CN114278252A - Water stopping equipment for geological water pumping test and use method - Google Patents
Water stopping equipment for geological water pumping test and use method Download PDFInfo
- Publication number
- CN114278252A CN114278252A CN202111564358.3A CN202111564358A CN114278252A CN 114278252 A CN114278252 A CN 114278252A CN 202111564358 A CN202111564358 A CN 202111564358A CN 114278252 A CN114278252 A CN 114278252A
- Authority
- CN
- China
- Prior art keywords
- water
- pipe
- air bag
- gasbag
- top cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The utility model relates to a stagnant water equipment and application method for geology is pumped water experimental, belong to the field of geological exploration technique, equipment includes pipe and sealing up ware, set up the hole of crossing that supplies grout to flow through on the sheathed tube pipe wall, the sealing up ware includes the slip casting pipe, the slip casting pipe is located the cover intraductal, the whitewashing hole has been seted up on the pipe wall of slip casting pipe, the other water conservancy diversion gasbag that is equipped with of drill way that just is located the whitewashing hole on the outer wall of slip casting pipe, the sealing up ware includes the gas tube, the gas tube is used for aerifing the guide flow gasbag, the one end and the intraductal butt of sleeve pipe that slip casting pipe was kept away from to the water conservancy diversion gasbag, cross the grout hole and be located same space that is formed by the water conservancy diversion gasbag with the whitewashing hole. This application has established through the water conservancy diversion gasbag and has supplied grout to flow to the outside passageway of cover pipe from the sealing-up device, and grout gets into the back in the clearance between sleeve pipe and the wall of a well, deflates the water conservancy diversion gasbag, and the sealing-up device just no longer contacts with the sleeve pipe, only needs to remove the sealing-up device alright take out it from the intraductal casing, and is easy and simple to handle, has improved the experimental operating efficiency that draws water.
Description
Technical Field
The application relates to the field of geological exploration technology, in particular to a water stopping device for a geological water pumping test and a using method.
Background
Hydrogeological exploration refers to hydrogeological investigation and research work carried out to find out hydrogeological conditions of an area, and aims to master the causes, distribution and motion rules of underground water and surface water, so as to provide a basis for reasonably exploiting and utilizing water resources and correctly designing and constructing foundations and piling projects. Groundwater monitoring refers to the task of taking a sample of groundwater from a well for detection by drilling a well into the subterranean formation.
The operation method for obtaining water samples in different geological layers comprises the following steps: different aquifers are mutually isolated through a water stopping device in an exploration drilling well, a water sample is extracted from a target water layer, and a water stopping device is needed in the implementation process. The cement plugging method is a commonly used mode, a casing is inserted into a well, a water stopper extends into the casing, cement slurry is filled into a space between the casing and a well wall at a position to be layered by the water stopper, water layer plugging can be realized after the cement slurry is solidified, and then the water stopper is taken out of the casing, so that a water pumping test can be started.
With respect to the related art in the above, the inventors consider that: grout passes through between water stop entering sleeve pipe and the wall of a well, and then the water stop is taken out from the well and the sleeve pipe stays in the well, and the cooperation of sleeve pipe and water stop needs to satisfy simultaneously can supply that mud stably flows and the mutual dismantlement separation of being convenient for, and the operation of most water stop when removing self and sheathed tube relation of connection is comparatively complicated inconvenient among the correlation technique, has reduced the operating efficiency of the test of drawing water.
Disclosure of Invention
In order to improve the problems, the application provides a water stopping device for a geological water pumping test and a using method.
In a first aspect, the application provides a water stopping device for geological pumping test adopts following technical scheme:
the utility model provides a stagnant water equipment for geology is pumped water experimentally, includes sleeve pipe and sealing up ware, offer the grout hole of crossing that supplies the grout to flow through on the sheathed tube pipe wall, the sealing up ware includes the slip casting pipe, the slip casting pipe is located the sleeve pipe, the whitewashing hole has been seted up on the pipe wall of slip casting pipe, on the outer wall of slip casting pipe and be located the other water conservancy diversion gasbag that is equipped with in drill way in whitewashing hole, the sealing up ware includes the gas tube, the gas tube is used for aerifing in the water conservancy diversion gasbag, the one end and the intraductal wall butt of sleeve pipe that slip casting pipe was kept away from to the water conservancy diversion gasbag, cross the grout hole and whitewashing hole and be located same space that is formed by the water conservancy diversion gasbag.
