Systems and methods for managing debris in a well
Various systems, methods, and devices are disclosed for handling contaminants in a wellbore or riser. A washpipe debris trap (WPDT) traps contaminants traveling up a wellbore from a downhole location, and the WPDT may serve as an indicator for a breached screen in a downhole location. A marine riser reversing tool (MRRT) may reverse the flow of fluid between a workstring conduit and an annulus between the workstring and the wellbore such that fluid rises to the wellhead with greater velocity. A bi-directional chamber trap (BDCT) may be utilized in a wellbore operation to remove contaminants from a fluid.
1. A system for cleaning an annulus in a wellbore or riser, comprising:
a workstring comprising a plurality of drill pipes positioned in a wellbore or riser, wherein the plurality of drill pipes form a conduit for a fluid to flow through the workstring, and wherein an outer diameter of the plurality of drill pipes and an inner diameter of the wellbore or riser form an annulus for the fluid to flow through;
a reversing tool positioned in the workstring, the reversing tool having a body with a bottom end and a top end, a first channel in fluid communication with the conduit at the top end and the annulus at the bottom end, and a second channel in fluid communication with the annulus at the top end and the conduit at the bottom end;
a debris trap positioned in the workstring, the debris trap having an upper assembly, a lower assembly, and a chamber formed between the upper assembly and the lower assembly, the upper assembly comprising an upper screen, and the lower assembly comprising a lower screen and a check valve; and
a blow out preventer positioned in the wellbore or riser, wherein the reversing tool and the debris trap are positioned above the blow out preventer in the wellbore or riser.
2. The system of claim 1 , further comprising:
a control screen positioned between the conduit of the plurality of drill pipes and the annulus between the plurality of drill pipes and the wellbore or riser, wherein the control screen is configured to filter contaminants from the fluid flowing between the annulus and the conduit.
3. The system of claim 1 , wherein the reversing tool further comprises a seal, and an outer diameter of the seal is larger than an outer diameter of the body of the reversing tool.
4. The system of claim 1 , wherein the first channel extends between a first opening at the top end and a second opening at the bottom end and the second channel extends between a first opening at the bottom end and a second opening at the top end, wherein cross sectional areas of the second openings of the first and second channels are larger than cross sectional areas of the first openings of the first and second channels.
5. The system of claim 4 , wherein the second openings of the first and second channels comprise at least one of a chamfer and a round.
6. The system of claim 1 , wherein the first channel and the second channel are substantially straight.
7. The system of claim 1 , further comprising:
wherein the fluid flows through the upper assembly of the debris trap, the chamber of the debris trap, and the lower assembly of the debris trap, wherein the fluid has a first density; and
wherein the lower screen of the lower assembly is a thru-tubing screen, and the upper screen of the upper assembly is a thru-tubing screen, and wherein the upper assembly comprises a ball check valve having a ball with a second density, wherein the second density is less than the first density.
8. The system of claim 7 , wherein the check valve of the lower assembly is a ball check valve that is closed when the fluid flows in a forward direction, allowing the fluid and debris smaller than a gauge of the thru-tubing screen of the lower assembly to leave the chamber, and open when the fluid flows in a reverse direction, allowing the fluid and debris to enter the chamber;
and further wherein the ball check valve of the upper assembly is open when the fluid flows in the forward direction, allowing the fluid and debris to enter the chamber, and closed when the fluid flows in the reverse direction, allowing the fluid and debris smaller than a gauge of the thru-tubing screen of the upper assembly to leave the chamber.
9. The system of claim 7 , wherein the debris trap is positioned in the workstring above the reversing tool, wherein the fluid flows through the upper assembly, the chamber, and then the lower assembly of the debris trap.
10. The system of claim 1 , wherein the reversing tool further comprises a seal on a side surface of the reversing tool, and the seal divides the side surface between a lower side surface and an upper side surface, wherein the first channel extends from a central point of the top end to a first exit point on the lower side surface, and the second channel extends from a central point of the bottom end to a second exit point on the upper side surface.
