US20160168950A1 - Mill valve system - Google Patents
Mill valve system Download PDFInfo
- Publication number
- US20160168950A1 US20160168950A1 US14/569,967 US201414569967A US2016168950A1 US 20160168950 A1 US20160168950 A1 US 20160168950A1 US 201414569967 A US201414569967 A US 201414569967A US 2016168950 A1 US2016168950 A1 US 2016168950A1
- Authority
- US
- United States
- Prior art keywords
- sleeve
- interior
- housing
- fluid flow
- port
- 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.)
- Abandoned
Links
- 239000012530 fluid Substances 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 17
- 230000037361 pathway Effects 0.000 claims abstract 2
- 230000000717 retained effect Effects 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims 3
- 238000005553 drilling Methods 0.000 abstract description 7
- 230000014759 maintenance of location Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000007792 addition Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/12—Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
- E21B34/102—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with means for locking the closing element in open or closed position
- E21B34/103—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with means for locking the closing element in open or closed position with a shear pin
-
- E21B2034/007—
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/06—Sleeve valves
Definitions
- Multilateral well drilling and production where a wellbore may have multiple wells branching off of a common wellbore have become increasingly important as a way to both maximize drilling efficiency and to minimize the wellsite footprint on the surface.
- a main wellbore was drilled. Once completed a packer was set in the well at a location in the well corresponding to the location that the window for the first branch or sidetrack well was desired. Once the packer was set the tool string was removed from the well and a measuring device was run into the well to determine the orientation of the keyslot or orientation device on top of the packer. After determining the orientation of the keyslot the measuring device was removed from the well and the whipstock/mill assembly was run into the well. A key on the bottom of the whipstock/mill assembly was preset on the surface, based upon the data gathered by the measuring device, so that the whipstock/mill assembly would be pointing in the desired direction when the whipstock/mill assembly was landed on the packer. The whipstock/mill assembly may then be used to cut a window into the casing so that a second well or branch may be drilled from the window and produced through the common wellbore.
- the single trip whipstock/mill assembly has the packer or anchor attached beneath the whipstock/mill assembly and the measuring device, usually a measuring while drilling or MWD tool, is attached above the whipstock mill assembly.
- the MWD tool uses pressure pulses to send a signal to the surface that notifies the operator of the orientation and direction of the MWD tool and thus the orientation of the whipstock/mill assembly.
- To send the signal the MWD tool requires power to sense its direction and orientation as well as to send the signal to the surface. The power is provided by the drilling fluid.
- a typical MWD tool requires a flow rate from between 200 gallons per minute or GPM to about 1500 GPM.
- the present invention fulfills these needs and provides further related advantages.
- the present invention is an improved bypass valve that allows the packer to be set at the proper depth while allowing the operator to use the MWD tool to properly orient the whipstock/mill assembly.
- the present invention also allows the operator to redirect the fluid flow, after setting the packer, so that full flow can pass through the mill during the cutting operation to remove the cuttings.
- the bypass valve is situated in the internal bore of the mill.
- the outer housing of the valve is attached directly to the internal bore of the mill, although the valve may be placed anywhere in the fluid flow above the packer.
- the valve also has an inner sleeve.
- the housing typically has at least three sets of ports.
- a first port is located in the lower end of the valve housing and is essentially concentric with the housing.
- the first set of ports is typically a single port but any number of ports could be utilized.
- the first port may be a nozzle that allows flow though the valve so that the operator may flow a sufficient amount of fluid through the MWD tool to power the MWD tool allowing it to send a signal to the surface so that the assembly may be appropriately oriented.
- the first port is calibrated to allow a preset amount of fluid flow through the port at or below a certain pressure which typically allows the MWD tool to operate. By increasing the fluid flow through the port the pressure in the assembly may be increased in the valve so that the packer may be set upon demand.
- a second set of ports are located towards the lower end of the valve housing.
- the second set of ports are large bore ports to bypass the restriction of the nozzle formed by the first port thereby allowing essentially full bore flow through the valve once the MWD tool is oriented and the packer/anchor is actuated hydraulically.
- a third set of ports is typically a single port and is connected via a capillary tube to allow the operator to set the packer when desired.
- the sleeve is situated in the housing so that the second set of ports is obstructed by the sleeve while the third port is open.
- a shear device or lock retains the sleeve so that when fluid flows from the surface at a predetermined rate, the fluid flow will cause a pressure rise in the valve. At a calculated pressure the shear device is released allowing the sleeve to move.
- the shear device may be a shear screw, a c-ring, a pin, a cam, or any other type of device that releases upon a preset threshold of force.
- the retention device may be a retainer screw, a pin, a c-ring, a retention profiled mating component or any other type that results in a retainer mode.
