A simple and portable drill rig and drill pipes used in conjunction therewith

Abstract

The present invention discloses a simple and portable drilling rig, which includes a gear-type pneumatic motor, a reducer, a power shaft, a rotary sealing device and a drill pipe used in a supporting manner. The output end of the gear-type pneumatic motor is in meshing transmission connection with the reducer. One end of the power shaft is connected to the reducer, and the other end is in threaded connection with the drill pipe. On one side of the gear-type pneumatic motor, there are respectively provided an air pump air supply interface, a pneumatic motor air inlet and a blowing port. The rotary sealing device includes a "U"-shaped rotary sealing housing, a sealing washer and a skeleton oil seal. On both sides of the rotary sealing housing, there are provided rotary sealing air inlets, and the rotary sealing air inlets are communicated with the inner cavity of the power shaft. The rotary sealing air inlets are communicated with the blowing port through an air pipeline. The beneficial effects of the present invention are as follows: eliminating the bottleneck of low production efficiency of manual Luoyang shovel drilling, effectively improving the drilling efficiency, and ensuring the operation benefits of 3D projects; stabilizing the drilling price, reducing costs and increasing efficiency.

Description

Technical Field

[0001] The present invention relates to the field of petroleum exploration equipment, in particular to a simple and portable drilling rig and a matching drill rod. Background Art

[0002] Under the premise of the rapid development of oil and gas seismic exploration technology, the focus of seismic exploration business will gradually shift from two-dimensional to three-dimensional, which has better and more advanced data.

[0003] In the Loess Plateau area, the traditional drilling method mostly uses manual Luoyang shovels. This method is not only inefficient, but also has a maximum daily drilling capacity of about 150 meters per person. Summary of the Invention

[0004] In view of this, the main purpose of the present invention is to provide a simple drilling rig suitable for large-scale drilling in loess plateau areas.

[0005] Light drilling rig and its matching drill rod.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] A simple and portable drilling rig is characterized in that it includes a gear-type pneumatic motor, a reducer, a power shaft, a rotary sealing device and a supporting drill rod, the output end of the gear-type pneumatic motor is meshed and connected to the reducer, one end of the power shaft is connected to the reducer, and the other end is threadedly connected to the drill rod, one side of the gear-type pneumatic motor is respectively provided with an air pump air supply interface, an air motor air inlet and an air blow port, the air pump air supply interface is connected to an external air pump air supply, and is connected to the air motor air inlet and the air blow port through an air pipeline, wherein the air source passage between the air pump air supply interface and the air motor air inlet is used to provide a power source for the gear-type pneumatic motor, the rotary sealing device is provided at the connecting end of the power shaft and the reducer, and the rotary sealing device includes a "U" sleeved on the power shaft A rotary seal housing, sealing gaskets arranged on both sides of the upper open end of the rotary seal housing and a skeleton oil seal arranged on both sides of the lower open end of the rotary seal housing, a rotary seal air inlet is opened on both sides of the rotary seal housing, the rotary seal air inlet is communicated with the inner cavity of the power shaft, the rotary seal air inlet is communicated with the air blowing port through an air pipeline, wherein the air source passage between the air pump air supply interface, the air blowing port, the rotary seal air inlet and the inner cavity of the power shaft is used to provide an unloading air source to the inside of the drill pipe used in conjunction with it.

[0008] As a preferred technical solution, it also includes a "Y"-shaped sealing ring. The upper and lower sides of the rotary seal air inlet on the rotary seal housing are filled with "Y"-shaped sealing rings, and the "Y"-shaped sealing ring is a "Y"-shaped nitrile rubber sealing ring.

[0009] As a preferred technical solution, it further includes a deep groove bearing. The deep groove bearing is sleeved on the power shaft, and its outer end face is covered by a rotating seal housing and sealed on one side by a skeleton oil seal.

[0010] As a preferred technical solution, the contact end filling hole between the deep groove bearing and the skeleton oil seal is sealed with a retaining ring.

