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固井是钻井过程中的重要作业。随着新的钻井技术的逐步发展,天然气、煤层气、地热井等资源的不断的受到重视,环保要求的不断提高、深层的能源和储层的大量开发,给我国固井工程带来了新的挑战,针对现有固井新问题,本文通过对我国长封固段固井、常规分级固井技术以及筛管完井工艺的不足,研究开发了免钻固井技术,提高了固井时效、节约了钻井成本。
Cementing is an important operation in the drilling process. With the gradual development of new drilling technology, natural gas, CBM, geothermal well and other resources continue to receive attention, environmental protection requirements continue to increase, the deep development of energy and reservoirs, China’s cementing project has brought a new Aiming at the new problems of cementing, the paper studied and developed the drilling-free cementing technology and improved the cementing time-lapse by aiming at the shortages of cementing in Changzhu section, conventional cementing stage and screen completion well in our country. , Saving drilling costs.