CN111364945A - Natural gas exploitation well hole reinforcing construction method - Google Patents
Natural gas exploitation well hole reinforcing construction method Download PDFInfo
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- CN111364945A CN111364945A CN202010182393.8A CN202010182393A CN111364945A CN 111364945 A CN111364945 A CN 111364945A CN 202010182393 A CN202010182393 A CN 202010182393A CN 111364945 A CN111364945 A CN 111364945A
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 239000003345 natural gas Substances 0.000 title claims abstract description 47
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 27
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 239000004568 cement Substances 0.000 claims abstract description 72
- 230000001681 protective effect Effects 0.000 claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 2
- 238000000429 assembly Methods 0.000 claims 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 17
- 230000003111 delayed effect Effects 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 3
- 239000002343 natural gas well Substances 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 description 3
- 244000309464 bull Species 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Classifications
-
- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/138—Plastering the borehole wall; Injecting into the formation
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The invention relates to a natural gas exploitation well hole reinforcing construction method, which uses natural gas exploitation well hole reinforcing construction equipment, wherein the natural gas exploitation well hole reinforcing construction equipment comprises a mounting frame, a protective device and a vibration device, the protective device is arranged on the outer wall of the mounting frame, the vibration device is arranged in the mounting frame, and the protective device is connected with the vibration device through a first spring telescopic rod. The method can solve the problems that the existing natural gas well is reinforced by using the cement pipeline which is manufactured in advance through a pipeline mould, the natural gas exploitation place is special, the transportation of the cement pipeline is difficult, and natural gas leakage is caused due to the fact that the soil adhesion degree of the cement pipeline and the inner wall of the well is not enough due to geological reasons; therefore, a device for reinforcing the gas production well hole on the gas production site is needed, but after the cement is reinforced, the protective device on the outer side of the cement is difficult to disassemble, so that the subsequent work is delayed.
Description
Technical Field
The invention relates to the technical field of natural gas exploitation, in particular to a construction method for reinforcing a natural gas exploitation well hole.
Background
During natural gas exploitation, the drilled well hole needs to be reinforced to bear the risk brought by the later natural gas exploitation so as to ensure the safety of natural gas exploitation equipment and exploitation personnel, and the pressure of a shaft gas column on the well bottom is small because the density of natural gas is small and is 0.75-0.8 kg/cubic meter; the natural gas has low viscosity, and the flow resistance in the stratum and the pipeline is low; and because of the large expansion coefficient, the elastic energy is also large. Therefore, natural gas extraction generally adopts a self-spraying mode. This is basically the same as self-injection oil recovery. However, because the pressure of the gas well is generally high and natural gas belongs to flammable and explosive gas, the pressure bearing capacity and the sealing performance of the gas production wellhead device are much higher than those of the oil production wellhead device, and therefore a primary reinforcement needs to be performed on the gas production wellhead.
At present, most of natural gas wellholes are provided with cement pipelines which are manufactured in advance through pipeline molds, the pipelines need to be manufactured in places special for producing the cement pipelines and then are conveyed to a natural gas exploitation site, the natural gas exploitation places are often special, difficulty is added to the transportation of the cement pipelines, and the manufactured cement pipelines are arranged in the gas exploitation wellholes in some areas due to geological reasons, so that the cement pipelines and the inner walls of the wellholes have insufficient soil adhesion degree, and natural gas leakage is caused to cause energy waste; therefore, a device capable of reinforcing the gas production well hole on the gas production site is needed, but although the device can realize better reinforcement of the gas production well hole, after the gas production well hole is reinforced by cement, a protective device on the outer side of the cement is difficult to disassemble, so that the subsequent work is delayed.