- a latch device may hold the sleeve in the second position thereby reducing the sleeve's ability to return to the first position.
- FIG. 1 depicts a mill valve in its closed or run-in condition.
- FIG. 2 is an orthogonal depiction of the mill valve in FIG. 1 .
- FIG. 3 is a depiction of the mill valve in its open.
- FIG. 4 is an orthogonal depiction of the mill valve in FIG. 3 .
- FIG. 5 is an alternative embodiment of an open mill valve where the interior sleeve is prevented from any further movement towards the bottom of the well by end cap.
- FIG. 6 is an alternative embodiment of an open mill valve where the interior sleeve is prevented from any further movement towards the bottom of the well by a pin.
- FIG. 1 depicts a mill bypass valve of the present invention in its closed or run-in condition.
- the mill body 100 has an upper end one or two and a lower end 104 attached to the exterior of the mill body in a channel 106 is a capillary tube 110 .
- the capillary tube 110 is in turn connected to a fitting 112 that is in turn attached, typically by threads but welding, adhesives, or any other means known could be used, to a port 114 in the mill body 110 .
- the mill valve 120 has a housing 122 that may be attached to the interior surface 116 of the mill body 100 .
- the housing 122 may be attached to the interior surface 116 of the mill body 100 by threads, press fit, welding, snap rings, or any other means known in the industry.
- the housing 122 is retained against further downward movement towards the lower end 104 of the mill body 100 by mill body shoulder 124 which interacts with mill valve shoulder 12 .
- the housing 122 is retained against upward movement towards the upper end 102 of the mill body 100 by at least one retaining screw 128 . While the retaining screw 128 is shown, any type of retaining means such as snap ring or retention means may be used.
- the retaining screw 128 is typically threaded into a channel 130 that is cut in the mill body 100 .
- the channel 130 in the mill body 100 is in turn aligned with the channel 132 in the housing 122 of the mill valve 120 .
- the channel 130 has a first larger diameter 134 towards the exterior of the housing 122 and a second smaller diameter 136 towards the interior of the housing 122 .
- the mill valve 120 also has an interior sleeve 140 .
- the interior sleeve 140 is concentric with the housing 122 . Additionally the interior sleeve's 140 outer surface 142 abuts the housing's 122 inner surface 144 .
- the interior sleeve 140 also has a channel 146 .
- the channel 146 is the same diameter as the second smaller diameter 136 and is aligned with channel 132 and typically has a shear means such as a shear screw or shear pin 147 is inserted partly into channel 146 and partly into channel 130 .
- a port 150 Towards the lower end 104 of the interior sleeve 140 is a port 150 .
- the port 150 is configured such that its smallest diameter 154 is smaller than the inner diameter 152 of the interior sleeve 140 .
- At least a portion of the interior sleeve 140 typically towards the lower end 104 has a diameter 156 that extends past the interior surface 144 of the housing 122 .
- Interior sleeve 140 also has a recessed channel 160 that allows pin 162 to extend radially inward beyond the housing's 122 inner surface 144 .
- Ports 174 are formed through interior sleeve 140 allow access from the interior of interior sleeve 140 to the exterior of interior sleeve 140 .
- multiple ports 174 are spaced circumferentially around the interior sleeve 140
- the interior sleeve 140 additionally has a series of packer ports 180 that are formed through the interior sleeve 140 to allow access from the interior of interior sleeve 140 to the exterior of interior sleeve 140 .
- Packer ports 180 may be isolated from ports 174 by use of a seal such as O-ring 181 .
- Interior sleeve 122 also has a set of ports 186 that when the mill valve 120 is in the closed or run-in position the ports 186 are aligned with packer ports 180 to allow access from the interior of interior sleeve 140 , through packer ports 180 , through ports 186 , through to fitting 112 , and to capillary tube 110 .
- the mill valve 120 as depicted in FIG. 1 is in its closed or run-in condition.
- a fluid is pumped through the interior of the mill valve as depicted by arrows 182 .
- the fluid as it is pumped through the interior sleeve 140 of the mill valve 120 the fluid exits the interior sleeve 140 through port 150 .
- the flow area of port 150 is calculated so that a sufficient amount of fluid is able to pass through port 150 at a first predetermined pressure such that the amount of fluid passing through port 150 is sufficient to operate the measuring while drilling tool upstream of the mill valve 120 .
- the fluid moving through the interior sleeve 140 is in fluid communication with capillary tube 110 through ports 180 in the interior sleeve 140 , through ports 186 in the housing 122 , through fitting 112 , and finally connecting to capillary tube 110 allowing any pressure exerted by the fluid on the interior of interior sleeve 140 to be transmitted via the capillary tubing to the packer (not shown) downstream of the mill valve 120 .
