Downhole while-drilling gas logging testing device

Abstract

The utility model discloses an underground while-drilling gas logging testing device, which relates to the technical field of oil-gas exploration and comprises a mounting shell, a mounting seat fixed on the inner side of the top end of the mounting shell through a support column and a guide block positioned on the inner side of the bottom end of the mounting shell, the current collection detection assembly is arranged in the mounting shell; the positioning assembly is arranged on the guide block; the flow collection detection assembly comprises a connecting column, an integrated detection part, an external thread circular ring, an internal thread sleeve and a flow collection cover; the positioning assembly comprises a locking screw rod, an abutting screw rod, an abutting strip plate, an assembling sleeve, a limiting circular ring and a mounting circular ring. According to the utility model, the internal thread sleeve is rotated so that the internal thread sleeve is assembled on the external thread circular ring outside the first threaded hole in a threaded manner, the flow collecting cover in the shape of the hollow circular truncated cone is assembled and fixed to the outer side of the integrated detection part to guide gas to be in concentrated contact with the integrated detection part, and the equipment is simple and convenient to disassemble and assemble the flow collecting detection part.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil and gas exploration technical field especially relates to a downhole drilling gas logging testing device. BACKGROUND

[0002] Gas logging is the gas carried by drilling fluid returning from the bottom of the well can be obtained from the degassing device placed in front of the vibrating screen, and its composition and content are detected and recorded to determine the oil and gas layer, gas logging is a logging method for directly measuring the content of combustible gas in drilling fluid, and the detection of harmful gas in the drilling process of underground oil well needs to use special tools for detection and recording, which is convenient for drilling personnel to quickly identify oil and gas and eliminate the lag and interference of oil and gas return.

[0003] Disclosed (announced) No. CN216974825U discloses a downhole drilling gas logging testing device, which comprises: a mounting shell, a mounting rod is installed on the upper end of the mounting shell, and a mounting seat is fixed to the inner end of the mounting rod, a gas collecting mechanism is arranged on the lower side of the mounting seat, and an integrated detection mechanism for detection is arranged on the lower side of the mounting seat; a connecting shell is installed on the lower end of the mounting shell, and a positioning mechanism is arranged on the inner side of the connecting shell; a mounting ring is installed on the lower side of the positioning mechanism, and a preliminary filter screen, an activated carbon adsorption layer and a waterproof filter membrane are installed on the inner side of the mounting ring from bottom to top; a supporting rod is installed on the lower end of the connecting shell, and a guide block is installed on the lower end of the supporting rod. The downhole drilling gas logging testing device can intake a large amount of gas, ensure sufficient gas intake, and facilitate replacement of different amounts of filter screens according to requirements.

[0004] Although the above-mentioned scheme can intake a large amount of gas and facilitate replacement of different amounts of filter screens according to requirements, the gas collecting component and the guide filter piece need to be fixed one by one at multiple points, and the device is troublesome to disassemble and assemble, therefore, we propose a downhole drilling gas logging testing device. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a downhole drilling gas logging testing device, which solves the problem of troublesome disassembly and assembly of the device by setting the flow collecting and detecting assembly and the positioning assembly.

[0006] To solve the above technical problems, the utility model is realized by the following technical scheme: a downhole drilling gas logging testing device, which comprises a mounting shell, a mounting seat fixed to the top end inner side of the mounting shell through a supporting column, and a guide block located at the bottom end inner side of the mounting shell, and further comprises: a flow collecting and detecting assembly arranged in the mounting shell and a positioning assembly arranged on the guide block.

[0007] The current collection detection assembly includes a connecting column, an integrated detection component, an external thread ring, an internal thread sleeve, and a current collection cover. A first threaded hole is formed in the center of the bottom surface of the mounting seat. The connecting column is threaded assembled on the first threaded hole. The integrated detection component is fixedly arranged at the bottom end of the connecting column. The external thread ring is fixedly arranged on the bottom surface of the mounting seat and located outside the first threaded hole. The internal thread sleeve is threaded assembled on the outer peripheral surface of the external thread ring. The current collection cover is in a hollow circular truncated cone shape and is fixedly arranged at the bottom end of the internal thread sleeve. The integrated detection component is internally mounted with an air pressure detector and a temperature detector.

