CN111173474A - Water stopping device for layered water pumping test, water pumping test device and test method - Google Patents
Water stopping device for layered water pumping test, water pumping test device and test method Download PDFInfo
- Publication number
- CN111173474A CN111173474A CN202010033224.8A CN202010033224A CN111173474A CN 111173474 A CN111173474 A CN 111173474A CN 202010033224 A CN202010033224 A CN 202010033224A CN 111173474 A CN111173474 A CN 111173474A
- Authority
- CN
- China
- Prior art keywords
- water
- pipe
- level monitoring
- water level
- water outlet
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 617
- 238000012360 testing method Methods 0.000 title claims abstract description 129
- 238000005086 pumping Methods 0.000 title claims abstract description 119
- 238000010998 test method Methods 0.000 title claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims description 100
- 229910000831 Steel Inorganic materials 0.000 claims description 72
- 239000010959 steel Substances 0.000 claims description 72
- 238000001514 detection method Methods 0.000 claims description 40
- 238000005553 drilling Methods 0.000 claims description 27
- 238000013461 design Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 14
- 238000012806 monitoring device Methods 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 9
- 239000003673 groundwater Substances 0.000 claims description 6
- 239000004576 sand Substances 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 16
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 10
- 230000009467 reduction Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 239000002390 adhesive tape Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000008093 supporting effect Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B33/12—Packers; Plugs
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/14—Obtaining from a multiple-zone well
Abstract
The invention relates to a water stopping device for a layered water pumping test, a water pumping test device and a test method, wherein the water stopping device comprises: the body is vertically arranged; the rubber air bag is sleeved on the outer wall of the body; the air pressure pipe is positioned in the body, one end of the air pressure pipe extends out of the top end of the body and is provided with an air pressure interface, the other end of the air pressure pipe is provided with an air outlet, and the air outlet is communicated with the rubber air bag; the water outlet pipe is vertically arranged, the lower end of the water outlet pipe is a water inlet connector, the lower end of the water outlet pipe penetrates through the body, and the upper end of the water outlet pipe is a water outlet connector. The water stopping device greatly overcomes the ventilation phenomenon caused by expansion and contraction of the water stopping rubber air bag water stopping device on the market at the present stage, cannot influence the stability of the well wall of the sand pebble layer, can be repeatedly used, and reduces the engineering cost.
Description
Technical Field
The invention belongs to the technical field of engineering geological investigation, and particularly relates to a water stopping device for a layered water pumping test, a water pumping test device and a test method.
Background
The water stopping in the layered water pumping test is an important work in the field of engineering geological exploration, and the accuracy of the whole water pumping test can be directly influenced by the quality of the water stopping effect.
In the actual operation of engineering, traditional water pumping test sealing device generally comprises both ends rigid joint and middle rubber gasbag, goes out water interface and trachea interface and directly lets in the rubber gasbag, and gasbag can take place to expand to the wall of a well under the atmospheric pressure effect when carrying out the stagnant water operation, but the inflation process of gasbag does not rely on the horizontal elastic deformation of rubber completely and arouses, and still need rely on the rubber gasbag to follow the effect that the pipe wall vertically contracts the deformation, therefore rubber sealing device can take place great shrink than former no atmospheric pressure state. Although the water outlet interface, the air pressure interface and the water level gauge monitoring interface are arranged in a sealing manner, the rubber air bag still generates air leakage under high air pressure, and meanwhile, when the rubber air bag generates large shrinkage deformation on a well wall, a loose pebble layer or a gravel layer can be driven to move, so that the well wall is collapsed and a hole collapses, and unnecessary troubles are brought to a water pumping test and subsequent work. Meanwhile, due to the shrinkage and air leakage phenomena of the rubber air bag, when the air pressure in the air bag is low, the effective water stopping distance of the rubber air bag is greatly shortened, and when the underground water pressure is high, the phenomenon that the underground water gushes to a water pumping experimental layer can occur, so that the data accuracy of a layered water pumping test is influenced.
Disclosure of Invention
The invention provides a water stopping device for a layered water pumping test, a water pumping test device and a test method, aiming at solving the technical problems.
The technical scheme for solving the technical problems is as follows: a water stop device for a stratified pumping test, comprising:
the body is vertically arranged;
the rubber air bag is sleeved on the outer wall of the body;
the air pressure pipe is positioned in the body, one end of the air pressure pipe extends out of the top end of the body to form an air pressure interface, the other end of the air pressure pipe is an air outlet, and the air outlet is communicated with the rubber air bag;
the water outlet pipe is vertically arranged, the lower end of the water outlet pipe is a water inlet connector, the lower end of the water outlet pipe penetrates through the body, and the upper end of the water outlet pipe is a water outlet connector.
The invention has the beneficial effects that: (1) the water outlet pipe and the air pressure pipe in the device are connected with the body, so that the problem of air leakage at the joint of the air bag of the traditional water stopping device can be effectively avoided;
(2) the phenomenon that the rubber air bag expands more and the rubber air bag contracts more seriously when the traditional water stopping device is used at a larger borehole diameter is avoided; the device can adapt to larger borehole diameter change, and greatly meets the requirements of engineering multi-borehole diameter tests;
(3) due to the supporting effect of the body, when the rubber air bag receives high-pressure gas, the rubber air bag cannot shrink and deform in the vertical direction, so that the stability of the well wall can be greatly protected, and particularly, when a water pumping experiment is carried out on a sand gravel layer or a gravel layer, the hole collapse phenomenon is avoided;
(4) the device can be repeatedly installed and used, so that the cost is saved, and the environment is protected;
(5) this device simple operation is high-efficient.
On the basis of the technical scheme, the invention can be further improved as follows.
The water level monitoring device is characterized by further comprising a water level monitoring pipe, wherein the water level monitoring pipe is vertically arranged, the lower end of the water level monitoring pipe penetrates through the body, the lower end of the water level monitoring pipe is a second water level monitoring interface, and the upper end of the water level monitoring pipe is a first water level monitoring interface.
The beneficial effect of adopting the further scheme is that: can be through the water level condition after the water level monitoring pipe monitoring draws water, do benefit to further to draw water the experiment.
Further, the body includes the main part steel pipe of vertical setting, first steel joint and second steel joint, first steel joint with the upper end threaded connection of main part steel pipe, the second steel joint with the lower extreme threaded connection of main part steel pipe, first steel joint with form between the second steel joint and place the recess, the rubber air bag is arranged in placing in the recess to the cover is established on the outer wall of main part steel pipe.