- the pressure exerted on the downstream packer is insufficient to actuate the downstream packer.
- FIG. 2 is an orthogonal depiction of the mill valve 120 in FIG. 1 without showing the mill body 100 .
- the reference numerals and descriptions from FIG. 1 are applicable to the mill valve body 120 shown in FIG. 2 .
- FIG. 3 is a depiction of the mill valve 120 after the fluid flow through port 150 has been increased such that the third predetermined pressure level is reached.
- the force exerted upon the interior sleeve 140 causes the interior sleeve 140 to shear the shear pin 147 and further forcing the interior sleeve 140 to move to the right or towards the lower end 104 of the mill body 100 .
- the interior sleeve 140 shifted to the right ports 186 and 180 no longer line up thereby isolating capillary tube 110 and the packer below the mill assembly. Additionally with the interior sleeve 140 shifted to the right fluid access through port 174 in the interior sleeve 140 is facilitated.
- the restricted area of port 150 is no longer able to restrict fluid flow through the interior sleeve 140 therefore the fluid flow may be increased without an additional rise in pressure through the mill valve 120 .
- the increased fluid flow is useful to allow the fluid to flow through the mill when the mill is in operation and to remove the particles produced as the mill cuts.
- Pin 162 may be a screw, a pin, or formed as a part of the housing 122 .
- FIG. 4 is an orthogonal depiction of the mill valve 120 in FIG. 3 without showing the mill body 100 .
- the reference numerals and descriptions from FIG. 1 are applicable to the mill valve body 120 shown in FIG. 4 .
- FIG. 5 is an alternative embodiment of the open mill valve depicted in FIG. 3 .
- the interior sleeve 240 is prevented from any further movement towards the bottom of the well by end cap 262 .
- End cap 262 has a shoulder 263 that with interior sleeve shifted towards the bottom of the well contacts shoulder 265 of the housing 222 to prevent any further movement towards the bottom of the well by interior sleeve 140 .
- End cap 262 is coupled to the interior sleeve 245 threads 267 . While in this instance threads 267 are shown to couple end cap 262 to interior sleeve 240 pins, welding, or any other means known may be used a couple interior sleeve 242 end cap 262 . Additionally the end cap 262 may be formed as an integral part of interior sleeve 242 .
- FIG. 6 is an alternative embodiment of the open mill valve depicted in FIG. 3 .
- the interior sleeve 340 is prevented from any further movement towards the bottom of the well by pin 362 .
- Housing 322 has at least one slot 363 milled through it.
- Pin 362 is attached to the interior sleeve 340 , by screwing it into place, pressing it into place, welding it into place, formed as a part of, or any other means known in the industry, such that a portion of pin 362 extends into slot 363 .
- As interior sleeve 340 is forced towards the lower end of the well pen 362 moves within slot 363 until a portion of pin 362 rests again shoulder 367 thereby stopping further movement of interior sleeve 340 towards the bottom of the well.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Lift Valve (AREA)
Abstract
A bypass valve and method of utilizing a bypass valve located inside of a tubular or mill that allows one set of equipment to operate, operating a second tool on demand, and then providing a fluid pathway for at least a third device to operate. The bypass valve has a through bore with the restriction. Fluid flows through the restriction at a first rate that is sufficient to operate a measuring while drilling tool. The fluid flow is then increased to a second rate where the restriction causes an increase in pressure within the bypass valve. The increase in pressure allows a packer typically below the bypass valve to be set. Fluid flow is then increased to a third rate causing a further increase in pressure within the bypass valve due to the restriction. The third pressure level allows an interior sleeve in the bypass valve to shift thereby isolating the downhole tool such as a packer while providing a new fluid flow path that partially bypasses the restriction allowing an even greater flow rate through the bypass valve.
Description
- Multilateral well drilling and production, where a wellbore may have multiple wells branching off of a common wellbore have become increasingly important as a way to both maximize drilling efficiency and to minimize the wellsite footprint on the surface.
- In the past, a main wellbore was drilled. Once completed a packer was set in the well at a location in the well corresponding to the location that the window for the first branch or sidetrack well was desired. Once the packer was set the tool string was removed from the well and a measuring device was run into the well to determine the orientation of the keyslot or orientation device on top of the packer. After determining the orientation of the keyslot the measuring device was removed from the well and the whipstock/mill assembly was run into the well. A key on the bottom of the whipstock/mill assembly was preset on the surface, based upon the data gathered by the measuring device, so that the whipstock/mill assembly would be pointing in the desired direction when the whipstock/mill assembly was landed on the packer. The whipstock/mill assembly may then be used to cut a window into the casing so that a second well or branch may be drilled from the window and produced through the common wellbore.
