-04-21 2015-06-23 W. Lynn Frazier Configurable inserts for downhole plugs
US9109428B2 (en) 2009-04-21 2015-08-18 W. Lynn Frazier Configurable bridge plugs and methods for using same
US9127527B2 (en) 2009-04-21 2015-09-08 W. Lynn Frazier Decomposable impediments for downhole tools and methods for using same
US9163477B2 (en) 2009-04-21 2015-10-20 W. Lynn Frazier Configurable downhole tools and methods for using same
US9181772B2 (en) 2009-04-21 2015-11-10 W. Lynn Frazier Decomposable impediments for downhole plugs
US9562415B2 (en) 2009-04-21 2017-02-07 Magnum Oil Tools International, Ltd. Configurable inserts for downhole plugs
US20100263876A1 (en) * 2009-04-21 2010-10-21 Frazier W Lynn Combination down hole tool
US20140144653A1 (en) * 2011-02-17 2014-05-29 Baker Hughes Incorporated Annulus Mounted Potential Energy Driven Setting Tool
US9488028B2 (en) * 2011-02-17 2016-11-08 Baker Hughes Incorporated Annulus mounted potential energy driven setting tool
USD694280S1 (en) 2011-07-29 2013-11-26 W. Lynn Frazier Configurable insert for a downhole plug
USD694281S1 (en) 2011-07-29 2013-11-26 W. Lynn Frazier Lower set insert with a lower ball seat for a downhole plug
USD703713S1 (en) 2011-07-29 2014-04-29 W. Lynn Frazier Configurable caged ball insert for a downhole tool
USD698370S1 (en) 2011-07-29 2014-01-28 W. Lynn Frazier Lower set caged ball insert for a downhole plug
US20160369588A1 (en) * 2011-08-22 2016-12-22 Downhole Technology, Llc Downhole tool having a mandrel with a relief point
US10711563B2 (en) * 2011-08-22 2020-07-14 The Wellboss Company, Llc Downhole tool having a mandrel with a relief point
US9217319B2 (en) 2012-05-18 2015-12-22 Frazier Technologies, L.L.C. High-molecular-weight polyglycolides for hydrocarbon recovery
US10538981B2 (en) * 2015-04-02 2020-01-21 Hunting Titan, Inc. Opposing piston setting tool
US10767430B2 (en) 2015-04-02 2020-09-08 Hunting Titan, Inc. Opposing piston setting tool
US20180080298A1 (en) * 2015-04-02 2018-03-22 Hunting Titan, Inc. Opposing Piston Setting Tool
US11542766B2 (en) 2017-01-19 2023-01-03 Hunting Titan, Inc. Compact setting tool
US11053759B2 (en) * 2017-01-19 2021-07-06 Hunting Titan, Inc. Compact setting tool
US11434713B2 (en) 2018-05-31 2022-09-06 DynaEnergetics Europe GmbH Wellhead launcher system and method
US11053760B2 (en) 2018-07-13 2021-07-06 Kingdom Downhole Tools, Llc Setting tool
US11525319B2 (en) 2018-07-13 2022-12-13 Kingdom Downhole Tools, Llc Setting tool
US11808093B2 (en) 2018-07-17 2023-11-07 DynaEnergetics Europe GmbH Oriented perforating system
US11408279B2 (en) 2018-08-21 2022-08-09 DynaEnergetics Europe GmbH System and method for navigating a wellbore and determining location in a wellbore
US20200248516A1 (en) * 2019-02-06 2020-08-06 G&H Diversified Manufacturing Lp Systems and methods for setting a downhole plug using a self damping setting tool
US10934794B2 (en) * 2019-02-06 2021-03-02 G&H Diversified Manufacturing Lp Systems and methods for setting a downhole plug using a self damping setting tool
US11255147B2 (en) 2019-05-14 2022-02-22 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US11578549B2 (en) 2019-05-14 2023-02-14 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US10927627B2 (en) 2019-05-14 2021-02-23 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US11204224B2 (en) 2019-05-29 2021-12-21 DynaEnergetics Europe GmbH Reverse burn power charge for a wellbore tool
US11761281B2 (en) 2019-10-01 2023-09-19 DynaEnergetics Europe GmbH Shaped power charge with integrated initiator
US11946728B2 (en) 2019-12-10 2024-04-02 DynaEnergetics Europe GmbH Initiator head with circuit board
USD922541S1 (en) 2020-03-31 2021-06-15 DynaEnergetics Europe GmbH Alignment sub
US11441374B2 (en) * 2020-05-18 2022-09-13 Baker Hughes Oilfield Operations Llc Disposable setting tool for wellbore operations
US11248435B1 (en) 2020-08-14 2022-02-15 CNPC USA Corp. Frac plug system with a setting mandrel and fluid bypass slots
US20230138158A1 (en) * 2021-11-04 2023-05-04 Baker Hughes Oilfield Operations Llc Counter object, method and system
US11761303B2 (en) * 2021-11-04 2023-09-19 Baker Hughes Oilfield Operations Llc Counter object, method and system
US11753889B1 (en) 2022-07-13 2023-09-12 DynaEnergetics Europe GmbH Gas driven wireline release tool

Similar Documents

Publication Publication Date Title
US3298437A (en) Actuator device for well tool
US2373006A (en) Means for operating well apparatus
US2695064A (en) Well packer apparatus
US9810035B1 (en) Disposable setting tool
US11525319B2 (en) Setting tool
US3186485A (en) Setting tool devices
USRE25846E (en) Well packer apparatus
US3055430A (en) Well packer apparatus
US3029873A (en) Combination bridging plug and combustion chamber
US3160209A (en) Well apparatus setting tool
US2656891A (en) Apparatus for plugging wells
US4694878A (en) Disconnect sub for a tubing conveyed perforating gun
US3460625A (en) Methods and apparatus for bridging a well conduit
US2815816A (en) Automatically relieved gas pressure well apparatus
US3090436A (en) Wire line hydraulic fracturing tool
US3167127A (en) Dual well packer
US2644530A (en) Gas-operated well apparatus with expansion retarding device
CN108131108B (en) Detonator starting hydraulic setting tool and application thereof
US11761281B2 (en) Shaped power charge with integrated initiator
US2266382A (en) Setting tool for bridging plugs
US2537413A (en) Pulling tool
US3220480A (en) Subsurface apparatus for operating well tools
US3374838A (en) Fluid expansible packer and anchor apparatus
US11078738B2 (en) Hydraulically activated setting tool and method
US3029872A (en) Telescopic bridging plug-pressure set