CAJ | 학술논문

防止深水油气井测试事故发生的关键之一，就是必须进行安全评估与控制，提高测试工艺水平。我国南海深水海域有其特殊的区域环境特点：油田离岸距离远、夏季台风频繁、冬季季风不断、存在沙坡、沙脊和内波流等，而且油气藏特性复杂，给深水井测试带来更多的挑战。结合南海深水井测试实践，对深水井测试的主要潜在风险进行了分析，认为存在测试管柱及工具失效、地面流程失效、天然气水合物堵塞、储层出砂、台风影响等风险。针对这些风险提出了具体的防范措施。
방지심수유기정측시사고발생적관건지일，취시필수진행안전평고여공제，제고측시공예수평。아국남해심수해역유기특수적구역배경특점：유전리안거리원、하계태풍빈번、동계계풍불단、존재사파、사척화내파류등，이차유기장특성복잡，급심수정측시대래경다적도전。결합남해심수정측시실천，대심수정측시적주요잠재풍험진행료분석，인위존재측시관주급공구실효、지면류정실효、천연기수합물도새、저층출사、태풍영향등풍험。침대저사풍험제출료구체적방범조시。
Due to the high dififculties, high investment, and high risks in deepwater oil and gas well testing, major safety problems can occur easily. A key to prevent accidents is to conduct safety assessment and control on deepwater testing and to improve the test-ing technology. The deepwater of the South China Sea has some special environmental features: long distancce from offshore, frequent typhoons in summer and constant monsoons in winter, and the prsence of sandy slopes, sandy ridges and internal waves, which, coupled with the complex properties of oil and gas reserves, bring more challenges to deepwater well testing. In combination with deepwater well testing practice in the South China Sea, this paper analyzes the main potential risks in deepwater well testing and concludes that there are risks of failure in testing string and tools and ground processes, gas hydrate blockage, reservoir stratum sanding, and typhoon impacts. Speciifc precautions are also proposed in response to these risks in the paper.