- In order to improve the efficiency of the drilling process, operators have streamlined the sidetracking operation by running the packer, the measuring device, and the whipstock/mill assembly into the well in a single operation. The typical packer used in single trip sidetrack operations is a hydraulically actuated packer.
- Typically, the single trip whipstock/mill assembly has the packer or anchor attached beneath the whipstock/mill assembly and the measuring device, usually a measuring while drilling or MWD tool, is attached above the whipstock mill assembly. The MWD tool uses pressure pulses to send a signal to the surface that notifies the operator of the orientation and direction of the MWD tool and thus the orientation of the whipstock/mill assembly. To send the signal the MWD tool requires power to sense its direction and orientation as well as to send the signal to the surface. The power is provided by the drilling fluid. A typical MWD tool requires a flow rate from between 200 gallons per minute or GPM to about 1500 GPM.
- One of the difficulties in utilizing a hydraulically actuated packer in the same assembly as an MWD tool is the requirement to provide sufficient hydraulic power to the MWD tool without prematurely setting the packer.
- The present invention fulfills these needs and provides further related advantages.
- The present invention is an improved bypass valve that allows the packer to be set at the proper depth while allowing the operator to use the MWD tool to properly orient the whipstock/mill assembly. The present invention also allows the operator to redirect the fluid flow, after setting the packer, so that full flow can pass through the mill during the cutting operation to remove the cuttings.
- In an embodiment of the invention, the bypass valve is situated in the internal bore of the mill. The outer housing of the valve is attached directly to the internal bore of the mill, although the valve may be placed anywhere in the fluid flow above the packer. The valve also has an inner sleeve. The housing typically has at least three sets of ports.
- A first port is located in the lower end of the valve housing and is essentially concentric with the housing. The first set of ports is typically a single port but any number of ports could be utilized. The first port may be a nozzle that allows flow though the valve so that the operator may flow a sufficient amount of fluid through the MWD tool to power the MWD tool allowing it to send a signal to the surface so that the assembly may be appropriately oriented. The first port is calibrated to allow a preset amount of fluid flow through the port at or below a certain pressure which typically allows the MWD tool to operate. By increasing the fluid flow through the port the pressure in the assembly may be increased in the valve so that the packer may be set upon demand.
- A second set of ports are located towards the lower end of the valve housing. The second set of ports are large bore ports to bypass the restriction of the nozzle formed by the first port thereby allowing essentially full bore flow through the valve once the MWD tool is oriented and the packer/anchor is actuated hydraulically. A third set of ports is typically a single port and is connected via a capillary tube to allow the operator to set the packer when desired.
- The sleeve is situated in the housing so that the second set of ports is obstructed by the sleeve while the third port is open. A shear device or lock retains the sleeve so that when fluid flows from the surface at a predetermined rate, the fluid flow will cause a pressure rise in the valve. At a calculated pressure the shear device is released allowing the sleeve to move. The shear device may be a shear screw, a c-ring, a pin, a cam, or any other type of device that releases upon a preset threshold of force.
- When released the sleeve travels a preset distance which upon reaching the sleeve is engaged by a retention device. The retention device may be a retainer screw, a pin, a c-ring, a retention profiled mating component or any other type that results in a retainer mode.
- In the second position, after the shear device has released the sleeve, the released sleeve blocks third port preventing or minimizing any further passage of fluid though the third port while opening second set of ports to allow essentially the sleeve's full bore fluid flow through the valve. In some embodiments of the present invention a latch device may hold the sleeve in the second position thereby reducing the sleeve's ability to return to the first position.
- In previous bypass valves the port or other fluid connection, that is used to set the packer, is not closed allowing high pressure and sometimes erosive fluid to jet about the mill reducing the mill's efficiency.
