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65 results about "Test string" patented technology

String test. A string test involves swallowing a string to obtain a sample from the upper part of the small intestine. The sample is then tested to look for intestinal parasites.

String and method for quickly surveying water in horizontal well by multi-parameter combined test without moving string

ActiveCN105114061AEnsure construction safetyThe pressure recovery value is validSurveyCombined testWater production
The invention provides a string and a method for quickly surveying water in horizontal well by multi-parameter combined test without moving the string. Mainly, test instruments (such as a flow meter and a pressure meter) are conveyed to the bottom of the well by means of an oil tube, the test instruments are connected with the oil tube in a threaded manner and are tripped in a horizontal segment of the horizontal well along with packers. According to a number of fracturing modified segments of the horizontal well and water breakthrough features, under supporting of different amounts of packers, the horizontal segment is packed into different production intervals; each production zone segment is provided with the corresponding flow meter, pressure meter and the like. After the test string is tripped in the well, the well is shut for pressure recovery test of each interval, the well is opened for production after pressure recovery test is finished, production and drainage are performed with a high-capacity drainage parameter, the string is tripped out after a certain period of production time, changes in parameters such as pressure meter pressure, temperature and flow are played back, parameters of the jammed intervals are tested interval by interval, and a water production interval is comprehensively determined; water surveying accuracy and efficiency of the horizontal well are improved.
Owner:PETROCHINA CO LTD

A kind of heavy oil storage stability test method and equipment

ActiveCN102288744AStability testMaterial testing goodsFuel oilColumn temperature
The invention relates to a heavy oil storage stability test method and equipment; an oil storage pipe string for simulating the storage and transportation conditions of heavy oil transported by super-large tankers is designed, and the height of the test oil storage pipe string is 10-50 meters, which is set in one or more sections to realize the simulation of various types The height of the oil layer when the tanker is fully loaded; the test string realizes constant temperature storage or temperature control of heavy oil, and the temperature range is 10-120°C; the liquid level of the test string is sealed with inert gas; sampling ports are set at each section of the test string , using sampling analysis at different positions and times, judging the stability of the modified oil through viscosity and spot test data, and measuring the long-term storage stability of the heavy oil by adjusting the storage conditions of the heavy oil and testing the heavy oil stability parameters of different layers; the present invention simulates According to the storage and transportation conditions of heavy oil transported by VLCCs, samples are analyzed according to different storage times, and the stability of oil storage can be judged through viscosity and spot test data, which can guide the transportation, storage and processing of oil products.
Owner:PETROCHINA CO LTD

Intelligent electric meter defect detection equipment

The invention relates to intelligent electric meter defect detection equipment which comprises an infrared communication interface, a high-definition camera, an image detector and an embedded type processor, wherein the infrared communication interface is used for sending a test signal to a detected electric meter so as to enable the detected electric meter to control a display screen of the detected electric meter to display a test character string included in the test signal; the high-definition camera is used for shooting the display screen of the detected electric meter to output a test image; the image detector is connected with the high-definition camera and is used for carrying out image processing on the test image to identify the character string in the test image and output the character string serving as an identification character string; the embedded type processor is connected with the image detector and is used for comparing the identification character string with the test character string so as to determine whether to send a defect alarming signal. The intelligent electric meter defect detection equipment can completely and automatically detect the displaying defect of the display screen of each electric meter, and the labor cost and the time cost are reduced.
Owner:STATE GRID SHANDONG ELECTRIC POWER CO QINGZHOU POWER SUPPLY CO +2

Intelligent detection equipment for defects of ammeter

The invention relates to intelligent detection equipment for defects of an ammeter. The intelligent detection equipment comprises an infrared communication interface, a high-definition camera, an image detector and an embedded processor, wherein the infrared communication interface is used for transmitting a testing signal to the detected ammeter, so that the detected ammeter can conveniently control a display screen of the detected ammeter to display a testing character string in the testing signal; the high-definition camera is used for photographing the display screen of the detected ammeter so as to output a testing image; the image detector is connected with the high-definition camera and is used for carrying out image processing on the testing image, identifying a character string in the testing image and outputting the character string as an identification character string; and the embedded processor is connected with the image detector and is used for comparing the identification character string with the testing character string so as to determine whether a defect alarming signal is transmitted or not. With the adoption of the intelligent detection equipment for the defects of the ammeter, the display defect detection of the display screen of each ammeter can be completely automatically realized, so that the manual cost and time cost are reduced.
Owner:宏和机电工程有限公司

Automatic checking terminal for faults of outdoor electric energy meter

The invention relates to an automatic checking terminal for faults of an outdoor electric energy meter. The automatic checking terminal comprises an infrared transceiver, a CCD high-definition camera, an image processor and an ARM 11 processor, the infrared transceiver is used for sending testing signals to the detected electric energy meter, so that the detected electric energy meter controls a display screen of the detected electric energy meter to display the testing signals including a testing character string, the CCD high-definition camera is used for shooting the display screen of the detected electric energy meter to output a test image, the image processor is connected with the CCD high-definition camera and used for conducting picture processing on the test image to identify a character string of the test image and to be output as an identification character string, the ARM 11 processor is connected with the image processor and used for comparing the identification character string with the testing character string in order to judge whether a failure warning signal is sent out. The checking terminal further includes a defogging process on the image. By means of the automatic checking terminal, full-automatic accurate detecting of the outdoor electric energy meter can be achieved in all kinds of weather.
Owner:浙江晨泰科技股份有限公司

Hydraulically-controlled underground check valve capable of being opened/closed repeatedly

The invention relates to a hydraulically-controlled underground check valve capbale of being opened/closed repeatedly, and belong to the field of petroleum underground operation tools. The underground check valve comprises an outer sleeve, an upper joint, a lower joint, a baffle valve and a piston; the upper joint is mounted at one end of the outer sleeve through threads; the lower joint is mounted at the other end of the outer sleeve through threads; the baffle valve is mounted in the lower joint through threads; the piston is movably mounted in the outer sleeve on one side of the baffle valve; the piston is in contact connection with the baffle valve. The underground check valve is simple in structure and high in practicability, and can realize the full bore of an operation test string when being in the open state in the operation process; pressure is applied after a ball is throw into, so that the opening and the closing of the check valve can be realized; the balance of pressures above and below a valve plate can be easily realized when the pressures above and below the valve plate are not equal; the check valve can be mounted at any desired position of a pipe column to meet needs of various operating environments; meanwhile, the check valve has the characteristics of being convenient to mount and wide in application range.
Owner:荆州市赛瑞能源技术有限公司
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