Well formation test-treat-test apparatus and method

Patent · Tue Jul 20 04:00:00 EDT 1982

OSTI ID:6695170

Hallmark, B J

This patent discloses apparatus and method for testing, then treating, then testing the same sealed off region of earth formation within a well bore. A sealing pad arrangement carried by the well tool to seal the test region to permit flow of formation fluid from the region is employed. A fluid sample taking arrangement in the tool is adapted to receive a fluid sample through the sealing pad from the test region and a pressure detector is connected to sense and indicate the build up of pressure from the fluid sample. A treating mechanism in the tool injects a treating fluid into said sealed test region of earth formation. A second fluid sample is taken through the sealing pad while the build up of pressure from the second fluid sample is indicated.

• Assignee: Gearhart Industries Inc
• Patent Number(s): US 4339948
• OSTI ID: 6695170
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
04 OIL SHALES AND TAR SANDS
040300 -- Oil Shales & Tar Sands-- Drilling
Fracturing & Mining
15 GEOTHERMAL ENERGY
150901 -- Geothermal Engineering-- Drilling Technology & Well Hardware
BOREHOLES
CAVITIES
PERMEABILITY
PLUGGING
TESTING
WELLS