CN218787779U

CN218787779U - Zero setting device for sealing surface diameter gauge of special threads of shale oil-gas well casing

Info

Publication number: CN218787779U
Application number: CN202223359304.6U
Authority: CN
Inventors: 吉楠; 王鹏; 杨尚谕
Original assignee: China Petroleum Engineering Materials Research Institute Co ltd; China National Petroleum Corp
Current assignee: China Petroleum Engineering Materials Research Institute Co ltd; China National Petroleum Corp
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-04-04
Anticipated expiration: 2032-12-12

Abstract

The utility model discloses a zero setting device for a sealing surface diameter gauge of special threads of a shale oil-gas well casing, which comprises a sealing diameter gauge block and a base; the top surface of the sealing diameter gauge block is provided with a first bulge and a second bulge, the first bulge and the second bulge are both provided with a sealing diameter measuring surface and a gauge placing surface, the sealing diameter measuring surface is in contact with a measuring head of a sealing surface diameter gauge, and a gauge supporting frame is placed on the gauge placing surface. The utility model discloses simple structure, convenient operation, what can stabilize will seal the diameter gage block and fix on sealed face diameter gauge, realize the zero setting of sealed face diameter gauge fast to improve the sealed face diameter measuring efficiency and the accuracy of special screw thread.

Description

Zero setting device for sealing surface diameter gauge of special threads of shale oil and gas well casing

Technical Field

The utility model belongs to the experimental inspection field of oil pipe screw thread, especially a sealed face diameter gauge zero-setting device of special screw thread of shale oil gas well sleeve pipe.

Background

With the progress of the times and the continuous rise of the living standard of people, the specific gravity of natural gas in an energy consumption structure is continuously increased, and the development of the traditional oil-gas field cannot meet the increasing energy demand. Because the shale gas reservoir has the characteristics of deep reservoir, high formation pressure, complex natural cracks and the like, and meanwhile, the shale gas well has the characteristics of long horizontal section, high fracturing operation pressure, long operation period and the like, the stress of the pipe column is complex, the pipe is required to have high performance, the performance of the thread is also required to be strict, and the thread joint is required to have high tensile resistance, compression resistance, over-torque resistance and the like. Therefore, the traditional API oil casing thread can not meet the underground working condition requirement, and a non-API special threaded joint suitable for the use working condition of the shale gas well must be selected.

Standard API thread parameters are generally composed of factors such as tooth height, taper, pitch, diameter, standoff, and the like. The special thread is additionally provided with a sealing structure, generally, metal-to-metal interference sealing is mostly adopted as main sealing, and a torque shoulder is adopted as an auxiliary sealing structure. The matching grade of the sealing capacity of the special threads is realized by different sealing diameter tolerances, so that the control of the size of the sealing surface is the key for ensuring the sealing performance of the special threads. Generally, the diameter of the sealing surface of a special thread is measured by adopting a comparative measurement method: during measurement, the pointer of the measuring meter is zeroed on a standard rod by using the diameter gauge of the sealing surface, then the diameter of the sealing surface of the thread to be measured is measured, and the deviation between the measured diameter of the sealing surface and the standard value is compared according to the deflection condition of the pointer. However, the standard blocks with the diameter of the sealing surface are all made into a rod shape for good portability, but the standard blocks have a plurality of problems in the actual use process. The biggest problem is that the rod is not easy to fix on a plane, so that the zero setting operation is very difficult, and the efficiency and the accuracy of measurement are influenced.

Disclosure of Invention

An object of the utility model is to solve the problem among the prior art, provide a sealed face diameter gauge zero-setting device of special screw thread of shale oil gas well sleeve pipe to solve prior art and can't zero, the technical problem that measured efficiency and accuracy are low to the indicator when measuring the sealed face size of special screw thread.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

a zero setting device of a sealing surface diameter gauge for special threads of a shale oil-gas well casing comprises a sealing diameter gauge block and a base;

the top surface of the sealing diameter gauge block is provided with a first protrusion and a second protrusion, the first protrusion and the second protrusion are both provided with a sealing diameter measuring surface and a gauge placing surface, the sealing diameter measuring surface is in contact with a measuring head of a sealing surface diameter gauge, and a gauge supporting frame is placed on the gauge placing surface.

Further, the seal diameter measuring surface of the first protrusion is a seal diameter measuring slave surface, and the seal diameter measuring slave surface is in contact with the gauge fixing probe.

Further, the gauge placing surface of the first protrusion is a gauge fixing surface, and one end of a gauge support frame is placed on the gauge fixing surface.

Further, the seal diameter measuring surface of the second protrusion is a seal diameter measuring main surface, and the seal diameter measuring main surface is in contact with the gauge movable measuring head.

