Method of well testing

Patent · Tue Jun 28 00:00:00 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
• Resource Relation: Patent File Date: Filed date 3 Jul 1985
• Country of Publication: United States
• Language: English

Related Subjects

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