Apparatus for removing fluids from a well
Patent
·
OSTI ID:5309677
This patent describes a boom assembly for removing fluid from a well. It comprises: a boom adapted for mounting to a mobile support means; a standpipe mounted to the boom for engaging a wellhead, the standpipe passing through a cylinder and having a piston mounted thereto the piston being positioned in the cylinder for reciprocation under the influence of hydraulic fluid for raising and lowering the standpipe into and out of engagement with the wellhead; a winch adapted to be mounted to the mobile support means remotely from the standpipe and having a cable attached thereto; a support pulley mounted to the boom for routing the cable attached to the winch along the boom around the support pulley and down into the standpipe; a swab bar attached to the end of the cable and suspended below the support pulley in the standpipe and having a swab cup mounted thereto; and cable slack detection means comprising a pulley bearing against the cable between the support pulley and the standpipe and having a control cable attached thereto, the control cable being operably connected to a control valve for braking the winch when the swab bar is not suspended by the cable to slow the rate at which the cable is wound off of the winch and maintain relatively constant tension on the cable at all times.
- Assignee:
- NOV; EDB-92-106181; NOV-92-029059
- Patent Number(s):
- US 5097901; A
- Application Number:
- PPN: US 7-561894
- OSTI ID:
- 5309677
- Country of Publication:
- United States
- Language:
- English
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