A device for testing chemical viscosity reduction of thick oil under temperature and pressure

Abstract

The application discloses a kind of with temperature zone pressure viscous oil chemical viscosity reduction testing device, belong to viscous oil chemical viscosity reduction testing equipment technical field.A kind of with temperature zone pressure viscous oil chemical viscosity reduction testing device, including fixed seat, fixed seat upper side is fixed with test table, the upper side of rotating ring is annularly and equally spaced with multiple adjusting rods, multiple I-shaped rollers are annularly and equally spaced and are arranged at the edge near the inside of cavity, test table upper side is equipped with rotating annular table, the upper side of rotating annular table is annularly and equally spaced with multiple test barrel main bodies near the edge, the cooperation between structures makes the device through the design of rotating annular table, different test barrel main bodies can be placed in different chemical reagents, continuous and various tests are carried out, and the setting of the device reduces the steps of testing and the establishment of model, reduces workload, while ensuring the detection effect, while avoiding the situation that the influence of the previous reagent cannot be effectively removed after testing, improves the accuracy of test.

Description

Technical Field

[0001] The invention relates to the technical field of heavy oil chemical viscosity reduction testing equipment, and more particularly to a heavy oil chemical viscosity reduction testing device with temperature and pressure. Background Art

[0002] Heavy oil is the residual oil left after gasoline and diesel are extracted from crude oil. It is characterized by its high molecular weight and viscosity. Its specific gravity generally ranges from 0.82 to 0.95, and its calorific value is between 10,000 and 11,000 kcal / kg. It is primarily composed of hydrocarbons, with some sulfur and trace amounts of inorganic compounds. Heavy oil, also known as fuel oil, is a dark liquid. According to international conventions, heavy oil is classified as persistent oil. As the name suggests, this type of oil is relatively viscous and difficult to evaporate. Therefore, once it reaches shore, it is difficult to remove. It is primarily blended from atmospheric oil, vacuum residue oil, cracked residue oil, cracked diesel, and catalytic diesel oil, which are produced during crude oil processing. Heavy oil with a specific gravity exceeding 0.91 has high viscosity and contains large amounts of nitrogen, sulfur, wax, and metals, resulting in poor fluidity. When mined at well depths below 1,000 meters, the heavy oil begins to flow in the wellbore and is affected by the viscosity of the oil. To prevent this from affecting wellbore gathering and transportation, chemical reagents are generally added to reduce the viscosity of the heavy oil. Before adding chemical viscosity reducers to the wellbore, viscosity reduction tests are conducted using these reagents to screen for the optimal chemical viscosity reducer.

[0003] The prior art document CN106437655A provides a device and method for evaluating the effect of a heavy oil viscosity reducer. The device is equipped with a beam pumping unit model, a wellhead, a wellbore, a liquid storage tank, a heavy oil tank viscosity reducer tank, valves, an outlet pipeline, and an electronic control part. The beam pumping unit model is connected to the sucker rod and the piston of the deep well pump in the wellbore via a suspension rope and a load sensor. The pump barrel of the deep well pump is connected to the oil pipe. A casing is provided outside the oil pipe. A wellhead is provided at the upper part of the casing. An observation window is provided between the casing and the wellhead. The wellhead is connected to the liquid storage tank via a tee, a production valve, a back pressure valve, and a liquid outlet pipeline. The oil outlet valve of the heavy oil tank is connected to the bottom of the casing via the heavy oil outlet pipeline and the liquid inlet pipeline. Although the device has many beneficial effects, the following problems still exist: the device tests and evaluates the heavy oil viscosity reducer by setting up a model, which is labor-intensive and has the same effect as direct testing. In addition, unnecessary steps are added, and a lot of time is wasted from model making to testing. Only one reagent can be tested at a time. When changing reagents for testing, the influence of the previous reagent needs to be eliminated to avoid errors. At the same time, multiple reagents cannot be tested simultaneously, which increases the testing time.

[0004] Other existing viscosity reduction test devices, such as CN210293971U, require a gas storage tank and a complex gas circuit, and the entire test system is relatively dispersed and occupies a large space.

[0005] The document with the prior art publication number CN212904382U provides a temperature and pressure thick oil chemical viscosity reduction test device, which is composed of a tank cover, a temperature display, a pressure gauge, a pressure valve, a vent valve, a feed port, a discharge port, a tank body, an inner tank, a heating gasket, a rotational viscometer, and a support. A rotational viscometer is provided at the lower part of the inner tank, the pressure valve is connected to the inner tank, the feed port is fixedly connected to the inner interface of the lower part of the inner tank, the feed port is connected to the feed valve through a pipeline, the discharge port is fixedly connected to the inner interface of the upper part of the inner tank, the discharge port is connected to the discharge valve through a pipeline, a vent valve is provided on the upper part of the inner tank, and the vent valve is connected to the inner tank through a pipeline. Although the device has many beneficial effects, it still The following problems exist: the device tests heavy oil by setting up a test barrel and a feed valve. The device tests one reagent after one feeding, but cannot effectively eliminate the influence of the previous reagent after the test, resulting in large errors and the inability to test the optimal reagent well. At the same time, the device feeds through a switch valve and cannot control the size of the feed amount, thereby failing to ensure the invariance of the influencing factors, resulting in other variables in addition to the reagent, and thus failing to effectively determine whether it is affected by the optimal reagent. At the same time, the device cannot test multiple reagents at the same time to form a comparison, and the process of adding test raw materials is slow, the test process cycle is long, and the test effect and efficiency are improved.