11. A device for trapping debris, comprising:
a lower assembly having a lower screen and a check valve, wherein the lower screen is a thru-tubing screen;
an upper assembly having an upper screen and a check valve, wherein the upper screen is a thru-tubing screen, and wherein the check valve of the upper assembly is a ball check valve having a ball with a first density that is buoyant when submerged in fluid having a second density, wherein the second density is larger than the first density;
a chamber formed between the lower assembly and the upper assembly;
wherein the check valve of the lower assembly is a ball check valve that is closed when the fluid flows in a forward direction, allowing the fluid and debris smaller than a gauge of the thru-tubing screen of the lower assembly to leave the chamber, and open when the fluid flows in a reverse direction, allowing the fluid and debris to enter the chamber; and
wherein the ball check valve of the upper assembly is open when the fluid flows in the forward direction, allowing the fluid and debris to enter the chamber, and closed when the fluid flows in the reverse direction, allowing the fluid and debris smaller than a gauge of the thru-tubing screen of the upper assembly to leave the chamber.
12. The device of claim 11 , wherein the lower screen and the upper screen have a substantially similar gauge.
13. A system for cleaning an annulus in a wellbore or riser, comprising:
a workstring comprising a plurality of drill pipes positioned in a wellbore or riser, wherein the plurality of drill pipes form a conduit for a fluid to flow through the workstring, and wherein an outer diameter of the plurality of drill pipes and an inner diameter of the wellbore or riser form an annulus for the fluid to flow through;
a reversing tool positioned in the workstring, the reversing tool having a body with a bottom end and a top end, a first channel in fluid communication with the conduit at the top end and the annulus at the bottom end, and a second channel in fluid communication with the annulus at the top end and the conduit at the bottom end;
a debris trap positioned in the workstring, the debris trap having an upper assembly, a lower assembly, and a chamber formed between the upper assembly and the lower assembly, the upper assembly comprising an upper screen, and the lower assembly comprising a lower screen and a check valve;
wherein the fluid flows through the upper assembly of the debris trap, the chamber of the debris trap, and the lower assembly of the debris trap, wherein the fluid has a first density; and
wherein the lower screen of the lower assembly is a thru-tubing screen, and the upper screen of the upper assembly is a thru-tubing screen, and wherein the upper assembly comprises a ball check valve having a ball with a second density, wherein the second density is less than the first density.
14. The system of claim 13 , wherein the check valve of the lower assembly is a ball check valve that is closed when the fluid flows in a forward direction, allowing the fluid and debris smaller than a gauge of the thru-tubing screen of the lower assembly to leave the chamber, and open when the fluid flows in a reverse direction, allowing the fluid and debris to enter the chamber;
and further wherein the ball check valve of the upper assembly is open when the fluid flows in the forward direction, allowing the fluid and debris to enter the chamber, and closed when the fluid flows in the reverse direction, allowing the fluid and debris smaller than a gauge of the thru-tubing screen of the upper assembly to leave the chamber.
15. The system of claim 13 , wherein the debris trap is positioned in the workstring above the reversing tool, wherein the fluid flows through the upper assembly, the chamber, and then the lower assembly of the debris trap.
16. The system of claim 13 , further comprising:
a blow out preventer positioned in the wellbore or riser, wherein the reversing tool and the debris trap are positioned above the blow out preventer in the wellbore or riser.
17. The system of claim 13 , further comprising:
a control screen positioned between the conduit of the plurality of drill pipes and the annulus between the plurality of drill pipes and the wellbore or riser, wherein the control screen is configured to filter contaminants from the fluid flowing between the annulus and the conduit.
18. The system of claim 13 , wherein the reversing tool further comprises a seal, and an outer diameter of the seal is larger than an outer diameter of the body of the reversing tool.
19. The system of claim 13 , wherein the first channel extends between a first opening at the top end and a second opening at the bottom end and the second channel extends between a first opening at the bottom end and a second opening at the top end, wherein cross sectional areas of the second openings of the first and second channels are larger than cross sectional areas of the first openings of the first and second channels.