A dual flow rate measuring, adjusting, testing and sealing integrated instrument

Abstract

The present invention relates to the field of oilfield stratified water injection, and more specifically, to a dual-flow measurement, adjustment and sealing integrated instrument, which solves the problem of low efficiency that traditional instruments cannot complete the two processes of sealing and measurement and adjustment in one trip into the well. It includes a cable connector, a full-flow metering mechanism, a water nozzle adjustment mechanism, a sealing section mechanism for testing and testing, and a lower-layer water injection mechanism. The cable connector is located above the lower-layer water injection mechanism. A metering mechanism, a water nozzle adjustment mechanism, and a sealing section mechanism for testing and testing are sequentially arranged between the cable connector and the lower-layer water injection mechanism from top to bottom. The cable connector is used for power supply to the integrated instrument. The full-flow metering mechanism is used to cooperate with the sealing section mechanism for testing and testing to determine the state of the packer during the sealing stage and to measure the liquid flow of the upper and lower formations during the measurement and adjustment stage. The lower-layer water injection mechanism is used to measure the lower-layer water flow and cooperate with the sealing section mechanism for testing and testing to realize water injection of the lower formation. It is mainly used for entering the well to complete the sealing and measurement and adjustment processes.

Description

Technical Field

[0001] The invention belongs to the field of oil field stratified water injection, and in particular relates to a dual flow rate measuring, adjusting, testing and sealing integrated instrument. Background Art

[0002] In order to solve the technical problem that the conventional eccentric water distribution process cannot meet the needs of continuous thin interlayer subdivision water injection, the oil field has developed an eccentric integrated isolation water distributor, forming an eccentric integrated subdivision water injection process, which solves the problem of small card distance; the eccentric integrated subdivision water injection process developed by various oil fields has only realized online flow measurement and adjustment in terms of supporting measurement and adjustment and sealing verification technology, and the sealing verification and measurement and adjustment have not been integrated, and it is impossible to complete the measurement and adjustment and sealing verification operations in one well.

[0003] In terms of the supporting testing technology for water injection wells, the current concentric injection technology has achieved the integration of sealing, testing and adjustment. The conventional eccentric injection technology can also achieve the integration of sealing, testing and adjustment. However, the multiple thin interlayer subdivision water injection technology, especially the eccentric integrated subdivision water injection technology using a double-layer adjustable plug, still requires two operations to complete the testing and sealing, and the supporting testing technology is inefficient.

[0004] CN106401545A discloses a subdivision measuring and adjusting instrument for underground synchronous testing, which integrates upper and lower direct-reading flow rates and a mechanical arm, realizing synchronous testing and adjustment of two layers of flow, but cannot realize the online sealing function.

[0005] CN105156093A discloses a bridge-type concentric testing instrument for integrated testing, adjustment and sealing. It uses a motor to drive and control the radial expansion of the sealing rubber cylinder of the sealing inspection mechanism to fit the inner wall of the working cylinder of the concentric water distributor to achieve sealing inspection; and uses a motor to drive the flow adjustment mechanism to achieve water volume adjustment of the concentric water distributor. It realizes the integration of testing, adjustment and sealing of the concentric water injection process, but is not suitable for the eccentric water distribution process. Its adjustment mechanism is completely different from the adjustment of the eccentric water distribution process.

[0006] CN103147736A discloses an underground electrically controlled direct-reading seal inspection instrument for water injection wells, which utilizes a servo motor to drive a piston pump to pump water into a sealing bladder to radially expand and seal the water distribution holes of the main channel of the eccentric water distributor where the seal is located, and then performs online seal inspection through the wellhead "open, close, open" operation. It realizes online seal inspection using the eccentric water distribution process of a conventional bridge-type eccentric water distributor, but cannot achieve flow measurement and adjustment.

[0007] CN204113267U discloses a water injection well seal test and adjustment instrument, which uses a motor to drive a compression sealing ring to control the opening and closing of the flow channel, thereby realizing seal test and single-layer flow measurement and adjustment. It realizes the online seal test and measurement and adjustment of the eccentric water distribution process using a conventional bridge-type eccentric water distributor, but cannot realize the online seal test and flow measurement and adjustment of multiple thin-layer subdivided water injection processes, and the mechanical arm can only test and adjust one layer at a time when docking with the adjustable water nozzle.

[0008] Therefore, it has become an urgent problem to design an instrument that can cooperate with the eccentric integrated subdivision water injection process of the double-layer adjustable plugger and complete the two processes of sealing inspection and measurement and adjustment in one entry into the well. Summary of the invention

[0009] In view of this, the present invention aims to propose a dual-flow measurement, adjustment and sealing inspection integrated instrument to solve the problem of low efficiency of traditional instruments that cannot complete the two processes of sealing inspection and measurement and adjustment in one trip into the well.

[0010] To achieve the above-mentioned objectives, the present invention adopts the following technical scheme: a dual-flow measurement, adjustment and sealing verification integrated instrument, comprising a cable connector, a full-flow metering mechanism, a water nozzle adjustment mechanism, a sealing section verification mechanism and a lower-layer water injection mechanism, wherein the cable connector is located above the lower-layer water injection mechanism, and a metering mechanism, a water nozzle adjustment mechanism and a sealing section verification mechanism are sequentially arranged between the cable connector and the lower-layer water injection mechanism from top to bottom, the cable connector is used for powering the integrated instrument, the full-flow metering mechanism is used for cooperating with the sealing section verification mechanism to determine the state of the packer during the sealing verification stage and to measure the liquid flow of the upper and lower formations during the measurement and adjustment stage, and the lower-layer water injection mechanism is used for measuring the lower-layer water flow and cooperating with the sealing section verification mechanism to realize water injection of the lower formation.

