CN106149664B - Water stop device in layered water pumping pipe - Google Patents
Water stop device in layered water pumping pipe Download PDFInfo
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- CN106149664B CN106149664B CN201610731248.4A CN201610731248A CN106149664B CN 106149664 B CN106149664 B CN 106149664B CN 201610731248 A CN201610731248 A CN 201610731248A CN 106149664 B CN106149664 B CN 106149664B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
- E02D1/02—Investigation of foundation soil in situ before construction work
- E02D1/06—Sampling of ground water
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Abstract
The invention discloses a water stopping device in a layered water pumping pipe, which comprises a water stopping material layer arranged at the diameter-changing position of a well pipe, an upper pressing plate arranged at the upper part of the water stopping material layer, a thrust pressing plate arranged at the lower part of the water stopping material layer, a counterweight rod and a ventilation observation pipe, wherein the counterweight rod penetrates through the water stopping material layer and the upper pressing plate, the lower end of the counterweight rod penetrates through the thrust pressing plate, the lower part of the counterweight rod is provided with a guide positioning wing, and the upper end of the counterweight rod is provided with a. Go up pressure disk, sealing material layer and thrust pressure disk corresponding position and be equipped with the via hole that is used for wearing to establish submersible pump pipe, cable and counterweight rod. The invention is provided with the upper pressure plate, the water stop material layer and the thrust pressure plate, effectively solves the problems of the prior water stop method, can simultaneously observe the water level changes of the upper and lower aquifers during use, detects the water stop effect, greatly reduces the water stop cost, and has the advantages of simplicity, practicability and reliable water stop effect.
Description
Technical Field
The invention relates to a water stopping device in a layered water pumping pipe, which is applied to respectively carrying out observation and water pumping tests on different aquifers during hydrogeological drilling.
Background
In the layered water stop, when hydrogeological drilling is performed in areas with different aquifers or aquifers, observation and water pumping tests are required to be respectively performed according to the different aquifers in order to obtain hydrogeological parameters such as water quantity, water level, water quality, water temperature and the like of each aquifer. According to the design requirement, the upper and lower aquifers of the well are isolated and sealed at the position of the water-resisting layer, and the work of preventing the upper and lower aquifers from communicating is called layered water sealing. The water-stopping device comprises two parts of water stopping outside the pipe and water stopping inside the pipe, wherein the water stopping outside the pipe is generally made of water stopping materials to carry out permanent water stopping on a water stopping section (a water-resisting layer); the water stopping in the pipe is performed temporarily at a reasonable water stopping position designed in the well pipe so as to perform water pumping tests of different aquifers in the same well and obtain geological parameters of the different aquifers.
At present, when water in a stratified water pumping pipe is stopped domestically, a casing pipe laying method, a water stop plug water stop method and an inflatable air bag water stop method are generally adopted. The former method needs to prepare a pipe, has high cost, complicated working procedures such as pipe laying, pipe lifting, water stop plug laying and the like, has long interval time, and is easy to cause accidents in holes. The second method requires a set of special inflation equipment to be installed on the ground, and has complex operation and poor safety. In a word, the two methods cannot well observe the water level change of the upper aquifer and the lower aquifer at the same time, and cannot accurately judge whether the water stopping effect meets the requirements of the layered water pumping test, so that a more practical and reliable layered water stopping device needs to be designed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a water stopping device in a layered water pumping pipe, which has a simple structure, can simultaneously observe the water level changes of an upper aquifer and a lower aquifer and can greatly reduce the water stopping cost.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a water stop device in layering pumping pipe, its key technology lies in: the water-stopping observation pipe comprises a water-stopping material layer arranged at the reducing position of a well pipe, an upper pressure plate arranged on the upper portion of the water-stopping material layer, a thrust pressure plate arranged on the lower portion of the water-stopping material layer, a weight rod penetrating through the water-stopping material layer and the upper pressure plate, and a ventilation observation pipe, wherein the upper end of the weight rod penetrates through the water-stopping material layer and the upper pressure plate, the lower end of the weight rod penetrates through the thrust pressure plate, the lower portion of. Go up pressure disk, sealing material layer and thrust pressure disk corresponding position and be equipped with the via hole that is used for wearing to establish submersible pump pipe, cable and counterweight rod.
