CN112431581A - Horizontal well hydraulic jet staged fracturing system and method - Google Patents
Horizontal well hydraulic jet staged fracturing system and method Download PDFInfo
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- CN112431581A CN112431581A CN202011365496.4A CN202011365496A CN112431581A CN 112431581 A CN112431581 A CN 112431581A CN 202011365496 A CN202011365496 A CN 202011365496A CN 112431581 A CN112431581 A CN 112431581A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 87
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000011435 rock Substances 0.000 claims abstract description 5
- 238000005507 spraying Methods 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 239000007921 spray Substances 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
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Abstract
The invention relates to the field of jet staged fracturing, in particular to a horizontal well hydraulic jet staged fracturing system and a method, wherein the preparation method comprises the following steps: 1. placing the device in a pipeline, connecting a connecting water pipe with the outside, and enabling the moving wheel to tightly push the inner wall of the pipeline and the guide wheel to tightly push the inner wall of the pipeline; 2. starting a power motor to drive the moving wheel mechanism to rotate in the pipeline inner arm to generate forward thrust, so that the device can move forward along the pipeline; 3. after moving to suitable position, move through II locking baffle of locking motor, until the tight guide spring in locking baffle top, and then make the tight pipeline inner wall in three guide pulley top, it is fixed with the device front end, move to side ring gear department through I transmission locking picture peg of locking motor, it is tight with side ring gear top, then it is fixed with moving wheel mechanism, thereby make the device rear end at the pipeline internal fixation, the back effort when avoiding the device to spray makes the device rock, influences the jet fracturing effect.
Description
Technical Field
The invention relates to the field of jet staged fracturing, in particular to a horizontal well hydraulic jet staged fracturing system and method.
Background
The mechanism of hydraulic jet staged fracturing is a production increasing measure integrating perforation, fracturing and isolation, a special jet tool generates high-speed fluid to penetrate through a casing and rock to form an eyelet, the fluid pressure at the bottom of the eyelet is increased, the fracturing is initiated by super-fracture pressure, a single crack is generated early, and the hydraulic jet staged fracturing method is particularly suitable for staged and layered operation and wireless mechanical packing. Accurate crack formation, effective isolation and one-trip multi-section fracturing of the tubular column. The existing hydraulic jet staged fracturing device is inconvenient to move in a casing pipeline, and the operation efficiency is influenced.
Disclosure of Invention
The invention aims to provide a horizontal well hydraulic jet staged fracturing system and method, which are convenient to move in a casing pipeline and improve the operation efficiency.
The purpose of the invention is realized by the following technical scheme:
a horizontal well hydraulic jet staged fracturing system comprises a jet device, a rotating frame, a moving wheel mechanism, a front connecting frame, a front guide wheel mechanism, a telescopic control mechanism, a moving wheel locking mechanism, a guide wheel locking mechanism and a power motor, wherein the rotating frame is rotationally connected at the rear end of the jet device, the four moving wheel mechanisms are uniformly and circumferentially connected on the rotating frame in a sliding manner, the front connecting frame is fixedly connected at the front end of the jet device, the front guide wheel mechanism is connected at the front end of the front connecting frame, the telescopic control mechanism is rotationally connected on the rotating frame and rotationally connected with the four moving wheel mechanisms, the moving wheel locking mechanism is connected at the rear end of the jet device and is slidably connected with the telescopic control mechanism, the guide wheel locking mechanism is connected on the front connecting frame, and the guide wheel locking mechanism tightly props against the front guide wheel mechanism, and the power motor is fixedly connected to the rear end of the injection device and is in transmission connection with the rotating frame.
Injection apparatus including spouting the body, connecting seat, mounting panel I, connecting water pipe and mounting panel II, the rear end fixedly connected with connecting seat of the body sprays, connects water pipe fixed connection in the rear end of spouting the body, the equal fixed connection of mounting panel I and mounting panel II is on connecting the water pipe, power motor fixed connection is on mounting panel I.
The rotary frame comprises a square sleeve seat, supporting leg grooves, a rotary sleeve and an inner toothed ring, wherein the plurality of supporting leg grooves are uniformly formed in the circumferential direction of the square sleeve seat, the square sleeve seat is fixedly connected to the front end of the rotary sleeve, the inner toothed ring is fixedly connected into the rotary sleeve, the rotary sleeve is rotatably connected into the connecting seat, and a power motor is in transmission connection with the inner toothed ring.
