英语翻译IADC Well Classification System for Underbalanced Operat

IADC Well Classification System for Underbalanced Operations and Managed Pressure Drilling
IADC （世界钻井承包商协会）对欠平衡作业与控制压力钻井的油井分类体系
The purpose of the IADC Well Classification System is to describe the overall risk,application category and fluid system used in underbalanced operations (UBO) and managed pressure drilling (MPD).Wells are classified according to:
IADC 油井分类体系的目的是描述用于欠平衡作业与控制压力钻井（MPD）的整体风险、应用范畴以及钻井液系统.油井按照如下分类：
.Risk Level (0 to 5)
.Application Category (A,B or C)
.Fluid System (1 to 5).
.风险等级（0 - 5）
.应用范畴（A、B 或 C）
.钻井液系统（1 - 5）
This classification system provides a framework for defining minimum equipment
requirements,specialized procedures,and safety management practices.For further
information refer to the IADC UBO HSE Planning Guidelines and other related documents.
本分类体系描述了确定最小设备用量、制定作业程序,以及安全管理实践所要求的基本框架.若有更详尽的要求,请参照 IADC UBO HSE 规划指南,与其他相关文件.
Risk Levels
风险等级描述
Generally,risk increases with operational complexity and potential well productivity.The
examples provided are for guidance only.
总的来说,风险随作业复杂系数与潜在油井生产力而提高,下面例举仅仅作为指南.
Level 0 – Performance enhancement only; no hydrocarbon containing zones.
0 等级 - 仅用于强化作业,不含烃（碳氢化合物）区域
.Air drilling for ROP enhancement
.空气钻井,适用于ROP 强化作业
Level 1 – Well incapable of natural flow to surface.Well is inherently stable and is a low level risk from a well control point of view.
1 等级 - 油井无天然流量至地面.油井基本稳定,根据井控估计,有低产风险
.Sub-normally pressured oil wells
.低压作业油井
Level 2 – Well is capable of natural flow to surface,but can be controlled using conventional well kill methods.Catastrophic equipment failure may have limited consequences.
2 等级 - 油井有天然流量至地面,但需要用常规压井作业才能得以控制.严重的设备的不足引起的故障可能限作业程序.
.Abnormally-pressured water zones
.非正常压力水区域
.Low flow rate oil or gas wells
.低流量油气井
.Depleted gas wells
.贫瘠气井
Level 3 – Geothermal and non-hydrocarbon bearing formations.Maximum anticipated shut-in pressure (MASP) is less than UBO/MPD equipment pressure rating.
3 等级 - 低热与无碳氢化合物地层.最大预期关闭压力（MASP）小于UBO/MPD设备的额定容量
.Includes geothermal wells with H2S present
.包括低热井,伴生H2S
Level 4 – Hydrocarbon bearing formation.Maximum anticipated shut-in pressure is less than UBO/MPD equipment operating pressure rating.Catastrophic equipment failure will likely have immediate serious consequences.
等级 4 - 碳氢化合物地层.最大预期关闭压力小于UBO/MPD设备的作业压力额定容量.严重的设备的不足引起的故障很有可能导致严重顺坏作业程序.
.High pressure and/or high flow potential reservoir
.高压和/或高流量的潜在油藏
.Sour oil and gas wells
.含硫油气井
.Offshore environments
.海洋环境
.Simultaneous drilling and production operations
.钻井与生产同步进行

国际钻井承包商协会完善的分类系统是为了解决负压操作和管理压力钻井的问题。国际钻井承包商协会完善的分类系统的目的可以描述为整体风险、应用范畴、流体系统负压操作（UBO）和管理压力钻井（MPD），其具体分类如下：
风险等级（0至5）
申请类别（A，B或C）
流体系统（1到5）
这个分类系统提供了一个框架，以用来明确：最低设备所需要求、专门的程序以及安全管理的做法。如需更...

本文分类系统IADC井钻井操作和管理的目的分类系统IADC好描述的整体风险、应用范畴和流体系统用于操作(UBO)和欠平衡钻井(MPD)管理。根据井进行了分类。
。风险水平(0 ~ 5)
。应用范畴(A,B和C)
。流体系统(1 - 5)。
该分类系统提供了一个框架,用于定义最小设备
要求,专业程序、安全管理措施。为进一步
信息参阅IADC UBO H...