초록 ▼

A service tool for use in completion operations includes a fluid control apparatus therein. The apparatus permits variable regulation of fluid flow downhole, selective opening and closing of multiple fluid ports in the apparatus, protection against overpressurization and communication with the earth

A service tool for use in completion operations includes a fluid control apparatus therein. The apparatus permits variable regulation of fluid flow downhole, selective opening and closing of multiple fluid ports in the apparatus, protection against overpressurization and communication with the earth's surface. Each of these functions is accomplished by displacing a member of the apparatus with an electromechanical device. In particular, data transmission is performed by displacing the member relative to a fluid port to thereby produce pressure pulses in a fluid flowing therethrough.

대표청구항 ▼

[ What is claimed is:] [1.] A method of transmitting data from a tool operatively positioned within a subterranean well, the method comprising the steps of:disposing a restrictor member in an internal return flow passage of the tool operative to return fluid therethrough in an uphole direction durin

[ What is claimed is:] [1.] A method of transmitting data from a tool operatively positioned within a subterranean well, the method comprising the steps of:disposing a restrictor member in an internal return flow passage of the tool operative to return fluid therethrough in an uphole direction during operation of the tool;