US 5,394,941 A · Fracture oriented completion tool system

Abstract

A fracture oriented completion tool system for use in a casing string in a wellbore. The completion tool comprises a casing valve having a radioactive source therein, the orientation of which may be determined by use of a detector apparatus, such as a rotational gamma ray detector. The casing valve thus may be aligned with the fracture of a zone of interest in the well. A plurality of casing valves may be used, with at least one having a radioactive source. A swivel connection may be used to interconnect the casing valve so that housing ports therein may be aligned as the casing is run into the wellbore. In one preferred embodiment, the swivel connection is a locking swivel connection. A method of positioning a casing string in the well utilizing the completion tool is also disclosed.

Claims28

Dependent claims

A sliding sleeve casing tool apparatus for use in a casing string of a well, said apparatus comprising:

an outer housing having a longitudinal passageway defined therethrough and having a side wall with a housing communication port defined through said side wall;
a sliding sleeve slidably disposed in said longitudinal passageway and being selectively movable relative to said housing between a first position blocking said communication port and a second position wherein said communication port is communicated with said longitudinal passageway;
and
a radioactive insert attached to said housing in a predetermined relationship to said housing communication port, whereby a relative orientation of said outer housing within the well may be determined.

1 more element

Dependencies are inferred from the claim text.

Fracture oriented completion tool system

Life of this patent

Fracture oriented completion tool system

Life of this patent

Abstract

Claims28