CN116752928A - Layered water stopping device for pumping test of exploration well and use method of layered water stopping device - Google Patents
Layered water stopping device for pumping test of exploration well and use method of layered water stopping device Download PDFInfo
- Publication number
- CN116752928A CN116752928A CN202310557767.3A CN202310557767A CN116752928A CN 116752928 A CN116752928 A CN 116752928A CN 202310557767 A CN202310557767 A CN 202310557767A CN 116752928 A CN116752928 A CN 116752928A
- Authority
- CN
- China
- Prior art keywords
- water
- connecting pipe
- ring
- siphunculus
- soft
- 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 79
- 238000005086 pumping Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000002250 absorbent Substances 0.000 claims abstract description 38
- 239000011347 resin Substances 0.000 claims abstract description 38
- 229920005989 resin Polymers 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 125000003003 spiro group Chemical group 0.000 claims description 4
- 235000020681 well water Nutrition 0.000 claims description 2
- 239000002349 well water Substances 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 6
- 239000008187 granular material Substances 0.000 abstract 2
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 19
- 229920001971 elastomer Polymers 0.000 description 12
- 230000002745 absorbent Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229910000756 V alloy Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- NWJUARNXABNMDW-UHFFFAOYSA-N tungsten vanadium Chemical compound [W]=[V] NWJUARNXABNMDW-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/122—Multiple string packers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
- E21B33/1277—Packers; Plugs with inflatable sleeve characterised by the construction or fixation of the sleeve
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a layered water stopping device for a pumping test of an exploration well and a use method thereof. The soft ring cover transversely expands, the ring awl is pressed into the drilling inner wall, not only increases this sealing device to drilling cooperation sealing performance, but also can ensure this sealing device stability in the drilling, water-absorbent resin granule effectively fills between soft baffle ring, under the water effect between the soft baffle ring of the inner wall exudation of drilling, water-absorbent resin granule begins quick water-absorbent expansion, until effectively filling to the space that comprises soft baffle ring, limit skirt and drilling inner wall, because its peculiar water absorption effect, when the drilling inner wall goes out water, reinforcing whole water-stopping ability, consequently water-stopping stability is better.
Description
Technical Field
The invention belongs to the technical field of geological exploration equipment, and particularly relates to a layered water stopping device for a water pumping test of an exploration well and a use method of the layered water stopping device.
Background
In geological exploration, it is often necessary to open a borehole in the exploration area by means of a drilling device. In order to obtain the water content of soil layers with different depths, water stopping operation is needed to be carried out on the drilled holes in the earlier stage of pumping.
The authorized bulletin number is: the invention patent of CN111173474A discloses a water stopping device for layered water pumping test, a water pumping test device and a test method, and relates to a rubber air bag 6, wherein the rubber air bag 6 is sleeved on the outer wall of the body; the air pressure pipe 15 is positioned in the body, the top end of one end of the air pressure pipe 15 extending out of the body is an air pressure interface 4, the other end of the air pressure pipe 15 is an air outlet 7, and the air outlet 7 is communicated with the rubber air bag 6; the water outlet pipe 14 is vertically arranged, the lower end of the water outlet pipe 14 is provided with a water inlet interface 10, the lower end of the water outlet pipe 14 penetrates through the body, and the upper end of the water outlet pipe 14 is provided with a water outlet interface 2; when the rubber air bag 6 receives high-pressure gas, the shrinkage deformation in the vertical direction is not generated, so that the stability of a well wall can be greatly protected, and particularly when a pumping experiment is carried out on a sandy pebble layer or a gravel layer, a common water stopping device 24 can generate more than half of the vertical shrinkage distance when expanding; however, although the rubber bag 6 can be inflated instantaneously and quantitatively, because the sand and gravel particles or the gravel particles exist on the inner wall of the drill hole, under the outline of the quantitative inflation, gaps are easily formed between the rubber bag and the inner wall of the drill hole due to the fact that the outer wall of the rubber bag is propped against the sand and gravel particles or the sand and gravel particles, so that the water stopping effect is unstable, and a water stopping device with better and stable water stopping effect is needed to be arranged.