Through adopting above-mentioned technical scheme, the inflation tube aerifys the back in the guide airbag, and the guide airbag inflation has formed the passageway that supplies water mud to pass through between slip casting pipe and sleeve pipe, and grout enters the back in the clearance between sleeve pipe and the wall of a well, deflates the guide airbag, and the sealing-up device just no longer contacts with the sleeve pipe, only needs to remove the sealing-up device alright take out it from the intraductal casing, and is easy and simple to handle, has improved the operating efficiency of the test of drawing water.
Preferably, a check valve is arranged in the grouting pipe and comprises a check spring and a valve plate, one end of the check spring is fixedly connected with the inner end face of the grouting pipe, the other end of the check spring is fixedly connected with the valve plate, and the grouting hole is located on one side, facing the check spring, of the valve plate when the check spring is in a natural state.
By adopting the technical scheme, the existence of the check valve reduces the possibility that the cement slurry flows back in the grouting pipe, and after grouting is finished, the cement slurry flowing out of the casing pipe can basically and stably exist outside the casing pipe.
Preferably, the diversion air bag comprises a supporting air bag and a top cover air bag, the supporting air bag is positioned on one side of the guniting hole close to the bottom of the well, and the top cover air bag is positioned on one side of the guniting hole far away from the bottom of the well; the grouting device is characterized by further comprising a supporting mechanism, wherein the supporting mechanism comprises a bottom supporting rod, the bottom supporting rod is connected to the end part, facing the bottom of the well, of the grouting pipe, and the bottom supporting rod is abutted to one side, away from cement slurry, of the supporting air bag.
Through adopting above-mentioned technical scheme, support gasbag and top cap gasbag enclose into the passageway that supplies grout to flow through jointly, because support gasbag is used for bearing the gravity of grout, the bottom bar supports it at support gasbag bottom in, improves the support stability who supports the gasbag.
Preferably, the side of the grouting pipe facing the well bottom is coaxially and fixedly connected with an installation part, the bottom support rod is hinged with a port of the installation part facing the well bottom, the axis of the grouting pipe is located on a rotating plane of the bottom support rod, and the water stopper further comprises a control assembly for controlling the rotation of the bottom support rod.
Through adopting above-mentioned technical scheme, the bottom stay rotates to and supports gasbag bottom butt when needing to support the support gasbag under control assembly's effect, when taking out the water stop from the well, control assembly control bottom stay rotates, makes the whole center of leaning on to the slip casting pipe of bottom stay, occupies less radial space, provides convenience for taking out of water stop ware.
Preferably, the control assembly includes transfer line and butt plate, the one end of transfer line and one side fixed connection of valve plate orientation check spring, the other end and butt plate fixed connection, the butt plate is located the installation department, the one end of bottom stay pole slides with the butt plate and is connected from one side of transfer line, and the direction of sliding does the radial of butt plate.
By adopting the technical scheme, in the process of injecting cement slurry, the valve plate of the check valve is pressed to move, the abutting plate in the control assembly moves by utilizing the pressure, and the abutting plate pushes the end part of the bottom support rod to enable the bottom support rod to be pushed to rotate, so that the rotation control of the control assembly on the bottom support rod is realized.
Preferably, the supporting mechanism further comprises a pressing disc, and the pressing disc is fixedly connected to the grouting pipe and is abutted to one side, away from the cement slurry, of the top cover air bag.
Through adopting above-mentioned technical scheme, compress tightly the dish and form the support to the top cap gasbag, reduce because grout pressure is too big and to the stability influence that the top cap gasbag caused.
Preferably, the top cap gasbag is towards one side of supporting the gasbag and be close to sleeve pipe part fixedly connected with shutoff gasbag, the gas tube includes mutually independent support trachea, top cap trachea and shutoff trachea, support trachea and supporting the gasbag intercommunication, shutoff trachea and shutoff gasbag intercommunication, top cap trachea and top cap gasbag intercommunication.
By adopting the technical scheme, the plugging air bag is not inflated in the grouting process, the plugging air bag is inflated after the grouting is finished, the plugging air bag is inflated to seal the grout passing hole from the inner side of the casing pipe after being inflated, the cement grout inside and outside the casing pipe is blocked, at the moment, the gas in the supporting air bag is released, the cement grout in the casing pipe is lost, and the cement grout outside the casing pipe continues to exist until the cement grout is solidified.
Preferably, fixedly connected with places the string bag that is used for holding the shutoff gasbag on the top cap gasbag, it is made by the rubber band to place the string bag.
