1.7

       垮塌卡钻风险因素研究

 

                                                                                                     

 

 

....................................................................................................

 

 44

   

1.7.2

 

     井塌风险因素识别

 

                                                                                                  

 

 

.................................................................................................

 

 44

   

1.7.2

 

     井塌风险因素分析研究

 

                                                                                          

 

 

.........................................................................................

 

 48

   

1.7.3

 

     井漏引起的井眼坍塌

 

                                                                                              

 

 

.............................................................................................

 

 52

   

1.7.4

 

     波动压力计算分析

 

                                                                                                  

 

 

.................................................................................................

 

 64

   

1.8

       泥包卡钻风险因素研究

 

                                                                                                     

 

 

....................................................................................................

 

 68

   

1.8.1

 

     泥包的产生

 

                                                                                                              

 

 

.............................................................................................................

 

 68

   

1.8.2

 

     泥包风险因素识别

 

                                                                                                  

 

 

.................................................................................................

 

 69

   

1.8.3

 

     钻头泥包的判断方法

 

                                                                                              

 

 

.............................................................................................

 

 70

   

2

      钻具失效风险因素研究

 

                                           

 

 

......................................

 

 70

   

2.1

       钻具的主要失效类型及特点

 

                                                                                             

 

 

............................................................................................

 

 70

   

2.2

       

 

钻具失效的主要影响因素

 

                                                                                               

 

 

..............................................................................................

 

 71

   

2.3

       钻具刺漏风险因素研究

 

                                                                                                     

 

 

....................................................................................................

 

 74

   

2.3.1

 

     引起刺漏因素分析

 

                                                                                                  

 

 

.................................................................................................

 

 74

   

2.3.2

 

     刺漏风险识别

 

                                                                                                          

 

 

.........................................................................................................

 

 74

   

2.3.3

 

     钻具刺漏判别和预报

 

                                                                                              

 

 

.............................................................................................

 

 76

   

2.4

       钻具接头粘扣风险因素研究

 

                                                                                             

 

 

............................................................................................

 

 76

   

2.4.1

 

     钻具接头粘扣原因分析

 

                                                                                          

 

 

.........................................................................................

 

 76

   

2.4.2

 

     接头粘扣风险因素分析

 

                                                                                          

 

 

.........................................................................................

 

 77

   

2.5

       掉钻具风险因素研究

 

                                                                                                         

 

 

........................................................................................................

 

 78

   

3

      各种异常情况定性描述

 

                                           

 

 

......................................

 

 79

   

3.1

       钻具刺漏

 

                                                                                                                              

 

 

.............................................................................................................................

 

 79

   

3.2

       掉钻具

 

                                                                                                                                  

 

 

.................................................................................................................................

 

 79

   

3.3

       卡钻、遇阻

 

                                                                                                                          

 

 

.........................................................................................................................

 

 79

   

3.4

       井漏

 

                                                                                                                                      

 

 

.....................................................................................................................................

 

 79

   

3.5

       井壁坍塌

 

                                                                                                                              

 

 

.............................................................................................................................

 

 79

   

3.6

       盐侵

 

                                                                                                                                      

 

 

.....................................................................................................................................

 

 80

   

3.7

       油（气）侵

 

                                                                                                                          

 

 

.........................................................................................................................

 

 80

   

3.8

       钻遇粘土层

 

                                                                                                                          

 

 

.........................................................................................................................

 

 80

   

3.9

       关于异常情况相关参数的定量化

 

                                                                                    

 

 

...................................................................................

 

 80