DarkPulse Inc (DPLS)

[just Scottie]

HALIBURTON is into fiber optics.

Development of fiber-optic sensing systems is not stand-
ing still. Step-changes in resolution and accuracy are occurring not only with the existing sensor types but also
with new sensing techniques that are emerging that will
make permanent installations even more valuable going forward. The application suite in this area is not yet mature. The more the industry digs into the raw data, the more value is being found.
Where the industry was happy with just a noise log from a DAS just a few years ago, it is now digging into the meaning of the frequency content of the data stream to tease out fluid density and other parameters.
The ability of the DAS to pick up and transmit data from other sensors is just now being investigated. Imagine being able to drop a sensor ball down a well that would take and acousti- cally transmit readings to a fiber line cemented behind casing. Fiber exposed to wellbore fluids can be used for spectroscopy or to identify the location and quantities of tracers in situ.
Recent tests have shown that a simple piece of glass fiber can pick up seismic energy and be used to create a vertical seismic pro- file (VSP) without the use of conventional geophones. The sig- nal-to-noise ratio is poor at this time, but the sensor count is or- ders of magnitude larger than most conventional geophone arrays deployed downhole.
By packing such a wide variety of sensors into a single, sim- ple package, the operator can replace multiple conventional sys- tems while reducing monitoring complexity and cost. If opera-
Figure 4: A noncalibrated reservoir model is compared to
a calibrated reservoir model that used fiber-optics data to determine optimum completion and well-spacing strategy for the next drilling pad.
tors want a horizontal production log, they can rent a data col- lection computer for a day rather than mobilizing a coiled tub- ing (CT) unit.
For a VSP, all that an operator needs is the vibe truck. For leak detection, rent or turn on another type of box. If the operator wants to upgrade its sensor to the latest technology, just change the hardware at the surface and leave the downhole sensor alone. All of the complex and expensive equipment is at the surface, while only glass and metal are downhole.
In some cases a completely new sensing technology can be added to the system by simply adding a new type of surface interrogator. Over the life of a well, this monitoring model has significant economic appeal. Although costs are coming down, even today most installations would pay for themselves if two or three horizontal logs were to be run during a well’s life. Permanent installations are just one option.
There are also requests for fiber-enabled wireline, slickline, and CT. Pumpable systems allow the fiber to be easily changed out as glass chemistry improves. In short, there are now many ways to “turn the lights on” downhole and make the earth transparent through fiber-optic sensing.

https://www.halliburton.com/content/dam/ps/public/pinnacle/contents/Papers_and_Articles/web/hart-energy-fiber-optics.pdf

Fiber-Optic Sensing:
Turning the Lights on Downhole- only DarkPulse BOTDA sensors offer sub-meter resolutions for downhole monitoring in real time, @Halliburton @HalliburtonLabs #upstream https://t.co/cNiolbWR60

— DarkPulse Inc. (@darkpulse) October 2, 2020