马深1井超深井钻井液技术

第38卷 第5期

2016年9 月石 油 钻 采 工 艺

OIL DRILLING & PRODUCTION TECHNOLOGY Vol. 38 No. 5Sept. 2016

文章编号：1000 – 7393（ 2016 ）

05– 0588– 06 DOI: 10.13639/j.odpt.2016.05.009马深1井超深井钻井液技术

罗人文　龙大清　王昆　范建国　吕佳　白晶

中石化中原石油工程有限公司西南钻井分公司

引用格式：罗人文，龙大清，王昆，范建国，吕佳，白晶. 马深1井超深井钻井液技术［J ］.石油钻采工艺，2016，38（5）：588-593.

摘要：马深1井是中石化部署在川东北地区的一口重点预探直井，完钻井深8 418 m 。本井四开、五开井段6 225.4~8418.0 m ，井底温度高达175 ℃，存在高温污染、泥页岩井壁失稳、酸根污染以及携砂问题，常规钻井液性能已无法满足正常施工要求。鉴于以上技术难点，通过材料优选、配方优化，成功研制了KCl 聚胺磺化钻井液体系和抗高温聚磺钻井液体系。经过体系验证：KCl 聚胺磺化钻井液具有良好的抑制能力；抗高温聚磺钻井液体系抗温达200 ℃。同时，在应用过程中形成了成熟的超深井钻井液处理技术。现场应用表明，四开平均井径扩大率3.1%，五开平均井径扩大率5.1%，有效地解决了该区块超深井钻井液技术难题，具有一定的推广价值。

关键词：钻井液；超深井；井壁稳定；抗高温；酸根污染；携砂性能

中图分类号：TE254 文献标识码：B

Drilling fluid for the super-deep Well Mashen-1

LUO Renwen, LONG Daqing, WANG Kun, FAN Jianguo, LYU Jia, BAI Jing

Southwest Drilling Company of Zhongyuan Petroleum Engineering Co. Ltd., SINOPEC , Nanchong , Sichuan 637001,China

Citation: LUO Renwen, LONG Daqing, WANG Kun, FAN Jianguo, LYU Jia, BAI Jing. Drilling fluid for the super-deep Well Mashen-1［J ］. Oil Drilling & Production Technology, 2016, 38(5): 588-593.

Abstract: Well Mashen-1 is a key vertical well deployed in northeastern Sichuan by SINOPEC for preliminary exploration. Boast-ing of a TD of 8 418 m, it is the deepest land well drilled in Asia. The fourth and fifth spud-in intervals were drilled at depth of 6 225.4 ~8 418 m with bottom-hole temperature up to 175 ℃. Accordingly, these intervals have problems related to high-temperature pollu-tion, sidewall instability in mud shale, acidic pollution and sand-carrying. Generally speaking, properties of conventional drilling fluid may not satisfy demands for routine operation. With consideration of these technical challenges, optimized materials and formula were deployed to develop KCl polyamine sulfonated drilling fluid system and temperature -resistant polysulfonate drilling fluid system. Test results indicate that KCl polyamine sulfonated drilling fluid has outstanding inhibition capabilities and can endure temperature up to 200 ℃. In addition, highly matured processing technologies for drilling fluids in super deep well have been developed. Field application results show that the well diameter has been enlarged by approximately 3.1% during the fourth spud-in and 5.1% in the fifth spud-in. Since these technologies can effectively cope with the challenges in drilling fluid for super deep wells, they can be promoted for more extensive application.

Key words: drilling fluid; super deep well; sidewall stability; temperature resistence; acidic pollution; sand-carrying capability 第一作者：罗人文（1988-），2011年毕业于成都理工大学，现从事钻井液技术研究及应用工作。通讯地址：（637001）四川南充市西南石油

大学南充校区西南钻井分公司。E-mail ：835592593@https://www.360docs.net/doc/0110359698.html,

马深1井是中石化部署在川东北通南巴地区的

一口重点预探井，完钻井深8 418 m 。该井深条件下，已无邻井资料参考，地层压力系数、岩性、井底温度、含硫化氢气体等数据无法准确预测，施工风险较大。

万方数据