The beneficial effect of adopting the further scheme is that: through the recess of placing that first steel joint and second steel joint formed, can place the rubber gasbag, form the limiting action to the rubber gasbag through first steel joint and second steel joint, more be favorable to avoiding the shrink of the vertical top of rubber gasbag.
Further, be equipped with first water level monitoring preformed hole, play water preformed hole and first atmospheric pressure preformed hole on the first steel joint, be equipped with second water level monitoring preformed hole and intake preformed hole on the second steel joint, the lower extreme warp of water level monitoring pipe first water level monitoring preformed hole with second water level monitoring preformed hole passes the main part steel pipe, the lower extreme warp of outlet pipe play water preformed hole with the intake preformed hole passes the main part steel pipe.
The beneficial effect of adopting the further scheme is that: the water level monitoring pipe, the air pressure pipe and the water outlet pipe are connected with the body.
Further, the first water level monitoring preformed hole, the water outlet preformed hole, the first air pressure preformed hole, the second water level monitoring preformed hole and the water inlet preformed hole are internally provided with sealing rubber cushions.
The beneficial effect of adopting the further scheme is that: the sealing rubber pad avoids water leakage from the joint gap and influences on the sealing effect of water stop. Meanwhile, the water level monitoring pipe, the air pressure pipe and the water outlet pipe penetrate through the main steel pipe through the reserved holes, so that the connection between the water level monitoring pipe and the rubber air bag can be avoided, and the air leakage of a gap between the rubber air bag and the connection part of the rubber air bag is avoided.
Further, a water level monitoring valve for opening or closing the water level monitoring pipe is arranged at the second water level monitoring interface.
The beneficial effect of adopting the further scheme is that: the second water level monitoring interface can be closed or opened through the water level monitoring valve, and the application range is wider.
Furthermore, a water outlet water stop valve for opening or closing the water outlet pipe is arranged at the water outlet interface.
The beneficial effect of adopting the further scheme is that: the water outlet port can be conveniently opened or closed through the water outlet stop valve, so that the water stop device can be suitable for water pumping on the upper part or water pumping on the lower part, the application range is wider, and the water stop effect is better.
The invention also provides a water pumping test device which comprises the water stopping device for the layered water pumping test, and the water pumping test device also comprises a submersible pump, wherein one end of the submersible pump is connected with the water outlet interface or the water inlet interface.
The water pumping test device has the beneficial effects that: the water pumping test can be carried out very simply and efficiently, and the test accuracy is high.
The invention also provides a test method adopting the water pumping test device, which comprises the following steps:
s1, drilling according to design requirements, and obtaining a test well after well washing;
s2, connecting the bottom end of a submersible pump with a water outlet interface on the water stopping device, taking out a water drill rod, and connecting one end of the water drill rod with the output end of the top end of the submersible pump in a threaded manner to obtain a water pumping test device;
s2, closing a water level monitoring valve and a water outlet and water stop valve on the water stop device;
s3, a water taking level detection connecting pipe, wherein one end of the water level detection connecting pipe is connected with the first water level monitoring interface, and a water taking level monitor is placed in a water pumping position through the water level detection connecting pipe;
s4, taking a pressure connecting pipe, wherein one end of the pressure connecting pipe is connected with a pressure connecting port on the water stopping device;
s5, the water pumping test device is placed into a test well through a water outlet drill rod and is stopped until a designed detection position is reached, so that the other end of the water level detection connecting pipe, the other end of the water outlet drill rod and the other end of the air pressure connecting pipe are placed outside the test well, the other end of the air pressure connecting pipe is connected with an air compressor, and the other end of the water outlet drill rod is connected with a ground water amount monitoring device;
s6, starting an air compressor, injecting gas into the rubber air bag through the air pressure connecting pipe, expanding the rubber air bag after the gas is filled into the rubber air bag, closely contacting with the inner side wall of the test well, closing the air compressor, maintaining the pressure, and realizing sealing and water stopping;
and S7, starting the submersible pump, pumping the upper water source by the submersible pump, outputting the upper water source to the test well through the water outlet drill rod, collecting water discharged from the other end of the water outlet drill rod, and taking out the water pumping test device to finish the water pumping test.
The test method has the beneficial effects that: the upper space can be pumped, the operation of the pumping test is convenient and simple, and the accuracy after the test is high.
The invention also provides a test method adopting the water pumping test device, which comprises the following steps:
s1, drilling according to design requirements, and obtaining a test well after well washing;
s2, connecting the output end of the top end of the submersible pump with a water inlet interface on the water stopping device, taking out a water drill rod, and connecting one end of the water drill rod with a water outlet interface of the water stopping device in a threaded manner to obtain a water pumping test device;
s2, opening a water level monitoring valve and a water outlet and water stop valve on the water stop device;
s3, a water taking level detection connecting pipe, wherein one end of the water level detection connecting pipe is connected with the second water level monitoring interface, and a water taking level detector is placed in a water pumping position through the water level detection connecting pipe;
s4, taking a pressure connecting pipe, wherein one end of the pressure connecting pipe is connected with a pressure connecting port on the water stopping device;
s5, the water pumping test device is placed into a test well through a water outlet drill rod and is stopped until a designed detection position is reached, so that the other end of the water outlet drill rod and the other end of the air pressure connecting pipe are placed outside the test well, the other end of the air pressure connecting pipe is connected with an air compressor, and the other end of the water outlet drill rod is connected with a ground water amount monitoring device;
s6, starting an air compressor, injecting gas into the rubber air bag through the air pressure connecting pipe, expanding the rubber air bag after the gas is filled into the rubber air bag, closely contacting with the inner side wall of the test well, closing the air compressor, maintaining the pressure, and realizing sealing and water stopping;
and S7, starting the submersible pump, pumping the upper water source by the submersible pump, outputting the upper water source to the test well through the water outlet drill rod, collecting water discharged from the other end of the water outlet drill rod, and taking out the water pumping test device to finish the water pumping test.
The test method has the beneficial effects that: the water pumping in the lower space can be carried out, the water pumping test is convenient and simple to operate, and the accuracy after the test is high.
