公开(公告)号：US10179879B2

公开(公告)日：2019-01-15

申请号：US15016407

申请日：2016-02-05

Applicant: Chevron U.S.A. Inc.

Inventor： Dennis John O'Rear ,  Russell Evan Cooper ,  Shabbir Husain

IPC: C10G21/00 ,  C10G21/08 ,  C04B18/04 ,  C10G21/28 ,  E21B43/40

Abstract: A method is provided for recovering mercury from a crude oil into an alkaline ammonium sulfide contacting solution. Soluble mercury complexes in the contacting solution are converted to particulate mercury. The particulate mercury can be recovered by filtering, and the ammonium sulfide in the contacting solution recycled to the aqueous contacting solution.

公开(公告)号：US20160319652A1

公开(公告)日：2016-11-03

申请号：US15141924

申请日：2016-04-29

Applicant: Chevron U.S.A. Inc.

Inventor： Christopher John Kalli ,  Russell Evan Cooper

IPC: E21B43/36 ,  C02F1/02 ,  C02F1/00 ,  C02F1/40

CPC classification number: E21B43/36 ,  B01D21/00 ,  B01D21/10 ,  B01D21/30 ,  B01D2221/04 ,  C02F1/004 ,  C02F1/02 ,  C02F1/40 ,  C02F2001/007 ,  C02F2101/32 ,  C02F2103/10 ,  C02F2303/08

Abstract: A subsea storage unit (SSU) with a flexible bag (flexible bladder or expandable skin) is used for produced water storage. The use of the SSU allows the solids to settle out in the storage vessel that would otherwise have settled out and accumulated on underwater surfaces, removal of hydrocarbons and the smoothing out of variations in water quality resulting from process upsets. Solids that remain in suspension and exit the SSU will then disperse without any appreciable settlement to be completely dispersed. Accumulated solids can be retrieved with the expandable skin, which can then be replaced for continued service.

Abstract translation: 使用具有柔性袋（柔性气囊或可膨胀表皮）的海底存储单元（SSU）用于生产的储水。 使用SSU可以使固体沉淀在存储容器中，否则这些固体将会沉淀出来并积聚在水下表面，去除碳氢化合物，并平滑出水处理过程中的水质变化。 仍然悬浮和离开SSU的固体将分散，没有明显的沉降物完全分散。 累积的固体可以用可膨胀的皮肤检索，然后可以更换以继续使用。

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

IPC: E21B43/16 ,  E21B43/38 ,  E21B43/26 ,  E21B43/34 ,  E21B43/40 ,  C09K8/52

CPC classification number: E21B43/38 ,  C09K8/52 ,  E21B43/16 ,  E21B43/26 ,  E21B43/34 ,  E21B43/40

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。