Preferably, the water stopping material layer is an upper rubber sheet pad, a twisted braid-shaped kelp and/or an expansion rubber belt and a lower rubber sheet pad which are fixed together in sequence from top to bottom.
Preferably, the guide positioning wing is conical, and the water stopping material layer is in a cone frustum shape.
The technical effect produced by adopting the technical scheme is as follows:
1. the invention has set up upper pressure disk, stagnant water bed and thrust pressure disk, solve the problem that the past stagnant water method exists effectively, can observe the upper and lower aquifer water level change at the same time while using, detect the stagnant water effect, has greatly reduced the cost of stagnant water, it is simple and practical, stagnant water effect is reliable:
2. all the parts are fixedly connected, so that the structure is simple, local materials can be obtained, and the processing is easy; the water-stopping device is convenient to use and simple to operate, and can realize quick water stopping and recovery; compared with other water stopping methods, the method has low cost, time saving and labor saving; the safety performance is good when the device is used, and various in-hole accidents are avoided; therefore, layered water stop in the pipe can be quickly realized in the same well hole, and the layered water pumping test is facilitated;
3. the invention has wide application, can be repeatedly used and is easy to popularize.
Drawings
FIG. 1 is a schematic view of the water stop apparatus of the present invention during the pumping of water from the upper aquifer;
FIG. 2 is a schematic view of the water stop apparatus of the present invention during the pumping of water from the lower aquifer;
1. the device comprises a well pipe, 2, an upper aquifer, 3, a submersible pump, 4, clay ball water stopping outside the pipe, 5, a thrust pressure plate, 6, a guide positioning wing, 7, a lower aquifer, 8, a counterweight rod, 9, a water stopping material layer, 10, an upper pressure plate, 11, a lifting ring, 12 and a ventilation observation pipe.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
Taking a certain well as an example, the pumping test comprises three parts: mixed water pumping test, upper and lower aquifer layered water pumping test. The mixed water pumping does not need to seal a layer for water stopping, but the water pumping tests of the upper aquifer and the lower aquifer need to be carried out on a strict temporary water stopping device up and down, so that the water stopping is carried out in a closed manner in the well pipe on different aquifers in the same well hole, the upper aquifer and the lower aquifer are prevented from communicating with each other, the effect of isolating the upper aquifer from the lower aquifer is achieved, and the stratified water pumping test is convenient to.
The structure of the device and how to adopt the device to realize the stratified water pumping test are described below with reference to the attached drawings.
Referring to the attached drawing 1, the water-stopping device comprises a water-stopping material layer 9 arranged at the diameter-changing position of a well pipe, an upper pressing plate 10 arranged at the upper part of the water-stopping material layer, a thrust pressing plate 5 connected to the lower part of the water-stopping material layer 9, a counterweight rod 8 penetrating through the water-stopping material layer 9 and the upper pressing plate 10 and extending out, the lower end of the counterweight rod 8 penetrates through the thrust pressing plate 5 and extends out, the lower part of the counterweight rod 8 is provided with a guide positioning wing 6 (when the lower water-stopping layer needs to be pumped, the guide positioning wing 6 can be installed on a pump pipe of a submersible pump 3, the pump pipe can replace the counterweight rod), the upper end of the counterweight rod 8 is provided with a lifting ring 11 (also called a reverse screw joint), and through holes for penetrating through the pump pipe, a cable and the counterweight rod of the submersible pump are arranged at corresponding positions of. The waterproof material layer 9 is composed of an upper rubber sheet pad, a twisted braid-shaped kelp and/or an expanded rubber belt and a lower rubber sheet pad which are fixed together from top to bottom in sequence. When the ventilating observation tube is used, the weight rod 8 is made of round steel 6m long and 75mm in diameter, the ventilating observation tube 12 is made of a 1.2-inch galvanized tube, and other specifications can be adopted according to actual conditions, so that the use requirement can be met.
The layered water stopping device is respectively used for stopping water when water is pumped from the upper aquifer and the lower aquifer.