-
FIG. 1 depicts a mill valve in its closed or run-in condition. -
FIG. 2 is an orthogonal depiction of the mill valve inFIG. 1 . -
FIG. 3 is a depiction of the mill valve in its open. -
FIG. 4 is an orthogonal depiction of the mill valve inFIG. 3 . -
FIG. 5 is an alternative embodiment of an open mill valve where the interior sleeve is prevented from any further movement towards the bottom of the well by end cap. -
FIG. 6 is an alternative embodiment of an open mill valve where the interior sleeve is prevented from any further movement towards the bottom of the well by a pin. -
FIG. 1 depicts a mill bypass valve of the present invention in its closed or run-in condition. Themill body 100 has an upper end one or two and alower end 104 attached to the exterior of the mill body in achannel 106 is acapillary tube 110. Thecapillary tube 110 is in turn connected to afitting 112 that is in turn attached, typically by threads but welding, adhesives, or any other means known could be used, to aport 114 in themill body 110. - The
mill valve 120 has ahousing 122 that may be attached to theinterior surface 116 of themill body 100. Thehousing 122 may be attached to theinterior surface 116 of themill body 100 by threads, press fit, welding, snap rings, or any other means known in the industry. In the embodiment shown inFIG. 1 thehousing 122 is retained against further downward movement towards thelower end 104 of themill body 100 bymill body shoulder 124 which interacts with mill valve shoulder 12. Additionally, thehousing 122 is retained against upward movement towards theupper end 102 of themill body 100 by at least one retainingscrew 128. While theretaining screw 128 is shown, any type of retaining means such as snap ring or retention means may be used. Theretaining screw 128 is typically threaded into achannel 130 that is cut in themill body 100. Thechannel 130 in themill body 100 is in turn aligned with thechannel 132 in thehousing 122 of themill valve 120. Thechannel 130 has a firstlarger diameter 134 towards the exterior of thehousing 122 and a secondsmaller diameter 136 towards the interior of thehousing 122. - The
mill valve 120 also has aninterior sleeve 140. Theinterior sleeve 140 is concentric with thehousing 122. Additionally the interior sleeve's 140outer surface 142 abuts the housing's 122inner surface 144. Theinterior sleeve 140 also has achannel 146. Thechannel 146 is the same diameter as the secondsmaller diameter 136 and is aligned withchannel 132 and typically has a shear means such as a shear screw orshear pin 147 is inserted partly intochannel 146 and partly intochannel 130. - Towards the
lower end 104 of theinterior sleeve 140 is aport 150. Theport 150 is configured such that itssmallest diameter 154 is smaller than theinner diameter 152 of theinterior sleeve 140. - At least a portion of the
interior sleeve 140 typically towards thelower end 104 has adiameter 156 that extends past theinterior surface 144 of thehousing 122.Interior sleeve 140 also has a recessedchannel 160 that allowspin 162 to extend radially inward beyond the housing's 122inner surface 144.Ports 174 are formed throughinterior sleeve 140 allow access from the interior ofinterior sleeve 140 to the exterior ofinterior sleeve 140. Typicallymultiple ports 174 are spaced circumferentially around theinterior sleeve 140 - The
interior sleeve 140 additionally has a series ofpacker ports 180 that are formed through theinterior sleeve 140 to allow access from the interior ofinterior sleeve 140 to the exterior ofinterior sleeve 140.Packer ports 180 may be isolated fromports 174 by use of a seal such as O-ring 181.Interior sleeve 122 also has a set ofports 186 that when themill valve 120 is in the closed or run-in position theports 186 are aligned withpacker ports 180 to allow access from the interior ofinterior sleeve 140, throughpacker ports 180, throughports 186, through to fitting 112, and tocapillary tube 110. - The
mill valve 120 as depicted inFIG. 1 is in its closed or run-in condition. In the closed condition a fluid is pumped through the interior of the mill valve as depicted byarrows 182. The fluid as it is pumped through theinterior sleeve 140 of themill valve 120 the fluid exits theinterior sleeve 140 throughport 150. The flow area ofport 150 is calculated so that a sufficient amount of fluid is able to pass throughport 150 at a first predetermined pressure such that the amount of fluid passing throughport 150 is sufficient to operate the measuring while drilling tool upstream of themill valve 120. The fluid moving through theinterior sleeve 140 is in fluid communication withcapillary tube 110 throughports 180 in theinterior sleeve 140, throughports 186 in thehousing 122, through fitting 112, and finally connecting tocapillary tube 110 allowing any pressure exerted by the fluid on the interior ofinterior sleeve 140 to be transmitted via the capillary tubing to the packer (not shown) downstream of themill valve 120. As long as fluid flow throughinterior sleeve 140 remains below the first predetermined level the pressure exerted on the downstream packer is insufficient to actuate the downstream packer. - As fluid flow through
interior sleeve 140 is increased above the first predetermined level to a second predetermined level thereby increasing the pressure upon the downstream packer via thecapillary tube 110. The pressure increase above the first predetermined level is due to the fixed area ofport 150.Port 150 has a maximum amount of fluid that may pass through it at any given pressure level. In order to force additional fluid flow through theport 150 the pressure of the fluid must increase. In this case, upon demand, the pressure is increased to a second predetermined pressure level in order to actuate the downstream packer. While the second predetermined pressure level is sufficient to actuate the downstream packer, the pressure acting upon the surfaces of theinterior sleeve 140 are insufficient to overcome the shear means such asshear pin 147. Therefore theinterior sleeve 140 is retained in place at the second predetermined pressure level. -
