Automatic drilling fluid detector

Abstract

The invention belongs to the technical field of oil drilling, and particularly relates to an automatic drilling fluid detector. The automatic drilling fluid detector comprises a box body, the Markov funnel is used for measuring drilling fluid, and the Markov funnel is arranged in the box body; the outlet end of the conveying pipeline is arranged at the inlet end of the Markov funnel, and an electromagnetic valve is arranged on the conveying pipeline; the liquid level sensor is used for measuring the liquid level in the Markov funnel; the liquid storage cylinder is rotationally arranged below the Markov funnel, the rotating axis of the liquid storage cylinder is in the vertical direction, and a plurality of liquid storage cavities are evenly distributed in the liquid storage cylinder in the circumferential direction. The problem that the existing drilling fluid viscosity detection efficiency is low can be solved.

Description

Technical Field

[0001] The invention belongs to the technical field of petroleum drilling, and in particular relates to an automatic detection instrument for drilling fluid. Background Art

[0002] The performance of drilling fluid is constantly changing during the drilling process, and changes in drilling fluid performance will affect the progress of drilling construction. By monitoring the changes in drilling fluid performance, it is also possible to show the contamination of the drilling fluid by the formation fluid and the oil and gas display. Therefore, monitoring the performance parameters of drilling fluid is particularly important.

[0003] At present, the measurement of drilling fluid performance parameters on site mainly relies on drilling fluid workers to sit on duty uninterruptedly, sample the drilling fluid at fixed intervals, and then manually measure various parameters of the drilling fluid and record the measurement results. This measurement method not only increases the workload of drilling fluid workers, but also easily leads to untimely measurements when working conditions are tight or there are insufficient personnel. At the same time, manual measurement has large errors. Summary of the invention

[0004] In view of the technical problems mentioned above, the present invention aims to provide an automatic drilling fluid detector, which can solve the problem of low efficiency of existing drilling fluid viscosity detection.

[0005] According to the present invention, there is provided a drilling fluid automatic detector, comprising:

[0006] Box;

[0007] A Marsh funnel for measuring drilling fluid, wherein the Marsh funnel is disposed in the box;

[0008] A delivery pipeline, wherein the outlet end of the delivery pipeline is arranged at the inlet end of the Magnesium funnel, and a solenoid valve is arranged on the delivery pipeline;

[0009] a liquid level sensor for measuring the liquid level in the Marsh funnel;

[0010] And a liquid storage cylinder is rotatably arranged below the Magnitogorsk funnel, wherein the rotation axis of the liquid storage cylinder is along the vertical direction, and a plurality of liquid storage chambers are evenly distributed in the circumferential direction in the liquid storage cylinder.

[0011] In a specific embodiment, the two liquid level sensors are respectively arranged at the positions of the upper liquid full line and the lower liquid discharge line of the Magnitogorsk funnel, and the liquid level sensors are non-contact liquid level sensors.

[0012] In a specific embodiment, the delivery pipeline includes a main delivery pipe, a delivery branch pipe and a discharge pipe interconnected by a three-way joint, the outlet of the delivery branch pipe is located at the inlet end of the Magnesium funnel, and solenoid valves are provided on the delivery branch pipe and the discharge pipe.

[0013] In a specific embodiment, a cylinder cover is arranged on the upper part of the liquid storage cylinder, and a plurality of liquid guiding funnels are evenly arranged on the cylinder cover along the circumference, and the liquid guiding funnels are connected to the liquid storage chambers in a one-to-one correspondence.

[0014] In a specific embodiment, a horizontally movable moving component is disposed in the box body, and the liquid storage cylinder is rotatably disposed on the moving component.

[0015] In a specific embodiment, an electric turntable is provided at the bottom of the liquid storage cylinder, and the lower end of the electric turntable is connected to the moving component.

[0016] In a specific embodiment, a solenoid valve is provided at the outlet end of the Magnitogorsk funnel.

[0017] In a specific embodiment, a booster pump and a flushing pipe connected to the booster pump are also provided in the box, and the outlet end of the flushing pipe is located above the Magersch funnel.

[0018] In a specific embodiment, a plurality of high-pressure nozzles are evenly arranged along the circumferential direction at the outlet end of the flushing pipe.

[0019] In a specific embodiment, a control panel and a display instrument electrically connected to each other are arranged outside the box.

