Drilling fluid sampling device for petroleum and natural gas logging

Abstract

The utility model discloses a drilling fluid sampling device for petroleum and natural gas logging, and relates to the technical field of drilling fluid sampling. The device comprises a frame body, a transverse pipe is arranged above the frame body, a liquid inlet branch pipe is fixedly arranged at the top of the transverse pipe, a liquid conveying pipe is connected to the front end of the liquid inlet branch pipe in a threaded and screwed mode, a filter screen is arranged in the liquid conveying pipe, and four liquid outlet branch pipes are arranged at the bottom of the transverse pipe in the axial direction of the transverse pipe. The lower ends of the four liquid outlet branch pipes are fixed to the top of the frame in a penetrating mode, and hand valves are fixedly connected to the liquid outlet branch pipes above the frame in a sleeving mode. According to the utility model, the liquid outlet branch pipes are respectively arranged above the four drilling fluid sample storage bottles, the hand valves are sleeved and fixed on the liquid outlet branch pipes, and drilling fluid samples can be injected into the four drilling fluid sample storage bottles one by one by controlling the hand valves on the four transverse pipes to be opened and closed in sequence from left to right; the positions of the four drilling fluid sample storage bottles do not need to be manually adjusted by personnel, so that the operation is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of drilling fluid sampling, in particular to a drilling fluid sampling device for oil and natural gas logging. Background Art

[0002] Mud logging is the process of observing, collecting, collecting, recording and analyzing the information of solid, liquid, gas and other wellbore return materials during the drilling process by using rock and mineral analysis, geophysics, geochemistry and other methods, so as to establish logging geological profiles, discover oil and gas displays, evaluate oil and gas layers, and provide drilling information services for petroleum engineering, investors, drilling engineering and other projects. After searching, the patent with application number 202322056420.9 discloses a drilling fluid sampling device for oil and gas logging, including a base and a protective shell, the top of the base is provided with an adjustment groove, the adjustment groove is provided with a bearing seat, the bearing seat is provided with an adjustment disk, the adjustment disk is provided with a storage bucket, the storage bucket is provided with multiple, a fixing column is provided at the center of the top of the adjustment disk, a positioning mechanism is provided between the protective shell and the top of the base, a filter box is provided at the top of the protective shell, an observation mechanism is provided on the protective shell, a filter mechanism is provided on the filter box, a liquid inlet pipe is provided at the top of the filter box, and a liquid outlet pipe is provided at the bottom of the filter box, and the liquid outlet pipe extends to the inside of the protective shell.

[0003] However, in actual use, the applicant found that when injecting the drilling fluid into the storage barrel, personnel need to manually rotate the adjusting shaft to drive the adjusting disk, and rotate the storage barrel placed on the top of the adjusting disk together, so that the storage barrels are moved one by one to just below the liquid outlet pipe, so that the drilling fluid can be continuously sampled. The operation is not convenient enough. In view of this, we propose a drilling fluid sampling device for oil and gas logging. Utility Model Content

[0004] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0005] The utility model discloses a drilling fluid sampling device for oil and gas logging, comprising a frame, a transverse tube is arranged above the frame, a liquid inlet branch is fixedly arranged on the top of the transverse tube, a liquid infusion tube is screwed on the front end of the liquid inlet branch, a filter is arranged inside the liquid infusion tube, a liquid outlet branch is arranged at the bottom of the transverse tube, and four liquid outlet branches are arranged along the axial direction of the transverse tube, the lower ends of the four liquid outlet branches penetrate and are fixed on the top of the frame, a hand valve is sleeved and fixed on the liquid outlet branch above the frame, a placement seat is arranged inside the frame, the tops of the placement seats below the four liquid outlet branches are provided with placement grooves, drilling fluid sample storage bottles are placed in the four placement grooves, and the bottle mouths of the drilling fluid sample storage bottles are located directly below the liquid outlet branch.

[0006] Preferably, the placement seat is movably arranged in the frame, and two sides of the placement seat slide along two sides of the interior of the frame respectively.

[0007] Preferably, a groove is formed at the bottom of the frame, and a screw is rotatably connected to the frame above the groove via a bearing.

[0008] Preferably, the front end of the screw is threaded into a threaded hole opened at the center of the bottom of the placement seat, and an adjustment handle is fixedly provided at the lower end of the screw.