[0011] Furthermore, the full flow metering mechanism includes an external magnetic flow meter probe and an in-pipe pressure probe, both of which are arranged on the outer wall of the full flow metering mechanism, and the cable connector is electrically connected to the full flow metering mechanism.

[0012] Furthermore, the water nozzle adjustment mechanism includes an adjustment mechanical arm and an adjustment arm driving motor for driving the adjustment mechanical arm, and the water nozzle adjustment mechanism is electrically connected to the full flow metering mechanism.

[0013] Furthermore, the testing sealing section mechanism includes an upper outer sleeve, a multi-core socket, an upper inner sleeve, a lower pressure probe, a double sealing leather cup assembly, an active sealing assembly, a wire-passing pressure guide shaft, an internal pressure guide flow hole, a middle sleeve, a lower outer sleeve, a pressure guide channel, a pin hole and a connecting sleeve assembly, the upper outer sleeve is located above the lower outer sleeve and the two are connected by the middle sleeve, the upper inner sleeve is threadedly connected to the upper inner side of the upper outer sleeve, the upper inner sleeve is symmetrically provided with internal pressure guide flow holes on the left and right sides, the multi-core socket is fixedly connected to the upper inner side of the upper inner sleeve for electrically connecting to the water nozzle adjustment mechanism and supplying power to the testing sealing section mechanism, the wire-passing pressure guide shaft is fixedly connected to the lower end of the multi-core socket and accommodated in the upper inner sleeve, the inner wall of the upper inner sleeve and the outer wall of the wire-passing pressure guide shaft are enclosed to form a first cavity, the wire-passing pressure guide shaft is provided with a pressure guide channel, the lower pressure probe is arranged at the outlet end of the pressure guide channel, the inlet end of the pressure guide channel and the two internal pressure guide channels The flow holes are all connected to the first cavity, and the double-sealed leather cup assembly is kept slidingly arranged between the upper outer sleeve and the middle sleeve and is kept in sliding connection with the upper inner sleeve. The double-sealed leather cup assembly is used to form a seal with the inner wall of the isolation water distributor during testing and guide the lower formation pressure at the lower water inlet of the isolation water distributor to the lower pressure probe through the internal pressure-conducting flow hole, the first cavity and the pressure guide channel in sequence. The upper part of the active sealing assembly is connected to the double-sealed leather cup assembly and is slidingly connected to the upper inner sleeve, the active sealing assembly is slidingly connected to the middle sleeve and the lower part is connected to the coupling sleeve assembly, the coupling sleeve assembly is connected to the lower end surface of the middle sleeve, and a second cavity is formed between the coupling sleeve assembly and the lower outer sleeve, the second cavity is connected to the pin hole through the middle sleeve, the active sealing assembly is used to drive the double-sealed leather cup assembly to move and change the closed state of the first cavity, the two pin holes are symmetrically arranged on the left and right sides of the upper inner sleeve, and the active sealing assembly is slidingly connected to the pin hole.

[0014] Furthermore, the double sealing leather cup assembly includes an upper sealing leather cup, an intermediate sleeve, an external pressure-conducting flow hole, a lower sealing leather cup and a compression sleeve, and the upper sealing leather cup, the intermediate sleeve, the lower sealing leather cup and the compression sleeve are sequentially connected from top to bottom, and the upper end of the upper sealing leather cup is fixedly connected to the upper outer sleeve, and the two external pressure-conducting flow holes are symmetrically arranged on the left and right sides of the intermediate sleeve and are always connected with the internal pressure-conducting flow holes at corresponding positions respectively, and the upper sealing leather cup, the intermediate sleeve, the lower sealing leather cup and the compression sleeve are all slidably connected to the upper inner sleeve, and the lower inner wall of the compression sleeve is slidably connected to the upper outer wall of the middle sleeve.

[0015] Furthermore, the active sealing assembly includes a force transmission sealing sleeve, a linked force transmission bolt, a wire-passing push rod, a fixed sleeve, a compression drive motor, a conductive protrusion, a circular socket, a lower step and a return spring. The upper end of the wire-passing push rod is slidably connected to the opening on the lower end surface of the wire-passing pressure guide shaft, and the lower end of the wire-passing push rod contacts the upper end surface of the fixed sleeve. The output end of the compression drive motor is used to drive the fixed sleeve to rotate and the two can slide relative to each other. Circular sockets are symmetrically provided on the left and right sides of the lower part of the compression sleeve, and linked force transmission bolts are symmetrically provided on the left and right sides of the force transmission sealing sleeve. Bolt, the two linked force transmission bolts are correspondingly engaged in the circular jacks at corresponding positions, a return spring is arranged in the force transmission sealing sleeve, and the two ends of the return spring are respectively connected to the lower end surface of the wire-passing pressure-guiding shaft and the bottom wall of the force transmission sealing sleeve, a cavity is arranged on the force transmission sealing sleeve, and when the return spring is in a relaxed state, the inlet end of the cavity is connected with the latch hole, and the outlet end is connected with the first cavity, the wire-passing push rod is sequentially provided with a conduction protrusion and a lower step from top to bottom for pushing the force transmission sealing sleeve to move, and the bottom wall of the force transmission sealing sleeve is arranged between the conduction protrusion and the lower step.

[0016] Furthermore, the outer wall of the lower end of the wire-passing pressure-guiding shaft and the outer wall of the upper end of the force-transmitting sealing sleeve are both provided with sealing rings.

