Search

CN-122016406-A - Petroleum distribution sampling equipment for petroleum exploitation

CN122016406ACN 122016406 ACN122016406 ACN 122016406ACN-122016406-A

Abstract

The invention discloses petroleum distribution sampling equipment for petroleum exploitation, which relates to the technical field of petroleum sampling and is characterized in that a first sampling cavity and a second sampling cavity are arranged in the sampling barrel, a first piston is slidably connected in the first sampling cavity, a second piston is slidably connected in the second sampling cavity, a transmission assembly is arranged between the first piston and the second piston, and after sampling is completed, the first piston moves to a preset position, the transmission assembly drives the second piston to move, so that petroleum is discharged. According to the petroleum distribution sampling equipment for petroleum exploitation, after sampling is completed, when the second piston in the second sampling cavity moves to a preset position, the second piston triggers the transmission assembly, so that the transmission assembly drives the first piston to move in the first sampling cavity, and further petroleum is discharged from the sampling tube.

Inventors

  • GAO YEPING
  • ZHANG JIAJIA
  • ZHU MAOLIN
  • CHEN YINGYU
  • GUO GUANGJIN

Assignees

  • 山东万洋石油科技有限公司

Dates

Publication Date
20260512
Application Date
20260228

Claims (9)

  1. 1. The petroleum distribution sampling equipment for petroleum exploitation comprises a sampling tube (1), and is characterized in that a first sampling cavity (1.1) and a second sampling cavity (1.2) are arranged in the sampling tube (1), a first piston (1.15) is connected in a sliding mode in the first sampling cavity (1.1), a central tube (1.4) is arranged at the axis position of the sampling tube (1), a sealing plug (1.16) is sleeved outside the central tube (1.4), the sealing plug (1.16) slides in the first sampling cavity (1.1), a second piston (1.20) is connected in the second sampling cavity (1.2) in a sliding mode, a transmission assembly is arranged between the first piston (1.15) and the second piston (1.20), the transmission assembly comprises three plug connectors (1.3) in the radial direction of the sampling tube (1), a first abutting block (1.30) which is abutted with the sealing plug (1.16) is arranged on each plug connector (1.3), and a second piston (1.20) is driven to move in a sliding mode after the first piston (1.20) is driven to move in a preset mode, and then the second piston (1.20) is driven to move in a preset mode.
  2. 2. The petroleum distribution sampling device for petroleum exploitation according to claim 1, wherein a central tube (1.4) is arranged at the axial center position of the sampling tube (1), and the central tube (1.4) is respectively connected with the first sampling cavity (1.1) and the second sampling cavity (1.2) in a penetrating way.
  3. 3. A petroleum distribution sampling apparatus for petroleum extraction according to claim 2, characterized in that a venturi portion (1.40) is provided at a penetration between the central tube (1.4) and the second sampling chamber (1.2), and a second ball plug (1.23) is slidingly connected to the inside of the venturi portion (1.40).
  4. 4. A petroleum distribution sampling device for petroleum exploitation according to claim 2, wherein the bottom end of the first sampling cavity (1.1) is slidably connected with a first piston (1.15) adapted thereto, and the first piston (1.15) is connected with the central tube (1.4) by a third spring (1.13).
  5. 5. A petroleum distribution sampling apparatus for petroleum extraction according to claim 4, characterized in that the end of the central tube (1.4) located at the position of the first sampling cavity (1.1) is slidingly connected with a first spherical plug (1.11), and the central tube (1.4) is provided with a pair of locking members for limiting the first spherical plug (1.11).
  6. 6. A petroleum distribution sampling apparatus for petroleum extraction according to claim 5, characterized in that said locking member comprises two plug blocks (1.03) slidably connected at the end of the central tube (1.4), each plug block (1.03) being connected to the central tube (1.4) by a first spring (1.02).
  7. 7. The petroleum distribution sampling equipment for petroleum exploitation according to claim 6, further comprising an unlocking piece, wherein the unlocking piece comprises a transmission block (1.04) which is connected to the tail end of the central tube (1.4) in a sliding mode, two hinging rods (1.05) are arranged between the transmission block (1.04) and each plugging block (1.03), one end of each hinging rod (1.05) is hinged to the transmission block (1.04), and the other end of each hinging rod (1.05) is hinged to the corresponding plugging block (1.03).
  8. 8. A petroleum distribution sampling device for petroleum extraction according to claim 7, characterized in that the end of the sealing plug (1.16) moving towards the end of the central tube (1.4) abuts the transmission block (1.04) such that the plug block (1.03) unlocks the first spherical plug (1.11).
  9. 9. The petroleum distribution sampling equipment for petroleum exploitation according to claim 8, wherein a wedge block (1.160) is slidingly connected to the sealing plug (1.16) in the radial direction, the wedge block (1.160) is connected to the sealing plug (1.16) through a fifth spring (1.161), and an abutting part matched with the wedge block (1.160) is arranged on the transmission block (1.04).