Drawings
FIG. 1 is a front view of the water stopping device of the present invention;
FIG. 2 is a sectional view of the water stopping device of the present invention;
FIG. 3 is a top view of the water stopping device of the present invention;
FIG. 4 is a state diagram of the use of embodiment 1 of the present invention;
fig. 5 is a usage state diagram of embodiment 2 of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a first water level monitoring interface; 2. a water outlet interface; 3. a water outlet and water stop valve; 4. an air pressure interface; 5. A first steel joint; 6. a rubber air bag; 7. an air outlet; 8. a main steel pipe; 9. a second steel joint; 10. A water inlet interface; 11. a water level monitoring valve; 12. a second water level monitoring interface; 13. a water level monitoring pipe; 14. a water outlet pipe; 15. a pneumatic tube; 16. a first water level monitoring preformed hole; 17. a water outlet reserved hole is formed; 18. A first air pressure preformed hole; 19. a water outlet drill rod; 20. an air pressure connecting pipe; 21. a water inlet of the water pump; 22. A test well; 23. installing a connecting pipe; 24. a water stopping device; 25. a submersible pump; 26. a water level detection connection pipe; 28. a second water level monitoring preformed hole; 29. and a hole is reserved for water inlet.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1 to 3, a water stopping device 24 for a stratified water pumping test includes: the body, the rubber air bag 6, the pneumatic tube 15 and the water outlet pipe 14.
The vertical setting of body, wherein the body is used for supporting the rubber leather bag, appears the condition of dwindling in the twinkling of an eye when avoiding the rubber leather bag shrink. The rubber air bag 6 is sleeved on the outer wall of the body, wherein the rubber air bag 6 is annular. The pneumatic tube 15 is located this internal, and the top that the body was stretched out to the one end of pneumatic tube 15 is atmospheric pressure interface 4, and the other end of pneumatic tube 15 is gas outlet 7, and gas outlet 7 and rubber gasbag 6 intercommunication, wherein the other end of pneumatic tube 15 is equipped with two gas outlets 7 that branch, and two gas outlets 7 pass body and rubber gasbag 6 intercommunication to communicate through atmospheric pressure interface 4 and outside air compressor machine equipment, thereby inject high-pressure gas into rubber gasbag 6, rubber gasbag 6 receives and produces the inflation after the high-pressure gas, thereby realizes the effect of sealed stagnant water. The water outlet pipe 14 is vertically arranged, the lower end of the water outlet pipe 14 is a water inlet connector 10, the lower end of the water outlet pipe 14 penetrates through the body, the upper end of the water outlet pipe 14 is a water outlet connector 2, and water can conveniently penetrate through the water stopping device 24 when a water pumping test is carried out through the water outlet pipe 14, so that various water stopping and water pumping functions can be realized. This water stop device 24 is because having the body to support rubber gasbag 6, consequently only need pour into less high-pressure gas into, and the supporting effect of body has overcome the phenomenon that rubber gasbag 6 contracts and produce gas leakage simultaneously, only need once only with high-pressure gas pour into rubber gasbag 6 within can, reduce the demand of air compressor reuse repeatedly.
Simultaneously because the supporting role of body, when rubber gasbag 6 received high-pressure gas, can not produce the shrink deformation of vertical direction, consequently can protect the stability of the wall of a well greatly, especially when drawing water the experiment at sand gravel layer or gravel layer, can produce half more than vertical shrink distance when ordinary watertight fittings 24 inflation, especially when high-pressure gas acts on, the shrink that rubber gasbag 6 produced must can exert an influence to the wall of a well stability, the hole phenomenon of collapsing appears even, and this watertight fittings 24 can not produce this problem.
Preferably, in this embodiment, still include water level monitoring pipe 13, water level monitoring pipe 13 is vertical to be set up, and the lower extreme of water level monitoring pipe 13 passes the body, and the lower extreme of water level monitoring pipe 13 is second water level monitoring interface 12, and the upper end of water level monitoring pipe 13 is first water level monitoring interface 1, can make things convenient for water level detector to pass this sealing device 24 through water level monitoring pipe 13, enters into the position of drawing water, can effectively monitor the real-time water level change of drawing water. Wherein the water level detecting tube can be a common PVC plastic tube.
Preferably, in this embodiment, the body comprises a main steel pipe 8, a first steel joint 5 and a second steel joint 9, the main steel pipe 8 is vertically arranged, the first steel joint 5 is disc-shaped, the first steel joint 5 is horizontally arranged, the lower surface of the first steel joint 5 is provided with a connecting groove, the connecting groove is internally provided with screw threads, the upper end of the main steel pipe 8 is provided with screw threads, so that the first steel joint 5 is in screw thread connection with the upper end of the main steel pipe 8, the first steel joint 5 seals the upper end of the main steel pipe 8, the second steel joint 9 is in screw thread connection with the lower end of the main steel pipe 8, the second steel joint 9 is disc-shaped, the second steel joint 9 is horizontally arranged, the upper surface of the second steel joint 9 is provided with a connecting groove, the connecting groove is internally provided with screw threads, the lower end of the main steel pipe 8 is provided with screw threads, thereby the second steel connects 9 and main part steel pipe 8's lower extreme threaded connection, wherein the second steel connects 9 and seals main part steel pipe 8's lower extreme, wherein first steel connects 5 and second steel and connects 9 the size to be greater than main part steel pipe 8's size, thereby form between first steel connects 5 and the second steel connects 9 and place the recess, rubber gasbag 6 is arranged in and is placed the recess, and the cover is established on main part steel pipe 8's outer wall, can form limiting action fixed action to rubber gasbag 6 through first steel connects 5 and second steel connects 9 simultaneously, more be favorable to avoiding the shrink of rubber gasbag 6 vertical top.
Preferably, in this embodiment, the first steel joint 5 is provided with a first water level monitoring preformed hole 16, a water outlet preformed hole 17 and a first air pressure preformed hole 18, the second steel joint 9 is provided with a second water level monitoring preformed hole 28 and a water inlet preformed hole 29, the lower end of the water level monitoring pipe 13 passes through the main steel pipe 8 through the first water level monitoring preformed hole 16 and the second water level monitoring preformed hole 28, and the lower end of the water outlet pipe 14 passes through the main steel pipe 8 through the water outlet preformed hole 17 and the water inlet preformed hole 29.
Preferably, all be equipped with sealed cushion in first water level monitoring preformed hole 16, play water preformed hole 17, first atmospheric pressure preformed hole 18, second water level monitoring preformed hole 28 and the preformed hole 29 of intaking, avoid water to leak from the joint gap through sealed cushion, avoid influencing the sealed effect of stagnant water. The water level monitoring pipe 13, the air pressure pipe 15 and the water outlet pipe 14 penetrate through the main steel pipe 8 through the reserved holes, so that the connection between the water level monitoring pipe and the rubber air bag 6 can be avoided, and the air leakage of a gap between the rubber air bag 6 and the connection part can be avoided.
