Oil field drilling fluid sampling device

Abstract

The utility model discloses an oil field drilling fluid sampling device, which relates to the field of oil field drilling fluid sampling devices and comprises a supporting leg, a valve controller is arranged at the upper end of the supporting leg, a liquid inlet pipe is arranged at the lower end of the valve controller, and a valve switch is arranged behind the valve controller. An operation table is arranged at the upper end of the valve controller, a control switch is arranged at the front end of the valve controller, the valve switch is connected with a sampling pipe, a liquid storage barrel is installed at the other end of the sampling pipe, a filter screen is installed in the liquid storage barrel, a piston plate is installed in the liquid storage barrel, and a hydraulic pipe is arranged at the upper end of the storage barrel; a connecting rod is arranged in the hydraulic pipe, a top pipe is arranged at one end of the connecting rod, and the top pipe penetrates through the storage barrel and the liquid storage barrel to be connected with the piston plate. According to the utility model, the problems that the liquid cannot be extracted when various liquids appear in the mine at the same time and the liquid in the mine cannot be accurately extracted can be solved.

Description

Technical Field

[0001] The utility model relates to the field of oilfield drilling fluid sampling devices, in particular to an oilfield drilling fluid sampling device. Background Art

[0002] Drilling fluid is a general term for various circulating fluids that meet the needs of drilling work with their multiple functions during the drilling process. Drilling fluid is the blood of drilling, also known as drilling flushing fluid. Drilling fluid can be divided into clean water, mud, clay-free flushing fluid, emulsion, foam and compressed air according to its composition. In oilfield drilling work, it is necessary to frequently test the performance parameters of drilling fluid, especially when drilling into complex formations. It is necessary to frequently sample and test the drilling fluid in the drilling fluid storage tank. Since the drilling fluid itself is mostly mud, the drilling fluid is prone to precipitation and stratification during the process of sampling from the drilling fluid storage tank and sending it to the laboratory for testing, which leads to deviations in the experimental results of subsequent tests. It needs to be stirred before the experiment, which is time-consuming and laborious.

[0003] After searching the Chinese patent: A Sampling Device for Oilfield Drilling Fluid (Announcement No.: CN210741916U), the utility model relates to the field of oilfield drilling technology, and specifically to a sampling device for oilfield drilling fluid. The device includes a liquid storage tank, a driving mechanism, a sampling barrel, a conveying structure and a stirring structure. The liquid storage tank is used to store the extracted drilling fluid; the driving mechanism is arranged on the liquid storage tank, and the driving mechanism has a linear output end that reciprocates up and down; the sampling barrel is rigidly connected to the linear output end; the conveying structure is arranged on the liquid storage tank, and is used to convey the drilling fluid in the sampling barrel to the liquid storage tank; the stirring structure is arranged on the liquid storage tank. The sampling barrel rigidly connected to the driving mechanism can stably enter the drilling fluid storage tank to realize fixed-point sampling. After the sampling is completed, the drilling fluid can directly enter the liquid storage tank through the conveying structure. The whole sampling process is greatly simplified, and the sampling efficiency of the drilling fluid is improved. At the same time, the stirring structure can stir the drilling fluid to avoid sedimentation and stratification of the drilling fluid before the experimental detection, and ensure the smooth progress of the subsequent experimental detection work.

[0004] An existing oilfield drilling fluid sampling device can only extract one liquid. If multiple liquids appear in the mine at the same time, it is impossible to extract the liquid. The sampling device is also unable to accurately extract the liquid inside the mine.