Through adopting above-mentioned technical scheme, at the in-process of pouring the cement thick liquid, place the string bag and be used for the temporary fixation not aerated shutoff gasbag, reduce the influence of shutoff gasbag to the flow state of the grout that flows in the water conservancy diversion gasbag.
Preferably, the supporting mechanism further comprises a top cover sloping table and a supporting sloping table, the top cover sloping table and the supporting sloping table are fixedly connected with the inner wall of the sleeve, the slurry passing hole is located between the top cover sloping table and the supporting sloping table, the top cover sloping table is abutted to one side of the top cover air bag, which deviates from the plugging air bag, and the supporting sloping table is abutted to the end of the plugging air bag, which is far away from the top cover air bag.
Through adopting above-mentioned technical scheme, shutoff gasbag back that begins work, support sloping platform and top cap sloping platform carry out the butt respectively to shutoff gasbag edge, one side that the top cap gasbag deviates from the shutoff gasbag, improve the state stability of shutoff gasbag.
In a second aspect, the application provides a use method of the above water stopping device for geological water pumping test, which adopts the following technical scheme:
s1: inserting a casing and a water stopper into the well after drilling;
s2: inflating the top cover airbag and the supporting airbag through the inflation tube to expand the top cover airbag and the supporting airbag;
s3: injecting cement slurry into the water stopper through a grouting pipe;
s4: stopping grouting after sufficient cement is filled between the sleeve and the well wall, and standing;
s5: the gas in the supporting air bag is discharged through the supporting air pipe, and meanwhile, the plugging air bag is inflated through the plugging air pipe to expand;
s6: and when the cement between the sleeve and the well wall is completely solidified, the gas in the plugging air bag and the top cover air bag is discharged, and the water stopper is taken out.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the arrangement of the diversion air bag, after the inflation tube inflates the diversion air bag, the diversion air bag expands and forms a channel for the water slurry to pass through between the grouting tube and the sleeve, after the cement slurry enters a gap between the sleeve and the well wall, the diversion air bag deflates, the water stopper and the sleeve are not in contact with each other any more, the water stopper can be taken out from the sleeve only by moving the water stopper, the operation is simple and convenient, and the operation efficiency of a water pumping test is improved;
2. through the arrangement of the supporting mechanism, the bottom supporting rod, the supporting inclined table, the pressing disc and the top cover inclined table respectively support the supporting air bag and the top cover air bag, so that the probability that the cement slurry pushes the diversion air bag to deviate due to overlarge grouting pressure is reduced;
3. through the setting of shutoff gasbag, after slip casting is accomplished and a period of time that stews, the shutoff gasbag inflation will cross the thick liquid hole shutoff with following the sleeve pipe inboard, simultaneously because the support gasbag spills gas, the grout in the water conservancy diversion gasbag loses the support and runs off, at the in-process of taking out the stagnant water ware, just can hardly produce the space obstacle by cement can to the removal of stagnant water ware again in the sleeve pipe.
Drawings
Fig. 1 is a schematic structural diagram of a water stopping device for a geological water pumping test in the embodiment of the application when cement slurry is poured.
FIG. 2 is a schematic diagram of a check valve and control assembly for use in implementing the cementing process in an embodiment of the present application.
Fig. 3 is a schematic sectional view for illustrating the water stopper for blocking the grout hole in the embodiment of the present application.
Fig. 4 is a schematic structural diagram for showing the water stop being taken out from the casing in the embodiment of the present application.
Description of reference numerals: 1. a sleeve; 11. slurry passing holes; 2. a water stopper; 21. a grouting pipe; 211. a guniting hole; 212. an installation part; 23. a non-return valve; 231. a non-return spring; 232. a valve plate; 24. a diversion air bag; 241. a roof airbag; 2411. placing a net bag; 242. a support airbag; 25. plugging the air bag; 26. an inflation tube; 261. a top cover air pipe; 262. supporting the air pipe; 263. blocking the trachea; 3. a support mechanism; 31. a top cover ramp; 32. supporting the sloping bench; 33. a compression disc; 34. a bottom stay; 35. a control component; 351. a transmission rod; 352. a butt joint plate; 4. and (5) placing a step.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
In a first aspect, the embodiment of the application discloses a water stopping device for geological water pumping test, as shown in fig. 1, the water stopping device comprises a casing pipe 1 and a water stopper 2, the casing pipe 1 is to be inserted into an exploration drilling well, a gap is reserved between the casing pipe 1 and the well wall, and the water stopper 2 is used for filling cement into the gap.
