Rapid sampling and detecting device for oilfield development

Abstract

The utility model relates to the technical field of oil field development sampling detection, in particular to an oil field development rapid sampling detection device which comprises a moving trolley, the upper end of the surface of the moving trolley is rotationally connected with a winding wheel, and a rope is wound on the surface of the winding wheel; the sampling mechanism comprises a balancing weight fixedly connected to the bottom end of the rope, and the lower end of the surface of the balancing weight is fixedly connected with a storage cylinder; according to the device, the upper end of the inner wall of the storage barrel is plugged through a sealing gasket, it is guaranteed that the sealing gasket is tightly attached to the upper end of the surface of a sampling pipe, and through a first motor, a rotating disc and a through hole, oil liquid at different depths in an oil well flows into the corresponding sampling pipe; according to the mode, the oil liquid is guided into the sampling pipe, so that the normal quantity of the detected sample is ensured, and the detection effect on the oil liquid sample is further ensured.

Description

Technical Field

[0001] This utility model relates to the field of oilfield development sampling and testing technology, and in particular to a rapid sampling and testing device for oilfield development. Background Technology

[0002] Oilfield development refers to the entire process of systematically extracting oil from underground to the surface based on an understanding and mastery of oilfield geology and its changing patterns, and in accordance with national demand for crude oil production, technical conditions, and economic rationality. To ensure the safety and efficiency of oilfield development, sampling and testing devices are typically used to analyze core samples and fluid samples from the oil reservoir.

[0003] According to the search, the Chinese patent "A Sampling and Detection Device for Oilfield Development" authorized announcement number "CN221377282U" realizes the sampling of oil at different depths in oil wells through a sampling box, partition, sample storage chamber and solenoid valve. The oil sampled in the sample storage chamber can be poured into the sample storage tube, which facilitates the subsequent detection of oil samples.

[0004] In the aforementioned application, because the oil is viscous, when the oil sample in the sample storage chamber is poured into the sample storage tube, some oil may remain in the sample storage chamber, which may lead to a reduction in the amount of sample to be tested, thereby affecting the detection effect of the oil sample.

[0005] Therefore, a rapid sampling and testing device for oilfield development is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a rapid sampling and testing device for oilfield development in order to solve the above-mentioned problems. It improves the problem that when oil samples are poured into the sample storage tube, some oil may remain in the sample storage chamber due to the viscosity of the oil.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a rapid sampling and testing device for oilfield development, comprising: a mobile vehicle, on the upper surface of which a winding wheel is rotatably connected, and a rope wound around the surface of the winding wheel; and a sampling mechanism, comprising a counterweight fixedly connected to the bottom end of the rope, a storage cylinder fixedly connected to the lower surface of the counterweight, a sealing gasket fixedly connected to the upper inner wall of the storage cylinder, a first motor fixedly connected to the bottom end of the sealing gasket, a turntable fixedly connected to the output shaft of the first motor, a through hole at the top of the turntable, and annularly distributed sampling tubes in contact with the inner wall of the sealing gasket. The sealing gasket effectively seals the upper inner wall of the storage cylinder, ensuring that the sealing gasket is tightly attached to the upper surface of the sampling tubes. Through the first motor, the turntable, and the through hole, oil at different depths inside the oil well flows into the corresponding sampling tubes, ensuring the normal quantity of samples tested and thus guaranteeing the effectiveness of oil sample testing.

[0008] Preferably, the bottom of the storage cylinder is provided with a shield, and the inner wall of the shield is threaded with annularly distributed bolts, the surface of which is threaded to the lower end of the inner wall of the storage cylinder. The bolts and the shield seal the bottom of the storage cylinder, ensuring the stability of the sampling tube inside the storage cylinder.

[0009] Preferably, the lower end of the inner wall of the storage cylinder is fixedly connected with an annularly distributed guide cover, the surface of which is funnel-shaped.

