CN201184188Y

CN201184188Y - Graduated ring of array induction instrument

Info

Publication number: CN201184188Y
Application number: CNU2008200789582U
Authority: CN
Inventors: 王丽蓉; 王正; 李梦春
Original assignee: China National Petroleum Corp; China Petroleum Logging Co Ltd
Current assignee: China National Petroleum Corp; China Petroleum Logging Co Ltd
Priority date: 2008-02-04
Filing date: 2008-02-04
Publication date: 2009-01-21
Anticipated expiration: 2018-02-04

Abstract

The utility model relates to an array induction instrument scale ring used for a petroleum logging instrument array induction instrument scale ring. Three groups of scale loop line grooves are embedded in the scale dial disc according to the specifications of a 1200mm scale ring, a 500 mm scale ring, a 250 mm scale ring, and scale marks are arranged in the three groups of scale loop line grooves; leading-out terminals of the scale loop line grooves are connected with banana insertion holes on the scale dial disc surface; a fixed semi-sleeve is vertically installed in the center of the scale dial disk and fixed through a non-metal coupling pin; a scale resistor insertion bar outer shell is made of non-metal materials; scale resistors matched with the three groups of scale rings with different specifications are arranged in the scale resistor insertion bar outer shell; the scale resistors in a scale resistor insertion bar are connected with banana insertion plugs which protrude out of the scale resistor insertion bar outer shell. The array sensing instrument has centralization scale, the scale result is accurate, the measurement error is small, and the field use is convenient and quick.

Description

A kind of array induction instrument calibration ring

Technical field:

The utility model relates to a kind of array induction instrument calibration ring that is used for oil well logging instrument.

Background technology:

Must carry out shop calibration with calibration loop before the well logging of array induction instrument.The graduation apparatus of domestic petroleum instrument manufacturer production does not all meet the requirement of array induction instrument shop calibration precision at present.In the instrument development process, the calibration loop that uses in early days only is disc structure, has the instrument inserting groove, and lead connects scale resistance between groove, and calibration loop is divided into 3 kinds of specifications, promptly little ring (diameter 250mm), middle ring (diameter 500mm), big ring (diameter 1200mm).When instrument calibration, because early stage calibration loop is heavier, the contact surface of disk and instrument is especially little again, and swing always, inclination can not well be located, and cause the calibration results inaccuracy, have increased measure error; In addition, because according to the instrument calibration needs, in the scale process, also to change the calibration loop and the corresponding scale resistance of different size at any time, the calibration loop of changing 3 kinds of specifications has back and forth increased labour intensity virtually, and scale resistance is connected with soft line with calibration loop, each wiring trouble, and resistance also aloft swings back and forth, also cause the calibration results inaccuracy, increased measure error; Therefore need the graduation apparatus that a kind of energy is placed in the middle, use is efficient and convenient and precision is high.

The utility model content

The purpose of this utility model is that a kind of calibration loop with 3 kinds of specifications of design is incorporated in 1 the one array induction instrument calibration ring structure on the disk, realize the scale placed in the middle of array induction instrument, guarantee the accurate grafting of scale resistance and calibration loop, reduce measure error, execute-in-place is convenient.

Array induction instrument calibration ring described in the utility model is by dial disc, the calibration loop wire casing, fixing half cover, banana jack, scale resistance is transplanted a cutting and banana plug constitutes, three groups of calibration loop wire casings are according to the 1200mm calibration loop, the 500mm calibration loop, 250mm calibration loop specification concentric is embedded in the dial disc, built-in graduation mark, each leading-out terminal of organizing the calibration loop wire casing is connected with the banana jack on dial disc surface, fixing half cover is vertically mounted on the dial disc center, fix by nonmetal attachment pegs, scale resistance cutting shell is that nonmetals constitute, built-in and three groups of scale resistance that the different size calibration loop matches, scale resistance in scale resistance is transplanted a cutting links to each other with the banana plug that exposes scale resistance cutting shell, and banana plug is inserted in the banana jack of three groups of calibration loop correspondences.

When needing to change the calibration loop of different size in the scale process, only the banana plug that scale resistance is transplanted a cutting need be inserted in the banana jack of three groups of calibration loop correspondences and get final product, make things convenient for scale, reduce measure error, improve operating efficiency.

Fixing half cover is fixed together with nonmetal attachment pegs with dial disc, and the contact surface increasing with disk and instrument guarantees that swing, inclination do not take place calibration loop on instrument, realize measuring between two parties, reduces measure error.

The invention effect:

The utility model can make the array induction instrument accomplish scale placed in the middle, and calibration results is accurate, and measure error is little, and is on-the-spot easy to use, quick.

Description of drawings

Fig. 1 array induction instrument calibration ring structure schematic diagram.

The fixing schematic diagram that partly overlaps of Fig. 2 array induction instrument calibration ring.

Fig. 3 scale resistance cutting structural representation;

Wherein:

The fixing 7-scale resistance cutting 8-banana plug that partly overlaps of 1-dial disc 2-1200mm calibration loop 3-500mm calibration loop 4-250mm calibration loop 5-banana jack 6-

The specific embodiment:

Below in conjunction with above accompanying drawing the utility model structure is illustrated:

By dial disc 1, the calibration loop wire casing, fix and partly overlap 6, banana jack 5, cutting 7 of scale resistance and banana plug 8 constitute, three groups of calibration loop wire casings are according to 1200mm calibration loop 2,500mm calibration loop 3,250mm calibration loop 4 specification concentrics are embedded in the dial disc 1, built-in graduation mark, each leading-out terminal of organizing the calibration loop wire casing is connected with the banana jack 5 on dial disc surface, fixing partly overlap 6 and be vertically mounted on the dial disc center, fix by nonmetal attachment pegs, it is that nonmetals constitute that scale resistance is transplanted a cutting 7 shells, built-in and three groups of scale resistance that the different size calibration loop matches, scale resistance in scale resistance is transplanted a cutting links to each other with the banana plug 8 that exposes scale resistance cutting shell, and banana plug is inserted in the banana jack of three groups of calibration loop correspondences.

Dial disc, scale resistance cutting shell processes with nonmetals.

Claims

1. array induction instrument calibration ring, be by dial disc, the calibration loop wire casing, fixing half cover, banana jack, scale resistance is transplanted a cutting and banana plug constitutes, it is characterized in that: three groups of calibration loop wire casings are according to the 1200mm calibration loop, the 500mm calibration loop, 250mm calibration loop specification concentric is embedded in the dial disc, built-in graduation mark, each leading-out terminal of organizing the calibration loop wire casing is connected with the banana jack on dial disc surface, fixing half cover is vertically mounted on the dial disc center, fix by nonmetal attachment pegs, scale resistance cutting shell is that nonmetals constitute, built-in and three groups of scale resistance that the different size calibration loop matches, scale resistance in scale resistance is transplanted a cutting links to each other with the banana plug that exposes scale resistance cutting shell, and banana plug is inserted in the banana jack of three groups of calibration loop correspondences.