Spiral depth manual measuring equipment of spiral drill collar

Abstract

The utility model relates to the technical field of drilling tools, and discloses a spiral depth manual measuring device of a spiral drill collar, which comprises two V-shaped shaping blocks, cross beams, dovetail groove sliding blocks and dial indicators, the V-shaped shaping blocks are arranged in parallel, the inner sides of the V-shaped shaping blocks are tangent to the excircle of the spiral drill collar, the cross beams are connected between the two ends of the two V-shaped shaping blocks, and the dovetail groove sliding blocks are connected with the dovetail groove sliding blocks. A notch is formed between the two cross beams, sliding grooves are formed in the opposite sides of the two cross beams and arranged in the length direction of the cross beams, the dovetail groove sliding block is located in the notch between the two cross beams, the two ends of the dovetail groove sliding block are arranged in the sliding grooves of the cross beams on the corresponding sides in a sliding mode respectively, and the dial indicator is installed on the dovetail groove sliding block. The device is simple in structure, convenient to operate and high in practicability, the depth of the spiral groove is measured through the difference value between the spiral outer circle of the dial indicator and the spiral groove by utilizing a method of automatically finding the lowest point between the outer circle and the spiral groove through the dial indicator, and then the depth of the spiral groove is visually reflected through the pointer scale of the dial indicator.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling tools, in particular to a manual measuring device for the spiral depth of a spiral drill collar. Background Art

[0002] With the growing demand for oil and natural gas, my country's oil and gas development has developed rapidly in two directions. The first direction is the rapid expansion of deep formation and offshore oil and gas development. In recent years, the focus of oil and gas field mining in my country has gradually shifted to the western region and offshore oil. The deep mining of conventional oil and gas resources and unconventional shale gas drilling and production technology have been greatly developed. Steel oil well pipes can no longer meet the requirements of ultra-deep wells, horizontal wells and other oil and gas development environments. The number of ultra-deep wells has increased, and oil and gas production sites need to develop and improve comprehensive supporting technologies for deep wells within 7,000 meters and reserve 8,000-meter ultra-deep well drilling technology; spiral drill collars have the functions of ordinary drill collars, but overcome the shortcomings of round drill collars; the spiral grooves of spiral drill collars are composed of three spiral grooves evenly distributed in the circumferential direction of the cylinder. The spiral groove with a certain depth has directionality and length requirements in the spiral direction; the milling cutter disc is composed of a blade, a cutter body and accessories; in the process of processing the spiral groove, the milling cutter disc and the workpiece have a certain angle, and the spiral groove will have a certain curvature after the actual processing is completed; due to the differences in machine tool accuracy and operator quality, the processed geometric dimensions will have certain errors. In order to ensure the consistency and interchangeability of products processed by the same drawing, the smaller the error of the products produced, the better, it is necessary to improve or upgrade the measuring tools and measurement methods to meet the needs of customers and the market.

[0003] Since the spiral drill collar surface is processed with concave spiral grooves, the contact area between the drill collar and the well wall is reduced, ensuring that the mud circulates around the drill collar, which is beneficial to the balance of static pressure of the drill collar in all directions and can prevent the pressure difference from sticking and jamming the drill; the depth of the spiral groove of the spiral drill collar and the size of the measurement error have a certain influence on the balance of static pressure of the drill collar in all directions. Therefore, a manual measurement device for the spiral depth of the spiral drill collar was developed to improve the measurement accuracy of the spiral depth of the spiral drill collar. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a manual measuring device for the spiral depth of a spiral drill collar, which can improve the measuring accuracy of the spiral depth of the spiral drill collar.

[0005] In order to achieve the above utility model purpose, the technical solution adopted is as follows:

[0006] A manual measuring device for the spiral depth of a spiral drill collar comprises a V-shaped shaping block, a crossbeam, a dovetail groove slider and a dial indicator, wherein two V-shaped shaping blocks are arranged in parallel, and the inner side of the V-shaped shaping block is tangent to the outer circle of the spiral drill collar, a crossbeam is connected between the two ends of the two V-shaped shaping blocks, a notch is formed between the two crossbeams, a slide groove is opened on the opposite side of the two crossbeams, and the slide groove is arranged along the length direction of the crossbeam, the dovetail groove slider is located in the notch between the two crossbeams, and the two ends of the dovetail groove slider are respectively slidably arranged in the slide grooves of the corresponding side crossbeams, and the dial indicator is installed on the dovetail groove slider.

[0007] As a further improvement of the utility model, the dial indicator is mounted on the dovetail groove slider by means of fixing screws.

[0008] As a further improvement of the present invention, the V-shaped shaping block and the crossbeam are connected via a connecting piece.

[0009] As a further improvement of the present invention, the connecting piece is a cross-shaped protrusion fixed on the V-shaped shaping block, and a cross-shaped groove matching the cross-shaped protrusion is provided on the cross beam along the length direction. The setting of the cross-shaped groove not only facilitates the connection with the connecting piece, but also reduces the weight of the cross beam.

[0010] As a further improvement of the utility model, cross-shaped slots are symmetrically provided at both ends of the cross beam.

[0011] As a further improvement of the present invention, the slide groove is communicated with a cross-shaped slot at a corresponding position.

[0012] The beneficial effects of the utility model are as follows: the utility model has the advantages of simple structure, convenient operation and strong practicality, and utilizes the method of automatically finding the lowest point between the outer circle and the spiral groove by using the dial indicator, and measures the depth of the spiral groove by the difference between the outer circle of the dial indicator spiral and the spiral groove, and then intuitively reflects the depth of the spiral groove by the dial indicator pointer scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 It is a partial structural schematic diagram of the utility model;

[0017] Figure 4 This is an illustration of the use of the utility model Figure 1 ;

[0018] Figure 5 This is an illustration of the use of the utility model Figure 2 .

[0019] In the figure: 1. V-shaped shaping block, 2. cross beam, 3. dovetail groove slider, 4. dial indicator, 5. notch, 6. slide groove, 7. fixing screw, 8. connecting piece, 9. cross-shaped slot, 10. spiral drill collar. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0022] like Figure 1-5 As shown, a manual measuring device for the spiral depth of a spiral drill collar comprises a V-shaped shaping block 1, a cross beam 2, a dovetail groove slider 3 and a dial indicator 4, wherein two V-shaped shaping blocks 1 are arranged in parallel, and the inner side of the V-shaped shaping block 1 is tangent to the outer circle of the spiral drill collar 10, a cross beam 2 is connected between the two ends of the two V-shaped shaping blocks 1, a notch 5 is formed between the two cross beams 2, a slide groove 6 is provided on the opposite sides of the two cross beams 2, and the slide groove 6 is arranged along the length direction of the cross beam 2, the dovetail groove slider 3 is located in the notch 5 between the two cross beams 2, and the two ends of the dovetail groove slider 3 are respectively slidably arranged in the slide groove 6 of the corresponding side cross beam 2, and the dial indicator 4 is installed on the dovetail groove slider 3.

[0023] The dial indicator 4 is mounted on the dovetail groove slider 3 via fixing screws 7 .

[0024] The V-shaped shaping block 1 and the cross beam 2 are connected via a connecting piece 8 .

[0025] The connecting member 8 is a cross-shaped protrusion fixed on the V-shaped shaping block 1, and a cross-shaped groove 9 matching the cross-shaped protrusion is provided on the cross beam 2 along the length direction. The setting of the cross-shaped groove 9 not only facilitates the connection with the connecting member 8, but also reduces the weight of the cross beam 2.

[0026] Cross-shaped slots 9 are symmetrically provided at both ends of the cross beam 2 .

[0027] The slide groove 6 is communicated with a cross-shaped clamping groove 9 at a corresponding position.

[0028] When in use, the V-shaped shaping block 1 is assembled at both ends of the crossbeam 2, so that the two crossbeams 2 form a certain angle to each other to form a V-shaped block. When measuring, the V-shaped block remains tangent to the outer circle of the spiral drill collar 10; the dovetail groove slider 3 is installed in the notch 5 between the V-shaped blocks formed by the two crossbeams 2, and the fixing screw 7 fixes the dial indicator 4 on the dovetail groove slider 3, so that the dovetail groove slider 3 moves left and right longitudinally on the crossbeam 2; when the dovetail groove slider 3 drives the dial indicator 4 to the left or right on the outer circle surface of the spiral drill collar 10, the dial indicator 4 is zeroed, and then the dovetail groove slider 3 is moved left and right. Or to the right, observe that when the reading of the dial indicator 4 is the maximum, the obtained value is the spiral groove depth; in the measurement process, the midpoint of the crossbeam 2 of the manual spiral depth measuring instrument needs to be set up on the spiral, so that the size of the measured data should be compared with the drawing data to determine whether a spiral groove needs to be repaired and marked, and then compared with the standard requirements to determine whether it is qualified; the manual spiral depth measuring instrument using the spiral drill collar 10 has lower requirements for the operator, and the error of the measurement result is small. The error of measuring the spiral depth is between 0.3 and 0.5 mm.

[0029] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, component splitting or combination, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. Manual measuring device for spiral depth of spiral drill collar, characterized by: It includes a V-shaped shaping block, a crossbeam, a dovetail groove slider and a dial indicator. Two V-shaped shaping blocks are arranged in parallel, and the inner side of the V-shaped shaping block is tangent to the outer circle of the spiral drill collar. A crossbeam is connected between the two ends of the two V-shaped shaping blocks, and a notch is formed between the two crossbeams. A slide groove is opened on the opposite side of the two crossbeams, and the slide groove is arranged along the length direction of the crossbeam. The dovetail groove slider is located in the notch between the two crossbeams, and the two ends of the dovetail groove slider are respectively slidably arranged in the slide groove of the corresponding side crossbeam, and the dial indicator is installed on the dovetail groove slider.

2. The manual measuring device for the spiral depth of a spiral drill collar according to claim 1, characterized in that: The dial indicator is mounted on the dovetail groove slider via fixing screws.

3. The manual measuring device for spiral depth of spiral drill collar according to claim 1, characterized in that: The V-shaped shaping block and the crossbeam are connected via a connecting piece.

4. The manual measuring device for spiral depth of spiral drill collar according to claim 3, characterized in that: The connecting piece is a cross-shaped clamping protrusion fixed on the V-shaped shaping block, and a cross-shaped clamping groove matching the cross-shaped clamping protrusion is arranged on the cross beam along the length direction.

5. The manual measuring device for the spiral depth of a spiral drill collar according to claim 4, characterized in that: Cross-shaped slots are symmetrically provided at both ends of the cross beam.

6. The manual measuring device for spiral depth of spiral drill collar according to claim 4, characterized in that: The slide groove is communicated with the cross-shaped clamping groove at the corresponding position.

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