Method and device for analyzing light fraction compounds in petroleum hydrocarbon source rock
An analysis method and source rock technology, applied in the direction of analysis materials, preparation of test samples, material separation, etc., can solve problems such as loss, environmental protection problems, small sample size, etc., and achieve the effect of avoiding loss
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[0020] Example 1
[0021] (1) The liquid nitrogen freezing and impact crushing device includes a vacuum liquid nitrogen cup 7, a sample container 9, an air compressor 2, an impact hammer 3, a linear bearing bracket 11 and a lifting cylinder 4. The sample container 9 is placed in the vacuum liquid nitrogen cup 7, and is fixed under the device by the support plate 8. The impact hammer 3 is located above the mouth of the sample container and fixed on the linear bearing bracket 11, and the linear bearing bracket is fixed on the slide rails at both ends of the device. 12, the slide rails are vertically fixed on both sides of the device, the air compressor 2 is located on the linear bearing bracket 11 and connected to the impact hammer 3. The upper end of the air compressor is fixed on the lower end of the cylinder cross bar 1, the cylinder cross bar 1 and the two ends The lifting rod 10 of the lifting cylinder 4 is connected, and the lifting is completed by two cylinders. The vacuum li...
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[0023] Example 2-17
[0024] Using the equipment of Example 1, the main test conditions are listed in Table 1.
[0025] Table 1 Conditional experimental data (partial)
[0026] Serial number
[0027] 4
[0028] 1. Test sample
[0029] There are three types of test samples:
[0030] ① Prepared light hydrocarbon standard samples: n-pentane, n-hexane, n-heptane and isooctane (nC5-iC8)
[0031] ②Light crude oil: Pinghu 4 well
[0032] ③Core sample: 765.18m from Well Wu102, Wangfu Sag, Bin County, Daqing
[0033] 2. Determination of the amount of liquid nitrogen added and the emptying time
[0034] The amount of liquid nitrogen added and the emptying time are mainly determined by the effect of the chromatogram. After adjusting the amount of liquid nitrogen and the emptying time (see Table 1 for detailed conditions), the conditions of 7ml of liquid nitrogen and 90min of emptying are determined by preference. figure 1 with figure 2 It can be seen that the baseline...
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