WO2015200792A1 - Valve coudable à la demande à élément de conversion retenu - Google Patents

Valve coudable à la demande à élément de conversion retenu Download PDF

Info

Publication number
WO2015200792A1
WO2015200792A1 PCT/US2015/037975 US2015037975W WO2015200792A1 WO 2015200792 A1 WO2015200792 A1 WO 2015200792A1 US 2015037975 W US2015037975 W US 2015037975W WO 2015200792 A1 WO2015200792 A1 WO 2015200792A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
valve
conversion element
convertible
valve gate
Prior art date
Application number
PCT/US2015/037975
Other languages
English (en)
Inventor
Gregory James Alexander Andrigo
Original Assignee
Top-Co Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Top-Co Inc. filed Critical Top-Co Inc.
Publication of WO2015200792A1 publication Critical patent/WO2015200792A1/fr

Links

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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • 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
    • E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
    • E21B34/142—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools unsupported or free-falling elements, e.g. balls, plugs, darts or pistons

Definitions

  • the invention relates to convertible valves that allow for initial bi-directional fluid flow and subsequent conversion to thereafter allow only unidirectional flow.
  • Convertible valves are widely used in the oil and gas industry to provide controlled flow of fluids and slurries into vertical and horizontal wellbores.
  • Most convertible valves rely on free floating or surface deployed occlusion devices or other trigger devices to convert the valves from bi-directional to unidirectional flow.
  • the conventional valves have the potential to prematurely convert, which results in the inability to properly circulate fluids throughout the wellbore.
  • conventional valves can be unreliable and may not convert at all resulting in overfill or U-flow of fluids back up through the valve. Accordingly, improvements in the reliability and functionality of convertible valves are sought.
  • valve gate movable between a first open position and a second closed position; a seat movable between a first and second position; and a conversion element retained in the seat and responsive to fluid flow through the convertible valve by acting upon the seat to move the seat between the first and second position.
  • the seat when in the first position, maintains the valve gate in the first open position, and when the seat is moved to the second position, it allows the valve gate to move to the second closed position.
  • the valve gate may include a spring or other biasing element to move the valve gate from its first open position into its second closed position.
  • the seat is a ball seat, dart seat, or collet.
  • the seat may be any structure suitable for seating of the conversion element and capable of movement sufficient to allow the valve gate to move from its first open position to its second closed position.
  • the conversion element is a ball or a dart.
  • the conversion element may be any device capable of seating in the seat and additionally, in some embodiments, being extruded from the seat under pressure.
  • the seat is retained in position relative to the valve by one or more shear devices.
  • the shear device may be a shear screw, shear ring or shear pin, or any other device capable of shearing with a known or predetermined amount of force.
  • the conversion element is retained in the seat by at least one of a pin, a ring, and an interference fit.
  • the convertible valve contains at least one bi-directional fluid flow passage or "bypass" passage formed through the body of the seat.
  • the at least one bi-directional fluid flow passage may be defined as a recess on the periphery of the seat, or be defined partially by the seat and conversion element or there-between.
  • the fluid flow passages allow the passage of fluids up to a first pressure, and fluid flow above the first pressure causes the conversion element to act upon the seat. This causes the seat to move from its first position to its second position, which in turn causes the valve gate to move from its first open position to its second closed position.
  • different configurations of fluid flow passages and shear devices can be selected to establish a predetermined fluid flow and pressure that will shear the shear devices to convert the valve.
  • a second valve gate movable between a first open position and second closed position, and a second seat, movable between a first and second position
  • first and second valve gates are included downbore of the first valve gate and first seat.
  • the conversion element lands in and acts upon the second seat to move the second seat between the first and second position.
  • the second seat when in the first position, maintains the second valve gate in the first open position, and when the second seat is moved to the second position, it allows the second valve gate to move to the second closed position.
  • the first and second valve gates can be biased toward the respective second closed positions while still allowing passage of fluid in one direction.
  • the method includes providing a convertible valve including a valve gate, a seat, and a conversion element retained in the seat.
  • the method further includes passing a fluid through the convertible valve at a first pressure; and raising the fluid pressure to a second pressure, which causes the shear devices to shear, moving the seat, and allowing the valve gate to close.
  • the method includes attaching a second convertible valve downbore from the first valve; extruding the conversion element from the seat of the first convertible valve; and landing the conversion element in the second seat, which causes the shear devices to shear, moving the second seat, and allowing the second valve gate to close.
  • Another aspect of the invention includes a method of manufacturing a convertible valve.
  • the method includes providing a valve body, a main housing, a valve gate, a seat, and a conversion element.
  • the method further includes attaching the valve gate to the valve body, attaching the seat to the main housing, and retaining the conversion element in the seat.
  • the method further includes attaching the valve body, with attached valve gate, to the main housing containing the seat and conversion element.
  • the valve body and main housing are attached in a way that allows the seat, when in a first position, to maintain the valve gate in its open position, and the seat, when moved to its second position, allows the valve gate to move to its closed position.
  • the method includes attaching the seat to the main housing by at least one shear device.
  • the method includes retaining the conversion element in the seat by pin, ring, snap fit, or interference fit.
  • the method includes forming at least one bi-directional fluid flow passage in the seat.
  • the bi-directional fluid flow passage may be formed in the conversion element.
  • FIG. IB shows an exploded view of one embodiment of a singular convertible valve, revealing, among other parts, the shear devices and conversion element retaining ring.
  • FIG. 2A shows a cross-sectional side view of one embodiment of dual convertible valves.
  • FIG. 2B shows a partial top view taken along line BB of FIG. 2A; showing the seat, conversion element, and bi-directional fluid passages.
  • FIG. 3A shows a rotated cross-sectional view of one embodiment of convertible valves.
  • FIG. 3B shows a close-up view of the seat and conversion element with the bidirectional fluid flow passage depicted.
  • FIG. 4A shows a cross- sectional view of one embodiment of the convertible valves with the conversion element retained in the first seat.
