CN213087970U - Drilling liquid distribution device and in-situ repair system - Google Patents
Drilling liquid distribution device and in-situ repair system Download PDFInfo
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- CN213087970U CN213087970U CN202021274328.XU CN202021274328U CN213087970U CN 213087970 U CN213087970 U CN 213087970U CN 202021274328 U CN202021274328 U CN 202021274328U CN 213087970 U CN213087970 U CN 213087970U
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Abstract
The utility model relates to a creep into liquid distribution device and normal position repair system, should creep into the liquid distribution device and include and creep into the liquid distribution drill bit, the top that creeps into the liquid distribution drill bit is connected with the bottom of coiled tubing, it has seted up a plurality of first jet orifices to creep into the bottom of liquid distribution drill bit, it has seted up a plurality of second jet orifices to creep into the upper portion of liquid distribution drill bit, it can be fixed, the gliding disk seat to creep into the inside of liquid distribution drill bit to be provided with, it is in the state of creeping into to creep into the liquid distribution drill bit, the disk seat is fixed in the inside of creeping into the liquid distribution drill bit, and the disk seat blocks each second; and the drilling liquid distribution drill bit is in a radial liquid distribution state, a valve ball is thrown into the drilling liquid distribution drill bit, the valve ball is seated on the top of the valve seat and blocks the interior of the drilling liquid distribution drill bit, and the valve seat slides down to a position separated from each second jet hole. The utility model provides a normal position prosthetic devices can't satisfy the demand that a time of brill accomplished axial cloth liquid and radial cloth liquid promptly, technical problem that the operation process is loaded down with trivial details, the operating efficiency is low.
Description
Technical Field
The utility model relates to an environment restoration technical field, it is further, relate to one kind and creep into liquid distribution device and normal position repair system, especially relate to a normal position is restoreed and is crept into liquid distribution device and normal position repair system based on coiled tubing.
Background
The in-situ remediation technology is one of the main process technologies adopted by China to remediate resources such as underground soil, underground water and the like of refuse dumps and working condition enterprises in recent years. At present, the method generally adopts the steps of injecting medicaments into an injection well and distributing the medicaments in the injection well, and the method needs to firstly drill one injection well, then utilizes equipment for injecting the medicaments to inject the medicaments to the preset depth in the injection well, or adopts a hollow drill rod of a drilling machine (such as a crawler-type drilling machine) to firstly carry out drilling operation, then injects the medicaments into the drill hole through the hollow drill rod, or adopts continuous pipe equipment with a jet drill bit to drill the hole, and distributes the medicaments along the axial direction while drilling along the axial direction of the continuous pipe, and finally sprays the medicaments axially at the preset depth. However, the above methods have respective disadvantages and shortcomings:
the first method has the advantages that an injection well is required to be drilled firstly, then the medicament is injected, the operation is complicated, the working efficiency is low, and the required cost is high;
in the second method, when the hollow rod is used for drilling, the hollow rod is normally limited by equipment, and only drilling operation can be performed on a shallow stratum, so that the application range is wide;
in the third method, the continuous pipe is put into one time, so that drilling and axial liquid distribution can be finished, radial liquid distribution cannot be performed, and the repair range is limited.
In summary, the above three methods all have a common disadvantage: the device can only carry out axial liquid distribution and cannot carry out radial large-range liquid distribution repair, if axial and radial large-range liquid distribution is to be realized, the three operation methods cannot meet the requirement of rapid operation, the coiled tubing needs to be laid down more, and the operation process is complicated.
Aiming at the problems that in the related art, the in-situ repair device cannot meet the requirement that axial liquid distribution and radial liquid distribution can be completed by one drill, the operation process is complicated, and the operation efficiency is low, an effective solution is not provided at present.
Therefore, the inventor provides a drilling liquid distribution device and an in-situ repair system by virtue of experience and practice of related industries for many years, so as to overcome the defects in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a creep into cloth liquid device and normal position repair system, be provided with the first jet orifice that carries out axial cloth liquid and the second jet orifice that carries out radial cloth liquid on drilling cloth liquid drill head, after accomplishing drilling and axial cloth liquid, can carry out the shutoff to first jet orifice and open the second jet orifice and carry out radial cloth liquid operation, thereby only need a brill can accomplish axial cloth liquid and radial cloth liquid, increase the cloth liquid area around the pit shaft, make the repair area bigger, in addition, the accessible lifts the coiled tubing after the operation is accomplished to a degree of depth, can continue to carry out radial cloth liquid at another degree of depth, can obtain bigger transformation volume.
