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Chamfer diameter measurement method for oil drilling tool connector

A technology of diameter measurement and drill joint, which is applied in the direction of mechanical diameter measurement, etc., can solve the problems of inaccurate measurement and low measurement work efficiency, and achieve the effect of solving the inability to directly and accurately measure, ensuring measurement work, and improving work efficiency

Active Publication Date: 2012-03-21
BC P INC CHINA NAT PETROLEUM CORP +1
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AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to aim at the tool joint chamfer diameter D F The problems of inaccurate measurement and low measurement efficiency provide a tool joint chamfer diameter D that can significantly improve its measurement accuracy and measurement efficiency F Measurement methods

Method used

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  • Chamfer diameter measurement method for oil drilling tool connector
  • Chamfer diameter measurement method for oil drilling tool connector
  • Chamfer diameter measurement method for oil drilling tool connector

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Embodiment Construction

[0014] Drill tool joint chamfer diameter D according to the present invention F The measuring tool consists of the main measuring ruler 1, the fixed end measuring arm 2, the sliding end measuring arm 3, the fixed end measuring datum plane 4, the sliding end measuring datum plane 5, the fixed end steel spherical probe 6, and the sliding end steel spherical probe 7 constitutes; the fixed-end measurement reference plane 4 is fixed at the zero scale at the end of the main measuring ruler 1, the fixed-end measuring arm 2 is fixed on the top of the main measuring ruler 1, and the fixed-end steel spherical probe 6 is fixed on the fixed-end measuring arm 2, the sliding end measurement datum surface 5 and the sliding end measuring arm 3 are fixed on a slide rail, and the slide rail is placed on the scale end of the main measuring ruler 1, and can slide left and right on the scale end of the main measuring ruler 1.

[0015] refer to image 3. When measuring, put the fixed end measureme...

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Abstract

The invention relates to a chamfer diameter measurement method for an oil drilling tool connector. A measurement tool is formed by a main measurement scale, a fixed end measurement arm, a sliding end measurement arm, a fixed end measurement datum plane, a sliding end measurement datum plane, a fixed end steel sphere measurement head and a sliding end steel sphere measurement head. The fixed end measurement datum plane is tightly attached to one end of a sealing end face of the drilling tool connector, the fixed end steel sphere measurement head is tightly attached to a chamfer face of the drilling tool connector, and a maximum value is read. According to the 45-degree chamfer face of the drilling tool connector, compensation quantity L1 between a corresponding measurement point and a true DF value is calculated, namely DF = (L + 20 + 2*L1) (mm). The L in the formula is the actual measurement value. The measurement of the DF value of the chamfer diameter is achieved by previously compensating the compensation value on a pair of calipers. The method resolves the problem that the chamfer diameter DF of the oil drilling tool connector cannot be directly and accurately measured, and improves accuracy and efficiency of measurement.

Description

technical field [0001] The invention relates to an oil drilling tool joint chamfer D F Method of diameter measurement. Background technique [0002] Oil drilling tools are connected into drill strings one by one through special tapered threaded joints with a certain taper, and are lowered into the well to complete the drilling task. There are external threaded joints and internal threaded joints. In order to ensure the machining dimensional accuracy and interchangeability of the connecting thread of oil drilling tools and improve the safety and reliability of the threaded connection of drilling tools, API SPEC 5DP-2009 "Drill Pipe Specification" (American Petroleum Institute standard) and ISO 11961: 2008 standards both There are clear dimensional tolerance requirements for the geometric dimensions and thread parameters of drill tool threaded joints. [0003] Tool joint chamfer diameter D F It is an important geometric dimension parameter measured by API SPEC 5DP, which al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/08
Inventor 吴健卫尊义白小亮艾裕丰邵晓东
Owner BC P INC CHINA NAT PETROLEUM CORP
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