I know this post's old, and the technology advanced. But I have a 'dumb' question:
If i keep true to the KISS principle (Keep It Simple Stupid).
I hypothesize (if for now, you could allow me my paradigm(s) and oilfield terminology”¦)
Currently, extracting Oil and Gas from deeper in the subsurface requires us to case off and isolate ”˜zones of interest´. Then should we focus on the enabling technology - a conduit (a straw in a sponge) !?
Is it, fundamentally we cannot design a single straw with the required mechanical properties to ”œdrill” to the required depth(s); being exposed to the huge variety and uncertainty of stresses associated with lots of ”˜known, unknowns´ ? And thereafter reinstate (or enhance - stimulate) the mechanical properties of the rock for maximum production ? In doing so,
where zonal isolation is required; ”˜isolate´ (seal) off the required zones, be it by mechanical expansion (expandables) and or by filling the void with some other impermeable substance (cement, rubber, etc etc)
where the desire is to produce, we should be using ”˜non damaging´ methods to preserve rock properties and or thereafter reinstate / enhance the mechanical flow properties (gravel packing, stimulation / fracking, permeable fluids/cement that recognise hydrocarbons and block water / non desirables - ...etc etc)
use (premium) threaded connections (with or with or with dope now, if that´s what it takes to reduce make up friction / damage) ?
As a stepping stone for now, assuming using metal / steel is a value driver; can we design a casing connection robust enough; with sufficient fatigue resistance, and with the durability required of multiple make ups / break outs, such that we ”˜invent´ the ”œTop Drive Saver Sub” that allows us to Drill With Casing ?
That or ”œdrill with lasers”, assuming that does not require the straw to have such ”˜onerous´ mechanical properties ?
This company did a big show and tell for Aramco in 2007, and it was supposed to be game changer. But never took off !? Impact on the Steel Industry ? Know-how coming from the wrong country ??
Too many questions - answers only required for no on a saver-sub with a ”œlarge” OD premium connection, capable of multiple make and breaks please”¦that or what am missing out on (prefer smart answers if it's a dumb question) ?