[0006] In view of this, we propose a chemical viscosity reduction test device for heavy oil at temperature and pressure. Summary of the Invention

[0007] 1. Technical problems to be solved

[0008] The object of the present invention is to provide a device for testing the chemical viscosity reduction of thick oil at temperature and pressure, so as to solve the problems raised in the above background technology.

[0009] 2. Technical solution

[0010] A device for testing chemical viscosity reduction of warm and pressurized heavy oil comprises a fixed seat, a test bench is fixedly provided on the upper side of the fixed seat, a cavity is opened inside the test bench, a plurality of I-shaped rollers are arranged in a ring-shaped and equidistant manner near the edge of the cavity, a fixed column is fixedly provided on the upper side of the fixed seat, a chassis is provided on one side of the circumferential outer wall of the fixed seat, a first motor is provided inside the chassis, an output shaft of the first motor extends through the inner wall of the chassis and the outer wall of the test bench to the interior of the cavity and is coaxially connected to one of the I-shaped rollers, a rotating annular table is provided on the upper side of the test bench, an annular guide rail is provided on the circumferential inner wall of the rotating annular table, a limit block is provided on the upper side of the rotating annular table; a plurality of test barrel bodies are arranged in a ring-shaped and equidistant manner near the edge of the upper side of the rotating annular table, a heavy oil barrel is provided on one side of the circumferential outer wall of the fixed column, a sealing cylinder is provided on the lower side of the heavy oil barrel, and an oil supply pipe is provided on one side of the circumferential outer wall of the sealing cylinder.

[0011] Preferably, a display is provided on the upper side of the circumferential outer wall of the test barrel main body, a liquid outlet is provided on the lower side of the circumferential outer wall of the test barrel main body, a hollow sealing cover is provided on the upper side of the test barrel main body, a hollow ring is provided in the middle part of the inner part of the hollow sealing cover, the circumferential outer wall of the hollow ring is rotatably connected with an annular block, the upper side of the annular block is rotatably connected with an arc rod through a pin shaft in an annular shape at equal intervals, a plurality of arc sealing plates are provided in an annular shape at equal intervals inside the hollow sealing cover, a fixing ear is provided on the circumferential outer wall of the arc sealing plate, a spherical groove is opened on one side of the fixing ear, a telescopic rod is provided on one side of the inner part of the hollow sealing cover, a limiting ball is welded on the output end of the telescopic rod, a rotating ear is fixed in the middle part of the outer end of the telescopic rod, and a hinge seat is fixed on one side of the circumferential inner wall of the hollow sealing cover.

[0012] Preferably, an oil inlet pipe is provided on the upper side of the heavy oil barrel, a straight pipe is slidably connected to the inside of the sealing cylinder, a through hole is opened on one side of the circumferential outer wall of the straight pipe, the upper end of the straight pipe is connected to an oil measuring cup, the lower end of the straight pipe extends through the interior of the sealing cylinder to the outside and is welded with a control plate, the upper outer wall of the limit block is arranged in a wavy structure, the upper side of the limit block is in contact with the bottom surface of the control plate, and a return spring is provided on the upper side of the control plate.

[0013] Preferably, a booster ball is provided at the inner end of the oil supply pipe, a circular cavity is opened inside the booster ball, an inlet and outlet are opened on one side of the circumferential inner wall of the circular cavity, an organic cavity is opened on one side inside the booster ball, a second motor is provided inside the organic cavity, an output shaft of the second motor passes through the inner wall of the organic cavity and extends to the inside of the circular cavity and is sleeved with a sealing column, the sealing column is arranged in an eccentric structure, one side of the circumferential outer wall of the sealing column is fitted with one side of the inner wall of the circular cavity, a plurality of arc grooves are opened on the circumferential outer wall of the sealing column in an annular shape with equal intervals, a square groove is opened inside the arc groove, a push spring is provided in the middle of the inner wall of the square groove, a sliding block is provided at the outer end of the push spring, the middle of the outer side of the sliding block is rotatably connected to a support plate by a pin shaft, and the outer end of the support plate is rotatably connected to an annular sealing plate by a pin shaft.

