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Drilling Professionals, �, Suez (2026)

10/08/2026

Now We Know Why It’s So Hot in the Oilfield. 😂🔥

10/08/2026

A remarkable journey of innovation that helped shape modern oilfield technology.

A fascinating story every oilfield professional should know.

🔥 SLB: The Company That Taught the Oilfield How to See Underground

Long before real-time drilling data, AI, digital twins, and advanced formation evaluation, there was a much simpler question:

How do you know what is happening thousands of feet beneath your feet?

In 1926, two brothers, Conrad and Marcel Schlumberger, founded the company that would become one of the most influential technology companies in the history of the oilfield.

Their breakthrough came in 1927.

At the Pechelbronn field in Alsace, France, a team led by physicist Henri-Georges Doll lowered an electrical sonde into a 500-meter-deep well and recorded what became the world's first electrical resistivity well log.

It was a simple graph.

But the idea was revolutionary.

For the first time, engineers could use electrical measurements from inside a well to understand the formations around it and identify differences that could reveal potential hydrocarbon-bearing zones.

The oilfield had started to see underground.

And that was only the beginning.

By the 1930s, Schlumberger had introduced continuous-recording logging and the spontaneous potential log. Its technology spread across major oil-producing regions, and the company continued developing new ways to measure, characterize, and understand the subsurface.

Then came decades of innovation:

🔹 Formation evaluation
🔹 Wireline logging
🔹 Well testing
🔹 Reservoir characterization
🔹 Drilling and well construction technologies
🔹 Completions and production solutions
🔹 Digital technologies and data analytics
🔹 Automation and AI
🔹 New technologies supporting the energy transition

Today, SLB operates in more than 100 countries, with more than 900 facilities worldwide and a workforce representing more than 172 nationalities.

But perhaps the most impressive part of the story is this:

SLB didn't simply build oilfield equipment.

It helped create an entirely new way of thinking about the subsurface.

From a hand-plotted resistivity curve in 1927...

to modern sensors, high-performance computing, digital workflows, and advanced interpretation...

the fundamental challenge remains the same:

Understand what is happening downhole before making the next decision.

That is what makes the Schlumberger story so important to the oilfield.

A century later, the technology has changed dramatically.

The curiosity hasn't.

🛢️⚙️ 100 years of innovation.
One industry.
One enormous challenge: understanding what lies beneath our feet.

Now let's make this one for the drilling and oilfield professionals:

👇 What do YOU think is the most important Schlumberger innovation in oilfield history?

Wireline? Formation evaluation? MWD/LWD? Well testing? Completions? Digital technology?

Or something else?

Drop your answer below. Let's see what the oilfield community thinks. 👇