US3908256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a deep well screen
Assignee: Halliburton Co
•
Filing: 1973-09-24
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Granted: 1975-09-30
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Expires: 1993-09-24
Abstract
Abstract Deep well screen and method of making same wherein a wire screen sleeve having longitudinal wires arranged in a generally cylindrical shape, with external wrapping wire welded thereto, is positioned over a perforated pipe having an external diameter substantially equal to the internal diameter of the sleeve, and wherein annular welds are provided between each end of said wire screen and said pipe to close the space therebetween at such ends and to secure the sleeve to the pipe without exceeding the external diameter of said wrapping wires.
Inventors
- 👤 Iii Howard F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:55
CPC Classifications
B; B23; B23P; B23P15/00; E; E21; E21B; E21B43/00; E21B43/02; E21B43/08; E21B43/088; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/496; Y10T29/49602
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
150 words
A method of making a well screen sleeve which is adapted for use in deep wells with a pipe having a perforated section, comprising: forming a wire screen sleeve unit by wrapping screen wire on a plurality of circumferentially spaced longitudinal rib wires and welding said screen wire to said rib wires in a relationship to provide predetermined fluid passages through the wrapped screen wire; thereafter, positioning said formed wire screen sleeve unit over a pipe having a perforated section so as to surround said perforated section with said wire screen sleeve unit; and making an annular welded connection between each end of said wire screen sleeve unit and said pipe to block flow of well fluids by the ends of the wire screen sleeve unit and force flow from externally of said wire screen sleeve unit to pass through the predetermined fluid passages formed by the wrapped screen wire.
Claim 2
Independent Claim
150 words
A method of making a well screen sleeve which is adapted for use in deep wells with a pipe having a perforated section, comprising: forming a wire screen sleeve unit by wrapping screen wire on a plurality of circumferentially spaced longitudinal rib wires and welding said screen wire to said rib wires in a relationship to provide predetermined fluid passages through the wrapped screen wire; thereafter, positioning said formed wire screen sleeve unit over a pipe having a perforated section so as to surround said perforated section with said wire screen sleeve unit; and making an annular welded connection between each end of said wire screen sleeve unit and said pipe to block flow of well fluids by the ends of the wire screen sleeve unit and force flow from externally of said wire screen sleeve unit to pass through the predetermined fluid passages formed by the wrapped screen wire.
Claim 3
Dependent Claim
30 words
The method set forth in claim 1, wherein: each of said annular welds is formed with its external diameter not substantially greater than the external diameter of said screen wires.
Claim 4
Dependent Claim
38 words
The method set forth in claim 1, including: screen said wrapping wire helically on said rib wires; and welding said screen wire to said rib wires at each crossing point of said screen wire with said rib wires.
Claim 5
Dependent Claim
24 words
The method set forth in claim 1, including: wrapping said screen wire exteriorly of said rib wire when forming the wire screen sleeve unit.
Claim 6
Dependent Claim
42 words
The method set forth in claim 1, including: securing said wire screen sleeve unit with the pipe when forming the annular welds for preventing rotation of said sleeve unit relative to said pipe at each end of said wire screen sleeve unit.
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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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |