One trip treating tool for a resource exploration system and method of treating a formation

Patent metadata

Field	Value
Publication number	US-10435959-B2
Application number	US-201715413592-A
Country	US
Kind code	B2
Filing date	Jan 24, 2017
Priority date	Jan 24, 2017
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

A method of treating a first bore and at least one second bore connected to the first bore in one downhole trip includes guiding a treating tool including a seal assembly defining and a shroud extending about the seal assembly downhole, guiding the seal assembly and the shroud along a diverter positioned near an intersection of the first bore and the at least one second bore into the at least one second bore, shifting the shroud relative to the seal assembly exposing the seal assembly in the at least one second bore, performing a first treatment in the at least one second bore, positioning the seal assembly and the shroud uphole of the diverter, passing the seal assembly through an opening in the diverter having a diverter opening, and performing a second treatment in the first bore.

First claim

The invention claimed is:

1. A method of treating a first bore and at least one second bore connected to the first bore in one downhole trip of a treating tool comprising:
guiding the treating tool including a seal assembly defining a first diameter and a shroud extending about the seal assembly defining a second diameter downhole;
guiding the seal assembly and the shroud along a diverter positioned near an intersection of the first bore and the at least one second bore into the at least one second bore having a third diameter greater than the second diameter;
shifting the shroud relative to the seal assembly in an uphole direction by introducing a fluid into a chamber arranged between the shroud and the seal assembly thereby exposing the seal assembly in the at least one second bore;
performing a first treatment in the at least one second bore;
positioning the seal assembly and the shroud uphole of the diverter;
passing the seal assembly through an opening in the diverter having a diverter opening including a fourth diameter greater than the first diameter and smaller than the second diameter; and
performing a second treatment in the first bore.

2. The method of claim 1 , further comprising: positioning the seal assembly and the shroud uphole of a second bore liner arranged in the at least one second bore.

3. The method of claim 2 , further comprising: extending the seal assembly into the second bore liner after shifting the shroud.

4. The method of claim 3 , wherein extending the seal assembly into the second bore liner includes engaging one or more seals provided on an outer surface of the seal assembly with an inner surface of the second bore liner.

5. The method of claim 1 , wherein introducing the fluid into the chamber includes passing the fluid through a passage formed in the seal assembly.

6. The method of claim 5 , wherein passing the fluid through the passage includes shifting a sleeve arranged within the seal assembly to uncover the passage.

7. The method of claim 6 , wherein shifting the sleeve includes dropping a ball onto the sleeve and applying fluid pressure to the ball.

8. The method of claim 7 , further comprising: removing the ball from the sleeve.

9. The method of claim 8 , wherein removing the ball from the sleeve includes forcing the ball through an opening defined by the sleeve.

10. The method of claim 8 , wherein removing the ball from the sleeve includes dissolving the ball.

11. The method of claim 8 , wherein performing the treatment includes removing the ball from the sleeve.

12. A one trip treating tool comprising:
a tubular defining a seal assembly having an inner surface defining a passage, an outer surface and a terminal end portion; and
a shroud arranged about the outer surface adjacent the terminal end portion of the seal assembly, the shroud being sized to pass into a first bore of a well bore, the first bore having a first diameter, and the seal assembly being sized to pass into a second bore of the wellbore, the second bore having a second diameter that is less than the first diameter, the one trip treating tool being operable to perform a treatment of each of the first and second bores in one downhole trip, the shroud being shiftable in an uphole direction by introducing a fluid into a chamber arranged between the shroud and the seal assembly.

13. The one trip treating tool according to claim 12 , wherein the shroud includes an uphole end portion, a downhole end portion, and an intermediate portion, the intermediate portion including a radially inwardly directed protrusion that is substantially fluidically sealed against the outer surface.

14. The one trip treating tool according to claim 13 , further comprising: a chamber arranged between the shroud and the outer surface, the chamber extending from the uphole end portion to the radially inwardly directed protrusion.

15. The one trip treating tool according to claim 14 , further comprising: at least one pathway extending through the seal assembly fluidically connecting the passage and the chamber.

16. The one trip treating tool according to claim 15 , further comprising: a seal member arranged in the chamber uphole of the pathway, the seal member being in sealing engagement with the shroud.

17. The one trip treating tool according to claim 15 , further comprising: a shifting sleeve arranged in the passage at the pathway, the shifting sleeve being selectively shiftable to expose the pathway to the passage.

18. The one trip treating tool according to claim 17 , wherein the shifting sleeve includes an uphole end defining a ball seat.

Assignees

• Pendleton Bryan P
• Sheehan Joseph
• Mosley Deshuttaney
• Martin Shannon
• Vu John
• Krueger Matthew J
• Knebel Mark J
• Baker Hughes A Ge Co Llc

Inventors

• Pendleton Bryan P
• Sheehan Joseph
• Mosley Deshuttaney
• Martin Shannon
• Vu John
• Krueger Matthew J
• Knebel Mark J

Classifications

• E21B23/12

  Tool diverters · CPC title

• E21B33/12

  Packers; Plugs (used for cementing E21B33/134, E21B33/16) · CPC title

• E21B17/07 Primary

  Telescoping joints for varying drill string lengths; Shock absorbers · CPC title

• E21B41/0035 Primary

  Apparatus or methods for multilateral well technology, e.g. for the completion of or workover on wells with one or more lateral branches · CPC title

• E21B23/002

  Fixed Constructions · mapped topic