Depth Time Recorder (DTR)

Memory based logging tools record their data against time. To provide a log in a standard format it is necessary to also record the measure depth against time, then match and merge together the two time based data sets resulting in a log which has curve data against depth.

Description

The DTR is used to record measured depth and other surface signals such as tension, against time when the tools are deployed in the well. It is connected to the coil tubing or cable encoder. The DTR has push button controls and a backlit LCD to display several parameters including depth, tension and line speed. Connections for a shaft encoder and up to 4 analogue data channels are also provided.

Data is recorded against time using an internal non-volatile real time clock; this has its own long life internal battery. DTR options are selected from a control menu by the operator - inputs such as, depth measuring wheel circumference, analogue calibrations and depth/tension alarms can be entered. The unit can be powered from internal batteries or external mains and DC.

Features

• Time based depth recorder.

• Use for all memory cased hole logging services.

• Record time based analogue signals.

• Intrinsically safe version available.

• On/off switch, backlight switch and four push button controls.

• Records data in imperial or metric units.

• Re-chargeable and non-rechargeable internal batterys.

• RS232 download to PC.

• Suitable for coil tubing or slickline operations.

Ver B Sept 2007