Patent Application
20190345786
Not applicable.
The present disclosure relates to a downhole tool that permits fluid to selectively bypass a vibratory tool.
Vibratory tools can be used in bottom hole assemblies (BHAs) along with other tools that can use abrasive fluids, such as an abrasive perforator. Flowing an abrasive fluid through a vibratory tool would, at the very least, significantly reduce the life of the vibratory tool. Additionally, pressure drop at a perforator can be reduced due to the pressure drop across a vibratory tool.
Accordingly, there is a need for a downhole tool that will permit the abrasive fluid to bypass the vibratory tool until it is desired for the vibratory tool to be used.
This disclosure is directed toward a downhole tool that includes an inlet for receiving fluid into a housing of the downhole tool. The downhole tool further includes a vibratory apparatus at least partially disposed within the housing of the downhole tool, the vibratory apparatus having an operational flow path disposed therein to operate the vibratory apparatus when fluid flowing through the operational flow path is above a predetermined pressure. Furthermore, the downhole tool has a bypass passageway disposed in the housing for providing an additional flow path for fluid through the downhole tool to prevent fluid from reaching the predetermined pressure in the operational flow path of the vibratory apparatus, the bypass passageway selectively blockable such that fluid in the operational flow path is increased above the predetermined pressure to activate the vibratory apparatus when the bypass passageway is blocked.
This disclosure is also directed toward a method of using the downhole tool described herein. The method includes the step of running a bottom hole assembly into a wellbore. Fluid is then flowed into the bottom hole assembly to perform oil and gas operations. A vibratory operation can then be initiated in the wellbore. The method can then include the step of stopping the vibratory operation in the wellbore. Once the vibratory operation is stopped, a oil and gas operations are continued.
The present disclosure relates to a bypass tool 10 for running down into a well as part of a bottom hole assembly (BHA). The bypass tool 10 is used to divert the flow of fluid to a vibratory tool 12, which is selectively in fluid communication with the bypass tool 10. The vibratory tool 12 can be any tool known in the art for providing vibration and/or agitation to a BHA to advance the BHA in the well, such as the Thru Tubing Solutions, Inc.'s XRV, National Oilwell Varco's Agitator and Oil State's Tempress tool.
The fluid can flow around or through a portion of the vibratory tool 12 and then be diverted to the vibratory tool 12 to operate the vibratory tool 12. The vibratory tool 12 can be disposed within the bypass tool 10, partially within the bypass tool 10 or positioned adjacent to the bypass tool 10 on the downhole side of the bypass tool 10. Generally, the vibratory tool 12 can include an operational flow path 14 having an inlet 16 and an outlet 18. When fluid is permitted to flow into the operational flow path 14, the vibratory tool 12 operates as intended. It should be understood and appreciated that the vibratory tool 12 does not have to be a completely separate tool. For example, the bypass tool 10 may include components that cause the bypass tool 10 to vibrate.
Referring now to
The screen 28 is disposed downstream of the inlet 22 of the bypass tool 10 and upstream of the vibratory tool 12 to block the flow of objects to the operational flow path 14 of the vibratory tool 12 and permit the flow of fluid to flow into the operational flow path 14 of the vibratory tool 12 and the bypass passageway 26. The screen 28 can be sized and shaped in any manner such that it prevents the flow of certain sized objects from entering an annulus area 34 disposed adjacent to the inlet 16 of the operational flow path 14 of the vibratory tool 12. In one embodiment, the screen 28 is a half cylinder shape to block the flow of objects for half of an internal portion 36 of the bypass tool 10 upstream of the vibratory tool 12. The screen 28 also acts to direct a fluid blocking member 38 toward the bypass passageway 26 disposed in the bypass tool 10.
In another embodiment of the present disclosure, a second screen 40 can be provided such that the second screen 40 is disposed at the inlet 16 of the vibratory tool 12. The second screen 40 prevents the fluid blocking member 38 from entering the operational flow path 14 of the vibratory tool 12 and forces the fluid blocking member 38 into the bypass passageway 26 wherein the fluid blocking member 38 will engage a seat 42 (or shoulder) disposed in the bypass passageway 26 to prevent the flow of fluid through the bypass passageway 26. When fluid is blocked from flowing through the bypass passageway 26, the fluid is forced to flow exclusively through the operational flow path 14 of the vibratory tool 12 activating the vibratory tool 12 and causing it to vibrate/agitate.
