ES8705784A1 - Screw type downhole motor - Google Patents
Screw type downhole motorInfo
- Publication number
- ES8705784A1 ES8705784A1 ES551157A ES551157A ES8705784A1 ES 8705784 A1 ES8705784 A1 ES 8705784A1 ES 551157 A ES551157 A ES 551157A ES 551157 A ES551157 A ES 551157A ES 8705784 A1 ES8705784 A1 ES 8705784A1
- Authority
- ES
- Spain
- Prior art keywords
- rotor
- screw type
- downhole motor
- length
- type downhole
- 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.)
- Expired
Links
Landscapes
- Spinning Or Twisting Of Yarns (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The rotor of motor for driving a drill bit for deep wells, is a multi-start hollow screw which is fixed by a connector to a flexible shaft with the bit. The rotor has a constant wall thickness. The ratio of the length of the outer contour of the rotor cross-section to the length of the circumscribed circle should lie between 0.9 and 1.08. The rotor is produced by press forming of a tubular blank by radial external pressure against an internal mandrel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES551157A ES8705784A1 (en) | 1986-01-23 | 1986-01-23 | Screw type downhole motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES551157A ES8705784A1 (en) | 1986-01-23 | 1986-01-23 | Screw type downhole motor |
Publications (2)
Publication Number | Publication Date |
---|---|
ES551157A0 ES551157A0 (en) | 1987-05-16 |
ES8705784A1 true ES8705784A1 (en) | 1987-05-16 |
Family
ID=8490743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES551157A Expired ES8705784A1 (en) | 1986-01-23 | 1986-01-23 | Screw type downhole motor |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES8705784A1 (en) |
-
1986
- 1986-01-23 ES ES551157A patent/ES8705784A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES551157A0 (en) | 1987-05-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19970203 |