第39参第1期 2017年1月
石油钻采工艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2017)01006105
DOI:10.13639/j.odpt.2017.01.012
平顶山盐穴储气库固井技术
张幸1.2覃毅”李海伟’兰天
Vol. 39 No. 1 Jan.2017
1.中国石油勘探开发研究院；2.中国石油西气东输管道公司储气库项目部；3.资海钻探工程有限公司第一国并分公
弓用格式：张季，章股，季海伟，兰天，平顶山盐穴错气库固并技术【J」-石油钻采工艺，2017,391)：61-65
摘要：平顶山盐穴储气库含盐地层厚度大，目的层埋藏深，泥券类层多，固并难度大、要求高。在分新前期固并施工过程中存在的易漏失、胶结质量差、未退出并口等难题的基础上，通过开展有针对性的盐水水泥蒙配方优选、并眼准备、前置减优化钻井和下套管施工等综合性技术措施的研究，保障了围井顺利施工和固并质量。PT1并是平顶山盐穴储气库的一口探并，该并生产套管一次封固井段长，并眼尺寸大，并简条件复杂，通过采用综合性能好的抗盐水泥浆体系，避免了固井期间漏失问题的发生，解决了平顶山盐穴储气库固井难题，为该地区后续的固井施工提供了宝贵经验。
关键词：固井；盐穴储气库；盐水水泥浆；氢气检测；顶替效率；现场试验
中图分类号：TE256
文献标识码：B
Cementing technologysuitableforPingdingshan salt caverngas storage
ZHANG Xing", QIN Yf, LI Haiwei , LAN Tian
1. CVPC Research Institrfe of Petrolerm Explonation & Development, Beijing 100083, China;
2. Gas Stonage Projecr Deparfment, CNPC West-to-East Gas Pipeline Compay, zherjiang 212100, Jiangsr, China 3. No.1 cementing branch, Bohai Drilling and Exploration Engineering Co. Litd., Rengiu 062552, Hebei, China
Citation: ZHANG Xing, QIN Yi, LI Haiwei, LAN Tian. Cementing technology suitable for Pingdingshan salt cavern gas storage [J] . Oil Drilling & Production Technology, 2017, 39(1): 61-65
Abstract: Pingdingshan salt cavern gas storage is characterized by thick salt formations, deep targets and multiple mudstone in-terbeds, so its cementing job is difficult and shall meet more requirements. The difficulties that occurred during the previous cementing were analyzed, such as circulation loss, poor cementation quality and no slurry returning to the wellhead. Then, a series of comprehen-sive measures were specifically studied to guarantee the smooth cementing and cementing quality, including brine cement slurry formula optimization, borehole preparation, prepad fluid optimization, well drilling and casing running. Well PT1 is an exploration well in Ping dingshan salt cavem gas storage. In this well, the single-stage cementing section of production casing is long, borehole size is large and wellbore conditions are complex. Its circulation loss during cementing is avoided by adopting salt-resisting cement slurry system whose comprehensive performance is good and adjusting and circulating the performance of drilling fluids sufficiently. And consequently, thc cementing difficulties of Pingdingshan salt cavern gas storage are solved. The research results provide the valuable experience for thc subsequent cementing operation in this area
Key words: cementing; salt cavern gas storage; saline cement slurry; helium detection; displacement efficiency; field test
平项山盐穴储气库位于河南省平顶山市南部叶县境内，是目前国内计划建设埋藏最深的盐穴储气库，设计并深近2000m，含盐层系赋存于舞阳箕状凹陷内，为一套中、新生界的碎屑化学岩系，属下第
三系核桃园组二段上部和核一段。舞阳凹陷内核桃园组盐层厚、泥岩夹层多，地层倾角较大，夹层总厚度占30%~40%，且各夹层厚度不等，最大可以达到5m以上，含盐层系最厚达1000m，优选含盐质
第一作者：张幸（1986-),2010年毕业于中国石沟大学（华东）石油工程专业，获学士学位，中国石勘探开发研究院在块硕士研究生，主
要从事盐穴储气库建设的相关工作，工程师。E-mail；cqkzhangxing@petrochina.com.cn
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