On-service petroleum drill pipe detection and classification evaluation method

A technology of oil drill pipe and evaluation method, which can be used in drill pipe, drill pipe, earth-moving drilling, etc., and can solve problems such as serious accidents

Inactive Publication Date: 2007-12-12
ANTON OILFIELD SERVICES (GRP) LTD
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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 ca

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  • On-service petroleum drill pipe detection and classification evaluation method

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Embodiment Construction

[0021] See Figure 1:

[0022] A method for testing and grading evaluation of in-service oil drill pipes, comprising the following steps:

[0023] 1. Preparations for the inspection of in-service oil drill pipes:

[0024] 1. The in-service oil drill pipes to be inspected are placed on the inspection platform and arranged neatly and assigned job numbers.

[0025] 2. The steel stamp number is stamped on the external thread joint end of the oil drill pipe, and the steel number is compiled according to the user unit, steel grade, specification, delivery time and inspection serial number. For example, the codes of drill pipes of various specifications use 11 digits, expressed as : XXXXXXXX-XX-XX, the first digit represents the drill pipe steel grade X, G or S, etc., the second and third digits represent the year of manufacture, the four, five, six, and seven digits represent the inspection serial number of the drill pipe, and the eighth , Nine digits represent the unit that the oi...

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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...

Claims

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Application Information

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IPC IPC(8): E21B17/00G01N27/82G06F19/00
Inventor 何先富何川蒋鹏马洪华贺志刚马建民
Owner ANTON OILFIELD SERVICES (GRP) LTD
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