Disclosure of Invention
The invention aims to provide a natural gas exploitation well hole reinforcing construction method to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the natural gas exploitation well hole reinforcing construction method uses natural gas exploitation well hole reinforcing construction equipment which comprises a mounting rack, a protection device and a vibration device, and the specific method when the natural gas exploitation well hole reinforcing construction equipment is used for reinforcing natural gas exploitation well hole drilling holes is as follows:
step one, preparation operation: cleaning and trimming the periphery of the drilled well hole and the part needing to be reinforced in the well hole;
step two, placing a protection device: placing the mounting frame into the cleaned and trimmed well hole in the step one, sequentially mounting the protective side plates on the mounting frame, starting the first air cylinder, opening the protective bottom plate, and fixing the upper enclosing plate at the top end of the mounting frame; at the moment, an annular cavity is formed among the protective side plates, the protective bottom plate, the upper coaming and the inner wall of the well hole;
step three, cement pouring: pouring cement into the protective device formed in the second step, and vibrating the cement poured into the protective device by using a cement vibrating device; after cement is poured into the protective device, the cement vibration device is required to vibrate the cement, so that gaps in the annular cavity can be filled with the cement, cement molecules are closer to each other, and the strength of the cement pipe is enhanced;
step four, cement curing post-treatment: after the cement poured in the third step is solidified, starting the vibration device to perform vibration operation on the mounting frame and the solidified cement;
step five, equipment removal: after the protection plate is separated from the cement in the fourth step, starting the first air cylinder to withdraw the protection bottom plate, dismantling the protection side plate and the upper enclosing plate together, and finally moving the natural gas exploitation well hole reinforcing construction equipment out of the well hole;
the protective device is arranged on the outer wall of the mounting frame, the vibration device is arranged in the mounting frame, and the protective device is connected with the vibration device through a first spring telescopic rod; wherein:
the protective device comprises a protective side plate, a protective bottom plate assembly and an upper enclosing plate, wherein a plurality of T-shaped channels are uniformly formed in the outer side wall of the mounting frame, T-shaped long blocks are arranged in the T-shaped channels, the protective side plate is arranged on each T-shaped long block, the protective bottom plate assembly is arranged at the bottom end of the mounting frame, a plurality of rectangular blocks with through holes are uniformly arranged at the top end of the mounting frame, round rods are inserted into the through holes, the upper enclosing plate is arranged at one end of each round rod, the protective side plate is located on the inner side of the upper;
the vibration device comprises a support frame, a transmission mechanism, a second connecting rod mechanism, a telescopic mechanism and a vibration block, the support frame is arranged in the middle of the mounting frame, the transmission mechanism is arranged on the upper surface of the support frame, the second connecting rod mechanism is arranged on the lower portion of the mounting frame, the lower surface of the support frame is connected with the second connecting rod mechanism through the telescopic mechanism, and the vibration block is uniformly arranged on the inner wall of the lower end of the mounting frame.
As a further scheme of the invention: the protection bottom plate assembly comprises a supporting circular plate, a first air cylinder and a first connecting rod mechanism, wherein the first air cylinder is mounted in the middle of the upper surface of the supporting circular plate, and the top end of the first air cylinder is connected with the first connecting rod mechanism;
as a further scheme of the invention: a link mechanism includes connecting block, one-level connecting rod, second grade connecting rod, bull stick and protection bottom plate, and the connecting block edge evenly is provided with a plurality of one-level connecting rod through the round pin axle, and connecting block upper surface edge is provided with spacing ring, and spacing ring is located the rear end of one-level connecting rod, and the one-level connecting rod front end left and right sides is provided with two second grade connecting rods through the round pin axle symmetry, and protection bottom plate is installed to second grade connecting rod front end, and the waist type way has been seted up at the second grade connecting rod middle part, passes the bull stick in.
As a further scheme of the invention: drive mechanism includes driving motor, the lead screw, the guide bar, special-shaped silk piece, No. two cylinders, remove wheel and propelling movement piece, be provided with the rectangular plate on the support frame, install driving motor on the rectangular plate, the rectangular plate below is provided with the lead screw, the lead screw bilateral symmetry is provided with the guide bar, the output shaft at driving motor both ends passes through gear drive with the lead screw both ends and is connected, install special-shaped silk piece on lead screw and the guide bar, the surface is protruding type under the special-shaped silk piece, the round hole has been seted up on the support frame bottom plate, sliding mounting No. two cylinders in the round hole, be connected with the answer spring between support frame bottom plate and No. two cylinder upper ends, No. two cylinder upper ends are installed and are removed the.