Description

Petroleum distribution sampling equipment for petroleum exploitation Technical Field The invention relates to the technical field of petroleum sampling, in particular to petroleum distribution sampling equipment for petroleum exploitation. Background The utility model discloses a (bulletin) No. CN120042591A, the publication (bulletin) No. 2025-05-27, the name is a petroleum distribution sampling equipment for petroleum exploitation, which relates to the technical field of petroleum exploitation sampling, and comprises a mounting plate, wherein a driving component is arranged in the mounting plate, the driving component is in transmission connection with a cross rod, the cross rod is in sliding connection with the inner wall of the mounting plate, a movable block is in sliding connection with the cross rod, a collecting box is fixedly connected with the bottom surface of the movable block, a sampling box is fixedly connected and communicated with the bottom surface of the collecting box, a plurality of groups of sampling components are symmetrically arranged on the sampling box, a hollow cylinder is fixedly arranged in the sampling box, and a material conveying box is in sliding connection with the hollow cylinder and is used for accommodating samples in the sampling components. The invention realizes flexible movement in a two-dimensional plane through sliding connection of the driving component and the moving block, can cover a wider sampling area, can collect samples at a plurality of positions simultaneously by designing a plurality of sampling components and the material conveying boxes, improves sampling efficiency, and can ensure sampling accuracy by accurately controlling the movement of the moving block and the material conveying boxes and the drilling depth of a drill rod. In the prior art including the above, after the sampling of the sampling device is completed, the user needs to drain the petroleum sample in each sampling tube at this time, and particularly, after the multi-point sampling, it is troublesome to pour the sample out of the sampling tube. Disclosure of Invention The invention aims to provide petroleum distribution sampling equipment for petroleum exploitation, which solves the defects in the prior art. In order to achieve the above object, the present invention provides the following technical solutions: The utility model provides an oil development is with oil distribution sampling equipment, includes the sampling tube, be provided with first sampling chamber and second sampling chamber in the sampling tube, sliding connection has first piston in the first sampling chamber, sliding connection has the second piston in the second sampling chamber, is provided with a drive assembly between first piston and the second piston, after the sample is accomplished, after first piston motion to preset position for drive assembly drives the second piston motion, and then realizes unloading oil. Preferably, a central tube is arranged at the axial center of the sampling tube, and the central tube is respectively connected with the first sampling cavity and the second sampling cavity in a penetrating way. Preferably, a venturi tube part is arranged at the through position between the central tube and the second sampling cavity, and a second spherical plug is connected inside the venturi tube part in a sliding manner. Preferably, the transmission assembly comprises three connectors which are connected in a sliding manner in the radial direction of the sampling cylinder, and each connector is provided with a first abutting block which is abutted with the sealing plug and a second abutting block which is used for limiting the second piston. Preferably, the bottom end of the first sampling cavity is slidably connected with a first piston matched with the first sampling cavity, and a third spring is arranged between the first piston and the central tube. Preferably, the tail end of the central tube, which is positioned at the position of the first sampling cavity, is slidably connected with a first spherical plug, and a pair of locking pieces for limiting the first spherical plug are arranged on the central tube. Preferably, the locking piece comprises two plug blocks which are connected with the tail end of the central tube in a sliding manner, and each plug block is connected with the central tube through a first spring. Preferably, the device further comprises an unlocking piece, wherein the unlocking piece comprises a transmission block which is connected to the tail end of the central tube in a sliding mode, two hinging rods are arranged between the transmission block and each splicing block, one end of each hinging rod is hinged to the transmission block, and the other end of each hinging rod is hinged to the splicing block which is arranged corresponding to the hinging rod. Preferably, the end of the sealing plug moving towards the end of the central tube abuts against the transmission block,