[0005] Therefore, it is necessary to invent an oilfield drilling fluid sampling device to solve the above problems. Utility Model Content

[0006] The utility model aims to provide an oilfield drilling fluid sampling device to solve the problem in the above background technology that if multiple liquids appear in the mine at the same time, it is impossible to sample the liquid, and it is impossible to accurately sample the liquid inside the mine.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oilfield drilling fluid sampling device, comprising a supporting leg, a valve controller is arranged on the upper end of the supporting leg, a liquid inlet pipe is arranged on the lower end of the valve controller, a valve switch is arranged and installed behind the valve controller, an operating table is arranged on the upper end of the valve controller, a control switch is arranged on the front end of the valve controller, three control switches are arranged, and three control switches are arranged corresponding to the valve switch, the valve switch is connected to a sampling tube, a storage barrel is arranged on the upper end of the supporting leg, a cavity is arranged inside the storage barrel, a liquid storage barrel is installed on the other end of the sampling tube, a filter screen is installed inside the liquid storage barrel, a piston plate is installed inside the liquid storage barrel, a hydraulic pipe is arranged on the upper end of the storage barrel, a connecting rod is arranged inside the hydraulic pipe, a top pipe is arranged on one end of the connecting rod, the top passes through the storage barrel and the liquid storage barrel is connected to the piston plate.

[0008] Preferably, a limiting block is installed on the outside of the liquid storage barrel, and the lower end of the limiting block is fixedly installed inside the storage barrel.

[0009] Preferably, a support plate is provided at the front end of the storage barrel, and a support inclined plate is provided between the support plate and the storage barrel.

[0010] Preferably, a driving motor is disposed through the upper end of the support plate, and a delivery pump is disposed on one side of the driving motor.

[0011] Preferably, a liquid extraction hose is provided between the driving motor and the delivery pump.

[0012] Preferably, one end of the liquid collection hose passes through the interior of the liquid storage barrel, and one end of the liquid collection hose is inserted into the interior of the sampling barrel.

[0013] Preferably, a sampling bucket is provided at a position of the support plate corresponding to the outlet of one end of the liquid collection hose.

[0014] Technical effects and advantages of the utility model:

[0015] 1. By setting up a liquid inlet pipe, a valve controller, an operating table, a control switch and a valve switch, three control switches are set at the front end of the valve controller, and the three control switches correspond to the three liquid storage barrels at the back. A liquid inlet pipe is set at the lower end of the valve controller, and the liquid inlet pipe is used to extract liquid from the inside of the mine through an external pipeline. An operating table is set at the upper end of the valve controller, and the operating table can input instructions to control the opening and closing of the valve switch, and can also control the drive motor. A valve switch is set at the rear end of the valve controller, and three control switches corresponding to the valve switch are also set. When the operating table gives instructions, the valve controller will control the opening and closing of the valve switch;

[0016] 2. By setting up hydraulic pipes, connecting rods, jacking pipes, liquid storage barrels, piston plates, filters, sampling tubes and liquid storage barrels, the hydraulic pipes will be opened to move after the valve switch is turned on, and the piston plate inside the liquid storage barrel is connected to the jacking pipe. The jacking pipe runs through the liquid storage barrel and the storage barrel is connected to the connecting rod. After the hydraulic pipe is started, the piston plate is pulled out, increasing the pressure inside the liquid storage barrel, so that the sampling tube sucks the drilling fluid from the liquid inlet pipe into the liquid storage barrel. Since a filter is set at the front end of the liquid storage barrel, unnecessary impurities can be filtered out. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of an oilfield drilling fluid sampling device from the front.

[0019] Figure 2 The utility model is a schematic diagram of the top view of the structure of an oilfield drilling fluid sampling device.

[0020] Figure 3 The utility model is a schematic diagram of the anatomical structure of an oilfield drilling fluid sampling device.

[0021] Figure 4 The utility model is a structural schematic diagram of an oilfield drilling fluid sampling device.

