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1.发明授权公开(公告)号：US09447675B2
公开(公告)日：2016-09-20
申请号：US13896255
申请日：2013-05-16
Applicant: Chevron U.S.A. Inc.
Inventor： Sujin Yean , Darrell Lynn Gallup , Lyman Arnold Young , Russell Evan Cooper , Matthew Bernard Zielinski , Mark Anthony Emanuele , Brian Christopher Llewellyn , Dennis John O'Rear
Abstract: Methods and systems relate to the in-situ removal of heavy metals such as mercury, arsenic, etc., from produced fluids such as gases and crudes from a subterranean hydrocarbon-bearing formation. A sufficient amount of a fixing agent is injected into formation with a dilution fluid. The fixing agent reacts with the heavy metals forming precipitate, or is extracted heavy metals into the dilution fluid as soluble complexes. In one embodiment, the heavy metal precipitates remain in the formation. After the recovery of the produced fluid, the dilution fluid containing the heavy metal complexes is separated from the produced fluid, generating a treated produced fluid having a reduced concentration of heavy metals. In one embodiment, the dilution fluid is water, and the wastewater containing the heavy metal complexes after recovery can be recycled by injection into a reservoir.
Abstract translation: 方法和系统涉及从地下含烃地层的产生的流体例如气体和原油原位去除重金属如汞，砷等。 用稀释液注入足量的固定剂。 固定剂与重金属形成沉淀物反应，或将重金属萃取到稀释液中作为可溶性络合物。 在一个实施方案中，重金属沉淀物保留在地层中。 在回收所产生的流体之后，将含有重金属配合物的稀释液与所产生的流体分离，产生具有降低的重金属浓度的经处理的生产流体。 在一个实施方案中，稀释流体是水，并且在回收之后含有重金属络合物的废水可以通过注入回收到储存器中。
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公开(公告)号：US09447674B2
公开(公告)日：2016-09-20
申请号：US13896242
申请日：2013-05-16
Applicant: Chevron U.S.A. Inc.
Inventor： Sujin Yean , Darrell Lynn Gallup , Lyman Arnold Young , Russell Evan Cooper , Matthew Bernard Zielinski , Mark Anthony Emanuele , Brian Christopher Llewellyn , Dennis John O'Rear
Abstract: Methods and systems relate to the in-situ removal of heavy metals such as mercury, arsenic, etc., from produced fluids such as gases and crudes from a subterranean hydrocarbon-bearing formation. A sufficient amount of a fixing agent is injected into formation with a dilution fluid. The fixing agent reacts with the heavy metals forming precipitate, or is extracted heavy metals into the dilution fluid as soluble complexes. In one embodiment, the heavy metal precipitates remain in the formation. After the recovery of the produced fluid, the dilution fluid containing the heavy metal complexes is separated from the produced fluid, generating a treated produced fluid having a reduced concentration of heavy metals. In one embodiment, the dilution fluid is water, and the wastewater containing the heavy metal complexes after recovery can be recycled by injection into a reservoir.
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