Patent US3779263A successfully refreshed from Google Patents.
US3779263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure responsive auxiliary disc valve and the like for well cleaning, testing, and other operations
Assignee: Halliburton Co
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Filing: 1972-02-09
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Granted: 1973-12-18
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Expires: 1992-02-09
Abstract
Abstract A full opening pressure operated disc valve particularly suited for cleaning formation perforations by surging and for other operations comprises a rupturable sealing element and a sliding tubular rupture member actuated by a controlled pressure differential between the tubing chamber and the casing annulus, with said element and rupture member being located concentrically within a tubular body and having an ID substantially the same as that of the tubing string.
Inventors
- 👤 A Edwards
- 👤 C Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:41
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; E21B34/10; E21B34/063; E21B37/00; E21B37/08; F; F16; F16K; F16K13/00; F16K13/04; Y; Y10; Y10S; Y10S137/00; Y10S137/91; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1692; Y10T137/1714; Y10T137/1729; Y10T137/1744; Y10T137/1759; Y10T137/1767
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
222 words
A pressure responsive rupture valve adapted to be attached in a tubing string or a tool string and lowered into a borehole penetrating an underground earth formation, said rupture valve comprising: a. an elongated tubular housing having port means through the wall thereof communicating between the interior of said housing and its exterior; b. rupturable sealing means located within said tubular housing and sealingly fixed within said housing transversely to the longitudinal axis of said housing for sealing the internal passage of said housing against liquid or gas flow therethrough; and c. rupture means located telescopically and concentrically within said tubular housing near said rupturable sealing means, said rupture means having piston means located thereon; said rupture means, said piston means, and said tubular housing arranged to form coacting piston chamber means in said rupture valve, said piston means and chamber means fluidically communicating with said port means and adapted to receive fluid pressure through said port means and transmit said pressure into transverse movement of said rupture means through said rupturable sealing means, said rupture means having pressure relief means therein for preventing hydraulic lock by the action of said piston means in said chamber means, said pressure relief means further comprising port relief means in said rupture means on the opposite side of said piston means from said port means.
Claim 2
Dependent Claim
222 words
A pressure responsive rupture valve adapted to be attached in a tubing string or a tool string and lowered into a borehole penetrating an underground earth formation, said rupture valve comprising: a. an elongated tubular housing having port means through the wall thereof communicating between the interior of said housing and its exterior; b. rupturable sealing means located within said tubular housing and sealingly fixed within said housing transversely to the longitudinal axis of said housing for sealing the internal passage of said housing against liquid or gas flow therethrough; and c. rupture means located telescopically and concentrically within said tubular housing near said rupturable sealing means, said rupture means having piston means located thereon; said rupture means, said piston means, and said tubular housing arranged to form coacting piston chamber means in said rupture valve, said piston means and chamber means fluidically communicating with said port means and adapted to receive fluid pressure through said port means and transmit said pressure into transverse movement of said rupture means through said rupturable sealing means, said rupture means having pressure relief means therein for preventing hydraulic lock by the action of said piston means in said chamber means, said pressure relief means further comprising port relief means in said rupture means on the opposite side of said piston means from said port means.
Claim 3
Dependent Claim
91 words
The valve of claim 1 wherein said tubular housing further comprises: a. one or more cylindrical housing members having connector means at each end; b. a valve seat collar attached to said cylindrical housing members and containing a valve seat shoulder for seating said rupturable sealing means; c. a tubular upper adapter for securing the upper end of said tubular housing to a standard well tubing or other tool; and d. a tubular lower adapter for securing the lower end of said tubular housing to standard well tubing or other tool.
Claim 4
Dependent Claim
46 words
The valve of claim 2 wherein said cylindrical housing members and said upper and lower adapters are connected with one another by mated threaded ends and are sealingly engaged with one another by a plurality of circular seals located concentrically between every two adjacent joined members.
Claim 5
Dependent Claim
44 words
The valve of claim 3 wherein said rupturable sealing means comprises a domed circular rupture disc made of a material selected from the group consisting of magnesium, magnesium alloys, aluminum, aluminum alloys, plastic, rubber, copper, copper alloys, glass fiber reinforced epoxy, wood, and glass.
Claim 6
Dependent Claim
59 words
The valve of claim 3 wherein said rupture means comprises a tubular cutting sleeve in abutment with one or more tubular piston sleeves, with said tubular cutting sleeve having an angular cutting edge at one end pointing toward said rupturable sealing element, and the other end of said cutting sleeve being in abutment with one of said piston sleeves.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |