Claims
- 1. An orienting tool for positioning in a well bore casing having a profile positioned therealong, the tool comprising: a body; at least one member mounted on the tool body and biased outwardly, at a selected pressure, therefrom, the selected pressure being great enough to permit determination of when the at least one member has moved past the profile but not being so great as to prevent the at least one member from moving past the profile using normal force.wherein the at least one member is a spring loaded dog.
- 2. The orienting tool of claim 1, further comprising at least another member, the members comprising a ring of dogs mounted about a circumference of the tool body and each biased outwardly therefrom.
- 3. The orienting tool of claim 1 wherein the selected pressure is 20,000 to 30,000 psi during operation of the members to position the tool.
- 4. An orienting tool for positioning in a well bore casing having a profile positioned therealong, the tool comprising: a body; at least one member mounted on the tool body and biased outwardly, at a selected pressure, therefrom, the selected pressure being great enough to permit determination of when the at least one member has moved past the profile but not being so great as to prevent the at least one member from moving past the profile using normal force; anda biasing means, wherein the at least one member is biased outwardly by the biasing means selected to exert increased pressure as the depth of the tool is increased.
- 5. The orienting tool of claim 1 wherein the profile is a groove sized to accept the at least one member therein.
- 6. An orienting tool for positioning in a well bore casing having a profile positioned therealong, the tool comprising: a body at least one member mounted on the tool body and biased outwardly at a selected pressure, therefrom, the selected pressure being great enough to permit determination of when the at least one member has moved past the profile but not being so seat as to prevent the at least one member from moving past the profile using normal force; anda latch mounted thereon and radially extendable therefrom for fitting into a slot formed in the casing and positioned at a selected radial position relative to the center axis of the casing.
- 7. The orienting tool of claim 6 wherein the tool body includes a first part carrying the at least one member, a second part carrying the latch and a joint positioned therebetween for permitting the second part to rotate relative to the first part.
- 8. The orienting tool of claim 6 wherein the tool body includes a first part carrying the at least one member, a second part carrying the latch and a joint positioned therebetween for permitting the second part to move out of axial alignment with the first part.
- 9. A tool for use in a wellbore conduit, comprising:a body, at least one member mounted on the body, and a mechanism adapted to bias the member radially outwardly to engage the conduit, the member adapted to allow axial movement of the tool in the conduit but to provide resistance to the axial movement, the mechanism being responsive to wellbore pressure to provide a biasing force on the at least one member.
- 10. The tool of claim 9, wherein the biasing force applied by the mechanism affects a load required to move the orienting tool through the conduit.
- 11. The tool of claim 10, wherein the conduit comprises a profile, and wherein alignment of the at least one member in the profile due to the biasing force applied on the at least one member is detectable by a decrease in the load.
- 12. The tool of claim 9, wherein the mechanism comprises a first chamber in communication with wellbore fluids, a second chamber having a reference pressure, and a piston between the first and second chambers.
- 13. The tool of claim 12, wherein the piston is adapted to apply the biasing force on the at least one member.
- 14. The tool of claim 13, wherein the biasing force increases with wellbore fluid pressure.
- 15. The tool of claim 14, wherein the mechanism further comprises a spring operably engaged with the at least one member, the piston adapted to compress the spring.
- 16. The tool of claim 9, further comprising at least another member biased radially outwardly by the mechanism.
- 17. The tool of claim 9, further comprising a latch adapted to latch into a profile of the conduit.
- 18. A method of positioning an orienting tool in a conduit in a wellbore comprising:providing an orienting tool having a body and a member biased radially outwardly; providing a wellbore pressure responsive mechanism to apply a biasing force against the member; and running the orienting tool in the conduit, the member providing resistance to axial movement of the orienting tool, the resistance being decreased when the member is aligned with a profile of the conduit.
- 19. The method of claim 18, further comprising at least another member biased radially outwardly by the pressure responsive mechanism.
Priority Claims (2)
Number |
Date |
Country |
Kind |
236047 |
Apr 1998 |
CA |
|
2245342 |
Aug 1998 |
CA |
|
Parent Case Info
This application is a continuation-in-part of U.S. application Ser. No. 08/923,945 filed on Sep. 5, 1997, now U.S. Pat. No. 6,012,516.
US Referenced Citations (9)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
08/923945 |
Sep 1997 |
US |
Child |
09/305775 |
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US |