Preferably, in this embodiment, a water level monitoring valve 11 for opening or closing the water level monitoring pipe 13 is disposed at the second water level monitoring interface 12. The second water level monitoring port 12 can be closed or opened by the water level monitoring valve 11.
The water outlet interface 2 is provided with a water outlet and stop valve 3 for opening or closing the water outlet pipe 14. The water outlet interface 2 can be conveniently opened or closed through the water outlet stop valve, so that the water stopping device 24 can be suitable for water pumping at the upper part or water pumping at the lower part, the application range is wider, and the water stopping effect is better.
In addition, this embodiment still provides a pumping test device, includes like above-mentioned stagnant water device 24 that is used for the layering pumping test, and pumping test device still includes immersible pump 25, and the bottom and the interface 2 connection of going out of water of immersible pump 25. The water level monitoring device is characterized by further comprising a water level monitoring connecting pipe, an air pressure connecting pipe 20 and a water outlet drill rod 19, wherein the water level monitoring connecting pipe is vertically arranged, the lower end of the water level monitoring connecting pipe is connected with the first water level monitoring interface 1, evenly-spaced drilling holes are formed in the water level monitoring connecting pipe, and water can enter the water level monitoring connecting pipe conveniently through the drilling holes. Wherein the height of the bore hole is 8 m. Wherein the pneumatic connecting pipe 20 is connected with the pneumatic interface 4 for gas transmission. Wherein the inside of the water outlet drill rod 19 is hollow, and water can flow through. Wherein the submersible pump 25 and the water outlet drill pipe 19 are prior art and are known to those skilled in the art. Wherein the lower end of the submersible pump 25 is a water pump inlet 21.
As shown in fig. 4, the test method of the water pumping test device adopted in this embodiment mainly pumps water in the upper space, and includes the following steps:
and S1, drilling according to design requirements, and after drilling is completed, washing the well by high-pressure circulating water until the returned water is clear, and then completing well washing to obtain the test well 22.
S2, installing the water stopping device 24, connecting the bottom end of the submersible pump 25 with the water outlet interface 2 on the water stopping device 24 through the installation connecting pipe 23, wherein one end of the installation connecting pipe 23 is connected with the bottom end of the submersible pump 25, the other end of the installation connecting pipe 23 is connected with the water outlet interface 2, so that the water stopping device 24 is connected with the submersible pump 25, the water stopping device 24 is located vertically below the submersible pump 25, the water drill rod 19 is taken out, one end of the water drill rod 19 is in threaded connection with the top end output end of the submersible pump 25, and the water pumping test device is obtained. The submersible pump 25 and water stop 24 can be easily lowered into the test well 22 via the drill pipe 19.
And S2, closing the water level monitoring valve 11 and the water outlet and water stop valve 3 on the water stop device 24.
S3, a water level detection connecting pipe 26, wherein one end of the water level detection connecting pipe 26 is connected with the first water level monitoring interface 1, and a water level monitor is placed in the water level detection connecting pipe 26 and is placed in a water pumping position. The water level monitor can monitor the water level change condition of pumping water.
And S4, taking the air pressure to connect the pipe 20, wherein one end of the air pressure connecting pipe 20 is connected with the air pressure connection port 4 on the water stopping device 24.
S5, the water pumping test device drives the water outlet drill rod 19 to be placed into the test well 22 step by step through a drilling machine, the water level detection connecting pipe 26, the air pressure connecting pipe 20 and the water outlet drill rod 19 are bound by using an adhesive tape at intervals in the placing process and are stopped until the designed detection position is reached, the other end of the water level detection connecting pipe 26, the other end of the water outlet drill rod 19 and the other end of the air pressure connecting pipe 20 are placed outside the test well 22, the other end of the air pressure connecting pipe 20 is connected with an air compressor, so that the rubber air bag 6 can be filled with air, the other end of the water outlet drill rod 19 is connected with a ground water quantity monitoring device, the flow of pumped water is detected through the water quantity monitoring.
And S6, starting the air compressor, injecting gas into the rubber air bag 6 through the air pressure connecting pipe 20, inflating the rubber air bag 6 after the gas is injected, contacting with the inner side wall of the test well 22, closing the air compressor, maintaining the pressure, and achieving sealing and water stopping. And observing the water stopping effect.
And S7, starting the submersible pump 25, pumping the upper water source by the submersible pump 25, outputting the upper water source to the test well 22 through the water outlet drill rod 19, collecting water discharged from the other end of the water outlet drill rod 19, and taking out the water pumping test device to finish the water pumping test.
The following is explained by practical operation:
the hole depth of a certain exploration engineering drilling design is 100m, the aperture is 108mm, a water pumping test needs to be set at a section of 0m-30m according to design requirements, the water pumping test is divided into three times of depth reduction, which are 22m, 26m and 30m respectively, the design diameter of a water stop device 24 is 90mm, the length of the water stop device 24 is 2m, the length of a water outlet interface 2 at the upper end of the water stop device 24 is 100mm, the length of a water outlet interface at the output end of the upper end of a water pump is 100mm, the length of an interface at the lower end of the water pump is 100mm, the length from a water inlet 21 of the water pump to the bottom surface of the water pump is 300mm, an installation:
1. and (3) stopping the drilling operation when the hole depth reaches about 35m, washing the hole by adopting high-pressure circulating water after the drilling is finished until the returned water is clear, and preparing to install a water pumping test device.
2. According to the requirement of a pumping test, a water outlet drill rod 19 of about 30m, an air pressure connecting pipe 20 and a water level detection connecting pipe 26 of a PVC pipe of about 30m are prepared.
3. And (3) drilling a plurality of uniformly spaced holes by using an electric drill in a range of 8m above the bottom end of the water level monitoring pipe 13 by enabling the vertical height of the PVC pipe water level detection connecting pipe 26 to be close to the water stopping device 24.
4. The water level monitoring valve 11 and the water outlet and stop valve 3 of the water stop device 24 are closed first.
5. The water outlet port 2 of the water stopping device 24 is in threaded connection with the bottom end of the submersible pump 25 through the mounting connecting pipe 23.
6. The maximum water pumping depth is 30m according to the design requirement, so that the final lowering position of the water stopping device 24 is 32.5 m.
