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公开(公告)号：EP3828248A1
公开(公告)日：2021-06-02
申请号：EP21153300.5
申请日：2016-06-16
摘要： The disclosure relates to an electrocrushing drilling fluid with an electrocrushing drilling base fluid including a polar oil, a non-polar oil, or a combination thereof and glycerine carbonate. The electrocrushing drilling fluid or base fluid may further include water or glycerin. The electrocrushing drilling fluid may further contain at least one additive. The electrocrushing drilling fluid may have a dielectric constant or dielectric strength of at least a set amount, an electric conductivity less than a set amount, or a combination of these properties. The disclosure further relates to an electrocrushing drilling system containing the electrocrushing drilling fluid and an electrocrushing drill bit.
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公开(公告)号：EP3436542A1
公开(公告)日：2019-02-06
申请号：EP16905652.0
申请日：2016-06-16
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公开(公告)号：EP2994427A1
公开(公告)日：2016-03-16
申请号：EP14760347.6
申请日：2014-04-01
IPC分类号： C02F1/66
CPC分类号： B01D19/0005 , B01D53/1493 , B01D53/52 , C02F1/52 , C02F1/5272 , C02F1/56 , C02F1/66 , C02F1/683 , C02F2101/101 , C02F2103/10 , E21B21/01
摘要： Method for removing hydrogen sulfide from fluids such as oil and gas well drilling, treatment, and production fluids and effluents from hydrocarbon operations and mineral mining operations. The sulfide scavenger used in the method is a gluconate salt other than ferrous gluconate. The gluconate salt is added to the fluid along with an iron source if iron is not already in the fluid. The gluconate reacts with the iron and forms iron gluconate in the fluid, which in turn reacts with the hydrogen sulfate to form iron sulfide which may be readily removed from the fluid.
摘要翻译： 从流体中去除硫化氢的方法，例如石油和天然气钻井，处理和生产流体以及来自烃操作和矿物开采操作的流出物。 该方法中使用的硫化物清除剂是除葡萄糖酸亚铁之外的葡萄糖酸盐。 如果铁不在流体中，则将葡萄糖酸盐与铁源一起添加到流体中。 葡萄糖酸盐与铁反应并在流体中形成葡萄糖酸铁，而葡萄糖酸铁又与硫酸氢盐反应形成可容易地从流体中除去的硫化铁。
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公开(公告)号：EP3025025A1
公开(公告)日：2016-06-01
申请号：EP13895052.2
申请日：2013-10-03
CPC分类号： E21B49/081 , E21B49/086 , E21B49/088 , E21B49/10 , E21B2049/085 , G01N33/287
摘要： Systems, methods and devices for analyzing a sample of fluid extracted from a hydrocarbon-producing geological formation to detect a quantitative amount of hydrogen sulfide or disclosed. The systems methods and devices involve including a scavenger within a sample compartment to react with the hydrogen sulfide therein. The concentration of hydrogen sulfide in the sample may be derived as a function of the amount of scavenger remaining in the sample after reaction with hydrogen sulfide, an amount of byproduct of a reaction between the scavenger and the hydrogen sulfide, or an amount of hydrogen sulfide as measured following a secondary reaction that releases the hydrogen sulfide from the scavenger.
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