[0017] Furthermore, the coupling sleeve assembly includes an inner coupling sleeve, an outer coupling sleeve, a lower plug-in sleeve and a single-core socket. The upper end surface of the inner coupling sleeve is connected to the lower end surface of the middle coupling sleeve. The lower end of the inner coupling sleeve is connected to the outer coupling sleeve and the lower plug-in sleeve in sequence. The single-core socket is arranged on the lower side of the lower plug-in sleeve. The fixed sleeve is threadedly connected to the inner wall of the outer coupling sleeve. The compression drive motor is arranged in the lower plug-in sleeve. The single-core socket is electrically connected to the multi-core socket.

[0018] Furthermore, the lower water injection mechanism includes a single-core lower plug, a lower connecting shaft, a lower connecting sleeve, a collecting inlet sleeve, a middle sleeve, an electronic warehouse sleeve, a circuit warehouse, a lower wire shaft, a lower collecting metering section, a lower collecting inlet, a lower collecting flow hole and a sealing assembly. The single-core lower plug is electrically connected to the single-core socket, the lower end of the single-core lower plug is connected to the lower connecting shaft, the upper part of the lower connecting shaft is threadedly connected to the lower end inner wall of the lower sleeve, the lower side of the lower connecting shaft is provided with an electronic warehouse sleeve, and the lower connecting shaft and the electronic warehouse sleeve are connected with the lower connecting sleeve, the collecting inlet sleeve and the electronic warehouse sleeve from top to bottom in sequence. The circuit compartment is arranged in the electronic compartment housing, the lower connecting shaft is eccentrically provided with a lower collecting flow hole, the upper end of the lower collecting flow hole is communicated with the second cavity, the upper end of the lower wire shaft is threadedly connected with the lower end of the lower connecting shaft, the lower end of the lower wire shaft is connected with the sealing assembly, the two ends of the sealing assembly are respectively connected with the collecting inlet sleeve and the middle outer sleeve, the lower collecting metering section is provided with the upper part of the inner cavity of the collecting inlet sleeve, the collecting inlet sleeve is provided with a lower collecting inlet, the lower collecting inlet and the lower end of the lower collecting flow hole are communicated with the third cavity enclosed by the collecting inlet sleeve and the lower wire shaft.

[0019] Furthermore, the integrated instrument also includes a guide claw assembly, and the guide claw assembly is arranged at the lower part of the electronic compartment outer cover.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By controlling the compression degree of the double-seal leather cup assembly and combining it with the flow meter, the two working states of seal inspection and side adjustment can be switched, so that two tasks can be completed in one well entry, improving work efficiency;

[0022] 2. Improve the efficiency of the supporting testing process of the eccentric integrated subdivision water injection process by saving process steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations of the present invention.

[0024] In the figure:

[0025] Figure 1 This is a schematic diagram of the overall structure of a dual-flow rate measuring, adjusting, testing and sealing integrated instrument according to the present invention;

[0026] Figure 2 It is a structural schematic diagram of the testing and sealing section mechanism of the present invention;

[0027] Figure 3 The present invention Figure 3 A partial enlarged structural schematic diagram of part A;

[0028] Figure 4 The present invention Figure 3 A schematic diagram of a partially enlarged structure of part B;

[0029] Figure 5 The present invention Figure 3 A schematic diagram of the local enlarged structure of part C;

[0030] Figure 6 It is a structural schematic diagram of the lower layer water injection mechanism of the present invention;

[0031] Figure 7 The present invention Figure 7 Schematic diagram of the partial enlarged structure of part D.

[0032] Figure 8 The present invention Figure 7 Schematic diagram of the partial enlarged structure of part E.

[0033] Fig. 9 The present invention Figure 7 Schematic diagram of the partial enlarged structure of part F.

[0034] Cable connector 1; full flow metering mechanism 2; external magnetic flowmeter probe 201; in-pipe pressure probe 202; water nozzle adjustment mechanism 3; adjustment mechanical arm 301; adjustment arm drive motor 302; seal section inspection mechanism 4; upper outer sleeve 401; multi-core socket 402; upper inner sleeve 403; lower pressure probe 404; upper sealing leather cup 405; wire-passing pressure-guiding shaft 406; middle sleeve 407; external pressure-guiding flow hole 408; lower sealing leather cup 409; internal pressure-guiding flow hole 410; force transmission sealing sleeve 411; compression sleeve 412; linkage force transmission bolt 413; wire-passing push rod 414; sealing ring 415; middle sleeve 416; inner sleeve 417; external connection Sleeve 418; fixing sleeve 419; compression drive motor 420; lower plug sleeve 421; single-core socket 422; lower outer sleeve 423; conduction protrusion 424; pressure guide channel 425; pin hole 426; circular plug hole 427; lower step 428; return spring 429; lower water injection mechanism 5; single-core lower plug 501; lower connecting shaft 502; lower connecting outer sleeve 503; collecting inlet sleeve 504; middle outer sleeve 505; electronic compartment outer sleeve 506; guide claw assembly 507; lower motor and circuit compartment 508; lower wire shaft 509; lower collecting metering section 510; lower collecting inlet 511; lower collecting flow hole 512; sealing assembly 513. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely explain the technical solutions in the embodiments of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Specific implementation method one:

[0037] See attached Figure 1-9 To illustrate the present embodiment, a dual-flow measurement, adjustment and sealing verification integrated instrument comprises a cable connector 1, a full-flow metering mechanism 2, a water nozzle adjusting mechanism 3, a sealing section verification mechanism 4 and a lower-layer water injection mechanism 5, wherein the cable connector 1 is located above the lower-layer water injection mechanism 5, and the metering mechanism 2, the water nozzle adjusting mechanism 3 and the sealing section verification mechanism 4 are sequentially arranged between the cable connector 1 and the lower-layer water injection mechanism 5 from top to bottom, wherein the cable connector 1 is used for powering the integrated instrument, the full-flow metering mechanism 2 is used for cooperating with the sealing section verification mechanism 4 in the sealing verification stage to determine the state of the packer and for measuring the liquid flow of the upper and lower formations in the measurement and adjustment stage, and the lower-layer water injection mechanism 5 is used for measuring the lower-layer water flow and cooperating with the sealing section verification mechanism 4 to realize water injection of the lower formation.