[0008] The positioning assembly includes a locking screw rod, a pressing screw rod, a pressing strip plate, a connecting sleeve, a limiting ring, and a mounting ring. A second threaded hole is formed in the bottom surface of the mounting shell. The locking screw rod is threaded assembled on the second threaded hole and movably penetrates a guide block in a circular truncated cone shape. A receiving groove is formed in the bottom surface of the guide block. The pressing screw rod is threaded assembled at the center of the groove wall at the bottom end of the receiving groove. The pressing strip plate is placed in the mounting shell and located above the pressing screw rod. The connecting sleeve is fixedly arranged at the center of the bottom surface of the pressing strip plate and is threaded connected with the pressing screw rod. The limiting ring is fixedly arranged on the inner wall of the curved surface at the middle end of the mounting shell and located above the pressing strip plate. The mounting rings are placed between the limiting ring and the pressing strip plate.

[0009] Preferably, the connecting column, the external thread ring, the internal thread sleeve, and the current collection cover are located on the vertical central axis of the mounting shell.

[0010] Preferably, the bottom surface of the current collection cover is fixedly arranged with a plurality of dialing blocks arranged in an equidistant circumferential array.

[0011] Preferably, the inner walls of the mounting rings are respectively mounted with a filter screen, an activated carbon plate, and waterproof filter cotton.

[0012] Preferably, the locking screw rod is provided with two and symmetrically arranged on the slope surface of the guide block. The positioning holes are one-to-one corresponding to the locking screw rods.

[0013] Preferably, the pressing screw rod and the locking screw rod are arranged in parallel with each other.

[0014] Compared with the prior art, the downhole drilling gas logging testing device has the following beneficial effects:

[0015] 1. The utility model discloses a set of flow detection components are set up, and the positioning assembly is assembled to the bottom end inside of the installation shell before the guide block is assembled, can rotate the connecting column and screw it to the first threaded hole in the center of the bottom surface of the mounting seat, and the integrated detection component fixed in the bottom end of the connecting column completes the assembly, rotates the internal thread sleeve and makes it screw on the external thread ring outside the first threaded hole, and the hollow circular platform-shaped flow collecting cover is assembled and fixed to the outside of the integrated detection component to guide the gas to contact the integrated detection component, and the equipment is convenient to disassemble and assemble to the flow detection component.

[0016] 2. The utility model discloses a positioning assembly is set up, and the installation ring of a plurality of filtering pieces can be put into the inside of the installation shell and reach below the limiting ring, and the abutting strip is placed below the installation ring, and the locking screw rod of movable penetration guide block is assembled to the second threaded hole on the bottom surface of the installation shell and can assemble the guide block to the bottom end inside of the installation shell, and the abutting screw rod on the guide block is rotated and adjusted, and the abutting screw rod can enter the sleeve and drive the abutting strip to abut and fix all installation rings below the limiting ring, and the guide filter piece can be taken away from the guide block, the abutting strip and the installation ring in turn after rotating and separating the locking screw rod, and the equipment is convenient to disassemble and assemble to the guide filter piece. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced to the drawings needed to be used in the embodiment, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can be obtained according to these drawings without creating creative labor.

[0018] Figure 1 It is the whole structure schematic diagram of the utility model downhole drilling gas logging test device;

[0019] Figure 2 It is the overhead structure schematic diagram of the utility model downhole drilling gas logging test device;

[0020] Figure 3 It is the utility model Figure 2 A-A section structure schematic diagram in the utility model;

[0021] Figure 4 It is the utility model Figure 2 B-B section structure schematic diagram in the utility model.

[0022] In the drawings, the component list represented by each sign is as follows:

[0023] 1, installation shell;

[0024] 2, mounting seat;

[0025] 3. Guide block;

[0026] 4. Current collection and detection assembly; 401. Connecting post; 402. Integrated detection component; 403. External threaded ring; 404. Internal threaded sleeve; 405. Current collection cover;

[0027] 5. Positioning assembly; 501. Locking screw; 502. Clamping screw; 503. Clamping strip; 504. Assembly sleeve; 505. Limiting ring; 506. Mounting ring;

[0028] 6. Toggle block. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0032] Example 1

[0033] like Figure 1 , Figure 2 as well as Figure 3 As shown, a downhole gas logging test device includes a mounting shell 1, a mounting base 2 fixed to the inner side of the top of the mounting shell 1 by a support column, and a guide block 3 located on the inner side of the bottom of the mounting shell 1. It also includes a flow collection and detection component 4 disposed inside the mounting shell 1 and a positioning component 5 disposed on the guide block 3.

[0034] The current collection and detection assembly 4 includes a connecting post 401, an integrated detection component 402, an external threaded ring 403, an internal threaded sleeve 404, and a current collection cover 405. A first threaded hole is provided at the center of the bottom surface of the mounting base 2. The connecting post 401 is threadedly assembled on the first threaded hole. The integrated detection component 402 is fixedly disposed at the bottom end of the connecting post 401. The external threaded ring 403 is fixedly disposed on the bottom surface of the mounting base 2 and located outside the first threaded hole. The internal threaded sleeve 404 is threadedly assembled on the outer circumferential surface of the external threaded ring 403. The current collection cover 405 is in the shape of a hollow frustum and is fixedly disposed at the bottom end of the internal threaded sleeve 404.