Disclosure of Invention
The invention aims to provide a layered water stopping device for a pumping test of an exploration well, which aims to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a exploration well water pumping test layering sealing device, includes the takeover, the bottom of takeover is provided with the limit ring, the lower extreme hoop of takeover is evenly connected with the connecting rod and the bottom of connecting rod is connected with the layer board, the outer fringe hoop of limit ring and layer board evenly is equipped with the annular and is provided with soft baffle ring in the annular, the inner bottom of takeover is provided with the separation blade, be provided with the water absorbent resin filling in the takeover, the takeover is interior and be located the upper portion of water absorbent resin filling and be provided with first clamp plate, the outer fringe of first clamp plate is provided with first sealing ring and first sealing ring compresses tightly the inner wall at the takeover;
the utility model discloses a connecting pipe, including connecting pipe, first clamp plate, second clamp plate, the connecting pipe is gone up the hoop and is evenly equipped with the through-hole, connecting pipe and be located the through-hole and all be provided with the outer loop in the position about the through-hole, be provided with soft ring cover in the outer loop and soft ring cover communicates in through-hole and the connecting pipe, the top spiro union of connecting pipe has the siphunculus, the bottom hoop of siphunculus evenly is equipped with gas pocket and siphunculus and communicates through gas pocket and takeover, the top of first clamp plate is connected with the movable rod, the movable rod runs through the bottom of siphunculus to in the siphunculus, the one end that the movable rod worn to the siphunculus is connected with the second clamp plate, the second clamp plate is located the siphunculus, peripheral air pressurization pipeline is connected at the top of siphunculus.
Preferably, the side rings and the supporting plates are uniformly provided with supporting plates in the circumferential direction, and the supporting plates are fixed and supported on the soft baffle ring.
Preferably, the outer edge of the soft baffle ring is provided with an edge skirt.
Preferably, the outer wall of the soft ring cover is provided with a ring cone.
Preferably, the outer fringe of second clamp plate is provided with the second sealing ring, the second sealing ring compresses tightly the inner wall at the siphunculus, the cover is equipped with the spring on the movable rod, the spring is located the siphunculus and is located the lower part of second clamp plate.
Preferably, the top spiro union of siphunculus has the top cap, be provided with the takeover on the top cap, be connected with on the takeover and connect the air hose and connect peripheral hardware compressed gas station.
A method of using a water-pumping test layered water stop device for an exploration well, comprising the steps of:
step one: lowering to the borehole;
step two: air inflation water stop and water absorption inflation filling water stop;
step three: prepared for use.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the compressed air rapidly presses down the second pressing plate, the second pressing plate presses air at the lower part of the second pressing plate into the soft ring cover through the through hole, so that the soft ring cover transversely expands, the ring cone is pressed into the inner wall of the drilling hole, the sealing performance of the water stopping device on the drilling hole is improved, and the stability of the water stopping device in the drilling hole can be ensured; meanwhile, the spring is compressed, the movable rod moves downwards to drive the first pressing plate to move downwards, the water-absorbent resin filling layer presses the baffle sheet out of the connecting pipe instantaneously, water-absorbent resin particles are effectively filled between the soft baffle rings, under the action of water seeping from the inner wall of the drill hole to the soft baffle rings, the water-absorbent resin particles start to rapidly absorb water and expand until the water-absorbent resin particles are effectively filled into a space formed by the soft baffle rings, the skirt and the inner wall of the drill hole, after the water-absorbent resin absorbs water, the soft water-absorbent resin particles are softer than rubber, the water-absorbent resin particles effectively wrap the inner wall of the drill hole, and water-permeable gaps are effectively filled.
The application method related by the invention is simple and reliable in operation.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view in partial cutaway of FIG. 1;
FIG. 3 is an enlarged schematic view of the soft stop ring connection of FIG. 2;
fig. 4 is an enlarged schematic view of the nipple connection of fig. 2.
