The first achievement of Jianghan Petroleum Project has reached the international advanced level

SINOPEC News Network News recently, a good news came from Jianghan Petroleum Engineering Company, the company’s scientific research project "Fuling Shale Gas Casing Annular Pressure Cause and Prevention Technology Research" formed the integrity of the shale gas wellbore.

As domestic shale gas development gradually develops towards deep and long horizontal sections, shale gas well bores will withstand higher construction pressures and higher frequency alternating stress impacts, and the quality of well bore sealing will also face more severe tests.

After 5 years of painstaking research, the company's scientific research personnel independently developed and formed a cement slurry system with low elastic modulus, strong durability and resistance to high alternating loads, and a self-responsive active self-healing cement slurry system that combines enveloping and permeable crystallization, etc.

Up to now, the results of this project have been used in Fuling, Yichang and other blocks cumulatively for nearly 300 well times, creating an output value of more than 200 million yuan and forming large-scale applications.