High-strength and high-toughness thin aluminum alloy toughness ceramic oil pipe and downhole tool pipe column

• Main Author: ZOU SHUJUN
• Format: Patent
• Language: Chinese; English
• Published: 05.12.2023
• Subjects: ALLOYS; APPARATUS THEREFOR; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; FERROUS OR NON-FERROUS ALLOYS; FIXED CONSTRUCTIONS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; METALLURGY OF IRON; MINING; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PERFORMING OPERATIONS; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; PUNCHING METAL; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention relates to the technical field of aluminum alloy application, in particular to a high-strength and high-toughness thin aluminum alloy tough ceramic oil pipe and a downhole tool pipe column, and the high-strength and high-toughness thin aluminum alloy tough ceramic oil pipe and the downhole tool pipe column use high-strength thin aluminum alloy matrixes. The ultrahigh strength and the excellent corrosion resistance are achieved by utilizing the purification effect, grain refining and microalloying effects of rare earth elements on an aluminum alloy solution, reasonably blending the components of the aluminum alloy and the rare earth elements and performing special surface treatment on the surfaces of a thin aluminum alloy oil pipe and a downhole tool pipe column. 本发明涉及铝合金应用技术领域，尤其涉及一种高强高韧稀铝合金韧性陶瓷油管及井下工具管柱，本发明高强度稀铝合金韧性陶瓷油管及井下工具管柱使用高强稀铝合金基体，利用稀土元素对铝合金溶体的净化作用、细化晶粒以及微合金化作用，通过铝合金与稀土元素成分的合理调配，并对稀铝合金油管及井下工具管柱表面进行特殊的表面处理，实现超高的强度和优秀的耐腐蚀性。