A gas well annulus sealing rubber core friction and wear testing machine
A technology of friction and wear test and sealant, which is applied in the direction of testing wear resistance, using repeated force/pulsation force to test material strength, instruments, etc., to avoid liquid leakage, avoid the difficulty of installing pressure sensors, and simplify the structure and space layout
Active Publication Date: 2020-05-05
ZHEJIANG UNIV
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Problems solved by technology
[0003] In order to solve the technical problems mentioned in the background technology, the present invention provides a friction and wear testing machine for gas well annulus sealing rubber under pressure, which can be used to simulate the sealing rubber in oil-water wells, especially gas wells under pressure The force working conditions, observe the amount of wear, and at the same time help to obtain the method to solve the problem of friction and wear
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Embodiment Construction
[0021] The present invention will be further described below in conjunction with accompanying drawing:
[0022] Depend on Figure 1 to Figure 6 As shown, this kind of friction and wear testing machine includes conventional structures such as drill rod 7 and sealing rubber core 17. The drill rod is placed in the sealing rubber core, and the friction reciprocating motion is performed after starting the motor. Its unique features are:
[0023] The friction and wear testing machine includes a transmission and clamping system, the transmission and clamping system linear motor 1, coupling 2, transmission shaft 3, slide rail frame 4, sliding block 5, three-jaw chuck 6 and drill After rod 7 is assembled, constitute. During specific implementation, the linear motor 1 adopts general-purpose Yaskawa Electric SGLFW-35A230AP. The transmission shaft and the linear motor are connected through a shaft coupling 2, and a threaded connection is adopted between the sliding block and the transmi...
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Provided in the invention is a frictional wear testing machine of an annular sealant core of a gas well. The testing machine comprises a driving and clamping system, a loading system, and a signal acquisition system. The driving and clamping system includes a linear motor, a coupling and a transmission shaft and the like. The loading system includes a sealant core, a heating rod and a hydraulic pump station and the like. The signal acquisition system includes a temperature sensor, a strain gauge and a signal amplifier and the like. With the frictional wear testing machine, the working condition of the blowout preventer of the gas well can be simulated on a test bench; and the system pressure, the heat generation by friction, and the relative sliding speed of a sealed pipe column as well asthe frictional wear mechanism of the annular sealant core of the oil-gas well are simulated to explore reduction of wear of the sealant core and the influence on the sealing effect.
Description
technical field [0001] The invention relates to the fields of sealing rubber friction and wear and friction mechanics, in particular to a device for testing the friction and wear of a gas well annulus sealing rubber core. Background technique [0002] The annular blowout preventer is an important part of the well control device. It is mainly used to control wellhead pressure in oilfield operations such as workover, drilling and oil testing. According to the needs of gas well development and the safety of well control equipment, the safety factor of equipment configuration can be improved by improving the dry friction of sealing auxiliary. Due to the special environment and high safety requirements of gas wells, there is a "zero tolerance" for seal leakage. In order to prevent hydrogen sulfide and sulfur dioxide gas from corroding the blowout preventer, the role of the annular blowout preventer becomes very important. Since the annular blowout preventer plays an extremely i...
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IPC IPC(8): G01N3/56G01N3/02G01N3/38
CPCG01N3/02G01N3/38G01N3/56G01N2203/0005G01N2203/005G01N2203/0226G01N2203/023G01N2203/0274G01N2203/0617G01N2203/0682
Inventor 付海龙顾超华花争立刘佳琪王玥邹龙庆贾光政郭晰元
Owner ZHEJIANG UNIV