As a further scheme of the invention: no. two link mechanism includes backup pad, one-level montant, second grade down tube, propelling movement post and hits and beat the piece, and the backup pad lower surface evenly is provided with the one-level montant, and the one-level montant passes through the round pin hub connection with the second grade down tube, and there is the propelling movement post second grade down tube rear end through hinged mounting, and the piece is hit to second grade down tube front end installation, hits and beats the piece upper surface and be connected with the circle piece through compression spring.
As a further scheme of the invention: telescopic machanism includes guide way, tooth post down, goes up tooth post and No. two spring telescopic links, and a plurality of mounting hole has evenly been seted up to the backup pad upper surface, installs the guide way on the mounting hole, and tooth post is installed down to the below in the guide way, and tooth post is installed to the top in the guide way, and lower tooth post is connected with last incomplete meshing of tooth post, goes up the tooth post surface and is provided with the direction muscle, goes up to be connected through No. two spring telescopic links between tooth post bottom and the support frame lower surface.
Compared with the prior art, the invention has the following advantages:
the method can solve the problems that at present, cement pipelines which are manufactured in advance through pipeline molds are mostly installed, the pipelines need to be manufactured in places special for producing the cement pipelines and then are conveyed to a natural gas exploitation site, the natural gas exploitation places are often special, difficulty is added to the transportation of the cement pipelines, the manufactured cement pipelines are installed in gas exploitation wellholes in some areas due to geological reasons, the soil adhesion degree of the cement pipelines and the inner walls of the wellholes is insufficient, and the natural gas is leaked to cause energy waste; therefore, a device capable of reinforcing the gas production well hole on the gas production site is needed, but although the device can realize better reinforcement of the gas production well hole, after the gas production well hole is reinforced by cement, a protective device on the outer side of the cement is difficult to disassemble, so that the subsequent work is delayed.
When the equipment is used for reinforcing a natural gas well hole, the equipment only needs to be transported to a natural gas exploitation site, then the periphery of the drilled well hole and a place needing to be reinforced in the well hole are cleaned and repaired, the mounting frame is placed into the well hole cleaned and repaired in the first step, the protection side plates are sequentially mounted on the mounting frame, the first air cylinder is started, the protection bottom plate is opened, and then the upper enclosing plate is fixed at the top end of the mounting frame; at the moment, an annular cavity is formed among the protective side plates, the protective bottom plate, the upper coaming and the inner wall of the well hole; pouring cement into the protective device formed in the second step, and vibrating the cement poured into the protective device by using a cement vibrating device; cement pours into protector after, need use cement vibrator to vibrate cement, make cement can fill up the gap of annular cavity, make between the cement molecule more nearly, with the intensity of strengthening the cement pipe, treat the cement solidification back that pours, start vibrator and to vibrate the operation to mounting bracket and solidification back cement, at drive mechanism, under No. two link mechanism and telescopic machanism's cooperation work, realize beating the crisscross of weight of guard plate, make cement and guard plate separation, greatly improved, efficiency is disassembled to the guard plate.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow chart of the operation of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic top plan view of the present invention;
FIG. 4 is a schematic view of the front cross-sectional plan structure of the present invention;
FIG. 5 is a perspective view of the protective floor assembly of the present invention;
FIG. 6 is a schematic perspective view of a vibration device according to the present invention;
FIG. 7 is a perspective view of the telescoping mechanism of the present invention;
FIG. 8 is a schematic cross-sectional plan view of the telescoping mechanism of the present invention;
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained with reference to fig. 1 to 8.
