Drilling downhole hydraulic power pump
A hydraulic power and drilling technology, which is applied in directional drilling, liquid fuel engines, pumps, etc., can solve the problems of large influence of well temperature and high cost of tools, and achieve the effects of reducing drilling costs, simple structure and convenient use
Active Publication Date: 2016-08-31
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to overcome the problems in the background technology that existing vertical drilling tools have high cost and are greatly affected by well temperature, and provide a drilling downhole hydraulic power pump. It can reduce costs and realize vertical drilling. Since there are no electronic components, the tool is less affected by the well temperature
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Embodiment Construction
[0011] The present invention will be further described below in conjunction with accompanying drawing:
[0012] as attached figure 1 combine image 3 , Figure 4 As shown, the drilling downhole hydraulic power pump includes a mandrel 1, the lower end of which is connected to the lower joint 27, the upper and lower ends of the mandrel 1 are respectively connected to the bearing A20 and the bearing B26, and the mandrel 1 at the lower part of the bearing A20 is connected to the anti-rotation body 15 , the mandrel 1 on the upper part of the bearing B26 is connected to the actuator body 25; the anti-rotation body 15 is evenly distributed with 3 grooves in the circumferential direction, and the grooves are built with a righting spring 17, a righting thrust plate 16, and a righting limit plate 19, and the righting limit plate 19 passes through The connecting bolt D18 connects the anti-rotation body 15, and the righting limit plate 19 limits the righting thrust plate 16 in the groov...
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The invention relates to a downhole hydraulic power pump for drilling. The downhole hydraulic power pump for drilling mainly solves the problems of an existing vertical drilling tool that cost is high and influence of well temperature is high. The downhole hydraulic power pump for drilling is characterized in that three straightening springs, three straightening thrust plates and three straightening limiting plates are evenly distributed on the circumference of an anti-rotation body (15), an upper end cover (2) and a low-pressure fuel tank casing are connected with the lower end of the anti-rotation body, a low-pressure fuel tank is installed on a center spindle (1) on the inner side of the low-pressure fuel tank casing, and a balancing piston is arranged in the low-pressure fuel tank; an upper valve body (6) is connected with the lower end of the low-pressure fuel tank, a lower valve body (7) is connected with the lower end of the upper valve body, two one-way valves and two plungers (8) are installed inside the lower valve body, a cam sleeve is installed between the plunger and the center spindle, a high-pressure fuel tank is connected with the lower end of a connector, a lower end cover is connected with the lower end of the high-pressure fuel tank, and an executing mechanism body is connected with the lower portion of the lower end cover (14). By the adoption of the downhole hydraulic power pump for drilling, cost can be reduced, and vertical drilling can be achieved.
Description
technical field [0001] The invention relates to a power pump in the technical field of petroleum drilling, in particular to a hydraulic power pump for drilling downhole. Background technique [0002] With the continuous expansion and deepening of the field of exploration and development, the workload of exploration and development in high-steep structures and high-dip formations is increasing, and the problem of well deviation has become a factor that restricts the quality, efficiency and even success of exploration and development in these areas to a certain extent. The essential. In order to better solve the problem of deflection prevention in vertical wells, domestic and foreign countries have been devoting themselves to the research and development of new anti-deflection drilling tools and technologies. Automatic vertical drilling technology is a new type of drilling technology, which can effectively release drilling pressure while realizing active and timely deflection...
Claims
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IPC IPC(8): E21B7/10F04B19/04F04B53/00
CPCE21B7/10F04B19/04F04B53/00F04B53/10
Inventor 李相勇王春华李玉海万发明纪博
Owner BC P INC CHINA NAT PETROLEUM CORP