The purpose of the utility model can be realized by adopting the following technical scheme:
the utility model provides a creep into cloth liquid device, it sets up in the bottom of coiled tubing to bore into to the underground preset degree of depth, it includes the cloth liquid drill bit of drilling to creep into cloth liquid device, wherein:
the drilling liquid distribution drill bit is of a cylindrical structure with an opening at the top and a sealed bottom, the top of the drilling liquid distribution drill bit is connected with the bottom of the continuous pipe, the bottom of the drilling liquid distribution drill bit is provided with a plurality of first jet holes for axial liquid distribution, the upper part of the drilling liquid distribution drill bit is provided with a plurality of second jet holes for radial liquid distribution, each first jet hole and each second jet hole are communicated with the inside of the drilling liquid distribution drill bit, the inside of the drilling liquid distribution drill bit is provided with a valve seat which can be fixed and can slide, and the valve seat is of a cylindrical structure with an opening at the top and an opening at the bottom, which is arranged along the vertical direction;
the drilling liquid distribution drill bit is in a drilling state, the valve seat is fixed inside the drilling liquid distribution drill bit, and the valve seat seals the second jet holes; the drilling liquid distribution drill bit is in a radial liquid distribution state, a valve ball is thrown into the drilling liquid distribution drill bit, the valve ball is seated on the top of the valve seat and seals the inside of the drilling liquid distribution drill bit, and the valve seat slides down to a position separated from each second jet hole.
The utility model discloses an in a preferred embodiment, creep into the cloth liquid device and still include the releasing hand, the releasing hand set up in creep into the cloth liquid drill bit with between the coiled tubing.
The utility model discloses an in a preferred embodiment, it still includes the connector to creep into the liquid distribution device, the connector set up in the giving up with between the coiled tubing, the bottom of giving up with the top of the liquid distribution drill bit that creeps into is connected, the top of giving up with the bottom of connector is connected, the top of connector with the bottom of coiled tubing is connected.
The utility model discloses an in a preferred embodiment, it includes drill bit upper segment and drill bit hypomere to bore cloth liquid drill bit, the drill bit upper segment is along open-top, the open-bottom tubular structure that vertical direction set up, the drill bit hypomere is the tubular structure that open-top, bottom that set up along vertical direction seal, the top of drill bit upper segment with the bottom of coiled tubing is connected, the bottom of drill bit upper segment with the top of drill bit hypomere is connected, each the second jet orifice is all seted up in the middle part of drill bit upper segment, each first jet orifice is all seted up in the bottom of drill bit hypomere.
In a preferred embodiment of the present invention, each of the first injection holes is uniformly distributed at the bottom of the lower segment of the drill bit, and each of the first injection holes is formed along the axial direction of the lower segment of the drill bit and/or along an included angle direction with the axial direction of the lower segment of the drill bit, and the included angle is smaller than 90 °.
In a preferred embodiment of the present invention, each of the second injection holes is arranged along a circumferential direction of the upper drill portion, and each of the second injection holes is arranged along a radial direction of the upper drill portion.
In a preferred embodiment of the present invention, the lower outer wall of the upper drill bit section is connected to the upper inner wall of the lower drill bit section by a screw thread, and a first seal ring is disposed between the lower outer wall of the upper drill bit section and the upper inner wall of the lower drill bit section.
The utility model discloses an in a preferred embodiment, the disk seat is located the inside of drill bit upper segment, it is in the state of creeping into to creep into the liquid distribution drill bit, the outer wall of disk seat with be connected with the shearing pin between the inner wall of drill bit upper segment.
The utility model discloses an among the preferred embodiment, the echelonment that the inner wall of disk seat reduced for from top to bottom diameter, so form on the inner wall of disk seat right the disk seat gliding carries out spacing step, spacing step is located each the below of second jet orifice, and spacing step and each distance between the second jet orifice is greater than the length of disk seat, it is in radial cloth liquid state to creep into the cloth liquid drill bit, the valve ball gliding extremely the bottom of valve ball with the position of spacing step looks butt.
The present invention provides a better embodiment, wherein the outer wall of the valve seat is attached to the inner wall of the upper drill bit section, and a second sealing ring is arranged between the outer wall of the valve seat and the inner wall of the upper drill bit section.