As shown in figures 1 and 2, during the drilling process, a placing step 4 for placing the end part of the casing 1 is reserved on the wall of the exploration drilling well, and the end surface of the casing 1 facing the bottom of the well is abutted against the table surface of the placing step 4. The water stopper 2 comprises a grouting pipe 21, the grouting pipe 21 is positioned in the sleeve 1, and a grouting hole 211 is formed in the pipe wall of the grouting pipe 21 and positioned close to the end part of the grouting pipe facing the bottom of the well; the casing 1 is provided with a grout passing hole 11 at a position close to the placing step 4, when the water stopper 2 works, the grouting pipe 21, the casing 1 and the exploration drilling are coaxial, and the height of the grout spraying hole 211 is slightly lower than that of the grout passing hole 11.
As shown in fig. 1 and 2, a diversion air bag 24 is fixedly connected to the grouting pipe 21 and located beside the grout hole 211, the diversion air bag 24 comprises a support air bag 242 and a top cover air bag 241, the support air bag 242 is located below the grout hole 211, and the support air bag 242 is located above the grout hole 211; the water stopper 2 comprises an inflation tube 26, the inflation tube 26 comprises a supporting air tube 262 and a top cover air tube 261, the supporting air tube 262 and the top cover air tube 261 are both hard tubes fixedly connected to the outer wall of the grouting tube 21, the top cover air tube 261 is communicated with the top cover air bag 241, and the supporting air tube 262 penetrates through the top cover air bag 241 and is communicated with the supporting air bag 242. After the two diversion air bags 24 are inflated through the inflation tube 26, the supporting air bags 242 and the top cover air bags 241 are expanded, the edges of the supporting air bags 242 far away from the grouting tubes 21 are abutted to the wall of the well below the placement step 4, the edges of the top cover air bags 241 far away from the grouting tubes 21 are abutted to the inner wall of the sleeve 1 above the grout passing hole 11, and at the moment, a closed channel which can supply grout to flow from the grout spraying hole 211 to the grout passing hole 11 is built between the sleeve 1 and the grouting tubes 21 through the diversion air bags 24.
As shown in fig. 1 and 2, a check valve 23 is arranged at the end part of the grouting pipe 21 close to the bottom of the well, the check valve 23 is composed of a check spring 231 and a valve plate 232, one end of the check spring 231 is fixedly connected with the inner end surface of the grouting pipe 21, and the other end is fixedly connected with the center of the plate surface of the valve plate 232; when the check spring 231 is in a natural state, the valve plate 232 is positioned above the grout ejection hole 211. When cement slurry is filled into the grouting pipe 21, the fluid pressure pushes the valve plate 232 to compress the check spring 231, so that the passage formed by the grouting pipe 21 and the guide airbag 24 can be communicated, and the cement slurry can smoothly pass through.
As shown in fig. 1 and 2, the apparatus further includes a support mechanism 3, and during the grouting process, the support mechanism 3 is used for supporting the diversion air bag 24 on a side of the diversion air bag 24 away from the cement slurry, so as to improve the state stability of the diversion air bag 24. The supporting mechanism 3 comprises a pressing disc 33, a top cover sloping platform 31 and a supporting sloping platform 32, the pressing disc 33 is coaxially and fixedly connected to the grouting pipe 21 and located on one side, away from the supporting air bag 242, of the top cover air bag 241, the top cover sloping platform 31 is located on the inner wall of the casing pipe 1 and located above the grout passing hole 11, and after the top cover air bag 241 is inflated and expanded, one side, away from the grout, of the top cover sloping platform 31 is abutted to the pressing disc 33 and the top cover sloping platform 31. The supporting inclined table 32 is located on the inner wall of the casing 1 and close to the end of the casing 1, the top cover inclined table 31 and the supporting inclined table 32 are both annular protrusions with triangular cross sections and coaxially formed on the inner wall of the casing 1 in an integrated manner, and the supporting inclined table 32 is abutted to the placing step 4 at the same time.
