Technology

19 Aug Geochemical Logging Tool (GLT*)

Description [caption id="attachment_849" align="alignright" width="256"] Figure 1. Schematic of the GLT tool[/caption] Geochemical Logging Tool (GLT) used three separate modes of gamma-ray spectroscopy to obtain measurements of most of the major oxides that make up sedimentary and igneous rocks. Initial measurements provided estimates of Si, Al, Fe, Ca, K, U and...

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19 Aug General Purpose Inclinometry Tool (GPIT*)

Description The GPIT* General-Purpose Inclinometry Tool provides inclinometer measurements. Tool orientation is defined by three parameters: tool deviation, tool azimuth, and relative bearing. The GPIT tool uses both a three-axis inclinometer and a three-axis magnetometer to make measurements for determining these parameters. The basic principle of downhole...

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19 Aug Dipole Sonic Imager Tool (DSI-2*)

Description The Dipole Sonic Imager Tool (DSI-2) combines high-speed telemetry with simultaneous, 12-bit dynamic range digitization of an eight-receiver array. The sonde incorporates both monopole and crossed-dipole transmitters with an eight-station array of electronically configurable hydrophones for monopole and dipole reception. Combining new dipole-based technology with...

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19 Aug Dual Laterolog (DLL*)

Description The Dual Laterolog (DLL) provided two resistivity measurements with different depths of investigation into the formation: deep (LLd) and shallow (LLs). In both devices, a current beam 2 ft-thick (A0) was forced horizontally into the formation by using focusing (also called bucking) currents (A1- A2,...

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18 Jul Formation MicroScanner (FMS*)

Description [caption id="attachment_473" align="alignright" width="180"] Sixteen-electrode arrangement for the four-pad tool.[/caption] The Formation MicroScanner sonde (FMS) consists of four orthogonal imaging pads each containing 16 microelectrodes which are in direct contact with the borehole wall during the recording. The button current intensity is sampled every 0.1 in...

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13 Jun Accelerator Porosity Sonde (APS*)

Description The APS sonde is the key module in the  Integrated Porosity Lithology system components. The electronic neutron source (minitron) allows epithermal neutron measurements and detector shielding, resulting in porosity values that are less influenced by environmental conditions. The near-array ratio epithermal porosity is the primary...

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