CA2078421A1 - Automatic filling floating equipment - Google Patents
Automatic filling floating equipmentInfo
- Publication number
- CA2078421A1 CA2078421A1 CA 2078421 CA2078421A CA2078421A1 CA 2078421 A1 CA2078421 A1 CA 2078421A1 CA 2078421 CA2078421 CA 2078421 CA 2078421 A CA2078421 A CA 2078421A CA 2078421 A1 CA2078421 A1 CA 2078421A1
- Authority
- CA
- Canada
- Prior art keywords
- valve
- filling
- self
- poppet
- float device
- 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 description 8
- 239000004568 cement Substances 0.000 claims description 6
- 210000005069 ears Anatomy 0.000 claims description 6
- 241000239290 Araneae Species 0.000 claims 4
- 239000011800 void material Substances 0.000 claims 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Lift Valve (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
ABSTRACT
An automatic self-filling mechanism for floating equipment comprising an arm and ear adapter arrangement associated with the valve poppet of the floating equipment to selectively hold the valve poppet open to fill a casing string being cemented in a well bore.
An automatic self-filling mechanism for floating equipment comprising an arm and ear adapter arrangement associated with the valve poppet of the floating equipment to selectively hold the valve poppet open to fill a casing string being cemented in a well bore.
Description
s~
AUTOMAT:rC FILLING ~LoA~rING E~UIPMENT
BACKGROUND OF THE INVENTION
This invention relates to an improved automatic self-~illing mechanism for floating equipment used in well cementing operations. A number of different types of checX
valves are used in floating equipment employ~d in the cementing of casing in oil and gas wells. It is normally desired to maintain the check valves open in the floating equipment installed in the ca ing string being run into the well bore so that the casing can automatically fill with well fluids in the well bore from the bottom of the casing string.
This results in a saving of time in comparison to manually filling the casing string from the surface as it is being run into the well bore.
One type of currently available self-filling floating equipment design uses some type of sacrificial mechanical part for maintaining the check valve in an initially open position, such as shear plates, shear pins, extrusion rings, tension collars or the like. Examples of such self-filling floating equipment are shown in United States Patent Nos. 2802482, 33~5370, 3419040, and 3776250.
Another type o~ s~lf-~illlng ~loating equipment de~ign uses and indexiny mechanism to maintain the check valve in an initially open position. An example o~ such an indexing type mechanism is shown in United States Patent Nos. 3957114 and 4067358.
In a different type of floating equipment design as shown in United States Patent No. 4,712,619 it is desirable to have an automatic self-filling mechanism. One manner to accomplish the automatic self-filling feature is to include elastomeric strap having lugs thereon to the bottom of the valve member to use the lugs on the strap to initially hold the valve member open.
BRIEF STATEMENT_OF THE INVENTION
The present invention relates to an improved automatic self-filling mechanism for floating equipment used in well cementing operations. The automatic self-filling mechanism for floating equipment of the present invention comprises the use of an arm and ear adapter arrangement associated with the valve poppet of the floating equipment.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a cross-sectional view of the prior art floating equipment insert having a strap and lug automatic sel~-filling feature.
Fig. 2 is a cross-sectional view of a Eirst embodiment of the present invention.
Fig. 3 is a cros~3-sectional view o~ a second embodiment of the present :lnventlon.
The features of the present invention will be more ~ully understood when taken in conjunction with the detailed description of the invention.
DETAILED DESCRIPTION OF THE INVENTION
Referring to Fig. 1, the prior art insert assembly 10 is shown for floating equipment as described in United States Patent No. 4712619. Also shown with the insert assembly 10 is 2 ~ 7 ~
a prior art automatic self-filling attachment 12 for khe insert assembly lo.
The self-filling attachment 12 comprises an elaskomeric strap having a pair of standoff lugs 14 formed on the ends thereof. The attachment 12 is secured to the bottom of the poppet valve 16 of the insert assembly 10 by means of adhesive bonding.
Af~er secu~ing the attachment 12 to the poppet valve 16, the poppet valve 16 is opened, the lugs 14 inserted between the valve 16 and valve seat 18, and the valve 16 is released so that the lugs 14 are trapped between the valve 16 and valve seat 18. In this manner, when a piece of floating equipment having the insert assembly 10 and attachment 12 thereon is installed in a casing string run into a well bore, since the poppet valve 16 is open, the casing string will automatically fill with fluids from the well hore as it is run thereinto.