[0022] In the figure: 1. storage barrel; 2. support plate; 3. support leg; 4. support inclined plate; 5. liquid inlet pipe; 6. valve controller; 7. operating table; 8. control switch; 9. valve switch; 10. hydraulic pipe; 11. connecting rod; 12. jacking pipe; 13. liquid storage barrel; 14. piston plate; 15. filter screen; 16. sampling tube; 17. sampling barrel; 18. liquid collection hose; 19. delivery pump; 20. driving motor; 21. limit block. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] The utility model provides Figure 1-4 The oilfield drilling fluid sampling device shown in the figure includes a support leg 3, a valve controller 6 is arranged at the upper end of the support leg 3, a liquid inlet pipe 5 is arranged at the lower end of the valve controller 6, wherein the liquid inlet pipe 5 can be connected to the required pipeline externally, a valve switch 9 is arranged and installed behind the valve controller 6, an operating table 7 is arranged at the upper end of the valve controller 6, a control switch 8 is arranged at the front end of the valve controller 6, three control switches 8 are arranged, and three valve switches 9 are arranged corresponding to the control switches 8, wherein the three valve switches 9 correspond to three storage devices, wherein the three control switches 8 also correspond to the control valve switches 9 and the corresponding liquid taking devices, the valve switch 9 is connected to the sampling tube 16, and a storage barrel 1 is arranged at the upper end of the support leg 3, wherein the upper end of the storage barrel 1 is at the place corresponding to the liquid storage barrel 13 An observation window is provided, a cavity is provided inside the storage barrel 1, a liquid storage barrel 13 is installed at the other end of the sampling tube 16, wherein the liquid storage barrel 13 is made of transparent material and can be graduated, a filter screen 15 is installed inside the liquid storage barrel 13, wherein the filter screen 15 is used to filter impurities in the sampling liquid, a piston plate 14 is installed inside the liquid storage barrel 13, a hydraulic pipe 10 is provided at the upper end of the storage barrel 1, a connecting rod 11 is provided inside the hydraulic pipe 10, a top pipe 12 is provided at one end of the connecting rod 11, the top pipe 12 passes through the storage barrel 1 and the liquid storage barrel 13 and is connected to the piston plate 14, wherein the connecting rod 11, the hydraulic pipe 10, the top pipe 12 and the piston plate 14 are assembled together into a hydraulic piston device, and starting the device can draw drilling fluid into the liquid storage barrel 13.

[0025] A limiting block 21 is installed outside the liquid storage barrel 13, and the lower end of the limiting block 21 is fixedly installed inside the storage barrel 1, wherein the limiting block 21 makes the liquid storage barrel 13 fixedly installed inside the storage barrel 1 and will not move.

[0026] A support plate 2 is disposed at the front end of the storage barrel 1 , and a support inclined plate 4 is disposed between the support plate 2 and the storage barrel 1 , wherein the support plate 2 , the storage barrel 1 and the support inclined plate 4 form a stable triangular structure.

[0027] A driving motor 20 is provided through the upper end of the support plate 2, and a delivery pump 19 is provided on one side of the driving motor 20, wherein the driving motor 20 can obtain instructions given by the operating console 7 and send them to the delivery pump 19 for operation.

[0028] A liquid collection hose 18 is provided between the driving motor 20 and the delivery pump 19 , wherein three liquid collection hoses 18 are provided side by side corresponding to the liquid storage barrels 13 below.

[0029] One end of the liquid collection hose 18 passes through the liquid storage barrel 13 , and one end of the liquid collection hose 18 is inserted into the sampling barrel 17 , wherein the liquid collection hose 18 can extract liquid from the liquid storage barrel 13 and then transfer it to the sampling barrel 17 after the delivery pump 19 gives power.

[0030] A sampling bucket 17 is disposed on the support plate 2 at a position corresponding to the outlet of one end of the liquid collection hose 18 , wherein three sampling buckets 17 are also distributed at the lower ends corresponding to the three liquid collection hoses 18 .