[0038] In this embodiment, the full flow metering mechanism 2 includes an external magnetic flow meter probe 201 and an in-pipe pressure probe 202, and the external magnetic flow meter probe 201 and the in-pipe pressure probe 202 are both arranged on the outer wall of the full flow metering mechanism 2, and the cable connector 1 is electrically connected to the full flow metering mechanism 2.

[0039] In this embodiment, the water nozzle adjustment mechanism 3 includes an adjustment mechanical arm 301 and an adjustment arm driving motor 302 for driving the adjustment mechanical arm 301 , and the water nozzle adjustment mechanism 3 is electrically connected to the full flow metering mechanism 2 .

[0040] In this embodiment, the testing seal section mechanism 4 includes an upper outer sleeve 401, a multi-core socket 402, an upper inner sleeve 403, a lower pressure probe 404, a double-sealed leather cup assembly, an active sealing assembly, a wire-passing pressure-conducting shaft 406, an internal pressure-conducting flow hole 410, a middle sleeve 416, a lower outer sleeve 423, a pressure guide channel 425, a pin hole 426 and a sleeve assembly. The upper outer sleeve 401 is located above the lower outer sleeve 423 and the two are connected by the middle sleeve 416. The upper inner sleeve 403 is threadedly connected to the upper inner part of the upper outer sleeve 401. The left and right sides are symmetrically provided with internal pressure-conducting flow holes 410. The multi-core socket 402 is fixedly connected to the upper inner part of the upper inner sleeve 403 for electrically connecting with the water nozzle adjustment mechanism 3 and supplying power to the testing sealing section mechanism 4. The wire-passing pressure-conducting shaft 406 is fixedly connected to the lower end of the multi-core socket 402 and accommodated in the upper inner sleeve 403. The inner wall of the upper inner sleeve 403 and the outer wall of the wire-passing pressure-conducting shaft 406 are combined to form a first cavity. The wire-passing pressure-conducting shaft 406 is provided with a pressure guide channel 425. The lower pressure probe 404 is arranged at the outlet end of the pressure guide channel 425. The inlet end of the pressure guide channel 425 and the two inner pressure-conducting holes 410 are both connected to the first cavity. The double-sealed leather cup assembly is slidably arranged between the upper outer sleeve 401 and the middle sleeve 416 and is slidably connected to the upper inner sleeve 403. The double-sealed leather cup assembly is used to form a seal with the inner wall of the isolation water distributor during testing and guide the lower formation pressure at the lower water inlet of the isolation water distributor to the lower pressure probe 404 through the inner pressure-conducting hole 410, the first cavity and the pressure guide channel 425 in sequence. The upper part of the active sealing assembly is connected to the double-sealed leather cup assembly. The active sealing assembly is slidably connected to the upper inner sleeve 403, the active sealing assembly is slidably connected to the middle sleeve 416 and the lower part is connected to the coupling assembly, the coupling assembly is connected to the lower end surface of the middle sleeve 416, a second cavity is formed between the coupling assembly and the lower outer sleeve 423, the second cavity is connected to the latch hole 426 through the middle sleeve 416, the active sealing assembly is used to drive the double sealing leather cup assembly to operate and change the closed state of the first cavity, the two latch holes 426 are symmetrically arranged on the left and right sides of the upper inner sleeve 403, and the active sealing assembly is slidably connected to the latch hole 426.

[0041] In this embodiment, the double sealing leather cup assembly includes an upper sealing leather cup 405, an intermediate sleeve 407, an external pressure-conducting flow hole 408, a lower sealing leather cup 409 and a compression sleeve 412. The upper sealing leather cup 405, the intermediate sleeve 407, the lower sealing leather cup 409 and the compression sleeve 412 are connected in sequence from top to bottom. The upper end of the upper sealing leather cup 405 is fixedly connected to the upper outer sleeve 401. The two external pressure-conducting flow holes 408 are symmetrically arranged on the left and right sides of the intermediate sleeve 407 and are always connected with the internal pressure-conducting flow holes 410 at the corresponding positions. The upper sealing leather cup 405, the intermediate sleeve 407, the lower sealing leather cup 409 and the compression sleeve 412 are all slidably connected to the upper inner sleeve 403, and the lower inner wall of the compression sleeve 412 is slidably connected to the upper outer wall of the middle sleeve 416.