The movable wheel mechanism comprises a plurality of supporting rods, a movable wheel, supporting leg springs and linkage pins, wherein the outer ends of the supporting rods are obliquely and fixedly connected with the movable wheel, the inner ends of the supporting rods are fixedly connected with the supporting leg springs, the linkage pins are fixedly connected to the side ends of the supporting rods, the movable wheel mechanism is provided with a plurality of supporting rods which are respectively connected in a plurality of supporting leg grooves in a sliding mode, and the inner ends of the supporting leg springs are respectively fixedly connected to the inner ends of the supporting leg grooves.
The front connecting frame comprises a front connecting seat, a linkage plate support, a fixed sliding pipe, a limiting ring and a long hole, the front connecting seat is fixedly connected to the front end of the injection body, the front end of the front connecting seat is uniformly and fixedly connected with three linkage plate supports, the fixed sliding pipe is fixedly connected to the center of the front connecting seat, the limiting ring is fixedly connected to the front end of the fixed sliding pipe, and the long hole is axially formed in the fixed sliding pipe.
The front guide wheel mechanism comprises guide wheel rods, guide wheels, linkage rods, linkage sliding frames and guide springs, the number of the guide wheel rods is three, the rear ends of the three guide wheel rods are respectively rotatably connected to three linkage plate supports, the front ends of the three guide wheel rods are respectively rotatably connected with the guide wheels, the linkage sliding frames are slidably connected to the fixed sliding pipes, the linkage sliding frames are rotatably connected with the three linkage rods, the outer ends of the three linkage rods are respectively rotatably connected with the three guide wheel rods, and the guide springs are sleeved on the fixed sliding pipes.
The telescopic control mechanism comprises a control round sleeve, a linkage pin frame, a control linkage plate and a side gear ring, the control round sleeve is rotatably connected onto the rotary sleeve, the outer end of the control round sleeve is uniformly and fixedly connected with a plurality of linkage pin frames, the plurality of linkage pin frames are rotatably connected with the control linkage plate, and the plurality of control linkage plates are rotatably connected with the plurality of linkage pins respectively.
Removal wheel locking mechanical system including locking motor I, locking threaded rod I, locking thread board I and locking picture peg, I fixed connection of locking motor is on mounting panel II, locking threaded rod I rotates to be connected on mounting panel I and mounting panel II, the output shaft of locking motor I and I fixed connection of locking threaded rod, locking thread board I through threaded connection on locking threaded rod I and with be connected water pipe sliding connection, locking picture peg fixed connection is at the lower extreme of locking thread board I, locking picture peg and side ring gear sliding connection.
Leading wheel locking mechanical system including locking motor II, locking threaded rod II, locking thread board II and locking baffle, in II fixed connection of locking motor in the connecting seat in the front, II fixed connection of locking threaded rod are on the output shaft of locking motor II, locking thread board II passes through threaded connection on locking threaded rod II, II sliding connection of locking thread board are in fixed slide pipe and slot hole, locking baffle fixed connection is on locking thread board II, tight interlock balladeur train and locking baffle are pushed up respectively at guide spring's both ends.
The preparation method of the horizontal well hydraulic jet staged fracturing system comprises the following steps:
the method comprises the following steps: the device is placed in a pipeline, the connecting water pipe is connected with the outside, the movable wheel is tightly propped against the inner wall of the pipeline through the elasticity of the supporting leg spring, and the guide wheel is tightly propped against the inner wall of the pipeline through the elasticity of the guide spring, so that the device is supported on the inner wall of the pipeline;
step two: when the device moves into the pipeline, a power motor is started to drive an inner gear ring, a moving wheel mechanism is driven to rotate on an inner arm of the pipeline through a square sleeve seat, and the moving wheel is obliquely and fixedly connected to the outer end of a supporting leg rod, so that the moving wheel generates forward thrust when the inner arm of the pipeline rotates, and the device can move forward along the pipeline;
step three: after moving to suitable position, make II drives the locking baffle of locking thread plate and remove through II transmission locking threaded rods of locking motor, until locking baffle top tight guide spring, and then make the tight pipeline inner wall in three guide pulley top, it is fixed with the device front end, make I drive locking thread plate of locking thread plate drive locking picture peg through I transmission locking threaded rod of locking motor and remove to side ring gear department, it is tight to incline the ring gear top, then it is fixed with moving wheel mechanism, thereby make the device rear end at the pipeline internal fixation, back effort when avoiding the device to spray makes the device rock, the influence sprays the fracturing effect.
The invention has the beneficial effects that: the invention provides a horizontal well hydraulic jet staged fracturing system and method, which are convenient to move in a casing pipeline and improve the operation efficiency.