In the figure: 1 connecting pipe, 2 side rings, 3 connecting rods, 4 supporting plates, 5 ring grooves, 6 soft baffle rings, 7 supporting plates, 8 side skirts, 9 baffle plates, 10 water absorbent resin filling layers, 11 first pressing plates, 12 first sealing rings, 13 through holes, 14 outer rings, 15 soft ring covers, 16 ring cones, 18 air holes, 19 movable rods, 20 springs, 21 second pressing plates, 22 second sealing rings, 23 through pipes, 24 top covers, 25 connecting pipes and 26 air connecting hoses.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1, 2 and 3, a layered water stop device for a pumping test of an exploration well comprises a connecting pipe 1, wherein the bottom of the connecting pipe 1 is integrally provided with a side ring 2, the lower end of the connecting pipe 1 is uniformly welded with a connecting rod 3, the bottom of the connecting rod 3 is welded with a supporting plate 4, the outer edge of the side ring 2 and the supporting plate 4 are uniformly provided with annular grooves 5 in an annular manner, the annular grooves 5 are internally bonded with a soft baffle ring 6 by adopting AB resin glue, the soft baffle ring 6 is made of neoprene, the side ring 2 and the supporting plate 4 are uniformly welded with supporting plates 7 in an annular manner, the supporting plates 7 are made of tungsten-vanadium alloy with the thickness of 1 mm, the supporting plates 7 are bonded on the soft baffle ring 6, the supporting capability of the soft baffle ring 6 is enhanced, the outer edge of the soft baffle ring 6 is integrally provided with an edge skirt 8, the inner bottom of the connecting pipe 1 is tightly inserted into a baffle plate 9, a water-absorbing resin filling layer 10 is filled in the inner side ring 1, the annular grooves 10 are formed by piling water-absorbing resin particles which are not absorbed, a first pressing plate 11 is placed on the inner side of the annular grooves 1 and are positioned on the upper part of the water-absorbing resin filling layer 10, the first pressing plate 11 is bonded with the first sealing ring 12, and the first sealing ring 12 is well matched with the first pressing plate 1 by moving the first pressing plate 12, and the first pressing plate 12 is arranged on the inner wall 12 is well;
referring to fig. 1, 2, 3 and 4, through holes 13 are uniformly formed in the upper circumferential direction of a connecting pipe 1, an outer ring 14 is uniformly arranged at the upper and lower positions of the connecting pipe 1 and located above and below the through holes 13, resin glue is adopted to bond a soft ring cover 15 on the inner wall of the outer ring 14, the material of the soft ring cover 15 is neoprene, the soft ring cover 15 is communicated with the inside of the connecting pipe 1 through the through holes 13, a ring cone 16 is integrally arranged on the outer wall of the soft ring cover 15, when the air is introduced into the soft ring cover 15 through the through holes 13 of the connecting pipe 1, the soft ring cover 15 is blocked by the outer ring 14, so that the soft ring cover 15 transversely expands and is tightly pressed on the inner wall of a drilled hole, thereby avoiding the vertical expansion to bump the particles on the inner wall of the drilled hole, a through pipe 23 is screwed on the top of the connecting pipe 1, a sealing ring groove is arranged at the bottom of the through pipe 23, sealing ring pieces are inserted in the sealing ring groove, when the connecting pipe 1 locks the through pipe 23, good matching tightness is ensured after the connecting pipe 1 and the through pipe 23 are connected, the bottom of the through pipe 23 is uniformly provided with air holes 18 in the circumferential direction, the through pipe 23 is communicated with the connecting pipe 1 through the air holes 18, the center of the top of the first pressing plate 11 is connected with a movable rod 19 in a threaded manner, the outer edge of the second pressing plate 21 is bonded with a second sealing ring 22 by resin glue, the second sealing ring 22 is tightly pressed on the inner wall of the through pipe 23, when the second pressing plate 21 moves up and down on the inner wall of the through pipe 23 through the cooperation of the second sealing ring 22 and the inner wall of the through pipe 23, the air in the descending space of the second pressing plate 21 can be effectively pushed downwards, the movable rod 19 is sleeved with a spring 20, the spring 20 is in compression rebound type, the initial compression rebound force of the spring 20 is 20 newton, the spring 20 is positioned in the through pipe 23 and is positioned at the lower part of the second pressing plate 21, the movable rod 19 slides to penetrate the bottom of the through pipe 23, one end of the movable rod 19 penetrates into the through pipe 23 and is integrally arranged with the second pressing plate 21, when compressed air is introduced into the upper part of the through pipe 23, the second pressing plate 21 is rapidly pressed down, and the second pressing plate 21 presses the air at the lower part of the second pressing plate into the soft ring cover 15 through the through hole 13, so that the soft ring cover 15 transversely expands, the ring cone 16 is pressed into the inner wall of the drill hole, the sealing performance of the water stopping device on the drill hole is improved, and the stability of the water stopping device in the drill hole can be ensured; meanwhile, the spring 20 is compressed, the movable rod 19 moves downwards to drive the first pressing plate 11 to move downwards, so that the water-absorbent resin filling layer 10 instantly presses the baffle sheet 9 out of the connecting pipe 1, water-absorbent resin particles are effectively filled between the soft baffle rings 6, under the action of water seeping from the inner wall of the drill hole to the soft baffle rings 6, the water-absorbent resin particles start to rapidly absorb water and expand until the water-absorbent resin particles are effectively filled into a space formed by the soft baffle rings 6, the skirt 8 and the inner wall of the drill hole, after the water-absorbent resin absorbs water, the soft rubber is softer than rubber, the water-absorbent resin particles effectively wrap the inner wall of the drill hole, and water-absorbent gaps are effectively filled, and in addition, due to the special water-absorbent effect, the water-absorbent sealing performance of the lower layer of the water-absorbent device is better, and the overall water-absorbent capacity is enhanced when water is discharged from the inner wall of the drill hole;
referring to fig. 1 and 2, a top cover 24 is screwed and locked at the top of a through pipe 23, a ring groove is formed in the inner top of the top cover 24, an oil-immersed asbestos packing ring is inserted into the ring groove, when the top cover 24 is locked at the top of the through pipe 23, the top cover 24 and the through pipe 23 can be guaranteed to be matched and sealed, a connecting pipe 25 is integrally arranged on the top cover 24, an air receiving hose 26 is sleeved on the connecting pipe 25 in an interference mode, and the air receiving hose 26 is connected with an external compressed air station exhaust hole.
