Petroleum sampling device for petroleum geological exploration

Abstract

The utility model is applicable to the technical field of petroleum geological exploration, and discloses a petroleum sampling device for petroleum geological exploration, which is characterized in that fixed plates are fixedly mounted on the inner side of a tank body, a transmission rod is rotatably mounted in the middle end of each fixed plate through a sealing bearing, and a bidirectional screw rod is vertically and fixedly mounted between the outer sides of every two groups of transmission rods; the surfaces of the two ends of the outer side of each bidirectional lead screw are movably sleeved with transmission sleeves, push rods are hinged to the surfaces of the two ends of the outer side of each transmission sleeve through rotating shafts, sealing partition plates are movably embedded into the two ends of the outer side of the tank body, and the ends, away from the transmission sleeves, of the push rods are hinged to the outer sides of the sealing partition plates through rotating shafts. According to the technical scheme, after the tank body moves to the deep position of the rock stratum, the multiple sets of sealing partition plates can be moved out of the interior of the feeding groove, so that petroleum at different depths of the rock stratum automatically flows into the corresponding storage areas in the tank body, and the sampling quality and sampling efficiency of the petroleum at different positions in the rock stratum are improved.

Description

Technical Field

[0001] The utility model is applicable to the technical field of oil geological exploration, and particularly relates to an oil sampling device for oil geological exploration. Background Technique

[0002] At present, oil, one of the main objects of geological exploration, is a viscous, dark brown liquid, known as the "blood of industry". There is oil storage in some areas of the upper crust. Before oil is exploited, it is often necessary to use a sampling mechanism to penetrate deep into the rock formation to sample and detect the oil stored inside.

[0003] However, when the sampling tank is lowered into the rock formation through a rope to sample oil nowadays, the sampling tank can only sample oil at different depths according to the different positions where the rope is lowered, and it is impossible to sample and collect oil at different depths within the same range in a partitioned manner. As a result, when detecting the quality of oil at different positions, the operator needs to repeatedly move the sampling tank for sampling, which affects the sampling efficiency of oil. Therefore, we propose an oil sampling device for oil geological exploration. Content of the Utility Model

[0004] The main purpose of the utility model is to provide an oil sampling device for oil geological exploration, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] An oil sampling device for oil geological exploration, including a tank body, a fixing plate is fixedly installed inside the tank body, and the number of the fixing plates is several groups;

[0007] A transmission rod is rotatably installed inside the middle end of each fixing plate through a sealing bearing. A bidirectional lead screw is vertically fixedly installed between the outer sides of every two groups of transmission rods. Transmission sleeves are movably sleeved on the surfaces of both ends of the outer side of each bidirectional lead screw. Push rods are hinged to the surfaces of both ends of the outer side of each transmission sleeve through a rotating shaft;

[0008] Sealing partitions are movably inlaid and installed at both ends of the outer side of the tank body, and the ends of the push rods far away from the transmission sleeves are hinged to the outer sides of the sealing partitions through a rotating shaft.

[0009] By adopting the above technical solution, under the rotational driving action of the bidirectional lead screw on the transmission sleeve and under the transmission conversion action of the push rod, the vertical moving force of the transmission sleeve can be converted into a horizontal pushing and pulling force on the sealing partition plate. Furthermore, after the tank body moves to the deep part of the rock formation, multiple groups of sealing partition plates can be moved out from the inside of the feeding groove, so that the petroleum at different depths of the rock formation can automatically flow into the corresponding storage areas inside the tank body, improving the sampling quality and sampling efficiency of the petroleum at different positions inside the rock formation.

[0010] As an alternative embodiment of the technical solution of the present application, a servo motor is fixedly installed on the middle surface of the top of the tank body, and the bottom of the transmission shaft of the servo motor is fixedly connected to the top surface of the bidirectional lead screw through a coupling.

[0011] By adopting the above technical solution, through the driving action of the servo motor, it can provide the power source required for the rotation of the bidirectional lead screw.

[0012] As an alternative embodiment of the technical solution of the present application, connecting columns are vertically and fixedly installed on both sides of the middle of the top of the tank body. A fixed lifting ring is fixedly installed on the top surface of each connecting column, and the fixed lifting rings are located on both outer sides of the servo motor.