Drawings
FIG. 1 is a first general structural diagram of the present invention;
FIG. 2 is a second overall structural schematic of the present invention;
FIG. 3 is a schematic view of the spray device of the present invention;
FIG. 4 is a schematic view of the structure of the rotating frame of the present invention;
FIG. 5 is a schematic view of the moving wheel mechanism of the present invention;
FIG. 6 is a schematic view of the front attachment frame of the present invention;
FIG. 7 is a schematic representation of the front steering wheel mechanism of the present invention;
FIG. 8 is a schematic structural view of the telescoping control mechanism of the present invention;
FIG. 9 is a schematic structural view of the moving wheel locking mechanism of the present invention;
fig. 10 is a schematic structural view of a guide wheel locking mechanism of the present invention.
In the figure: an injection device 1; a jet body 1-1; a connecting seat 1-2; mounting plates I1-3; connecting water pipes 1-4; mounting plates II 1-5; a rotating frame 2; 2-1 of a square sleeve seat; a leg groove 2-2; 2-3 of a rotating sleeve; 2-4 parts of an inner gear ring; a moving wheel mechanism 3; a leg bar 3-1; moving wheels 3-2; 3-3 of a supporting leg spring; 3-4 of a linkage pin; a front connecting frame 4; a front connecting seat 4-1; a linkage plate bracket 4-2; 4-3 of a fixed sliding pipe; 4-4 parts of a limiting ring; 4-5 of a long hole; a front guide wheel mechanism 5; 5-1 of a guide wheel rod; 5-2 of a guide wheel; 5-3 of a linkage rod; a linkage carriage 5-4; 5-5 parts of a guide spring; a telescoping control mechanism 6; 6-1 of a control round sleeve; a linkage pin frame 6-2; a control linkage plate 6-3; 6-4 of a side gear ring; a moving wheel locking mechanism 7; locking a motor I7-1; locking the threaded rod I7-2; locking thread plates I7-3; 7-4 of a locking plug board; a guide wheel locking mechanism 8; locking a motor II 8-1; locking the threaded rod II 8-2; locking the thread plate II 8-3; a locking baffle 8-4; and a power motor 9.
Detailed Description
The invention is described in further detail below with reference to figures 1-10.
The first embodiment is as follows:
as shown in fig. 1-10, a horizontal well hydraulic jet staged fracturing system comprises a jet device 1, a rotating frame 2, a moving wheel mechanism 3, a front connecting frame 4, a front guide wheel mechanism 5, a telescopic control mechanism 6, a moving wheel locking mechanism 7, a guide wheel locking mechanism 8 and a power motor 9, wherein the rotating frame 2 is rotatably connected to the rear end of the jet device 1, the number of the moving wheel mechanisms 3 is four, the four moving wheel mechanisms 3 are uniformly and circumferentially slidably connected to the rotating frame 2, the front connecting frame 4 is fixedly connected to the front end of the jet device 1, the front guide wheel mechanism 5 is connected to the front end of the front connecting frame 4, the telescopic control mechanism 6 is rotatably connected to the rotating frame 2 and rotatably connected with the four moving wheel mechanisms 3, the moving wheel locking mechanism 7 is connected to the rear end of the jet device 1 and slidably connected with the telescopic control mechanism 6, the guide wheel locking mechanism 8 is connected to the front connecting frame 4, the guide wheel locking mechanism 8 tightly pushes against the front guide wheel mechanism 5, and the power motor 9 is fixedly connected to the rear end of the injection device 1 and is in transmission connection with the rotating frame 2.
When in use, the device is placed in a pipeline, the spraying device 1 is connected with the outside, and the inner wall of the pipeline is tightly propped through the moving wheel mechanism 3 and the front guide wheel mechanism 5, so that the device is supported on the inner wall of the pipeline; starting a power motor 9 to drive the rotating frame 2 to drive the moving wheel mechanism 3 to rotate in the pipeline, so that the device can move along the pipeline; after the device removes to suitable position, through removing wheel locking mechanical system 7 with flexible control mechanism 6 locking, will remove wheel mechanism 3 fixed then to make the device rear end at the pipeline internal fixation, simultaneously, lock preceding directive wheel mechanism 5 to the tight pipeline inner wall in top through directive wheel locking mechanical system 8, fixed the device front end, and then the back effort when avoiding the device to spray makes the device rock, influences the jet fracturing effect.