[0009] Preferably, an annular sealing gasket is fixedly connected to the top of the inner side of the frame outside the liquid outlet branch pipe, and the bottle mouth of the drilling fluid sample storage bottle abuts against the annular sealing gasket.

[0010] Preferably, the filter is placed in the infusion tube, an annular sealing gasket is abutted between the front end of the liquid inlet branch and the rear end face of the filter, an internal threaded portion is provided on the inner side wall of the rear end of the infusion tube, and an external threaded portion is provided at the front end of the liquid inlet branch.

[0011] The utility model has the following beneficial effects:

[0012] The utility model discloses a drilling fluid sampling device for oil and gas logging. Liquid outlet branch pipes are respectively arranged above four drilling fluid sample storage bottles, and a fixed hand valve is sleeved on the liquid outlet branch pipe. The drilling fluid samples can be injected into the four drilling fluid sample storage bottles one by one by controlling the hand valves on the four horizontal pipes to be opened and closed in sequence from left to right. There is no need for personnel to manually adjust the positions of the four drilling fluid sample storage bottles, which is more convenient. The placement seat is driven to move upward together with the drilling fluid sample storage bottle by rotating the screw rod, and the bottle mouth of the drilling fluid sample storage bottle is made to abut against the annular sealing gasket, so that the bottle mouth of the drilling fluid sample storage bottle can be sealed, thereby effectively preventing the drilling fluid in the drilling fluid sample storage bottle from overflowing or splashing to pollute the frame during the sampling process, and can also effectively prevent the drilling fluid sample storage bottle from tipping over during the sampling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a schematic diagram of the top view of a drilling fluid sampling device for oil and gas logging according to the utility model;

[0015] Figure 2This is a schematic diagram of the structure of a drilling fluid sampling device for oil and natural gas logging according to the utility model from a bottom up view;

[0016] Figure 3 The utility model is a schematic diagram of the internal connection structure of a liquid inlet branch pipe and a liquid delivery pipe in a drilling fluid sampling device for oil and natural gas logging.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0018] 1. Frame; 11. Groove; 2. Horizontal tube; 21. Liquid inlet branch; 22. Liquid outlet branch; 3. Hand valve; 4. Liquid infusion tube; 41. Filter screen; 42. Annular sealing gasket; 5. Placement seat; 51. Placement slot; 6. Drilling fluid sample storage bottle; 7. Annular sealing gasket; 8. Screw; 81. Adjustment handle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 As shown, the utility model provides a technical solution:

[0021] Embodiment 1: A drilling fluid sampling device for oil and gas logging, comprising a frame 1, a transverse tube 2 is arranged above the frame 1, a liquid inlet branch 21 is fixedly arranged on the top of the transverse tube 2, a liquid inlet pipe 4 is screwed to the front end of the liquid inlet branch 21, the front end of the liquid inlet pipe 4 is connected to the liquid outlet end of the sampling pump through a hose, a filter screen 41 is arranged inside the liquid inlet pipe 4, the filter screen 41 is placed in the liquid inlet pipe 4, and the filter screen 41 can be taken out for cleaning or replacement after the liquid inlet pipe 4 is screwed off from the front end of the liquid inlet branch 21, and an annular sealing gasket 42 is abutted between the front end of the liquid inlet branch 21 and the rear end face of the filter screen 41, which can be used to seal the liquid inlet branch 21. The connection between the liquid branch pipe 21 and the liquid infusion pipe 4 is sealed, an internal threaded portion is provided on the inner side wall at the rear end of the liquid infusion pipe 4, and an external threaded portion is provided at the front end of the liquid inlet branch pipe 21. A liquid outlet branch pipe 22 is provided at the bottom of the transverse tube 2, and four liquid outlet branch pipes 22 are provided along the axial direction of the transverse tube 2. The lower ends of the four liquid outlet branch pipes 22 penetrate and are fixed to the top of the frame 1. A hand valve 3 is sleeved and fixed on the liquid outlet branch pipe 22 above the frame 1. A placement seat 5 is provided inside the frame 1. A placement groove 51 is provided on the top of the placement seat 5 below the four liquid outlet branch pipes 22. A drilling fluid sample storage bottle 6 is placed in each of the four placement grooves 51. The drilling fluid The mouth of the sample storage bottle 6 is located directly below the liquid outlet branch pipe 22. By manually opening and closing the hand valve 3, the flow of the liquid outlet branch pipe 22 at the corresponding position can be controlled, so that it is convenient for personnel to pour the drilling fluid into the four drilling fluid sample storage bottles 6 one by one, without the need for personnel to manually adjust the positions of the four drilling fluid sample storage bottles 6. When sampling drilling fluid for oil and gas logging, the front end of the infusion pipe 4 can be connected to the liquid outlet end of the external sampling pump through a hose, and the hand valve 3 on the first liquid outlet branch pipe 22 on the left side is manually opened to start the sampling pump. At this time, the drilling fluid can be filtered through the filter screen 41 in the infusion pipe 4 and then enter Enter the liquid inlet branch pipe 21, and the drilling fluid entering the liquid inlet branch pipe 21 can enter the drilling fluid sample storage bottle 6 placed on the left in turn through the horizontal pipe 2 and the leftmost liquid outlet branch pipe 22. After the drilling fluid in the leftmost drilling fluid sample storage bottle 6 is taken to an appropriate amount, manually open the hand valve 3 on the second liquid outlet branch pipe 22 on the left, and close the hand valve 3 on the first liquid outlet branch pipe 22 on the left, and then inject drilling fluid into the second drilling fluid sample storage bottle 6 on the left. Repeat the above operation until all four drilling fluid sample storage bottles 6 are filled with drilling fluid one by one, and the sampling operation of drilling fluid for oil and gas logging can be completed.