[0035] The positioning component 5 includes a locking screw 501, a clamping screw 502, a clamping strip 503, a connecting sleeve 504, a limiting ring 505, and a mounting ring 506. The bottom surface of the mounting housing 1 has a second threaded hole. The locking screw 501 is threaded onto the second threaded hole and movably passes through a frustum-shaped guide block 3. The bottom surface of the guide block 3 has a receiving groove. The clamping screw 502 is threaded onto the center of the bottom wall of the receiving groove. The clamping strip 503 is placed inside the mounting housing 1 and located at the top of the clamping screw 502. The connecting sleeve 504 is fixedly set at the center of the bottom surface of the clamping strip 503 and threadedly connected to the clamping screw 502. The limiting ring 505 is fixedly set on the inner wall of the curved surface in the middle of the mounting housing 1 and located above the clamping strip 503. Several mounting rings 506 are placed between the limiting ring 505 and the clamping strip 503.

[0036] Furthermore, the connecting post 401, the external threaded ring 403, the internal threaded sleeve 404, and the flow collector 405 are all located on the vertical central axis of the mounting housing 1.

[0037] Furthermore, a number of actuating blocks 6 arranged in an equidistant circular array are fixedly provided on the bottom surface of the flow collector 405.

[0038] Furthermore, filter screens, activated carbon plates, and waterproof filter cotton are respectively installed on the inner walls of several mounting rings 506.

[0039] Furthermore, there are two locking screws 501, which are symmetrically arranged on the slope of the guide block 3, and the positioning holes are arranged in a one-to-one correspondence with the locking screws 501.

[0040] Furthermore, the clamping screw 502 and the locking screw 501 are arranged parallel to each other.

[0041] The current collection and detection component 4 makes it easy to disassemble and assemble the current collection and detection components.

[0042] Example 2

[0043] like Figure 1 , Figure 2 as well as Figure 4As shown, a downhole gas logging test device includes a mounting shell 1, a mounting base 2 fixed to the inner side of the top of the mounting shell 1 by a support column, and a guide block 3 located on the inner side of the bottom of the mounting shell 1. It also includes a flow collection and detection component 4 disposed inside the mounting shell 1 and a positioning component 5 disposed on the guide block 3.

[0044] The current collection and detection assembly 4 includes a connecting post 401, an integrated detection component 402, an external threaded ring 403, an internal threaded sleeve 404, and a current collection cover 405. A first threaded hole is provided at the center of the bottom surface of the mounting base 2. The connecting post 401 is threadedly assembled on the first threaded hole. The integrated detection component 402 is fixedly disposed at the bottom end of the connecting post 401. The external threaded ring 403 is fixedly disposed on the bottom surface of the mounting base 2 and located outside the first threaded hole. The internal threaded sleeve 404 is threadedly assembled on the outer circumferential surface of the external threaded ring 403. The current collection cover 405 is in the shape of a hollow frustum and is fixedly disposed at the bottom end of the internal threaded sleeve 404.

[0045] The positioning component 5 includes a locking screw 501, a clamping screw 502, a clamping strip 503, a connecting sleeve 504, a limiting ring 505, and a mounting ring 506. The bottom surface of the mounting housing 1 has a second threaded hole. The locking screw 501 is threaded onto the second threaded hole and movably passes through a frustum-shaped guide block 3. The bottom surface of the guide block 3 has a receiving groove. The clamping screw 502 is threaded onto the center of the bottom wall of the receiving groove. The clamping strip 503 is placed inside the mounting housing 1 and located at the top of the clamping screw 502. The connecting sleeve 504 is fixedly set at the center of the bottom surface of the clamping strip 503 and threadedly connected to the clamping screw 502. The limiting ring 505 is fixedly set on the inner wall of the curved surface in the middle of the mounting housing 1 and located above the clamping strip 503. Several mounting rings 506 are placed between the limiting ring 505 and the clamping strip 503.

[0046] Furthermore, the connecting post 401, the external threaded ring 403, the internal threaded sleeve 404, and the flow collector 405 are all located on the vertical central axis of the mounting housing 1.

[0047] Furthermore, a number of actuating blocks 6 arranged in an equidistant circular array are fixedly provided on the bottom surface of the flow collector 405.

[0048] Furthermore, filter screens, activated carbon plates, and waterproof filter cotton are respectively installed on the inner walls of several mounting rings 506.

