旋冲钻井在塔河工区超深井段的应用

Application of rotary percussion drilling on the super deep section in Tahe Field

索忠伟 王甲昌 张海平 李广国 张仁龙 敬辉阳

SUO Zhongwei WANG Jiachang ZHANG Haiping LI Guangguo ZHANG Renlong JING Huiyang

中国石油化工股份有限公司石油工程技术研究院，北京　100101 华东石油局钻井公司，江苏镇江　 212003 中国石油天然气管道局天津设计院，天津　300457

SINOPEC Petroleum Engineering and Technology Research Institute, Beijing 100101, China Drilling Company, EastChina Petroleum Administration Bureau, Zhenjiang 212003, China Tianjin Design Research Institute, CNPC Pipe Administration Bureau, Tanggu 300457, China

为提高新疆塔河工区深部地层机械钻速，在该区块试验应用了旋冲钻井技术。针对新疆塔河工区深部地层岩性特点和钻头选型情况，优选出旋冲钻井匹配钻头，优化并确定出射流冲击器结构性能参数。使用改进后射流冲击器首先在塔河工区S116-3井中配合PDC钻头在超深井段进行探索性应用，验证射流冲击器+PDC钻头的可行性，应用井深达6 086 m。随之，在TP324井进行了长井段现场应用，实现了液动射流冲击器与PDC钻头配合实质性应用。S116-3井应用井段：5 998.41~6 086 m，TP324井应用井段为6 151.65~6 912 m，总进尺847.94 m，总纯钻时间314.02，机械钻速同比提高32%~45%。S116-3、TP324井应用结果验证了该技术在深井超深井的提速效果及可靠性，为塔河工区深部地层探索了新的途径。

To improve the Rate Of Penetration(ROP) for drilling deep formations in Tahe Field, rotary percussion drilling technique was tested. According to the lithologic features and drilling bit type selection in the region, the fixed bit was selected, and the structural properties of jet impactor were optimized and fixed. The improved jet impactor was firstly put into usage in the super deep section of Well S116-3, combined with PDC bit, proving the feasibility of jet impactor + PDC bit, and the depth reached 6 086 m. As following, it was field applied on Well TP324, which realized the real application of the combination of jet impactor and PDC bit. As a result, the application depth range of Well S116-3 was 5 998.41~6 086 m, and it was 6 151.65~6 912 m for Well TP324, so the total penetration was 848.16 m. The total net drilling period was 314.02, and the ROP was increased by 32%~45%. The application on the two wells proved the effect and reliability of the technique in deep and super deep wells. It supplied novel way to develop Tahe deep formation.