To remove the lugs 14 from bet~een the poppet valve 16 and valve seat 18 large volumes of ~luid are pumped through the insert assembly 10 to torce the poppet valve 16 open thereby releasing the luys 1~ to fall downwardly.
Referring to Fig. 2, the automatic self-filling mechanism 20 of a first embodiment of the present invention is shown installed on a piece of floating equipment 22.
The floating equipment 22 comprises a poppet valve assembly 24, short casing section or collar 26, and a cement filler material 28 which retains the poppet valve assembly 24 in the collar 26., ~ ~7 ~
The poppet valve assembly 24 comprises a tubular valve body 30, valve poppet 32, stem bolt 34, valve spring 36, and valve spring retainer cap 38. The valve poppet 32 has an elastomeric covering 40 thereon to seal against a portion of the valve body 30. The valve support 32 is formed having a plurality of lugs 42 on the bottom thereof.
The automatic self-filling mechanism shown in Fig. 2 comprises an adapter 44, plurality of valve poppet ears 46 secured to the bottom of the valve poppet 32, and a plurality of auto-fill arms 48 secured to the adapter 44 at lugs 50 thereon by means of pins 52.
The valve poppet ears 46 may be integrally formed on the valve poppet 32 or may be separately formed and secured to the bottom of ~he valve poppet 32 by any suitable means, such as adhesive bonding.
The adapter 44 is secured to the valve body 30 and cement 28 ts retain the adapter 44 in position on the body 30.
Each auto-fill arm 48 is formed having a hole 54 through one end there.in and haviny a recess 56 in the other erld thereof, in which, porti.on 58 of an ear ~6 may be receivecl ther~in.
Referring to Fig. 3, the automatic self filling mechanism 120 of a second embodiment of the present invention is shown installed on a piece of floating equipment 122.
The floating equipment 122 comprises a poppet valve assembly 124, short casing section or collar 126, and a cement filler material 128 which retains the poppet valve assembly ' 7, ¦.
124 in the collar 126.
The poppet valve assembly 124 comprises a kubular valve body 130, valve poppet 132, stem bolt 134, valve spring 136, and valve spring retainer cap 1380 The valve poppet 132 has an elastomeric covering 140 thereon to 5eal against a portion of the valve body 130. The valve support 132 is formed having a plurality of lugs 142 on the bottom thereof.
The automatic self-filling mechanism shown in Fig. 3 comprises an elastomeric adapter 144, a plurality of valve poppet ears 146 secured to the bottom of the valve poppet 132 and a plurality of auto-fill arms 148 secured to the adapter 144.
The adapter 144 is secured to the valve body 130 and cement to retain the adapter 144 in position on the ~ody 130.
Each auto-fill arm 148 is formed having one end thereof secured to the adapter 144 and having at least one recess 150 in the other end thereof, in which, a portion 152 of an ear 146 may be received kherein.
OPERATION OF THE INVENTION
Re~erring to Fig. 2, th~ automat.ic sel~-gilliny mechanism 20 is installecl in a piece o~ floatiny equipment 22, a float collar. When the equipment 22 is installed in a string o~
casing (not shown), the valve poppet 32 will be held open by the auto-fill arms 48 engaging the poppet ears 46 on the valve poppet 32.
Since the valve poppet 32 is in the open position, as the string of casing is run into the well, fluid may flow through the piece of floating equipment 22 to fill the casiny. When it is desired to close the valve poppet 32, fluid is pumped downwardly through the poppet valve assembly 24 of the floating equipment 22 at a rate sufficient to cause the valve poppet 32 to be forced open until the auto-fill arms 48 no longer engage the poppet ears 46 on the valve poppet 32. When pumping of the fluid ceases, the valve poppet 32 will close and seat on the valve body 30.
The operation of the automatic self-filling mechanism 120 shown in Fig. 3 is the same as that described with respect to Fig. 2 and the automa-tic self-filling mechanism 20.
AUTOMAT:rC FILLING ~LoA~rING E~UIPMENT
BACKGROUND OF THE INVENTION
This invention relates to an improved automatic self-~illing mechanism for floating equipment used in well cementing operations. A number of different types of checX
valves are used in floating equipment employ~d in the cementing of casing in oil and gas wells. It is normally desired to maintain the check valves open in the floating equipment installed in the ca ing string being run into the well bore so that the casing can automatically fill with well fluids in the well bore from the bottom of the casing string.
This results in a saving of time in comparison to manually filling the casing string from the surface as it is being run into the well bore.
