摘要
港深15-18井是大港油田马东区块的重点开发井,完钻井深为4 405 m。该井φ139.7 mm生产套管固井存在目的层高温、高压油气活跃、易发生油气水窜、封固段长、易漏失等难点,对固井水泥浆的防气窜及综合性能要求较高,固井质量难以保证。针对油气水窜的固井难点,在大港油田首次应用大掺量耐高温胶乳水泥固井技术,胶乳掺量达到了水泥量的8%。大掺量胶乳水泥浆体系的实验和应用结果表明:该体系流变性好、失水量小、防气窜性能优越、顶部强度发展快,综合性能良好;其结合加重隔离液体系和配套固井工艺技术措施,解决了港深15-18井φ139.7 mm生产套管油气水窜等固井质量问题。
Well Gangshen 15-18,one of the key exploratory wells drilled in Block Madong,is a deep well having a total depth of4,405 m.The 139.7 mm liner penetrated formations that have many problems such as high temperature,active oil and gas,oil/gas/water channeling,long cementing section and lost circulation,presenting rigorous requirement to cementing slurry as to the anti-gaschanneling property.To solve these problems,latex content in the cementing slurry is increased to 8%.Laboratory study and field application show that this high latex content cement has good rheology,low filtration rate,superior anti-gas-channeling property,and fast strength development of the top cement slurry.Combined with weighted spacers and cementing technology,this cementing slurry successfully solves the bad cementing job quality problem of the 139.7 mm hole section of the well Gangshen 15-18.
出处
《钻井液与完井液》
CAS
北大核心
2014年第2期59-61,99-100,共3页
Drilling Fluid & Completion Fluid
关键词
固井
胶乳水泥
防窜
深井
高温
Cementing
Latex cement slurry
Anti-channeling
Deep well
High temperature
