ES8705784A1 - Screw type downhole motor - Google Patents

Screw type downhole motor

Info

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
Application number
ES551157A
Other languages
Spanish (es)
Other versions
ES551157A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PERM VNII BUROVOJ TEKHN
Original Assignee
PERM VNII BUROVOJ TEKHN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PERM VNII BUROVOJ TEKHN filed Critical PERM VNII BUROVOJ TEKHN
Priority to ES551157A priority Critical patent/ES8705784A1/en
Publication of ES551157A0 publication Critical patent/ES551157A0/en
Publication of ES8705784A1 publication Critical patent/ES8705784A1/en
Expired legal-status Critical Current

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.
ES551157A 1986-01-23 1986-01-23 Screw type downhole motor Expired ES8705784A1 (en)

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)

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