As shown in fig. 1 and 2, the support mechanism 3 further includes a bottom support rod 34, a mounting portion 212 is integrally formed at an end portion of the grouting pipe 21 facing the bottom hole, the mounting portion 212 is cylindrical and coaxial with the grouting pipe 21, and the bottom support rod 34 is hinged at an edge of the mounting portion 212 facing the bottom hole. In this embodiment, there are five bottom support rods 34, the five bottom support rods 34 are arranged in an annular array with the axis of the mounting portion 212 as the center, when each bottom support rod 34 rotates, the projections of the straight lines in the length direction in the vertical direction are all the radial directions of the grouting pipe 21, and the length of the bottom support rod 34 within the diameter range of the mounting portion 212 is smaller than the length of the bottom support rod 34 outside the diameter range of the mounting portion 212.
As shown in fig. 2, 3 and 4, the support mechanism 3 further includes a control assembly 35 for controlling the rotation of the bottom support rod 34, the control assembly 35 includes a transmission rod 351 and a abutting plate 352, the transmission rod 351 penetrates through the end surface of the transmission rod 351 along the length direction of the grouting pipe 21, one end of the transmission rod 351 is fixedly connected with the center of the valve plate 232, the other end of the transmission rod is fixedly connected with the abutting plate 352, and the plate surface of the abutting plate 352 is parallel to the plate surface of the valve plate 232 and is perpendicular to the axis of the grouting pipe 21; one end of the bottom stay 34 close to the axis of the mounting part 212 is connected with one side of the abutting plate 352 away from the transmission rod 351 in a sliding mode, and the sliding direction is the radial direction of the abutting plate 352. When the check valve 23 is pressurized by cement slurry, the valve plate 232 moves towards the bottom of the well, the transmission rod 351 pushes the abutting plate 352 to move downwards, the abutting plate 352 pushes one end of the bottom support rod 34 positioned in the mounting portion 212 to move downwards, and when the valve plate 232 is pushed to be flush with the bottom edge of the slurry spraying hole 211, the length direction of the bottom support rod 34 is in the horizontal direction and is abutted with the bottom of the support air bag 242.
As shown in fig. 1 and 3, the water stopper 2 further comprises a blocking airbag 25, the blocking airbag 25 is fixedly connected to one side of the top cover airbag 241 facing the support airbag 242 and close to the casing 1, in this embodiment, the number of the grout passing holes 11 and the number of the grout spraying holes 211 are five, the number of the blocking airbags 25 is the same as the number of the grout passing holes 11, and a single blocking airbag 25 is used for blocking one grout passing hole 11 after grouting is completed. The inflation tube 26 further comprises a blocking air tube 263, the blocking air tube 263 is a soft leather tube, and the blocking air tube 263 penetrates through the top cover air bag 241 and is communicated with the blocking air bag 25. A placing net bag 2411 for temporarily containing the plugging air bag 25 is bonded on the top cover air bag 241, the placing net bag 2411 is made of rubber bands, and in the grouting process, the plugging air bag 25 is wrapped by the placing net bag 2411 and is not inflated; after grouting, the plugging air bag 25 is inflated, gas in the manufactured air bag is discharged at the same time, the plugging air bag 25 expands to prop open or break the placing net bag 2411, the edge of the plugging air bag 25 far away from the top cover air bag 241 is tightly abutted against the supporting inclined table 32, the plugging air bag 25 is tightly attached to the inner wall of the casing 1 to seal the grout passing hole 11, at the moment, cement grout originally located in the diversion air bag 24 loses the supporting effect of the supporting air bag 242 and falls and runs off, and the cement grout between the casing 1 and the wall of the well can still stably exist until solidification.
The implementation principle of the water stopping equipment for the geological water pumping test is as follows:
the diversion air bag 24 expands after being inflated to erect a channel for supplying water slurry to flow from the water stop 2 to the sleeve 1 and the well wall, and after the diversion air bag 24 contracts, the water stop 2 and the sleeve 1 do not have any contact relation, so that space convenience is provided for taking the water stop 2 out of the sleeve 1.
