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CN-224200633-U - Drilling fracturing fluid supply switching device

CN224200633UCN 224200633 UCN224200633 UCN 224200633UCN-224200633-U

Abstract

The utility model discloses a well drilling fracturing fluid supply switching device which comprises a mounting pipe and a pump body, wherein the right end of the mounting pipe is fixedly connected with the inlet end of the pump body, a discharging pipe is fixedly arranged below the mounting pipe, a fixing pipe is fixedly arranged at the left end of the mounting pipe, a water tank is fixedly arranged on the fixing pipe, a mounting rod is fixedly arranged in the fixing pipe, a telescopic rod is slidably arranged in the mounting rod, a piston rod is slidably arranged in the telescopic rod, a fixing frame is fixedly arranged in the fixing pipe, a sliding plug is slidably sleeved on the fixing frame, flushing of residual impurities in the mounting pipe is realized through the fact that the arranged water tank is matched with the telescopic rod, the piston rod, the sliding plug and the like in the fixing pipe, residual fracturing fluid used in the last stage of the mounting pipe is cleaned, flushing water is discharged through the discharging pipe, and adverse effects on the fracturing fluid supply caused by mixing among different fracturing fluids are avoided.

Inventors

  • ZHANG LI
  • HAN WENFU
  • GUO XIAOBING
  • LIU MIAO
  • LONG QIANG
  • CHEN YALONG

Assignees

  • 定边县华诚石油工程有限公司

Dates

Publication Date
20260505
Application Date
20250609

Claims (7)

  1. 1. The drilling fracturing fluid supply switching device is characterized by comprising a mounting pipe (1) and a pump body (2), wherein the right end of the mounting pipe (1) is fixedly connected with the inlet end of the pump body (2), a liquid outlet pipe (3) is fixedly arranged at the outlet end of the pump body (2), a plurality of groups of branch pipes (4) are fixedly arranged above the mounting pipe (1), a plurality of groups of connecting pipes (5) which are correspondingly arranged with the branch pipes (4) are arranged above the mounting pipe (1), a rotary valve (6) is arranged between the branch pipes (4) and the connecting pipes (5), a discharging pipe (7) is fixedly arranged below the mounting pipe (1), a fixing pipe (8) is fixedly arranged at the left end of the mounting pipe (1), a water tank (9) is fixedly arranged on the fixing pipe (8), a mounting rod (10) is fixedly arranged in the fixing pipe (8), a piston rod (12) is fixedly arranged in the fixing rod (10) in a sliding manner, a piston rod (17) is fixedly arranged in the fixing pipe (8), and a sliding plug (19) is sleeved on the fixing rod (17).
  2. 2. The drilling fracturing fluid supply switching device of claim 1, wherein two groups of symmetrically distributed springs (18) are fixedly sleeved on the fixing frame (17), two ends of each spring (18) are fixedly connected with a sliding plug (19) and the fixing frame (17) respectively, a clamping ring (20) is fixedly installed in the fixing pipe (8), the sliding plug (19) is movably clamped with the clamping ring (20), and the water tank (9) is located between the piston rod (12) and the sliding plug (19).
  3. 3. The drilling fracturing fluid supply switching device according to claim 1, wherein the installation rod (10) is rotatably provided with a screw rod (13), the telescopic rod (11) is rotatably provided with a screw tube (15), the right end of the screw rod (13) penetrates through the telescopic rod (11) and is in threaded connection with the telescopic rod (11), and the right end of the screw tube (15) penetrates through the piston rod (12) and is in threaded connection with the piston rod (12).
  4. 4. The drilling fracturing fluid supply switching device of claim 3, wherein two groups of key grooves (14) which are symmetrically distributed are formed in the screw rod (13), two groups of key blocks (16) which are symmetrically distributed are arranged in the screw tube (15), the key blocks (16) are correspondingly arranged with the key grooves (14), and the screw tube (15) is in sliding sleeve joint with the screw rod (13) through the key blocks (16).
  5. 5. The drilling fracturing fluid supply switching device of claim 1, wherein the installation pipe (1) is rotatably provided with an installation ring (21), a scraping rod (22) is fixedly installed on the installation ring (21), the scraping rod (22) is attached to the inner wall of the installation pipe (1), a first toothed ring (25) is sleeved on the installation ring (21), the installation pipe (1) is rotatably provided with a first gear (26), and the first gear (26) is in meshed connection with the first toothed ring (25).
  6. 6. The drilling fracturing fluid supply switching device of claim 5, wherein the scraping rod (22) is sleeved with a scraping block (23) in a sliding mode, a screw rod (24) is rotatably installed on the scraping rod (22), and the screw rod (24) penetrates through the scraping block (23) and is in threaded connection with the scraping block (23).
  7. 7. The drilling fracturing fluid supply switching device of claim 1, wherein a swivel (27) is rotatably mounted on the discharge pipe (7), a second toothed ring (28) is sleeved on the swivel (27), a plurality of groups of closing plates (29) which are annularly distributed are rotatably mounted on the discharge pipe (7), a plurality of groups of closing plates (29) are rotatably connected with the discharge pipe (7) through a mounting shaft (30), a second gear (31) is sleeved on the mounting shaft (30), and a plurality of groups of second gears (31) are meshed with the second toothed ring (28).