The utility model discloses an in a preferred embodiment, follow on the top inner wall of disk seat the circumference of disk seat seted up with valve ball matched with annular seal groove, it is in radial cloth liquid state to creep into the cloth liquid drill bit, the valve ball seat seal in the seal groove, just the bottom outer wall of valve ball with the inner wall of seal groove closely laminates.
The utility model provides an in-situ repair system, in-situ repair system includes coiled tubing, water pump 4 and foretell cloth liquid device that creeps into, the one end of coiled tubing with the water pump is connected, the other end of coiled tubing with it connects to creep into the cloth liquid device.
In a preferred embodiment of the present invention, the in-situ repair system further comprises a roller and a driving device for adjusting the length of the coiled tubing during the lowering operation, wherein the roller is driven by the driving device, the coiled tubing is wound on the roller, and the driving device is connected with the rotating shaft of the roller through a transmission structure.
In a preferred embodiment of the present invention, the in-situ repair system further comprises an injection head, the injection head is disposed at the top of the drill hole, and the coiled tubing passes through the injection head to stretch into the drill hole.
From the above, the utility model discloses a creep into liquid distribution device and normal position repair system's characteristics and advantage are: the utility model discloses a drilling liquid distribution drill bit, including drilling liquid distribution drill bit, valve seat, drilling liquid distribution drill bit, first jet orifice, second jet orifice, and the bottom of drilling liquid distribution drill bit and upper portion have seted up a plurality of first jet orifices and a plurality of second jet orifice respectively, can carry out axial liquid distribution to the medicament that injects in the drilling hole through each first jet orifice, can carry out radial liquid distribution to the medicament that injects in the drilling hole through each second jet orifice, the utility model discloses there are two kinds of modes of operation, when being in the drilling mode, the valve seat is fixed in the inside of drilling liquid distribution drill bit, and the valve seat blocks up each second jet orifice, and each first jet orifice is linked together with the inside of drilling liquid distribution drill bit, and the medicament that injects through the coiled tubing spouts through each first jet orifice, can carry out the drilling of breaking earth when putting the coiled tubing down, adjust the; adjustable radial cloth liquid mode of entering after accomplishing axial cloth liquid, put in the valve ball to the cloth liquid drill bit that creeps into through the coiled tubing this moment, the valve ball carries out the setting to the disk seat and carries out the shutoff to the inside of the cloth liquid drill bit that creeps into, the disk seat gliding to the position with each second jet orifice phase separation under the effect of medicament pressure, each second jet orifice is linked together with the inside of the cloth liquid drill bit that creeps into, thereby carry out radial cloth liquid to the medicament through each second jet orifice, increase the radial cloth liquid area of drilling, it is bigger to make the repair area, only need a batch of brill can accomplish axial cloth liquid and radial cloth liquid, simplify the operation flow, improve the operating efficiency greatly. In addition, after the operation is finished at the preset depth, the radial liquid distribution can be continuously carried out at the other position above the preset depth by lifting the continuous pipe, so that the larger transformation volume can be obtained, and the better transformation effect can be achieved.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
FIG. 1: do the utility model discloses the drilling cloth liquid device is in the front view cross-sectional view under the state of creeping into.
FIG. 2: do the utility model discloses creep into the liquid distribution device and be in the front view cross-sectional view under the radial liquid distribution state.
FIG. 3: a partial enlarged view of the position a in fig. 2.
FIG. 4: do the utility model discloses normal position repair system is in the structural schematic under the state of creeping into.
FIG. 5: do the utility model discloses normal position repair system is in the structure schematic diagram under the radial cloth liquid state.