FIG. 2 is an orthogonal depiction of themill valve 120 inFIG. 1 without showing themill body 100. The reference numerals and descriptions fromFIG. 1 are applicable to themill valve body 120 shown inFIG. 2 . -
FIG. 3 is a depiction of themill valve 120 after the fluid flow throughport 150 has been increased such that the third predetermined pressure level is reached. Once the pressure level is increased to the third predetermined level, the force exerted upon theinterior sleeve 140 causes theinterior sleeve 140 to shear theshear pin 147 and further forcing theinterior sleeve 140 to move to the right or towards thelower end 104 of themill body 100. With theinterior sleeve 140 shifted to theright ports capillary tube 110 and the packer below the mill assembly. Additionally with theinterior sleeve 140 shifted to the right fluid access throughport 174 in theinterior sleeve 140 is facilitated. By allowing the fluid to flow around the lower end of the exterior ofinterior sleeve 140 as indicated byarrows 200 the restricted area ofport 150 is no longer able to restrict fluid flow through theinterior sleeve 140 therefore the fluid flow may be increased without an additional rise in pressure through themill valve 120. The increased fluid flow is useful to allow the fluid to flow through the mill when the mill is in operation and to remove the particles produced as the mill cuts. Finally with theinterior sleeve 140 shifted to the right theshoulder 172 on the exterior surface ofinterior sleeve 140contacts pin 162 and is thereby prevented from moving any further towards thelower end 104 ofmill body 100.Pin 162 may be a screw, a pin, or formed as a part of thehousing 122. -
FIG. 4 is an orthogonal depiction of themill valve 120 inFIG. 3 without showing themill body 100. The reference numerals and descriptions fromFIG. 1 are applicable to themill valve body 120 shown inFIG. 4 . -
FIG. 5 is an alternative embodiment of the open mill valve depicted inFIG. 3 . InFIG. 5 theinterior sleeve 240 is prevented from any further movement towards the bottom of the well byend cap 262.End cap 262 has ashoulder 263 that with interior sleeve shifted towards the bottom of the well contacts shoulder 265 of thehousing 222 to prevent any further movement towards the bottom of the well byinterior sleeve 140.End cap 262 is coupled to the interior sleeve 245threads 267. While in thisinstance threads 267 are shown to coupleend cap 262 tointerior sleeve 240 pins, welding, or any other means known may be used a couple interior sleeve 242end cap 262. Additionally theend cap 262 may be formed as an integral part of interior sleeve 242. -
FIG. 6 is an alternative embodiment of the open mill valve depicted inFIG. 3 . InFIG. 6 theinterior sleeve 340 is prevented from any further movement towards the bottom of the well bypin 362.Housing 322 has at least oneslot 363 milled through it.Pin 362 is attached to theinterior sleeve 340, by screwing it into place, pressing it into place, welding it into place, formed as a part of, or any other means known in the industry, such that a portion ofpin 362 extends intoslot 363. Asinterior sleeve 340 is forced towards the lower end of the well pen 362 moves withinslot 363 until a portion ofpin 362 rests againshoulder 367 thereby stopping further movement ofinterior sleeve 340 towards the bottom of the well. - While the embodiments are described with reference to various implementations and exploitations, it will be understood that these embodiments are illustrative and that the scope of the inventive subject matter is not limited to them. Many variations, modifications, additions and improvements are possible. For example, the implementations and techniques used herein may be applied to any bypass valve in a tubular.
- Plural instances may be provided for components, operations or structures described herein as a single instance. In general, structures and functionality presented as separate components in the exemplary configurations may be implemented as a combined structure or component. Similarly, structures and functionality presented as a single component may be implemented as separate components. These and other variations, modifications, additions, and improvements may fall within the scope of the inventive subject matter.
Claims (20)
1. A method for providing alternate fluid pathways comprising:
locking a sleeve in an interior of a housing in a first position with a lock;
moving the sleeve from the first position to a second position;
restricting fluid flow through interior of the housing;
allowing fluid flow through a third port;
pressurizing the housing to overcome the lock; and
moving the sleeve from the first position to the second position.
2. The method of claim 1 wherein, fluid flow through the third port is blocked and fluid flow through the second port is allowed once the sleeve moves from the first position to the second position.
3. The method of claim 1 wherein, fluid flow through the second port is less restrictive than fluid flow through the interior of the housing.
4. The method of claim 1 wherein, the housing has a lock between the housing and the sleeve;
wherein the lock retains the sleeve in the first position.