[0031] Working principle: Three control switches 8 are arranged at the front end of the valve controller 6, and the three control switches 8 correspond to the three liquid storage barrels 13 at the back respectively. A liquid inlet pipe 5 is arranged at the lower end of the valve controller 6, and the liquid inlet pipe 5 is used to extract the liquid inside the mine through an external pipeline. An operating table 7 is arranged at the upper end of the valve controller 6. The operating table 7 can input instructions to control the opening and closing of the valve switch 9, and can also control the driving motor 20. After the driving motor 20 is turned on, the delivery pump 19 will start to work. The delivery pump 19 will extract the drilling fluid inside the corresponding liquid storage barrel 13 according to the control switch 8, and then deliver it to the corresponding sampling barrel 17 through the corresponding liquid collection hose 18. A valve switch 9 is arranged at the rear end of the valve controller 6, and the valve switch 9 corresponds to the control switch There are also three switches 8. When the operating table 7 gives instructions, the valve controller 6 will control the opening and closing of the valve switch 9. After the valve switch 9 is opened, the hydraulic pipe 10 will be opened to move. The piston plate 14 inside the liquid storage barrel 13 is connected to the top pipe 12. The top pipe 12 penetrates the liquid storage barrel 13 and the storage barrel 1 and is connected to the connecting rod 11. After the hydraulic pipe 10 is started, the piston plate 14 is driven to be pulled out, increasing the pressure inside the liquid storage barrel 13, so that the sampling tube 16 sucks the drilling fluid from the liquid inlet pipe 5 into the liquid storage barrel 13. Since the filter screen 15 is provided at the front end of the liquid storage barrel 13, unnecessary impurities can be filtered out. The operating table 7 can control the accuracy of drilling fluid extraction, and the extraction work will be stopped after the set control amount is reached.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. 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. An oilfield drilling fluid sampling device, comprising a support leg (3), characterized in that: The upper end of the support leg (3) is provided with a valve controller (6), the lower end of the valve controller (6) is provided with a liquid inlet pipe (5), the rear of the valve controller (6) is provided with a valve switch (9), the upper end of the valve controller (6) is provided with an operating table (7), the front end of the valve controller (6) is provided with a control switch (8), three control switches (8) are provided, three valve switches (9) are provided corresponding to the control switches (8), the valve switch (9) is connected to a sampling tube (16), the upper end of the support leg (3) is provided with a storage A barrel (1) is provided with a cavity inside the storage barrel (1), a liquid storage barrel (13) is installed at the other end of the sampling tube (16), a filter screen (15) is installed inside the liquid storage barrel (13), a piston plate (14) is installed inside the liquid storage barrel (13), a hydraulic pipe (10) is provided at the upper end of the storage barrel (1), a connecting rod (11) is provided inside the hydraulic pipe (10), a top pipe (12) is provided at one end of the connecting rod (11), and the top pipe (12) passes through the storage barrel (1) and the liquid storage barrel (13) and is connected to the piston plate (14).

2. The oilfield drilling fluid sampling device according to claim 1, characterized in that: A limiting block (21) is installed on the outside of the liquid storage barrel (13), and the lower end of the limiting block (21) is fixedly installed inside the storage barrel (1).

3. The oilfield drilling fluid sampling device according to claim 1, characterized in that: A support plate (2) is provided at the front end of the storage barrel (1), and a support inclined plate (4) is provided between the support plate (2) and the storage barrel (1).

4. The oilfield drilling fluid sampling device according to claim 3, characterized in that: A driving motor (20) is provided through the upper end of the support plate (2), and a delivery pump (19) is provided on one side of the driving motor (20).

5. The oilfield drilling fluid sampling device according to claim 4, characterized in that: A liquid collection hose (18) is provided between the driving motor (20) and the delivery pump (19).

6. The oilfield drilling fluid sampling device according to claim 5, characterized in that: One end of the liquid collection hose (18) passes through the interior of the liquid storage barrel (13), and one end of the liquid collection hose (18) is inserted into the interior of the sampling barrel (17).

7. The oilfield drilling fluid sampling device according to claim 3, characterized in that: The support plate (2) is provided with a sampling bucket (17) at a position corresponding to the outlet of one end of the liquid collection hose (18).

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