[0042] In this embodiment, the active sealing assembly includes a force transmission sealing sleeve 411, a linked force transmission bolt 413, a wire-passing push rod 414, a fixed sleeve 419, a compression drive motor 420, a conduction protrusion 424, a circular socket 427, a lower step 428 and a return spring 429. The upper end of the wire-passing push rod 414 is slidably connected to the opening on the lower end surface of the wire-passing pressure guide shaft 406, and the lower end of the wire-passing push rod 414 is in contact with the upper end surface of the fixed sleeve 419. The output end of the compression drive motor 420 is used to drive the fixed sleeve 419 to rotate and the two can slide relative to each other. Circular sockets 427 are symmetrically provided on the left and right sides of the lower part of the compression sleeve 412. Linked force transmission bolts 413 are symmetrically provided on the left and right sides of the force transmission sealing sleeve 411. The two linked force transmission bolts 413 correspond to The circular jack 427 which is engaged in the corresponding position, has a return spring 429 in the force transmission sealing sleeve 411, and both ends of the return spring 429 are respectively connected to the lower end surface of the wire-passing pressure-guiding shaft 406 and the bottom wall of the force transmission sealing sleeve 411; a cavity is provided on the force transmission sealing sleeve 411; when the return spring 429 is in a relaxed state, the inlet end of the cavity is connected to the latch hole 426, and the outlet end is connected to the first cavity; the wire-passing push rod 414 is provided with a conduction protrusion 424 and a lower step 428 from top to bottom for pushing the force transmission sealing sleeve 411 to move; the bottom wall of the force transmission sealing sleeve 411 is arranged between the conduction protrusion 424 and the lower step 428; the outer wall of the lower end of the wire-passing pressure-guiding shaft 406 and the outer wall of the upper end of the force transmission sealing sleeve 411 are both provided with a sealing ring 415.

[0043] In this embodiment, the coupling sleeve assembly includes an inner coupling sleeve 417, an outer coupling sleeve 418, a lower plug-in sleeve 421 and a single-core socket 422. The upper end surface of the inner coupling sleeve 417 is connected to the lower end surface of the middle coupling sleeve 416. The lower end of the inner coupling sleeve 417 is sequentially connected to the outer coupling sleeve 418 and the lower plug-in sleeve 421. The single-core socket 422 is arranged on the lower side of the lower plug-in sleeve 421. The fixed sleeve 419 is threadedly connected to the inner wall of the outer coupling sleeve 418. The compression drive motor 420 is arranged in the lower plug-in sleeve 421. The single-core socket 422 is electrically connected to the multi-core socket 402.

[0044] In this embodiment, the lower water injection mechanism 5 includes a single-core lower plug 501, a lower connecting shaft 502, a lower connecting sleeve 503, a collecting inlet sleeve 504, a middle sleeve 505, an electronic warehouse sleeve 506, a circuit warehouse 508, a lower wire shaft 509, a lower collecting metering section 510, a lower collecting inlet 511, a lower collecting flow hole 512 and a sealing assembly 513. The single-core lower plug 501 is electrically connected to the single-core socket 422, and the lower end of the single-core lower plug 501 is connected to the lower connecting shaft 502. The upper part of the lower connecting shaft 502 is threadedly connected to the inner wall of the lower end of the lower sleeve 423. The lower side of the lower connecting shaft 502 is provided with an electronic warehouse sleeve 506. The lower connecting sleeve 503, the collecting inlet sleeve 504 and the middle sleeve 505 are connected to the lower connecting shaft 502 and the electronic warehouse sleeve 506 from top to bottom in sequence. 08 is arranged in the electronic warehouse outer sleeve 506, and a lower collecting flow hole 512 is eccentrically arranged on the lower connecting shaft 502, and the upper end of the lower collecting flow hole 512 is connected to the second cavity, and the upper end of the lower wire shaft 509 is threadedly connected to the lower end of the lower connecting shaft 502, and the lower end of the lower wire shaft 509 is connected to the sealing assembly 513, and the two ends of the sealing assembly 513 are respectively connected to the collecting inlet sleeve 504 and the middle sleeve 505, and the lower collecting metering section 510 is arranged on the upper part of the inner cavity of the collecting inlet sleeve 504, and the collecting inlet sleeve 504 is provided with a lower collecting inlet 511, and the lower collecting inlet 511 is connected to the lower end of the lower collecting flow hole 512 through the third cavity enclosed by the collecting inlet sleeve 504 and the lower wire shaft 509, and the integrated instrument also includes a guide claw assembly 507, and the guide claw assembly 507 is arranged at the lower part of the electronic warehouse outer sleeve 506.

[0045] When in use, a dual-flow measurement, adjustment and sealing integrated instrument is lowered into an eccentric integrated subdivided water injection well, passed through the isolation water distributor and then lifted up to exit the isolation water distributor, the guide claw assembly 507 pops out and opens, the ground issues an arm opening command, the regulating mechanical arm 301 opens under the drive of the regulating arm driving motor 302, the instrument is lowered into the isolation water distributor, the guide claw assembly 507 rotates the instrument, the regulating mechanical arm 301 enters the guide groove of the isolation water distributor, the instrument continues to be lowered, the head of the regulating mechanical arm 301 is aligned with the inside of the isolation water distributor, and the regulating mechanical arm 301 is rotated to rotate the instrument. The two layers of adjustable plugs are docked, and at this time, the external pressure-conducting flow hole 408 on the middle sleeve 407 corresponds to the lower water inlet hole of the isolation water distributor, and the upper and lower sealing leather cups are located on both sides of the lower water inlet hole. Water can flow through the annular space between the instrument and the inner hole of the isolation water distributor. The in-pipe pressure probe 202 on the full-flow metering mechanism 2 directly obtains the pressure in the injection pipe, the lower pressure probe 404 displays the pressure in the pipe at the location, the external magnetic flowmeter probe 201 displays the full well flow, and the lower collecting metering section 510 displays 0.

