Continuous exploratory well oil testing and flowing device
A liquid drainage device and oil testing technology, which is applied in the direction of wellbore/well components, production fluid, earthwork drilling and production, etc., can solve the problem of shortening the service life of equipment, increasing the workload of on-site maintenance of equipment, motor insulation and control components are easy to burn out and other issues, to achieve the effect of increasing life, reducing installed power, and improving load status
Inactive Publication Date: 2014-03-19
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
On the one hand, the operating condition of the switched reluctance motor is in a bad state, and the phenomenon of current kickback occurs, which leads to the easy burning of the motor insulation and control components, shortens the service life of the equipment, and increases the workload of on-site maintenance of the equipment
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[0015] See figure 1 The schematic diagram of the continuous liquid drainage device for exploration well testing is shown in the schematic diagram. The continuous liquid drainage device for exploration well testing includes a power device 1, a large rope 2, a derrick and pulley system 3, and a hook 4. The large rope 2 is wound on the large rope of the power device 1. On the drum, the power unit 1 drags the big rope 2 to reciprocate, and the big rope 2 drives the big hook 3 to reciprocate up and down, and the big hook 3 drives the sucker rod 5 to carry out the oil pumping operation.
[0016] See figure 2 As shown in the schematic diagram of the power plant, the power plant includes an electric system 20 and an energy storage system 25, wherein the electric system 20 is the part in the dotted line box in the figure and includes a motor 21, a reducer 23 and a large rope drum 24, and the motor 21 is connected to the reducer 23 , similarly, speed reducer 23, big rope drum 24 and e...
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The invention discloses a continuous exploratory well oil testing and flowing device which is used for oil testing and flowing production of an oilfield exploratory well. The continuous exploratory well oil testing and flowing device comprises a power device, wherein the power device comprises an electric system; the electric system comprises a motor, a reduction box and a casing spool all of which are connected in sequence; the electric system is connected with an energy storage system. The energy storage system is a hydraulic motor / pump energy storage system or a system formed by a hydraulic cylinder energy storage device. Due to the fact that the energy storage system is arranged in the power device, imbalanced motor loads caused by load difference in the upper stroke and the lower stroke of a sucker rod are relieved, the load state of the motor is improved, the service life of the motor is prolonged, the working efficiency of the motor is improved effectively, and the installed power of the motor is reduced.
Description
technical field [0001] The invention relates to a ground power device used for mechanical oil recovery in oil production wells, in particular to a continuous liquid drainage device for oil testing in exploration wells, which is used for oil testing and drainage production in oil field exploration wells. Background technique [0002] Petroleum exploration is one of the most important tasks in the oil field. In order to determine the production capacity and other parameters of the oil reservoir, oil testing and liquid drainage operations must be carried out after the completion of the exploration well. In the past, there were two methods for liquid drainage. One is to install a pumping unit for liquid drainage, which requires a large investment; Large, low efficiency, large changes in equipment operating parameters. In order to solve this problem, Chinese patent: Patent No. ZL200720025542.X, application date: July 23, 2007, patent name "exploration well test oil continuous li...
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IPC IPC(8): E21B43/00
Inventor 刘常福徐文庆汪云家李加庆仲如冰贺启强肖姝杭发琴
Owner CHINA PETROLEUM & CHEM CORP