[0020] Compared with the prior art, the advantages of the present application are as follows.

[0021] The present invention cooperates with the main delivery pipe, the delivery branch pipe and the drainage pipe. When sampling and testing are not required, the solenoid valve on the delivery branch pipe is closed and the solenoid valve on the drainage pipe is opened, so that the drilling fluid can flow smoothly from the main delivery pipe to the drainage pipe without affecting the normal flow of the drilling fluid. When sampling and testing are required, the solenoid valve on the delivery branch pipe is opened and the solenoid valve on the drainage pipe is closed, and the drilling fluid automatically enters the Marsh funnel through the delivery branch pipe to complete the sampling.

[0022] The liquid level sensor can detect the amount of liquid in the Marsh funnel and calculate the viscosity of the drilling fluid based on the time it takes for the drilling fluid in the Marsh funnel to fall from the upper full liquid line to the lower drainage line.

[0023] The entire process can be carried out automatically without the need for manual sampling and testing, saving manpower and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be described below with reference to the accompanying drawings.

[0025] Figure 1 A schematic diagram showing an embodiment of an automatic drilling fluid detector according to the present invention is shown;

[0026] Figure 2 A schematic diagram showing the exterior of a housing according to the present invention is shown;

[0027] Figure 3 A top view of a liquid storage cartridge according to the present invention is shown;

[0028] Figure 4 A top view of a cartridge cover and a liquid guiding funnel according to the present invention is shown.

[0029] In the figure:

[0030] 1. Box body;

[0031] 2. Malpighian funnel;

[0032] 3. Liquid level sensor;

[0033] 4. Main delivery pipe;

[0034] 5. Transport branch pipe;

[0035] 6. Drainage pipe;

[0036] 7. Flushing pipe;

[0037] 8. Booster pump;

[0038] 9. High pressure nozzle;

[0039] 10. Liquid storage cylinder;

[0040] 11. Mobile components;

[0041] 12. Electric turntable;

[0042] 13. Cylinder cover;

[0043] 14. Liquid guide funnel;

[0044] 15. Control panel;

[0045] 16. Display instrument;

[0046] 17. Separator;

[0047] 100. Automatic drilling fluid detector.

[0048] In the present application, all drawings are schematic drawings, which are only used to illustrate the principles of the present invention and are not drawn according to the actual scale. DETAILED DESCRIPTION

[0049] The present invention will be described below with reference to the accompanying drawings.

[0050] It should be noted that the directional terms or qualifiers "upper", "lower", "left", "right", etc. used in this application are all relative to the referenced Figure 1 They are not intended to define the absolute positions of the components involved, but may vary depending on the specific circumstances.

[0051] Figure 1 The structure of the automatic drilling fluid detector 100 according to the present invention is shown. Figure 1 As shown, the drilling fluid automatic detector 100 includes a square box 1 with a cavity, a Marsh funnel 2 is fixedly arranged inside the box 1, the Marsh funnel 2 is fixedly connected to the box wall of the box 1 along the vertical direction, the upper end of the Marsh funnel 2 is the inlet end, and the lower end of the Marsh funnel 2 is the outlet end. An electromagnetic valve is arranged at the lower outlet end of the Marsh funnel 2, and the electromagnetic valve can control the opening and closing of the lower outlet end of the Marsh funnel 2.

[0052] At least two liquid level sensors 3 are arranged on the Marsh funnel 2, and the two liquid level sensors 3 correspond to the upper full liquid line and the lower liquid discharge line of the Marsh funnel 2. The upper full liquid line and the lower liquid discharge line are two lines arranged on the Marsh funnel 2, and are used to observe the liquid surface flow of the drilling fluid in the Marsh funnel.

[0053] In this embodiment, the Magnum funnel 2 is made of a transparent material, and the changes in the internal liquid level can be observed through the Magnum funnel 2 .

[0054] In this setting, by setting two fixed standard lines (upper full liquid line and lower drain line), the drilling fluid volume obtained each time is guaranteed to be equal, and the viscosity of the drilling fluid is determined by measuring the time for the drilling fluid in the volume to flow out completely, making the measurement of the drilling fluid more accurate. The time interval between the two liquid level sensors 3 sending the detection signal is the time for the drilling fluid to flow out completely.

