摘要
根据深井、超深井用射孔枪技术特点对合金化技术和制造工艺进行优化,开发出具有优异强韧性的BG155P超高强度高韧性射孔枪管。检测BG155P超高强度高韧性射孔枪管的各项力学性能,并进行射孔试验;采用光学显微镜和电子背散射衍射等微观分析手段,分析BG155P超高强度高韧性射孔枪管的微观组织。试验结果表明:BG155P超高强度高韧性射孔枪管可以满足200℃和200 MPa环境下射孔枪的使用要求;该射孔枪管管体的晶粒度达到10级以上,有效晶粒平均尺寸2.6μm,细小的晶粒是保证其具有优异强韧性的主要原因。
Alloying technique and manufacturing process are optimized basing on technical characteristics of perforating guns uesd in deep and extra-deep wells, and so the BG155P extra-high strength high toughness tube for perforating gun is developed. Mechanical properties of this type of tube are tested, and perforating tests are conducted. Microanalysis methods such as optical microscope （OM） and electron backscatter diffraction （EBSD） etc. are adopted to analyze the microstructure of the BG155P tube. The test results shows that the BG155P extra-high strength high toughness tube for perforating gun can meet the requirements of a perforating gun using in the environment of 200 ℃ and 200 MPa. The tube has a grain size above level 10, and an average effective grain size of 2.6 μm; and this type of fine grain is the main reason for its excellent strength and toughness.
作者
董晓明
张忠铧
卢小庆
赵存耀
石文忠
魏春印
DONG Xiaoming;ZHANG Zhonghua;LU Xiaoqing;ZHAO Cunyao;SHI Wenzhong;WEI Chunyin(Baosteel Research Institute, Baoshan Iron and Steel Co., Shanghai 201900, China;Tianjin Company, CNPC Logging Co., Ltd., Tianjin 300280, China)
出处
《钢管》
CAS
2018年第3期11-15,共5页
Steel Pipe
关键词
射孔枪管
高强度
高韧性
力学性能
微观组织
晶粒尺寸
tube for proforating gun
high strength
high toughness
mechanical property
microstructure
grain size