One type of currently available self-filling floating equipment design uses some type of sacrificial mechanical part for maintaining the check valve in an initially open position, such as shear plates, shear pins, extrusion rings, tension collars or the like. Examples of such self-filling floating equipment are shown in United States Patent Nos. 2802482, 33~5370, 3419040, and 3776250.
Another type o~ s~lf-~illlng ~loating equipment de~ign uses and indexiny mechanism to maintain the check valve in an initially open position. An example o~ such an indexing type mechanism is shown in United States Patent Nos. 3957114 and 4067358.
In a different type of floating equipment design as shown in United States Patent No. 4,712,619 it is desirable to have an automatic self-filling mechanism. One manner to accomplish the automatic self-filling feature is to include elastomeric strap having lugs thereon to the bottom of the valve member to use the lugs on the strap to initially hold the valve member open.
BRIEF STATEMENT_OF THE INVENTION
The present invention relates to an improved automatic self-filling mechanism for floating equipment used in well cementing operations. The automatic self-filling mechanism for floating equipment of the present invention comprises the use of an arm and ear adapter arrangement associated with the valve poppet of the floating equipment.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a cross-sectional view of the prior art floating equipment insert having a strap and lug automatic sel~-filling feature.
Fig. 2 is a cross-sectional view of a Eirst embodiment of the present invention.
Fig. 3 is a cros~3-sectional view o~ a second embodiment of the present :lnventlon.
The features of the present invention will be more ~ully understood when taken in conjunction with the detailed description of the invention.
DETAILED DESCRIPTION OF THE INVENTION
Referring to Fig. 1, the prior art insert assembly 10 is shown for floating equipment as described in United States Patent No. 4712619. Also shown with the insert assembly 10 is 2 ~ 7 ~
a prior art automatic self-filling attachment 12 for khe insert assembly lo.
The self-filling attachment 12 comprises an elaskomeric strap having a pair of standoff lugs 14 formed on the ends thereof. The attachment 12 is secured to the bottom of the poppet valve 16 of the insert assembly 10 by means of adhesive bonding.
Af~er secu~ing the attachment 12 to the poppet valve 16, the poppet valve 16 is opened, the lugs 14 inserted between the valve 16 and valve seat 18, and the valve 16 is released so that the lugs 14 are trapped between the valve 16 and valve seat 18. In this manner, when a piece of floating equipment having the insert assembly 10 and attachment 12 thereon is installed in a casing string run into a well bore, since the poppet valve 16 is open, the casing string will automatically fill with fluids from the well hore as it is run thereinto.
To remove the lugs 14 from bet~een the poppet valve 16 and valve seat 18 large volumes of ~luid are pumped through the insert assembly 10 to torce the poppet valve 16 open thereby releasing the luys 1~ to fall downwardly.
Referring to Fig. 2, the automatic self-filling mechanism 20 of a first embodiment of the present invention is shown installed on a piece of floating equipment 22.
The floating equipment 22 comprises a poppet valve assembly 24, short casing section or collar 26, and a cement filler material 28 which retains the poppet valve assembly 24 in the collar 26., ~ ~7 ~
The poppet valve assembly 24 comprises a tubular valve body 30, valve poppet 32, stem bolt 34, valve spring 36, and valve spring retainer cap 38. The valve poppet 32 has an elastomeric covering 40 thereon to seal against a portion of the valve body 30. The valve support 32 is formed having a plurality of lugs 42 on the bottom thereof.
The automatic self-filling mechanism shown in Fig. 2 comprises an adapter 44, plurality of valve poppet ears 46 secured to the bottom of the valve poppet 32, and a plurality of auto-fill arms 48 secured to the adapter 44 at lugs 50 thereon by means of pins 52.
The valve poppet ears 46 may be integrally formed on the valve poppet 32 or may be separately formed and secured to the bottom of ~he valve poppet 32 by any suitable means, such as adhesive bonding.
The adapter 44 is secured to the valve body 30 and cement 28 ts retain the adapter 44 in position on the body 30.
Each auto-fill arm 48 is formed having a hole 54 through one end there.in and haviny a recess 56 in the other erld thereof, in which, porti.on 58 of an ear ~6 may be receivecl ther~in.
Referring to Fig. 3, the automatic self filling mechanism 120 of a second embodiment of the present invention is shown installed on a piece of floating equipment 122.
The floating equipment 122 comprises a poppet valve assembly 124, short casing section or collar 126, and a cement filler material 128 which retains the poppet valve assembly ' 7, ¦.
124 in the collar 126.