[0013] By adopting the above technical solution, under the structural action of the fixed lifting rings, it is convenient to carry out suspension and movement processing from the outside of the tank body.

[0014] As an alternative embodiment of the technical solution of the present application, feeding grooves are provided at both ends of the outer side of the tank body. The number of the feeding grooves is several groups, and the sealing partition plates are movably installed inside the feeding grooves. A sealing rubber ring is fixedly adhered to the inner side wall surface of each feeding groove, and the inner side of the sealing rubber ring is in contact with the outer side of the sealing partition plate.

[0015] By adopting the above technical solution, through the structural action of the sealing rubber ring, the sealing and protection quality of the feeding groove is improved.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] 1. An oil sampling device for petroleum geological exploration in the technical solution of the present application divides the interior of the tank into different storage areas by arranging multiple fixed plates inside the tank and combining the partitioning effect of the fixed plates. And by combining the transmission rod, multiple bidirectional lead screws are connected in transmission, so that when the servo motor rotates, it can drive the multiple bidirectional lead screws to rotate synchronously and in the same direction. Then, under the rotational transmission of the bidirectional lead screw on the transmission sleeve, the two transmission sleeves can move synchronously towards or away from each other. Under the transmission conversion of the push rod, the vertical moving force of the transmission sleeve can be converted into a horizontal pushing and pulling force on the sealing partition plate. Thus, after the tank moves to the deep rock formation, multiple sealing partition plates can be moved out from the feeding groove, enabling the oil at different depths of the rock formation to automatically flow into the corresponding storage areas inside the tank, improving the oil sampling quality and sampling efficiency at different positions inside the rock formation.

[0018] 2. An oil sampling device for petroleum geological exploration in the technical solution of the present application seals the gap between the sealing partition plate and the feeding groove by arranging a sealing rubber ring on the inner wall of the feeding groove, improving the sealing effect of the feeding groove and the sealing partition plate on the interior of the tank, and preventing the oil stored inside the tank from flowing out randomly during the vertical movement of the tank, which may affect the subsequent sampling and detection quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall sectional structure schematic diagram of an oil sampling device for petroleum geological exploration of the present utility model;

[0020] Figure 2 is the schematic side view structure diagram of the outer side of the tank of an oil sampling device for petroleum geological exploration of the present utility model;

[0021] Figure 3 is the schematic top - view sectional structure diagram of the bidirectional lead screw of an oil sampling device for petroleum geological exploration of the present utility model.

[0022] Reference numerals: 1, tank; 11, fixed plate; 2, transmission rod; 21, bidirectional lead screw; 22, transmission sleeve; 23, push rod; 24, servo motor; 25, sealing partition plate; 26, feeding groove; 3, sealing rubber ring; 4, fixed lifting ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] As Figures 1-3 shown, the present utility model provides a technical solution: An oil sampling device for petroleum geological exploration, on both sides of the middle of the top of the tank 1, connection columns are vertically and fixedly installed. On the surface of the top of each connection column, a fixed lifting ring 4 is fixedly installed, and the fixed lifting ring 4 is located on both outer sides of the servo motor 24.

[0024] In this technical solution (by Figure 1 、Figure 2 and Figure 3 As shown in Figure 3 , a fixing plate 11 is fixedly installed inside the tank body 1, and the number of the fixing plates 11 is several groups.

[0025] In this technical solution (as shown in Figure 1 , Figure 2 and Figure 3 ), a servo motor 24 is fixedly installed on the middle surface of the top of the tank body 1, and the bottom of the transmission shaft of the servo motor 24 is fixedly connected to the top surface of a bidirectional lead screw 21 through a coupling. A transmission rod 2 is rotatably installed inside the middle of each fixing plate 11 through a sealing bearing. A bidirectional lead screw 21 is vertically and fixedly installed between the outer sides of every two groups of transmission rods 2. Transmission sleeves 22 are movably sleeved on the outer surfaces of both ends of each bidirectional lead screw 21. Push rods 23 are hinged to the outer sides of each transmission sleeve 22 through rotating shafts.

[0026] In this technical solution (as shown in Figure 1 , Figure 2 and Figure 3 ), sealing partitions 25 are movably inlaid and installed at both ends of the outer side of the tank body 1, and the ends of the push rods 23 far away from the transmission sleeves 22 are hinged to the outer sides of the sealing partitions 25 through rotating shafts. Feeding grooves 26 are formed at both ends of the outer side of the tank body 1. The number of the feeding grooves 26 is several groups, and the sealing partitions 25 are movably installed inside the feeding grooves 26.