The second embodiment is as follows:
as shown in the figures 1-10, the spraying device 1 comprises a spraying body 1-1, a connecting seat 1-2, a mounting plate I1-3, a connecting water pipe 1-4 and a mounting plate II 1-5, wherein the rear end of the spraying body 1-1 is fixedly connected with the connecting seat 1-2, the connecting water pipe 1-4 is fixedly connected to the rear end of the spraying body 1-1, the mounting plate I1-3 and the mounting plate II 1-5 are fixedly connected to the connecting water pipe 1-4, and a power motor 9 is fixedly connected to the mounting plate I1-3.
The jet body 1-1 is used for jet fracturing, and the connecting water pipe 1-4 is used for connecting the jet body 1-1 with the outside.
The third concrete implementation mode:
as shown in fig. 1-10, the rotating frame 2 comprises a square sleeve seat 2-1, leg grooves 2-2, a rotating sleeve 2-3 and an inner gear ring 2-4, wherein the square sleeve seat 2-1 is uniformly provided with a plurality of leg grooves 2-2 in the circumferential direction, the square sleeve seat 2-1 is fixedly connected to the front end of the rotating sleeve 2-3, the inner gear ring 2-4 is fixedly connected into the rotating sleeve 2-3, the rotating sleeve 2-3 is rotatably connected into the connecting seat 1-2, and a power motor 9 is in transmission connection with the inner gear ring 2-4.
The power motor 9 drives the inner gear ring 2-4 to rotate, so that the inner gear ring 2-4 drives the rotating sleeve 2-3 to rotate on the connecting seat 1-2, and then the moving wheel mechanism 3 is driven to rotate in the sleeve pipeline through the inner supporting leg groove 2-2 in the square sleeve seat 2-1.
The fourth concrete implementation mode:
as shown in fig. 1-10, the moving wheel mechanism 3 includes a plurality of leg bars 3-1, moving wheels 3-2, leg springs 3-3, and linking pins 3-4, the outer ends of the leg bars 3-1 are fixedly connected with the moving wheels 3-2 in an inclined manner, the inner ends of the leg bars 3-1 are fixedly connected with the leg springs 3-3, the linking pins 3-4 are fixedly connected to the side ends of the leg bars 3-1, the plurality of leg bars 3-1 are respectively slidably connected in the plurality of leg grooves 2-2, and the inner ends of the plurality of leg springs 3-3 are respectively fixedly connected to the inner ends of the plurality of leg grooves 2-2.
When the square sleeve seat 2-1 drives the supporting leg rod 3-1 to rotate through the supporting leg groove 2-2, the moving wheel 3-2 is always contacted with the inner wall of the pipeline through the elasticity of the supporting leg spring 3-3, and when the moving wheel 3-2 rotates along with the supporting leg rod 3-1, the axial friction force of the pipeline can be generated with the inner wall of the pipeline through the inclined arrangement of the moving wheel 3-2, so that the axial thrust of the device in the pipeline is formed, the device moves in the pipeline, the moving efficiency is improved, and the operation efficiency is further improved.
The fifth concrete implementation mode:
as shown in fig. 1-10, the front connection frame 4 includes a front connection seat 4-1, a linkage plate support 4-2, a fixed slide tube 4-3, a limit ring 4-4 and a long hole 4-5, the front connection seat 4-1 is fixedly connected to the front end of the ejection body 1-1, the front end of the front connection seat 4-1 is uniformly and fixedly connected with three linkage plate supports 4-2, the fixed slide tube 4-3 is fixedly connected to the center of the front connection seat 4-1, the limit ring 4-4 is fixedly connected to the front end of the fixed slide tube 4-3, and the fixed slide tube 4-3 is axially provided with the long hole 4-5.
The sixth specific implementation mode:
as shown in fig. 1-10, the front guide wheel mechanism 5 includes three guide wheel rods 5-1, three guide wheels 5-2, three linkage rods 5-3, three linkage carriages 5-4 and three guide springs 5-5, the three guide wheel rods 5-1 are rotatably connected to the three linkage plate brackets 4-2 at the rear ends of the three guide wheel rods 5-1, the guide wheels 5-2 are rotatably connected to the front ends of the three guide wheel rods 5-1, the linkage carriages 5-4 are slidably connected to the fixed slide tube 4-3, the linkage carriages 5-4 are rotatably connected to the three linkage rods 5-3, the outer ends of the three linkage rods 5-3 are rotatably connected to the three guide wheel rods 5-1, and the guide springs 5-5 are sleeved on the fixed slide tube 4-3.