[0014] Preferably, a rotating ring is provided in the middle of the cavity, and a plurality of adjusting rods are provided in a circular shape with equal intervals on the upper side of the rotating ring. An adjusting column is sleeved on the inner end of the adjusting rod, and the upper end of the adjusting column extends through the interior of the rotating annular table to the outside and is connected and fixed to the middle of the bottom surface of the test barrel body. The outer wall of the circumference of the rotating ring is frictionally connected to the middle of the outer wall of the circumference of the I-shaped roller.

[0015] Preferably, the upper end of the fixed column passes through the interior of the test bench and the interior of the rotating annular table and extends to the outside and is provided with an annular guide groove, and the annular guide groove is slidably connected to the annular guide rail.

[0016] Preferably, the outer side of the fixing ear is rotatably connected to the hole at the inner end of the arc rod through a pin, and the inner side of the arc sealing plate is rotatably connected to the hole on the upper outer wall of the hollow ring through a pin.

[0017] Preferably, the limiting ball is rotatably connected to the inner wall of the spherical groove, and the outer side of the hinge seat is rotatably connected to the hole on the outer side of the rotating ear through a pin.

[0018] Preferably, a plurality of notches are provided on the circumferential outer wall of the hollow ring, and the outer ends of the arc-shaped rods are gap-fitted with the notches.

[0019] Preferably, the inner diameter of the sealing cylinder is adapted to the diameter of the straight pipe, and the through hole is communicated with the inner end of the oil supply pipe.

[0020] Preferably, the lower end of the return spring is pressed against the upper outer wall of the control panel, and the upper end of the return spring is pressed against the bottom surface of the sealing cylinder.

[0021] Preferably, the oil supply pipe is arranged in an L-shaped structure, and the lower end of the oil supply pipe is perpendicular to and located above the middle part of the test barrel body.

[0022] Preferably, the arc-shaped groove is in clearance fit with the annular sealing plate, the annular sealing plate and the sealing column form a circular structure, and the square groove is slidably connected to the sliding block.

[0023] Preferably, the inner end of the push spring is pressed against the inner wall of the square groove, and the outer end of the push spring is pressed against the inner outer wall of the sliding block.

[0024] Preferably, the sizes of the sealing column, sliding block, annular sealing plate and supporting plate are adapted to the internal size of the circular cavity.

[0025] 3. Beneficial effects

[0026] Compared with the prior art, the advantages of the present invention are:

[0027] 1. The present invention is characterized in that a test bench is fixed on the upper side of a fixed seat, a rotating ring is provided in the middle of a cavity, a plurality of adjusting rods are provided in a circular shape with equal intervals on the upper side of the rotating ring, a plurality of I-shaped rollers are provided in a circular shape with equal intervals near the edge of the cavity, a first motor is provided inside a chassis, a rotating annular table is provided on the upper side of the test bench, a plurality of test barrel bodies are provided in a circular shape with equal intervals near the edge of the rotating annular table, and the coordination between the structures enables the device to place different chemical reagents in different test barrel bodies through the design of the rotating annular table, so as to carry out continuous and diverse tests. The setting of the device reduces the test steps and the establishment of the model, reduces the workload, ensures the detection effect, and avoids the situation where the influence of the previous reagent cannot be effectively removed after the test, thereby improving the accuracy of the test.

[0028] 2. The present invention provides a plurality of arc-shaped sealing plates in a circular shape with equal intervals inside the hollow sealing cover, the outer wall of the arc-shaped sealing plate is provided with a fixing ear, a thick oil barrel is provided on one side of the outer wall of the fixed column, a straight pipe is slidably connected to the inside of the sealing cylinder, the upper end of the straight pipe is connected to an oil measuring cup, and a return spring is provided on the upper side of the control plate, so that the device can feed a cup of thick oil after pushing the oil measuring cup once, and the arc-shaped sealing plate of the hollow sealing cover on the upper side automatically opens at this time to carry out the feeding work, and closes for testing after completion. The design of the oil measuring cup effectively controls the intake of thick oil, thereby effectively controlling the influencing variables, thereby ensuring the invariance of the influencing factors, and ensuring that only the reagent is a variable, so as to facilitate the accurate determination of the optimal reagent. At the same time, the device can test multiple reagents at the same time, thereby forming a comparison and improving the test effect and efficiency.

[0029] 3. The present invention provides a booster ball at the inner end of the oil supply pipe. The second motor output shaft extends through the inner wall of the engine cavity into the interior of the circular cavity and is sleeved with a sealing column. The outer circumferential wall of the sealing column is annularly provided with multiple arcuate grooves at equal intervals. The middle portion of the outer side of the sliding block is rotatably connected to a support plate via a pin. The outer end of the support plate is rotatably connected to an annular sealing plate via a pin. When the device is supplying oil, the booster ball allows heavy oil to quickly enter the interior of the test barrel body, thereby improving oil supply efficiency and preventing the heavy oil from flowing in due to poor fluidity.