[0046] When checking the seal, the ground sends a seal inspection command, and the compression drive motor 420 starts to operate. The compression drive motor 420 will drive the fixed sleeve 419 to rotate. When the fixed sleeve 419 rotates, it drives the fixed sleeve 419 to move upward through the cooperation of the inner sleeve 417. The fixed sleeve 419 will push the wire push rod 414 to move upward. After the lower step 428 of the wire push rod 414 contacts the lower end of the force transmission sealing sleeve 411, the force transmission sealing sleeve 411 moves upward and enters the first cavity enclosed by the wire pressure guide shaft 406 and the upper inner sleeve 403. Under the action of the sealing ring 415, the downward opening of the first cavity is closed; at the same time, driven by the linked force transmission bolt 413, the compression sleeve 412 pushes the upper sealing leather cup 405 and the lower sealing leather cup 409 upward to be compressed, so that they expand and deform, and the upper and lower sealing leather cups are sealed with the inner cylinder wall of the isolation water distributor to close the upper and lower annular flow channels of the external pressure-conducting flow hole 408. Hole 408 is directly opposite to the lower water inlet of the isolation water distributor. The formation pressure of the lower layer is fed back to the lower water inlet through the lower water injection channel of the isolation water distributor, and then passes through the external pressure-conducting flow hole 408, the internal pressure-conducting flow hole 410, the first cavity, and the pressure guide channel 425 in sequence to reach the lower pressure probe 404, thereby obtaining the pressure of the lower formation and transmitting it to the ground for real-time display; the ground controls the wellbore water injection, and executes the three processes of opening water injection, closing water injection, and opening water injection. If the pressure data displayed by the lower pressure probe 404 is a stable straight line, and the pressure data displayed by the in-pipe pressure probe 202 is a curve that fluctuates with high pressure, low pressure, and high pressure following the three processes, and there is a certain pressure difference between the two lines, it can be judged that the isolation device is effective. On the contrary, if the pressure data displayed by the lower pressure probe 404 and the pressure data displayed by the in-pipe pressure probe 202 change with the same trend and there is no obvious pressure difference, it can be judged that the isolation device is invalid.

[0047] During the test and adjustment, after the seal is qualified, the ground sends a test and adjustment command, the compression drive motor 420 runs in the reverse direction to drive the fixed sleeve 419 to move in the reverse direction, and the line-passing push rod 414 moves downward under the rebound action of the return spring 429. After the conductive protrusion 424 of the line-passing push rod 414 contacts the upper end of the force transmission sealing sleeve 411, it pushes the force transmission sealing sleeve 411 to move downward, and the sealing ring 415 gradually opens at the lower end of the first cavity, and the downward flow channel of the annular space between the line-passing pressure guide shaft 406 and the upper inner sleeve 403 is gradually opened; at the same time, driven by the linked force transmission bolt 413, the compression sleeve 412 moves downward to push the upper sealing leather cup 405 and the lower sealing leather cup 409 to release the compression, so that the expansion deformation is reduced; when the compression drive motor 420 stops working, the downward opening of the first cavity is completely opened, and the upper sealing leather cup 405 and the lower sealing leather cup 409 are 9 is in a semi-compression state, and the upper and lower annular flow channels of the external pressure-conducting flow hole 408 are still closed. At this time, the external pressure-conducting flow hole 408 is opposite to the lower water inlet of the isolation water distributor. The lower layer injected water enters the third chamber through the lower collecting inlet 511, and then enters the second chamber from the lower collecting flow hole 512, and then enters from the second chamber through the cavity of the middle sleeve 416 to the pin hole 426 and enters the first chamber through the cavity of the force transmission sealing sleeve 411, and then enters from the first chamber through the internal pressure-conducting flow hole 410 and the external pressure-conducting flow hole 408 into the lower water inlet, realizing the lower layer water injection. At this time, the lower collecting metering section 510 directly measures the flow Q2 of the lower formation and displays it on the ground in real time; the external magnetic flowmeter probe 201 on the full flow metering mechanism 2 records the total flow Q of the upper and lower layers, and the upper layer flow Q1=Q-Q2 is directly obtained. When Q1 and Q2 do not match the injection amount, the ground sends a water nozzle adjustment command, and the adjustment arm drive motor 302 on the water nozzle adjustment mechanism 3 drives the adjustment mechanical arm 301 to rotate and adjust the opening of the upper and lower water nozzles until the adjustment is qualified.

[0048] When the instrument is lifted out, after the seal inspection, measurement and adjustment are completed, the ground issues a decompression command, the compression drive motor 420 works to drive the fixed sleeve 419 to completely reset, so that the return spring 429 drives the line push rod 414 to reset, the compression sleeve 412 to reset, the upper sealing leather cup 405 and the lower sealing leather cup 409 to decompress until the compression is completely released and then stop working, and the ground cable winch lifts out the instrument.

[0049] The sealing inspection and testing and adjustment operations are not in order, and the sealing inspection can be performed first and then the testing and adjustment, or the testing and adjustment can be performed first and then the sealing inspection. The sealing water distributor, control means and possible procedures are all existing technologies and will not be described in detail here. Specific implementation method 2:

[0051] For three-level injection wells, when a dual-flow measurement, adjustment and sealing integrated instrument is docked with the isolation water distributor, a sealing inspection operation is performed to check the upper sealing leather cup 405 and the lower sealing leather cup 409 of the sealing section 4 to seal the second layer, and the sealing conditions of all the isolation devices can be checked. The full-well flow Q and the second-layer flow Q2 can be displayed respectively by executing the measurement and adjustment instructions; the ground issues a decompression instruction, lifts the instrument up to separate from the isolation water distributor, retracts the mechanical arm, lowers it to 10m above the single water distributor, opens the arm, and lowers it again. A dual-flow measurement, adjustment and sealing integrated instrument is docked with the single water distributor, and the third-layer flow Q3 can be directly displayed when the measurement and adjustment is performed. Then Q1=Q-Q2-Q3 is obtained, and the flow of the three layers can be adjusted to a qualified level by adjusting the mechanical arm 31 to dock with the isolation water distributor and the single water distributor. Specific implementation method three:

[0053] For the four-stage injection well, when a dual-flow measurement, adjustment and sealing integrated instrument is connected to the upper isolation water distributor, a sealing inspection operation is performed to check whether the upper sealing leather cup 405 and the lower sealing leather cup 409 of the sealing section 4 are sealed at the second layer, and the sealing conditions of the first and second stage packers can be verified. When the measurement and adjustment are performed, the full well flow Q and the second layer flow Q2 can be displayed respectively. When a dual-flow measurement, adjustment and sealing integrated instrument is connected to the lower isolation water distributor, a sealing inspection operation is performed to check whether the upper and lower sealing leather cups of the sealing section 4 are sealed at the fourth layer, and the sealing conditions of the third stage packer can be verified. When the measurement and adjustment are performed, the total flow of the third and fourth layers Q34 and the fourth layer flow Q4 can be directly displayed. Then Q3=Q34-Q4 is obtained, and Q1=Q-Q2-Q34 is obtained. By adjusting the mechanical arm 301 to connect with the isolation water distributor and the single water distributor, the flow of the three layers can be adjusted to a qualified level.

[0054] The embodiments of the present invention disclosed above are only used to help illustrate the present invention. The embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. According to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well.

Claims

1. A dual flow measurement, adjustment, inspection and sealing integrated instrument, Features: The invention comprises a cable joint (1), a full flow metering mechanism (2), a water nozzle adjusting mechanism (3), a sealing section testing mechanism (4) and a lower layer water injection mechanism (5), wherein the cable joint (1) is located above the lower layer water injection mechanism (5), and the metering mechanism (2), the water nozzle adjusting mechanism (3) and the sealing section testing mechanism (4) are arranged in sequence from top to bottom between the cable joint (1) and the lower layer water injection mechanism (5); the cable joint (1) is used for powering the integrated instrument; the full flow metering mechanism (2) is used for cooperating with the sealing section testing mechanism (4) to judge the state of the packer during the sealing testing stage and to measure the liquid flow of the upper and lower formations during the testing and adjustment stage; and the lower layer water injection mechanism (5) is used for measuring the water flow of the lower layer and cooperating with the sealing section testing mechanism (4) to realize water injection of the lower formation; The testing seal section mechanism (4) comprises an upper outer sleeve (401), a multi-core socket (402), an upper inner sleeve (403), a lower pressure probe (404), a double sealing leather cup assembly, an active sealing assembly, a wire-passing pressure-guiding shaft (406), an internal pressure-guiding flow hole (410), a middle sleeve (416), a lower outer sleeve (423), a pressure flow channel (425), a latch hole (426) and a sleeve assembly, wherein the upper outer sleeve (401) is located above the lower outer sleeve (423) and the two are connected via the middle sleeve (416), the upper inner sleeve (403) is threadedly connected to the inner upper part of the upper outer sleeve (401), and the upper inner sleeve ( The multi-core socket (402) is fixedly connected to the upper inner part of the upper inner sleeve (403) for electrically connecting to the water nozzle adjustment mechanism (3) and supplying power to the testing sealing section mechanism (4). The wire-passing pressure-conducting shaft (406) is fixedly connected to the lower end of the multi-core socket (402) and accommodated in the upper inner sleeve (403). The inner wall of the upper inner sleeve (403) and the outer wall of the wire-passing pressure-conducting shaft (406) are combined to form a first cavity. The wire-passing pressure-conducting shaft (406) is provided with a pressure guide channel (425). The lower pressure probe (404) is arranged on the pressure guide channel (425). 25), the inlet end of the pressure flow channel (425) and the two inner pressure flow holes (410) are both connected to the first cavity, the double sealing leather cup assembly is slidably arranged between the upper outer sleeve (401) and the middle sleeve (416) and is slidably connected to the upper inner sleeve (403), the double sealing leather cup assembly is used to form a seal with the inner wall of the isolation water distributor during testing and guide the lower formation pressure at the lower water inlet of the isolation water distributor to the lower pressure probe (404) through the inner pressure flow hole (410), the first cavity and the pressure flow channel (425) in sequence, and the upper part of the active sealing assembly is connected to the double sealing leather cup assembly. The bowl assembly is connected and slidably connected to the upper inner sleeve (403), the active sealing assembly is slidably connected to the middle sleeve (416) and the lower part is connected to the sleeve assembly, the sleeve assembly is connected to the lower end surface of the middle sleeve (416), a second cavity is formed between the sleeve assembly and the lower outer sleeve (423), the second cavity is connected to the latch hole (426) through the middle sleeve (416), the active sealing assembly is used to drive the double sealing leather cup assembly to move and change the closed state of the first cavity, the two latch holes (426) are symmetrically arranged on the left and right sides of the upper inner sleeve (403), and the active sealing assembly is slidably connected to the latch hole (426); The double sealing leather cup assembly comprises an upper sealing leather cup (405), an intermediate sleeve (407), an external pressure-conducting flow hole (408), a lower sealing leather cup (409) and a compression sleeve (412); the upper sealing leather cup (405), the intermediate sleeve (407), the lower sealing leather cup (409) and the compression sleeve (412) are sequentially connected from top to bottom; the upper end of the upper sealing leather cup (405) is fixedly connected to the upper outer sleeve (401); the two external pressure-conducting flow holes (408) are symmetrically arranged on the left and right sides of the intermediate sleeve (407) and are always connected to the internal pressure-conducting flow holes (410) at corresponding positions; the upper sealing leather cup (405), the intermediate sleeve (407), the lower sealing leather cup (409) and the compression sleeve (412) are all slidably connected to the upper inner sleeve (403); the