In a second aspect, the embodiment of the present application discloses a practical method of the above water stopping device for geological water pumping test, which together includes the following steps: s1: after drilling, inserting the casing 1 and the water stopper 2 into the well, and enabling the height of the grout spraying hole 211 to be slightly lower than that of the grout passing hole 11;
s2: the top cover air bag 241 and the supporting air bag 242 are inflated through the top cover air pipe 261 and the supporting air pipe 262 to be expanded, and the inflation is stopped after the diversion air bag 24 is tightly abutted against the inner wall of the sleeve 1, and the pressure is maintained;
s3: cement slurry is injected into the water stopper 2 through the grouting pipe 21;
s4: stopping grouting after sufficient cement is filled between the casing 1 and the well wall, and standing for 2-3 hours;
s5: the gas in the supporting air bag 242 is discharged through the supporting air tube 262, and the blocking air bag 25 is inflated through the blocking air tube 263;
s6: and when the cement between the sleeve 1 and the well wall is completely solidified, the gas in the plugging air bag 25 and the top cover air bag 241 is discharged, and the water stopper 2 is taken out.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a stagnant water equipment for geology is pumped water experimental, includes sleeve pipe (1) and sealing-up ware (2), offer on the pipe wall of sleeve pipe (1) and supply grout to flow through and cross thick liquid hole (11), sealing-up ware (2) are including slip casting pipe (21), slip casting pipe (21) are located sleeve pipe (1), its characterized in that: the utility model discloses a water stop device, including slip casting pipe (21), grout spraying hole (211) have been seted up on the pipe wall of slip casting pipe (21), on the outer wall of slip casting pipe (21) and be located the other water conservancy diversion gasbag (24) that is equipped with in drill way of slip casting hole (211), stagnant water ware (2) are including gas tube (26), gas tube (26) are used for aerifing in water conservancy diversion gasbag (24), the one end and sleeve pipe (1) inner wall butt of slip casting pipe (21) are kept away from in water conservancy diversion gasbag (24), cross grout hole (11) and grout spraying hole (211) and be located same space that is formed by water conservancy diversion gasbag (24).
2. The water stopping device for geological water pumping test according to claim 1, characterized in that: the grouting pipe (21) is internally provided with a check valve (23), the check valve (23) comprises a check spring (231) and a valve plate (232), one end of the check spring (231) is fixedly connected with the inner end face of the grouting pipe (21), the other end of the check spring is fixedly connected with the valve plate (232), and the grout spraying hole (211) is located on one side, facing the check spring (231), of the valve plate (232) when the check spring (231) is in a natural state.
3. The water stopping device for geological water pumping test according to claim 2, characterized in that: the diversion air bag (24) comprises a supporting air bag (242) and a top cover air bag (241), the supporting air bag (242) is positioned on one side of the guniting hole (211) close to the bottom of the well, and the top cover air bag (241) is positioned on one side of the guniting hole (211) far away from the bottom of the well;
the grouting device is characterized by further comprising a supporting mechanism (3), wherein the supporting mechanism (3) comprises a bottom supporting rod (34), the bottom supporting rod (34) is connected to the end portion, facing the bottom of the well, of the grouting pipe (21), and the bottom supporting rod (34) is abutted to one side, away from cement slurry, of the supporting air bag (242).
4. The water stopping device for geological water pumping test according to claim 3, characterized in that: the water seal device is characterized in that one side, facing the well bottom, of the grouting pipe (21) is coaxially and fixedly connected with a mounting portion (212), the bottom supporting rod (34) is hinged with a port, facing the well bottom, of the mounting portion (212), the axis of the grouting pipe (21) is located on a rotating plane of the bottom supporting rod (34), and the water seal device (2) further comprises a control assembly (35) used for controlling the bottom supporting rod (34) to rotate.
5. The water stopping device for geological water pumping test according to claim 4, characterized in that: the control assembly (35) comprises a transmission rod (351) and a butting plate (352), one end of the transmission rod (351) is fixedly connected with one side, facing the non-return spring (231), of the valve plate (232), the other end of the transmission rod is fixedly connected with the butting plate (352), the butting plate (352) is located in the mounting portion (212), one end of the bottom supporting rod (34) is connected with one side, facing away from the transmission rod (351), of the butting plate (352) in a sliding mode, and the sliding direction is the radial direction of the butting plate (352).
6. The water stopping device for geological water pumping test according to claim 3, characterized in that: the supporting mechanism (3) further comprises a pressing disc (33), and the pressing disc (33) is fixedly connected to the grouting pipe (21) and is abutted to one side, deviating from cement slurry, of the top cover air bag (241).
7. The water stopping device for geological water pumping test according to claim 3, characterized in that: roof gasbag (241) just are close to sleeve pipe (1) place fixedly connected with shutoff gasbag (25) towards the one side of supporting gasbag (242), gas tube (26) are including mutually independent support trachea (262), roof trachea (261) and shutoff trachea (263), support trachea (262) and support gasbag (242) intercommunication, shutoff trachea (263) and shutoff gasbag (25) intercommunication, roof trachea (261) and roof gasbag (241) intercommunication.
