Breaking The Latest Record! China's First 10,000-meter Scientific Exploration Well Pushes 8,500 Meters Underground

Recently, by the Xinjiang Academy of Building Research (Limited Liability Company) (hereinafter referred to as: Xinjiang Academy of Building Research) to participate in the construction of the world's second onshore vertical depth of 10,000 meters, China's first 10,000 meters of scientific exploration wells in the deep ground Taco 1 well drilling rig foundation construction project, the depth of the depth of successfully exceeded the 8,500-meter mark in full force to the target depth of the well.

The target drilling depth of Deep Earth Taco 1 well is 11,100 meters, located in the hinterland of the Taklamakan Desert, the geological structure is extremely complex, the drilling machinery into the ground 8500 meters, but also to withstand high temperatures of more than 155 ℃, 1,100 times the atmospheric pressure of high pressure and other challenges, each deeper than a meter, the drilling difficulty is very large. In this regard, it will break the traditional drilling organization form of "professional division, management division", build an interdisciplinary work platform, promote the integration of engineering geology, scientific research and production integration, so that multi-disciplinary, multi-disciplinary close cooperation, synergistic operation, for the 10,000-meter deep well drilling "escort! "The project is heavy, deep and large.

The project is characterized by heavy, deep, large and new. Heavy refers to the well drilling rig developed by our country, its own and casing weight more than the previous drilling rig, the load can reach a maximum of 2,190 tons; deep refers to the design depth of the well 11,100 meters, the completion of the well will make our country become the world's second country drilling more than 10,000 meters of vertical depth; large refers to the well drilling rig for our country's first automated drilling rig, drilling rig, large load, large displacement of the mud pumps, the first time that the mud pump of the well with three sets of DQP-3000 type five-cylinder drilling pump single drilling pump than the previous F-2200HL type three-cylinder drilling pump maximum power increased by 800 horsepower; new refers to the desert sand for the natural foundation bearing capacity can not meet the safety requirements for drilling, means that the existing mature construction technology can not be directly applied to the problem, the Xinjiang Uygur Autonomous Region, the first engineering survey design master, deputy chief engineer of the Xinjiang Academy of Building Research, the chief expert Liu Liu Xuejun, chief engineer and chief expert, led the scientific research team to go deep into the project site, and made use of the results of the scientific research topic of "Research and application of key technology of foundation foundation for transportation and energy infrastructure construction in the desert hinterland" of the institute, and proposed to adopt the foundation program of "Desert sand dry compression + crushed stone soil bedding". The foundation program is proposed to adopt "desert sand dry compression + gravel soil bedding". During the implementation of the project, the technicians overcame the unfavorable conditions such as difficult site conditions and logistical difficulties to complete the foundation construction, contributing to the smooth implementation of the 10,000-meter well.

In the five months since the Deep Earth Taco 1 well was drilled, the integration and synergy of multi-disciplines in drilling, exploration, geology and engineering have supported the well to achieve a 100% pass rate in key wellbore quality indicators, such as well slope, well diameter, cementing, logging and so on.

In the next step, Xinjiang Academy of Building Research will actively cooperate with the work of Deep Earth Taco 1 well to break through the 10,000 meters underground mark as soon as possible.