On-service petroleum drill pipe detection and classification evaluation method

Abstract

A in-service oil drill rob detecting, grading and evaluation method includes the following steps: 1, oil drill rob detecting preparatory work; 2, measuring the drill rob inner and outer joints number; 3, measuring the drill rob pipe body number; 4, detecting and repairing the drill rob joint thread and the sealing shoulder surface; 5, measuring the straightness of the drill rob, visual measuring and depopulating the drill rob hydrophthalmos; 6, detecting the inner wall corrosion from the drill rob inner and outer thread joints to the pipe body in the 1.2 m scope of the pipe body centre; 7, detecting the drill rob with ultrasonic; 8, detecting drill rob electromagnetic induction; 9, detecting the drill rob joints thread magnetic powder; 10, electromagnetic detecting the abnormal zone and re-detecting the inner wall corrosion in the scope of 1.2 m of two ends of drill rob with endoscope; 11, classifying the detection data and marking in different levels; 12, writing the classify statistics and reports. The beneficial effects of the invention are: comprehensive total detecting and classifying evaluating the old in-service oil drill rob, it can effectively avoid the frequent condition of various accidents in the oil field drilling construction using in-service oil drill rob.

Description

technical field [0001] The invention relates to the technical field of petroleum drilling engineering, and belongs to a method for detecting, grading and evaluating the technical quality of petroleum drilling pipes used in industries such as petroleum, natural gas, and geology after field drilling operations, and is an in-service petroleum drilling pipe A method of retesting and grading evaluation after a period of time is used, Background technique [0002] In the oil field drilling engineering, the oil drill pipe is the main part of the ground rotation system, lifting system, circulation system, drill collar and drill bit. Through them, the turntable drives the drill bit to rotate, the hook drives the drill bit to lift, and the mud is sent to the bottom of the well to form a circulation. , so that the drill bit can break the rock formation and drill continuously. During normal drilling, oil drill pipes are subject to complex alternating stresses such as tension, compressi...

AI Technical Summary

Problems solved by technology

The oil drill pipes used in oil field drilling engineering are often imported from domestic and foreign metallurgical steel mills for operation, but they must be tested before they are used again after use, otherwise, serious accidents will be caused, and the use of For the final inspection of in-service oil drill pipes, there must be a very advanced method that can comprehensively detect and grade the old oil drill pipes to meet the requirements of drilling production and oilfield use.

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