Plugging filler for hole sealing of exploration drill hole and production equipment of plugging filler

Abstract

The utility model belongs to the field of exploration drilling hole sealing, and discloses a plugging filler for exploration drilling hole sealing, which is made by wrapping a filler with a water-soluble film. Compared with cement (sand) slurry hole sealing, the hole sealing device has the advantages of improving the hole sealing quality, saving the cost, shortening the construction period, being green and environment-friendly and the like; compared with common clay ball hole sealing, the problem that the clay ball expands before sinking into the bottom of the exploration drill hole can be solved; in addition, the smooth surface of the water-soluble film can also improve the flowability of the plugging filler, the plugging filler can be directly poured into the exploration drill hole through the funnel, the hole sealing quality is improved, and the construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of exploration drilling hole sealing, concretely is a kind of exploration drilling hole sealing and its production equipment for plugging filler. BACKGROUND

[0002] In engineering survey, especially directional drilling pipeline survey, water conservancy and hydropower project survey, port river channel survey etc. require to seal exploration drilling hole. The most commonly used sealing process includes cement (sand) grout sealing, clay ball sealing etc. Cement (sand) grout needs to be prepared on site, and the working efficiency is low, the cost is high, there is mud pollution, and the hydration reaction of cement in arm mud is very slow, the volume shrinks when cement coagulates, and the adhesion with hole wall rock-soil body is weak, when the bottom pressure is larger, water gushing and sand gushing, slurry running and slurry leakage etc. perforation accidents may occur. Clay ball sealing utilizes the characteristics of clay water absorption and expansion, and is well adhered with hole wall rock-soil body, but clay ball often absorbs water and expands before sinking into the bottom of exploration drilling hole, resulting in local hollow, and there are perforation risk and hidden trouble of later settlement.

[0003] In view of the above situation, the present application provides a kind of exploration drilling hole sealing for plugging filler to solve the above problems. CONTENT OF UTILITY MODEL

[0004] The utility model aims at solving the problem that the existing clay ball sealing appears clay ball absorbing water and expanding before sinking into the bottom of exploration drilling hole, resulting in local hollow, and there are perforation risk and hidden trouble of later settlement. Therefore, the utility model provides a kind of exploration drilling hole sealing for plugging filler and its production equipment.

[0005] The utility model solves the technical problems by adopting the following technical solutions:

[0006] A kind of exploration drilling hole sealing for plugging filler is provided, and the plugging filler is made of water-soluble film wrapped filler.

[0007] In a preferred embodiment, the filler is one of clay ball, micro-expansion cement powder and chemical plugging agent;The clay ball adopts dry clay ball with particle size of 2mm-40mm;The chemical plugging agent adopts water-soluble polyurethane.

[0008] In a preferred embodiment, the water-soluble film is made of water-soluble polymer material, and the film thickness is 10 μm-200 μm. Preferably, it is any one of polyvinyl alcohol water-soluble film, polyacrylamide water-soluble film and polyethylene glycol water-soluble film.

[0009] In a preferred embodiment, the size of the plugging filler is 1 / 8-1 / 3 of the diameter of exploration drilling hole, and preferably 1 / 6-1 / 4 of the diameter of exploration drilling hole.

[0010] Also provided is a production device for producing the plugging material for sealing the exploration drill hole, comprising an automatic water-soluble film packaging machine, and the plugging material is a bagged product packaged by the automatic water-soluble film packaging machine.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] Compared with the cement (sand) slurry sealing hole, the utility model has the advantages of improving sealing quality, saving cost, shortening construction period, green environmental protection and the like; compared with the ordinary clay ball sealing hole, the utility model can eliminate the problem that the clay ball has already expanded before sinking into the bottom of the exploration drill hole; in addition, the smooth surface of the water-soluble film can also improve the fluidity of the plugging material, which can be directly poured into the exploration drill hole through the funnel, thereby improving the sealing quality and improving the construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor, wherein:

[0014] Figure 1 It is the first structure schematic view of the plugging material for sealing the exploration drill hole provided by the embodiment one;

[0015] Figure 2 It is the second structure schematic view of the plugging material for sealing the exploration drill hole provided by the embodiment one.

[0016] In the drawings, the component list represented by each sign is as follows:

[0017] Plugging material 1, clay ball 1.1, water-soluble film 1.2. DETAILED DESCRIPTION

[0018] It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described in the following by combining with the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the utility model.

[0020] In addition, the technical solutions among various embodiments can be combined with each other, but the combination of the technical solutions should be based on the realization of the ordinary skilled in the art, and when the combination of the technical solutions appears contradictory or unachievable, it should be considered that the combination of the technical solutions does not exist and is not within the protection scope required by the utility model.

[0021] Embodiment one

[0022] The embodiment provides a plugging filler 1 for sealing a prospecting drill hole, as shown in the accompanying drawings, which is made by wrapping the filler 1.1 with a water-soluble film 1.2. The filler 1.1 in the embodiment is a clay ball, and the water-soluble film 1.2 is made of a water-soluble polymer material, and the thickness of the water-soluble film is controlled to be 10-200 microns. Figure 1

[0023] The dissolving time of the water-soluble film is related to the water temperature, the film thickness, the material of the film, and the construction process parameters (such as the depth of the prospecting drill hole). The material and the thickness of the water-soluble film are adjusted according to the depth of the prospecting drill hole and the mud density in the prospecting drill hole, so that the clay ball can sink to the bottom of the prospecting drill hole, and there is still a construction time reserve of 3-10 minutes. Based on this, the water-soluble film in the embodiment is preferably any one of a polyvinyl alcohol water-soluble film, a polyacrylamide water-soluble film, and a polyethylene glycol water-soluble film. The water temperature is 18℃±3℃, and the dissolving time of the water-soluble film is 3-10 minutes, which is achieved by selecting the material and the thickness of the water-soluble film.

[0024] The clay ball in the embodiment is a dry clay ball with a particle size of 2-40 mm, which can be made by a dry process or a wet process and then dried. The clay ball is a commonly used plugging material for sealing a prospecting drill hole, and the commonly used sizes of the clay ball are 2-3 mm, 5-6 mm, 6-10 mm, 1-3 cm, and 2-4 cm.

[0025] In specific implementation, the clay ball with a proper size can be selected according to the size of the prospecting drill hole. In one embodiment, as shown in the accompanying drawings, a clay ball with a smaller size can be selected, and a plurality of clay balls are wrapped in the water-soluble film. In another embodiment, as shown in the accompanying drawings, a clay ball with a larger size can be selected, and only one clay ball can be wrapped in the water-soluble film. Figure 1 Figure 2 The clay ball in the embodiment is sealed and packaged by the water-soluble film, which can eliminate the problem that the clay ball absorbs water and swells before sinking to the bottom of the prospecting drill hole, and can also make the plugging filler form a smooth surface and improve the flowability of the plugging filler, so that the plugging filler can be directly poured into the prospecting drill hole through a funnel.

[0026] Preferably, the size of the plugging filler in the embodiment is 1 / 8-1 / 3 of the diameter of the prospecting drill hole, and preferably 1 / 6-1 / 4 of the diameter of the prospecting drill hole. ​​

[0027] The plugging filler of the embodiment is a bagged product packaged by a water-soluble film automatic packaging machine, and preferably is a plugging filler with equal length-width ratio, which can improve the flowability of the plugging filler when poured into the exploration borehole. The packaging method of the water-soluble film automatic packaging machine is directly applicable to the prior art, and thus is not described herein again. For details, refer to the packaging of a dishwashing block (when the filler is a chemical plugging agent, refer to the packaging of laundry gel).

[0028] Embodiment Two

[0029] The difference from the embodiment one is that the filler is micro-expansion cement powder.

[0030] Embodiment Three

[0031] The difference from the embodiment one is that the filler is a chemical plugging agent. The chemical plugging agent of the embodiment is water-soluble polyurethane. The water-soluble polyurethane is a high-molecular compound chemically synthesized from toluene diisocyanate and trihydroxy water-soluble polyether, which expands when meeting water and is solidified with surrounding sand and stone into an elastic solidified body, thereby achieving the purpose of water plugging.

[0032] The above only describes the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process conversion, or direct or indirect application in other related technical fields, which is made according to the content of the present application, is also included in the patent protection scope of the present application.

Claims

1. A sealing filler for sealing exploration boreholes, characterized in that: The sealing filler is made of filler encapsulated by a water-soluble film.

2. The sealing filler for exploration borehole sealing according to claim 1, characterized in that: The filler is one of clay balls, micro-expansion cement powder, or chemical sealing agent.

3. The sealing filler for exploration borehole sealing according to claim 2, characterized in that: The clay balls used are dry clay balls with a particle size of 2mm to 40mm.

4. The sealing filler for exploration borehole sealing according to claim 2, characterized in that: The chemical plugging agent is a water-soluble polyurethane.

5. The sealing filler for exploration borehole sealing according to claim 1, characterized in that: The water-soluble membrane is made of water-soluble polymer material and has a thickness of 10μm to 200μm.

6. The sealing filler for exploration borehole sealing according to claim 5, characterized in that: The water-soluble film is any one of polyvinyl alcohol water-soluble film, polyacrylamide water-soluble film, and polyethylene glycol water-soluble film.

7. The sealing filler for exploration borehole sealing according to claim 1, characterized in that: The size of the sealing filler is 1 / 8 to 1 / 3 of the diameter of the exploration borehole.

8. A production equipment for sealing filler for exploration boreholes, characterized in that: The equipment is used to produce the sealing filler for sealing exploration boreholes according to any one of claims 1 to 7, the production equipment including a water-soluble film automatic packaging machine, wherein the sealing filler is a bagged product packaged on the water-soluble film automatic packaging machine.

Images