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公开(公告)号：US10519358B2
公开(公告)日：2019-12-31
申请号：US16475255
申请日：2017-12-14
申请人： BYK-CHEMIE GMBH
发明人： René Nagelsdiek , Alan Steinmetz , Justin Adams , Dominika Bernert , Jasmin Rudner , George Mark Zody
摘要： The invention relates to a drilling fluid in the form of a water-in-oil (W/O) emulsion comprising at least components (A) to (D), wherein component (D) is at least one (meth)acrylic copolymer, which contains at least one of structural units (D1), (D2) and (D3) to introduce at least one hydroxyl and/or amino functionality into the copolymer and which further contains at least one structural unit (D4), a use of said (meth)acrylic copolymer as rheological agent in drilling fluids, which are water-in-oil (W/O) emulsions, as well as to a method of producing oil and/or natural gas or of preparing the production thereof comprising the step of using the inventive drilling fluid for generating and/or operating a drill hole.
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2.发明申请公开(公告)号：US20190330510A1
公开(公告)日：2019-10-31
申请号：US16475255
申请日：2017-12-14
申请人： BYK-CHEMIE GMBH
发明人： René Nagelsdiek , Alan Steinmetz , Justin Adams , Dominika Bernert , Jasmin Rudner , George Mark Zody
摘要： The invention relates to a drilling fluid in the form of a water-in-oil (W/O) emulsion comprising at least components (A) to (D), wherein component (D) is at least one (meth)acrylic copolymer, which contains at least one of structural units (D1), (D2) and (D3) to introduce at least one hydroxyl and/or amino functionality into the copolymer and which further contains at least one structural unit (D4), a use of said (meth)acrylic copolymer as rheological agent in drilling fluids, which are water-in-oil (W/O) emulsions, as well as to a method of producing oil and/or natural gas or of preparing the production thereof comprising the step of using the inventive drilling fluid for generating and/or operating a drill hole.
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