The linkage sliding frame 5-4 is elastically pushed tightly by the elastic force of the guide spring 5-5, so that the linkage sliding frame 5-4 pushes the guide wheel rod 5-1 through the linkage rod 5-3, and the guide wheel 5-2 on the guide wheel rod 5-1 is pushed tightly against the inner wall of the pipeline to form a support of the guide wheel 5-2 on the front end of the device, thereby facilitating the movement of the device in the pipeline.
The seventh embodiment:
as shown in fig. 1-10, the telescoping control mechanism 6 comprises a control circular sleeve 6-1, a linkage pin frame 6-2, a control linkage plate 6-3 and a side toothed ring 6-4, the control circular sleeve 6-1 is rotatably connected to the rotary sleeve 2-3, the outer end of the control circular sleeve 6-1 is uniformly and fixedly connected with a plurality of linkage pin frames 6-2, the plurality of linkage pin frames 6-2 are rotatably connected with the control linkage plate 6-3, and the plurality of control linkage plates 6-3 are respectively rotatably connected with the plurality of linkage pins 3-4.
The control round sleeve 6-1 is rotated, the control linkage plate 6-3 is driven by the linkage pin frame 6-2, the control linkage plate 6-3 drives the supporting leg rod 3-1 to slide in the supporting leg groove 2-2 through the linkage pin 3-4, the moving wheel mechanism 3 is retracted when the device is placed in a pipeline, the control round sleeve 6-1 is loosened after the device is placed in the pipeline, and the moving wheel 3-2 is tightly pressed against the inner wall of the pipeline through the elasticity of the supporting leg spring 3-3.
The specific implementation mode is eight:
as shown in fig. 1-10, the moving wheel locking mechanism 7 comprises a locking motor I7-1, a locking threaded rod I7-2, the locking device comprises a locking threaded plate I7-3 and a locking insertion plate 7-4, a locking motor I7-1 is fixedly connected to a mounting plate II 1-5, a locking threaded rod I7-2 is rotatably connected to the mounting plate I1-3 and the mounting plate II 1-5, an output shaft of the locking motor I7-1 is fixedly connected with the locking threaded rod I7-2, the locking threaded plate I7-3 is connected to the locking threaded rod I7-2 through threads and is in sliding connection with a connecting water pipe 1-4, the locking insertion plate 7-4 is fixedly connected to the lower end of the locking threaded plate I7-3, and the locking insertion plate 7-4 is in sliding connection with a side tooth ring 6-4.
The locking threaded rod I7-2 is driven by the locking motor I7-1 to enable the locking threaded plate I7-3 to move and drive the locking inserting plate 7-4 to move to the side toothed ring 6-4, the side toothed ring 6-4 is tightly pressed, the supporting leg rod 3-1 cannot slide in the supporting leg groove 2-2 and is fixed, and therefore the rear end of the device is fixed in the pipeline.
The specific implementation method nine:
as shown in the figures 1-10, the guide wheel locking mechanism 8 comprises a locking motor II 8-1, a locking threaded rod II 8-2, a locking threaded plate II 8-3 and a locking baffle plate 8-4, the locking motor II 8-1 is fixedly connected in the front connecting seat 4-1, the locking threaded rod II 8-2 is fixedly connected to an output shaft of the locking motor II 8-1, the locking threaded plate II 8-3 is connected to the locking threaded rod II 8-2 through threads, the locking threaded plate II 8-3 is slidably connected in the fixed sliding tube 4-3 and the long hole 4-5, the locking baffle plate 8-4 is fixedly connected to the locking threaded plate II 8-3, and two ends of the guide spring 5-5 respectively support against the linkage sliding frame 5-4 and the locking baffle plate 8-4.
The locking threaded rod II 8-2 is driven by the locking motor II 8-1 to enable the locking threaded plate II 8-3 to move and drive the locking baffle 8-4 to move until the locking baffle 8-4 tightly pushes the guide spring 5-5, so that the guide spring 5-5 is pressed to be shortest, the inner wall of the pipeline is tightly pushed by the three guide wheels 5-2 to be fixed, the front end of the device is fixed, and the situation that the device is rocked by the back acting force when the device is sprayed to influence the spraying fracturing effect is avoided.