Further, the gauge placing surface of the second protrusion is a gauge moving surface, the other end of the gauge supporting frame is placed on the gauge moving surface, and a gauge indicating meter is installed at the other end of the gauge supporting frame.

Further, a concave surface between the first protrusion and the second protrusion is a standard surface, and the standard surface is perpendicular to the sealing diameter measuring surface.

Furthermore, the two side surfaces of the sealing diameter gauge block are provided with middle diameter measuring surfaces.

Furthermore, a groove is formed in the base, and the bottom surface of the sealing diameter standard block is placed in the groove.

Furthermore, a first fastening bolt and a second fastening bolt are installed on two sides of the groove, and two sides of the sealing diameter standard block are clamped through the first fastening bolt and the second fastening bolt.

Furthermore, the sealing diameter measuring surface, the gauge placing surface, the standard surface, the middle diameter measuring surface and the bottom surface of the sealing diameter gauge block are all made of solid alloy steel materials through one-time milling forming.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a sealed face diameter gauge zero-setting device of special screw thread of shale oil gas well sleeve pipe, through set up two archs on sealed diameter gauge block, sealed diameter measurement face and the contact of the gauge head of sealed face diameter gauge on the arch will seal the diameter gauge block and fix on the base to the contact position that gauge fixed gauge head and sealed face diameter measurement follow face is the fulcrum, makes gauge activity gauge head do the circular motion of small range on sealed diameter measurement owner face, thereby realizes the zero-setting of sealed face diameter gauge. The utility model discloses simple structure, convenient operation, what can stabilize will seal the diameter gage block and fix on sealed face diameter gauge, realize the zero setting of sealed face diameter gauge fast to improve the sealed face diameter measuring efficiency and the accuracy of special screw thread.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is the schematic view of the zero setting device of the seal diameter gauge for the special thread of the shale oil-gas well casing of the utility model.

Wherein: 1-seal diameter measurement slave surface, 2-seal diameter measurement main surface, 3-first fastening bolt, 4-second fastening bolt, 5-gauge movable surface, 6-gauge fixed surface, 7-standard surface, 8-bottom surface, 9-base, 10-gauge movable probe, 11-gauge fixed probe, 12-gauge fastening bolt, 13-gauge support frame, 14-gauge indicator, 15-gauge handle and 16-slider.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "horizontal", "inner", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings:

referring to fig. 1, the utility model provides a sealed face diameter gauge zero set device of special screw thread of shale oil gas well sleeve pipe, including sealed diameter gauge block and fixing device, be provided with sealed diameter measurement face, well footpath measurement face, gauge on the sealed diameter gauge block and place face, standard face 7 and bottom surface 8, sealed diameter measurement face and gauge are placed the face and are all set up in the arch of sealed diameter gauge block.

The bulge of the sealing diameter gauge block comprises a first bulge and a second bulge, a sealing diameter measuring surface and a gauge placing surface are arranged on the first bulge and the second bulge respectively, and the sealing diameter measuring surface comprises a sealing diameter measuring main surface 2 and a sealing diameter measuring slave surface 1. The seal diameter measuring face of the first projection is a seal diameter measuring slave face 1, and the seal diameter measuring slave face 1 is used for contacting with a gauge fixing probe 11. The seal diameter measuring surface of the second bulge is a seal diameter measuring main surface 2, the seal diameter measuring main surface 2 is used for being in contact with a gauge movable measuring head 10, the concave surface between the first bulge and the second bulge is a standard surface 7, and the seal diameter measuring main surface 2 and the seal diameter measuring secondary surface 1 are both perpendicular to the standard surface 7. And the two side surfaces of the sealing diameter gauge block are provided with medium diameter measuring surfaces.

The gauge placing surface comprises a gauge moving surface 5 and a gauge fixing surface 6. The gauge placing surface of the first protrusion is a gauge fixing surface 6, and a supporting frame 13 of the gauge fixing surface 6 for placing the sealing surface diameter gauge does not have one end of the gauge indicating gauge 14. The gauge placing surface of the second protrusion is a gauge moving surface 5, and the gauge moving surface 5 is used for placing one end of a supporting frame 13 of the sealing surface diameter gauge with a gauge indicating meter 14.

The fixing device comprises a base 9 and a fixing bolt. Fixing bolt includes first fastening bolt 3 and second fastening bolt 4, sets up flutedly on the base 9, is convenient for place the recess with the bottom surface 8 of sealed diameter marking piece in, and first fastening bolt 3 and second fastening bolt 4 are installed respectively in the recess both sides of base 9, use first fastening bolt 3 and the second fastening bolt 4 of base 9 both sides to press from both sides tightly.

The utility model discloses a face is placed to sealed diameter measurement face, the gauge of sealed diameter gauge block, standard face 7, the measuring face of pitch diameter and bottom surface 8 all once only mill the shaping on a solid alloy steel material.

The utility model discloses a sealed face diameter gauge zero setting method of special screw thread of shale oil and gas well sleeve pipe:

first, the bottom surface 8 is placed in the groove of the base 9, and the first fastening bolt 3 and the second fastening bolt 4 on the base 9 are tightened at the same time, so that the seal diameter gauge block is fixed in the base 9. Next, the gauge support frame 13 is placed on the gauge fixing surface 6 and the gauge moving surface 5, the gauge fastening bolt 12 is loosened, the slider 16 is moved so that the gauge moving probe 10 contacts the sealing surface diameter measurement main surface 2, the gauge fixing probe 11 contacts the sealing surface diameter measurement auxiliary surface 1, and the gauge fastening bolt 12 is tightened so that the position of the sealing surface diameter gauge is fixed. Finally, the contact position between the gauge fixed measuring head 11 and the sealing surface diameter measuring slave surface 1 is kept unchanged, the gauge handle 15 is held to make circular motion, so that the sealing surface diameter gauge takes the contact position between the gauge fixed measuring head 11 and the sealing surface diameter measuring slave surface 1 as a fulcrum, and the gauge movable measuring head 10 makes small-range circular motion on the sealing diameter measuring main surface 2. Meanwhile, the pointer on the gauge indicating gauge 14 can be deflected, the dial is continuously rotated, so that the dial is locked after the pointer stops at the position with the scale of 0, and the zero setting of the diameter gauge of the sealing surface is finished.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A zero setting device of a sealing surface diameter gauge for special threads of a shale oil-gas well casing is characterized by comprising a sealing diameter gauge block and a base (9);

the top surface of the sealing diameter gauge block is provided with a first bulge and a second bulge, the first bulge and the second bulge are both provided with a sealing diameter measuring surface and a gauge placing surface, the sealing diameter measuring surface is in contact with a measuring head of a sealing surface diameter gauge, and a gauge supporting frame (13) is placed on the gauge placing surface.

2. The zero setting device of the seal surface diameter gauge of the special thread of the shale oil and gas well casing as claimed in claim 1, characterized in that the seal diameter measuring surface of the first bulge is a seal diameter measuring slave surface (1), and the seal diameter measuring slave surface (1) is contacted with the gauge fixing measuring head (11).

3. The device for zero setting of a sealing surface diameter gauge of a special thread of a shale oil and gas well casing according to claim 1, characterized in that the gauge placing surface of the first protrusion is a gauge fixing surface (6), and one end of a gauge support frame (13) is placed on the gauge fixing surface (6).

4. The zero setting device of a seal face diameter gauge for a special thread of a shale oil and gas well casing according to claim 1, characterized in that the seal diameter measuring face of the second projection is a seal diameter measuring main face (2), and the seal diameter measuring main face (2) is in contact with a gauge movable probe (10).

5. The device for zero setting of the sealing surface diameter gauge of the special thread of the shale oil and gas well casing as claimed in claim 1, wherein the gauge placing surface of the second protrusion is a gauge moving surface (5), the other end of a gauge support frame (13) is placed on the gauge moving surface (5), and a gauge indicator (14) is installed at the other end of the gauge support frame (13).

6. The zero setting device for the seal face diameter gauge of the special thread of the shale oil and gas well casing as claimed in claim 1, characterized in that the concave surface between the first bulge and the second bulge is a standard surface (7), and the standard surface (7) is perpendicular to the seal diameter measuring surface.

7. The zero setting device for the sealing surface diameter gauge of the special thread of the shale oil and gas well casing as claimed in claim 1, wherein the middle diameter measuring surfaces are arranged on two side surfaces of the sealing diameter gauge block.

8. The zero setting device of a sealing surface diameter gauge for special threads of shale oil and gas well casings as claimed in claim 1, characterized in that the base (9) is provided with a groove, and the bottom surface (8) of the sealing diameter gauge block is placed in the groove.

9. The zero setting device for the seal face diameter gauge of the special thread of the shale oil and gas well casing according to claim 8, characterized in that a first fastening bolt (3) and a second fastening bolt (4) are installed on two sides of the groove, and the two sides of the seal diameter gauge block are clamped through the first fastening bolt (3) and the second fastening bolt (4).

10. The zero setting device for the sealing surface diameter gauge of the special thread of the shale oil and gas well casing as claimed in claim 1, characterized in that the sealing diameter measuring surface, the gauge placing surface, the standard surface, the middle diameter measuring surface and the bottom surface (8) of the sealing diameter gauge block are all made of solid alloy steel materials through one-time milling forming.