[0030] 4. The present invention provides a wavy structure on the upper outer wall of the limit stop, which contacts the bottom surface of the control panel. The wavy structure allows the oil in the heavy oil barrel of the device to contact the bottom surface of the control panel through the upper side of the limit stop, causing the oil measuring cup to rise when full and stop adding oil. At the same time, the through hole is connected to the oil supply pipe to supply oil, otherwise it is closed. A display is provided on the upper outer wall of the circumference of the test barrel body. The inner end of the adjustment rod is sleeved with an adjustment column. The upper end of the adjustment column extends through the interior of the rotating annular platform to the outside and is fixedly connected to the middle of the bottom surface of the test barrel body. Due to the design of the adjustment rod, when the rotating ring drives the rotating annular platform to rotate, the adjustment rod is pulled and its rotation angle is limited, so that the display on one side is always outward, which is convenient for staff to observe. The liquid outlet on the other side is always outward in the other direction, which is convenient for staff to drain the oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0033] Figure 3 This is an expanded view of the internal structure of the rotating annular table of the present invention;

[0034] Figure 4 This is an expanded view of the internal structure of the hollow sealing cover of the present invention;

[0035] Figure 5 This is an expanded view of the internal structure of the heavy oil barrel of the present invention;

[0036] Figure 6 This is an expanded view of the internal structure of the oil supply pipe of the present invention;

[0037] Figure 7 This is an enlarged view of the structure at point A of the present invention;

[0038] Explanation of the reference numerals in the figure: 1. fixing seat; 101. fixing column; 102. annular guide groove; 2. test table; 201. cavity; 202. rotating ring; 203. adjusting rod; 204. I-shaped roller; 205. adjusting column; 3. chassis; 301. first motor; 4. rotating annular table; 401. annular guide rail; 402. limit stopper; 5. test barrel body; 501. liquid outlet; 502. hollow sealing cover; 503. hollow ring; 504. annular block; 505. arc rod; 506. arc sealing plate; 507. fixing ear; 508. spherical groove; 509. Telescopic rod; 5010, limit ball; 5011, rotating ear; 5012, hinge seat; 6, heavy oil barrel; 601, oil inlet pipe; 602, sealing cylinder; 603, straight pipe; 604, through hole; 605, oil measuring cup; 606, control board; 607, return spring; 7, oil supply pipe; 701, booster ball; 702, circular cavity; 703, inlet and outlet; 704, machine cavity; 705, second motor; 706, sealing column; 707, arc groove; 708, square groove; 709, push spring; 7010, sliding block; 7011, support plate; 7012, annular sealing plate. DETAILED DESCRIPTION

[0039] See also Figure 1-7 , the present invention provides a technical solution:

[0040] A device for testing chemical viscosity reduction of thick oil under temperature and pressure, comprising a fixed seat 1, a test table 2 fixed on the upper side of the fixed seat 1, a cavity 201 opened inside the test table 2, a rotating ring 202 provided in the middle of the cavity 201, a plurality of adjusting rods 203 provided in an annular manner and at equal intervals on the upper side of the rotating ring 202, a plurality of I-shaped rollers 204 provided in an annular manner and at equal intervals near the edge of the cavity 201, a fixed column 101 fixed on the upper side of the fixed seat 1, a chassis 3 provided on one side of the outer circumference of the fixed seat 1, a first motor 301 provided inside the chassis 3, a rotating annular table 4 provided on the upper side of the test table 2, an annular guide rail 401 provided on the inner circumference of the rotating annular table 4, a limit block 402 provided on the upper side of the rotating annular table 4, a plurality of test rollers 204 provided in an annular manner and at equal intervals near the edge of the rotating annular table 4 The test barrel body 5, the upper side of the outer circumference of the test barrel body 5 is provided with a display, the lower side of the outer circumference of the test barrel body 5 is provided with a liquid outlet 501, the upper side of the test barrel body 5 is provided with a hollow sealing cover 502, the middle part of the hollow sealing cover 502 is provided with a hollow ring 503, the outer circumference of the hollow ring 503 is rotatably connected with an annular block 504, the upper side of the annular block 504 is rotatably connected with an arc rod 505 through a pin shaft, the interior of the hollow sealing cover 502 is provided with a plurality of arc sealing plates 506 in an annular manner at equal intervals, the outer circumference of the arc sealing plate 506 is provided with a fixing ear 507, one of the fixing ears 507 is provided with a spherical groove 508 on one side, and a telescopic rod 509 is provided on one side of the inner part of the hollow sealing cover 502, and the output end of the telescopic rod 509 is welded with a limited A positioning ball 5010 is provided, a rotating ear 5011 is fixedly arranged at the middle part of the outer end of the telescopic rod 509, a hinge seat 5012 is fixedly arranged on one side of the inner wall of the hollow sealing cover 502, a thick oil barrel 6 is provided on one side of the outer wall of the fixed column 101, an oil inlet pipe 601 is provided on the upper side of the thick oil barrel 6, a sealing cylinder 602 is provided on the lower side of the thick oil barrel 6, an oil supply pipe 7 is provided on one side of the outer wall of the sealing cylinder 602, a straight pipe 603 is slidably connected to the inside of the sealing cylinder 602, a through hole 604 is opened on one side of the outer wall of the straight pipe 603, an upper end of the straight pipe 603 is connected to an oil measuring cup 605, the lower end of the straight pipe 603 passes through the inside of the sealing cylinder 602 and extends to the outside and is welded with a control board 606, a return spring 607 is provided on the upper side of the control board 606, a booster ball 701 is provided at the inner end of the oil supply pipe 7, and a booster ball 701 is provided at the inner end of the oil supply pipe 7. 01 is provided with a circular cavity 702, and an inlet and outlet 703 is provided on one side of the inner wall of the circular cavity 702. An organic cavity 704 is provided on one side of the booster ball 701. A second motor 705 is provided inside the organic cavity 704. The output shaft of the second motor 705 passes through the inner wall of the organic cavity 704 and extends to the inside of the circular cavity 702 and is sleeved with a sealing column 706. The outer wall of the sealing column 706 is provided with a plurality of arc grooves 707 at equal intervals in a circular shape. A square groove 708 is provided inside the arc groove 707. A push spring 709 is provided in the middle of the inner wall of the square groove 708. A sliding block 7010 is provided at the outer end of the push spring 709. The middle part of the outer side of the sliding block 7010 is rotatably connected to a support plate 7011 through a pin shaft. The outer end of the support plate 7011 is rotatably connected to an annular sealing plate 7012 through a pin shaft.The coordination between the structures enables the device to place different chemical reagents in different test barrel bodies 5 through the design of the rotating annular table 4, so as to perform continuous and diverse tests. The setting of the device reduces the test steps and model establishment, reduces the workload, and at the same time ensures the effect of the test. At the same time, it avoids the situation where the influence of the previous reagent cannot be effectively removed after the test, thereby improving the accuracy of the test.

[0041] Specifically, the outer circumference of the rotating ring 202 is frictionally connected to the middle portion of the outer circumference of the I-shaped roller 204. The output shaft of the first motor 301 extends through the inner wall of the chassis 3 and the outer wall of the test bench 2 into the interior of the cavity 201 and is coaxially connected to one of the I-shaped rollers 204. The rotation of the first motor 301 drives the I-shaped roller 204 to rotate, thereby driving the rotation of the rotating ring 202.

[0042] Furthermore, an adjustment column 205 is sleeved on the inner end of the adjustment rod 203. The upper end of the adjustment column 205 extends through the interior of the rotating ring platform 4 to the outside and is fixed to the middle of the bottom surface of the test barrel body 5. The rotation of the rotating ring 202 drives the rotating ring platform 4 to rotate. Due to the design of the adjustment rod 203, when the rotating ring 202 drives the rotating ring platform 4 to rotate, the adjustment rod 203 pulls and limits the rotation angle of the test barrel body 5. This ensures that the display on one side always faces outward, facilitating observation by staff, and the liquid outlet 501 on the other side always faces outward in the other direction, making it easier for staff to drain the oil.

[0043] Furthermore, the upper end of the fixed column 101 passes through the interior of the test table 2 and the rotating ring table 4 and extends to the outside and is provided with an annular guide groove 102, which is slidably connected to the annular guide rail 401, so that the rotating ring table 4 can only rotate.

[0044] Furthermore, the upper outer wall of the limit stop 402 is configured in a wavy structure, and the upper side of the limit stop 402 contacts the bottom surface of the control plate 606. Due to the wavy structure of the limit stop 402, the oil in the heavy oil barrel 6 of the device is allowed to pass through the upper side of the limit stop 402 and contact the bottom surface of the control plate 606, causing the oil measuring cup 605 to rise when filled with oil and stop the oil inflow. At the same time, the through hole 604 overlaps and connects with the oil supply pipe 7, allowing oil to be supplied, and otherwise closes the connection.

[0045] It is worth noting that the outer side of the fixing ear 507 is rotatably connected to the hole at the inner end of the arc rod 505 via a pin, and the inner side of the arc sealing plate 506 is rotatably connected to the hole on the upper outer wall of the hollow ring 503 via a pin. By rotating the arc rod 505 and cooperating with the two-point limit of the arc sealing plate 506, one of the arc sealing plates 506 is driven to move, and then, through the rotation of the annular block 504, the other arc sealing plates 506 are driven to move, thereby actually opening.