8. The water stopping device for geological water pumping test according to claim 7, characterized in that: the top cover air bag (241) is fixedly connected with a placing net bag (2411) used for containing the plugging air bag (25), and the placing net bag (2411) is made of a rubber band.
9. The water stopping device for geological water pumping test according to claim 7, characterized in that: the supporting mechanism (3) further comprises a top cover oblique table (31) and a supporting oblique table (32), the top cover oblique table (31) and the supporting oblique table (32) are fixedly connected with the inner wall of the sleeve (1), the slurry passing hole (11) is located between the top cover oblique table (31) and the supporting oblique table (32), the top cover oblique table (31) and the top cover air bag (241) are abutted to one side of deviating from the blocking air bag (25), and the supporting oblique table (32) and the blocking air bag (25) are abutted to the end portion of keeping away from the top cover air bag (241).
10. A use method of water stopping equipment for geological water pumping tests is characterized by comprising the following steps: the method sequentially comprises the following steps:
s1: after drilling, inserting the casing (1) and the water stopper (2) into a well;
s2: inflating the top cover airbag (241) and the support airbag (242) through the inflation tube (26) to expand;
s3: cement slurry is injected into the water stopper (2) through a grouting pipe (21);
s4: stopping grouting after sufficient cement is filled between the casing (1) and the well wall, and standing;
s5: the gas in the supporting air bag (242) is discharged through the supporting air pipe (262), and the plugging air bag (25) is inflated through the plugging air pipe (263) to be expanded;
s6: and when the cement between the sleeve (1) and the well wall is completely solidified, the gas in the plugging air bag (25) and the top cover air bag (241) is discharged, and the water stopper (2) is taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111564358.3A CN114278252B (en) | 2021-12-20 | 2021-12-20 | Water stopping equipment for geological water pumping test and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111564358.3A CN114278252B (en) | 2021-12-20 | 2021-12-20 | Water stopping equipment for geological water pumping test and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114278252A true CN114278252A (en) | 2022-04-05 |
| CN114278252B CN114278252B (en) | 2023-06-20 |
Family
ID=80873246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111564358.3A Active CN114278252B (en) | 2021-12-20 | 2021-12-20 | Water stopping equipment for geological water pumping test and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114278252B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6286603B1 (en) * | 1999-02-04 | 2001-09-11 | Solinst Canada Limited | Packing system and method for boreholes |
| US20090032257A1 (en) * | 2005-02-10 | 2009-02-05 | Christophe Rayssiguier | Method and Apparatus for Consolidating a Wellbore |
| US20120043074A1 (en) * | 2010-08-05 | 2012-02-23 | Webb Jr John Karl | High pressure oil pipe bullet plug |
| CN108468528A (en) * | 2018-05-18 | 2018-08-31 | 河北省地矿局国土资源勘查中心 | Fourth-series deep well layered water pumping and stopping device and water pumping and stopping method thereof |
| CN108842779A (en) * | 2018-08-16 | 2018-11-20 | 天津核海源科技发展有限公司 | A kind of underground backwater structure sealing grouting stick |
| CN108979531A (en) * | 2018-07-23 | 2018-12-11 | 西安科技大学 | A kind of foam concrete grouting system and method for the prevention and treatment of mine collapse hole |
| CN110984900A (en) * | 2019-12-09 | 2020-04-10 | 北京慧坤科技有限公司 | Device and method for stopping water in drilling |
| CN213204131U (en) * | 2020-08-27 | 2021-05-14 | 深圳华力岩土工程有限公司 | Sleeve valve pipe slip casting rifle head |
| CN113029693A (en) * | 2021-03-23 | 2021-06-25 | 解飞 | Underground water layered sampling device and using method thereof |
| CN113236181A (en) * | 2021-06-09 | 2021-08-10 | 中煤地质集团有限公司 | Water stopping device for water pumping test of exploration well |
| CN113236180A (en) * | 2021-05-27 | 2021-08-10 | 杭州市勘测设计研究院有限公司 | Geological exploration hole plugging method |
| CN214836251U (en) * | 2021-05-13 | 2021-11-23 | 重庆工程职业技术学院 | Hole plugging device |
| CN215057248U (en) * | 2021-07-28 | 2021-12-07 | 山东省地质矿产勘查开发局第六地质大队(山东省第六地质矿产勘查院) | Layering water stop device is used in hydrogeology probing |