  • FIG. 4B shows a cross-sectional view of one embodiment of the convertible valves with the first valve gate in a converted state and the conversion element being extruded from the first seat.
  • FIG. 4C shows a cross-sectional view of one embodiment of convertible valves with the second valve gate in a converted state.
  • FIG. 4D shows a cross-sectional view of one embodiment of convertible valves with the conversion element ejected from the second seat.
  • FIG. 5A shows a cross-sectional perspective view of one embodiment of dual convertible valves.
  • FIG. 5B shows a cross-sectional perspective view of one embodiment of dual convertible valves with the first valve gate in a converted state and the conversion element extruded from the second seat.
  • FIG. 5C shows a cross-sectional perspective view of one embodiment of dual convertible valves with the second valve gate in a converted state.
  • FIG. 5D shows a cross-sectional perspective view of one embodiment of dual convertible valves with the conversion element ejected from the second seat.
  • FIG. 1A an assembled view of a convertible valve 100 including a valve body 102 and main housing 104 couplable to a pipe string, sub, or other pipe section (not shown).
  • FIG. IB depicts an exploded view of components used in assembling a particular embodiment of convertible valve 100.
  • valve body 102 includes a mounting bracket 108 for the mounting of a valve gate 106, and a circular seal 109 to sealingly engaging valve gate 106 when in its closed position.
  • Valve gate 106 is attached to valve body 102 by a pin 110 and bushing 112 mount, which also houses a metallic spring 114 that operates to move valve gate 106 between its open and closed positions.
  • Valve body 102 and valve gate 106 are attached as an assembly to main housing 104.
  • valve gate 106 is initially retained in its open position by a seat 116.
  • Seat 116 is retained in main housing 104 by a retaining ring 118 surrounding seat 116 and at least one shear device 120; shear device(s) 120 extending through main housing 104 and into seat 116.
  • Shear device(s) 120 may be any type of shear device, including, e.g., screws and pins.
  • the interior of seat 116 is designed so that a conversion element 122, depicted as a conversion ball in FIG. 1A and FIG. IB, is retained therein by a snap ring 124 or other suitable retainer.
  • FIG. 2A shows a cross-sectional view of another embodiment of the device.
  • a second convertible valve 200 is attached to the lower end of main housing 104.
  • Second convertible valve 200 includes a second valve body 202 and second main housing 204 couplable to a pipe string, sub, or other convertible valve.
  • Second valve body 202 includes a second valve gate 206.
  • Second valve gate 206 can be mounted within second valve body 202 in a similar fashion as valve gate 106 is mounted within valve body 102.
  • the second valve body 202 and second valve gate 206 are depicted as an assembly attached to second main housing 204, but could readily be integrated with valve body 102 and valve gate 106 within a common main housing (not shown).
  • second valve gate 206 is retained in its open position by a second seat 208.
  • Second seat 208 can be retained in second main housing 204 in a similar fashion as seat 116 is retained in main housing 104, e.g., including shear device(s) 210 extending through second main housing 204 and into second seat 208.
  • second seat 208 need not define fluid passages since second convertible valve 200 is generally to be converted upon landing of conversion element 122 on second seat 208 following conversion of convertible valve 100 and extrusion of conversion element 122 from seat 116.
  • FIG. 2B provides a partial top view taken along line BB of FIG. 2A showing seat 116, conversion element 122, and one possible location for bi-directional fluid passage(s) 126.
  • bi-directional fluid passage(s) 126 are located through the body of seat 116.
  • the device When properly assembled and connected to a pipe string, the device functions by allowing fluids to be pumped through the valve assembly by flowing through valve body 102, through fluid passages 126 defined in seat 116, through second valve body 202, and out through second seat 208.
  • fluid flow is initially possible in a bi-directional manner so as to allow the circulation of fluids throughout a pipe string.
  • the device may be converted by raising the fluid pressure to a certain predetermined pressure to then allow only unidirectional flow.
  • conversion element 122 Upon reaching the predetermined pressure, conversion element 122 will apply downward force to seat 116 in which it is retained, sufficient to shear one or more shear device(s) 120 and move seat 116 into a second position. With seat 116 in this second position, valve gate 106 is free to move towards a biased closed position, thereafter effectively serving as a one- way flapper valve.
  • conversion element 122 Further pressurization causes conversion element 122 to be extruded from seat 116. Conversion element 122 travels through second valve body 202, and lands in second seat 208. Conversion element 122 then occludes the central fluid passage of second seat 208 and applies downforce sufficient to similarly shear one or more shear device(s) 210 holding second seat 208. Upon this shearing, second seat 208 moves into the second position, thus allowing second valve gate 206 to move towards a biased-closed position. It is important to note that upon the conversion of one or both valve gates 106 and 206, fluids will no longer be able to back flow through the valves, i.e. in the direction from second seat 208 through second valve body 202. However, after conversion of one or both valve gates 106 and 206, down-bore fluid flow is still possible, i.e., through the device in the direction from convertible valve 100 to second convertible valve 200.
  • FIG. 3A shows the embodiment of FIG. 2A with an approximate forty-five degree rotation of the device.
  • FIG. 3B provides a detailed view of one possible location for bidirectional fluid passage(s) 126, in this instance, being located through the body of seat 116.
  • bi-directional fluid passages or other limited "bypass" passages may be provided alternatively or additionally in other components such as valve body 102 and conversion element 122.
  • FIG. 4A - 4D and FIG. 5A - 5D show different cross- sectional views of various stages or states in the process of converting convertible valve 100 and second convertible valve 200.
  • FIG. 4A and FIG. 5A reflect convertible valves 100 and 200 in unconverted states, similar to the depiction in FIG. 2A and FIG. 3A.
  • conversion element 122 causes seat 116 to shift to its second position, allowing valve gate 106 to move to its closed position, and causing conversion element 122 to be extruded through seat 116. This step is best depicted in FIG. 4B and FIG. 5B.
  • Conversion element 122 then lands and seats onto second seat 208 where it acts upon second seat 208 in a similar fashion to allow second valve gate 206 to move to its closed position, as depicted in FIG. 4C and FIG. 5C.
  • valve gates 106 and 206, seats 116 and 208, conversion element 122, valve bodies 102 and 202, and main housings 104 and 204 may each be composed of various materials including, but not limited to, aluminum, steel, cast iron, zinc alloys, plastic composite, and fiberglass composite.
  • various components may be implemented in alternative ways. These alternatives can be suitably selected depending upon the particular application or in consideration of any number of factors associated with the operation of the device.
  • the techniques described herein may be extended or modified for use with other types of devices.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

