公开(公告)号：US20150159073A1

公开(公告)日：2015-06-11

申请号：US14406701

申请日：2013-06-05

Applicant: BASF SE

Inventor： Andrea Assmann ,  Roland Reichenbach-Klinke ,  Jutta Karin Langlotz

IPC: C09K8/08 ,  E21B7/00

CPC classification number: C09K8/08 ,  C09K8/528 ,  C09K2208/12 ,  E21B7/00

Abstract: The use of gelatin-based copolymers containing at least one grafted side chain formed from ethylenically unsaturated compounds as an anti-accretion additive is proposed for water-based drilling fluids in the development, exploitation and completion of underground mineral oil and natural gas deposits and in deep wells. These copolymers are water-soluble and have good biodegradability.

Abstract translation: 提出使用含有至少一种由烯属不饱和化合物形成的接枝侧链作为抗吸附添加剂的明胶基共聚物，用于开发，开发和完成地下矿物油和天然气矿床中的水基钻井液， 深井 这些共聚物是水溶性的并且具有良好的生物降解性。

公开(公告)号：US10308858B2

公开(公告)日：2019-06-04

申请号：US14406701

申请日：2013-06-05

Applicant: BASF SE

Inventor： Andrea Assmann ,  Roland Reichenbach-Klinke ,  Jutta Karin Langlotz

IPC: C09K8/08 ,  E21B7/00 ,  C09K8/528

Abstract: The use of gelatin-based copolymers containing at least one grafted side chain formed from ethylenically unsaturated compounds as an anti-accretion additive is proposed for water-based drilling fluids in the development, exploitation and completion of underground mineral oil and natural gas deposits and in deep wells. These copolymers are water-soluble and have good biodegradability.