-
2021
- 2021-12-20 CN CN202111564358.3A patent/CN114278252B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6286603B1 (en) * | 1999-02-04 | 2001-09-11 | Solinst Canada Limited | Packing system and method for boreholes |
| US20090032257A1 (en) * | 2005-02-10 | 2009-02-05 | Christophe Rayssiguier | Method and Apparatus for Consolidating a Wellbore |
| US20120043074A1 (en) * | 2010-08-05 | 2012-02-23 | Webb Jr John Karl | High pressure oil pipe bullet plug |
| CN108468528A (en) * | 2018-05-18 | 2018-08-31 | 河北省地矿局国土资源勘查中心 | Fourth-series deep well layered water pumping and stopping device and water pumping and stopping method thereof |
| CN108979531A (en) * | 2018-07-23 | 2018-12-11 | 西安科技大学 | A kind of foam concrete grouting system and method for the prevention and treatment of mine collapse hole |
| CN108842779A (en) * | 2018-08-16 | 2018-11-20 | 天津核海源科技发展有限公司 | A kind of underground backwater structure sealing grouting stick |
| CN110984900A (en) * | 2019-12-09 | 2020-04-10 | 北京慧坤科技有限公司 | Device and method for stopping water in drilling |
| CN213204131U (en) * | 2020-08-27 | 2021-05-14 | 深圳华力岩土工程有限公司 | Sleeve valve pipe slip casting rifle head |
| CN113029693A (en) * | 2021-03-23 | 2021-06-25 | 解飞 | Underground water layered sampling device and using method thereof |
| CN214836251U (en) * | 2021-05-13 | 2021-11-23 | 重庆工程职业技术学院 | Hole plugging device |
| CN113236180A (en) * | 2021-05-27 | 2021-08-10 | 杭州市勘测设计研究院有限公司 | Geological exploration hole plugging method |
| CN113236181A (en) * | 2021-06-09 | 2021-08-10 | 中煤地质集团有限公司 | Water stopping device for water pumping test of exploration well |
| CN215057248U (en) * | 2021-07-28 | 2021-12-07 | 山东省地质矿产勘查开发局第六地质大队(山东省第六地质矿产勘查院) | Layering water stop device is used in hydrogeology probing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114278252B (en) | 2023-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101395339A (en) | Method and apparatus to cement a perforated casing | |
| CN104254666B (en) | A kind of shale gas operational method | |
| CN107654206B (en) | Drilling water stopping device and water stopping method | |
| CN110984900A (en) | Device and method for stopping water in drilling | |
| CN113250200B (en) | Novel environmental protection fibre cement layering slip casting device | |
| CN109915068B (en) | Automatic water-absorbing plugging and hole-sealing device and method for near-horizontal coal seam gas extraction drill hole | |
| CN104863542B (en) | A kind of method that nearly horizontal firedamp taking-out discharging drilling drilling cuttings combines sealing of hole with pouch | |
| CN211824858U (en) | Shield constructs around originating/arrival section tunnel stratum water and soil pressure monitoring devices | |
| US3493045A (en) | Fluid pressurized shothole plug and water control device | |
| CN105715230A (en) | Middle slurry-permeating type single-bag grouting hole sealing device and hole sealing method thereof | |
| CN111322107A (en) | Secondary grouting plugging device in drilling | |
| CN201637650U (en) | Drilling water pressure test/grouting equipment | |
| CN106460477A (en) | Downhole stimulation system | |
| CN111636879A (en) | Inflatable bag structure for deviation correction of displacement of operation subway tunnel and construction method | |
| CN107420100B (en) | Layered water pumping device and layered water pumping system | |
| CN104121013B (en) | For the water detection device of horizontal well and use its method determining water exit position | |
| CN110295879A (en) | A kind of staged fracturing horizontal well in segments period note adopts dual string | |
| CN106769215A (en) | A kind of device and method for fetching water for continuously acquiring drilling water sample in situ | |
| CN114278252A (en) | Water stopping equipment for geological water pumping test and use method | |
| CN109138904A (en) | Twin packer delamination pour slurry antipriming and its application method | |
| CN2139953Y (en) | Forced water testing device for engineering geological prospecting | |
| CN111764959A (en) | Gas-liquid linkage high-concentration slurry grouting device and method for deep water-rich goaf | |
| JP2006132301A (en) | Ground injector | |
| CN215804475U (en) | Sleeve valve pipe slip casting component and be used for hole sealing subassembly of rich water karst | |
| CN111877303B (en) | Orifice pipe sealing device, grouting device and grouting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |