MWD angular difference measuring tool for petroleum drilling

Abstract

An MWD angular difference measuring tool for petroleum drilling is characterized in that the MWD angular difference measuring tool comprises a box body, a box cover, an operation groove, a storage groove, a sliding groove, a limiting groove, a limiting rod, a screwing bolt, a lock catch and a handle, the box cover is arranged on the box body, the operation groove is formed in the box body, the storage groove is formed in the box body, the sliding groove is formed in the storage groove, the limiting groove is formed beside the sliding groove, and the limiting rod is arranged in the limiting groove. A limiting groove is formed in the box body, a limiting rod is arranged in the limiting groove, a screwing bolt is arranged on the limiting rod, a lock catch is arranged on the box body, and a handle is arranged on the box body; the screw drill is taken down from the operation groove, the MWD angular difference measuring tool is placed in the storage groove, then the limiting rod is inserted into the sliding groove and moves inwards into the limiting groove after reaching the bottom of the sliding groove, then the screwing bolt penetrates through the storage groove to abut against the limiting rod, the limiting rod is pressed downwards, the MWD angular difference measuring tool is fixed and limited, and storage is convenient. Abrasion of a measuring tool is reduced, and follow-up use and measurement are more accurate.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling measurement tools, and in particular to an MWD angle difference measurement tool for oil drilling. Background Technology

[0002] In directional drilling operations in oil, the angle difference measurement tool of the measurement while drilling (MWD) system is the core equipment for controlling the accuracy of the wellbore trajectory. It calculates the angular deviation (angle difference) between the actual drilling direction and the designed trajectory by measuring the tool face angle (TFA) and inclination of the drill string in real time.

[0003] Existing patent CN210948636U describes a drill string height measuring ruler and an MWD angle difference measuring tool for oil drilling. It includes a calibration head and a flexible ruler. The calibration head has a vertical through-hole for the flexible ruler to pass through. The right end of the flexible ruler is fixedly connected to the calibration head on the left side of the through-hole. The flexible ruler has graduations that increase sequentially from right to left. The calibration head has a zero-gradient extension line aligned with the zero graduation on the flexible ruler. This invention has a reasonable and compact structure, is easy to use, and allows the ruler to fit more closely to the drill string, reducing measurement errors. Furthermore, after measuring the height of the drill string, it is easy to mark the measurement distance of the screw drill string and the position of the orientation key of the orientation joint on the ruler. After measurement, the ruler can be easily removed as a whole, preserving the initial height measurement data for future data review.

[0004] However, existing angle difference measurement tools are inconvenient to store during use, leading to wear and tear on the tools and reducing the accuracy of subsequent measurements. To solve the above problems, an MWD angle difference measurement tool for oil drilling is proposed. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides an MWD angle difference measuring tool for oil drilling, characterized by comprising a housing, a cover, an operating groove, a storage groove, a sliding groove, a limiting groove, a limiting rod, a tightening bolt, a lock, and a handle. The housing is provided with a cover, an operating groove, a storage groove, a sliding groove, a limiting groove beside the sliding groove, a limiting rod within the limiting groove, a tightening bolt on the limiting rod, a lock, and a handle.

[0006] Furthermore, the box body and the box cover are connected by a pivot and fixed by a latch, and the operating groove has threads;

[0007] Furthermore, the storage slot has two sets of sliding grooves, each set having two sliding grooves, which are arranged opposite each other on both sides of the storage slot. Each sliding groove has a limiting groove on its inner side. The height of the sliding groove is flush with the height of the storage slot, and the height of the limiting groove is half the height of the storage slot. Each set of sliding grooves has a limiting rod in the two limiting grooves. Each end of the limiting rod has a tightening bolt. The upper end of the tightening bolt passes through the limiting groove and extends to the upper end of the storage slot, and is connected to the storage slot by a thread.

