Multifunctional foaming system used in air foam flooding
An air-foam flooding, multi-functional technology, applied in drilling compositions, chemical instruments and methods, etc., can solve the problems of increased development cost, limited plugging capacity, hidden safety hazards, etc., and achieves reduced gas channeling and low cost. running effect
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Embodiment 1
[0036] Embodiment 1: The foaming system for multifunctional air foam flooding, the active ingredient weight percent of each component is:
[0037] Sodium fatty alcohol polyoxyethylene ether sulfate: 0.5%;
[0038] Silicone polyether emulsion: 0.2%;
[0039] Anionic polyacrylamide: 0.2%;
[0040] Molasses: 2%;
[0041] Yeast extract: 0.1%;
[0042] Ferrous sulfate: 0.005%;
[0043] Manganese sulfate: 0.0002%;
[0045] The balance is Huaziping Oilfield injection water, and the sum of the weight percentages of each component is 100%.
[0046] The preparation method of this embodiment:
[0047] Step 1. Add fatty alcohol polyoxyethylene ether sodium sulfate, silicone resin polyether emulsion, molasses, yeast extract, ferrous sulfate, manganese sulfate, and sodium nitrate in a stirring state according to weight percentage. Inject the Huaziping Oilfield under the water into water (the order of adding the above seven agents is not required), and ...
Embodiment 2
[0051] Embodiment 2: The foaming system for multifunctional air foam flooding, the active ingredient weight percent of each component is:
[0052] Fatty alcohol polyoxyethylene ether sodium sulfate: 0.1%;
[0053] Silicone polyether emulsion: 0.05%;
[0054] Anionic polyacrylamide: 0.05%;
[0055] Molasses: 0.5%;
[0056] Yeast extract: 0.01%;
[0057] Ferrous sulfate: 0.0005%;
[0058] Manganese sulfate: 0.00005%;
[0060] The balance is the sewage produced by Huaziping Oilfield, and the sum of the weight percentages of each component is 100%.
[0061] The preparation method of this embodiment:
[0062] Step 1. Add fatty alcohol polyoxyethylene ether sodium sulfate, silicone resin polyether emulsion, molasses, yeast extract, ferrous sulfate, manganese sulfate, and sodium nitrate in a stirring state according to weight percentage. In the Huaziping Oilfield produced sewage (the order of adding the above seven agents is not required), stir...
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