Perforate, test and sample tool and method of use
This patent describes a downhole tool for testing fluid from a formation reservoir in a well. The tool comprising: a packer connectable to a tool string and sealingly engageable with a well bore such that a first well annulus is defined above the packet and a second well annulus is defined therebelow; a cylinder adjacent the packer and defining a central opening therethrough; an operating piston slidably disposed in the central opening of the cylinder; a fluid sampler disposed below the packer and defining a sampling chamber and a sample port therein in communication with the second well annulus. The sampling chamber having no communication with the tool string; and a valve connected to the piston for movement therewith and slidably disposed in the sampler for opening and closing the sampler port.
- Assignee:
- Halliburton Co., Duncan, OK
- Patent Number(s):
- US 4878538; A
- Application Number:
- PPN: US 7-312323A
- OSTI ID:
- 7229993
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method and apparatus for perforating well bores using differential pressure
Surging fluids downhole in an earth borehole