[0010] Preferably, the surface of the guide cover is slidably connected with annularly distributed abutments, the ends of the abutments are rolled with rubber balls, and the opposite ends of the abutments and the guide cover are fixedly connected with springs. Through the funnel-shaped guide cover, abutments, springs, and rubber balls, precise guidance is achieved for placing the sampling tube into the storage cylinder, ensuring that the sampling tube is quickly and accurately inserted into the inner wall of the sealing gasket.

[0011] Preferably, a rubber ring is fixedly connected to the top of the shield.

[0012] Preferably, a support frame is fixedly connected to the lower end of the inner wall of the storage cylinder, and the inner surface of the rubber ring contacts the outer surface of the support frame. The support frame and the rubber ring together achieve a seal at the connection between the storage cylinder and the shielding plate, preventing oil from seeping into the storage cylinder.

[0013] Preferably, a rotating ring is fixedly connected to the bottom end of the turntable, and the surface of the rotating ring is slidably connected to the upper end of the inner wall of the storage cylinder.

[0014] The beneficial effects of this utility model are:

[0015] 1. By using a sealing gasket, the upper end of the inner wall of the storage cylinder is sealed, ensuring that the sealing gasket is tightly attached to the upper end of the sampling tube surface. Through the first motor, turntable and through hole, oil from different depths inside the oil well flows into the corresponding sampling tube. Compared with the existing method of pouring the oil sample from the storage chamber into the storage tube, which easily leads to some oil remaining in the storage chamber, this method ensures the normal amount of test sample by guiding the oil into the sampling tube, thereby ensuring the test effect of the oil sample.

[0016] 2. The funnel-shaped guide cover, push rod, spring and rubber ball are used to accurately guide the sampling tube into the storage cylinder, ensuring that the sampling tube is quickly and accurately inserted into the inner wall of the sealing gasket. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the sampling mechanism structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the sampling mechanism of this utility model;

[0020] Figure 4 This is a cross-sectional view of the guide cover, support frame, rubber ring, and shielding plate of this utility model.

[0021] In the diagram: 1. Moving vehicle; 2. Rewinding reel; 3. Rope; 4. Sampling mechanism; 41. Counterweight; 42. Storage cylinder; 43. Turntable; 44. Through hole; 45. First motor; 46. Sampling tube; 47. Sealing gasket; 48. Cover plate; 49. Bolt; 410. Guide cover; 411. Support rod; 412. Rubber ball; 413. Spring; 414. Support frame; 415. Rubber ring; 416. Rotary ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In practical implementation: such as Figure 1-4 As shown, a rapid sampling and testing device for oilfield development includes: a mobile vehicle 1, with a winding wheel 2 rotatably connected to the upper surface of the mobile vehicle 1, and a rope 3 wound around the surface of the winding wheel 2; a sampling mechanism 4, including a counterweight 41 fixedly connected to the bottom end of the rope 3, a storage cylinder 42 fixedly connected to the lower surface of the counterweight 41, a sealing gasket 47 fixedly connected to the upper inner wall of the storage cylinder 42, a first motor 45 fixedly connected to the bottom end of the sealing gasket 47, a turntable 43 fixedly connected to the output shaft of the first motor 45, a through hole 44 opened at the top of the turntable 43, sampling tubes 46 arranged in a ring contacting the inner wall of the sealing gasket 47, and a rotating ring 416 fixedly connected to the bottom end of the turntable 43, the surface of the rotating ring 416 slidably connected to the upper inner wall of the storage cylinder 42. The sealing gasket 47 is a rubber component.

[0024] A second motor is fixedly connected to one side of the mobile vehicle 1. The output shaft of the second motor is fixedly connected to one end of the winding reel 2. Batteries are fixedly connected to the top of the mobile vehicle 1 and inside the storage cylinder 42. A position sensor is installed on the surface of the storage cylinder 42. An X-ray fluorescence sulfur analyzer is installed on the top of the mobile vehicle 1. The battery on the mobile vehicle 1 is used to power the X-ray fluorescence sulfur analyzer. The battery inside the storage cylinder 42 is used to power the first motor 45 and the position sensor.