7. The water level detection connection pipe 26 is connected to the first water level monitoring interface 1 of the water stop device 24, and the air pressure connection pipe 20 is connected to the air pressure interface 4 of the water stop device 24.
7. The output end of the top of the submersible pump 25 is in threaded connection with the water outlet drill rod 19 and is lowered into the drill hole step by the aid of a drilling machine. And in the lowering process, the water level detection connecting pipe 26 and the air pressure connecting pipe 20 are bound with the water outlet drill rod 19 at intervals by adopting an adhesive tape.
8. After the water stop device 24 and the submersible pump 25 are placed to the designed positions, the other end of the air pressure connecting pipe 20 is connected with the air compressor, and the flow monitoring device is arranged.
9. The air compressor is started to inject high-pressure gas into the water stopping device 24, and the air compressor is closed and the water stopping effect is checked after the water stopping effect is achieved.
10. And after the water stopping effect is qualified, the pre-pumping operation of the pumping test is started, and whether the design pumping test requirements can be met or not is observed.
11. And (3) carrying out a first-stage depth reduction test, firstly reducing the water level to about 29m by using the submersible pump 25, and slowly adjusting the water outlet control device along with the water pumping process to ensure that the depth is reduced to 30m after the water level is stable.
12. And (5) performing a second-stage depth reduction test, raising the water level to about 27m by reducing the water yield or adjusting a water return valve, and slowly adjusting a water outlet control device along with the water pumping process to reduce the water level to 26m after the water level is stabilized.
13. And (4) carrying out a third-stage depth reduction test, raising the water level to about 23m by reducing the water yield or adjusting a water return valve, and slowly adjusting a water outlet control device along with the water pumping process to enable the water level to be reduced to 22m after being stabilized.
14. After the water pumping test is finished, the air pressure connecting pipe 20 at the air compressor at the ground end is removed, and the air in the rubber air bag 6 is released.
15. And the water outlet drill rod 19, the air pressure connecting pipe 20, the water level detection connecting pipe 26, the water stopping device 24 and the submersible pump 25 are taken out step by using a drilling machine.
16. And carrying out the next stage of drilling operation.
Example 2
The structure of the water stopping device 24 adopted in this embodiment is the same as that of embodiment 1, except that this embodiment provides a water pumping test device, which includes the water stopping device 24 for the stratified water pumping test as described above, and the water pumping test device further includes a submersible pump 25, and the top end of the submersible pump 25 is connected with the water inlet interface 10. The water level monitoring device is characterized by further comprising a water level monitoring connecting pipe, an air pressure connecting pipe 20 and a water outlet drill rod 19, wherein the water level monitoring connecting pipe is vertically arranged, the upper end of the water level monitoring connecting pipe is connected with the second water level monitoring interface 12, evenly-spaced drilling holes are formed in the water level monitoring connecting pipe, and water can enter the water level monitoring connecting pipe conveniently through the drilling holes. Wherein the height of the bore hole is 10 m. Wherein the pneumatic connecting pipe 20 is connected with the pneumatic interface 4 for gas transmission. The inside of the water outlet drill rod 19 is hollow, and water can flow through the hollow water outlet drill rod. Wherein the water outlet drill pipe 19 is prior art and is well known to those skilled in the art. Wherein the lower end of the submersible pump 25 is a water pump inlet 21.
As shown in fig. 5, the test method using the above water pumping test device in this embodiment includes the following steps:
and S1, drilling according to design requirements, and washing the well by using high-pressure circulating water after the drilling is finished until the returned water is clear, so as to obtain the test well 22.
S2, installing the water stopping device 24, connecting the output end of the top end of the submersible pump 25 with the water inlet interface 10 on the water stopping device 24 through the installation connecting pipe 23, wherein one end of the installation connecting pipe 23 is connected with the output end of the top end of the submersible pump 25, the other end of the installation connecting pipe 23 is connected with the second water outlet interface, so that the water stopping device 24 and the submersible pump 25 are connected together, the water stopping device 24 is located vertically above the submersible pump 25, the water drill rod 19 is taken out, one end of the water outlet drill rod 19 is in threaded connection with the water outlet interface 2 of the water stopping device 24, and the water pumping test device is obtained. The submersible pump 25 and the water stop 24 can be easily inserted into the test well 22 via the drill pipe 19.
S2, opening the water level monitoring valve 11 and the water outlet and water stop valve 3 on the water stop device 24;
s3, a water intake level detection connecting pipe 26, wherein one end of the water level detection connecting pipe 26 is connected with the second water level monitoring interface 12, and the water intake level detector is put into the water pumping position through the water stopping device 24 and the water level detection connecting pipe 26. The water level change condition of pumping water can be monitored by the water level monitor.
And S4, taking the air pressure to connect the pipe 20, wherein one end of the air pressure connecting pipe 20 is connected with the air pressure connection port 4 on the water stopping device 24.
S5, the water pumping test device drives the water outlet drill rod 19 to be placed into the test well 22 through the drilling machine, the water level detection connecting pipe 26, the air pressure connecting pipe 20 and the water outlet drill rod 19 are bound by using an adhesive tape at intervals in the placing process until the water pumping test device stops after the designed detection position is reached, the other end of the water outlet drill rod 19 and the other end of the air pressure connecting pipe 20 are placed outside the test well 22, the other end of the air pressure connecting pipe 20 is connected with the air compressor, and the other end of the water outlet drill rod 19 is connected with the ground water amount monitoring device. The flow of the pumped water is detected by the water quantity monitoring device, and the water pumping quantity is recorded.
And S6, starting the air compressor, injecting gas into the rubber air bag 6 through the air pressure connecting pipe 20, inflating the rubber air bag 6 after the gas is injected, contacting with the inner side wall of the test well 22, closing the air compressor, maintaining the pressure, and achieving sealing and water stopping. And observing the water stopping effect.
And S7, starting the submersible pump 25, pumping the upper water source by the submersible pump 25, outputting the upper water source to the test well 22 through the water outlet drill rod 19, collecting water discharged from the other end of the water outlet drill rod 19, and taking out the water pumping test device to finish the water pumping test.
