精细动态控压固井技术在顺南区块的应用研究

塔中顺南区块存在油气活跃、后效严重、压力窗口窄、井深、井底温度高、地层承压能力低等固井技术难点。为了解决顺南区块固井作业存在的问题，开展了精细动态控压固井技术现场实践，顺利完成了该区固井作业。该技术通过有效控制井口、井底压力，防止井漏、溢流的发生，在保证施工安全的同时提高了固井质量。目前已在顺南6井、顺南7井成功应用，效果显著。该技术对压力敏感性地层固井有推广应用前景。 

Application of Precise Dynamic Pressure Control Well Cementing Technology in Block Shunnan

Well cementing operations in Block Shunnan has been encountering technical difficulties such as active oil and gas, severe gas cut, narrow density window, deep well, high bottom hole temperature, and low pressure bearing etc. To deal with these difficulties, a precise dynamic pressure control well cementing technology was applied in Shunnan, and well cementing was successfully performed. In applying this technology, the pressures at the wellhead and the bottom were carefully controlled to prevent lost circulation and well kick from occurring. The well cementing job was safely performed while the job quality was enhanced. This technology has been successfully applied in cementing the well Shunnan-6 and the well Shunnan-7. This technology is of great importance in cementing wells penetrating pressure-sensitive formations, and is worth applying widely.