The poppet valve assembly 124 comprises a kubular valve body 130, valve poppet 132, stem bolt 134, valve spring 136, and valve spring retainer cap 1380 The valve poppet 132 has an elastomeric covering 140 thereon to 5eal against a portion of the valve body 130. The valve support 132 is formed having a plurality of lugs 142 on the bottom thereof.
The automatic self-filling mechanism shown in Fig. 3 comprises an elastomeric adapter 144, a plurality of valve poppet ears 146 secured to the bottom of the valve poppet 132 and a plurality of auto-fill arms 148 secured to the adapter 144.
The adapter 144 is secured to the valve body 130 and cement to retain the adapter 144 in position on the ~ody 130.
Each auto-fill arm 148 is formed having one end thereof secured to the adapter 144 and having at least one recess 150 in the other end thereof, in which, a portion 152 of an ear 146 may be received kherein.
OPERATION OF THE INVENTION
Re~erring to Fig. 2, th~ automat.ic sel~-gilliny mechanism 20 is installecl in a piece o~ floatiny equipment 22, a float collar. When the equipment 22 is installed in a string o~
casing (not shown), the valve poppet 32 will be held open by the auto-fill arms 48 engaging the poppet ears 46 on the valve poppet 32.
Since the valve poppet 32 is in the open position, as the string of casing is run into the well, fluid may flow through the piece of floating equipment 22 to fill the casiny. When it is desired to close the valve poppet 32, fluid is pumped downwardly through the poppet valve assembly 24 of the floating equipment 22 at a rate sufficient to cause the valve poppet 32 to be forced open until the auto-fill arms 48 no longer engage the poppet ears 46 on the valve poppet 32. When pumping of the fluid ceases, the valve poppet 32 will close and seat on the valve body 30.
The operation of the automatic self-filling mechanism 120 shown in Fig. 3 is the same as that described with respect to Fig. 2 and the automa-tic self-filling mechanism 20.
Claims (12)
1. A self-filling float device for use in a well bore cementing operation, said self-filling float device comprising:
a casing equipment housing including a tubular section having an axial bore therethrough;
a valve assembly axially disposed in the axial bore of the tubular section, the valve assembly including:
a valve body having a valve seat base therein;
a guide spider above the valve seat base in the valve body and having a stem bolt therethrough;
a valve poppet having an upwardly-facing valve surface thereon disposed adjacent the valve seat base;
a stem bolt secured to the valve poppet and extending upwardly through the stem bolt bore in the guide spider; and a coil spring disposed about the stem bolt biasing the valve poppet into engagement with the valve seat base;
a cement sheath surrounding the valve assembly and substantially filling the annular void between the valve assembly and the wall of the bore of the tubular section; and an automatic self-filling mechanism located in the bottom of the casing equipment having a portion thereof adapted to selectively engage a portion of the valve poppet of the valve assembly to selectively hold the valve poppet open to allow fluids used in said well cementing operation to flow upwardly through said self-filling float device.
a casing equipment housing including a tubular section having an axial bore therethrough;
a valve assembly axially disposed in the axial bore of the tubular section, the valve assembly including:
a valve body having a valve seat base therein;
a guide spider above the valve seat base in the valve body and having a stem bolt therethrough;
a valve poppet having an upwardly-facing valve surface thereon disposed adjacent the valve seat base;
a stem bolt secured to the valve poppet and extending upwardly through the stem bolt bore in the guide spider; and a coil spring disposed about the stem bolt biasing the valve poppet into engagement with the valve seat base;
a cement sheath surrounding the valve assembly and substantially filling the annular void between the valve assembly and the wall of the bore of the tubular section; and an automatic self-filling mechanism located in the bottom of the casing equipment having a portion thereof adapted to selectively engage a portion of the valve poppet of the valve assembly to selectively hold the valve poppet open to allow fluids used in said well cementing operation to flow upwardly through said self-filling float device.
2. The self-filling float device of claim 1 wherein:
the automatic self-filling mechanism includes:
at least one ear located on the bottom of the valve poppet of the valve assembly;
an adapter secured in the bottom of the casing equipment housing;
and a auto-filling arm having a portion thereof secured to the adapter and having a portion thereof adapted to engage a portion of the ear on the bottom of the valve poppet.
the automatic self-filling mechanism includes:
at least one ear located on the bottom of the valve poppet of the valve assembly;
an adapter secured in the bottom of the casing equipment housing;
and a auto-filling arm having a portion thereof secured to the adapter and having a portion thereof adapted to engage a portion of the ear on the bottom of the valve poppet.