La présente invention concerne une valve coudable à la demande comprenant un élément de conversion retenu dans un logement afin de convertir un obturateur de valve d'un flux bidirectionnel en un flux unidirectionnel. La valve coudable à la demande comprend un obturateur de valve mobile entre une première position ouverte et une seconde position fermée, un logement mobile entre une première position et une seconde position, et un élément de conversion retenu dans le logement. Le logement, dans sa première position, maintient l'obturateur de valve dans sa première position ouverte. Quand l'obturateur de valve se trouve dans la première position ouverte, la valve coudable à la demande permet un flux bidirectionnel de fluide. Le fluide s'écoulant à travers la valve coudable à la demande crée une force dirigée vers le bas sur l'élément de conversion et le logement. Lorsqu'une force prédéfinie est atteinte, le logement se déplace vers sa seconde position permettant à l'obturateur de valve de se déplacer vers sa seconde position fermée. Quand l'obturateur de valve se trouve dans la seconde position fermée, la valve coudable à la demande ne permet qu'un flux unidirectionnel de fluide.
PCT/US2015/037975 2014-06-27 2015-06-26 Valve coudable à la demande à élément de conversion retenu WO2015200792A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201462018230P 2014-06-27 2014-06-27
US62/018,230 2014-06-27
US201514147502A 2015-06-25 2015-06-25
US14//750,275 2015-06-25

