On April 8th, news came from Zhongyuan Petroleum Engineering Company that the new nano-reinforced super-hard PDC composite chip drill produced by the company's tube tool company's diamond drill factory-Φ311.1 six-blade drill, in Jiao Ye 182 -3HF well is well used during the construction of the second opening section.
       On April 1, the drill bit entered the well with a depth of 1573 meters. The speed of the drill bottom hole was completed quickly. The composite drilling time was about 5 minutes per meter and the drill reached a depth of 2184 meters. Before drilling, the composite drilling time was 5-6 meters / hour, the single drill bit completed 611 meters, the average mechanical drilling speed was 8.37 meters / hour, and penetrated through the formations of Maokou Formation, Qixia Formation and Liangshan Formation.
       After the preliminary experiment and the field application comparison of the three wells on the Jiaoye 182 platform, it was shown that the Φ311.1 six-blade drill bit produced by Zhongyuan Pipe Fittings is completely comparable to the drill bit produced by the international company. 1%. Compared with some domestic manufacturers, the effect is more obvious. The company's chief expert Wei Fengyong said that the application of this technology can also effectively save costs. In the next step, they will promote the diamond bit technology throughout the country, with a view to achieving full localization of diamond bit technology at an early date.
       Nano-diamond drills have super impact resistance and wear resistance, and are not easy to collapse and wear during drilling, and the service life is more than twice that of ordinary diamond drills. At present, nano drill bits have been used in drilling operations in many areas, all of which have shown excellent performance. Especially in oil and gas drilling in Dongpu old area, Guaizihu exploration area in Inner Mongolia, Tahe Oilfield in Xinjiang, southwest area, etc., the highest drilling speed record in the same stratum has been created. At the end of last year, the new nano-reinforced super-hard PDC composite bit was used for the first time in the Pulu 3 well in the Puguang gas field, which not only broke the previous construction routine of the formation, but also improved the efficiency of drilling efficiency. Nowadays, more and more oil engineering crews like to use nano drill bits produced by drill bit factories. Only last year, there were nearly 80 nano-bits made in China, which were sold in the drilling markets of Zhongyuan, Inner Mongolia and Sichuan.
       It is understood that the domestic diamond market has long relied on the international market. In recent years, domestic diamond drill bit technology has made significant progress, but there is still a big gap compared with Smith and other international companies. Zhongyuan Engineering Company set up a special technical research team to carry out research and research.