Study and Application of a Bactericide for Seawater Drilling Fluid Used in Directional Drilling in Bangladesh
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摘要: 针对孟加拉亚热带雨林气候常年高温情况,提出了孟加拉定向钻海水泥浆体系面临的问题和性能要求。针对孟加拉定向钻海水泥浆体系(海水+6%抗盐膨润土A1/B1/E1),优选研制了复合杀菌剂HCA101。该杀菌剂与体系配伍性好,添加0.1%杀菌剂的定向钻海水泥浆体系高速搅拌不起泡,在35℃下发酵时间大于10 d,满足现场泥浆体系发酵控制要求。该杀菌剂首次在孟加拉单点系泊项目中应用,取得了良好的施工效果,连续施工20 d后泥浆性能仍很稳定,未出现高温发酵现象,值得在国内外海上和类似孟加拉气候的定向钻海水泥浆体系中推广应用。Abstract: Oil well drilling in the subtropic rain forest climate in Bangladesh is facing high temperature environment through the whole year. To prevent the negative effects of high temperature on the performance of drilling fluid, a compound bactericide HCA101 was selected to treat the seawater drilling fluid (seawater + 6% salt clay A1/B1/E1) for directional drilling. HCA101 is compatible very well with the drilling fluid; treatment of the drilling fluid with 0.5% HCA101 does not cause the mud to foam when agitating at high speeds. Time for the HCA101 treated mud to ferment is longer than 10 d, satisfying the needs of fermentation control in field application. HCA101 was first used in March of 2019 in a single-point mooring project in Bangladesh with good operational results; the mud properties were stable after successively 20 d of operation, no fermentation at high temperatures was found. This bactericide is worth spreading in operation with seawater drilling fluids in an environment that is similar to that in Bangladesh.
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Key words:
- Directional drilling /
- Seawater drilling fluid /
- High temperature /
- Ferment /
- Bactericide /
- Bangladesh
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[1] 吕旭鹏,刘艳辉,何银,等.海上定向钻穿越中的泥浆工艺浅析[J].内蒙古石油化工, 2016(6):59-60. LYV Xupeng, LIU Yanhui, HE Yin, et al.Concise analysis of seadirectional crossing drilling mud technology[J]. Inner Mongolia Petrochemical, 2016(6):59-60. [2] 周亮.非开挖泥浆处理剂的应用及技术浅析[J].城市建设, 2010(10):408-409. ZHOU Liang.The application of trenchless drilling fluid treatment agent and technology is analysed[J].Urban construction, 2010(10):408-409. [3] 张树德,吕旭鹏,吴益泉,等.海上定向钻穿越泥浆体系研究[J].地质科技情报, 2016, 35(6):218-221.ZHANG Shude, LYV Xupeng, WU Yiquan, et al. Drilling mud system for directional crossing drilling under the seabed seafloor[J]. Geological Science and Technology Intelligence, 2016, 35(6):218-221. [4] 胡建平,董教社,冯培蕾,等.聚合物海水泥浆的研制[J].探矿工程, 2012, 39(12):29-31.HU Jianping, DONG Jiaoshe, FENG Peilei, et al. Development of polymer sea cement slurry[J]. Prospecting works, 2012, 39(12):29-31. [5] 孙晓娜,李勇萍,罗敏,等.浅谈海水泥浆及其与淡水泥浆的区别[J].施工技术, 2014(13):68. SUN Xiaona, LI Yongping, LUO Min, et al. Concisediscussion about sea cement mud and its difference from freshwater mud[J]. Construction technology, 2014(13):68. [6] 严丽蓓.水平定向钻穿越中的泥浆问题[C]//2010年非开挖技术会议论文集. 2010, 1:79-80. YAN Libei.Mud problems in horizontal directional drilling[C]//proceedings of 2010trenchless technology conference. 2010, 1:79-80. [7] 陈雪华,康新生,金键,等.长江定向钻穿越的泥浆控制[C]//2003年非开挖技术会议论文专辑, 2003:68-70. CHEN Xuehua,KANG Xinsheng, JIN Jian, et al.Mud control by directional drilling across the Yangtze river[C]//trenchless technology conference paper, 2003, 2003:68-70. [8] 徐新,耿志宏.非开挖水平定向钻进施工钻井液研究及工程应用[J].能源技术与管理, 2010(3):119-121. XU Xin, GENG Zhihong.Research and engineering application of drilling fluid for trenchless horizontal directional drilling[J].Energy technology and management, 2010(3):119-121. [9] 幸晶晶,马立安,余维初.一株磺化沥青降解菌的筛选鉴定及降解特性研究[J].钻井液与完井液, 2018, 35(6):42-48.XING Jingjing, MA Li'an, YU Weichu. Screening, determination and study on the degradation property of a sulfonated asphalt degrading bacteria[J]. Drilling Fluid&Completion Fluid, 2018, 35(6):42-48. [10] 宋淑芬,马立安,胡传炯,等.一株磺化钻井液降解菌的筛选鉴定及其降解特性[J].石油钻采工艺, 2018, 40(5):589-595.SONG Shufen, MA Li'an, HU Chuanjiong, et al. Screening, evaluation and degradation property of the degrading bacteria suitable for sulphonated drilling fluid[J]. Oil Drilling&Production Technology, 2018, 40(5):589-595.
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