[0022] Embodiment 2: The difference between this embodiment and embodiment 1 lies in that, the placement seat 5 is movably arranged in the frame 1, and the two sides of the placement seat 5 slide along the two sides inside the frame 1 respectively, a groove 11 is provided at the bottom of the frame 1, a screw rod 8 is rotatably connected to the frame 1 above the groove 11 through a bearing, the front end of the screw rod 8 is threaded into the threaded hole provided at the center position of the bottom of the placement seat 5, an adjustment handle 81 is fixedly arranged at the lower end of the screw rod 8, an annular sealing gasket 7 is fixedly connected to the top of the inner side of the frame 1 outside the liquid outlet branch pipe 22, and the bottle mouth of the drilling fluid sample storage bottle 6 abuts against the annular sealing gasket 7, by making the upper end of the drilling fluid sample storage bottle 6 abut against the annular sealing gasket 7, the bottle mouth of the drilling fluid sample storage bottle 6 can be sealed when the drilling fluid is poured into the drilling fluid sample storage bottle 6, thereby effectively preventing the drilling fluid in the drilling fluid sample storage bottle 6 from overflowing or splashing and polluting the frame 1, and can also effectively The drilling fluid sample storage bottle 6 is prevented from tipping over during the sampling process. After the drilling fluid sample storage bottle 6 is placed in the placement groove 51, the adjusting handle 81 can be manually rotated clockwise to drive the screw 8 to rotate. The rotation of the screw 8 can drive the placement seat 5 to move up and down along the inner wall of the frame 1, thereby driving the drilling fluid sample storage bottle 6 to move upward, so that the bottle mouth of the drilling fluid sample storage bottle 6 abuts against the annular sealing gasket 7, and the bottle mouth of the drilling fluid sample storage bottle 6 is sealed. It can also prevent the drilling fluid sample storage bottle 6 from overflowing and splashing at the bottle mouth of the drilling fluid sample storage bottle 6 during the sampling process to pollute the frame 1, and can also prevent the drilling fluid sample storage bottle 6 from tipping over. After the drilling fluid sampling is completed, the adjusting handle 81 can be manually rotated counterclockwise to drive the screw 8 to rotate, which can drive the placement seat 5 together with the drilling fluid sample storage bottle 6 to move downward to the lowest position. At this time, the drilling fluid sample storage bottle 6 can be manually taken out of the placement groove 51.