The following is explained by practical operation:
the hole depth of a certain exploration engineering drilling design is 100m, the aperture is 108mm, a water pumping test is required to be set at a section of 50m-60m according to design requirements, the water pumping test is divided into three times of depth reduction, which are respectively 52m, 56m and 60m, the design diameter of the water stopping device 24 is 90mm, the length of the water stopping device 24 is 2m, the length of the water outlet interface 2 at the upper end of the water stopping device 24 is 100mm, the length of the water outlet interface at the output end at the upper end of the water pump is 100mm, the interface length at the lower end of the water pump is 100mm, the water inlet 21 of the water pump is 300mm from the bottom surface of the water pump:
1. and (3) stopping drilling operation when the hole depth reaches about 61m (in order to prevent the water pump from being blocked by sediment at the bottom of the hole), washing the hole by adopting high-pressure circulating water after drilling is finished until water returns to be clear, and preparing to install a water pumping test device.
2. According to the requirement of a pumping test, a water outlet drill rod 19 of about 60m, an air pressure connecting pipe 20 and a water level detection connecting pipe 26 of a PVC pipe of about 60m are prepared.
3. A plurality of holes are drilled at regular intervals in a range of 10m of the water level detection connection pipe 26 close to the water stopping device 24 by using an electric drill.
4. And opening the water stopping device 24, and opening the water level monitoring valve 11 and the water outlet and water stopping valve 3.
5. And the second water outlet interface of the water stopping device 24 is in threaded connection with the output end of the top end of the submersible pump 25 through the mounting connecting pipe 23, and the actual length of the mounting connecting pipe 23 is 8.10 m.
6. The maximum water pumping depth is 60m according to the design requirement, so the final lowering position of the water stopping device 24 is 50.00 m.
7. The water level detection connection pipe 26 is connected to the second water level monitoring interface 12 of the water stop device 24, and the air pressure connection pipe 20 is connected to the air pressure interface 4 of the water stop device 24.
7. The water outlet interface 2 of the water stopping device 24 is in threaded connection with the water outlet drill rod 19 and is lowered into the drill hole step by the aid of a drilling machine. And in the lowering process, the water level detection connecting pipe 26 and the air pressure connecting pipe 20 are bound with the water outlet drill rod 19 at intervals by adopting an adhesive tape.
8. After the water stop device 24 and the submersible pump 25 are placed to the designed positions, the other end of the air pressure connecting pipe 20 is connected with the air compressor, and the flow monitoring device is arranged.
9. The air compressor is started to inject high-pressure gas into the water stopping device 24, and the air compressor is closed and the water stopping effect is checked after the water stopping effect is achieved.
10. And after the water stopping effect is qualified, the pre-pumping operation of the pumping test is started, and whether the design pumping test requirements can be met or not is observed.
11. And (3) carrying out a first-stage depth reduction test, firstly reducing the water level to about 59m by using the submersible pump 25, and slowly adjusting the water outlet control device along with the water pumping process to ensure that the water level is reduced to 60m after being stabilized.
12. And (5) performing a second-stage depth reduction test, raising the water level to about 57m by reducing the water yield or adjusting a water return valve, and slowly adjusting a water outlet control device along with the water pumping process to reduce the water level to 56m after the water level is stabilized.
13. And (5) carrying out a third-stage depth reduction test, raising the water level to about 53m by reducing the water yield or adjusting a water return valve, and slowly adjusting a water outlet control device along with the water pumping process to reduce the water level to 52m after stabilizing.
14. After the water pumping test is finished, the air pressure connecting pipe 20 at the air compressor at the ground end is removed, and the air in the rubber air bag 6 is released.
15. And the water outlet drill rod 19, the air pressure connecting pipe 20, the water level detection connecting pipe 26, the water stopping device 24 and the submersible pump 25 are taken out step by using a drilling machine.
16. And carrying out the next stage of drilling operation.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A stagnant water device for layering is taken out water experimental, its characterized in that includes:
the body is vertically arranged;
the rubber air bag (6), the rubber air bag (6) is sleeved on the outer wall of the body;
the pneumatic tube (15) is positioned in the body, one end of the pneumatic tube (15) extends out of the top end of the body and is provided with a pneumatic interface (4), the other end of the pneumatic tube (15) is provided with an air outlet (7), and the air outlet (7) is communicated with the rubber air bag (6);
outlet pipe (14), the vertical setting of outlet pipe (14), the lower extreme of outlet pipe (14) is into water interface (10), the lower extreme of outlet pipe (14) passes the body, the upper end of outlet pipe (14) is out water interface (2).
2. The water stopping device for the stratified water pumping test according to claim 1, further comprising a water level monitoring pipe (13), wherein the water level monitoring pipe (13) is vertically arranged, the lower end of the water level monitoring pipe (13) penetrates through the body, the upper end of the water level monitoring pipe (13) is provided with a first water level monitoring interface (1), and the lower end of the water level monitoring pipe (13) is provided with a second water level monitoring interface (12).
3. The water stopping device for the stratified water pumping test according to claim 2, wherein the body comprises a main steel pipe (8), a first steel joint (5) and a second steel joint (9), the main steel pipe (8) is vertically arranged, the first steel joint (5) is in threaded connection with the upper end of the main steel pipe (8), the second steel joint (9) is in threaded connection with the lower end of the main steel pipe (8), a placing groove is formed between the first steel joint (5) and the second steel joint (9), and the rubber air bag (6) is placed in the placing groove and sleeved on the outer wall of the main steel pipe (8).
4. The water stopping device for the stratified water pumping test according to claim 3, wherein a first water level monitoring preformed hole (16), a water outlet preformed hole (17) and a first air pressure preformed hole (18) are formed in the first steel joint (5), a second water level monitoring preformed hole (28) and a water inlet preformed hole (29) are formed in the second steel joint (9), the lower end of the water level monitoring pipe (13) passes through the first water level monitoring preformed hole (16) and the second water level monitoring preformed hole (28) and penetrates through the main body steel pipe (8), and the lower end of the water outlet pipe (14) passes through the water outlet preformed hole (17) and the water inlet preformed hole (29) and penetrates through the main body steel pipe (8).
5. The water stopping device for the stratified water pumping test according to claim 4, wherein sealing rubber pads are arranged in the first water level monitoring preformed hole (16), the water outlet preformed hole (17), the first air pressure preformed hole (18), the second water level monitoring preformed hole (28) and the water inlet preformed hole (29).
6. The water stopping device for the stratified water pumping test as claimed in claim 2, wherein a water level monitoring valve (11) for opening or closing the water level monitoring pipe (13) is provided at the second water level monitoring port (12).
7. The water stopping device for the stratified water pumping test according to any one of claims 1 to 6, wherein a water outlet water stopping valve (3) for opening or closing the water outlet pipe (14) is arranged at the water outlet interface (2).
