地热作为一种清洁能源在中国能源转型方面扮演着重要角色，全国多地多个能源企业纷纷推进地热能开发项目，中国石油冀东油田公司在地热规模化开发方面走在全国前列，现已建成国内最大规模化地热供暖示范基地——曹妃甸新城地热供暖项目。地热供暖作为民生工程，降本提质增效是规模化效益开发的关键，建设周期及保障要求高，冀东油田通过地质工程一体化剖面设计、井身结构优化简化、固井设计优化、优快钻井配套工艺优化等一系列工艺技术措施实施，实现了批量地热井低成本优快钻井。研究结合冀东油田地热供暖项目实例，通过对成本及施工进度影响因素分析，施工问题剖析，采用对策及实施效果等多方面进行详细论述，为规模化地热开发中地热井降本优化设计提出了可供参考的解决方案。

Geothermal energy, as a clean energy source, plays an important role in China's energy transition. Energy companies across the country are actively promoting geothermal development projects. PetroChina Jidong Oilfield Company is a leader in the large-scale development of geothermal resources and has established the largest geothermal heating demonstration base in China, the Caofeidian new town geothermal heating project. As a key project for public welfare, geothermal heating requires cost reduction, quality improvement, and efficiency enhancement for large-scale development. With long construction cycles and stringent requirements, Jidong Oilfield has achieved low-cost, high-efficiency geothermal well drilling through various technological measures, including integrated geological engineering profile design, optimization and simplification of wellbore structure, cementing design optimization, and rapid drilling technology improvements. This research combines practical case studies from the Jidong Oilfield geothermal heating project, analyzing the factors influencing cost and construction progress, identifying construction issues, and detailing countermeasures and implementation effects. This paper offers valuable solutions for optimizing geothermal well design and cost reduction in large-scale geothermal development projects.