Cementing is an important link in the process of well construction of oil and gas wells, and it is a relatively independent system engineering connecting drilling and oil production engineering. The cementing quality is related to the life of oil and gas wells and the production efficiency of oil and gas reservoirs. However, cementing operation is a hidden underground operation project involving a wide range of risks, so the safety construction and cementing quality are very important.

Therefore, domestic and foreign petroleum engineering and technical service companies have stepped up the research of cementing technology, especially after the blowout, fire and explosion accident of BP offshore drilling platform in the Gulf of Mexico, the particularity and importance of cementing operation have been paid more attention. At present, the cementing technology in foreign countries is generally developing in the direction of technical support, serialization, personalization and integration; the cementing quality is developing in the direction of ensuring long-term sealing quality and wellbore sealing; the cementing management and construction are developing in the direction of strengthening process control and management refinement.

With BJ service company of the United States as the representative, some companies put forward the concept of "long-term cementing", that is to achieve effective sealing in the whole well life cycle, so as to provide technical support for the long-term safety production of oil and gas wells. In order to improve the long-term sealing quality, BJ service company mainly starts from three aspects: one is to realize the seriation of cement slurry system and carry out the cement slurry formula design to meet the sealing requirements under different conditions; the other is to carry out the individualized cementing design according to the geological, drilling characteristics and down hole complex conditions; the third is to strengthen the site preparation and refine the site cementing construction; in recent years, BJ service company Lenbecher company promotes "integrated" cementing service and uses cementing optimization software to design cementing to improve the pertinence of the design; develops a series of supporting cement slurry systems to meet the requirements of cementing under different conditions; realizes the concept transformation of cementing management from extensive to refined process management, pays attention to details and strengthens process management.

According to the development trend of cementing operations at home and abroad, a series of matching cementing materials and slurry systems have been basically formed through in-depth and continuous research in recent years. Important progress has been made in ultra-high density and ultra-low density slurry, salt resistant latex cement, and ductile cement, which better meet the needs of cementing in complex situations and effectively support the stable production of oil and gas.