[0046] It is noteworthy that the stop ball 5010 is rotatably connected to the inner wall of the spherical groove 508, and the outer side of the hinge seat 5012 is rotatably connected to the hole outside the rotating ear 5011 via a pin. The design of the stop ball 5010 and the hinge seat 5012 adapts to the change in angle of the telescopic rod 509 during extension and retraction, thereby driving the movement of one of the arc-shaped sealing plates 506.

[0047] In addition, the outer wall of the hollow ring 503 is provided with a plurality of notches, and the outer ends of the arc rods 505 are fitted into the notches so that the arc rods 505 can be retracted when they are rotated to the innermost position, and the notches of the hollow ring 503 are completely closed.

[0048] In addition, the inner diameter of the sealing cylinder 602 is adapted to the diameter of the straight tube 603, and the through hole 604 is connected to the inner end of the oil supply pipe 7. The through hole 604 on the straight tube 603 is connected when it overlaps with the oil supply pipe 7, and can be effectively sealed when it does not overlap.

[0049] In addition, the lower end of the return spring 607 is pressed against the outer wall of the upper side of the control plate 606, and the upper end of the return spring 607 is pressed against the bottom surface of the sealing cylinder 602. By the design of the return spring 607, it can be reset and sealed when it does not conflict with the limit block 402.

[0050] In addition, the oil supply pipe 7 is arranged in an L-shaped structure, and the lower end of the oil supply pipe 7 is perpendicular to and located above the middle of the test barrel body 5, so that the oil supply pipe 7 can accurately perform the oil supply action.

[0051] In addition, the sealing column 706 is arranged in an eccentric structure, and one side of the outer wall of the sealing column 706 is in contact with one side of the inner wall of the circular cavity 702. The circular cavity 702 is divided into two parts by the sealing column 706.

[0052] In addition, the arc groove 707 is in clearance fit with the annular sealing plate 7012, the annular sealing plate 7012 and the sealing column 706 form a circular structure, and the square groove 708 is slidably connected to the sliding block 7010, so that the annular sealing plate 7012 can move inward and outward.

[0053] In addition, the inner end of the push spring 709 is pressed against the inner wall of the square groove 708, and the outer end of the push spring 709 is pressed against the inner outer wall of the sliding block 7010. The push spring 709 allows the annular sealing plate 7012 to always fit against the inner wall of the circular cavity 702.

[0054] In addition, the dimensions of the sealing post 706, the sliding block 7010, the annular sealing plate 7012, and the support plate 7011 are adapted to the internal dimensions of the circular cavity 702. Thus, the rotation of the sealing post 706 can increase the volume of the space on one side, creating a negative pressure for extraction, and then reduce the volume of the space, creating pressure for oil supply.

