Method of well testing

Patent · Tue Jun 28 04:00:00 EDT 1988

OSTI ID:6785201

Ringgenberg, P D; Burris, W J

A method is described of flow testing a formation in a wellbore, comprising: providing a testing string including at least one annulus pressure responsive tool bore closure valve; providing a packer and setting the packer in the wellbore to seal thereacross; running the testing string into the wellbore with the tool bore closure valve in an open position; stinging into the set packer with the bottom of the testing string; increasing pressure a first time in the wellbore annulus around the testing string and above the set packer without cycling the tool bore closure valve; reducing pressure in the wellbore annulus; closing the tool bore closure valve responsive to the pressure reduction; increasing pressure a second time in the wellbore annulus; reopening the tool bore closure valve responsive to the second increase; and flowing fluids from the formation through the reopened tool bore closure valve.

• Assignee: Halliburton Co., Duncan, OK
• Patent Number(s): US 4753292
• OSTI ID: 6785201
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
CONTROL EQUIPMENT
DRILL PIPES
DRILLING EQUIPMENT
EQUIPMENT
FLOW REGULATORS
FLUID MECHANICS
HYDRAULICS
MECHANICS
NATURAL GAS WELLS
OIL WELLS
PACKINGS
PIPES
PRESSURIZING
SEALS
TESTING
TOOLS
VALVES
WELLS