The detailed implementation mode is ten:
as shown in fig. 1 to 10, the method for preparing the horizontal well hydraulic jet staged fracturing system comprises the following steps:
the method comprises the following steps: the device is placed in a pipeline, the connecting water pipe 1-4 is connected with the outside, the movable wheel 3-2 is tightly propped against the inner wall of the pipeline through the elastic force of the supporting leg spring 3-3, and the guide wheel 5-2 is tightly propped against the inner wall of the pipeline through the elastic force of the guide spring 5-5, so that the device is supported on the inner wall of the pipeline;
step two: when the device is moved into the pipeline, the power motor 9 is started to drive the inner toothed ring 2-4, the moving wheel mechanism 3 is driven to rotate on the inner arm of the pipeline through the square sleeve seat 2-1, and the moving wheel 3-2 is fixedly connected to the outer end of the leg support rod 3-1 in an inclined manner, so that the moving wheel 3-2 generates forward thrust when the inner arm of the pipeline rotates, and the device can move forward along the pipeline;
step three: after the device is moved to a proper position, the locking motor II 8-1 is used for driving the locking threaded rod II 8-2 to enable the locking threaded plate II 8-3 to drive the locking baffle 8-4 to move until the locking baffle 8-4 tightly pushes the guide spring 5-5, further the three guide wheels 5-2 tightly push the inner wall of the pipeline, the front end of the device is fixed, the locking motor I7-1 is used for driving the locking threaded plate I7-3 to drive the locking insertion plate 7-4 to move to the side toothed ring 6-4, the side toothed ring 6-4 is tightly pushed, and then the moving wheel mechanism 3 is fixed, so that the rear end of the device is fixed in the pipeline, and the phenomenon that the device shakes due to the back acting force during spraying of the device to influence the spraying fracturing effect is avoided.
The invention relates to a horizontal well hydraulic jet staged fracturing system and a method, which have the use principle that: the device is placed in a pipeline, the connecting water pipe 1-4 is connected with the outside, the movable wheel 3-2 is tightly propped against the inner wall of the pipeline through the elastic force of the supporting leg spring 3-3, and the guide wheel 5-2 is tightly propped against the inner wall of the pipeline through the elastic force of the guide spring 5-5, so that the device is supported on the inner wall of the pipeline; when the device is moved into the pipeline, the power motor 9 is started to drive the inner toothed ring 2-4, the moving wheel mechanism 3 is driven to rotate on the inner arm of the pipeline through the square sleeve seat 2-1, and the moving wheel 3-2 is fixedly connected to the outer end of the leg support rod 3-1 in an inclined manner, so that the moving wheel 3-2 generates forward thrust when the inner arm of the pipeline rotates, and the device can move forward along the pipeline; after the device is moved to a proper position, the locking motor II 8-1 is used for driving the locking threaded rod II 8-2 to enable the locking threaded plate II 8-3 to drive the locking baffle 8-4 to move until the locking baffle 8-4 tightly pushes the guide spring 5-5, further the three guide wheels 5-2 tightly push the inner wall of the pipeline, the front end of the device is fixed, the locking motor I7-1 is used for driving the locking threaded plate I7-3 to drive the locking insertion plate 7-4 to move to the side toothed ring 6-4, the side toothed ring 6-4 is tightly pushed, and then the moving wheel mechanism 3 is fixed, so that the rear end of the device is fixed in the pipeline, and the phenomenon that the device shakes due to the back acting force during spraying of the device to influence the spraying fracturing effect is avoided.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.
Claims (10)
1. The utility model provides a horizontal well hydraulic jet staged fracturing system, includes injection apparatus (1), swivel mount (2), removes wheel mechanism (3), preceding link (4), preceding directive wheel mechanism (5), flexible control mechanism (6), removes wheel locking mechanical system (7), directive wheel locking mechanical system (8) and motor power (9), its characterized in that: the rotating frame (2) is rotationally connected with the rear end of the injection device (1), four moving wheel mechanisms (3) are arranged, the four moving wheel mechanisms (3) are evenly and circumferentially connected on the rotating frame (2) in a sliding manner, the front connecting frame (4) is fixedly connected with the front end of the injection device (1), the front guide wheel mechanism (5) is connected with the front end of the front connecting frame (4), the telescopic control mechanism (6) is rotationally connected on the rotating frame (2) and rotationally connected with the four moving wheel mechanisms (3), the moving wheel locking mechanism (7) is connected with the rear end of the injection device (1) and is connected with the telescopic control mechanism (6) in a sliding way, the guide wheel locking mechanism (8) is connected on the front connecting frame (4), the guide wheel locking mechanism (8) tightly pushes the front guide wheel mechanism (5), and the power motor (9) is fixedly connected to the rear end of the injection device (1) and is in transmission connection with the rotating frame (2).