[0011] As a preferred technical solution, it further includes an operating handle. The operating handle is a round handle and is fixed above the gear type pneumatic motor.

[0012] As a preferred technical solution, both the operating handle and the rotating seal housing are made of aluminum, and the power shaft is made of iron.

[0013] A drill pipe for supporting use, characterized in that: the drill pipe body is made of aluminum material, a drill pipe joint is provided at the connection end of the drill pipe and the power shaft, the drill pipe joint is threadedly connected to the power shaft, a connecting sleeve is sleeved on the drill pipe below the drill pipe joint, the connecting sleeve is made of iron, the contact end between the connecting sleeve and the drill pipe joint is welded and fixed, and the connecting sleeve is sleeved on the drill pipe through a high-temperature extrusion process.

[0014] The beneficial effects of the present invention are as follows: 1. Suitable for two-person or single-person operation; 2. Weight: <20KG; 3. Drilling depth: not less than 20 meters; 4. Eliminate the bottleneck of low production efficiency of manual Luoyang shovel drilling, effectively improve the drilling efficiency, and ensure the operation benefits of three-dimensional projects; 5. Eliminate the risk of no successors for drillers in manual Luoyang shovel drilling, and provide strong guarantee for the excitation link of later three-dimensional seismic exploration work on the loess tableland; 6. Stabilize the drilling price, reduce costs and increase efficiency. Brief Description of the Drawings

[0015] Figure 1 It is the front view of a simple and portable drilling rig and the drill pipe for supporting use according to the present invention;

[0016] Figure 2 It is Figure 1 the structural schematic diagram of the upper half part in

[0017] Figure 3 It is Figure 1 the structural schematic diagram of the lower half part in

[0018] Figure 4 It is Figure 1 the top view of

[0019] In the figure: 1-geared pneumatic motor, 1-1-air pump air supply interface, 1-2-pneumatic motor air inlet, 1-3-air blowing port, 2-reducer, 3-power shaft, 4-rotary sealing device, 4-1-rotary seal housing, 4-2-sealing gasket, 4-3-skeleton oil seal, 4-4-rotary seal air inlet, 4-5-"Y" type sealing ring, 4-6-deep groove bearing, 5-drill pipe, 5-1-drill pipe joint, 5-2-connecting sleeve, 6-operating handle. DETAILED DESCRIPTION

[0020] In order to provide a further understanding and appreciation of the structural features and effects achieved by the present invention, a detailed description is provided with reference to preferred embodiments and accompanying drawings as follows:

[0021] The embodiment of the present invention provides a simple and portable drilling rig, such as Figures 1 to 4 As shown, the simple and portable drilling rig includes a geared pneumatic motor 1, a reducer 2, a power shaft 3, a rotary sealing device 4 and a matching drill rod 5. The output end of the geared pneumatic motor 1 is meshed and connected to the reducer 2. One end of the power shaft 3 is connected to the reducer 2, and the other end is threadedly connected to the drill rod 5. An air pump supply interface 1-1, an air motor air inlet 1-2 and an air blowing port 1-3 are respectively provided on one side of the geared pneumatic motor 1. The air pump supply interface 1-1 is connected to an external air pump for air supply and is connected to the air motor air inlet 1-2 and the air blowing port 1-3 through an air pipeline. The air source passage between the air pump supply interface 1-1 and the air motor air inlet 1-2 is used to provide a power source for the geared pneumatic motor 1. The rotary sealing device 4 is provided at the connecting end of the power shaft 3 and the reducer 2. The rotary sealing device 4 includes a "U" sleeved on the power shaft. A rotary seal housing 4-1, sealing gaskets 4-2 provided on both sides of the upper open end of the rotary seal housing 4-1 and a skeleton oil seal 4-3 provided on both sides of the lower open end of the rotary seal housing 4-1, a rotary seal air inlet 4-4 is provided on both sides of the rotary seal housing 4-1, the rotary seal air inlet 4-4 is communicated with the inner cavity of the power shaft 3, the rotary seal air inlet 4-4 is communicated with the air blowing port 1-3 through an air pipeline, wherein the air source passage between the air pump air supply interface 1-1, the air blowing port 1-3, the rotary seal air inlet 4-4 and the inner cavity of the power shaft 3 is used to provide an air source for unloading soil to the inside of the drill pipe 5 used in conjunction with it.