[0049] Furthermore, there are two locking screws 501, which are symmetrically arranged on the slope of the guide block 3, and the positioning holes are arranged in a one-to-one correspondence with the locking screws 501.

[0050] Furthermore, the clamping screw 502 and the locking screw 501 are arranged parallel to each other.

[0051] The positioning component 5 makes it easy to install and remove the guide filter element.

[0052] The working principle of this utility model is as follows:

[0053] Rotate the connecting column 401 to thread it onto the first threaded hole at the center of the bottom surface of the mounting base 2. The integrated detection component 402, fixed to the bottom end of the connecting column 401, is then assembled. Rotate the internal threaded sleeve 404 to thread it onto the external threaded ring 403 located outside the first threaded hole. The hollow frustum-shaped flow collector 405 is then assembled and fixed to the outside of the integrated detection component 402 to guide the gas to concentrate and contact the integrated detection component 402. Several mounting rings 506 equipped with filters are placed inside the mounting housing 1 and reach the lower limit ring 505. Place the clamping strip 503 below the mounting ring 506. Rotate the locking screw 501 that passes through the guide block 3 to assemble it onto the second threaded hole on the bottom surface of the mounting housing 1. Assemble the guide block 3 onto the inner side of the bottom end of the mounting housing 1. Rotate and adjust the clamping screw 502 on the guide block 3. The clamping screw 502 moves upward into the assembly sleeve 504 and drives the clamping strip 503 to clamp and fix all the mounting rings 506 below the limiting ring 505. Rotate and remove the locking screw 501, and then remove the guide block 3, clamping strip 503 and mounting ring 506 in sequence.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. 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 downhole gas logging and testing device, comprising a mounting housing (1), a mounting base (2) fixed to the inner side of the top of the mounting housing (1) by a support column, and a guide block (3) located on the inner side of the bottom of the mounting housing (1), characterized in that, Also includes: A current collection detection component (4) is disposed inside the mounting housing (1), and a positioning component (5) is disposed on the guide block (3); The current collection and detection assembly (4) includes a connecting post (401), an integrated detection component (402), an external threaded ring (403), an internal threaded sleeve (404), and a current collection cover (405). A first threaded hole is provided at the center of the bottom surface of the mounting base (2). The connecting post (401) is threadedly assembled on the first threaded hole. The integrated detection component (402) is fixedly disposed at the bottom end of the connecting post (401). The external threaded ring (403) is fixedly disposed on the bottom surface of the mounting base (2) and located outside the first threaded hole. The internal threaded sleeve (404) is threadedly assembled on the outer circumferential surface of the external threaded ring (403). The current collection cover (405) is in the shape of a hollow frustum and is fixedly disposed at the bottom end of the internal threaded sleeve (404). The positioning component (5) includes a locking screw (501), a clamping screw (502), a clamping strip (503), a connecting sleeve (504), a limiting ring (505), and a mounting ring (506). The bottom surface of the mounting housing (1) has a second threaded hole. The locking screw (501) is threaded onto the second threaded hole and movably passes through a frustum-shaped guide block (3). The bottom surface of the guide block (3) has a receiving groove. The clamping screw (502) is threaded onto the bottom end of the receiving groove. At the center of the groove wall, the clamping strip (503) is placed inside the mounting housing (1) and located at the top of the clamping screw (502). The connecting sleeve (504) is fixedly set at the center of the bottom surface of the clamping strip (503) and threadedly connected to the clamping screw (502). The limiting ring (505) is fixedly set on the inner wall of the curved surface in the middle of the mounting housing (1) and located above the clamping strip (503). Several mounting rings (506) are placed between the limiting ring (505) and the clamping strip (503).

2. The downhole gas logging and testing device according to claim 1, characterized in that: The connecting post (401), the external threaded ring (403), the internal threaded sleeve (404), and the flow collector (405) are all located on the vertical central axis of the mounting housing (1).

3. The downhole gas logging and testing device according to claim 1, characterized in that: The bottom surface of the flow collector (405) is fixedly provided with a number of toggle blocks (6) arranged in an equidistant circular array.

4. The downhole gas logging and testing device according to claim 1, characterized in that: A filter screen, an activated carbon plate, and a waterproof filter cotton are respectively installed on the inner wall of several of the mounting rings (506).

5. The downhole gas logging and testing device according to claim 1, characterized in that: Two locking screws (501) are provided and are symmetrically arranged on the slope of the guide block (3). The positioning holes are arranged in a one-to-one correspondence with the locking screws (501).

6. The downhole gas logging and testing device according to claim 1, characterized in that: The clamping screw (502) and the locking screw (501) are arranged parallel to each other.

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