2. The horizontal well hydraulic jet staged fracturing system of claim 1, wherein: the spraying device (1) comprises a spraying body (1-1), a connecting seat (1-2), a mounting plate I (1-3), a connecting water pipe (1-4) and a mounting plate II (1-5), wherein the rear end of the spraying body (1-1) is fixedly connected with the connecting seat (1-2), the connecting water pipe (1-4) is fixedly connected to the rear end of the spraying body (1-1), the mounting plate I (1-3) and the mounting plate II (1-5) are fixedly connected to the connecting water pipe (1-4), and a power motor (9) is fixedly connected to the mounting plate I (1-3).
3. The horizontal well hydraulic jet staged fracturing system of claim 2, wherein: the rotary frame (2) comprises a square sleeve seat (2-1), supporting leg grooves (2-2), a rotary sleeve (2-3) and an inner gear ring (2-4), the square sleeve seat (2-1) is evenly provided with the supporting leg grooves (2-2) in the circumferential direction, the square sleeve seat (2-1) is fixedly connected to the front end of the rotary sleeve (2-3), the inner gear ring (2-4) is fixedly connected into the rotary sleeve (2-3), the rotary sleeve (2-3) is rotatably connected into the connecting seat (1-2), and a power motor (9) is in transmission connection with the inner gear ring (2-4).
4. The horizontal well hydraulic jet staged fracturing system of claim 3, wherein: the movable wheel mechanism (3) comprises a supporting leg rod (3-1), a movable wheel (3-2), supporting leg springs (3-3) and linkage pins (3-4), the outer end of the supporting leg rod (3-1) is obliquely and fixedly connected with the movable wheel (3-2), the inner end of the supporting leg rod (3-1) is fixedly connected with the supporting leg springs (3-3), the linkage pins (3-4) are fixedly connected to the side end of the supporting leg rod (3-1), the movable wheel mechanism (3) is provided with a plurality of supporting leg rods (3-1) are respectively connected in the supporting leg grooves (2-2) in a sliding mode, and the inner ends of the supporting leg springs (3-3) are respectively and fixedly connected to the inner ends of the supporting leg grooves (2-2).
5. The horizontal well hydraulic jet staged fracturing system of claim 4, wherein: the front connecting frame (4) comprises a front connecting seat (4-1), a linkage plate support (4-2), a fixed sliding pipe (4-3), a limiting ring (4-4) and a long hole (4-5), the front connecting seat (4-1) is fixedly connected to the front end of the injection body (1-1), the front end of the front connecting seat (4-1) is uniformly and fixedly connected with the three linkage plate supports (4-2), the fixed sliding pipe (4-3) is fixedly connected to the center of the front connecting seat (4-1), the limiting ring (4-4) is fixedly connected to the front end of the fixed sliding pipe (4-3), and the fixed sliding pipe (4-3) is axially provided with the long hole (4-5).
6. The horizontal well hydraulic jet staged fracturing system of claim 5, wherein: the front guide wheel mechanism (5) comprises a guide wheel rod (5-1), a guide wheel (5-2), a linkage rod (5-3), a linkage sliding frame (5-4) and a guide spring (5-5), the guide wheel rods (5-1) are three, the rear ends of the three guide wheel rods (5-1) are respectively connected to the three linkage plate supports (4-2) in a rotating mode, the front ends of the three guide wheel rods (5-1) are respectively connected with the guide wheels (5-2) in a rotating mode, the linkage sliding frame (5-4) is connected to the fixed sliding pipe (4-3) in a sliding mode, the linkage sliding frame (5-4) is connected with the three linkage rods (5-3) in a rotating mode, the outer ends of the three linkage rods (5-3) are respectively connected with the three guide wheel rods (5-1) in a rotating mode, and the guide springs (5-5) are sleeved on the fixed sliding pipe (4-3).
7. The horizontal well hydraulic jet staged fracturing system of claim 6, wherein: the telescopic control mechanism (6) comprises a control round sleeve (6-1), linkage pin racks (6-2), control linkage plates (6-3) and side gear rings (6-4), wherein the control round sleeve (6-1) is rotatably connected to the rotary sleeve (2-3), the outer end of the control round sleeve (6-1) is uniformly and fixedly connected with the linkage pin racks (6-2), the linkage pin racks (6-2) are rotatably connected with the control linkage plates (6-3), and the control linkage plates (6-3) are rotatably connected with the linkage pins (3-4) respectively.
