1. Tubing conveyed seismic acquisition device, comprising a source andor a sensor module for placement between a well casing and a production pipe, wherein the source andor sensor module comprises a block equipped with acoustic transducers andor sensor devices, and clamping devices for clamping the block against the well casing.
2. Acquisition device according to claim 1, characterized in that the block comprises:
a device for locking the block to the module in a first position where the block’s surface is in flush with the module’s surface,
a device for releasing the locking device,
a device for clamping the block against the casing, and
a fluid circuit for controlling the operation of the locking and releasing devices.
3. Acquisition device according to claim 2, wherein the fluid circuit comprises:
a first chamber containing a fluid under pressure,
a second chamber containing a fluid under a lower pressure,
a rupture disc being arranged between the chambers,
the first chamber being connected to the locking device for controlling its position as a function of the fluid pressure in said first chamber,
the first chamber being also connected to the release device, this device controlling fluid supply and thus pressure in the first chamber,
the release device being adapted to increase pressure in the first chamber until rupture of the rupture disc, which causes the release of the locking device.
4. Acquisition device according to any of the preceding claims, wherein the clamping device comprises at least one permanent magnet arranged on the block’s surface facing the casing.
5. Acquisition device according to any of the preceding claims, wherein the clamping device comprises at least one spring device arranged on the block’s surface facing the production pipe.
6. Acquisition device according to any of the preceding claims, wherein the clamping device comprises at least one permanent magnet arranged on the block’s surface facing the production pipe for cooperation with a repellent permanent magnet arranged on the source module.
7. Acquisition device according to any of the preceding claims, characterised in that the locking device in the block comprises locking pins for cooperation with sockets in the source module.
8. Acquisition device according to any of the preceding claims, characterised in that it comprises spacers arranged on the surface of the block adapted for apposition against the casing.
9. Acquisition device according to one of the preceding claims, characterised in that it comprises at least one geophone and at least one accelerometer.
10. Acquisition device according to one of the preceding claims, characterized in that the device is an acoustic source.
11. Acquisition device according to one of the preceding claims, characterized in that the device is an acoustic sensor.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A gas turbine engine comprising:
a spool;
a towershaft connected to the spool;
an impeller pump having a discharge and an outlet duct connected to said discharge, said outlet duct being connected to an aircraft pre-cooler used in an environmental control system;
an integrated drive pump connected to said towershaft and to said impeller pump for driving said impeller pump at a constant speed;
an engine core and said integrated drive pump being positioned on said engine core; and
a fan and a bypass duct between a cowl and said engine core, an intake manifold for said impeller pump, and said intake manifold receiving air from said bypass duct.
2. The gas turbine engine according to claim 1 further comprising at least one heat exchanger located within said intake manifold.
3. The gas turbine engine according to claim 2, further comprising two heat exchangers located within said intake manifold.
4. The gas turbine engine according to claim 2, wherein said at least one heat exchanger comprises at least one air-oil cooler for a thermal management system.
5. The gas turbine engine according to claim 1, further comprising a valve connected to said outlet duct for controlling flow through said outlet duct.
6. The gas turbine engine according to claim 1, wherein said spool comprises a low pressure spool for driving a low pressure compressor.
7. The gas turbine engine according to claim 1, wherein said spool comprises a high pressure spool for driving a high pressure compressor.
8. The gas turbine engine according to claim 1, wherein said impeller pump comprises a centrifugal impeller pump.
9. The gas turbine engine according to claim 1, wherein said towershaft is connected to said spool via a gear.
10. The gas turbine engine according to claim 1, wherein said fan produces thrust producing air flow.