Publications (1)

Publication Number Publication Date
WO2015200792A1 true WO2015200792A1 (fr) 2015-12-30

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PCT/US2015/037975 WO2015200792A1 (fr) 2014-06-27 2015-06-26 Valve coudable à la demande à élément de conversion retenu

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291722A (en) * 1979-11-02 1981-09-29 Otis Engineering Corporation Drill string safety and kill valve
US5048611A (en) * 1990-06-04 1991-09-17 Lindsey Completion Systems, Inc. Pressure operated circulation valve
US5180016A (en) * 1991-08-12 1993-01-19 Otis Engineering Corporation Apparatus and method for placing and for backwashing well filtration devices in uncased well bores
US20110168410A1 (en) * 2010-01-12 2011-07-14 Deboer Luc Drill string flow control valve and methods of use
US20110290344A1 (en) * 2010-05-24 2011-12-01 Blackhawk Specialty Tools, Llc Large bore auto-fill float equipment
US20120132289A1 (en) * 2010-11-30 2012-05-31 Tempress Technologies, Inc. Hydraulic pulse valve with improved pulse control

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291722A (en) * 1979-11-02 1981-09-29 Otis Engineering Corporation Drill string safety and kill valve
US5048611A (en) * 1990-06-04 1991-09-17 Lindsey Completion Systems, Inc. Pressure operated circulation valve
US5180016A (en) * 1991-08-12 1993-01-19 Otis Engineering Corporation Apparatus and method for placing and for backwashing well filtration devices in uncased well bores
US20110168410A1 (en) * 2010-01-12 2011-07-14 Deboer Luc Drill string flow control valve and methods of use
US20110290344A1 (en) * 2010-05-24 2011-12-01 Blackhawk Specialty Tools, Llc Large bore auto-fill float equipment
US20120132289A1 (en) * 2010-11-30 2012-05-31 Tempress Technologies, Inc. Hydraulic pulse valve with improved pulse control

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