Method and apparatus for full offset resistivity imaging for use in boreholes

A method of assembling a tool stack for imaging a circumference of a wall of a borehole with, microresistivity measurements, comprising the steps of:

• a) providing a first tool with deployable micro-resistivity pads, the first tool having first and second ends;
• b) connecting a second tool with the second end of the first tool, the second tool having deployable micro-resistivity pads, the pads of the second tool being circumferentially offset from the pads of the first tool;
• c) connecting a wireline with the first end of the first tool.

A method of imaging a wall of a borehole with micro-resistivity measurements, comprising the steps of:

• a) acquiring first imaging data of first portions of the borehole wall from a first tool;
• b) acquiring second imaging data of second portions of the borehole wall from a second tool, the second portions being circumferentially interposed between the first portions.

A method of telemetering data from a downhole tool to the surface, comprising the steps of:

• a) acquiring data from the tool by polling the tool at a polling rate;
• b) determining the amount of data received from the tool as a result of polling;
• c) modifying the polling rate to correspond to the amount of data received from the tool, wherein if the amount of data received from the tool increases the polling rate increases.

An apparatus for telemetering data from a downhole tool stack having plural tools to the surface, comprising:

• a) means for acquiring data from one of the tools at a polling rate;
• b) means for determining the amount of data received from the tool as a result of polling;
• c) means for modifying the polling rate to correspond to the amount of data received from the one tool, wherein if the amount of data received from the one tool increases the polling rate increases.