3. The self-filling float device of claim 2 wherein:
the ear of the automatic self-filling mechanism is integrally formed on the valve poppet of the valve assembly.
the ear of the automatic self-filling mechanism is integrally formed on the valve poppet of the valve assembly.
4. The self-filling float device of claim 2 wherein:
the ear of the automatic self-filling mechanism is fastened on the valve poppet of the valve assembly.
the ear of the automatic self-filling mechanism is fastened on the valve poppet of the valve assembly.
5. The self-filling float device of claim 2 wherein:
the adapter is formed having a lug thereon having a hole therein.
the adapter is formed having a lug thereon having a hole therein.
6. The self-filling float device of claim 5 wherein:
the valve poppet arm is formed having a hole in one end thereof and a recess in the other end to receive a portion of the ear therein.
the valve poppet arm is formed having a hole in one end thereof and a recess in the other end to receive a portion of the ear therein.
7. The self-filling float device of claim 6 wherein:
the ear of the automatic self-filling mechanism is formed having a portion thereof adapted to be received in the recess of the auto-filling arm.
the ear of the automatic self-filling mechanism is formed having a portion thereof adapted to be received in the recess of the auto-filling arm.
8. The self-filling float device of claim 7 wherein:
the auto-filling arm is secured to the adapter by means of a pin engaging a portion of the hole in the valve poppet arm and engaging a portion of the hole in the lug on the adapter.
the auto-filling arm is secured to the adapter by means of a pin engaging a portion of the hole in the valve poppet arm and engaging a portion of the hole in the lug on the adapter.
9. The self-filling float device of claim 2 wherein:
the auto-filling arm is formed having a recess in one end thereof to receive a portion of the ear therein.
the auto-filling arm is formed having a recess in one end thereof to receive a portion of the ear therein.
10. The self-filling float device of claim 9 wherein:
the ear of the automatic self-filling mechanism is formed having a portion thereof adapted to he received in the recess of the auto-fill arm.
the ear of the automatic self-filling mechanism is formed having a portion thereof adapted to he received in the recess of the auto-fill arm.
11. A self-filling float device for use in a well cementing operation to allow fluids used therein to flow upwardly through said self-filling float device into a string of casing being run into a well bore prior to the cementing of said string of casing, said self-filling float device comprising:
a casing equipment housing including a tubular section having an axial bore therethrough, the casing equipment housing adapted to be secured to said string of casing being cemented into said well bore;
valve assembly axially disposed in the axial bore of the tubular section of the casing equipment housing, the valve assembly including:
a valve body having a valve seat base therein;
a guide spider above the valve seat base in the valve body and having a stem bolt bore through a portion thereof;
a valve poppet having an upwardly-facing valve surface thereon disposed adjacent the valve seat base;
a stem bolt secured to the valve poppet and extending upwardly through the stem bolt bore in the guide spider; and a coil spring disposed about the stem bolt biasing the valve poppet into engagement with the valve seat base;
a cement sheath surrounding the valve assembly and substantially filling the annular void between the valve assembly and the well of the bore of the tubular section; and an automatic self-filling mechanism located in the bottom of the casing equipment having a portion thereon adapted to selectively engage a portion valve poppet of the valve assembly to selectively hold the valve poppet open to allow said fluids used in said well cementing operation to flow upwardly through said self-filling float device, the automatic self-filling mechanism including:
a plurality of ears located on the bottom of the valve poppet of the valve assembly;
an adapter secured in the bottom of the casing equipment housing;
and a plurality of auto-fill arms, each auto-fill arm having a portion thereof pivotally secured to the adapter and having another portion thereon adapted to engage a portion of an ear on the bottom of the valve poppet.
a casing equipment housing including a tubular section having an axial bore therethrough, the casing equipment housing adapted to be secured to said string of casing being cemented into said well bore;
valve assembly axially disposed in the axial bore of the tubular section of the casing equipment housing, the valve assembly including:
a valve body having a valve seat base therein;
a guide spider above the valve seat base in the valve body and having a stem bolt bore through a portion thereof;
a valve poppet having an upwardly-facing valve surface thereon disposed adjacent the valve seat base;
a stem bolt secured to the valve poppet and extending upwardly through the stem bolt bore in the guide spider; and a coil spring disposed about the stem bolt biasing the valve poppet into engagement with the valve seat base;
a cement sheath surrounding the valve assembly and substantially filling the annular void between the valve assembly and the well of the bore of the tubular section; and an automatic self-filling mechanism located in the bottom of the casing equipment having a portion thereon adapted to selectively engage a portion valve poppet of the valve assembly to selectively hold the valve poppet open to allow said fluids used in said well cementing operation to flow upwardly through said self-filling float device, the automatic self-filling mechanism including:
a plurality of ears located on the bottom of the valve poppet of the valve assembly;
an adapter secured in the bottom of the casing equipment housing;
and a plurality of auto-fill arms, each auto-fill arm having a portion thereof pivotally secured to the adapter and having another portion thereon adapted to engage a portion of an ear on the bottom of the valve poppet.