8. A water pumping test device, characterized in that the water stopping device for the stratified water pumping test according to any one of claims 1 to 7 is included, the water pumping test device further includes a submersible pump (25), and one end of the submersible pump (25) is connected with the water outlet interface (2) or the water inlet interface (10).
9. A test method using the water pumping test device of claim 8, comprising the steps of:
s1, drilling according to design requirements, and obtaining a test well (22) after well washing;
s2, connecting the bottom end of a submersible pump (25) with a water outlet connector (2) on the water stopping device, taking out a water outlet drill rod (19), and connecting one end of the water outlet drill rod (19) with the top end output end of the submersible pump (25) in a threaded manner to obtain a water pumping test device;
s2, closing a water level monitoring valve (11) and a water outlet and water stop valve (3) on the water stop device;
s3, a water taking level detection connecting pipe (26), wherein one end of the water level detection connecting pipe (26) is connected with the first water level monitoring interface (1), and a water taking level monitor is placed in a water pumping position through the water level detection connecting pipe (26);
s4, a pressure connection pipe (20) is taken, and one end of the pressure connection pipe (20) is connected with a pressure interface (4) on the water stopping device;
s5, the water pumping test device is placed into a test well (22) through a water outlet drill rod (19) and is stopped until a designed detection position is reached, the other end of a water level detection connecting pipe (26), the other end of the water outlet drill rod (19) and the other end of an air pressure connecting pipe (20) are placed outside the test well (22), the other end of the air pressure connecting pipe (20) is connected with an air compressor, and the other end of the water outlet drill rod (19) is connected with a ground water amount monitoring device;
s6, starting an air compressor, injecting gas into the rubber air bag (6) through the air pressure connecting pipe (20), inflating the rubber air bag (6) after the gas is injected, closely contacting with the inner side wall of the test well (22), closing the air compressor, maintaining the pressure, and realizing sealing and water stopping;
s7, starting the submersible pump (25), pumping the upper water source by the submersible pump (25), outputting the upper water source to the test well (22) through the water outlet drill rod (19), collecting water discharged from the other end of the water outlet drill rod (19), and taking out the water pumping test device to finish the water pumping test.
10. A test method using the water pumping test device of claim 8, comprising the steps of:
s1, drilling according to design requirements, and obtaining a test well (22) after well washing;
s2, connecting the output end of the top end of a submersible pump (25) with a water inlet interface (10) on the water stopping device, taking out a water outlet drill rod (19), and connecting one end of the water outlet drill rod (19) with a water outlet interface (2) of the water stopping device in a threaded manner to obtain a water pumping test device;
s2, opening a water level monitoring valve (11) and a water outlet and water stop valve (3) on the water stop device;
s3, a water taking level detection connecting pipe (26), wherein one end of the water level detection connecting pipe (26) is connected with the second water level monitoring interface (12), and a water taking level detector is placed in a water pumping position through the water level detection connecting pipe (26);
s4, a pressure connection pipe (20) is taken, and one end of the pressure connection pipe (20) is connected with a pressure interface (4) on the water stopping device;
s5, the water pumping test device is placed into the test well (22) through the water outlet drill rod (19) until the water pumping test device stops after the water outlet drill rod reaches a designed detection position, the other end of the water outlet drill rod (19) and the other end of the air pressure connecting pipe (20) are placed outside the test well (22), the other end of the air pressure connecting pipe (20) is connected with an air compressor, and the other end of the water outlet drill rod (19) is connected with a ground water amount monitoring device;
s6, starting an air compressor, injecting gas into the rubber air bag (6) through the air pressure connecting pipe (20), inflating the rubber air bag (6) after the gas is injected, closely contacting with the inner side wall of the test well (22), closing the air compressor, maintaining the pressure, and realizing sealing and water stopping;
s7, starting the submersible pump (25), pumping the upper water source by the submersible pump (25), outputting the upper water source to the test well (22) through the water outlet drill rod (19), collecting water discharged from the other end of the water outlet drill rod (19), and taking out the water pumping test device to finish the water pumping test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010033224.8A CN111173474A (en) | 2020-01-13 | 2020-01-13 | Water stopping device for layered water pumping test, water pumping test device and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010033224.8A CN111173474A (en) | 2020-01-13 | 2020-01-13 | Water stopping device for layered water pumping test, water pumping test device and test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111173474A true CN111173474A (en) | 2020-05-19 |
Family
ID=70646665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010033224.8A Pending CN111173474A (en) | 2020-01-13 | 2020-01-13 | Water stopping device for layered water pumping test, water pumping test device and test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111173474A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779478A (en) * | 2020-06-30 | 2020-10-16 | 张哲� | Water stopper for pumping water resource and hydrogeology and use 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 |
| CN113944161A (en) * | 2021-10-30 | 2022-01-18 | 湖南梅溪湖建设有限公司 | Soft soil stratum anti-floating anchor rod construction method |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070215348A1 (en) * | 2006-03-20 | 2007-09-20 | Pierre-Yves Corre | System and method for obtaining formation fluid samples for analysis |
| CN101050696A (en) * | 2007-05-10 | 2007-10-10 | 河南理工大学 | Bag type paste injection hole sealing device and its hole sealing method |
| CN206845146U (en) * | 2017-06-20 | 2018-01-05 | 陕西地矿九0八水文地质工程地质大队 | A kind of water-stop and antipriming to be drawn water for Geology Drilling layering |