8. The horizontal well hydraulic jet staged fracturing system of claim 7, wherein: the movable wheel locking mechanism (7) comprises a locking motor I (7-1), a locking threaded rod I (7-2), a locking threaded plate I (7-3) and a locking inserting plate (7-4), the locking motor I (7-1) is fixedly connected to a mounting plate II (1-5), the locking threaded rod I (7-2) is rotatably connected to the mounting plate I (1-3) and the mounting plate II (1-5), an output shaft of the locking motor I (7-1) is fixedly connected with the locking threaded rod I (7-2), the locking threaded plate I (7-3) is connected to the locking threaded rod I (7-2) through threads and is in sliding connection with a connecting water pipe (1-4), and the locking inserting plate (7-4) is fixedly connected to the lower end of the locking threaded plate I (7-3), the locking flashboard (7-4) is connected with the side gear ring (6-4) in a sliding way.
9. The horizontal well hydraulic jet staged fracturing system of claim 8, wherein: the guide wheel locking mechanism (8) comprises a locking motor II (8-1), a locking threaded rod II (8-2), a locking threaded plate II (8-3) and a locking baffle plate (8-4), the locking motor II (8-1) is fixedly connected in the front connecting seat (4-1), the locking threaded rod II (8-2) is fixedly connected on an output shaft of the locking motor II (8-1), the locking threaded plate II (8-3) is connected on the locking threaded rod II (8-2) through threads, the locking threaded plate II (8-3) is connected in the fixed sliding pipe (4-3) and the long hole (4-5) in a sliding mode, the locking baffle plate (8-4) is fixedly connected on the locking threaded plate II (8-3), and two ends of the guide spring (5-5) respectively push the linkage sliding frame (5-4) and the locking baffle plate (8-4) tightly.
10. The method for preparing by using the horizontal well hydraulic jet staged fracturing system of claim 9, wherein the method comprises the following steps: the method comprises the following steps:
the method comprises the following steps: the device is placed in a pipeline, a connecting water pipe (1-4) is connected with the outside, the movable wheel (3-2) is tightly propped against the inner wall of the pipeline through the elastic force of a supporting leg spring (3-3), and the guide wheel (5-2) is tightly propped against the inner wall of the pipeline through the elastic force of a guide spring (5-5), so that the device is supported on the inner wall of the pipeline;
step two: when the device is moved into the pipeline, a power motor (9) is started to drive an inner gear ring (2-4), a moving wheel mechanism (3) is driven to rotate in the inner arm of the pipeline through a square sleeve seat (2-1), and the moving wheel (3-2) is obliquely and fixedly connected to the outer end of a supporting leg rod (3-1) so that the moving wheel (3-2) generates forward thrust when the inner arm of the pipeline rotates, and the device can move forward along the pipeline;
step three: after the locking mechanism moves to a proper position, the locking motor II (8-1) drives the locking threaded rod II (8-2) to enable the locking threaded plate II (8-3) to drive the locking baffle (8-4) to move until the locking baffle (8-4) tightly pushes the guide spring (5-5), then the three guide wheels (5-2) are tightly pressed against the inner wall of the pipeline, the front end of the device is fixed, the locking threaded rod I (7-2) is driven by the locking motor I (7-1) to drive the locking threaded plate I (7-3) to drive the locking inserting plate (7-4) to move to the side toothed ring (6-4), the side toothed ring (6-4) is tightly pressed, and then the moving wheel mechanism (3) is fixed, thereby make the device rear end at the pipeline internal fixation, the back effort of avoiding the device when spraying makes the device rock, influences the injection fracturing effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011365496.4A CN112431581A (en) | 2020-11-28 | 2020-11-28 | Horizontal well hydraulic jet staged fracturing system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011365496.4A CN112431581A (en) | 2020-11-28 | 2020-11-28 | Horizontal well hydraulic jet staged fracturing system and method |
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| CN112431581A true CN112431581A (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011365496.4A Withdrawn CN112431581A (en) | 2020-11-28 | 2020-11-28 | Horizontal well hydraulic jet staged fracturing system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320249A (en) * | 2021-12-28 | 2022-04-12 | 中国科学院广州能源研究所 | Nitrogen and carbon dioxide mixed gas jet device in horizontal well and mining method |
-
2020
- 2020-11-28 CN CN202011365496.4A patent/CN112431581A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320249A (en) * | 2021-12-28 | 2022-04-12 | 中国科学院广州能源研究所 | Nitrogen and carbon dioxide mixed gas jet device in horizontal well and mining method |
| CN114320249B (en) * | 2021-12-28 | 2023-11-07 | 中国科学院广州能源研究所 | Nitrogen and carbon dioxide mixed gas jet device in horizontal well and exploitation method |
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