提出了油气井临界井底流压和安全产量的概念，对科学地管理油气井有着一定的现实意义。
The paper presents the conception of bottom-hole critical flowing pressure and secure production of oil well. It is of practical significance for management of oil well.
这起事故的直接原因是未采用几何临界安全设备及工人的违规操作，而根本原因在于缺乏有效的技术管理。
The direct cause of the accident is the use of geometrically unsafe process equipment and personnel violation. However, the root cause is lack of efficient technical management.
这起事故的直接原因是未采用几何临界安全设备及工人的违规操作，而根本原因在于缺乏有效的技术管理。
The direct cause of the accident is the use of geometrically unsafe process equipment and personnel violation. However, the root cause is lack of efficient technical management. Therefor…
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