The utility model provides a natural gas exploitation well hole consolidates construction methods, it has used a natural gas exploitation well hole and has consolidated construction equipment, and this natural gas exploitation well hole consolidates construction equipment includes mounting bracket 1, protector 2 and vibrator 3, its characterized in that: the specific method for reinforcing the natural gas exploitation well hole drilling by adopting the natural gas exploitation well hole reinforcing construction equipment is as follows:
step one, preparation operation: cleaning and trimming the periphery of the drilled well hole and the part needing to be reinforced in the well hole;
step two, placing a protection device: placing the mounting frame 1 into the cleaned and trimmed well hole in the step one, sequentially mounting the protective side plates 21 on the mounting frame 1, starting the first air cylinder 222, opening the protective bottom plate 2235, and fixing the upper enclosing plate 23 on the top end of the mounting frame 1; at this time, an annular cavity is formed among the protective side plate 21, the protective bottom plate 2235, the upper coaming 23 and the inner wall of the well hole;
step three, cement pouring: pouring cement into the protective device 2 formed in the step two, and vibrating the cement poured into the protective device 2 by using a cement vibrating device; after cement is poured into the protective device 2, the cement vibration device needs to be used for vibrating the cement, so that gaps in the annular cavity can be filled with the cement, cement molecules are closer to each other, and the strength of the cement pipe is enhanced;
step four, cement curing post-treatment: after the cement poured in the third step is solidified, starting the vibration device 3 to perform vibration operation on the mounting frame 1 and the solidified cement;
step five, equipment removal: after the protection plate is separated from the cement in the fourth step, the first air cylinder 222 is started to withdraw the protection bottom plate 2235, the protection side plate 21 and the upper coaming 23 are removed together, and finally the natural gas exploitation well hole reinforcing construction equipment is moved out of the well hole;
the outer wall of the mounting rack 1 is provided with a protective device 2, a vibration device 3 is arranged in the mounting rack 1, and the protective device 2 is connected with the vibration device 3 through a first spring telescopic rod 11; wherein:
the protection device 2 comprises a protection side plate 21, a protection bottom plate assembly 22 and an upper enclosing plate 23, a plurality of T-shaped channels 12 are uniformly formed in the outer side wall of the mounting frame 1, T-shaped long blocks 13 are arranged in the T-shaped channels 12, the protection side plate 21 is arranged on each T-shaped long block 13, the protection bottom plate assembly 22 is arranged at the bottom end of the mounting frame 1, a plurality of rectangular blocks 14 with through holes are uniformly arranged at the top end of the mounting frame 1, round rods 15 are inserted into the through holes, the upper enclosing plate 23 is arranged at one end of each round rod 15, the protection side plate 21 is located on the inner side of the upper enclosing plate 23; during specific work, the protection side plate 21 is installed on the T-shaped long block 13, the T-shaped long block 13 is inserted into the T-shaped channel 12, the protection bottom plate assembly 22 is opened, the round rod 15 is inserted into the through hole of the rectangular block 14 and locked by the locking bolt 16, the upper enclosing plate 23 is installed, at the moment, an annular cavity is formed among the protection side plate 21, the protection bottom plate 2235, the upper enclosing plate 23 and the inner wall of the well hole, and then cement is poured in.
The protection bottom plate assembly 22 comprises a supporting circular plate 221, a first air cylinder 222 and a first connecting rod mechanism 223, wherein the first air cylinder 222 is mounted in the middle of the upper surface of the supporting circular plate 221, and the top end of the first air cylinder 222 is connected with the first connecting rod mechanism 223; specifically, during operation, the first air cylinder 222 on the supporting circular plate 221 is activated to open or close the protection base plate 2235 through the first link mechanism 223.
The first link mechanism 223 comprises a connecting block 2231, a first-stage connecting rod 2232, a second-stage connecting rod 2233, a rotating rod 2234 and a protective bottom plate 2235, wherein a plurality of first-stage connecting rods 2232 are uniformly arranged at the edge of the connecting block 2231 through a pin, a limiting ring 2236 is arranged at the edge of the upper surface of the connecting block 2231, the limiting ring 2236 is positioned at the rear end of the first-stage connecting rod 2232, two second-stage connecting rods 2233 are symmetrically arranged at the left and right sides of the front end of the first-stage connecting rod 2232 through pins, the protective bottom plate 2235 is arranged at the front end of the second-stage connecting rod 2233, a waist-shaped channel 2237 is arranged in the; during specific work, under the driving of the first air cylinder 222, the connecting block 2231 moves to drive the first-stage connecting rod 2232 to move, and then the second-stage connecting rod 2233 moves on the rotating rod 2234, so that the protective bottom plate 2235 is opened or closed.
The vibration device 3 comprises a support frame 31, a transmission mechanism 32, a second connecting rod mechanism 33, a telescopic mechanism 34 and vibration blocks 35, the support frame 31 is installed in the middle of the mounting frame 1, the transmission mechanism 32 is installed on the upper surface of the support frame 31, the second connecting rod mechanism 33 is installed on the lower portion of the mounting frame 1, the lower surface of the support frame 31 is connected with the second connecting rod mechanism 33 through the telescopic mechanism 34, and the inner wall of the lower end of the mounting frame 1 is uniformly provided with the vibration blocks 35; during specific work, the transmission mechanism 32 on the support frame 31 is started to drive the second connecting rod mechanism 33 to move, so that the telescopic mechanism 34 is pushed to move, and the vibration block 35 is struck.
The transmission mechanism 32 comprises a transmission motor 321, a screw rod 322, a guide rod 323, a special-shaped wire block 324, a second air cylinder 325, a moving wheel 326 and a pushing block 327, a rectangular plate 311 is arranged on the support frame 31, the transmission motor 321 is installed on the rectangular plate 311, the screw rod 322 is arranged below the rectangular plate 311, the guide rods 323 are symmetrically arranged on two sides of the screw rod 322, output shafts at two ends of the transmission motor 321 are connected with two ends of the screw rod 322 in a gear transmission mode, the special-shaped wire block 324 is installed on the screw rod 322 and the guide rod 323, the lower surface of the special-shaped wire block 324 is convex, a circular hole is formed in the bottom plate of the support frame 31, the second air cylinder 325 is installed in the circular hole in a sliding mode, a return spring is connected between the bottom plate of the support frame 31 and the upper end of the second; during specific work, the transmission motor 321 is started, the screw rod 322 is driven to rotate through gear transmission, the special-shaped wire block 324 moves back and forth on the guide rod 323, then the moving wheel 326 and the second cylinder 325 realize up-and-down reciprocating motion under the action of the special-shaped wire block 324 and the return spring, and the pushing block 327 is driven to push the pushing column 334.
The second connecting rod mechanism 33 comprises a supporting plate 331, a first-stage vertical rod 332, a second-stage inclined rod 333, a pushing column 334 and a striking block 335, the first-stage vertical rod 332 is uniformly arranged on the lower surface of the supporting plate 331, the first-stage vertical rod 332 is connected with the second-stage inclined rod 333 through a pin shaft, the pushing column 334 is mounted at the rear end of the second-stage inclined rod 333 through a hinge, the striking block 335 is mounted at the front end of the second-stage inclined rod 333, and the upper surface of the striking block 335 is connected with a round block 3351 through a; during specific work, the pushing block 327 pushes the pushing column 334 to move, then the striking block 335 is driven by the primary vertical rod 332 and the secondary inclined rod 333 to move upwards to be in contact with the telescopic mechanism 34, the striking vibration block 35 moves downwards to realize vibration separation of the protection plate and the solidified cement.
The telescopic mechanism 34 comprises a guide groove 341, a lower tooth column 342, an upper tooth column 343 and a second spring telescopic rod 344, a plurality of mounting holes are uniformly formed in the upper surface of the support plate 331, the guide groove 341 is mounted on the mounting holes, the lower tooth column 342 is mounted below the inside of the guide groove 341, the upper tooth column 343 is mounted above the inside of the guide groove 341, the lower tooth column 342 is incompletely meshed with the upper tooth column 343, a guide rib 3431 is arranged on the surface of the upper tooth column 343, and the bottom end of the upper tooth column 343 is connected with the lower surface of the support frame 31 through the second spring telescopic rod 344; when the concrete work is carried out, the striking block 335 moves upwards to push the lower tooth column 342, the inner part of the striking block can rotate to form the upper tooth column 343, the lower tooth column 342 and the upper tooth column 343 are not completely meshed, only the tooth tip is meshed with one part, the guide ribs 3431 behind the two meshed teeth slide in the same guide groove 341, when the upper tooth column 343 pushes the lower tooth column 342 to slide out of the guide groove 341, due to the action of the second spring telescopic rod 344, the teeth of the upper tooth column 343 can slide along the inclined surfaces of the teeth of the lower tooth column 342 which are meshed with each other, so that under the action of the inclined surfaces, the upper tooth column 343 can rotate by an angle and slide to the other side, the striking block 335 can be rebounded back, the strength is staggered, the light and heavy striking protection plates and the solidified cement are struck, the protection plates and the cement are quickly separated, and damage to the cement cannot be caused.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a natural gas exploitation well hole consolidates construction methods, its has used a natural gas exploitation well hole and has consolidated construction equipment, and this natural gas exploitation well hole consolidates construction equipment includes mounting bracket (1), protector (2) and vibrator (3), its characterized in that: the concrete method for reinforcing the natural gas exploitation well hole by adopting the natural gas exploitation well hole reinforcing construction equipment is as follows:
step one, preparation operation: cleaning and trimming the periphery of the drilled well hole and the part needing to be reinforced in the well hole;
step two, placing a protection device: placing the mounting frame (1) into the cleaned and trimmed well hole in the step one, sequentially mounting the protective side plates (21) on the mounting frame (1), starting the first air cylinder (222), opening the protective bottom plate (2235), and fixing the upper enclosing plate (23) at the top end of the mounting frame (1);
step three, cement pouring: pouring cement into the protective device arranged in the step two, and vibrating the cement poured into the protective device by using a cement vibrating device (3);
step four, cement curing post-treatment: after the cement poured in the third step is solidified, starting the vibration device (3) to perform vibration operation on the mounting frame (1) and the solidified cement;
step five, equipment removal: after the protection plate is separated from the cement in the fourth step, starting the first air cylinder (222) to withdraw the protection bottom plate (2235), dismantling the protection side plate (21) and the upper coaming (23) together, and finally moving the natural gas exploitation well hole reinforcing construction equipment out of the well hole;
the outer wall of the mounting rack (1) is provided with a protective device (2), the interior of the mounting rack (1) is provided with a vibration device (3), and the protective device (2) is connected with the vibration device (3) through a first spring telescopic rod (11); wherein:
the protective device (2) comprises protective side plates (21), protective bottom plate assemblies (22) and upper enclosing plates (23), a plurality of T-shaped channels (12) are uniformly formed in the outer side wall of the mounting frame (1), T-shaped long blocks (13) are arranged in the T-shaped channels (12), the protective side plates (21) are mounted on the T-shaped long blocks (13), the protective bottom plate assemblies (22) are mounted at the bottom end of the mounting frame (1), a plurality of rectangular blocks (14) with through holes are uniformly arranged at the top end of the mounting frame (1), round rods (15) are inserted into the through holes, the upper enclosing plates (23) are mounted at one ends of the round rods (15), the protective side plates (21) are located on the inner sides of the upper enclosing plates (23), and locking bolts (16);
vibrator (3) include support frame (31), drive mechanism (32), No. two link mechanism (33), telescopic machanism (34) and vibrations piece (35), mid-mounting has support frame (31) in mounting bracket (1), surface mounting has drive mechanism (32) on support frame (31), No. two link mechanism (33) are installed to the lower part in mounting bracket (1), be connected through telescopic machanism (34) between support frame (31) lower surface and No. two link mechanism (33), a plurality of vibrations piece (35) are evenly installed to mounting bracket (1) lower extreme inner wall.
2. The natural gas production well hole reinforcing construction method according to claim 1, characterized in that: the protection bottom plate assembly (22) comprises a supporting circular plate (221), a cylinder (222) and a connecting rod mechanism (223), the cylinder (222) is installed in the middle of the upper surface of the supporting circular plate (221), and the top end of the cylinder (222) is connected with the connecting rod mechanism (223).
3. The natural gas production well hole reinforcing construction method according to claim 1, characterized in that: the first connecting rod mechanism (223) comprises a connecting block (2231), a first-stage connecting rod (2232), a second-stage connecting rod (2233), a rotating rod (2234) and a protective bottom plate (2235), a plurality of first-stage connecting rods (2232) are uniformly arranged on the edge of the connecting block (2231) through pin shafts, a limiting circular ring (2236) is arranged on the edge of the upper surface of the connecting block (2231), the limiting circular ring (2236) is located at the rear end of the first-stage connecting rod (2232), two second-stage connecting rods (2233) are symmetrically arranged on the left side and the right side of the front end of the first-stage connecting rod (2232) through pin shafts, the protective bottom plate (2235) is installed at the front end of the second-stage connecting rod (2233), a waist-shaped channel (2237) is formed.
4. The natural gas production well hole reinforcing construction method according to claim 1, characterized in that: the transmission mechanism (32) comprises a transmission motor (321), a screw rod (322), a guide rod (323), a special-shaped wire block (324), a second cylinder (325), a moving wheel (326) and a pushing block (327), a rectangular plate (311) is arranged on the support frame (31), the transmission motor (321) is installed on the rectangular plate (311), the screw rod (322) is arranged below the rectangular plate (311), the guide rods (323) are symmetrically arranged on two sides of the screw rod (322), output shafts at two ends of the transmission motor (321) are connected with two ends of the screw rod (322) in a gear transmission mode, the special-shaped wire block (324) is installed on the screw rod (322) and the guide rod (323), the lower surface of the special-shaped wire block (324) is convex, a round hole is formed in the bottom plate of the support frame (31), the second cylinder (325) is installed in the round hole in a sliding mode, and a return spring is connected, the upper end of the second air cylinder (325) is provided with a movable wheel (326), and the lower end of the second air cylinder (325) is provided with a pushing block (327).
5. The natural gas production well hole reinforcing construction method according to claim 1, characterized in that: no. two link mechanism (33) are including backup pad (331), one-level montant (332), second grade down tube (333), propelling movement post (334) with hit and beat piece (335), backup pad (331) lower surface evenly is provided with one-level montant (332), one-level montant (332) are through the round pin hub connection with second grade down tube (333), there is propelling movement post (334) second grade down tube (333) rear end through the hinge mount, second grade down tube (333) front end is installed and is hit piece (335), it has circle piece (3351) to hit piece (335) upper surface through compression spring coupling.
6. The natural gas production well hole reinforcing construction method according to claim 1, characterized in that: telescopic machanism (34) are including guide way (341), down tooth post (342), go up tooth post (343) and No. two spring telescopic links (344), a plurality of mounting hole has evenly been seted up to backup pad (331) upper surface, install guide way (341) on the mounting hole, tooth post (342) are down installed to the below in guide way (341), tooth post (343) are installed to the top in guide way (341), tooth post (342) are connected with last tooth post (343) incomplete meshing down, it is provided with direction muscle (3431) to go up tooth post (343) surface, it is connected through No. two spring telescopic links (344) to go up between tooth post (343) bottom and support frame (31) lower surface.
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Cited By (1)
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| CN111364945B (en) | 2021-04-02 |
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