An indoor evaluation device and evaluation method for defoamers used in oilfield produced fluids
A technology for indoor evaluation and production of liquid, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of long evaluation cycle, unsuitable defoamer evaluation, unfavorable product development and promotion, etc., to achieve high accuracy and safety. Good performance and small footprint
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Embodiment 1
[0042] (1) Add 500mL of oilfield output fluid from Lvda 5-2 oilfield in Bohai Sea to the high-temperature and high-pressure stirring reactor 1, and seal the high-temperature and high-pressure stirring reactor 1 to ensure that the inlet valve 9 and exhaust of the high-temperature and high-pressure stirring reactor 1 The gas valve 11 is in an open state, and the discharge valve 14 is in a closed state. Add 50 mg of the defoamer sample to be tested into the glass measuring cylinder 5, place the glass measuring cylinder 5 directly below the drain pipe 13 of the high temperature and high pressure stirring reactor 1, and turn on the powerful searchlight 7;
[0043] (2) Open the vacuum pump 2, vacuumize the high temperature and high pressure stirred reactor 1 through the exhaust valve 11, until the pressure gauge 12 shows that the internal pressure of the high temperature and high pressure stirred reactor 1 is -0.09MPa, close the exhaust valve 11 and the vacuum pump 2 in turn;
[004...
Embodiment 2
[0056] (1) Add 500mL of oilfield output fluid from Bohai Jinzhou 9-3 oilfield into the high-temperature and high-pressure stirred reactor 1, and seal the high-temperature and high-pressure stirred reactor 1 to ensure that the inlet valve 9 and exhaust of the high-temperature and high-pressure stirred reactor 1 The valve 11 is in an open state, and the discharge valve 14 is in a closed state. Add 15 mg of the defoamer sample to be tested into the glass measuring cylinder 5, place the glass measuring cylinder 5 directly below the drain pipe 13 of the high-temperature and high-pressure stirring reactor 1, and turn on the powerful searchlight 7;
[0057] (2) Open the vacuum pump 2, vacuumize the high temperature and high pressure stirred reactor 1 through the exhaust valve 11, until the pressure gauge 12 shows that the internal pressure of the high temperature and high pressure stirred reactor 1 is -0.1MPa, close the exhaust valve 11 and the vacuum pump 2 in turn;
[0058] (3) Ope...
Embodiment 3
[0070] (1) Add 500mL of oilfield output fluid from the Bozhong 28-2S oilfield in the Bohai Sea to the high-temperature and high-pressure stirred reactor 1, and seal the high-temperature and high-pressure stirred reactor 1 to ensure that the inlet valve 9 and exhaust of the high-temperature and high-pressure stirred reactor 1 The gas valve 11 is in an open state, and the discharge valve 14 is in a closed state. Add 20 mg of the defoamer sample to be tested into the glass measuring cylinder 5, place the glass measuring cylinder 5 directly below the drain pipe 13 of the high temperature and high pressure stirring reactor 1, and turn on the powerful searchlight 7;
[0071] (2) Open the vacuum pump 2, vacuumize the high temperature and high pressure stirred reactor 1 through the exhaust valve 11, until the pressure gauge 12 shows that the internal pressure of the high temperature and high pressure stirred reactor 1 is -0.1MPa, close the exhaust valve 11 and the vacuum pump 2 in turn...
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