Downhold cleanout tool
Patent
·
OSTI ID:6900443
This patent describes a well cleanout tool connectable with apparatus; such as wire line, well string or the like for lowering the tool into and reciprocating it in a well bore to pump debris laden well bore fluid into the tool. It comprises: an upper tubular member having upper and lower ends, with the upper end connectable with the apparatus; a non-circular member connected with the lower end of the upper tubular member; the upper and non-circular members having a longitudinal flow passage therethrough; means forming a longitudinally extending cylindrical pump chamber with upper and lower ends and receiving through the upper end of the pump chamber the non-circular member for up and down movement in the pump chamber; seal means; travelling valve means; a lower tubular member; upper and lower standing valve means; and port means.
- Assignee:
- Cavins Corp., Houston, TX (USA)
- Patent Number(s):
- US 4924940; A
- Application Number:
- PPN: US 7-030128A
- OSTI ID:
- 6900443
- Country of Publication:
- United States
- Language:
- English
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