As global oil and gas exploration and development fully advance into deep to ultra-deep layers and complex offshore formations, drilling engineering no longer faces merely "harder and deeper" challenges, but a battle for survival approaching physical limits.
At the bottom of a 10,000-meter well, temperatures approach 215°C—enough to melt conventional electronic components; pressure reaches 207 MPa—more than double the pressure at the deepest point of the Mariana Trench; the drill bit endures positive and negative 500g impact forces, equivalent to violent vibrations several times greater than those experienced during spacecraft launches. Behind these figures lies the brutal reality that the drill bit could be torn apart in an instant with every rotation.
Conventional downhole measurement tools often survive only a few hours in this "death zone," let alone transmit accurate data back to the surface in real time. Deep drilling has long faced the predicament of "blind drilling"—engineers cannot obtain the real working conditions at the drill bit and can only rely on empirical estimations, akin to walking blindfolded on a cliff edge.
The research team from CNPC Engineering Technology R&D Institute spent many years painstakingly opening up this "perception channel" to depths of 10,000 meters.
Integrated "Drilling–Perception–Decision" System Breaks the Deadlock
Starting from the materials end, the team overcame multiple key technical challenges, including downhole measurement under extreme working conditions, integrated structural design, strong erosion resistance, and precise perception of drilling dynamics. The UltraSense ultra-high temperature and high-pressure smart drill bit achieved breakthroughs in core performance, including resistance to 215°C high temperatures, 207 MPa high pressure, and ±500g impact, extending precise downhole measurement capabilities to ultra-deep wells of 10,000 meters.
A more significant leap is that the team implanted "intelligence" into the drill bit—forming an integrated technical system of "Drilling–Perception–Decision." The drill bit is no longer a consumable that "goes down and never returns," but transforms into an intelligent sensor capable of operating independently at depths of 10,000 meters. It can collect real-time downhole dynamics data such as vibration, stick-slip, and impact, providing surface engineers with a direct source of downhole measurement information, completely eliminating the blind spot of being "unable to see or feel" in 10,000-meter deep drilling.
In early 2026, this technology was successfully deployed in the ultra-deep risk exploration well Shendi Chuanke 1 in the Sichuan-Chongqing region. It operated stably for 415 hours in a 10,000-meter well section under extreme conditions of 193°C/140MPa, successfully capturing critical well engineering data used to accurately characterize downhole conditions. From "blind extraction" to "data-guided operation," this drill bit provides solid and reliable data support for intelligent identification of downhole conditions, upgrading intelligent drilling technology, and optimizing the design of next-generation drill bits.
A "Trillion-Level" Application Prospect in Sight
"Shendi Chuanke 1" is not an isolated case. Worldwide, 10,000-meter class ultra-deep wells have long become a strategic battleground for oil and gas, geothermal energy, and cutting-edge deep earth scientific drilling. The strategic value of breakthroughs in high-end drilling equipment, represented by the UltraSense ultra-high temperature and high-pressure smart drill bit, lies precisely in this:
From the perspective of loss reduction and efficiency improvement, the daily cost of 10,000-meter deep operations often amounts to tens of millions of yuan, with downhole incidents like stick-slip and pipe sticking being the largest uncontrollable factors. By perceiving the drilling status in real time, this drill bit converts ambiguous working conditions into quantifiable data, providing direct support for optimizing drilling parameters and identifying downhole risks, thereby reducing non-productive time and increasing the success rate of drilling in complex formations.
From the perspective of resource potential, global deep and ultra-deep layers hold enormous oil and gas resources, but constrained by perception capabilities under extreme working conditions, most resources have long been difficult to exploit economically and effectively. This technology completes the closed loop of "deep well perception—decision optimization," providing a reliable technical fulcrum for the large-scale development of deep earth resources.
From the perspective of technological iteration, direct measurement data from the drill bit end is a key source of information for new drill bit design, drilling algorithm upgrades, and intelligent advancement. UltraSense's "perception" capability is accelerating the transformation of drilling from "experience-driven" to "data-driven," propelling the entire high-end drilling technology chain toward a higher stage of intelligence.
From "Following and Running Alongside" to "Leading the Pack"
The OTC Annual Spotlight on New Technology Award selects the most innovative cutting-edge achievements globally each year in directions such as drilling, completion, and digital intelligence, and is recognized as a benchmark by the international oil and gas industry. Internationally renowned oil companies have always been the core recipients of this award. This year, CNPC's breakthrough demonstrates that China's overall strength in deep and ultra-deep drilling technology has gained international recognition.
From "following and running alongside" to "leading the pack," the birth of the UltraSense ultra-high temperature and high-pressure smart drill bit is the fruit of years of deep cultivation in research and development. This breakthrough not only breaks foreign technological monopolies but also allows China to seize the initiative in mastering core tools for future deep earth and deep sea development. It signifies that China has officially entered the international leading echelon in some key technical indicators in the field of deep and ultra-deep drilling.
215°C is the temperature at the edge of molten rock, 207 MPa is the pressure that challenges structural limits, and ±500g impact is the violent force that tears apart any conventional design. But as these limits are conquered one by one, the answer provided by CNPC Engineering Technology R&D Institute is crystal clear—with independent innovation as the blade and intelligent perception as the eyes, China's high-end drilling equipment has stepped into the "no man's land" of deep and ultra-deep layers, previously monopolized by a very few companies. The 10,000-meter drilling of Well Shendi Chuanke 1 is merely the prelude. A new era of deep earth development, driven by data intelligence, is accelerating towards us.