Portable combined type well diameter scale ring device

Abstract

The utility model provides a portable combined type well diameter scale ring device. The portable combined type well diameter scale ring device comprises a threaded connecting rod, a scale ring, a fixing sleeve and a pin shaft. The scale ring is composed of three groups of upper semicircular metal rings and lower semicircular metal rings with different diameters, and the upper semicircular metal rings and the lower semicircular metal rings in each group are connected through the pin shafts. The utility model provides a portable combined type caliper scale ring device which can be folded, is in a circular ring shape when being unfolded in use and is in a semi-circular ring shape when being stored or carried, scale is realized by adopting a traditional multi-stage metal ring, and the size of the scale ring device is greatly reduced under the condition that the basic requirement of accurate scale of a caliper is met. The use and the carrying are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of well logging, especially portable combined well diameter scale ring device. BACKGROUND

[0002] Well diameter scale ring is mainly used for the calibration and verification of well caliper in the field of well logging, and is a key component for ensuring the measurement accuracy of well caliper, which mainly comprises a scale ring, a fixing sleeve and a connecting rod.

[0003] In the field of well logging, well diameter logging plays an important role in evaluating strata and detecting casing quality. Before and after well diameter logging, a special scale ring device is needed to calibrate and verify the well caliper. Currently, one set of scale ring is usually used for instrument calibration in the industry. The conventional well diameter scale ring device is generally composed of 4-6 independent metal rings with different diameters, which has the following three technical problems: (1) each metal scale ring is independent and scattered, which is inconvenient to carry; (2) each metal scale ring does not have a fixing sleeve in direct and close contact with the well caliper probe, and during well caliper calibration, all well arms need to be directly clamped on the inner wall of the metal scale ring. However, due to the gravitational effect of the metal scale ring and the well arm, the metal scale ring and the well caliper are difficult to be coaxial, resulting in a large difference in the measurement values of each well arm, which further affects the calibration accuracy; (3) different diameter metal scale rings are needed for step-by-step calibration of well caliper, which is relatively complex to operate and difficult to ensure the same center position of different diameter metal rings, which further affects the calibration accuracy.

[0004] The existing technical solution "scale ring for multi-arm well caliper" with patent application number 201120322717.X is trumpet-shaped, which integrates the scale measurement section (in the form of a step) and the instrument fixing section into a structure, avoiding the problem of independent and scattered components. At the same time, the use of a fork slot in the instrument fixing section can ensure that the scale ring device is coaxial with the well caliper, which can ensure that the measurement values of each well arm are similar and the center positions are the same when calibrating different diameters, thereby achieving high calibration accuracy. However, according to this technical solution, the 80-100-150-200mm scale ring device is trumpet-shaped, with a maximum diameter of 205mm and a length of 210-240mm, which occupies a large overall space and is still inconvenient to carry.

[0005] Therefore, it is necessary to provide a portable combined well diameter scale ring device to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The utility model provides a portable combined well diameter scale ring device, which solves the problem of large overall space occupation and inconvenience in carrying.

[0007] To solve the above technical problems, the utility model provides a portable combined well diameter scale ring device, include: threaded connecting rod, scale ring, fixed sleeve and pin shaft,

[0008] The scale ring is composed of three groups of upper and lower half circle metal rings with different diameters, the upper and lower half circle metal rings of each group are connected through the pin shaft, the diameters are 100mm, 150mm and 200mm respectively, each scale ring is made of 304 stainless steel, the wall thickness is 3mm, the width is 20mm, there are screw holes in the top center of the three upper half rings for the threaded connecting rod to screw in and out, there are screw holes in the center of the three lower half rings for the threaded connecting rod to screw in and out,

[0009] Preferably, the fixed sleeve is made of 304 stainless steel as a whole, the wall thickness is 3mm, the width is 20mm, the inner diameter is 80mm, the top center is slotted to one side for the threaded connecting rod to rotate, and there are screw holes in the lower center for the threaded connecting rod to screw in and out.

[0010] Preferably, the pin shaft is located at the contact part of the upper half ring and the lower half ring on one side, so that the upper half ring can be folded along one side to the lower half ring.

[0011] Preferably, the outer surface of the scale ring of the upper half ring is fixedly connected with a threaded device, the internal threads of the threaded device are engaged with a limiting device, the outer surface of the scale ring of the lower half ring is fixedly installed with a connecting block, and a limiting hole is formed in the middle of one side of the surface of the connecting block.

[0012] Preferably, the threaded device comprises a fixed block, a threaded hole and a limiting cavity, the fixed block is fixedly installed on the outer surface of the scale ring of the upper half ring, the threaded hole is formed in the middle of one side of the fixed block, and the limiting cavity is formed in the middle of the inside of the fixed block.

[0013] Preferably, the limiting device comprises a threaded rod, a limiting ring block and an adjusting block, the threaded rod is threadedly engaged in the inside of the threaded hole, the limiting ring block is fixedly installed on the outer surface of the threaded rod, and the adjusting block is fixedly installed on one end of the threaded rod.

[0014] Preferably, the threaded rod is threadedly engaged in the inside of the threaded hole, and the limiting ring block is slidingly installed in the inside of the limiting cavity.

[0015] Compared with the related art, the utility model provides a portable combined well diameter scale ring device with the following beneficial effects:

[0016] This utility model provides a portable combined wellbore scale ring device. The scale ring device is foldable. When in use, it unfolds into a circular shape, and when stored or carried, it is folded into a semi-circular shape. It uses traditional multi-stage metal rings to achieve the scale. While meeting the basic requirements of accurate wellbore instrument scale, it also greatly reduces the size of the scale ring device, making it convenient to use and carry. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a first embodiment of a portable combined wellbore scale ring device provided by this utility model;

[0018] Figure 2 for Figure 1 The diagram shows a side view of the fixing sleeve.

[0019] Figure 3 A schematic diagram of the folded form of a portable combined wellbore scale ring device provided by this utility model;

[0020] Figure 4 A schematic diagram of the structure of a second embodiment of a portable combined wellbore scale ring device provided by this utility model;

[0021] Figure 5 for Figure 4 The enlarged schematic diagram at point A is shown below;

[0022] Figure 6 for Figure 5 The diagram shows a cross-sectional view of the threaded device.

[0023] Figure 7 for Figure 5 The diagram shows the structure of the limiting device.

[0024] The following are the labels in the diagram: 1. Threaded connecting rod, 2. Scale ring, 3. Fixing sleeve, 4. Pin, 5. Caliper probe, 6. Caliper arm, 7. Threaded device, 71. Fixing block, 72. Threaded hole, 73. Limiting cavity, 8. Limiting device, 81. Threaded rod, 82. Limiting ring block, 83. Adjusting block, 9. Connecting block, 10. Limiting hole. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] First Embodiment

[0027] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a portable combined wellbore scale ring device provided by this utility model; Figure 2 for Figure 1The diagram shows a side view of the fixing sleeve. Figure 3 A schematic diagram of the folded form of a portable combined wellbore scale ring device provided by this utility model. The portable combined wellbore scale ring device includes: a threaded connecting rod 1, a scale ring 2, a fixing sleeve 3, and a pin 4;

[0028] The scale ring 2 consists of three sets of upper and lower semicircular metal rings with different diameters. The upper and lower semicircular metal rings in each set are connected by the pin 4. The diameters are 100mm, 150mm and 200mm respectively. Each scale ring 2 is made of 304 stainless steel with a wall thickness of 3mm and a width of 20mm. There is a screw hole at the top center of each of the three upper semicircles for screwing in and out of the threaded connecting rod 1. There are screw holes at two positions in the center of each of the three lower semicircles for screwing in and out of the threaded connecting rod 1.

[0029] The caliper probe 5 is located in the middle of the fixed sleeve 3;

[0030] The wellbore arm 6 is disposed on the inner surface of a certain level of the graduated ring 2.

[0031] The fixing sleeve 3 is made of 304 stainless steel with a wall thickness of 3mm, a width of 20mm, and an inner diameter of 80mm. The top center has a slot on one side for the rotation of the threaded connecting rod 1, and there are two screw holes at the bottom center for the threaded connecting rod 1 to be screwed in and out.

[0032] The pin 4 is located at the contact point between the upper half ring and the lower half ring on one side, which allows the upper half ring to be folded down to the lower half ring along one side.

[0033] The inner diameter of the scale ring 2 and the fixing sleeve 3 can be adjusted according to the actual measurement range of the wellbore gauge.

[0034] The working principle of the portable combined wellbore scale ring device provided by this utility model is as follows:

[0035] During operation, first open the wellbore caliper ring device to make it circular, such as... Figure 1 .

[0036] like Figure 2 As shown, the caliper probe 5 is placed into the fixed sleeve 2 of the scale ring device, and the caliper arm 6 is also placed in the fixed sleeve 2. Then, the three threaded connecting rods 1 are screwed in cyclically so that the three threaded connecting rods 1 are in close contact with the housing of the caliper probe 5. At the same time, the number of threads of the three threaded connecting rods 1 entering the fixed sleeve 2 is equal. The data of the scale diameter is collected according to the scale data collection method required by the caliper. After the data collection is completed, the three threaded connecting rods 1 are screwed out to separate the caliper probe 5 from the fixed sleeve 2.

[0037] The calibrating ring device is folded to be a semicircle, and the calibrating ring device is stored.

[0038] The calibrating ring device is folded to be a semicircle, and the calibrating ring device is stored.

