关键词：钻铤；厚壁钢管；防止弯曲力；钟摆效应；维护孔尺寸
摘 要：Drill collars are an essential part of the drill string. They form the lowest component of the drill string. Drill collars are heavy, thick-walled steel pipes with threaded connections at both ends. The end with an external thread is known as the male end, whereas the end with an internal thread is known as the female end. The basic purpose of a drill collar is to provide the necessary weight for drilling purposes. Drill collars are machined out of solid steel bars as per API specifications. They are manufactured from standard steel (usually plain carbon steel) or a non-magnetic alloy of steel and copper or other non-magnetic alloys. The bars of solid steel are bored from one end to the other to provide passage for drilling fluids. There are usually two types of drill collar: slick and spiral. Standard drill collars are about 9 meters in length. Drill collars are characterized by high tensile strength and fatigue resistance. The various uses of drill collars are.
目 录：

01. Executive Summary

02. List of Abbreviations

03. Scope of the Report

03.1 Market Overview

03.2 Product Offerings

04. Market Research Methodology

04.1 Market Research Process

04.2 Research Methodology

05. Introduction

06. Overview of Oil and Gas Market in Middle

East

07. Market Landscape

07.1 Market Overview

07.2 Drill Collar Manufacturing Process

07.3 Market Size and Forecast

07.4 Five Forces Analysis

08. Market Segmentation by Raw Material

08.1 Drill Collar Market in Middle East by Raw Material

2014

08.2 Drill Collar Market in Middle East by Raw Material

2019

08.3 Drill Collar Market in Middle East by Raw Material

2014-2019

08.4 Drill Collar Market in Middle East by Standard

Steel Drill Collar

Market Size and Forecast

08.5 Drill Collar Market in Middle East by Nonmagnetic

Alloy Drill Collar

Market Size and Forecast

09. Market Segmentation by Design

09.1 Drill Collar Market in Middle East by Design 2014

09.2 Drill Collar Market in Middle East by Design 2019

09.3 Drill Collar Market in Middle East by Design 2014-

2019

09.4 Drill Collar Market in Middle East by Slick Drill

Collar

Market Size and Forecast

09.5 Drill Collar Market in Middle East by Spiral Drill

Collar

Market Size and Forecast

10. Key Leading Countries

10.1 Drill Collar Market in Middle East by Key Countries

10.2 Drill Collar Market in Middle East by Key Countries

2014-2019

10.3 Saudi Arabia

Market Size and Forecast

10.4 Iran

Market Size and Forecast

10.5 Iraq

Market Size and Forecast

10.6 UAE

Market Size and Forecast

10.7 Kuwait

Market Size and Forecast

10.8 Others

Market Size and Forecast

11. Buying Criteria

12. Market Growth Drivers

13. Drivers and their Impact

14. Market Challenges

15. Impact of Drivers and Challenges

16. Market Trends

17. Trends and their Impact

18. Vendor Landscape

18.1 Competitive Scenario

Key News

Mergers and Acquisitions

18.2 Other Prominent Vendors

19. Key Vendor Analysis

19.1 Halliburton

Key Facts

Business Overview

Business Segmentation by Revenue

Geographical Segmentation by Revenue

Business Strategy

Key Information

SWOT Analysis

19.2 Hunting

Key Facts

Business Overview

Business Segmentation by Revenue 2014

Business Segmentation by Revenue 2013 and 2014

Geographical Segmentation by Revenue 2014

Business Strategy

Recent Developments

SWOT Analysis

19.3 Schlumberger

Key Facts

Business Overview

Business Segmentation by Revenue

Geographical Segmentation by Revenue

Business Strategy

Key Information

SWOT Analysis

19.4 Tasman Oil Tools

Key Facts

Business Overview

SWOT Analysis

19.5 Vallourec

Key Facts

Business Overview

Business Segmentation by Revenue 2013

Business Segmentation by Revenue 2012 and 2013

Geographical Segmentation by Revenue 2013

Business Strategy

Recent Developments

SWOT Analysis

19.6 Weatherford International

Key facts

Business Overview

Product Segmentation by Revenue

Geographical Segmentation by Revenue

Business Strategy

Key Developments

SWOT Analysis

20. Other Reports in this Series