[0055] When the temperature-zone pressure heavy oil chemical viscosity reduction test device is needed, first, a proper amount of heavy oil to be tested is placed in the heavy oil barrel 6, and then different chemical viscosity reducers are quantitatively put into the test barrel body 5. At this time, the output shaft of the first motor 301 is rotated by the controller. Since the output shaft of the first motor 301 passes through the inner wall of the chassis 3 and the outer wall of the test table 2 and extends to the inside of the cavity 201 and is coaxially connected to one of the I-shaped rollers 204, the outer wall of the circumference of the rotating ring 202 is frictionally connected with the middle part of the outer wall of the circumference of the I-shaped roller 204. The rotation of the first motor 301 drives the I-shaped roller 204 to rotate, thereby driving the rotation of the rotating ring 202. The rotation of the rotating ring 202 drives the rotating annular table 4 to rotate. Through the design of the adjusting rod 203, due to the adjustment The inner end of the rod 203 is sleeved with an adjusting column 205, and the upper end of the adjusting column 205 extends through the inside of the rotating annular platform 4 to the outside and is connected and fixed to the middle of the bottom surface of the test barrel main body 5. At this time, when the rotating ring 202 drives the rotating annular platform 4 to rotate, the adjusting rod 203 is pulled and limits the rotation angle of the test barrel main body 5, so that the display on one side is always facing outward, which is convenient for the staff to observe, and the liquid outlet 501 on the other side is always facing outward in the other direction, which is convenient for the staff to drain the oil. When the test barrel main body 5 rotates to a certain angle following the rotating annular platform 4, since the upper side of the rotating annular platform 4 is provided with a limit stopper 402, and the upper outer wall of the limit stopper 402 is arranged in a wavy structure, the upper side of the limit stopper 402 abuts against the bottom surface of the control board 606. The wavy structure of the limit block 402 allows the oil in the thick oil barrel 6 of the device to come into contact with the bottom surface of the control panel 606 through the upper side of the limit block 402, causing the oil measuring cup 605 to rise up after being filled with oil and no longer add oil. At the same time, the through hole 604 coincides with and is connected to the oil supply pipe 7 to supply oil. At the same time, the controller drives the telescopic rod 509 to retract. Since the limit ball 5010 on the telescopic rod 509 is rotatably connected to the inner wall of the spherical groove 508, the outer side of the hinge seat 5012 is rotatably connected to the hole on the outer side of the rotating ear 5011 via a pin. The design of the limit ball 5010 and the hinge seat 5012 adapts to the change in the angle of the telescopic rod 509 during extension and retraction, thereby driving the movement of one of the arc-shaped sealing plates 506, and the outer side of the fixed ear 507 is connected via a pin. It is rotatably connected to the hole at the inner end of the arc rod 505, and the inner side of the arc sealing plate 506 is rotatably connected to the hole on the upper outer wall of the hollow ring 503 through a pin shaft. Through the rotation angle of the arc rod 505, the two-point limit of the arc sealing plate 506 is coordinated to drive one of the arc sealing plates 506 to move, thereby driving the other arc sealing plates 506 to move through the rotation of the annular block 504. In fact, it is opened, and oil is supplied. At the same time, the output shaft of the second motor 705 is driven to rotate. Since the output shaft of the second motor 705 passes through the inner wall of the machine cavity 704 and extends to the inside of the circular cavity 702 and is sleeved with a sealing column 706, and the sealing column 706 is arranged in an eccentric structure, one side of the outer wall of the circumference of the sealing column 706 is in contact with one side of the inner wall of the circular cavity 702.The circular cavity 702 is divided into two parts by the sealing column 706, and the size of the sealing column 706, the sliding block 7010, the annular sealing plate 7012 and the supporting plate 7011 are adapted to the size of the inner part of the circular cavity 702, and the inner end of the push spring 709 is pressed against the inner wall of the square groove 708, and the outer end of the push spring 709 is pressed against the inner outer wall of the sliding block 7010. The push spring 709 allows the annular sealing plate 7012 to always fit against the inner wall of the circular cavity 702, so that the space on one side can be opened by rotating the sealing column 706. The volume of the space becomes larger to form negative pressure for extraction, and then through rotation, the volume of the space is reduced to form pressure for oil supply. After the oil supply is completed, the lower end of the reset spring 607 is pressed against the upper outer wall of the control board 606, and the upper end of the reset spring 607 is pressed against the bottom surface of the sealing cylinder 602. The design of the reset spring 607 allows it to reset and seal when it does not conflict with the limit block 402. At this time, the test is carried out after the thermometer pressure is controlled by the test barrel main body 5, so that its data can be viewed through the display and compared.

Claims

1. A device for testing the chemical viscosity reduction of warm and pressurized heavy oil, comprising a fixing base, characterized in that: A test bench is fixed on the upper side of the fixed seat, and a cavity is opened inside the test bench, and a plurality of I-shaped rollers are arranged in a ring-shaped and equidistant manner near the edge of the cavity, a fixed column is fixed on the upper side of the fixed seat, and a chassis is provided on one side of the circumferential outer wall of the fixed seat, and a first motor is provided inside the chassis, and the output shaft of the first motor extends through the inner wall of the chassis and the outer wall of the test bench to the interior of the cavity and is coaxially connected to one of the I-shaped rollers, a rotating annular table is provided on the upper side of the test bench, an annular guide rail is provided on the circumferential inner wall of the rotating annular table, and a limit block is provided on the upper side of the rotating annular table; a plurality of test barrel bodies are arranged in a ring-shaped and equidistant manner near the edge of the upper side of the rotating annular table, a heavy oil barrel is provided on one side of the circumferential outer wall of the fixed column, a sealing cylinder is provided on the lower side of the heavy oil barrel, and an oil supply pipe is provided on one side of the circumferential outer wall of the sealing cylinder; A display is provided on the upper side of the circumferential outer wall of the test barrel body, a liquid outlet is provided on the lower side of the circumferential outer wall of the test barrel body, a hollow sealing cover is provided on the upper side of the test barrel body, a hollow ring is provided in the middle part of the interior of the hollow sealing cover, an annular block is rotatably connected to the circumferential outer wall of the hollow ring, an arc rod is rotatably connected to the upper side of the annular block through a pin shaft, a plurality of arc sealing plates are provided in annular form at equal intervals inside the hollow sealing cover, a fixing ear is provided on the circumferential outer wall of the arc sealing plate, a spherical groove is provided on one side of one of the fixing ears, a telescopic rod is provided on one side of the interior of the hollow sealing cover, a limiting ball is welded on the output end of the telescopic rod, a rotating ear is fixed at the middle part of the outer end of the telescopic rod, and a hinge seat is fixed on one side of the circumferential inner wall of the hollow sealing cover; An oil inlet pipe is provided on the upper side of the heavy oil barrel, a straight pipe is slidably connected to the inside of the sealing cylinder, a through hole is opened on one side of the circumferential outer wall of the straight pipe, the upper end of the straight pipe is connected to an oil measuring cup, the lower end of the straight pipe extends through the interior of the sealing cylinder to the outside and is welded to a control plate, the upper outer wall of the limit block is arranged in a wavy structure, the upper side of the limit block is in contact with the bottom surface of the control plate, and a return spring is provided on the upper side of the control plate.