1. Water stop for water pumping of upper aquifer
The water-stopping device is used for stopping water when the upper water layer is subjected to a water pumping test and isolating the lower water-bearing layer.
When the kelp sealing device is used, two rubber pads (made of conveying belts) are respectively arranged below the upper pressure plate 10, kelp is soaked and dried, then the kelp is woven into a twisted braid shape with a proper size and wound below the rubber pads, the outside of the kelp is wrapped by plastic, and finally the kelp is screwed down by iron wires to form a water sealing material layer 9. Then the water-stopping material is put down to a water-stopping position (a reducing position of a well pipe) by a steel wire rope or a drill rod, the water-stopping material is pressed down by the upper pressure plate 10 under the action of the counterweight rod 8, the lower thrust pressure plate 5 is connected below the water-stopping material layer 9, the lower thrust pressure plate 5 plays a role in pushing, the water-stopping material is compressed together, and the water-stopping material expands when meeting water, so that the purposes of separating an upper water-containing layer from a lower water-containing layer and.
2. Water stop for pumping water from lower aquifer
Used for stopping water when pumping water to the lower aquifer and isolating the upper aquifer. When the lower part pumps water, the water stopping device needs to be combined with a pumping device and is put into the well together, so that the purposes of stopping water and pumping water are achieved.
The upper pressure plate 10 is provided with a cable and a through hole of a pump pipe of the submersible pump, and is connected with a pump pipe flange. When the kelp seaweed water stopping device is used, the upper pressure plate 10 is connected with a pump pipe, two rubber pads (made of conveying belts) are arranged below the upper pressure plate, kelp is soaked and dried, then the kelp is braided into a twisted braid shape and wound below the rubber pads, the outer part of the kelp is wrapped by plastics, and finally the kelp is screwed down by iron wires to form a water stopping material layer. Then put down to the stagnant water position, go into simultaneously that the observation pipe 12 of ventilating descends, go up pressure disk 10 and push down the stagnant water material under immersible pump and pump line action of gravity (can not use the weight pole under this condition, immersible pump and pump line have played the effect of weight pole this moment, the pump line also can play the effect of direction, the direction locating wing also can not be used this moment, if install it on the pump line if using), thrust pressure disk 5 plays the top and pushes away the effect, compresses tightly the stagnant water material jointly, stagnant water material meets water inflation to reach the upper and lower aquifer of isolation, seal stagnant water pumping mesh.
At present, in order to obtain different aquifer hydrogeological parameters in the same well, more and more layering water stopping needs to be carried out in the same well, and a layering water stopping device is improved and innovated according to the actual condition of the well. The invention can be improved as follows:
(1) the device is arranged in the reducing well pipe and directly located at the reducing joint, so that when the water stopping is carried out on the same-diameter well, a step check ring of the water stopping device needs to be arranged at a set water stopping position, the device is guaranteed not to move up and down, and the result of a water pumping test is influenced.
(2) In order to ensure the water stopping and isolating effect, a double-layer water stopping structure combining kelp and expanded rubber can also be adopted.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (1)
1. The utility model provides a stagnant water device in layering pumping pipe which characterized in that: the well casing water-stopping device comprises a water-stopping material layer (9) arranged at the diameter-changing position of a well pipe, an upper pressing plate (10) arranged on the upper part of the water-stopping material layer (9), a thrust pressing plate (5) arranged on the lower part of the water-stopping material layer (9), a counterweight rod (8) arranged on the water-stopping material layer (9) in a penetrating mode and an aeration observation pipe (12), wherein the upper end of the counterweight rod (8) penetrates through the water-stopping material layer (9) and the upper pressing plate (10), the lower end of the counterweight rod (8) penetrates through the thrust pressing plate (5), a guide positioning wing (6) is arranged on;
the water stopping material layer (9) is sequentially provided with an upper rubber sheet pad, a twisted braid-shaped kelp and a lower rubber sheet pad which are fixed together from top to bottom;