[0039] After the calibration is completed, the calibrating ring device is folded to be a semicircle, and the calibrating ring device is stored. Figure 3

[0040] Compared with the related art, the portable combined well calibrating ring device has the following beneficial effects:

[0041] The portable combined well calibrating ring device is foldable, is unfolded to be a circular ring during use, is stored or carried to be a semicircular ring, adopts a traditional multi-stage metal ring to realize calibration, and is convenient to use and carry.

[0042] Second embodiment

[0043] Please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 , based on the first embodiment of the application, a portable combined well calibrating ring device is provided, and the second embodiment of the application proposes another portable combined well calibrating ring device. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the separate implementation of the first embodiment.

[0044] ​Specifically, the second embodiment of the present application provides a portable combined well diameter scale ring device, which is different from the first embodiment in that a threaded device 7 is fixedly connected to the outer surface of the upper half of the scale ring 2, the inner thread of the threaded device 7 engages with a limiting device 8, a connecting block 9 is fixedly installed on the outer surface of the lower half of the scale ring 2, and a limiting hole 10 is formed in the middle of one side of the surface of the connecting block 9.

[0045] The threaded device 7 comprises a fixed block 71, a threaded hole 72, and a limiting cavity 73, the fixed block 71 is fixedly installed on the outer surface of the upper half of the scale ring 2, the threaded hole 72 is formed in the middle of one side of the fixed block 71, and the limiting cavity 73 is formed in the middle of the inner part of the fixed block 71.

[0046] The limiting device 8 comprises a threaded rod 81, a limiting ring block 82, and an adjusting block 83, the threaded rod 81 is threadedly engaged with the inner part of the threaded hole 72, the limiting ring block 82 is fixedly installed on the outer surface of the threaded rod 81, and the adjusting block 83 is fixedly installed on one end of the threaded rod 81.

[0047] The threaded rod 81 is threadedly engaged with the inner part of the threaded hole 72, and the limiting ring block 82 is slidingly installed in the inner part of the limiting cavity 73.

[0048] The working principle of the portable combined well diameter scale ring device provided by the present application is as follows:

[0049] In operation, first, the threaded rod 81 is threadedly engaged with the threaded hole 72 and embedded in the inner part of the limiting hole 92, so as to restrict the folded upper half and lower half of the scale ring 2 together.

[0050] Compared with the related art, the portable combined well diameter scale ring device provided by the present application has the following beneficial effects:

[0051] The portable combined well diameter scale ring device provided by the present application has the following beneficial effects:

[0052] The above description is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process conversion according to the content of the specification and drawings of the present application, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A portable, modular wellbore scale ring device, characterized in that, Comprising: Threaded connecting rod, scale ring, fixed sleeve and pin shaft; The scale ring is composed of three groups of upper and lower half circular metal rings with different diameters, the upper and lower half circular metal rings of each group are connected by the pin shaft, the diameters are 100mm, 150mm and 200mm respectively, each scale ring is made of 304 stainless steel with a wall thickness of 3mm and a width of 20mm, the top center of the three upper half rings has a screw hole for the threaded connecting rod to rotate in and out, and the center of the three lower half rings has a screw hole at two positions for the threaded connecting rod to rotate in and out.

2. A portable combined caliper scale ring apparatus as defined in claim 1, wherein, The fixed sleeve is made of 304 stainless steel with a wall thickness of 3mm and a width of 20mm, an inner diameter of 80mm, a slot in the top center to the side for the threaded connecting rod to rotate, and screw holes at two positions in the lower center for the threaded connecting rod to rotate in and out.

3. A portable modular caliper ring device according to claim 1, wherein, The pin shaft is located at the contact part of the upper half ring and the lower half ring on one side, which can realize the folding of the upper half ring along one side to the lower half ring.

4. The portable combination caliper ring device of claim 1, wherein, The outer surface of the scale ring of the upper half ring is fixedly connected with a threaded device, the internal threads of the threaded device are engaged with a limiting device, the outer surface of the scale ring of the lower half ring is fixedly installed with a connecting block, and a limiting hole is opened in the middle of one side of the surface of the connecting block.

5. A portable modular caliper ring device according to claim 4, wherein, The threaded device includes a fixed block, a threaded hole and a limiting cavity, the fixed block is fixedly installed on the outer surface of the scale ring of the upper half ring, the threaded hole is opened in the middle of one side of the fixed block, and the limiting cavity is opened in the middle of the inside of the fixed block.

6. A portable modular caliper ring device according to claim 5, wherein, The limiting device includes a threaded rod, a limiting ring block and an adjusting block, the threaded rod is threadedly engaged in the inside of the threaded hole, the limiting ring block is fixedly installed on the outer surface of the threaded rod, and the adjusting block is fixedly installed on one end of the threaded rod.

7. A portable modular caliper ring device according to claim 6, wherein, The threaded rod is threadedly engaged in the inside of the threaded hole, and the limiting ring block is slidingly installed in the inside of the limiting cavity.

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