CAJ | 학술논문

胜利油田垦东斜411井在射孔测试联作施工中发生异常起爆事故.通过地面跌落试验、数值仿真模拟计算和现场模拟试验对事故原因进行了诊断分析,查明了事故发生的原因.在施工管柱下放过程中突然下放管柱,形成的溜钻、镦钻引起波动压力,致使压力起爆器安全销钉提前剪断从而引起压力起爆器起爆是造成事故的主要原因.为避免类似事故的发生,提出了必须严格按规程施工,严格控制施工管柱的下放速度及优化射孔管串结构等改进措施.研究成果对提高射孔测试联作的施工安全及一次成功率具有实际意义.
성리유전은동사411정재사공측시련작시공중발생이상기폭사고.통과지면질락시험、수치방진모의계산화현장모의시험대사고원인진행료진단분석,사명료사고발생적원인.재시공관주하방과정중돌연하방관주,형성적류찬、대찬인기파동압력,치사압력기폭기안전소정제전전단종이인기압력기폭기기폭시조성사고적주요원인.위피면유사사고적발생,제출료필수엄격안규정시공,엄격공제시공관주적하방속도급우화사공관천결구등개진조시.연구성과대제고사공측시련작적시공안전급일차성공솔구유실제의의.
Abnormal initiation of the perforator occurred in Kendongxie 411 test well in Shengli Oilfield when the combined perforation tests were carried out. Through falling tests on the ground, numerical simulation calculation and field simulation tests, the causes of the perforator's abnormal initiation have been diagnosed and found out. Sudden falling and decentralization of the perforated strings caused slide-drilling and pier drilling, which generated the pressure fluctuation. And this fluctuation resulted in the cut of the safety pin in the initiator ahead of time. To a-void the similar initiation, we must obey strict perforator-running procedure, strictly control the perforated strings lowering speed and optimize structure of the strings. The improving measures given here ensure the perforating safety and one-pass perforating operation.