[0027] In some technical solutions (as shown in Figure 1 , Figure 2 and Figure 3 ), sealing rubber rings 3 are fixedly bonded to the inner side wall surfaces of each feeding groove 26, and the inner sides of the sealing rubber rings 3 are in fit with the outer sides of the sealing partitions 25.

[0028] During operation, after the locking hook is sleeved inside the fixed hanging ring 4, the tank body 1 is vertically placed synchronously under the action of the retraction and release of the external rope into the completed sampling pit. After the tank body 1 is moved and lowered to the corresponding depth inside the sampling rock formation, the servo motor 24 is turned on through the external control switch, and its operation drives the bidirectional lead screw 21 to rotate. Subsequently, under the driving action of the transmission rod 2, a plurality of bidirectional lead screws 21 rotate synchronously and in the same direction inside the tank body 1. Then, under the rotational driving action of the bidirectional lead screw 21 on the transmission sleeve 22, the transmission sleeves 22 located on both outer sides of the bidirectional lead screw 21 can move vertically towards each other synchronously. Through the transmission conversion action of the push rod 23, the vertical movement of the transmission sleeve 22 is converted into a horizontal outward driving force on the sealing partition plate 25, so that a plurality of sealing partition plates 25 can be pushed out from the inside of the feed slot 26 at the corresponding position on the outer side of the tank body 1. As a result, the petroleum at different positions outside the tank body 1 can flow into the space between the outer sides of the corresponding fixing plates 11 inside the tank body 1. After sampling and storing the petroleum at different positions inside the rock formation, the servo motor 24 is driven to drive the bidirectional lead screw 21 to rotate in the reverse direction. After repeating the above steps, the sealing partition plate 25 is pulled into the feed slot 26 for plugging treatment. Then, the tank body 1 is lifted out of the sampling pit, and the petroleum sample inside the tank body 1 is detected.

Claims

1. A petroleum sampling device for petroleum geological exploration, comprising a tank body (1), characterized in that: A fixing plate (11) is fixedly installed on the inner side of the tank body (1), and the number of the fixing plates (11) is a plurality of groups; A transmission rod (2) is rotatably mounted inside the middle end of each fixed plate (11) via a sealed bearing, a bidirectional screw rod (21) is vertically fixedly mounted between the outer sides of each two groups of transmission rods (2), a transmission sleeve (22) is movably sleeved on the outer side surfaces of each bidirectional screw rod (21), and a push rod (23) is hingedly connected to the outer side surfaces of each transmission sleeve (22) via a rotating shaft; Sealing baffles (25) are movably mounted on both ends of the outer side of the tank body (1), and one end of the push rod (23) away from the transmission sleeve (22) is hinged to the outer side of the sealing baffle (25) through a rotating shaft.

2. The petroleum sampling device for petroleum geological exploration according to claim 1, characterized in that: A servo motor (24) is fixedly mounted on the top middle surface of the tank body (1), and the bottom of the transmission shaft of the servo motor (24) is fixedly connected to the top surface of the bidirectional screw rod (21) via a coupling.

3. The petroleum sampling device for petroleum geological exploration according to claim 1, characterized in that: Connecting columns are vertically fixedly installed on both sides of the middle end of the top of the tank body (1).

4. The petroleum sampling device for petroleum geological exploration according to claim 1, characterized in that: Both ends of the outer side of the tank body (1) are provided with feed grooves (26), the number of the feed grooves (26) is a plurality of groups, and the sealing partition (25) is movably installed inside the feed grooves (26).

5. The petroleum sampling device for petroleum geological exploration according to claim 4, characterized in that: A sealing rubber ring (3) is fixedly bonded to the inner wall surface of each of the feed grooves (26), and the inner side of the sealing rubber ring (3) is in contact with the outer side of the sealing partition (25).

6. The petroleum sampling device for petroleum geological exploration according to claim 3, characterized in that: A fixed lifting ring (4) is fixedly mounted on the top surface of each connecting column, and the fixed lifting ring (4) is located on both sides of the outside of the servo motor (24).

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