[0055] It is easy to understand that when the liquid level sensor 3 located at the top detects that the liquid level passes through the upper full liquid line, the liquid level sensor 3 sends a detection signal; when the liquid level sensor 3 located at the bottom detects that the liquid level passes through the lower drainage line, the liquid level sensor 3 sends a detection signal.

[0056] In this embodiment, the Magnitogorsk funnel 2 is made of transparent material, and the liquid level sensor 3 is a non-contact liquid level sensor.

[0057] Preferably, the Magnum funnel 2 is made of transparent glass.

[0058] Preferably, the non-contact liquid level sensor may be a humidity sensor or an ultrasonic liquid level sensor. The humidity sensor model used in this embodiment is XKC-Y26.

[0059] like Figure 1 As shown, a delivery pipeline is provided through the box wall on the left side of the box body 1 , and the delivery pipeline is used to deliver the drilling fluid to the Marsh funnel 2 .

[0060] Specifically, the delivery pipeline includes a main delivery pipe 4, a delivery branch pipe 5 and a drainage pipe 6. The main delivery pipe 4 is arranged through the upper part of the box wall on the left side of the box body 1, and the drilling fluid can flow from the outside of the box body 1 to the inside along the main delivery pipe 4. The drainage pipe 6 is arranged through the lower part of the box wall on the left side of the box body 1, and the port of the drainage pipe 6 located inside the box body 1 is connected to the main delivery pipe 4 through a three-way joint, and the delivery branch pipe 5 is connected to the remaining interface of the three-way joint, and the outlet of the delivery branch pipe 5 is located at the inlet end of the Magnesium funnel 2, that is, the outlet of the delivery branch pipe 5 is located above the Magnesium funnel 2.

[0061] In a specific embodiment, a solenoid valve capable of controlling the opening and closing of the delivery branch pipe 5 is also provided on the delivery branch pipe 5 , and a solenoid valve capable of controlling the opening and closing of the discharge pipe 6 is provided on the discharge pipe 6 .

[0062] When it is necessary to sample and test the drilling fluid, the solenoid valve on the drainage pipe 6 is closed, and the solenoid valve on the delivery branch pipe 5 is opened at the same time, so that the drilling fluid in the main delivery pipe 4 flows into the Marsh funnel 2 through the delivery branch pipe 5. When it is not necessary to sample the drilling fluid, the solenoid valve on the drainage pipe 6 is opened, and the solenoid valve on the delivery branch pipe 5 is closed at the same time, so that the drilling fluid in the main delivery pipe 4 flows through the drainage pipe 6.

[0063] It is easy to understand that the main delivery pipe 4 and the drainage pipe 6 can be connected to the existing pipeline for conveying drilling fluid in series or in parallel, as long as the drilling fluid can flow through the main delivery pipe 4.

[0064] In a preferred embodiment, the length of the delivery branch pipe 5 is reserved to 8 to 10 centimeters. While meeting the length of the pipeline, the length of the delivery branch pipe 5 is minimized to minimize the impact of the residual drilling fluid in the delivery branch pipe 5 on the next measurement.

[0065] The process of testing the viscosity of drilling fluid in this embodiment is as follows.

[0066] The solenoid valve of the delivery branch pipe 5 is opened, and the solenoid valve of the discharge pipe 6 is closed, so that the drilling fluid in the main delivery pipe 4 flows into the Magnum funnel 2 through the delivery branch pipe 5 .

[0067] After the drilling fluid level in the Marsh funnel 2 exceeds the upper full liquid line, the solenoid valve of the discharge pipe 6 is opened and the solenoid valve of the delivery branch pipe 5 is closed.

[0068] Then, the solenoid valve at the lower end of the Marsh funnel 2 is opened. The upper liquid level sensor 3 sends an electrical signal when it detects that the liquid level reaches the upper full liquid line. The lower liquid level sensor 3 sends an electrical signal when it detects that the liquid level reaches the lower drainage line. The interval time between the two liquid level sensors 3 sending electrical signals is detected and recorded, and the viscosity of the drilling fluid is calculated based on the drilling fluid volume between the upper full liquid line and the lower drainage line and the time.

[0069] It is easy to understand that the method for calculating the viscosity of drilling fluid based on the volume of drilling fluid and the flow time is a prior art. This calculation method is not the technical point of the present invention and will not be described in detail here.

[0070] In this embodiment, a control panel 15 and a display 16 are provided outside the box 1, and the parameters of each sampling test are intuitively displayed through the display 16 so that the staff can obtain them intuitively.