A method of using a water-pumping test layered water stop device for an exploration well, comprising the steps of:
step one: lowering to the borehole;
step two: air inflation water stop and water absorption inflation filling water stop;
step three: prepared for use.
More specifically, it is:
lowering to the borehole: in use, the water stop is lowered into the borehole through the air hose 26 until it is lowered to the depth where water stop is required.
Inflation water stop and water absorption inflation filling water stop: starting a compressed air station, wherein compressed air is quickly discharged into a through pipe 23 through an air receiving hose 26, the compressed air quickly presses down a second pressing plate 21, the air at the lower part of the second pressing plate 21 is pressed into a soft ring cover 15 through a through hole 13, so that the soft ring cover 15 transversely expands, a ring cone 16 is pressed into the inner wall of a drilling hole, the sealing performance of the water stopping device on the drilling hole is improved, and the stability of the water stopping device in the drilling hole can be ensured; meanwhile, the spring 20 is compressed, the movable rod 19 moves downwards to drive the first pressing plate 11 to move downwards, so that the water-absorbent resin filling layer 10 instantly presses the baffle sheet 9 out of the connecting pipe 1, water-absorbent resin particles are effectively filled between the soft baffle rings 6, under the action of water seeping from the inner wall of the drill hole to the soft baffle rings 6, the water-absorbent resin particles start to rapidly absorb water and expand until the water-absorbent resin particles are effectively filled into a space formed by the soft baffle rings 6, the skirt 8 and the inner wall of the drill hole, after the water-absorbent resin absorbs water, the soft rubber is softer than rubber, the water-absorbent resin particles effectively wrap the inner wall of the drill hole, and the water-absorbent resin filling layer is effectively filled into all water-permeable gaps, and in addition, due to the special water-absorbent effect, the water-absorbent resin filling layer is better in water-absorbent sealing performance, and the overall water-absorbent stopping capability is enhanced when water is discharged from the inner wall of the drill hole, so that the water-absorbent resin filling stability is better;
preparing for standby: after the water pumping test is finished, the air supply of the compressed air station is stopped, the second pressing plate 21 is pushed upwards under the action of the resilience force of the spring 20, so that the movable rod 19 and the first pressing plate 11 are driven to move upwards, the air in the soft ring cover 15 is sucked into the connecting pipe 1 through the through hole 13, the water absorbing resin part absorbing water is sucked into the connecting pipe 1, the air hose 26 is pulled up until the water stopping device is drilled out, the connecting pipe 1 is screwed out of the through pipe 23, the first pressing plate 11 is pulled out of the connecting pipe 1, finally the water absorbing resin is poured out, after water stains everywhere are wiped, a baffle 9 is tightly inserted from the lower port of the connecting pipe 1, a proper amount of non-water absorbing resin is filled from the upper port of the connecting pipe 1, the first pressing plate 11 is inserted into the connecting pipe 1, the connecting pipe 1 is locked on the through pipe 23, and the water stopping device can be put into the next water stopping use.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.
