The high-anti-squeeze special casing independently developed and produced by BAOGANG Co., Ltd. was successfully put into the well, and was widely praised by users for its excellent performance. This is also the highest steel grade new product in BAOGANG's series of anti-squeeze special casings that have achieved industrial application, adding another advantageous product to BAOGANG's non-standard petroleum special casing with independent intellectual property rights.

High-anti-squeeze casing is mainly used to develop salt-gypsum layer oil wells of about 5,000 meters. Because the salt-gypsum layer has extreme creep characteristics under high temperatures and high-pressure environments, ordinary casing makes it difficult to meet the stringent performance requirements in this complex environment. BAOGANG's high-anti-squeeze casing is a high-grade steel variety using rare earth micro-alloying. It has high strength and good toughness, and more importantly, it has excellent anti-squeeze performance, and the measured value is higher than the user's technical requirements.

After full communication with customers in technology, design, exploration, and other aspects in the early stage, the R&D center combined the advantages of BAOGANG's rare earth resources, applied clean steel smelting technology, high-precision hot rolling technology, narrow window heat treatment technology, etc., and successfully developed a high-resistance special casing suitable for salt-gypsum layers. After the cementing pressure test of this batch of casing, all parameters met the requirements, and the well team issued a qualified well test report, which was recognized and praised by customers. The company also specially dispatched professional technical service personnel for after-sales service to ensure the successful application of this batch of high-resistance casing down to the well.

BAOGANG's high-resistance special casing is the only product of the same type in the industry that uses rare earth elements in steel microalloying technology, which also makes it have a measured value of anti-squeeze that is higher than the user's technical requirements. In the next step, BAOGANG will focus on cultivating new quality productivity, continue to develop various types of petroleum special casing products with better performance, give play to the advantages of "rare earth steel", and help BAOGANG's seamless pipe products to climb to stronger performance, wider fields, and higher quality.