lower inner wall of the compression sleeve (412) is slidably connected to the upper outer wall of the intermediate sleeve (416); The active sealing assembly comprises a force transmission sealing sleeve (411), a linked force transmission bolt (413), a wire-passing push rod (414), a fixed sleeve (419), a compression drive motor (420), a conductive protrusion (424), a circular plug hole (427), a lower step (428) and a return spring (429). The upper end of the wire-passing push rod (414) is slidably connected to an opening on the lower end surface of the wire-passing pressure guide shaft (406). The lower end of the wire-passing push rod (414) contacts the upper end surface of the fixed sleeve (419). The output end of the compression drive motor (420) is used to drive the fixed sleeve (419) to rotate and the two can slide relative to each other. The circular plug holes (427) are symmetrically provided on the left and right sides of the lower part of the compression sleeve (412). The linked force transmission bolts (427) are symmetrically provided on the left and right sides of the force transmission sealing sleeve (411). 13), the two linked force transmission bolts (413) are correspondingly engaged in the circular jacks (427) at the corresponding positions, a return spring (429) is provided in the force transmission sealing sleeve (411), and the two ends of the return spring (429) are respectively connected to the lower end surface of the wire-passing pressure-guiding shaft (406) and the bottom wall of the force transmission sealing sleeve (411), and a cavity is provided on the force transmission sealing sleeve (411), and when the return spring (429) is in a relaxed state, the inlet end of the cavity is connected to the latch hole (426), and the outlet end is connected to the first cavity, and the wire-passing push rod (414) is sequentially provided with a conduction protrusion (424) and a lower step (428) for pushing the force transmission sealing sleeve (411) to move, from top to bottom, and the bottom wall of the force transmission sealing sleeve (411) is arranged between the conduction protrusion (424) and the lower step (428); The coupling sleeve assembly comprises an inner coupling sleeve (417), an outer coupling sleeve (418), a lower plug sleeve (421) and a single-core socket (422); the upper end surface of the inner coupling sleeve (417) is connected to the lower end surface of the middle coupling sleeve (416); the lower end of the inner coupling sleeve (417) is connected to the outer coupling sleeve (418) and the lower plug sleeve (421) in sequence; the single-core socket (422) is arranged on the lower side of the lower plug sleeve (421); the fixed sleeve (419) is threadedly connected to the inner wall of the outer coupling sleeve (418); the compression drive motor (420) is arranged in the lower plug sleeve (421); and the single-core socket (422) is electrically connected to the multi-core socket (402); The lower water injection mechanism (5) comprises a single-core lower plug (501), a lower connecting shaft (502), a lower connecting sleeve (503), a collecting inlet sleeve (504), a middle sleeve (505), an electronic compartment sleeve (506), a circuit compartment (508), a lower wire reel (509), a lower collecting metering section (510), a lower collecting inlet (511), a lower collecting flow hole (512) and a sealing assembly (513). The single-core lower plug (501) is electrically connected to the single-core socket (422). The lower end of the single-core lower plug (501) is connected to the lower connecting shaft (502). The upper part of the lower connecting shaft (502) is threadedly connected to the inner wall of the lower end of the lower sleeve (423). The lower side of the lower connecting shaft (502) is provided with an electronic compartment sleeve (506). The lower connecting sleeve (503), the collecting inlet sleeve (504), the middle sleeve (505), the electronic compartment sleeve (506), the circuit compartment (508), the lower wire reel (509), the lower collecting metering section (510), the lower collecting inlet (511), the lower collecting flow hole (512) and the sealing assembly (513). The mouth sleeve (504) and the middle sleeve (505) are provided, the circuit compartment (508) is arranged in the electronic compartment sleeve (506), the lower connecting shaft (502) is eccentrically provided with a lower collecting flow hole (512), the upper end of the lower collecting flow hole (512) is communicated with the second cavity, the upper end of the lower wire shaft (509) is threadedly connected to the lower end of the lower connecting shaft (502), the lower end of the lower wire shaft (509) is connected to the sealing assembly (513), and the sealing The two ends of the sealing assembly (513) are respectively connected to the collecting inlet sleeve (504) and the middle outer sleeve (505); the lower collecting metering section (510) is arranged at the upper part of the inner cavity of the collecting inlet sleeve (504); the collecting inlet sleeve (504) is provided with a lower collecting inlet (511); the lower collecting inlet (511) and the lower end of the lower collecting flow hole (512) are communicated through a third cavity enclosed between the collecting inlet sleeve (504) and the lower wire shaft (509).

2. A dual flow rate measuring, adjusting and sealing integrated instrument according to claim 1, Features: The full flow metering mechanism (2) comprises an external magnetic flow meter probe (201) and an in-pipe pressure probe (202); the external magnetic flow meter probe (201) and the in-pipe pressure probe (202) are both arranged on the outer wall of the full flow metering mechanism (2); and the cable connector (1) is electrically connected to the full flow metering mechanism (2).

3. A dual flow rate measuring, adjusting and sealing integrated instrument according to claim 1, Features: The water nozzle regulating mechanism (3) comprises a regulating mechanical arm (301) and a regulating arm driving motor (302) for driving the regulating mechanical arm (301); the water nozzle regulating mechanism (3) is electrically connected to the full flow metering mechanism (2).

4. A dual flow rate measuring, adjusting and sealing integrated instrument according to claim 1, Features: The outer wall of the lower end of the wire-passing pressure-guiding shaft (406) and the outer wall of the upper end of the force-transmitting sealing sleeve (411) are both provided with a sealing ring (415).

5. The dual flow rate measuring, adjusting and sealing integrated instrument according to claim 1, Features: The integrated instrument further comprises a guide claw assembly (507), wherein the guide claw assembly (507) is arranged at the lower part of the electronic compartment housing (506).

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