第38卷第3期 2016年5月
石
油
钻
采工
艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2016)03032205
DOI: 10.13639/j.odpt.2016.03.005
Vol. 38 No. 3
May2016
纳米二氧化硅复合早强剂的开发与性能评价
侯献海’步玉环郭胜来’罗勇’王雪英
1.中国石油大学（华东)石油工程学院；2.中海石油（中国)有限公司上海分公司；3.中原油田供水管理处
引用格式：误献海，步玉环，部胜来，罗剪，王雪英.钠来二氧化硅复合早强剂的开发与性能评价[J】，石油钻采工艺， 2016,38(3);: 322326
摘要：针对深水固并中油井水况早期强度增长缓慢的间题，考察了纳来二氧化硅低温早强特性，并遇过遇进式叠加优化获得一种纳来二氧化硅复合早强制NS-4。模拟深水固并的温度、压力条件，测试了该早强制对油井水泥稠化性能、静胶凝强度和抗压强度的影响。研究结果表明：纳来二氧化硅复合早强剂组成方案为0.8%纳米二氧化硅（质量分数，下同）+2%硫酸钠 +0.05%三乙醇胺+0.2%铝酸钠，掺量为水泥的3.05%；15C、10MPa条件下掺入该早强制的水泥浆稠化时间为236min，其中凋化过淀时间为34min；30℃、15MPa条件下静胶凝强度0~576Pa发展时间为180min，其中较整过渡时为48min；在4℃、 15℃、30℃下，加入该早强剂的水泥石24h抗压强度分别是纯G水况的9倍、4.7倍、2.4倍。该平强剂优异的低温早强、防气窜性能，有助于解决深水固井面临的低温、浅层水/气流动的难题
关键词：深水固井；纳米二氧化硅；复合早强剂；油井水泥；防气审
中图分类号：TE256
文献标识码：A
Development and performance evaluation of nano-SiO, complex accelerator
HOU Xianhai', BU Yuhuan', GUO Shenglai', LUO Yong , WANG Xueying
1. School of Peroleum Engineering, China Uriversity of Petrolerm (Easr China), Qingdao, Shandong 266580, China; 2. CVOOC (China) Shanghaa
Company, Shanghiai 200030, China; 3. Water Supply Ofice of SINOPEC Zhrongywan Oifield Company, Prgang, He'nan 457001, China
Citation: HOU Xianhai, BU Yuhuan, GUO Shenglai, LUO Yong, WANG Xueying. Development and perfomance evaluation of(
eaoad so sa as eaaedaa e strength behavior of nano-SiO, was investigated. By means of progressive superposition optimization, a nanoSiO, complex accelera-tor NS-4 was obtained. The effects of this accelerator on the thickening performance, static gel strength and compressive strength were analyzed under simulated temperature and pressure conditions in deepwater cementing. The nano-SiO, complex accelerator composed of 0.8% nano-SiO, (mass fraction, the same below) + 2% sodium sulfate + 0.05% triethanolamine + 0.2% sodium aluminate is adopted, with its volume added being 3.05% of the cement volume. The test results show that, under the conditions of 15 °C and 10 MPa, the thick-ening time of cement slurry mixed with this accelerator is 236 min, including 34 min thickening transition time. Under the conditions of 30°C and 15 MPa, the development time of 0-576 Pa static gel strength is 180 min, including 48 min gelling transition time. Under the conditions of 4°C, 15°C and 30°C, the 24 h compressive strength of hardened cement mixed with this accelerator is 9 times, 4.7 times and 2.4 times the pure G cement respectively. The excellent cryogenic early strength and gas blocking performance of the accelerator contribute to solving such problems as low temperature and superficial water/gas flow confronted in deepwater cementing
Key words: deepwater cementing; nano-SiO,; complex accelerator; oil well cement; gas breakthrough prevention
基金项目：国家重点基融研究发展计划（973计划）“净泽深求油气安金高效钻完并基融研究"项目（编号：2015CB251202)；教育部长
801
第一作者：侯缺海（1992-),在读硕士研究生，从事固并求泥浆与外加刺方向研究。通讯地址：(266580)山东省青岛市黄岛区长江西路66
号中国石油大学（华东）工件楼E唐2020宝。E-mail；hxhupe@163.com
步五环（1966-)，教校，硕士生导师，主要队事油气并工程、油气井流体力学、固完并工程领域的教学与科研工作。通试地让：
通讯作者：
(266580)山东省青岛市黄岛区长江西路66号中国石油大学（华东）,工科楼B座320宝。E-mail；buyuhuan@163.com
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