The idea of nanotechnology if applied in any of the technological fields will put LWD and MWD as outdated technology and can prove to be a boon for the next technical revolution. Already postulated to be effective in medical science such as destruction of disease causing bacteria or drug targeting, the nanorobots could be used for logging purpose by circulating these nanorobots, which have nonomotors being driven by the ions in the mud or by mud circulation system. Expensive wireline tools are conventionally used in all types of wells to find important formation properties. I have come up with an idea of nanorobots for oil field logging. Nanorobots can eliminate use of these tools, entirely and small particles of order of nanocentimeter can be put in the drilling mud to obtain useful information. These robots equipped with nanosensors could be used to measure various properties of formation, borehole environment, mud properties and many more. Nanorobots can be constructed in a manner so that they possess sensors, on-board driving mechanism and microcomputer as well as interface mechanism from where it can send instructions to microcomputers from surface computers. Transmission to surface is by means of electromagnetic waves and detected by means of probes on surface. They facilitate wire-less communication and real time surveillance. Thus in comparison to the conventional logging they can save rig hours and can be more accurate and precise as compared to presently used techniques like logging while drilling and measurement while drilling. They can move with circulating mud or they can be made to propel or stop by the on-board computer instructions depending upon the measurement to be taken. They will also be able to invade the formation and get important petrophysical parameters.
In 1959 physicist Richard Feynman gave a talk at the annual meeting of American Physical Society entitled "There is Plenty of Room at the bottom". This can be seen as the birth of nanotechnology. Defining "Nanotechnology" The term itself is a combination of two meaningful parts (what linguists call ‘morphemes’) NANO + TECHNOLOGY
What are Nanorobots? Nanorobotics is concerned with
the construction of robots with overall dimensions in nanometers (10^-9 m) range, or of robots with micrometer (10^-6 m) sizes but nanometer scale components
programming large numbers (swarms) of such nanorobots; and
the manipulation and assembly of nanometer scale objects with macro and micro devices.
" But to be clear in my Idea size of these robots is in order of cm".
The main element will be used is carbon in the form of diamond/fullerene nanocomposites because of the strength and chemical inertness of these forms.
Probable Uses of Nanorobots:
Removal of pathogens DNA analysis
Immune machines are medical nanomachines designed for human body.
These machines will be able to identify and disable intruder like bacteria and viruses. It will be able to travel through the blood stream and check anywhere for foreign cells, when working property, attack and eliminate anything that should not be there. They can be programmed with information that will enable them to clearly distinguish between their targets and objects.
All these applications have been postulated for medical applications, if correctly modified can be used in SPE 104280 Nanologging: Use of Nanorobots for Logging Pratyush and Sumit Bhat, Halliburton India petroleum industry.