[0023] Working principle: during use, when sampling drilling fluid for oil and gas logging, the front end of the liquid infusion pipe 4 can be connected to the liquid outlet end of the external sampling pump through a hose, and the hand valve 3 on the first liquid outlet branch pipe 22 on the left is manually opened to start the sampling pump. At this time, the drilling fluid can be filtered through the filter screen 41 in the liquid infusion pipe 4 and then enter the liquid inlet branch pipe 21. The drilling fluid entering the liquid inlet branch pipe 21 can pass through the horizontal pipe 2 and the leftmost liquid outlet branch pipe 22 in turn to enter the drilling fluid sample storage bottle 6 placed on the leftmost side. After the drilling fluid in the leftmost drilling fluid sample storage bottle 6 is taken to an appropriate amount, the hand valve 3 on the second liquid outlet branch pipe 22 on the left is manually opened, and the hand valve 3 on the first liquid outlet branch pipe 22 on the left is closed, and drilling fluid can be injected into the second drilling fluid sample storage bottle 6 on the left. Repeat the above operation until all four drilling fluid sample storage bottles 6 are filled with drilling fluid one by one, and the oil and gas logging can be completed. The sampling operation of drilling fluid for gas logging is as follows: after the drilling fluid sample storage bottle 6 is placed in the placement groove 51, the screw 8 can be driven to rotate by manually turning the adjusting handle 81 clockwise. The rotation of the screw 8 can drive the placement seat 5 to move up and down along the inner wall of the frame 1, thereby driving the drilling fluid sample storage bottle 6 to move upward, so that the bottle mouth of the drilling fluid sample storage bottle 6 abuts against the annular sealing gasket 7, and the bottle mouth of the drilling fluid sample storage bottle 6 is sealed. It can also prevent the drilling fluid from overflowing and splashing at the bottle mouth of the drilling fluid sample storage bottle 6 during the sampling process, causing pollution to the frame 1, and can also prevent the drilling fluid sample storage bottle 6 from tipping over. After the drilling fluid sampling is completed, the adjusting handle 81 can be manually turned counterclockwise to drive the screw 8 to rotate, which can drive the placement seat 5 together with the drilling fluid sample storage bottle 6 to move downward to the lowest position. At this time, the drilling fluid sample storage bottle 6 can be manually taken out of the placement groove 51.

[0024] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0025] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments and any equivalent replacement of some of the technical features therein are within the protection scope of the present invention.

Claims

1. A drilling fluid sampling device for oil and gas logging, comprising a frame (1), characterized in that: A transverse tube (2) is arranged above the frame (1), a liquid inlet branch pipe (21) is fixedly arranged on the top of the transverse tube (2), a liquid infusion pipe (4) is screwed to the front end of the liquid inlet branch pipe (21), a filter screen (41) is arranged inside the liquid infusion pipe (4), a liquid outlet branch pipe (22) is arranged at the bottom of the transverse tube (2), and four liquid outlet branch pipes (22) are arranged along the axial direction of the transverse tube (2), and the lower ends of the four liquid outlet branch pipes (22) penetrate the fixed The frame (1) is fixed at the top of the frame, and a hand valve (3) is sleeved and fixed on the liquid outlet branch pipe (22) above the frame. A placement seat (5) is arranged inside the frame (1), and a placement groove (51) is provided on the top of the placement seat (5) below the four liquid outlet branch pipes (22). A drilling fluid sample storage bottle (6) is placed in each of the four placement grooves (51), and the bottle mouth of the drilling fluid sample storage bottle (6) is located directly below the liquid outlet branch pipe (22).

2. A drilling fluid sampling device for oil and gas logging according to claim 1, characterized in that: The placement seat (5) is movably arranged in the frame (1), and two sides of the placement seat (5) slide along two sides inside the frame (1) respectively.

3. A drilling fluid sampling device for oil and gas logging according to claim 2, characterized in that: A groove (11) is provided at the bottom of the frame (1), and a screw rod (8) is rotatably connected to the frame (1) above the groove (11) via a bearing.

4. A drilling fluid sampling device for oil and gas logging according to claim 3, characterized in that: The front end of the screw rod (8) is threadedly screwed into a threaded hole provided at the center of the bottom of the placement seat (5), and an adjustment handle (81) is fixedly provided at the lower end of the screw rod (8).

5. The drilling fluid sampling device for oil and gas logging according to claim 1, characterized in that: An annular sealing gasket (7) is fixedly connected to the top of the inner side of the frame (1) outside the liquid outlet branch pipe (22), and the bottle mouth of the drilling fluid sample storage bottle (6) abuts against the annular sealing gasket (7).

6. The drilling fluid sampling device for oil and gas logging according to claim 1, characterized in that: The filter screen (41) is placed in the infusion tube (4); an annular sealing gasket (42) is abutted between the front end of the inlet branch tube (21) and the rear end surface of the filter screen (41); an internal threaded portion is provided on the inner side wall at the rear end of the infusion tube (4); and an external threaded portion is provided at the front end of the inlet branch tube (21).

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