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公开(公告)号：US20210260547A1
公开(公告)日：2021-08-26
申请号：US17315216
申请日：2021-05-07
申请人： Southwest Petroleum University , Engineering Technology Research lnstitute,Southwest Oil and Gas Field Company of Petro China
发明人： Zhi Zhang , Jinming Liu , Huali Zhang , Yufei Li , Jiawei Wang , Duo Hou , Jian Ding , Yuanjin Zhao , Lin Zhang , Wei Luo , Chuanlei Wang , Pengfei Sang
摘要： A piston pressure device includes a gas concentration-regulating piston pressure device and a high temperature autoclave. In the gas concentration-regulating piston pressure device, the proportion and concentration of corrosive gases can be accurately adjusted, intermediate gases can be stored and filled into the high temperature autoclave according to experimental needs, and an actual corrosion process in oilfield is accurately simulated. Meanwhile, the corrosive gases can be supplemented in real time during the experiment, and dynamic gas distribution in a high-temperature high-pressure corrosion experiment process is realized. The present invention has the advantages as follows: the piston pressure device is resistant to high temperature and high pressure, corrosion-resistant, simple in structure and convenient to operate; the concentration and proportion of the corrosive gases are accurately controlled to be invariable in the high-temperature high-corrosion experiment process; and reliability of high-temperature high-pressure corrosive experimental results is increased.
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公开(公告)号：US11583822B2
公开(公告)日：2023-02-21
申请号：US17315216
申请日：2021-05-07
申请人： Southwest Petroleum University , Engineering Technology Research Institute, Southwest Oil and Gas Field Company of Petro China
发明人： Zhi Zhang , Jinming Liu , Huali Zhang , Yufei Li , Jiawei Wang , Duo Hou , Jian Ding , Yuanjin Zhao , Lin Zhang , Wei Luo , Chuanlei Wang , Pengfei Sang
摘要： A piston pressure device includes a gas concentration-regulating piston pressure device and a high temperature autoclave. In the gas concentration-regulating piston pressure device, the proportion and concentration of corrosive gases can be accurately adjusted, intermediate gases can be stored and filled into the high temperature autoclave according to experimental needs, and an actual corrosion process in oilfield is accurately simulated. Meanwhile, the corrosive gases can be supplemented in real time during the experiment, and dynamic gas distribution in a high-temperature high-pressure corrosion experiment process is realized. The present invention has the advantages as follows: the piston pressure device is resistant to high temperature and high pressure, corrosion-resistant, simple in structure and convenient to operate; the concentration and proportion of the corrosive gases are accurately controlled to be invariable in the high-temperature high-corrosion experiment process; and reliability of high-temperature high-pressure corrosive experimental results is increased.
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公开(公告)号：US11378501B2
公开(公告)日：2022-07-05
申请号：US16828981
申请日：2020-03-25
发明人： Zhi Zhang , Yuanjin Zhao , Duo Hou , Nan Cai , Xiankang Zhong , Pengfei Sang , Jian Ding , Jinming Liu , Jiawei Wang
摘要： A rotary fatigue tester with complex loads includes a pump, a first motor, a second motor, a circulatory loop, an experimental kettle body, and a holding device. The experimental kettle body is a cylindrical tank, the circulatory loop is located on the experimental kettle body, a pump is located within the circulatory loop and is connected with a corrosive gas pipeline; the holding device is located within the experimental kettle body for fixing a test piece, a force-bearing pole is located at one side of the experimental kettle body for applying a shear force to the test piece, the holding device and the force-bearing pole are connected with the first motor and the second motor respectively. The rotary fatigue tester is able to simultaneously apply the axial alternating load and tangential alternating load to the test piece, for simulating the force of the test piece under complex loads.
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公开(公告)号：US20210231520A1
公开(公告)日：2021-07-29
申请号：US17229802
申请日：2021-04-13
申请人： Southwest Petroleum University , Engineering Technology Research Institute, Southwest Oil and Gas Field Company of Petro China
发明人： Zhi Zhang , Duo Hou , Huali Zhang , Yufei Li , You Wu , Lin Zhang , Wei Luo , Chuanlei Wang , Xiankang Zhong , Pengfei Sang
摘要： A sealing integrity evaluation device for high-temperature and high-pressure casing-cement ring-formation and a method thereof are provided. the device includes: a high-temperature autoclave, a temperature and pressure control system, and a casing-cement-formation combination; wherein the autoclave realizes alternating temperature and pressure during the experiment; the control system monitors, controls and records the temperature and pressure data; the combination simulates a full size or a compact size casing-cement-formation of a well. Casing-cement-formation combination samples are designed and prepared by simulating working conditions such as alternating temperature, pressure, and casing internal pressure, by testing the channeling and leakage pressure of the first interface and the second interface of combination, analyzing the shape and size of the internal defects, testing the compressive strength, provided a more stable and reliable experimental method and data support for the detection of cementing sheath sealing ability and the evaluation of sealing integrity.
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公开(公告)号：US20200225135A1
公开(公告)日：2020-07-16
申请号：US16828981
申请日：2020-03-25
发明人： Zhi Zhang , Yuanjin Zhao , Duo Hou , Nan Cai , Xiankang Zhong , Pengfei Sang , Jian Ding , Jinming Liu , Jiawei Wang
摘要： A rotary fatigue tester with complex loads includes a pump, a first motor, a second motor, a circulatory loop, an experimental kettle body, and a holding device. The experimental kettle body is a cylindrical tank, the circulatory loop is located on the experimental kettle body, a pump is located within the circulatory loop and is connected with a corrosive gas pipeline; the holding device is located within the experimental kettle body for fixing a test piece, a force-bearing pole is located at one side of the experimental kettle body for applying a shear force to the test piece, the holding device and the force-bearing pole are connected with the first motor and the second motor respectively. The rotary fatigue tester is able to simultaneously apply the axial alternating load and tangential alternating load to the test piece, for simulating the force of the test piece under complex loads.
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