[0025] Both the first motor 45 and the second motor are servo motors. Servo motors can control speed and have very accurate position. They can convert voltage signals into torque and speed to drive the controlled object. The rotor speed of the servo motor is controlled by the input signal and can respond quickly. In automatic control systems, they are used as actuators and have characteristics such as small electromechanical time constant and high linearity. They can convert the received electrical signals into angular displacement or angular velocity output on the motor shaft.

[0026] When it is necessary to sample and test the oil in the oil field, the mobile vehicle 1 is moved to the oil well where sampling is required, and the storage cylinder 42 is positioned directly above the oil well. At this time, the second motor is manually turned on, and the output shaft of the second motor rotates, driving the winding wheel 2 to rotate. The rotating winding wheel 2 loosens the rope 3, thereby slowly lowering the storage cylinder 42 into the oil well. The position sensor detects that the storage cylinder 42 has been lowered to the appropriate position, and the first motor 45 is automatically turned on. The output shaft of the first motor 45 rotates, driving the turntable 43 to rotate, so that the through hole 44 is open to the top of one of the sampling tubes 46. At this time, the oil in the oil well flows into one of the sampling tubes 46. The other sampling tubes 46 are sampled in the same way.

[0027] like Figure 3 As shown, the bottom end of the storage cylinder 42 is provided with a cover plate 48, and the inner wall of the cover plate 48 is threaded with annularly distributed bolts 49, and the surface of the bolts 49 is threaded to the lower end of the inner wall of the storage cylinder 42.

[0028] After sampling, turn on the X-ray fluorescence sulfur analyzer and connect a gas source such as nitrogen or helium. Ensure that the X-ray source, detector, and display screen are in normal working order. After completing the system self-test, preheat for more than 30 minutes to stabilize the working state. The output shaft of the second motor rotates and drives the rope 3 to wind up through the winding wheel 2, thereby moving the storage cylinder 42 to the upper part of the surface of the moving vehicle 1. At this time, use an electric screwdriver or other tools to move the bolt 49 away from the storage cylinder 42, pull the shield 48 to separate the shield 48 from the storage cylinder 42, so that the bottom of the storage cylinder 42 is open. Pull the sampling tube 46 to separate the sampling tube 46 from the storage cylinder 42. Shake the sampling tube 46 to fully mix the oil sample inside the sampling tube 46 to avoid stratification and uneven sulfur distribution. Place the sampling tube 46 into the X-ray fluorescence sulfur analyzer. Select the "Quantitative Measurement" mode according to the type of oil sample, such as crude oil or diesel, and set the excitation source energy (usually a high-energy X-ray beam), detector type, and measurement time (30-60 seconds). Input basic information such as sample number and oil type, save it to the instrument database, start the measurement program, and the X-ray will excite the sulfur element in the sample to generate a characteristic energy fluorescence signal. The detector will receive and record the spectral data in real time. The instrument software will automatically match the characteristic peak of sulfur element and convert the fluorescence intensity into a sulfur content value through the calibration curve. After the detection is completed, the X-ray fluorescence sulfur analyzer will directly display the sulfur content result of the oil sample.

[0029] like Figure 4 As shown, a ring-shaped guide cover 410 is fixedly connected to the lower end of the inner wall of the storage cylinder 42. The surface of the guide cover 410 is funnel-shaped. A ring-shaped abutment rod 411 is slidably connected to the surface of the guide cover 410. A rubber ball 412 is rolledly connected to the end of the abutment rod 411. A spring 413 is fixedly connected to the opposite end of the abutment rod 411 and the guide cover 410. A rubber ring 415 is fixedly connected to the top of the cover plate 48. A support frame 414 is fixedly connected to the lower end of the inner wall of the storage cylinder 42. The inner surface of the rubber ring 415 contacts the outer surface of the support frame 414.

[0030] Insert the neat sampling tube 46 into the guide cover 410 and push it upward, so that the elastic force of the spring 413 pushes the abutment rod 411 to move, so that the rubber ball 412 abuts against the surface of the sampling tube 46, thereby making the sampling tube 46 accurately and quickly inserted into the sealing gasket 47. Insert the other sampling tubes 46 into the sealing gasket 47 in the same way. Place the top of the cover plate 48 against the bottom of the storage cylinder 42, so that the inner surface of the rubber ring 415 contacts the outer surface of the support frame 414. Use an electric screwdriver to thread the bolt 49 into the cover plate 48 and the inner wall of the storage cylinder 42.

