초록 ▼

A system for preferable use in gravel packing is disclosed which includes a plurality of transport tubes which are mounted outside of gravel pack screens. The multiplicity of shunt tubes cover a particular zone so that the tubes have a varying length to deposit gravel at different portions of the zo

A system for preferable use in gravel packing is disclosed which includes a plurality of transport tubes which are mounted outside of gravel pack screens. The multiplicity of shunt tubes cover a particular zone so that the tubes have a varying length to deposit gravel at different portions of the zone. The tops of the tubes are preferably sealed until ready for use and activated by applied pressure. In the preferred embodiment, rupture discs are found at the tops of each of the tubes, set for different pressures so as to open up the transport tubes to the lower most portion of a particular zone and later in sequence to the higher-most portion. The transport tubes are affixed to each section of pipe and are made up when two sections of pipe are made up to alignment marks. When the marks are aligned, the transport tube segments from each pipe section are in an aligned and sealed relation while the tool joint is properly torqued.

대표청구항 ▼

1. A tubular connection apparatus comprising:at least a first tubular having a first bore and a first connection at at least one end and at least a first transport tube segment having an inner and outer wall, out of fluid communication with said first bore, and having a first longitudinal axis, and

1. A tubular connection apparatus comprising:at least a first tubular having a first bore and a first connection at at least one end and at least a first transport tube segment having an inner and outer wall, out of fluid communication with said first bore, and having a first longitudinal axis, and extending from adjacent said first connection; at least a second tubular having a second bore and a second connection at at least one end and at least a second transport tube segment having an inner and outer wall, out of fluid communication with said second bore, and having a second longitudinal axis, and extending from adjacent said second connection; said first and second connections joinable by relative rotation of said first and second tubulars, whereupon said longitudinal axes of said transport tube segments are rotated into sealing alignment when a predetermined torque is applied to secure said first connection to said second connection.