the guiding and positioning wing (6) is conical, and the water stopping material layer (9) is in a truncated cone shape;
the water stopping device is used for stopping water when the water is pumped from the upper aquifer and/or the lower aquifer:
1) water stop for water pumping of upper aquifer
The water-stopping device is used for stopping water when the water pumping test is carried out on the upper aquifer and isolating the lower aquifer;
when in use, two rubber pads are respectively arranged under the upper pressure plate (10), the kelp is soaked and dried, then braided into a twisted braid shape with proper size and wound between the upper rubber pad and the lower rubber pad, the outside is wrapped by plastic, and finally, an iron wire is screwed down to form a water stopping material layer (9); then the water-stopping device is placed at a water-stopping position by a steel wire rope or a drill rod, the water-stopping position is a reducing position of a well pipe, an upper pressure plate (10) presses a water-stopping material downwards under the action of a counterweight rod (8), a lower thrust pressure plate (5) is connected below a water-stopping material layer (9), the lower thrust pressure plate (5) plays a role in pushing, the water-stopping material is compressed together, and the water-stopping material expands when meeting water, so that the purposes of separating an upper water-containing layer and a lower water-containing layer and sealing water stopping are achieved;
2) water stop for pumping water from lower aquifer
The water-stopping device is used for stopping water when the lower aquifer is pumped, and isolating the upper aquifer; when the lower part pumps water, the water stopping device needs to be combined with a pumping device and is put into a well together, so that the purposes of stopping water and pumping water are achieved;
the upper pressure plate (10) is provided with a through hole for a cable and a submersible pump pipe and is connected with a pump pipe flange, when the device is used, the upper pressure plate (10) is connected with the pump pipe, two rubber pads are arranged below the upper pressure plate, kelp is soaked and dried, then the kelp is braided into a twisted braid shape with proper size and wound between the upper rubber pad and the lower rubber pad, the exterior of the kelp is wrapped by plastic, and finally the kelp is screwed by an iron wire to form a water stopping material layer; then put down to the stagnant water position, go into simultaneously that the observation pipe (12) of ventilating, go up pressure disk (10) and push down the stagnant water material under immersible pump and pump line gravity effect, thrust pressure disk (5) play the top and push away the effect, compress tightly the stagnant water material jointly, the stagnant water material meets water inflation to reach upper portion aquifer and lower part aquifer of isolation and seal the stagnant water and draw water the purpose.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610731248.4A CN106149664B (en) | 2016-08-26 | 2016-08-26 | Water stop device in layered water pumping pipe |
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| CN201610731248.4A CN106149664B (en) | 2016-08-26 | 2016-08-26 | Water stop device in layered water pumping pipe |
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| CN106149664B true CN106149664B (en) | 2020-02-04 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107655719B (en) * | 2017-09-12 | 2020-06-09 | 昆明京诚检测技术有限公司 | Sampling device for underground water pollution monitoring |
| CN108119134B (en) * | 2017-12-14 | 2023-12-19 | 青海煤炭地质一0五勘探队 | Hydrogeology probing same diameter two-time pumping test device |
| CN108590644A (en) * | 2018-04-10 | 2018-09-28 | 辽宁省水利水电勘测设计研究院有限责任公司（原名称为辽宁省水利水电勘测设计研究院） | Heavy caliber test well is layered bailing test device and layering pumping 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 |
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Inventor after: He Xin Inventor after: Zhuang Dingyuan Inventor after: Liu Xiaoxi Inventor after: Huang Wenlong Inventor after: Du Maosen Inventor after: Zhang Rui Inventor after: Yao Wenyong Inventor after: Hao Guoli Inventor after: Gao Hongqiang Inventor after: Fu Yongshe Inventor after: Yu Jiancong Inventor after: Li Guomin Inventor after: Zhang Qingzhou Inventor after: Li Jinrui Inventor after: Lu Yan Inventor before: He Xin Inventor before: Zhuang Dingyuan Inventor before: Liu Xiaoxi Inventor before: Huang Wenlong Inventor before: Du Maosen Inventor before: Zhang Rui Inventor before: Yao Wenyong Inventor before: Hao Guoli Inventor before: Gao Hongqiang Inventor before: Fu Yongshe Inventor before: Yu Jiancong Inventor before: Li Guomin Inventor before: Zhang Qingzhou Inventor before: Li Jinrui Inventor before: Lu Yan |
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