| CN107882518A (en) * | 2017-11-27 | 2018-04-06 | 山东省邱集煤矿 | Hydrology hole hole cleaning device and application method |
| CN108049837A (en) * | 2018-02-06 | 2018-05-18 | 高九华 | Elastic pouch hole packer |
| CN207686665U (en) * | 2017-12-27 | 2018-08-03 | 山东省交通规划设计院 | A kind of drill-hole pumping experiment water barrier device |
| 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 |
| CN208071018U (en) * | 2018-04-19 | 2018-11-09 | 浙江德嘉新材料有限公司 | A kind of tension-adjusting gear of PVC tarpaulins |
| CN108915630A (en) * | 2018-09-04 | 2018-11-30 | 北京泰利新能源科技发展有限公司 | A kind of simple plugging device |
| CN208416488U (en) * | 2018-05-18 | 2019-01-22 | 河北省地矿局国土资源勘查中心 | Fourth-series deep well layered water pumping and stopping device |
| CN109653704A (en) * | 2018-11-28 | 2019-04-19 | 山东省地质矿产勘查开发局第三水文地质工程地质大队(山东省鲁南地质工程勘察院) | Water stopper, layered water stopping device and system applied to geothermal well water pumping test |
| CN109723404A (en) * | 2019-03-04 | 2019-05-07 | 中国煤炭地质总局广东煤炭地质局勘查院 | Coal measure gas prospect pit naked eye device for plugging and method |
| CN209385092U (en) * | 2018-12-29 | 2019-09-13 | 华东勘测设计院(福建)有限公司 | A kind of geological prospecting borehole packer permeability test antipriming |
| CN212105823U (en) * | 2020-01-13 | 2020-12-08 | 西南石油大学 | Water stopping device for layered water pumping test and water pumping test device |
-
2020
- 2020-01-13 CN CN202010033224.8A patent/CN111173474A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070215348A1 (en) * | 2006-03-20 | 2007-09-20 | Pierre-Yves Corre | System and method for obtaining formation fluid samples for analysis |
| CN101050696A (en) * | 2007-05-10 | 2007-10-10 | 河南理工大学 | Bag type paste injection hole sealing device and its hole sealing method |
| CN206845146U (en) * | 2017-06-20 | 2018-01-05 | 陕西地矿九0八水文地质工程地质大队 | A kind of water-stop and antipriming to be drawn water for Geology Drilling layering |
| CN107882518A (en) * | 2017-11-27 | 2018-04-06 | 山东省邱集煤矿 | Hydrology hole hole cleaning device and application method |
| CN207686665U (en) * | 2017-12-27 | 2018-08-03 | 山东省交通规划设计院 | A kind of drill-hole pumping experiment water barrier device |
| CN108049837A (en) * | 2018-02-06 | 2018-05-18 | 高九华 | Elastic pouch hole packer |
| CN208071018U (en) * | 2018-04-19 | 2018-11-09 | 浙江德嘉新材料有限公司 | A kind of tension-adjusting gear of PVC tarpaulins |
| 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 |
| CN208416488U (en) * | 2018-05-18 | 2019-01-22 | 河北省地矿局国土资源勘查中心 | Fourth-series deep well layered water pumping and stopping device |
| CN108915630A (en) * | 2018-09-04 | 2018-11-30 | 北京泰利新能源科技发展有限公司 | A kind of simple plugging device |
| CN109653704A (en) * | 2018-11-28 | 2019-04-19 | 山东省地质矿产勘查开发局第三水文地质工程地质大队(山东省鲁南地质工程勘察院) | Water stopper, layered water stopping device and system applied to geothermal well water pumping test |
| CN209385092U (en) * | 2018-12-29 | 2019-09-13 | 华东勘测设计院(福建)有限公司 | A kind of geological prospecting borehole packer permeability test antipriming |
| CN109723404A (en) * | 2019-03-04 | 2019-05-07 | 中国煤炭地质总局广东煤炭地质局勘查院 | Coal measure gas prospect pit naked eye device for plugging and method |
| CN212105823U (en) * | 2020-01-13 | 2020-12-08 | 西南石油大学 | Water stopping device for layered water pumping test and water pumping test device |
Non-Patent Citations (3)
| Title |
|---|
| 武虎林: "膨胀胶管（气囊）止水器在水文地质孔分层抽水中的应用", 华北自然资源, no. 05, 15 October 2019 (2019-10-15), pages 112 - 114 * |
| 郝国利等: "新型分层抽水管内止水装置的研制", 探矿工程(岩土钻掘工程), vol. 44, no. 03, 10 March 2017 (2017-03-10), pages 39 - 43 * |
| 陕西省综合勘察院《供水水文地质勘察》编写组: "供水水文地质勘察", vol. 1, 29 February 1980, 北京：中国建筑工业出版社, pages: 165 - 167 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779478A (en) * | 2020-06-30 | 2020-10-16 | 张哲� | Water stopper for pumping water resource and hydrogeology and use 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 |
| CN113944161A (en) * | 2021-10-30 | 2022-01-18 | 湖南梅溪湖建设有限公司 | Soft soil stratum anti-floating anchor rod construction method |
| CN113944161B (en) * | 2021-10-30 | 2022-11-29 | 湖南梅溪湖建设有限公司 | Soft soil stratum anti-floating anchor rod construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111173474A (en) | Water stopping device for layered water pumping test, water pumping test device and test method | |
| CN110984960B (en) | Top pressure type layered water pumping and injecting test system and method for same-diameter drilling holes | |
| CN212105823U (en) | Water stopping device for layered water pumping test and water pumping test device | |
| CN109577956B (en) | Stratum respiratory effect simulation device and method | |
| CN106289662A (en) | A kind of steel pipe sealing inflating pressure detection device | |
| CN109162675A (en) | A kind of pressure control oil production method | |
| CN110984965A (en) | Air bag type layered water pumping test system and method for drilling holes in same diameter | |
| CN104297129A (en) | Hydrogeologic testing method based on water injection free vibration method | |
| CN111622706A (en) | Separation water-stopping device and method capable of transforming strong-sealing single-well double-layer hydrological monitoring well | |
| CN210948645U (en) | Air bag type layered water pumping test system for drilling holes in same diameter | |
| KR101653609B1 (en) | Survey apparatus of deep well aquifer underground water | |
| CN107165672A (en) | A kind of descending borehole fissure water suction system of country rock | |
| CN111042786A (en) | Hydraulic fracturing measuring device suitable for three-dimensional measuring device | |
| CN210919022U (en) | Roof pressure formula layering of same footpath drilling test system that draws water | |
| CN111980044B (en) | Dewatering well structure for separating adjacent aquifers and method for backfilling outside well wall | |
| CN211347858U (en) | Geological engineering test device | |
| CN112627785B (en) | Low-frequency variable-pressure oil reservoir exploitation method, device and system for residual oil in pores | |
| CN210090263U (en) | Water-pressure test device for engineering geological investigation | |
| CN113756775A (en) | Hydraulic permeability increasing process for large-dip-angle low-permeability coal seam | |
| CN201013308Y (en) | Sand-proof oil drain valve | |
| CN204984328U (en) | Sucker rod hangs tubing flow displacement device | |
| CN110018103B (en) | Building foundation on-site penetration test device and test method thereof | |
| CN112943169B (en) | Positive circulation gas injection, drainage and gas production system for small-diameter oil pipe | |
| CN214894734U (en) | Weathered bedrock hole-fracture vertical permeability testing device | |
| CN220285709U (en) | Blowout preventer pressure testing device |
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 |