适用于海上油井堵水的稳砂剂室内实验研究
Laboratory experimental study of sand control agent suitable for offshore oil well after water plugging
陈增辉 1彭立 1吴慎渠 1王锦林 1石端胜1
作者信息
- 1. 中海油能源发展股份有限公司工程技术分公司,天津 300452
- 折叠
摘要
针对海上油井堵水作业后生产期间可能出砂的风险,研制了一种与堵水作业相配合的生物型稳砂剂(稳砂剂ZJ),并从抗压强度、渗透率保持率、耐冲刷性、有效期和可注入性五个方面进行室内实验测定及评价.室内实验结果表明该稳砂剂质量分数10%及以上抗压强度均大于6.4 MPa,高于行业标准规定的抗压强度需大于4 MPa,岩心渗透率保持率均大于87%,具有一定的耐冲砂能力,有效期长,同时该稳砂剂与堵水体系配合注入后,注入压力上升较小,其可注入性较强.该稳砂剂应用于渤海Q油田堵水作业,取得了良好的试验效果.
Abstract
To address the risk of sand production during the production period after water shutoff operations in offshore wells,a biological sand consolidation agent(ZJ)was developed to work in conjunction with water shutoff treatments.Laboratory tests and evaluations were conducted on five aspects,namely,compressive strength,permeability retention,erosion resistance,effective period,and injectability.The results showed that with the concentration of sand consolidation agent at 10%and above,the compressive strength is greater than 6.4 MPa,higher than the industry standard requirement of 4 MPa.The core permeability retention rate is greater than 87%,indicating a certain resistance to sand erosion and a long validity period.Meanwhile,when injected using the water shutoff system,the sand consolidation agent demonstrated strong injectability and only experienced a minimal increase in injection pressure.The application of this sand consolidation agent in water shutoff operations in the Bohai Q Oilfield has achieved excellent test results.
关键词
化学防砂/堵水/稳砂剂/性能评价Key words
chemical sand control/water plugging/sand consolidation agent/performance evaluation引用本文复制引用
基金项目
中海油能源发展工程技术科技项目(GCJSXMHT-2218)
出版年
2024
NETL
NSTL
万方数据