JPH05321556A - Underground crushing method - Google Patents

Abstract

PURPOSE:To make it possible to form a large crushing area by inserting a hydraulic power having a projectable mixing rod outward in a radial direction into the bottom of a hole made in the ground surface and performing various kinds of operations. CONSTITUTION:A hole is made underground and a hydraulic monitor M having a mixing rod 10 that can project outward in a radial direction is inserted into the bottom of the drilled hole. Then, a high pressure water pump device 13 and a compressor device 12 are driven to spray water and rotate a hydraulic monitor M while the monitor M is moved upward with a wire 3, thereby forming a cylinder-shaped crushing area. Then, the hydraulic monitor M is processed so that it may be positioned on the bottom of the hole. Water is sprayed from the tip of the mixing rod 10 extended by driving a hydraulic pump 11 while the hydraulic monitor is rotated at the same time and moved upward, thereby forming a cylinder-shaped crushing area with a large radius. After the formation of the crushing area, the mixing rod 10 is housed in its radial direction so that the hydraulic monitor M may be pulled up.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground crushing method for crushing earth and sand at a certain depth in the ground.

[0002]

2. Description of the Related Art For example, when oil is pumped up from an oil sand or a heavy oil tank, the oil sand is formed in layers in the ground, and at the place where the oil sand layer appears on the surface of the earth, it is called by hand digging. The oil sands can be collected and the oil separated. However, in order to take out oil from the oil sand layer located relatively deep in the ground, a certain part of the oil sand layer in the ground is crushed, and salt water is put into the crushed part and an alternating current is applied. The sand and oil are separated by the electric preheating method of passing through and the steam heating method of injecting steam, and the separated oil is pumped up. Therefore, in order to make the oil pumping work efficient, it is preferable to crush the oil sand layer portion as much as possible. In particular, since the oil sand layer extends in the lateral direction (width direction) as compared with the vertical direction, it is effective to crush it in the lateral direction as much as possible.

On the other hand, in order to improve the ground or to construct concrete piles in the ground, a pipe is inserted into a hole excavated in the ground, and a nozzle provided in the pipe in the lateral direction of the monitor. A technique for injecting water at high speed from the water and pulling it while rotating the pipe to form a cylindrical crushed portion in the ground is known, for example, Japanese Patent Publication No. 54-41001 and US Pat. No. 404758. , US Patent No. 4
Many are known in the specification of 084448, Japanese Patent Publication No. 57-38728, Japanese Patent Publication No. 57-55894. However, even if such a technique is applied to the crushing of an oil sand layer, the flight distance of water injection is limited, and the radius of the crushed cylindrical portion is about 1 m at the maximum. Therefore, many holes must be drilled from the ground surface to form a wide crushed portion in the lateral direction. For example, in order to crush an oil sand layer 500 m below ground, many holes must be drilled from the ground surface. Drilling is uneconomical.

Further, in Japanese Patent Laid-Open Nos. 50-107714 and 57-51327, a technique is provided in which a member protruding in the radial direction is provided, and high pressure water is jetted from the tip of the member to expand the crushing area. Is disclosed. However, in the former case, since the stirring blade is provided in advance, unnecessary relatively large holes are opened near the surface of the ground that does not need to be crushed, which is wasteful, and the stirring blade itself is radially outward. Since it does not project too much, the crushing area is limited. And in the latter, since it is applied to the soft ground, there is little influence by the soil when expanding the hollow stirring blade, but in the ground such as an oil sand layer, it is difficult to expand the stirring blade due to the effect of the soil. Yes,
It cannot be used.

[0005]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to form a sufficiently large crushing area in a predetermined underground area even on the ground such as an oil sand layer, and yet to have a monitor large enough to be inserted on the ground surface. The purpose of the present invention is to provide a method of crushing underground, which requires only the formation of holes.

[0006]

According to the underground crushing method of the present invention, a hole is bored in the ground, and a hydraulic power monitor having a stirring rod capable of protruding radially outward is inserted at the bottom of the hole, Rotating the hydraulic monitor and moving it upwards while ejecting water radially outward from the hydraulic monitor to form a cylindrical fracturing zone, then lowering the hydraulic monitor to locate it at the bottom of the hole and place the stirring rod. It is projected to the projecting position in the radially outward direction, and while the water is jetted radially outward from the tip of the projecting stirring rod, the hydraulic power monitor is rotated and moved upward to form a cylindrical crushing region with a large radius. Then, the agitation rod is stored in the storage position radially inward, and the hydraulic power monitor is pulled up.

[0007]

[Explanation of Operation and Effect] Therefore, first, a hole was drilled in the ground by using an earth auger or a drill bit and / or a water jet nozzle provided at the lower end of the hydraulic monitor, and the underwater monitor was inserted to the bottom of the hole. Then, the water is sprayed outward from the hydraulic power monitor in a radial direction to pull up while rotating the hydraulic power monitor so as to crush the ground into a cylindrical shape. In this way, first, a crushing area having a small radius is formed in the predetermined area. Next, the hydraulic power monitor is lowered to project the stirring rod. At this time, since the stirring rod projects in the ground that has already been crushed, the projecting operation can be easily performed. Next, while injecting water from the tip of the stirring rod, the underwater monitor is rotated and pulled up to form a crushing region having a large radius. As described above, since the hydraulic power monitor always moves up when crushing the ground, the slurry does not accumulate in the lower part at the time of crushing and can be raised to the ground surface and removed. Further, the crushed earth and sand during crushing work does not reduce the jetting energy of water.

In particular, when oil is separated from the oil sand, the first crushing area is sufficiently stirred when the hydraulic power monitor is moved a second time, so that the oil is preferably separated from the oil sand.

As described above, according to the present invention, a hole into which a hydraulic power monitor can be inserted may be bored on the ground surface, and a crushing area can be formed in a sufficiently wide area in the ground. In addition, since the hydraulic power monitor is always activated during crushing, slime can be easily discharged and crushing efficiency can be improved.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows that the apparatus embodying the present invention is boring a hole H from the surface E. The working machine, generally designated by reference numeral 1, is provided with a post 2 that can be lifted and lowered.
Are erected as shown. The wire 3 is hung from the wire 3 along the post 2, and the wire 3 is configured so that the hanger 4 can be moved up and down along the post 2. A swivel joint 5 is provided on the lower part of the hanger 4, and a post 2 is provided.
It is provided so as to be vertically movable along the post 2 by being engaged with the guide 6 provided on the. A hollow rod or pipe P is attached to the swivel joint 5, and the upper end of the pipe P is provided with a rotating device 6 provided near the lower end of the post 2.
It is rotatably gripped by. A hydraulic power monitor M to be described later is attached to the lower end of the pipe P.

On the other hand, on the surface of the earth, a hydraulic pump device 11 for supplying pressure oil to a cylinder unit for operating a stirring rod 10 of a hydraulic power monitor M, which will be described later, and crushing as shown in the above-mentioned prior art. A compressor device 12 for air jets wrapping around the water jet for water and a high-pressure pump device 13 for water jet are provided, and a hydraulic line L1 and an air line L2 from these devices 11, 12, and 13 are provided. The high-pressure water line L3 and the high-pressure water line L3 are connected to a line (not shown) provided in the pipe P via a swivel joint 5, and are also connected to a hydraulic power monitor M.

In operation, a drill bit and a fluid jet nozzle for drilling are provided at the lower end of the hydraulic monitor 10 which will be described later, and when the pipe P is rotated by the rotating device 6, the lower part of the hydraulic monitor M is drilled. Then, the pipe P moves downward while piercing the hole H by moving the wire 3 downward. When the upper end of the pipe P reaches the vicinity of the rotating device 6 as shown, the swivel joint 5 and the pipe P are disconnected, the wire 3 is wound up, and the lower end of another pipe is connected to the upper end of the pipe P. , And the upper ends of the other pipes are connected to the swivel joint 5, and the deep holes H are sequentially drilled by the same operation as described above. In this way, a predetermined area, for example, a layer S of oil sand (FIG. 2) is drilled.

When the hole H is drilled to a predetermined position as shown in FIG. 2, the high-pressure water pump device 13 and the compressor device 12 are activated to radially inject water from the hydraulic power monitor M into the water jet J1. While injecting, the rotating device 6 is operated to rotate the hydraulic power monitor M, and the wire 3 moves the hydraulic power monitor M upward. As a result, the water jet J1 forms a cylindrical crushing region E1 having a radius R1 corresponding to the flight distance. Set the hydraulic power monitor M to the specified construction distance D
It is moved upward by a distance (preferably a distance substantially corresponding to the thickness of the oil sand layer S).

When the cylindrical crushing area E1 having the height D and the radius R1 is formed in this manner, the hydraulic power monitor M is moved downward to the lower end of the hole H, as shown in FIG. The hydraulic pump device 11 is actuated to cause the stirring rod 10 to project radially outward as shown. This stirring rod 1
The projection length of 0 is the flight distance of the water jet J1, that is, the radius R1.
The length is almost the same as or slightly shorter than. A nozzle is provided at the protruding end of the stirring rod 10.

Then, as described with reference to FIG. 2, the hydraulic power monitor M is moved upward while rotating, but this time, as shown in FIG. 4, the water jet J2 is jetted from the tip of the stirring rod 10. As a result, a cylindrical crushing area E2 having a large radius R2 is formed, and the crushed portion, for example, oil sand, is stirred by the stirring rod 10.

When the cylindrical crushing area E2 having a large radius is thus formed as shown in FIG. 5, the stirring rod 10 is housed in the position shown in FIG.
To complete the work.

FIGS. 6 and 7 are enlarged side views of the hydraulic power monitor M shown in FIG. An excavation bit 16 is provided at the lower end of the hydraulic power monitor M, and a water injection nozzle is provided in the bit 16 to contribute to the excavation work of the hole H. Therefore, the rotation of the hydraulic power monitor M causes the bit 16 to cut the bottom of the hole H, and the water jet J3.
However, it is designed to help the cutting work. A first nozzle N1 is provided at a position facing the diametrical direction of the intermediate portion of the hydraulic power monitor M, and the stirring rod 10 is inserted via the rotary drive unit 15 into the storage position shown in FIG. 6 and the projection shown in FIG. The stirring rod 10 is mounted so as to be rotatable between the positions, and a second nozzle N2 is provided at the tip of the stirring rod 10. This rotation work is performed by the pressure oil from the hydraulic pump device 11 by a cylinder device (not shown). The high pressure water is supplied to the first nozzle N1 when the stirring rod 10 is in the storage position shown in FIG. 6 by the switching valve (not shown), and the second nozzle N2 is in the projecting position shown in FIG. To be supplied to. Therefore, it is preferable that this switching valve be interlocked with the rotary drive unit 15.

FIG. 8 and FIG. 9 show another embodiment of the stirring rod of the hydraulic power monitor M. In this embodiment, the hydraulic cylinder 20 that is operated by the pressure oil from the hydraulic pump device 11 is used.
Is provided, and the tip of the piston 21 is connected to a ring-shaped block 22. This blot 22 has a pivot 23
One end of the first link 24 is pivotally attached via
The other end of the link 24 is pivotally connected to one end of a second link 26 at a pivot point 25, and the other end of the second link 26 is pivotally connected to a block 27 fixed to the main body of the hydraulic power monitor M at a pivot point 28. Has been done. Therefore, the first and second links 24, 2
The link device constituted by 6 can be moved between the storage position shown in FIG. 8 and the projecting position shown in FIG. 9 by supplying and removing pressure oil to the hydraulic cylinder 20.
Therefore, the link device composed of the first and second links 24, 25 constitutes a stirring rod. For example, as shown in the drawing, four sets are provided angularly 90 degrees apart, and a nozzle 30 is attached to each pivot point 25.

Therefore, the same operation as the above-mentioned embodiment can be performed.

[0021]

As described above, the present invention has the following excellent effects.

(1) Since the crushing work is performed when the hydraulic power monitor is moved upward, the work of discharging the slurry to the ground surface is easy, and the crushed ground does not significantly reduce the water injection energy.

(2) The crushing operation is sufficiently carried out by the crushing work twice, and the oil sand and the oil are efficiently separated.

(3) The stirring rod can be easily projected to the projecting position.

(4) It can be suitably used for the ground which is not relatively light such as oil sand.

[Brief description of drawings]

FIG. 1 is a side view of a device embodying the present invention showing a hole being drilled.

FIG. 2 is a side view showing a place where a stirring rod is at a storage position and a crushing operation is performed by water injection.

FIG. 3 is a side view showing a portion where a stirring rod is projected to a projecting position.

FIG. 4 is a side view showing a portion where the stirring rod is at the protruding position and is performing a crushing operation by water injection.

FIG. 5 is a side view showing a final crushing area.

FIG. 6 is a side view showing an embodiment of the hydraulic power monitor for carrying out the present invention, in which the stirring rod is in the storage position.

FIG. 7 is a side view showing the stirring rod of the hydraulic power monitor shown in FIG. 6 in a protruding position.

FIG. 8 is a side view showing another embodiment of the hydraulic power monitor showing the stirring rod in the storage position.

9 is a side view showing the stirring rod of FIG. 8 in a protruding position.

[Explanation of symbols]

 1 ... Working machine 2 ... Post 3 ... Wire 4 ... Hanging tool 5 ... Swivel joint 6 ... Rotating device 10 ... Stirring rod 11 ... Hydraulic pump device 12 ...・ Compressor device 13 ・ ・ ・ High-pressure pump device 15 ・ ・ ・ Rotation drive unit 16 ・ ・ ・ Drilling bit 20 ・ ・ ・ Hydraulic cylinder 21 ・ ・ ・ Piston 22 ・ ・ ・ Block 23 ・ ・ ・ Pivot point 24 ・ ・・ First link 25 ... pivot point 26 ... second link 27 ... block 28 ... pivot point 30 ... nozzle P ... pipe H ... hole M ... hydraulic power Monitor E ... Ground surface E1, E2 ... Crushing area N1, N2 ... Nozzle J1, J2, J3 ... Water injection L1, L2, L3 ... Line S ... Oil sand layer D ...・ Construction distance R1, R2 ... Radius

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Yoshida 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Kenji Nishi Kenji 2-chome, Moto-Akasaka, Minato-ku, Tokyo No. Kashima Construction Co., Ltd. (72) Inventor Takatobu Isobe 1-2-7 Moto-Akasaka Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Hidenobu Hamano 2-17-22 Akasaka, Minato-ku, Tokyo Within Canada Oil Sands Co., Ltd. (72) Inventor Yoichi Kume 2-17-22 Akasaka, Minato-ku, Tokyo Inside Canada Oil Sands Co., Ltd.

Claims (1)

[Claims] 1. A hydraulic power monitor in which a hole is drilled in the ground, a hydraulic power monitor having a stirring rod capable of protruding radially outward is inserted into the bottom of the hole, and water is jetted radially outward from the hydraulic power monitor. Rotating and moving upwards to form a cylindrical fracturing zone, then lowering the hydraulic monitor to the bottom of the hole and projecting the stirring rod in a radially outward projecting position, the projecting stirring Rotate the hydraulic monitor while moving water outward from the tip of the rod in the radial direction and move it upward to form a cylindrical crushing area with a large radius, and then store the stirring rod in the storage position radially inward. Underground crushing method characterized by pulling up the hydraulic power monitor.