5. The method of claim 4 wherein, the sleeve located in the interior of the housing has a second position.
6. The method of claim 1 wherein, the sleeve is retained after moving a predetermined distance.
7. The method of claim 1 wherein, a pressure drop in the fluid flow signals the lock release.
8. A hydraulic bypass valve comprising:
a housing having a through bore,
an interior sleeve within the housing through bore,
wherein the interior sleeve has an interior fluid flow path,
a fluid flow restriction in the interior fluid flow path,
the interior sleeve having a first position within the housing wherein a first port in the housing is aligned with a second port in the interior sleeve,
the interior sleeve having a second position within the housing wherein a second fluid flow path enhances the interior fluid flow path.
9. The hydraulic bypass valve of claim 8 wherein, the interior sleeve is held in the first position by a shear pin.
10. The hydraulic bypass valve of claim 8 wherein, the interior sleeve is retained in the second position by a protrusion from the housing that interacts with the interior sleeve.
11. The hydraulic bypass valve of claim 8 wherein, the interior sleeve is retained in the second position by a protrusion from the interior sleeve that interacts with the housing.
12. The hydraulic bypass valve of claim 8 wherein, the interior sleeve is retained in the second position by an endcap that interacts with the housing.
13. The hydraulic bypass valve of claim 8 wherein, the first port and the second port when aligned allow fluid access from the interior fluid flow path to an exterior of the housing.
14. A method of operating a downhole mill assembly comprising:
pumping a fluid at a first rate through a sleeve having an interior bore and a first port,
wherein the interior bore has a flow restriction,
pumping the fluid at a second rate through the sleeve to cause a pressure to reach a first predetermined level wherein the pressure increase to the first predetermined level actuates a tool through the first port,
pumping the fluid at a third rate through the sleeve to cause the pressure to reach a second predetermined level,
wherein the pressure increase to the second predetermined level moves the sleeve within a housing to access a second port.
15. The method of operating a downhole mill assembly of claim 14 wherein, accessing the second port enhances a total fluid flow through the sleeve.
16. The method of operating a downhole mill assembly of claim 14 wherein, moving the sleeve within the housing isolates the tool.
17. The method of operating a downhole mill assembly of claim 14 wherein, the interior sleeve is held in a first position by a shear pin.
18. The method of operating a downhole mill assembly of claim 14 wherein, the interior sleeve is retained in a second position by a protrusion from the housing that interacts with the interior sleeve.
19. The method of operating a downhole mill assembly of claim 14 wherein, the interior sleeve is retained in the second position by a protrusion from the interior sleeve that interacts with the housing.
20. The method of operating a downhole mill assembly of claim 14 wherein, the interior sleeve is retained in the second position by an endcap that interacts with the housing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/569,967 US20160168950A1 (en) | 2014-12-15 | 2014-12-15 | Mill valve system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/569,967 US20160168950A1 (en) | 2014-12-15 | 2014-12-15 | Mill valve system |
Publications (1)
Publication Number | Publication Date |
---|---|
US20160168950A1 true US20160168950A1 (en) | 2016-06-16 |
Family
ID=56110665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/569,967 Abandoned US20160168950A1 (en) | 2014-12-15 | 2014-12-15 | Mill valve system |
Country Status (1)
Country | Link |
---|---|
US (1) | US20160168950A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20200063511A1 (en) * | 2018-08-22 | 2020-02-27 | Baker Hughes, A Ge Company, Llc | Plug bypass tool and method |
US20220307346A1 (en) * | 2021-03-29 | 2022-09-29 | Baker Hughes Oilfield Operations Llc | Open hole multi-zone single trip completion system |
US20220389762A1 (en) * | 2021-06-04 | 2022-12-08 | Baker Hughes Oilfield Operations Llc | Mill, downhole tool with mill, method and system |
US20230027205A1 (en) * | 2021-07-23 | 2023-01-26 | Baker Hughes Oilfield Operations Llc | Expandable element configuration, method and system |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4609005A (en) * | 1985-07-19 | 1986-09-02 | Schlumberger Technology Corporation | Tubing isolation disc valve |
US5788000A (en) * | 1995-10-31 | 1998-08-04 | Elf Aquitaine Production | Stabilizer-reamer for drilling an oil well |
US5873414A (en) * | 1997-09-03 | 1999-02-23 | Pegasus International, Inc. | Bypass valve for downhole motor |