[0022] In this embodiment, a "Y"-shaped sealing ring 4-5 is also included. The upper and lower sides of the rotary sealing air inlet 4-4 on the rotary sealing housing 4-1 are filled with "Y"-shaped sealing rings 4-5, and the "Y"-shaped sealing rings 4-5 are "Y"-shaped nitrile rubber sealing rings.

[0023] In this embodiment, a deep groove bearing 4-6 is further included. The deep groove bearing 4-6 is sleeved on the power shaft 3, and its outer end surface is covered by a rotary sealing shell 4-1, and one side is sealed by a skeleton oil seal 4-3.

[0024] In this embodiment, the contact end filling hole between the deep groove bearing 4-6 and the skeleton oil seal 4-3 is sealed with a retaining ring 4-7.

[0025] In this embodiment, it further includes an operating handle 6. The operating handle 6 is a circular handle and is fixedly arranged above the gear type pneumatic motor 1.

[0026] In this embodiment, both the operating handle 6 and the rotating seal housing 4-1 are made of aluminum, and the power shaft 3 is made of iron.

[0027] A drill pipe for supporting use. The drill pipe body is made of aluminum material. A drill pipe joint 5-1 is provided at the connection end of the drill pipe 5 and the power shaft 3. The drill pipe joint 5-1 is threadedly connected to the power shaft 3. A connecting sleeve 5-2 is sleeved on the drill pipe 5 at the lower end of the drill pipe joint 5-1. The connecting sleeve 5-2 is made of iron. The contact end of the connecting sleeve 5-2 and the drill pipe joint 5-1 is fixedly welded. The connecting sleeve 5-2 is sleeved on the drill pipe 5 through a high-temperature extrusion process.

[0028] The specific working principle of this device is as follows: Select an air compressor as the gas station for centralized gas supply, which can simultaneously supply gas sources for multiple drilling rigs within a range of 500 - 1000M for exploration drilling. When conducting exploration drilling work, first screw a supporting drill pipe 5 tightly with a drill pipe joint 5-1 at one end of the power shaft 3. (The length of one drill pipe is about 60cm - 80cm). Here, it should be noted that due to the terrain restrictions in the loess tableland area, most iron drill pipes are not suitable because of their large mass. During exploration operations, at least 10 drill pipes are required for one borehole. In order to reduce labor intensity, iron drill pipes are not applicable. At the same time, the supporting drill pipes used are made of aluminum. Since it is difficult to weld aluminum drill pipes with drill pipe joints (made of iron) (due to the large differences in the thermal expansion coefficient and melting point between aluminum and iron, and aluminum easily forms an aluminum oxide film, making it difficult to perform fusion welding), connecting sleeves 5-2 are sleeved at both joint ends of the supporting drill pipes, and the connecting sleeves 5-2 made of iron are fixedly welded to the drill pipe joints 5-1. After installing one drill pipe 5, the gear type pneumatic motor 1 works and drives the power shaft to rotate through the reducer 2. The power shaft then drives the drill pipe to drill holes. At the same time, the gas source is supplied through the gas supply interface 1-1 of the air pump, the air blowing port 1-3, the rotating seal air inlet 4-4, the inner cavity of the power shaft 3 to the inside of the supporting drill pipe 5. When the compressed air in the inner diameter of the drill pipe flows out from the liquid outlet hole of the drill bit, the diameter of the formed hole serves as the channel for the compressed air to carry the rock debris out of the ground. When one drill pipe 5 reaches the bottom, turn the connection end of the power shaft 3 and the drill pipe 5, pull out the power shaft 3 and then connect the next drill pipe to continue the drilling work.

