Oil or gas well workover technique
A method of working over a well producing from a subterranean formation and having a casing string cemented in a well bore penetrating the formation, a tubing string inside the casing string and a packer sealing between the tubing string and the casing string is described comprising running into the tubing string a perforating mechanism and creating a passageway across the tubing string into the inside of the casing string by driving a member through the tubing string; running into the tubing string, on a wire line, a jet pump assembly having a lower suction inlet, an upper discharge outlet and a power fluid inlet between the suction inlet and the discharge outlet, first seal means above the power fluid inlet and second seal means below the power fluid inlet, manipulating the wire line and activating the first and second seal means for sealing against the inside of the tubing string above and below the passageway; and placing the well back on production by injecting a power fluid downwardly into the well, passing the power fluid through the passageway across the tubing string into the power fluid inlet and delivering liquids from the formation upwardly through the well.
- Assignee:
- NOV; NOV-88-003068; EDB-88-077455
- Patent Number(s):
- US 4716970
- OSTI ID:
- 5432223
- Resource Relation:
- Patent File Date: Filed date 22 Sep 1986
- Country of Publication:
- United States
- Language:
- English
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