2. The device for testing the chemical viscosity reduction of warm and pressurized heavy oil according to claim 1, characterized in that: A booster ball is provided at the inner end of the oil supply pipe, a circular cavity is opened inside the booster ball, an inlet and outlet are opened on one side of the inner circumferential wall of the circular cavity, an organic cavity is opened on one side inside the booster ball, a second motor is provided inside the organic cavity, an output shaft of the second motor passes through the inner wall of the organic cavity and extends to the inside of the circular cavity and is sleeved with a sealing column, the sealing column is arranged in an eccentric structure, one side of the outer circumferential wall of the sealing column is fitted with one side of the inner wall of the circular cavity, a plurality of arc grooves are opened on the outer circumferential wall of the sealing column in an annular shape with equal intervals, a square groove is opened inside the arc groove, a push spring is provided in the middle of the inner wall of the square groove, a sliding block is provided at the outer end of the push spring, the middle of the outer side of the sliding block is rotatably connected to a support plate by a pin shaft, and the outer end of the support plate is rotatably connected to an annular sealing plate by a pin shaft.

3. The device for testing the chemical viscosity reduction of thick oil at temperature and pressure according to claim 1, characterized in that: A rotating ring is provided in the middle of the cavity, and a plurality of adjusting rods are provided in a ring-shaped and equidistant pattern on the upper side of the rotating ring. An adjusting column is sleeved on the inner end of the adjusting rod. The upper end of the adjusting column extends through the interior of the rotating annular table to the outside and is connected and fixed to the middle of the bottom surface of the test barrel body. The outer wall of the circumference of the rotating ring is frictionally connected to the middle of the outer wall of the circumference of the I-shaped roller.

4. The device for testing the chemical viscosity reduction of thick oil at temperature and pressure according to claim 1, characterized in that: The upper end of the fixed column passes through the interior of the test table and the interior of the rotating annular table and extends to the outside and is provided with an annular guide groove, and the annular guide groove is slidably connected to the annular guide rail.

5. The device for testing the chemical viscosity reduction of thick oil at temperature and pressure according to claim 1, characterized in that: The outer side of the fixing ear is rotatably connected to the hole at the inner end of the arc rod through a pin shaft, and the inner side of the arc sealing plate is rotatably connected to the hole on the outer wall of the upper side of the hollow ring through a pin shaft.

6. The device for testing the chemical viscosity reduction of thick oil at temperature and pressure according to claim 1, characterized in that: The limiting ball is rotatably connected to the inner wall of the spherical groove, and the outer side of the hinge seat is rotatably connected to the hole on the outer side of the rotating ear through a pin shaft.

7. The device for testing the chemical viscosity reduction of thick oil at temperature and pressure according to claim 1, characterized in that: The outer wall of the hollow ring is provided with a plurality of notches, and the outer ends of the arc-shaped rods are gap-matched with the notches.

8. The device for testing the chemical viscosity reduction of thick oil at temperature and pressure according to claim 1, characterized in that: The inner diameter of the sealing cylinder is adapted to the diameter of the straight pipe, and the through hole is communicated with the inner end of the oil supply pipe.

9. The device for testing the chemical viscosity reduction of thick oil at temperature and pressure according to claim 1, characterized in that: The lower end of the return spring is pressed against the upper outer wall of the control panel, and the upper end of the return spring is pressed against the bottom surface of the sealing cylinder.

10. The device for testing the chemical viscosity reduction of warm and pressurized heavy oil according to claim 2, characterized in that: The oil supply pipe is arranged in an L-shaped structure, and the lower end of the oil supply pipe is perpendicular to and located above the middle part of the test barrel body.

11. The device for testing the chemical viscosity reduction of thick oil at temperature and pressure according to claim 2, characterized in that: The arc-shaped groove is in clearance fit with the annular sealing plate, the annular sealing plate and the sealing column form a circular structure, and the square groove is in sliding connection with the sliding block.

12. The device for testing the chemical viscosity reduction of warm and pressurized heavy oil according to claim 2, characterized in that: The inner end of the push spring is pressed against the inner wall of the square groove, and the outer end of the push spring is pressed against the inner outer wall of the sliding block.

13. The device for testing the chemical viscosity reduction of thick oil at temperature and pressure according to claim 2, characterized in that: The sizes of the sealing column, sliding block, annular sealing plate and supporting plate are adapted to the internal size of the circular cavity.

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