[0008] The beneficial effects of this utility model are:

[0009] This invention involves removing the MWD angle difference measuring tool from the storage slot, inserting the screw drill bit to be measured into the operating slot via a thread, measuring the screw drill bit using the MWD angle difference measuring tool, removing the screw drill bit from the operating slot after measurement, placing the MWD angle difference measuring tool back into the storage slot, inserting the limiting rod into the slide groove, moving it inward into the limiting groove after it reaches the bottom of the slide groove, and then tightening the bolt through the storage groove against the limiting rod, pressing the limiting rod downward to fix and limit the MWD angle difference measuring tool, facilitating storage, reducing wear on the measuring tool, and making subsequent measurements more accurate. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the MWD angle difference measuring tool for oil drilling of this utility model;

[0011] Figure 2 This is a schematic diagram of the internal structure of the MWD angle difference measuring tool for oil drilling of this utility model;

[0012] As shown in the figure: 1. Box body; 2. Box lid; 3. Operating slot; 4. Storage slot; 5. Slide groove; 6. Limiting slot; 7. Limiting rod; 8. Tightening bolt; 9. Lock; 10. Handle. Detailed Implementation

[0013] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Example 1

[0016] This utility model provides an MWD angle difference measuring tool for oil drilling, characterized by comprising a housing 1, a housing cover 2, an operating groove 3, a storage groove 4, a sliding groove 5, a limiting groove 6, a limiting rod 7, a tightening bolt 8, a lock 9, and a handle 10. The housing cover 2 is provided on the housing 1, the operating groove 3 is provided on the housing 1, the storage groove 4 is provided on the housing 1, the sliding groove 5 is provided on the storage groove 4, the limiting groove 6 is provided next to the sliding groove 5, the limiting groove 6 is provided with the limiting rod 7, the tightening bolt 8 is provided on the limiting rod 7, the lock 9 is provided on the housing 1, and the handle 10 is provided on the housing 1.

[0017] Furthermore, the box body 1 and the box cover 2 are connected by a pivot and fixed by a latch 9, and the operating groove 3 has threads.

[0018] Furthermore, there are two sets of sliding grooves 5 inside the storage slot 4, with two sliding grooves in each set, which are arranged opposite each other on both sides of the storage slot 4. A limiting groove 6 is provided inside each sliding groove 5. The height of the sliding groove 5 is flush with the height of the storage slot 4, and the height of the limiting groove 6 is half the height of the storage slot 4. There is a limiting rod 7 in the two limiting grooves 6 corresponding to each set of sliding grooves 5. There is a tightening bolt 8 at each end of the limiting rod 7. The upper end of the tightening bolt 8 passes through the limiting groove 6 and extends to the upper end of the storage slot 4, and is connected to the storage slot 4 by a thread. Example 2

[0019] When using the tool, open the cover 2, take out the MWD angle difference measuring tool from the storage slot 4, insert the screw drill to be tested into the operating slot 3 through the thread, and use the MWD angle difference measuring tool to measure the screw drill. After the measurement is completed, remove the screw drill from the operating slot 3 and put the MWD angle difference measuring tool into the storage slot 4. Then insert the limiting rod 7 into the slide groove 5. After reaching the bottom of the slide groove 5, move it inward into the limiting groove 6. Then tighten the bolt 8 through the storage slot 4 and press it against the limiting rod 7 to press the limiting rod 7 downward and fix the MWD angle difference measuring tool in place.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A MWD angle difference measuring tool for oil drilling, characterized in that, The device includes a box body, a box lid, an operating slot, a storage slot, a sliding groove, a limiting slot, a limiting rod, a tightening bolt, a latch, and a handle. The box body is provided with a box lid, an operating slot, a storage slot, a sliding groove, a limiting slot next to the sliding groove, a limiting rod, a tightening bolt, a latch, and a handle.

2. The MWD angle difference measuring tool for oil drilling according to claim 1, characterized in that, The box body and the box cover are connected by a pivot and fixed by a latch, and the operating groove has threads.

3. The MWD angle difference measuring tool for oil drilling according to claim 1, characterized in that, The storage slot has two sets of sliding grooves, two in each set, which are arranged opposite each other on both sides of the storage slot. Each sliding groove has a limiting groove on its inner side. The height of the sliding groove is the same as the height of the storage slot, and the height of the limiting groove is half the height of the storage slot. There is a limiting rod in the two limiting grooves corresponding to each set of sliding grooves. There is a tightening bolt at each end of the limiting rod. The upper end of the tightening bolt passes through the limiting groove and extends to the upper end of the storage slot, and is connected to the storage slot by a thread.

Images