In use, fluid is flowed into the inlet 22 of the bypass tool 10 and permitted to flow through the operational flow path 14 of the vibratory tool 12 and the bypass passageway 26. When fluid is permitted to flow through the operational flow path 14 and the bypass passageway 26, the vibratory tool 12 is not generating a pressure drop, thus there is no vibration or agitation occurring. When vibration characteristics are desired, the fluid blocking member 38 is pumped down into the bypass tool 10. Due to the first and second screens 28 and 40, the fluid blocking member 38 is directed toward the bypass passageway 26 where the fluid blocking member 38 ultimately ends up contacting the seat 42 disposed in the bypass passageway 26 to block the flow of fluid through the bypass passageway 26. Once fluid is blocked from flowing through the bypass passageway 26, all fluid is directed toward the operational flow path 14 of the vibratory tool 12 which causes the vibratory tool 12 to vibrate.
In yet another embodiment of the present disclosure, shown in
Similar to the first bypass tool 10, the second bypass tool 50 includes a housing 60, an inlet 62 for allowing fluid to flow into the second bypass tool 50, an outlet 64 for allowing fluid to flow out of the second bypass tool 50, a bypass passageway 66 disposed between the inlet 62 and the outlet 64 of the second bypass tool 52 for providing an alternate flow path for fluid passing through the second bypass tool 52, and a screen 68 (or grate) to divert the flow of objects from the operational flow path 54 of the second vibratory tool 52.
The screen 68 is disposed downstream of the inlet 62 of the second bypass tool 50 and upstream of the second vibratory tool 52 to block the flow of objects to the operational flow path 54 of the second vibratory tool 52 and permit the flow of fluid to flow to the operational flow path 54 of the second vibratory tool 52 and the bypass passageway 66 of the second bypass tool 50. The screen 68 can be sized and shaped in any manner such that it prevents the flow of certain sized objects from entering an annulus area 70 disposed adjacent to the inlet 56 of the operational flow path 54 of the second vibratory tool 52. In one embodiment, the screen 68 is a half cylinder shape to block the flow of objects for half of the internal portion of the second bypass tool 50 upstream of the second vibratory tool 52. The screen 68 also acts to direct a second fluid blocking member 72 toward the bypass passageway 66 in the second bypass tool 50.
In another embodiment of the present disclosure, a second screen 74 can be provided in the second bypass tool 50 such that the second screen 74 is disposed at or near the inlet 56 of the second vibratory tool 52. The second screen 74 of the second bypass tool 50 prevents the second fluid blocking member 72 from entering the operational flow path 54 of the second vibratory tool 52 and forces the second fluid blocking member 72 into the bypass passageway 66 of the second bypass tool 50 wherein the second fluid blocking member 72 will engage a seat 76 (or shoulder) disposed in the bypass passageway 66 of the second bypass tool 50 to prevent the flow of fluid through the bypass passageway 66. When fluid is blocked from flowing through the bypass passageway 66 of the second bypass tool 50, the fluid is forced to flow exclusively through the operational flow path 54 of the second vibratory tool 52 activating the second vibratory tool 52, which would vibrate and/or agitate the BHA.
It should be understood that the second fluid blocking member 72 is smaller than the first fluid blocking member 38, which allows the second fluid blocking member 72 to flow through the bypass passageway 26 disposed in the first bypass tool 10 and enter the second bypass tool 50 and ultimately engage the seat 76 disposed in the bypass passageway 66 of the second bypass tool 50. While not shown, it should be understood and appreciated that there can be additional bypass tools and vibratory tools implemented. For example, in the case of three bypass tools, there would be a third fluid blocking member that was smaller than the first and second fluid blocking members 38 and 72. This would permit the third fluid blocking member to pass through the bypass passageways 26 and 66 of the first and second bypass tools 10 and 50 and engage a seat disposed in a bypass passageway disposed in the third bypass tool.