Claims (7)
1. The utility model provides a exploration well water pumping test layering sealing device which characterized in that: the connecting pipe comprises a connecting pipe (1), wherein an edge ring (2) is arranged at the bottom of the connecting pipe (1), a connecting rod (3) is uniformly connected to the lower end of the connecting pipe (1) in an annular direction, a supporting plate (4) is connected to the bottom of the connecting rod (3), annular grooves (5) are uniformly formed in the edge ring (2) and the outer edge ring of the supporting plate (4) in an annular direction, soft baffle rings (6) are arranged in the annular grooves (5), baffle plates (9) are arranged at the inner bottoms of the connecting pipe (1), a water-absorbent resin filling layer (10) is arranged in the connecting pipe (1), a first pressing plate (11) is arranged at the upper part of the water-absorbent resin filling layer (10) in the connecting pipe (1), and a first sealing ring (12) is arranged at the outer edge of the first pressing plate (10) and tightly pressed on the inner wall of the connecting pipe (1);
the utility model discloses a connecting pipe, including connecting pipe (1), through-hole (13) are evenly equipped with to the hoop, connecting pipe (1) and be located through-hole (13) upper and lower position all are provided with outer loop (14), be provided with soft ring cover (15) and soft ring cover (15) in outer loop (14) and pass through-hole (13) and connecting pipe (1) internal communication, the top spiro union of connecting pipe (1) has siphunculus (23), the bottom hoop of siphunculus (23) evenly is equipped with gas pocket (18) and siphunculus (23) communicates with connecting pipe (1) through gas pocket (18), the top of first clamp plate (11) is connected with movable rod (19), in the bottom of movable rod (19) runs through siphunculus (23), the one end that movable rod (19) worn siphunculus (23) is connected with second clamp plate (21), second clamp plate (21) are located siphunculus (23), the top connection peripheral hardware air pressurization pipeline of siphunculus (23).
2. The exploration well pumping test layered water stop device according to claim 1, wherein: support pieces (7) are uniformly arranged on the edge ring (2) and the supporting plate (4) in the circumferential direction, and the support pieces (7) are fixed and supported on the soft baffle ring (6).
3. The exploration well pumping test layered water stop device according to claim 1, wherein: the outer edge of the soft baffle ring (6) is provided with an edge skirt (8).
4. The exploration well pumping test layered water stop device according to claim 1, wherein: the outer wall of the soft ring cover (15) is provided with a ring cone (16).
5. The exploration well pumping test layered water stop device according to claim 1, wherein: the outer fringe of second clamp plate (21) is provided with second sealing ring (22), second sealing ring (22) compress tightly the inner wall at siphunculus (23), the cover is equipped with spring (20) on movable rod (19), spring (20) are located siphunculus (23) and are located the lower part of second clamp plate (21).
6. The exploration well pumping test layered water stop device according to claim 1, wherein: the top spiro union of siphunculus (23) has top cap (24), be provided with takeover (25) on top cap (24), be connected with on takeover (25) and connect air hose (26) and connect peripheral hardware compressed gas station.
7. A method of using a survey well pumping test layered water stop apparatus of claims 1-6, comprising the steps of:
step one: lowering to the borehole;
step two: air inflation water stop and water absorption inflation filling water stop;
step three: prepared for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310557767.3A CN116752928A (en) | 2023-05-17 | 2023-05-17 | Layered water stopping device for pumping test of exploration well and use method of layered water stopping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310557767.3A CN116752928A (en) | 2023-05-17 | 2023-05-17 | Layered water stopping device for pumping test of exploration well and use method of layered water stopping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116752928A true CN116752928A (en) | 2023-09-15 |
Family
ID=87954178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310557767.3A Pending CN116752928A (en) | 2023-05-17 | 2023-05-17 | Layered water stopping device for pumping test of exploration well and use method of layered water stopping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116752928A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117759196A (en) * | 2024-02-22 | 2024-03-26 | 山东省地质矿产勘查开发局第七地质大队（山东省第七地质矿产勘查院） | exploration hole layering pumping test seals and separates sealing device |
-
2023
- 2023-05-17 CN CN202310557767.3A patent/CN116752928A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117759196A (en) * | 2024-02-22 | 2024-03-26 | 山东省地质矿产勘查开发局第七地质大队（山东省第七地质矿产勘查院） | exploration hole layering pumping test seals and separates sealing device |
| CN117759196B (en) * | 2024-02-22 | 2024-05-03 | 山东省地质矿产勘查开发局第七地质大队（山东省第七地质矿产勘查院） | Exploration hole layering pumping test seals and separates sealing device |
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