Wellbore fluid sampler and method
Patent
·
OSTI ID:5606025
This patent describes a method of sampling a well. It comprises: running a fluid sampling tool into said well to a depth at which said well is to be sampled, initially preventing said actuating piston from moving said sample valve toward an open position wherein said sample port is communicated with said first chamber by isolating said second chamber from said third chamber and hydraulically blocking said actuating piston. This patent also describes a downhole tool apparatus. It comprises: a body having a low pressure chamber defined therein, and having a first port defined therein communicated with an outside of said body; a pressure responsive operating mechanism disposed in said body and having a first side communicated with said outside zone through said first port and a second side communicated with said low pressure chamber;p and disabling means for disabling said apparatus when fluid pressure in said outside zone exceeds a predetermined level.
- Assignee:
- Halliburton Co., Duncan, OK (USA)
- Patent Number(s):
- US 5058674; A
- Application Number:
- PPN: US 7-602840A
- OSTI ID:
- 5606025
- Country of Publication:
- United States
- Language:
- English
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