[0029] This technical solution is applicable to operation by two persons or a single person; weight: <20 KG; drilling depth: not less than 20 meters; it eliminates the bottleneck of low production efficiency of manual drilling with Luoyang shovels, effectively improves the drilling efficiency, and guarantees the operation benefits of 3D projects; it eliminates the risk of no successors for drillers using manual Luoyang shovels, and provides strong guarantee for the excitation link of later 3D seismic exploration work in the loess tableland; it stabilizes the drilling price, reduces costs and increases efficiency.

[0030] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, various changes and improvements will occur to the present invention, and all these changes and improvements fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A simple and portable drilling rig, characterized in that: The invention comprises a gear-type pneumatic motor, a reducer, a power shaft, a rotary sealing device and a supporting drill pipe. The output end of the gear-type pneumatic motor is meshed and connected to the reducer. One end of the power shaft is connected to the reducer, and the other end is threadedly connected to the drill pipe. An air pump air supply interface, an air motor air inlet and an air blowing port are respectively opened on one side of the gear-type pneumatic motor. The air pump air supply interface is connected to an external air pump for air supply, and is connected to the air motor air inlet and the air blowing port through an air pipeline. The air source passage between the air pump air supply interface and the air motor air inlet is used to provide a power source for the gear-type pneumatic motor. The sealing device is provided at the connection end between the power shaft and the reducer. The rotary sealing device includes a "U"-shaped rotary sealing housing on which the power shaft is sleeved, sealing gaskets provided on both sides of the upper open end of the rotary sealing housing, and skeleton oil seals provided on both sides of the lower open end of the rotary sealing housing. A rotary sealing air inlet is provided on both sides of the rotary sealing housing. The rotary sealing air inlet is communicated with the inner cavity of the power shaft. The rotary sealing air inlet is communicated with the air blowing port via an air pipeline. The air source passage between the air pump air supply interface, the air blowing port, the rotary sealing air inlet and the inner cavity of the power shaft is used to provide an air source for unloading soil to the interior of the drill pipe used in conjunction with the rotary sealing housing. It also includes a deep groove bearing, which is sleeved on the power shaft, with its outer end surface covered by a rotating sealing shell and one side sealed by a skeleton oil seal; The gear-type pneumatic motor works and drives the power shaft to rotate through the reducer, which in turn drives the drill rod to drill holes. At the same time, the air source passes through the air pump air supply interface, the air blowing port, the rotary seal air inlet, and the inner cavity of the power shaft to the inside of the supporting drill rod. When the compressed air in the inner diameter of the drill rod flows out from the fluid outlet of the drill bit, the diameter of the hole formed serves as a channel for the compressed air, carrying the rock cuttings out of the ground. It also includes a "Y"-shaped sealing ring. The upper and lower sides of the rotary seal air inlet on the rotary seal housing are filled with "Y"-shaped sealing rings, and the "Y"-shaped sealing ring is a "Y"-shaped nitrile rubber sealing ring.

2. A simple and portable drilling rig according to claim 1, characterized in that: The contact end filling hole between the deep groove bearing and the skeleton oil seal is sealed with a retaining ring.

3. The simple and portable drilling rig according to claim 1, characterized in that: The utility model also comprises an operating handle, which is a round handle and is fixed on the upper part of the gear-type pneumatic motor.

4. A simple and portable drilling rig according to claim 3, characterized in that: The operating handle and the rotary sealing shell are both made of aluminum, and the power shaft is made of iron.

5. The simple and portable drilling rig according to claim 4, characterized in that: The drill rod body is made of aluminum material. A drill rod joint is provided at the connecting end of the drill rod and the power shaft. The drill rod joint is threadedly connected to the power shaft. A connecting sleeve is sleeved on the drill rod at the lower end of the drill rod joint. The connecting sleeve is made of iron. The connecting sleeve is welded and fixed to the contact end of the drill rod joint. The connecting sleeve is sleeved on the drill rod through a high-temperature extrusion process.

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