Patent US3675718A successfully refreshed from Google Patents.
US3675718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conducting operations in a well through a normally closed valve
Assignee: ExxonMobil Upstream Research Co
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Filing: 1970-09-11
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Granted: 1972-07-11
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Expires: 1990-09-11
Abstract
Abstract An operation is conducted in a well below a normally closed valve therein having a full open bore therethrough which involves running a tubular member having a passageway therethrough into the well from a reel at the earth''s surface and releasably connecting the tubular member to the normally closed valve. Fluid pressure introduced through the tubular member from the earth''s surface or before the valve is introduced to the well is provided to open the valve and thereafter a well operation is performed through the full open bore and below the valve. The well operation may include a workover operation such as acidizing, cementing, stimulating, sand consolidation, perforating, and the like.
Inventors
- 👤 William E Kanady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:17
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; E21B34/10; E21B23/00; E21B23/04; E21B23/042; E21B34/102; E21B2200/00; E21B2200/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
91 words
A method for conducting an operation in a well below a normally closed valve therein having a full open bore therethrough which comprises: running a tubular member having a passageway therethrough into said well from a reel at the earth''s surface; releasably connecting said tubular member to a normally closed valve; introducing fluid pressure to open said valve; removing said tubular member from said well with said reel; and then performing a well operation in which a well tool is run through said full open bore and operated below said valve.
Claim 2
Independent Claim
91 words
A method for conducting an operation in a well below a normally closed valve therein having a full open bore therethrough which comprises: running a tubular member having a passageway therethrough into said well from a reel at the earth''s surface; releasably connecting said tubular member to a normally closed valve; introducing fluid pressure to open said valve; removing said tubular member from said well with said reel; and then performing a well operation in which a well tool is run through said full open bore and operated below said valve.
Claim 3
Dependent Claim
27 words
A method in accordance with claim 1 in which said well operation comprises introducing fluid through said tool and said full open bore and below said valve.
Claim 4
Dependent Claim
13 words
A method in accordance with claim 2 in which the fluid is cement.
Claim 5
Dependent Claim
18 words
A method in accordance with claim 1 in which the fluid pressure is introduced through said tubular member.
Claim 6
Dependent Claim
29 words
A method in accordance with claim 1 in which the fluid pressure is introduced at the earth''s surface to open said valve before it is run into the well.
Claim 7
Dependent Claim
14 words
A method in accordance with claim 1 in which the fluid is a liquid.
Claim 8
Dependent Claim
19 words
A method in accordance with claim 1 in which said valve is closed after operating and removing said tool.
Claim 9
Dependent Claim
21 words
A method in accordance with claim 1 in which the well tool is a perforator which is operated below said valve.
Claim 10
Dependent Claim
21 words
A method in accordance with claim 1 in which the perforator is a gun perforator which is retrieved after operating same.
Claim 11
Dependent Claim
23 words
A method in accordance with claim 1 in which the well tool is a tubular member through which said well operations are performed.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |