A New Combined Drilling Tool Connecting Structure for Abnormal Drilling Plugging
A technology of combining drilling tools and connecting structures, which is applied to drill pipes, drill pipes, and earth-moving drilling and mining, etc., can solve the problems of long construction period, limited corrosion resistance strength of plugging effect, and complicated process, so as to improve drilling speed and reduce Drilling accident rate, good sealing effect
Inactive Publication Date: 2019-01-11
吴水平
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Problems solved by technology
It can be seen that the traditional sealing method has a cumbersome process and a long construction period. The sealing effect is limited by the length of the sealing tube and the corrosion resistance of the sealing tube. The disadvantages are obvious.
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[0014] Such as figure 1 As shown, a new type of combined drilling tool connection structure for plugging abnormal drilling. It includes a front connecting rod 1, a rear connecting rod 2, a butting retaining ring 3, a sealing sleeve 4 and a rubber sealing ring 5. The front connecting rod 1 is a cylindrical Structure, the front post 1 is provided with a through hole 6 in the rod body along the axial direction, and a convex ring 7 with a diameter larger than the diameter of the rod body of the front post 1 is protrudingly provided on the outer circle of the front end of the front post 1. The front end of the rod 1 is provided with a first threaded hole 8 for installing a drill bit, and a second threaded hole 9 is opened at the rear end of the front rod 1; the rear rod 2 is a cylindrical shape Structure, the rear rod 2 along the axial direction is provided with a through hole 6 inside the rod body, the end of one end of the rear rod 2 is provided with a first screw rod 10 connected ...
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The invention discloses a novel drilling abnormal blocking combined drilling tool connection structure. A convex ring is installed on the outer circle of the front end of a front connection rod, a first threaded hole is formed in the end head portion of the front connection rod, and a second threaded hole is formed in the back end head portion of the front connection rod; a first screw rod is arranged on the outer circle of one end of a back connection rod, a third threaded hole is formed in the other end of the back connection rod, and equal-height groove-shaped structures are arranged in the middle of a rod body of the back connection rod; a butt joint retainer ring is of a four-step trapezoidal cylindrical structure; an annular groove is formed in the outer circle of a sealing sleeve, and a rubber sealing ring is installed in the annular groove; the front connection rod is connected with a second screw rod of the butt joint retainer ring through the second threaded hole, the butt joint retainer ring is connected with the third threaded hole of the back connection rod through a third screw rod; and the sealing sleeve is installed on the portion, between a concave ring and a cylindrical retainer ring, of the front connection rod, a rubber sealing ring is installed between the sealing sleeve and the convex ring, and a rubber sealing ring is installed between the sealing sleeve and the cylindrical retainer ring. According to the novel drilling abnormal blocking combined drilling tool connection structure, the water exploring and draining construction schedule is accelerated, and safety of water exploring is guaranteed.
Description
Technical field [0001] The invention belongs to the technical field of drilling tool machinery for mines, and in particular relates to a new type of combined drilling tool connection structure for blocking abnormal drilling. Background technique [0002] With the continuous improvement of the level of coal mine safety technology and equipment, the prevention and control technology of coal mine water hazards is relatively lagging behind. In the face of the frequent occurrence of coal mine flood accidents, the government coal mine safety authority has formulated strict regulations and measures for water detection and release. According to the requirements of the "Regulations on Water Prevention and Control in Coal Mines", water detection and release should be carried out after the mining face approaches the water detection cordon. In principle, it is prohibited to detect and release water sources with water pressure higher than 1MPa in coal seams. For some specific situations, it...
Claims
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IPC IPC(8): E21B17/042E21B17/00
CPCE21B17/006E21B17/042
Inventor 吴水平王达平
Owner 吴水平