The utility model provides an reference numeral does:
1. drilling a liquid distribution drill bit; 101. An upper section of the drill bit;
1011. a second injection hole; 1012. A limiting step;
102. a valve seat; 1021. A sealing groove;
103. a lower section of the drill bit; 1031. A first injection hole;
104. shearing the pin; 105. A first seal ring;
106. a valve ball; 107. A second seal ring;
2. releasing the hands; 3. A connector;
4. a water pump; 5. A drum;
6. a drive device; 7. A coiled tubing;
8. an injection head; 9. And (6) drilling.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
Implementation mode one
As shown in fig. 1 to 3, the utility model provides a drilling liquid distribution device, which is arranged at the bottom of a continuous pipe 7 and drills into the underground to a preset depth. The drilling liquid distribution device comprises a drilling liquid distribution drill bit 1, wherein: the drilling liquid distribution drill bit 1 is of a cylindrical structure with an open top and a closed bottom, which are arranged in the vertical direction, the top of the drilling liquid distribution drill bit 1 is connected with the bottom of the continuous pipe 7, the bottom of the drilling liquid distribution drill bit 1 is provided with a plurality of first injection holes 1031 for carrying out axial liquid distribution, the upper part of the drilling liquid distribution drill bit 1 is provided with a plurality of second injection holes 1011 for carrying out radial liquid distribution, each first injection hole 1031 and each second injection hole 1011 are communicated with the inside of the drilling liquid distribution drill bit 1, a valve seat 102 which can be fixed and slide is arranged inside the drilling liquid distribution drill bit 1, and the valve seat 102 is of a cylindrical structure with an open top and an open bottom, which are arranged in the vertical direction; when the drilling liquid distribution drill bit 1 is in a drilling state, the valve seat 102 is fixed inside the drilling liquid distribution drill bit 1, the valve seat 102 seals each second injection hole 1011, and only each first injection hole 1031 is communicated with the inside of the drilling liquid distribution drill bit 1; when the drilling liquid distribution drill bit 1 is in a radial liquid distribution state, the valve ball 106 is thrown into the drilling liquid distribution drill bit 1 through the continuous pipe 7, the valve ball 106 is seated on the top of the valve seat 102 and seals the interior of the drilling liquid distribution drill bit 1, so that the first injection holes 1031 are sealed through the matching of the valve seat 102 and the valve ball 106, the valve seat 102 slides downwards to the position separated from the second injection holes 1011, and the second injection holes 1011 are communicated with the interior of the drilling liquid distribution drill bit 1.
The utility model discloses a plurality of first jet orifices 1031 and a plurality of second jet orifices 1011 have been seted up respectively on the bottom and the upper portion of the cloth liquid drill bit that creeps into 1, can carry out axial cloth liquid to the medicament in the injection drilling 9 through each first jet orifice 1031, can carry out radial cloth liquid to the medicament in the injection drilling 9 through each second jet orifice 1011. Through adjusting first jet orifice 1031 and second jet orifice 1011 and the inside break-make state of the cloth liquid drill bit that creeps into, steerable the utility model discloses switch under two kinds of mode, when being in the mode of creeping into, valve seat 102 is fixed in the inside of the cloth liquid drill bit 1 that creeps into, and valve seat 102 blocks each second jet orifice 1011, each first jet orifice 1031 is linked together with the inside of the cloth liquid drill bit 1 that creeps into, the medicament of injecting through coiled tubing 7 spouts through each first jet orifice 1031, can break the earth and bore when putting coiled tubing 7 down, adjust the drilling depth according to the operation needs, carry out axial cloth liquid through each first jet orifice 1031 after reaching the preset depth; the adjustable radial cloth liquid mode that gets into after accomplishing axial cloth liquid, put into valve ball 106 in the cloth liquid drill bit 1 of creeping into through continuous pipe 7 this moment, valve ball 106 carries out the setting to valve seat 102 and carries out the shutoff to the inside of the cloth liquid drill bit 1 of creeping into, valve seat 102 gliding under the effect of medicament pressure reaches the position with each second jet orifice 1011 phase separation, each second jet orifice 1011 is linked together with the inside of the cloth liquid drill bit 1 of creeping into, thereby carry out radial cloth liquid to the medicament through each second jet orifice 1011, increase the radial cloth liquid area of drilling 9, make the repair area bigger, only need a brill can accomplish axial cloth liquid and radial cloth liquid, the simplified operation flow, improve the operating efficiency greatly. In addition, after the operation is finished at the preset depth, the radial liquid distribution can be continuously carried out at another position above the preset depth by lifting the continuous pipe 7, so that the larger transformation volume can be obtained, and the better transformation effect can be achieved.
The utility model discloses an optional embodiment, as shown in fig. 1, fig. 2, it still includes releasing 2 to creep into the liquid distribution device, and releasing 2 sets up and creeps into between liquid distribution drill bit 1 and the coiled tubing 7, through releasing 2's setting, can carry out releasing operation under emergency to disconnection coiled tubing 7 with creep into being connected of liquid distribution drill bit 1, make coiled tubing 7 can safely play out, thereby guarantee the safety of coiled tubing 7.
In this embodiment, as shown in fig. 1 and fig. 2, the drilling liquid distribution device further includes a connector 3, the connector 3 is disposed between the releasing element 2 and the continuous pipe 7, the bottom of the releasing element 2 is connected to the top of the drilling liquid distribution drill bit 1, the top of the releasing element 2 is connected to the bottom of the connector 3, the top of the connector 3 is connected to the bottom of the continuous pipe 7, and the connector 3 plays a role of starting and stopping, so as to ensure that the releasing element 2 is stably connected to the drilling liquid distribution drill bit 1.
Further, release 2 may be implemented using, but not limited to, a mechanical release or a hydraulic release.
Further, the connector 3 may be, but is not limited to, a screw type connector, a roll type connector, or a slip type connector, and can be guaranteed to bear a certain load.
Specifically, as shown in fig. 1 and fig. 2, the drilling liquid distribution drill bit 1 includes an upper drill bit section 101 and a lower drill bit section 103, the upper drill bit section 101 is a top opening and bottom opening cylindrical structure arranged along the vertical direction, the lower drill bit section 103 is a top opening and bottom sealing cylindrical structure arranged along the vertical direction, the top of the upper drill bit section 101 is connected with the bottom of the coiled tubing 7, the bottom of the upper drill bit section 101 is connected with the top of the lower drill bit section 103, each second injection hole 1011 is opened in the middle of the upper drill bit section 101, and each first injection hole 1031 is opened in the bottom of the lower drill bit section 103.
Furthermore, each first injection hole 1031 is uniformly distributed at the bottom of the lower drill segment 103, and each first injection hole 1031 is formed along the axial direction of the lower drill segment 103 and/or forms an included angle with the axial direction of the lower drill segment 103, and the included angle is smaller than 90 degrees, so that each first injection hole 1031 can axially distribute the liquid to the medicament.
Further, each second injection hole 1011 is evenly arranged along the circumference of drill bit upper segment 101, and each second injection hole 1011 is seted up along the radial of drill bit upper segment 101 to guarantee that each second injection hole 1011 can carry out radial cloth liquid to the medicament.
Further, as shown in fig. 1 and fig. 2, an external thread is provided on an outer wall of a lower portion of the upper drill bit section 101, an internal thread is provided on an inner wall of an upper portion of the lower drill bit section 103, the upper drill bit section 101 and the lower drill bit section 103 are connected in a matching manner through the internal thread and the external thread, a first sealing ring 105 is provided between the outer wall of the lower portion of the upper drill bit section 101 and the inner wall of the lower drill bit section 103, and the first sealing ring 105 is compressed between the outer wall of the upper drill bit section 101 and the inner wall of the lower drill bit section 103 to ensure the sealing connection between the upper drill bit.
In an optional embodiment of the present invention, as shown in fig. 1, the valve seat 102 is located inside the upper drill bit section 101, and when the drilling liquid distribution drill bit 1 is in the drilling state, a shear pin 104 is connected between an outer wall of the valve seat 102 and an inner wall of the upper drill bit section 101, and the valve seat 102 is fixed in the drilling liquid distribution drill bit 1 through the shear pin 104.
Further, the number of shear pins 104 may be adjusted according to the needs of the job, and the shear force of the shear pins 104 may be selected from copper shear pins or steel shear pins according to the needs of the job.
In an optional embodiment of the present invention, as shown in fig. 1 to 3, the inner wall of the valve seat 102 is a step shape with a diameter decreasing from top to bottom, so as to form a limiting step 1012 on the inner wall of the valve seat 102, the limiting step 1012 is located below each second injection hole 1011, and the distance between the limiting step 1012 and each second injection hole 1011 is greater than the length of the valve seat 102, when the drilling liquid distribution drill bit 1 is in a radial liquid distribution state, the valve ball 106 slides down to the position where the bottom of the valve ball 106 abuts against the limiting step 1012, so as to limit the sliding distance of the valve seat 102.
Further, as shown in fig. 1 to 3, an outer wall of the valve seat 102 is attached to an inner wall of the upper drill bit section 101, a second sealing ring 107 is disposed between the outer wall of the valve seat 102 and the inner wall of the upper drill bit section 101, and the second sealing ring 107 is compressed between the outer wall of the valve seat 102 and the inner wall of the upper drill bit section 101 to ensure the sealing connection between the valve seat 102 and the upper drill bit section 101.