US6176327B1 (en) * | 1999-05-10 | 2001-01-23 | Atlantic Richfield Company | Method and toolstring for operating a downhole motor |
US20100089583A1 (en) * | 2008-05-05 | 2010-04-15 | Wei Jake Xu | Extendable cutting tools for use in a wellbore |
US20120055681A1 (en) * | 2009-04-16 | 2012-03-08 | Specialised Petroleum Services Group Limited | Downhole valve tool and method of use |
US20140151127A1 (en) * | 2011-05-24 | 2014-06-05 | Flexidrill Limited | Control mechanism |
US20140251691A1 (en) * | 2013-03-07 | 2014-09-11 | Robert W. Evans | Method and Apparatus for Improving the Efficiency of a Positive Displacement Motor for Drilling and Oil or Gas Well |
US8967268B2 (en) * | 2011-11-30 | 2015-03-03 | Baker Hughes Incorporated | Setting subterranean tools with flow generated shock wave |
-
2014
- 2014-12-15 US US14/569,967 patent/US20160168950A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4609005A (en) * | 1985-07-19 | 1986-09-02 | Schlumberger Technology Corporation | Tubing isolation disc valve |
US5788000A (en) * | 1995-10-31 | 1998-08-04 | Elf Aquitaine Production | Stabilizer-reamer for drilling an oil well |
US5873414A (en) * | 1997-09-03 | 1999-02-23 | Pegasus International, Inc. | Bypass valve for downhole motor |
US6176327B1 (en) * | 1999-05-10 | 2001-01-23 | Atlantic Richfield Company | Method and toolstring for operating a downhole motor |
US20100089583A1 (en) * | 2008-05-05 | 2010-04-15 | Wei Jake Xu | Extendable cutting tools for use in a wellbore |
US20120055681A1 (en) * | 2009-04-16 | 2012-03-08 | Specialised Petroleum Services Group Limited | Downhole valve tool and method of use |
US20140151127A1 (en) * | 2011-05-24 | 2014-06-05 | Flexidrill Limited | Control mechanism |
US8967268B2 (en) * | 2011-11-30 | 2015-03-03 | Baker Hughes Incorporated | Setting subterranean tools with flow generated shock wave |
US20140251691A1 (en) * | 2013-03-07 | 2014-09-11 | Robert W. Evans | Method and Apparatus for Improving the Efficiency of a Positive Displacement Motor for Drilling and Oil or Gas Well |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20200063511A1 (en) * | 2018-08-22 | 2020-02-27 | Baker Hughes, A Ge Company, Llc | Plug bypass tool and method |
US10767429B2 (en) * | 2018-08-22 | 2020-09-08 | Baker Hughes, A Ge Company, Llc | Plug bypass tool and method |
US20220307346A1 (en) * | 2021-03-29 | 2022-09-29 | Baker Hughes Oilfield Operations Llc | Open hole multi-zone single trip completion system |
WO2022212154A1 (en) * | 2021-03-29 | 2022-10-06 | Baker Hughes Oilfield Operations Llc | Open hole multi-zone single trip completion system |
US11649694B2 (en) * | 2021-03-29 | 2023-05-16 | Baker Hughes Oilfield Operations Llc | Open hole multi-zone single trip completion system |
GB2619895A (en) * | 2021-03-29 | 2023-12-20 | Baker Hughes Oilfield Operations Llc | Open hole multi-zone single trip completion system |
US20220389762A1 (en) * | 2021-06-04 | 2022-12-08 | Baker Hughes Oilfield Operations Llc | Mill, downhole tool with mill, method and system |
US11585155B2 (en) * | 2021-06-04 | 2023-02-21 | Baker Hughes Oilfield Operations Llc | Mill, downhole tool with mill, method and system |
US20230027205A1 (en) * | 2021-07-23 | 2023-01-26 | Baker Hughes Oilfield Operations Llc | Expandable element configuration, method and system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3102778B1 (en) | Milling apparatus | |
US20150136403A1 (en) | Ball seat system | |
CA2997921C (en) | Whipstock valve with nozzle bypass feature | |
US20160168950A1 (en) | Mill valve system | |
US9103184B2 (en) | Inflow control valve | |
US20130341048A1 (en) | Hydraulically Triggered Anchor | |
US20120261136A1 (en) | Selectively activatable and deactivatable wellbore pressure isolation device | |
EP2959098B1 (en) | Autofill and circulation assembly and method of using the same | |
US20170107790A1 (en) | Casing mounted metering device | |
US20240200423A1 (en) | Methods and systems associated with converting landing collar to hybrid landing collar & toe sleeve | |
US10689950B2 (en) | Apparatus, systems and methods for controlling flow communication with a subterranean formation | |
US9752390B2 (en) | Casing window assembly | |
AU2016225860B2 (en) | Casing window assembly | |
US20200240224A1 (en) | Methods and systems for disconnecting and reconnecting casing | |
GB2360538A (en) | Rotational lock system to secure a mill to a whipstock | |
EA037374B1 (en) | Casing window assembly | |
AU2014262237A1 (en) | Casing window assembly |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: INTERNATIONAL TUBULAR SERVICES LIMITED, TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DELGADO, STEVE RENE;TURCIOS, IRVIN A;REEL/FRAME:034504/0841 Effective date: 20141215 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |