Spiral depth automatic measuring instrument of spiral drill collar

Abstract

The utility model relates to an automatic spiral depth measuring instrument of a spiral drill collar, which comprises a V-shaped sliding block, and a measuring mechanism is mounted at one end of the V-shaped sliding block. The measuring mechanism comprises an open-loop fixing plate, an open-loop pressing plate and an open-loop sliding rail, the open-loop fixing plate is installed on a V-shaped sliding block through a V-shaped guide rail so that the open-loop fixing plate can move along the V-shaped sliding block, the open-loop pressing plate is fixedly installed on the open-loop fixing plate, an upper row of annularly-arranged bearings and a lower row of annularly-arranged bearings are installed between the open-loop pressing plate and the open-loop fixing plate, and the open-loop sliding rail is fixedly installed on the open-loop pressing plate. A first laser ranging mechanism and a second laser ranging mechanism are installed on the side, away from the ring opening fixing plate, of the ring opening sliding rail. According to the method for automatically searching the lowest point between the outer circle and the spiral groove through the elastic force of the spring, the depth of the spiral groove is measured through rotation of the universal ball of the spiral automatic measuring instrument and the difference value between the spiral groove and the outer circle, and then data are transmitted to a computer for storage through the laser distance measuring sensor and the wireless transmitting module. And the measurement efficiency and the measurement accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling tools, in particular to an automatic measuring instrument 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 surface of the spiral drill collar 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 on the drill collar in all directions and can prevent 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 on the drill collar in all directions. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide an automatic measuring instrument for the spiral depth of a spiral drill collar to solve the problems mentioned in the above background technology.

[0005] In order to achieve the above purpose, the technical solutions adopted are as follows:

[0006] The automatic measuring instrument for the spiral depth of a spiral drill collar comprises a V-shaped slider installed on the spiral drill collar and in the axial direction of the spiral drill collar, and a measuring mechanism is installed at one end of the V-shaped slider;

[0007] The measuring mechanism comprises an open-loop fixing plate, an open-loop pressure plate and an open-loop slide rail. The open-loop fixing plate is mounted on the V-shaped slide block through a V-shaped guide rail so that the open-loop fixing plate moves along the V-shaped slide block. The open-loop pressure plate is fixedly mounted on the open-loop fixing plate. Two upper and lower rows of ring-shaped bearings are mounted between the open-loop pressure plate and the open-loop fixing plate. The open-loop pressure plate, the open-loop fixing plate and the open-loop slide rail are coaxially arranged. A slide groove is provided on one side of the open-loop slide rail to cooperate with the bearing. The other side of the open-loop slide rail passes through the open-loop groove provided on the open-loop pressure plate. A laser distance measuring mechanism 1 and a laser distance measuring mechanism 2 are mounted on the side of the open-loop slide rail away from the open-loop fixing plate.

[0008] The first laser distance measuring mechanism is used to measure the depth of the rotating groove, and the second laser distance measuring mechanism is used to measure the outer circle of the spiral drill collar.

[0009] As a further improvement of the utility model, the open-loop fixed plate, the open-loop pressure plate and the open-loop slide rail are in an unsealed ring structure. The open-loop pressure plate includes an outer ring pressure plate and an inner ring pressure plate with different diameters. The outer ring pressure plate and the inner ring pressure plate are coaxially installed on the open-loop fixed plate, and an open-loop groove is formed between the inner circle of the outer ring pressure plate and the outer circle of the inner ring pressure plate.

[0010] As a further improvement of the utility model, three groups of laser ranging mechanisms are installed on the same side of the open-loop slide rail, and the angles of the three groups of laser ranging mechanisms from the center of the spiral drill collar are all 120°. The laser ranging mechanism includes a laser ranging sensor, a fixed column, a spring, a movable rod and a universal ball. The fixed column is fixedly installed on the open-loop slide rail, the laser ranging sensor is installed on the upper end of the fixed column, a spring is arranged in the fixed column, the upper end of the movable rod is inserted in the fixed column and top-connected on the spring, and the lower end of the movable rod is rollingly installed with a universal ball.

[0011] As a further improvement of the present invention, the laser ranging mechanism 2 has the same structure as the laser ranging mechanism 1, the fixed column axes intersect and are perpendicular to the axis of the spiral drill collar, and the laser ranging mechanism 2 is located on the fixed column angle bisector of two adjacent laser ranging mechanisms 1.

[0012] As a further improvement of the utility model, the laser ranging sensors of the laser ranging mechanism 1 and the laser ranging mechanism 2 are connected to the wireless transmitting module. At the same time, a battery is installed on the V-shaped slider to provide power for the laser ranging sensor and the wireless transmitting module.

[0013] The beneficial effects of the utility model are:

[0014] The present invention uses the elastic force of a spring to automatically find the lowest point between an outer circle and a spiral groove, measures the depth of the spiral groove by the rotation of a universal ball of a spiral automatic measuring instrument and the difference between the spiral groove and the outer circle, and then transmits the data to a computer for storage through a laser ranging sensor and a wireless transmitter module, thereby improving measurement efficiency and measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the measuring mechanism in the utility model;

[0018] Figure 3 It is a cross-sectional view of the measuring mechanism in the utility model. DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] Please refer to Figure 1-3 , an automatic measuring instrument for the spiral depth of a spiral drill collar, comprising a V-shaped slider 1 installed on the spiral drill collar and in the axial direction of the spiral drill collar, and a measuring mechanism 2 is installed at one end of the V-shaped slider 1;

[0022] The measuring mechanism 2 includes an open-loop fixing plate 21, an open-loop pressure plate 22 and an open-loop slide rail 23. The open-loop fixing plate 21 is installed on the V-shaped slide block 1 through a V-shaped guide rail, so that the open-loop fixing plate 21 moves along the V-shaped slide block 1. The open-loop pressure plate 22 is fixedly installed on the open-loop fixing plate 21. Two upper and lower rows of ring-shaped bearings 24 are installed between the open-loop pressure plate 22 and the open-loop fixing plate 21. The open-loop pressure plate 22, the open-loop fixing plate 21 and the open-loop slide rail 23 are coaxially arranged. A slide groove is provided on one side of the open-loop slide rail 23 to cooperate with the bearing 24. The open-loop slide rail 23 The other side passes through an open-loop groove 223 provided on the open-loop pressure plate 22, and a laser distance measuring mechanism 1 3 and a laser distance measuring mechanism 2 4 are installed on the side of the open-loop slide rail 23 away from the open-loop fixed plate 21; the open-loop fixed plate 21, the open-loop pressure plate 22 and the open-loop slide rail 23 are in an unsealed annular structure, and the open-loop pressure plate 22 includes an outer ring pressure plate 221 and an inner ring pressure plate 222 with different diameters, and the outer ring pressure plate 221 and the inner ring pressure plate 222 are coaxially installed on the open-loop fixed plate 21, and an open-loop groove 223 is between the inner circle of the outer ring pressure plate 221 and the outer circle of the inner ring pressure plate 222.

[0023] The laser distance measuring mechanism 13 is used to measure the depth of the rotating groove, and the laser distance measuring mechanism 24 is used to measure the outer circle of the spiral drill collar; three sets of laser distance measuring mechanisms 13 are installed on the same side of the open-loop slide rail 23, and the angles of the three sets of laser distance measuring mechanisms 13 from the center of the spiral drill collar are all 120°. The laser distance measuring mechanism 13 includes a laser distance measuring sensor 31, a fixed column 32, a spring 33, a movable rod 34 and a universal ball 35. The fixed column 32 is fixedly installed on the open-loop slide rail 23, and the laser distance measuring sensor 31 is installed on the A spring 33 is arranged in the upper end of the fixed column 32, and the upper end of the movable rod 34 is inserted in the fixed column 32 and is connected to the spring 33. A universal ball 35 is rotatably mounted on the lower end of the movable rod 34. The elastic force applied to the spring 33 in the fixed column 32 is transmitted to the movable rod 34 and the universal ball 35, and automatically searches for the lowest point in the spiral groove of the spiral drill collar. When self-centering, the open-loop slide rail 23 is slowly rotated to cooperate with automatic centering, and when moving axially, it remains at the lowest point in the spiral groove.

[0024] The laser distance measuring mechanism 2 4 has the same structure as the laser distance measuring mechanism 1 3, the axes of the fixed columns 32 intersect and are perpendicular to the axis of the spiral drill collar, the laser distance measuring mechanism 2 4 is located on the angular bisector of the fixed columns 32 of two adjacent laser distance measuring mechanisms 1 3, and the fixed columns 32 of the laser distance measuring mechanism 2 4 always measure the outer circle of the spiral drill collar; the laser distance measuring mechanism 1 3 and the laser distance measuring mechanism 2 4 have the laser distance measuring sensor 31 and the wireless transmitting module 5, and at the same time, a battery 6 is installed on the V-shaped slider 1, and the battery 6 provides power for the laser distance measuring sensor 31 and the wireless transmitting module 5.

[0025] During the measurement process, the automatic measuring instrument is installed from one end of the spiral drill collar. The automatic measuring instrument is zeroed when the workpiece has a smooth surface without a spiral groove. The V-shaped slider 1 is slowly moved and the rotating open-loop slide rail 23 is used to guide the measuring component into the spiral groove. When a difference occurs between the fixed column 32 of the laser ranging mechanism 2 4 and the fixed column 32 of the laser ranging mechanism 1 3, it is recorded. According to the sizes recorded by the three laser ranging mechanisms 1 3, they are first compared with each other 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 automatic spiral depth measuring instrument using the spiral drill collar has low requirements on the operator, and the error in measuring the spiral depth is between 0.1 and 0.3 mm.

[0026] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic measuring instrument for the spiral depth of a spiral drill collar, characterized in that: It includes a V-shaped slider installed on the spiral drill collar and in the axial direction of the spiral drill collar, and a measuring mechanism is installed at one end of the V-shaped slider; The measuring mechanism comprises an open-loop fixing plate, an open-loop pressure plate and an open-loop slide rail. The open-loop fixing plate is mounted on the V-shaped slide block through a V-shaped guide rail so that the open-loop fixing plate moves along the V-shaped slide block. The open-loop pressure plate is fixedly mounted on the open-loop fixing plate. Two upper and lower rows of ring-shaped bearings are mounted between the open-loop pressure plate and the open-loop fixing plate. The open-loop pressure plate, the open-loop fixing plate and the open-loop slide rail are coaxially arranged. A slide groove is provided on one side of the open-loop slide rail to cooperate with the bearing. The other side of the open-loop slide rail passes through the open-loop groove provided on the open-loop pressure plate. A laser distance measuring mechanism 1 and a laser distance measuring mechanism 2 are mounted on the side of the open-loop slide rail away from the open-loop fixing plate. The first laser distance measuring mechanism is used to measure the depth of the rotating groove, and the second laser distance measuring mechanism is used to measure the outer circle of the spiral drill collar.

2. The automatic measuring instrument for spiral depth of spiral drill collar according to claim 1, characterized in that: The open-loop fixing plate, the open-loop pressure plate and the open-loop slide rail are in an unsealed ring structure. The open-loop pressure plate includes an outer ring pressure plate and an inner ring pressure plate with different diameters. The outer ring pressure plate and the inner ring pressure plate are coaxially installed on the open-loop fixing plate. An open-loop groove is formed between the inner circle of the outer ring pressure plate and the outer circle of the inner ring pressure plate.

3. The automatic measuring instrument for spiral depth of spiral drill collar according to claim 2, characterized in that: Three groups of laser ranging mechanisms are installed on the same side of the open-loop slide rail. The angles of the three groups of laser ranging mechanisms from the center of the spiral drill collar are all 120°. The laser ranging mechanism includes a laser ranging sensor, a fixed column, a spring, a movable rod and a universal ball. The fixed column is fixedly installed on the open-loop slide rail, the laser ranging sensor is installed on the upper end of the fixed column, a spring is arranged in the fixed column, the upper end of the movable rod is inserted in the fixed column and top-connected on the spring, and the lower end of the movable rod is rollingly installed with a universal ball.

4. The automatic measuring instrument for spiral depth of spiral drill collar according to claim 3, characterized in that: The laser distance measuring mechanism 2 has the same structure as the laser distance measuring mechanism 1, the axes of the fixed columns intersect and are perpendicular to the axis of the spiral drill collar, and the laser distance measuring mechanism 2 is located on the fixed column angle bisector of two adjacent laser distance measuring mechanisms 1.

5. The automatic measuring instrument for spiral depth of spiral drill collar according to claim 4, characterized in that: The laser distance measuring sensors of the laser distance measuring mechanism 1 and the laser distance measuring mechanism 2 are connected to the wireless transmitting module. Meanwhile, a battery is installed on the V-shaped slider, and the battery provides power for the laser distance measuring sensor and the wireless transmitting module.

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