Further, annular seal groove 1021 has been seted up along disk seat 102's circumference on disk seat 102's the top inner wall, the inner wall of seal groove 1021 is the circular conical surface, the inclination of circular conical surface cooperates with the bottom of valve ball 106, when boring into liquid distribution drill bit 1 and being in radial liquid distribution state, valve ball 106 sits and seals in seal groove 1021, and the bottom outer wall of valve ball 106 closely laminates with the inner wall of seal groove 1021, guarantees that valve ball 106 and disk seat 102 cooperate and can carry out the shutoff to the inside of boring into liquid distribution drill bit 1, thereby ensures the utility model discloses can switch to radial liquid distribution mode smoothly by boring into the mode.
The utility model discloses a creep into liquid distribution device at the operation in-process, according to the field operation operating mode, at first make the medicament obtain changeable jet speed through each first jet orifice 1031, creep into and carry out axial cloth liquid in drilling 9 to cloth liquid well to can guarantee the requirement of field drilling 9 to the degree of depth. After the drilling of the drill hole 9 is completed, the interior of the drilling liquid distribution drill bit 1 is sealed by throwing the valve ball 106 with a corresponding size, chemicals are continuously introduced into the interior of the drilling liquid distribution drill bit 1 above the valve ball 106, so that a pressure difference can be established between the upper side and the lower side of the valve ball 106, when the internal pressure of the drilling liquid distribution drill bit 1 above the valve ball 106 reaches the shearing pressure of the shearing pin 104, the shearing pin 104 is sheared, the valve seat 102 slides downwards to the position separated from each second injection hole 1011 under the action of the pressure, each second injection hole 1011 is communicated with the interior of the drilling liquid distribution drill bit 1, the chemicals are sprayed out from each second injection hole 1011 to form a radial jet velocity, thereby completing the radial perforation and liquid distribution operation and expanding the liquid distribution area of the drill hole at the depth position. In actual operation, the jet speed of the medicament can be adjusted according to the depth required by field liquid distribution so as to obtain different liquid distribution ranges.
After the operation is finished at the preset depth, the continuous pipe 7 can be lifted up to continue to perform radial liquid distribution at another position above the preset depth, so that the radial liquid distribution operation can be performed for multiple times at different depths according to the field requirements.
The utility model discloses a creep into liquid distribution device's characteristics and advantage are:
firstly, this creep into cloth liquid device is through the switching to drilling, cloth liquid state, and the accessible is bored once and can be accomplished the drilling and axial cloth liquid and the radial cloth liquid of drilling 9, reduces staff's intensity of labour, improves the operating efficiency greatly, and the security is higher, reduces the operating cost moreover.
After the drilling liquid distribution device finishes liquid distribution operation at one depth in the drill hole 9, the drilling liquid distribution device can be lifted to the other depth and continues to perform radial liquid distribution, so that the in-situ repair liquid distribution range is enlarged, a larger transformation area is obtained, and a better transformation effect is achieved.
Second embodiment
As shown in fig. 4 and 5, the utility model provides an in-situ repair system, this in-situ repair system include that continuous pipe 7, water pump 4 and foretell creep into the cloth liquid device, and the one end of continuous pipe 7 is connected with the delivery port of water pump 4, and the other end of continuous pipe 7 is connected with the cloth liquid device of creeping into.
Further, the water pump 4 may be, but is not limited to, a high pressure water pump.
In an optional embodiment of the utility model, as shown in fig. 4 and 5, the in-situ repair system further includes a roller 5 and a driving device 6, the roller 5 is used for adjusting the length of lowering the coiled tubing 7, the driving device 6 is used for driving the roller 5 to rotate, the coiled tubing 7 is wound on the roller 5, the driving device 6 is connected with the rotating shaft of the roller 5 through a transmission structure, the roller 5 is driven to rotate through the driving device 6 and the transmission structure, thereby adjusting the length of the coiled tubing 7 wound on the roller 5, and further adjusting the depth of lowering the coiled tubing 7.
Further, the driving device 6 may be, but is not limited to, a hydraulic cylinder.
In an optional embodiment of the present invention, as shown in fig. 4 and 5, the in-situ repair system further includes an injection head 8, the injection head 8 is disposed at the top of the borehole 9, and the coiled tubing 7 passes through the injection head 8 and extends into the borehole 9. The injection head 8 is matched with the roller 5 to finish the operation of lowering and lifting the coiled tubing 7, in addition, the injection head 8 can also play a role in clamping the coiled tubing 7, overcomes the jacking force of the pressure in the drill hole 9 on the coiled tubing 7, and controls the lowering and lifting speed of the coiled tubing 7.
The in-situ repair system of the utility model winds the continuous pipe 7 on the roller 5, one end of the continuous pipe 7 is connected with the water pump 4, the other end of the continuous pipe 7 is sequentially connected with the connector 3, the releasing tool 2 and the drilling liquid distribution drill bit 1, according to the on-site requirement, the medicine is pumped into the continuous pipe 7 through the water pump 4, and the flow rate of the medicine is controlled, so that different jet velocities are obtained at the first jet holes 1031, then different liquid injection well bores are obtained, after the drilling liquid distribution drill bit 1 reaches the preset depth, the valve ball 106 is thrown into the continuous pipe 7 from the ground, the valve ball 106 falls into the liquid distribution drill bit 1 and is matched with the valve seat 102 to seal the inside of the drilling liquid distribution drill bit 1, each first jet hole 1031 does not perform axial liquid distribution any more, each second jet hole 1011 is communicated with the inside of the drilling liquid distribution drill bit 1, and then radial liquid distribution is performed through each second jet hole 1011, during operation, higher jet speed can be obtained through the pressure of the water lifting pump 4, so that the diameter and radial liquid distribution range of the drill hole 9 at the position are enlarged, and the number and density of the second injection holes 1011 can be adjusted according to field requirements. After the operation at the preset depth is finished, the connector 3, the releasing tool 2 and the drilling liquid distribution drill bit 1 are lifted by the injection head 8, after the drilling liquid distribution drill bit 1 reaches another depth, radial jet flow can be repeatedly carried out, finally, larger in-situ liquid distribution volume can be formed, and the treated pollution volume is larger and more excellent.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.
Claims (14)
1. The utility model provides a creep into liquid distribution device, its sets up in the bottom of coiled tubing (7) to bore into the underground and predetermine the degree of depth, its characterized in that, creep into liquid distribution device including drilling liquid distribution drill bit (1), wherein:
the drilling liquid distribution drill bit (1) is of a cylindrical structure with an open top and a sealed bottom, the top of the drilling liquid distribution drill bit (1) is connected with the bottom of the continuous pipe (7), a plurality of first injection holes (1031) for axial liquid distribution are formed in the bottom of the drilling liquid distribution drill bit (1), a plurality of second injection holes (1011) for radial liquid distribution are formed in the upper portion of the drilling liquid distribution drill bit (1), each first injection hole (1031) and each second injection hole (1011) are communicated with the inside of the drilling liquid distribution drill bit (1), a valve seat (102) capable of being fixed and sliding is arranged in the drilling liquid distribution drill bit (1), and the valve seat (102) is of a cylindrical structure with an open top and an open bottom, which are arranged in the vertical direction;
the drilling liquid distribution drill bit (1) is in a drilling state, the valve seat (102) is fixed inside the drilling liquid distribution drill bit (1), and the valve seat (102) seals each second injection hole (1011); the drilling liquid distribution drill bit (1) is in a radial liquid distribution state, a valve ball (106) is thrown into the drilling liquid distribution drill bit (1), the valve ball (106) is seated on the top of the valve seat (102) and seals the inside of the drilling liquid distribution drill bit (1), and the valve seat (102) slides downwards to be separated from the second injection holes (1011).
2. The drilling fluid distribution device according to claim 1, characterized in that the drilling fluid distribution device further comprises a back-off element (2), the back-off element (2) being arranged between the drilling fluid distribution drill bit (1) and the coiled tubing (7).
3. The drilling fluid distribution device of claim 2, further comprising a connector (3), wherein the connector (3) is arranged between the releasing element (2) and the coiled tubing (7), the bottom of the releasing element (2) is connected with the top of the drilling fluid distribution drill bit (1), the top of the releasing element (2) is connected with the bottom of the connector (3), and the top of the connector (3) is connected with the bottom of the coiled tubing (7).
4. The drilling liquid distribution device according to claim 1, wherein the drilling liquid distribution drill bit (1) comprises an upper drill bit section (101) and a lower drill bit section (103), the upper drill bit section (101) is a cylindrical structure with an open top and an open bottom arranged in the vertical direction, the lower drill bit section (103) is a cylindrical structure with an open top and a closed bottom arranged in the vertical direction, the top of the upper drill bit section (101) is connected with the bottom of the coiled tubing (7), the bottom of the upper drill bit section (101) is connected with the top of the lower drill bit section (103), each second injection hole (1011) is arranged in the middle of the upper drill bit section (101), and each first injection hole (1031) is arranged at the bottom of the lower drill bit section (103).
5. The drilling fluid distribution device of claim 4, wherein each of the first injection holes (1031) is distributed uniformly at the bottom of the lower bit section (103), and each of the first injection holes (1031) is opened along the axial direction of the lower bit section (103) and/or at an angle with the axial direction of the lower bit section (103), and the angle is smaller than 90 °.
6. The drilling fluid distribution device of claim 4, wherein each of the second injection holes (1011) is uniformly arranged along the circumferential direction of the upper drill bit section (101), and each of the second injection holes (1011) is opened along the radial direction of the upper drill bit section (101).
7. The drilling fluid distribution device as recited in claim 4, characterized in that a lower outer wall of the upper drill bit section (101) is in threaded connection with an upper inner wall of the lower drill bit section (103), and a first sealing ring (105) is arranged between the lower outer wall of the upper drill bit section (101) and the upper inner wall of the lower drill bit section (103).
8. The drilling and liquid distribution device as claimed in claim 4, characterized in that the valve seat (102) is located inside the upper drill bit section (101), the drilling and liquid distribution drill bit (1) is in a drilling state, and a shear pin (104) is connected between the outer wall of the valve seat (102) and the inner wall of the upper drill bit section (101).
9. The drilling liquid distribution device according to claim 8, characterized in that the inner wall of the valve seat (102) is stepped with a diameter decreasing from top to bottom, so as to form a limiting step (1012) on the inner wall of the valve seat (102) for limiting the downward sliding of the valve seat (102), the limiting step (1012) is located below each second injection hole (1011), the distance between the limiting step (1012) and each second injection hole (1011) is greater than the length of the valve seat (102), the drilling liquid distribution drill bit (1) is in a radial liquid distribution state, and the valve ball (106) slides down to a position where the bottom of the valve ball (106) abuts against the limiting step (1012).
10. The drilling fluid distribution device according to claim 8 or 9, characterized in that the outer wall of the valve seat (102) is in abutment with the inner wall of the upper drill bit section (101), and a second sealing ring (107) is arranged between the outer wall of the valve seat (102) and the inner wall of the upper drill bit section (101).
11. The drilling liquid distribution device of claim 1, characterized in that an annular sealing groove (1021) matched with the valve ball (106) is formed in the inner wall of the top of the valve seat (102) along the circumferential direction of the valve seat (102), the drilling liquid distribution drill bit (1) is in a radial liquid distribution state, the valve ball (106) is seated in the sealing groove (1021), and the outer wall of the bottom of the valve ball (106) is tightly attached to the inner wall of the sealing groove (1021).
12. An in-situ remediation system, characterized in that the in-situ remediation system comprises a coiled tubing (7), a water pump (4) and the drilling fluid distribution device of any one of claims 1 to 11, wherein one end of the coiled tubing (7) is connected to the water pump (4) and the other end of the coiled tubing (7) is connected to the drilling fluid distribution device.
13. The in-situ remediation system of claim 12 further comprising a drum (5) for adjusting the lowering length of the coiled tubing (7) and a drive means (6) for driving the drum (5) to rotate, wherein the coiled tubing (7) is wound around the drum (5), and the drive means (6) is connected to the shaft of the drum (5) via a transmission.
14. The in situ repair system of claim 12, further comprising an injection head (8), the injection head (8) being arranged at the top of a borehole (9), the coiled tubing (7) extending through the injection head (8) into the borehole (9).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021274328.XU CN213087970U (en) | 2020-07-03 | 2020-07-03 | Drilling liquid distribution device and in-situ repair system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021274328.XU CN213087970U (en) | 2020-07-03 | 2020-07-03 | Drilling liquid distribution device and in-situ repair system |
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| CN213087970U true CN213087970U (en) | 2021-04-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216856A (en) * | 2021-06-09 | 2021-08-06 | 中冶建筑研究总院有限公司 | Rotary spraying type in-situ repairing drilling tool |
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2020
- 2020-07-03 CN CN202021274328.XU patent/CN213087970U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216856A (en) * | 2021-06-09 | 2021-08-06 | 中冶建筑研究总院有限公司 | Rotary spraying type in-situ repairing drilling tool |
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