Description

Drilling fracturing fluid supply switching device Technical Field The utility model relates to the technical field of fracturing fluid supply switching, in particular to a drilling fracturing fluid supply switching device. Background In the exploration and exploitation process of petroleum, natural gas and other resources, well drilling fracturing is a common technical means. The drilling fracturing is to form cracks in the rock by injecting high-pressure liquid or gas so as to increase the permeability and energy production of oil gas, and the drilling fracturing fluid supply switching device is a key device for the fracturing operation of oil and gas fields and is used for rapidly switching between different fluid supply sources so as to ensure the continuity and efficiency of the fracturing operation. In the prior art, different fracturing fluids enter subsequent fluid supplies through the same pipeline in the using process of the fracturing fluid supply switching device, the mixing among different fracturing fluids is unavoidable, the effect of the fluid supplies is influenced, residual sand is attached to the inner wall of the pipeline in the process of the prior art when the fracturing fluids circulate for a long time, the cleaning is inconvenient, and the circulation speed of the pipeline is influenced to a certain extent, so that the drilling fracturing fluid supply switching device is provided for solving the problems. Disclosure of utility model The utility model aims to provide a drilling fracturing fluid supply switching device which is used for solving the problems in the background technology. The drilling fracturing fluid supply switching device comprises a mounting pipe and a pump body, wherein the right end of the mounting pipe is fixedly connected with the inlet end of the pump body, a liquid outlet pipe is fixedly arranged at the outlet end of the pump body, a plurality of groups of branch pipes are fixedly arranged above the mounting pipe, a plurality of groups of connecting pipes which are correspondingly arranged with the branch pipes are arranged above the mounting pipe, a rotary valve is arranged between the branch pipes and the connecting pipes, a discharging pipe is fixedly arranged below the mounting pipe, a fixing pipe is fixedly arranged at the left end of the mounting pipe, a water tank is fixedly arranged on the fixing pipe, a mounting rod is fixedly arranged in the fixing pipe, a telescopic rod is slidably arranged in the mounting rod, a piston rod is slidably arranged in the telescopic rod, a fixing frame is fixedly arranged in the fixing pipe, and a sliding plug is slidably sleeved on the fixing frame. As a further preferable mode of the technical scheme, two groups of symmetrically distributed springs are fixedly sleeved on the fixing frame, two ends of each spring are fixedly connected with the sliding plug and the fixing frame respectively, a clamping ring is fixedly installed in the fixing pipe, the sliding plug is movably clamped with the clamping ring, and the water tank is located between the piston rod and the sliding plug. As a further preferable mode of the technical scheme, the installation rod is rotatably provided with a screw rod, the telescopic rod is rotatably provided with a screw pipe, the right end of the screw rod penetrates through the telescopic rod and is in threaded connection with the telescopic rod, and the right end of the screw pipe penetrates through the piston rod and is in threaded connection with the piston rod. As a further preferable mode of the technical scheme, two groups of key grooves which are symmetrically distributed are formed in the screw, two groups of key blocks which are symmetrically distributed are arranged in the screw, the key blocks are correspondingly arranged with the key grooves, and the screw is in sliding sleeve joint with the screw through the key blocks. As a further preferable mode of the technical scheme, the installation pipe is internally provided with an installation ring in a rotating mode, the installation ring is fixedly provided with a scraping rod, the scraping rod is attached to the inner wall of the installation pipe, a first toothed ring is sleeved on the installation ring, a first gear is rotatably installed in the installation pipe, and the first gear is meshed with the first toothed ring. As a further preferable mode of the technical scheme, the scraping rod is sleeved with the scraping block in a sliding mode, the screw rod is rotatably installed in the scraping rod, and the screw rod penetrates through the scraping block and is in threaded connection with the scraping block. As a further preferable mode of the technical scheme, the material discharging pipe is rotationally provided with a swivel, the swivel is sleeved with a second toothed ring, the material discharging pipe is rotationally provided with a plurality of groups of closing plates which are distributed annularly, the plurality of groups