In use, fluid is flowed into the inlet 22 of the first bypass tool 10 and permitted to flow through the operational flow path 14 of the first vibratory tool 12 and the bypass passageway 26 disposed in the first bypass tool 10. The fluid is then permitted to flow from the outlet 24 of the first bypass tool 10, into the inlet 62 of the second bypass tool 50 and through the operational flow path 54 of the second vibratory tool 52 and the bypass passageway 66 of the second bypass tool 50. When fluid is permitted to flow through the operational flow paths 14 and 54 of the first and second vibratory tools 12 and 52 and the bypass passageways 26 and 66 of the first and second bypass tools 10 and 50, the first and second vibratory tools 12 and 52 are not generating a pressure drop, thus there is no vibration occurring at either vibratory tool 12 or 52.
When vibration characteristics are desired, the second fluid blocking member 72 is pumped down into and through the first bypass tool 10 (forced into and through the bypass passageway 26 of the first bypass tool 10 via the first and second screens 28 and 40 of the first bypass tool 10) and into the second bypass tool 50. Due to the first and second screens 68 and 74 of the second bypass tool 50, the second fluid blocking member 72 is directed toward the bypass passageway 66 of the second bypass tool 50 where the second fluid blocking member 72 ultimately ends up contacting the seat 76 disposed in the bypass passageway 66 of the second bypass tool 50 to block the flow of fluid through the bypass passageway 66 of the second bypass tool 50. Once fluid is blocked from flowing through the bypass passageway 66 of the second bypass tool 50, all fluid is directed toward the operational flow path 54 of the second vibratory tool 52 which causes the second vibratory tool 52 to vibrate.
A situation may be encountered where vibration of the first vibratory tool 12 is desired in addition to the vibration of the second vibratory tool 52, or after vibration of the first vibratory tool 12 has ceased. In this situation, the first fluid blocking member 38 is pumped down into the first bypass tool 10. Due to the first and second screens 28 and 40 of the first bypass tool 10, the first fluid blocking member 38 is directed toward the bypass passageway 26 of the first bypass tool 10 where the first fluid blocking member 38 ultimately ends up contacting the seat 42 disposed in the bypass passageway 26 of the first bypass tool 10 to block the flow of fluid through the bypass passageway 26 of the first bypass tool 10. Once fluid is blocked from flowing through the bypass passageway 26 of the first bypass tool 10, all fluid is directed toward the operational flow path 14 of the first vibratory tool 12, which causes the first vibratory tool 12 to vibrate.
The present disclosure is also directed to a method of using the downhole bypass tool. The BHA can be run down into a wellbore. Fluid can be flowed into and through the BHA to perform a variety of downhole oil and gas operations. A vibratory operation can then be initiated in the wellbore. The vibratory operation can be stopped and the oil and gas operations can then be continued. A second vibratory operation can be initiated in the wellbore. Similar to the first vibratory operation, the second vibratory operation can be stopped and the oil and gas operations can again be continued.
From the above description, it is clear that the present disclosure is well adapted to carry out the objectives and to attain the advantages mentioned herein as well as those inherent in the disclosure. While presently preferred embodiments have been described herein, it will be understood that numerous changes may be made which will readily suggest themselves to those skilled in the art and which are accomplished within the spirit of the disclosure and claims.
The present application is a continuation application of U.S. patent application having U.S. Ser. No. 15/910,364, filed Mar. 2, 2018, which is a continuation application of U.S. patent application having U.S. Ser. No. 15/024,696, filed Mar. 24, 2016, which is a national stage application of a PCT application having International Application No. PCT/US2015/035381, filed Jun. 11, 2015, which claims priority to U.S. Provisional Application having U.S. Ser. No. 62/010,546, filed Jun. 11, 2014, which claims the benefit under 35 U.S.C. 119(e), the disclosure of which is hereby expressly incorporated herein by reference.
| Number | Date | Country | |
|---|---|---|---|
| 62010546 | Jun 2014 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 15910364 | Mar 2018 | US |
| Child | 16521149 | US | |
| Parent | 15024696 | Mar 2016 | US |
| Child | 15910364 | US |