[0071] Specifically, the control board 15 and the display 16 are electrically connected to each other, and the control board 15 is electrically connected to the liquid level sensor 3 and each solenoid valve in this embodiment. In other words, the control board 15 can receive the electrical signal of the liquid level sensor 3 and can also control the opening and closing of each solenoid valve.

[0072] In a specific embodiment, the control board 15 is connected to a matching PLC controller (not shown in the figure). Under the action of the PLC controller, the control board 15 controls the interval time of each sampling and the opening and closing of each solenoid valve, thereby realizing automatic regular sampling of the drilling fluid without the need for manual continuous inspection, saving manpower and material resources and improving work efficiency.

[0073] It is easy to understand that the specific electrical connection method between the liquid level sensor 3, each solenoid valve, the control board 15, the display 16 and the PLC controller is a prior art, which is not the technical point of the present invention and will not be repeated here.

[0074] In a preferred embodiment, a liquid storage cylinder 10 is further provided inside the box body 1, and the liquid storage cylinder 10 is located below the Marsh funnel 2. The drilling fluid in the Marsh funnel 2 can flow into the liquid storage cylinder 10 after flowing out of the Marsh funnel 2.

[0075] In this embodiment, the liquid storage cylinder 10 can rotate along a vertical axis, and the rotation axis of the liquid storage cylinder 10 does not coincide with the central axis of the Magnum funnel 2 .

[0076] There are multiple liquid storage chambers evenly distributed along the circumference in the liquid storage cylinder 10, and the capacity of each liquid storage chamber is greater than or equal to the drilling fluid used for one measurement of the Marsh funnel 2. Under this setting, after each sampling test, the drilling fluid flows from the Marsh funnel 2 to a liquid storage chamber of the liquid storage cylinder 10 for storage. When sampling and testing next time, it is only necessary to rotate the liquid storage cylinder 10 to rotate an empty liquid outlet chamber to the bottom of the Marsh funnel 2 for subsequent testing.

[0077] In a preferred embodiment, Figure 3 As shown, four partition plates 17 are evenly arranged along the circumferential direction inside the liquid storage cylinder 10 , and the four partition plates 17 are constructed in a cross shape to divide the liquid storage cylinder 10 into four liquid storage chambers.

[0078] In a preferred embodiment, Figure 1 and Figure 4 As shown, a cylinder cover 13 is provided at the upper end of the liquid storage cylinder 10, and the cylinder cover 13 blocks the upper end opening of the liquid storage cylinder 10. Four liquid guide funnels 14 are evenly arranged along the circumference on the cylinder cover 13, and the four liquid guide funnels 14 are arranged along the vertical direction. In addition, the four liquid guide funnels 14 correspond to the four liquid outlet chambers one by one, that is, each liquid guide funnel 14 is connected to a corresponding liquid storage chamber, thereby reducing the influence of the external environment on the drilling fluid inside the liquid outlet chamber.

[0079] In this embodiment, the liquid storage cylinder 10 is rotated by an electric turntable 12 arranged at the lower part. Since this embodiment is provided with four liquid storage chambers, the electric turntable 12 of this embodiment is rotated 90 degrees at a time to realize the conversion between two adjacent liquid storage chambers.

[0080] Specifically, the electric turntable 12 can be driven by a servo motor to accurately ensure the rotation angle.

[0081] In a preferred embodiment, a moving component 11 is also provided inside the box body 1. The moving component 11 is arranged in a horizontal direction, and its fixed end is fixedly connected to the inner wall of the box body 1. The liquid storage cylinder 10 is rotatably arranged at the moving end of the moving component 11 through an electric turntable 12 arranged at the bottom.

[0082] In this configuration, the moving assembly 11 can drive the liquid storage cylinder 10 to move in the horizontal direction. When the drilling fluid in the Marsh funnel 2 needs to be received, the liquid storage chamber of the liquid storage cylinder 10 is moved to the bottom of the Marsh funnel 2 by the moving assembly 11 to collect the drilling fluid flowing out of the Marsh funnel 2. When the drilling fluid in the liquid storage cylinder 10 needs to be collected, the liquid storage cylinder 10 is moved to an open area away from the Marsh funnel 2 by the moving assembly 11, so as to facilitate the collection of the drilling fluid in the liquid storage cylinder 10.

