中国石油网消息：3月16日，浙江油田传来捷报，渝西大安区块深层页岩气重点井——大安1H31-3井圆满完成钻完井作业，凭借完钻井深8010米、水平段3700米的硬核指标，成功建成我国首口超长水平段深层页岩气水平井，一举刷新国内埋深大于3500米深层页岩气完钻井深最深、水平段最长两项核心纪录，为我国非常规油气高效开发树立了新标杆。

China Oil News: On March 16th, the Zhejiang Oilfield announced a significant success. In the Yuxi Dahan block, the key well - Dahan 1H31-3 - completed its drilling and well completion operations successfully. With a drilling depth of 8,010 meters and a horizontal section of 3,700 meters, this well has successfully established China's first ultra-long horizontal section deep shale gas horizontal well. It has broken through two core records in China - the deepest drilling depth of deep shale gas wells with a burial depth greater than 3,500 meters and the longest horizontal section.

该井核心施工指标亮眼：垂深4200米，地质靶体钻遇率高达94.17%，全井施工实现零安全事故，实际钻井周期仅为69.83天，较设计工期提前10.22天，同时创下浙江油田大安区块最短钻井周期纪录，标志着我国深层页岩气超长水平段钻井工程技术实现重大突破，推动行业核心技术从“跟跑”向“并跑”的加速跨越。

The core construction indicators of this well are impressive: the vertical depth is 4,200 meters, the drilling rate of the geological target body is as high as 94.17%, and there were no safety accidents throughout the well construction process. The actual drilling cycle was only 69.83 days, which was 10.22 days ahead of the designed schedule. At the same time, it set a new record for the shortest drilling cycle in the Dagaon block of Zhejiang Oilfield. This indicates that China has achieved a major breakthrough in the engineering technology of ultra-long horizontal sections for deep shale gas drilling, accelerating the leap from "following" to "parallel" in core technologies of the industry.

大安区块深层页岩气储层埋深超4000米，面临高温、高压、井轨精准控制难等世界级技术难题，是油气开发领域的“硬骨头”。

The deep shale gas reservoirs in the Dahan block are buried at a depth of over 4,000 meters. They are confronted with world-class technical challenges such as high temperatures, high pressure, and the difficulty in precisely controlling the well trajectory. They are regarded as "hard nuts" in the field of oil and gas development.

浙江油田锚定保障国家能源安全的核心使命，联合川庆钻探、海峡能源组建专业技术攻关团队，坚持地质工程一体化理念，系统突破轨迹精准控制、井筒高温降温、高效钻井、长水平段固井四大核心技术瓶颈，构建了深层页岩气高效开发3.0技术体系，实现了关键技术的原创性突破。

Zhejiang Oilfield has firmly established the core mission of ensuring national energy security. It has jointly formed a professional technical research team with Chuanqing Drilling and Haigai Energy. Adhering to the concept of integrated geological and engineering approaches, it has systematically overcome four major technical bottlenecks: precise trajectory control, cooling of the wellbore in high temperatures, efficient drilling, and cementing of long horizontal sections. It has constructed a 3.0 technology system for efficient development of deep shale gas and achieved original breakthroughs in key technologies.