Multiple purpose well tools
Patent
·
OSTI ID:6411998
A well tool adapted to conduct a plurality of testing or treating operations has telescoping inner and outer tubular members. These members are arranged with portions of varying cross-sectional area and fluid seals so that 2 chambers are formed within the annulus, one of which is maintained at atmospheric pressure. Well bore fluids are admitted to the other chamber, which creates a hydrostatic pressure and displaces the inner member upward. At the same time, the pressure also pushes the outer member down. The relative displacement of these 2 tubular members is used to give a quantitative interpretation of the hydrostatic formation pressure. (12 claims)
- Assignee:
- Schlumberger Technol Corp.
- Patent Number(s):
- US 3329209
- OSTI ID:
- 6411998
- Country of Publication:
- United States
- Language:
- English
Similar Records
Independent one-way acting hydraulic jar sections for a rotary drill string
Pressure-controlled well tester operated by one or more selected actuating pressures
Formation fluid testing and sampling apparatus
Patent
·
Tue Oct 07 00:00:00 EDT 1980
·
OSTI ID:6827314
Pressure-controlled well tester operated by one or more selected actuating pressures
Patent
·
Mon Mar 26 23:00:00 EST 1990
·
OSTI ID:6779331
Formation fluid testing and sampling apparatus
Patent
·
Mon Nov 21 23:00:00 EST 1983
·
OSTI ID:5364339