12. The self-filling float device of claim 9 wherein:
the adapter is formed having a plurality of lugs thereon, each lug having a hole therein;
the auto-fill arm is formed having a hole in one end thereof and a recess in the other end to receive a portion of the ear on the bottom of the valve poppet therein; and each auto-fill arm is secured to the adapter by means of a pin engaging a portion of the hole in the valve poppet arm and engaging a portion of the hole in each lug on the adapter.
the adapter is formed having a plurality of lugs thereon, each lug having a hole therein;
the auto-fill arm is formed having a hole in one end thereof and a recess in the other end to receive a portion of the ear on the bottom of the valve poppet therein; and each auto-fill arm is secured to the adapter by means of a pin engaging a portion of the hole in the valve poppet arm and engaging a portion of the hole in each lug on the adapter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US76042391A | 1991-09-16 | 1991-09-16 | |
| US760,423 | 1991-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2078421A1 true CA2078421A1 (en) | 1993-03-17 |
Family
ID=25059067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2078421 Abandoned CA2078421A1 (en) | 1991-09-16 | 1992-09-16 | Automatic filling floating equipment |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0533369A1 (en) |
| AU (1) | AU2450092A (en) |
| BR (1) | BR9203583A (en) |
| CA (1) | CA2078421A1 (en) |
| MX (1) | MX9205243A (en) |
| NO (1) | NO923577L (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5411049A (en) * | 1994-03-18 | 1995-05-02 | Weatherford U.S., Inc. | Valve |
| US5472053A (en) * | 1994-09-14 | 1995-12-05 | Halliburton Company | Leakproof floating apparatus and method for fabricating said apparatus |
| US5501280A (en) * | 1994-10-27 | 1996-03-26 | Halliburton Company | Casing filling and circulating apparatus and method |
| US6719003B2 (en) | 2001-12-26 | 2004-04-13 | Visteon Global Technologies, Inc. | Charge valve for an air conditioning system |
| US6659426B2 (en) * | 2001-12-26 | 2003-12-09 | Visteon Global Technologies, Inc. | Charge valve in a high pressure air conditioning system |
| CA2952572A1 (en) | 2014-08-12 | 2016-02-18 | Halliburton Energy Services, Inc. | Float valve with resettable auto-fill |
| WO2017052556A1 (en) | 2015-09-24 | 2017-03-30 | Halliburton Energy Services, Inc. | Float valve assembly with drag force dependent deactivation |
| US12012812B2 (en) * | 2021-09-07 | 2024-06-18 | Downhole Products Limited | Dual flow converted auto-fill float valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1811885A (en) * | 1928-04-23 | 1931-06-30 | Nat Supply Co | Float plug and guide for well casings |
| US3419040A (en) * | 1966-12-27 | 1968-12-31 | Edward J. Thibodeaux | Drill pipe valve having means for rendering it temporarily inoperative |
| US4712619A (en) * | 1986-07-30 | 1987-12-15 | Halliburton Company | Poppet valve |
-
1992
- 1992-09-01 EP EP92307926A patent/EP0533369A1/en not_active Withdrawn
- 1992-09-15 BR BR9203583A patent/BR9203583A/en not_active Application Discontinuation
- 1992-09-15 NO NO92923577A patent/NO923577L/en unknown
- 1992-09-15 MX MX9205243A patent/MX9205243A/en not_active Application Discontinuation
- 1992-09-15 AU AU24500/92A patent/AU2450092A/en not_active Abandoned
- 1992-09-16 CA CA 2078421 patent/CA2078421A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| BR9203583A (en) | 1993-04-13 |
| NO923577D0 (en) | 1992-09-15 |
| MX9205243A (en) | 1994-07-29 |
| EP0533369A1 (en) | 1993-03-24 |
| NO923577L (en) | 1993-03-17 |
| AU2450092A (en) | 1993-03-18 |
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