[0083] According to the present invention, the moving assembly 11 can use an electromagnetic guide rail or a screw-driven guide rail. The electromagnetic guide rail or the screw-driven guide rail are both prior arts, and their specific structures are not the technical key points of the present invention, and will not be described in detail here.

[0084] In a preferred embodiment, a booster pump 8 and a flushing pipe 7 connected to the booster pump 8 are also provided in the box body 1. The outlet end of the flushing pipe 7 is located above the Magnum funnel 2. The booster pump 8 is connected to clean water.

[0085] Through this arrangement, after the booster pump is turned on, clean water can be drawn to rinse the Magnum funnel 2.

[0086] After each measurement, the booster pump 8 is turned on to pump clean water to flush the Marsh funnel 2, which can prevent drilling fluid from remaining on the Marsh funnel 2, thereby improving the accuracy of the next measurement result.

[0087] In a preferred embodiment, a plurality of high-pressure nozzles 9 are evenly arranged along the circumference at the outlet end of the flushing pipe 7. The high-pressure nozzles 9 can further increase the flow rate of the sprayed water flow and enhance the flushing effect.

[0088] In the description of the present invention, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0089] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0090] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" 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 present invention. 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 may be combined in any one or more embodiments or examples in a suitable manner.

[0091] Finally, it should be noted that the above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drilling fluid automatic detector, characterized in that: include: Box body (1); A Marsh funnel (2) for measuring drilling fluid, wherein the Marsh funnel (2) is arranged in the box (1); A delivery pipeline, wherein the outlet end of the delivery pipeline is arranged at the inlet end of the Magnesium funnel (2), and a solenoid valve is arranged on the delivery pipeline; A liquid level sensor (3) for measuring the liquid level in the Marsh funnel (2); And a liquid storage cylinder (10) is rotatably arranged below the Magnitogorsk funnel (2), wherein the rotation axis of the liquid storage cylinder (10) is along the vertical direction, and a plurality of liquid storage chambers are evenly distributed in the circumferential direction in the liquid storage cylinder (10).

2. The drilling fluid automatic detector according to claim 1, characterized in that: The Marsh funnel (2) is made of a transparent material, and the two liquid level sensors (3) are respectively arranged at the positions of the upper liquid full line and the lower liquid discharge line of the Marsh funnel (2), and the liquid level sensors (3) are non-contact liquid level sensors.

3. The drilling fluid automatic detector according to claim 1, characterized in that: The delivery pipeline comprises a main delivery pipe (4), a delivery branch pipe (5) and a liquid discharge pipe (6) which are interconnected via a three-way joint, the outlet of the delivery branch pipe (5) is located at the inlet end of the Magnesium funnel (2), and electromagnetic valves are arranged on the delivery branch pipe (5) and the liquid discharge pipe (6).

4. The drilling fluid automatic detector according to claim 1, characterized in that: A cylinder cover (13) is arranged on the upper part of the liquid storage cylinder (10), and a plurality of liquid guide funnels (14) are evenly arranged on the cylinder cover (13) along the circumference, and the liquid guide funnels (14) are connected to the liquid storage chambers in a one-to-one correspondence.

5. The drilling fluid automatic detector according to claim 1, characterized in that: A horizontally movable moving component (11) is arranged in the box body (1), and the liquid storage cylinder (10) is rotatably arranged on the moving component (11).

6. The drilling fluid automatic detector according to claim 5, characterized in that: An electric turntable (12) is arranged at the bottom of the liquid storage cylinder (10), and the lower end of the electric turntable (12) is connected to the moving assembly (11).

7. The drilling fluid automatic detector according to claim 1, characterized in that: An electromagnetic valve is arranged at the outlet end of the Magnesium funnel (2).

8. The drilling fluid automatic detector according to claim 1, characterized in that: A booster pump (8) and a flushing pipe (7) connected to the booster pump (8) are also provided in the box body (1), and the outlet end of the flushing pipe (7) is located above the Magnum funnel (2).

9. The automatic drilling fluid detector according to claim 8, characterized in that: A plurality of high-pressure nozzles (9) are evenly arranged along the circumferential direction at the outlet end of the flushing pipe (7).

10. The automatic drilling fluid detector according to any one of claims 1 to 9, characterized in that: A control panel and a display are arranged outside the box (1).

Images