[0031] In use, the mobile vehicle 1 is moved to the oil well where sampling is required, and the storage cylinder 42 is positioned directly above the oil well. The second motor is then manually activated. The output shaft of the second motor rotates, loosening the rope 3 via the winding wheel 2, allowing the storage cylinder 42 to slowly descend into the oil well. A position sensor detects that the storage cylinder 42 has reached the appropriate position, and the first motor 45 is automatically activated. The output shaft of the first motor 45 rotates, causing the turntable 43 to rotate, opening the through hole 44 and the top of one of the sampling tubes 46. At this point, the oil in the oil well... The oil flows into one of the sampling tubes 46, and the other sampling tubes 46 are sampled in the same manner. After sampling is completed, the output shaft of the second motor rotates and drives the rope 3 to wind up through the winding wheel 2, thereby moving the storage tube 42 to the upper part of the surface of the moving vehicle 1. At this time, use an electric screwdriver or other tools to move the bolt 49 away from the storage tube 42, pull the cover plate 48 to separate the cover plate 48 from the storage tube 42, so that the bottom of the storage tube 42 is open, and pull the sampling tubes 46 respectively to remove the sampling tubes 46 from the storage tube 42.

[0032] It should be noted that the mobile vehicle 1, winding reel 2, rope 3, counterweight 41, bolt 49, first motor 45, second motor, battery, position sensor, and X-ray fluorescence sulfur analyzer mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the first motor 45, second motor, battery, position sensor, and X-ray fluorescence sulfur analyzer can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An oilfield development rapid sampling detection device, characterized in that, Include: The mobile car (1), the surface of the mobile car (1) is rotatably connected with the winding wheel (2), the surface of the winding wheel (2) is wound with the rope (3); The sampling mechanism (4) includes the counterweight (41) fixedly connected to the bottom end of the rope (3), the surface of the counterweight (41) is fixedly connected with the storage cylinder (42), the inner wall of the storage cylinder (42) is fixedly connected with the sealing pad (47), the bottom end of the sealing pad (47) is fixedly connected with the first motor (45), the output shaft of the first motor (45) is fixedly connected with the rotating disc (43), the top of the rotating disc (43) is provided with a through hole (44), and the inner wall of the sealing pad (47) is in contact with the annular sampling tube (46).

2. The device for rapid sampling and detecting of oilfield development according to claim 1, characterized in that: The bottom end of the storage cylinder (42) is provided with a shade disc (48), the inner wall of the shade disc (48) is threadedly connected with the annular bolt (49), and the surface of the bolt (49) is threadedly connected with the inner wall of the storage cylinder (42).

3. The device for rapid sampling and detecting of oilfield development according to claim 1, characterized in that: The inner wall of the storage cylinder (42) is fixedly connected with the annular guide cover (410), and the surface of the guide cover (410) is trumpet-shaped.

4. The device for rapid sampling and detecting of oilfield development according to claim 3, characterized in that: The surface of the guide cover (410) is slidably connected with the annular stop rod (411), the end of the stop rod (411) is rollingly connected with the rubber ball (412), and the opposite ends of the stop rod (411) and the guide cover (410) are fixedly connected with the spring (413).

5. The device for rapid sampling and detecting of oilfield development according to claim 2, characterized in that: The top of the shade disc (48) is fixedly connected with the rubber ring (415).

6. The device for rapid sampling and detecting of oilfield development according to claim 5, characterized in that: The inner wall of the storage cylinder (42) is fixedly connected with the support frame (414), and the inner surface of the rubber ring (415) is in contact with the outer surface of the support frame (414).

7. The device of claim 1, wherein: The bottom end of the rotating disc (43) is fixedly connected with the rotating ring (416), and the surface of the rotating ring (416) is slidably connected with the inner wall of the storage cylinder (42).

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