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Hydraulic system for stratum sampling instrument

A technology of hydraulic system and sampler, which is applied to fluid pressure actuating system components, fluid pressure actuating devices, servo motors, etc., can solve the problems of high use cost, complex system, low reliability, etc., and achieve reliable working performance, Good high temperature performance and the effect of simplifying the hydraulic circuit

Active Publication Date: 2014-02-05
WUHAN YUANFANG SCI & TECH CO LTD OF CHINA SANJIANG SPACE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of complex hydraulic control system, low reliability and high cost of use of the existing stratum sampling instrument, and provide a hydraulic system for stratum sampling instrument with simple structure, stable and reliable operation

Method used

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  • Hydraulic system for stratum sampling instrument

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 As shown, the hydraulic system used for the stratum sampling instrument includes a fuel tank 1, a filter screen 2, a high-speed plunger pump 4, a high-speed motor 3 for driving the high-speed plunger pump 4, a balance oil bag 20, a booster cylinder 13, a pump Oil suction cylinder 14, two sealing oil cylinders 15, four electromagnetic reversing valves, seven check valves,

[0028] The oil suction port of the high-speed plunger pump 4 is respectively connected with the hydraulic oil cavity of the balance oil bag 20 and the oil outlet of the closed oil tank 1 through the filter screen 2;

[0029] The oil outlet of the high-speed plunger pump 4 is divided into two paths, one path is connected to the P port of the first electromagnetic reversing valve 5, and the other path is connected to the inlet of the first che...

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Abstract

The invention discloses a hydraulic system for a stratum sampling instrument. The hydraulic system comprises an oil tank, a filter net, a high-speed plunger pump, a high-speed motor for driving the high-speed plunger pump, a balancing oil bag, a boosting oil cylinder, a sucking oil cylinder, two packing oil cylinders, four solenoid reversing valves and seven check valves. According to the hydraulic system for the stratum sampling instrument, the high-speed motor is adopted to be matched with the high-speed plunger pump, a large flow is output in a small structure and volume range, the hydraulic system has all packing and sucking functions of the hydraulic system of the existing stratum sampler, a system oil path is integrated by combining with selection and optimization of a hydraulic element, the hydraulic element adopts the high-speed plunger pump special for aviation instead of a duplex gear pump, the hydraulic loop is simplified, the number of elements is reduced, and the hydraulic system has the characteristic of efficiency and energy saving.

Description

technical field [0001] The invention relates to a hydraulic system, in particular to a hydraulic system for a formation sampling instrument. Background technique [0002] Domestic and foreign oil fields need to carry out testing and sampling in order to grasp the actual conditions of each oil layer in the production well. [0003] The operation of the existing formation sampler is all controlled by automatic hydraulic pressure, and its hydraulic system is relatively complicated. A double gear pump is used to drive multiple solenoid valves to control the operation of the entire system. The system includes two circuits, that is, two hydraulic pumps are used to control two One circuit is an isolation circuit used to isolate the formation, and the other circuit is a suction circuit used for sampling formation fluid; the isolation circuit includes an isolation oil cylinder that seals the formation by extruding a sealing rubber ring. The pressurized oil cylinder for sealing off t...

Claims

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Application Information

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IPC IPC(8): F15B11/08F15B21/04F15B13/02
Inventor 王辉李庆军
Owner WUHAN YUANFANG SCI & TECH CO LTD OF CHINA SANJIANG SPACE GRP
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