公开(公告)号：US11697755B2

公开(公告)日：2023-07-11

申请号：US17375417

申请日：2021-07-14

Applicant: ARAMCO SERVICES COMPANY

Inventor： Chengzhe Gao ,  Shitong Sherry Zhu ,  Marta Antoniv ,  Nouf AlJabri

IPC: C09K8/08 ,  E21B49/00 ,  G01N33/28

CPC classification number: C09K8/08 ,  E21B49/005 ,  G01N33/2882

Abstract: Degradable polymer additives are provided. The degradable polymer additives include a tracer functional group that is bonded to a base polymeric component by a hydrolysable covalent bond. The base polymeric component is a polysaccharide. The tracer functional group is selected from the group comprising a halogen-containing functional group, a substituted heterocyclic aromatic group, and combination thereof. A method utilizing the degradable polymeric additives in an altered drilling fluid is provided. Such a method includes introducing the altered drilling fluid into a wellbore and recovering an associated wellbore cutting from a depleted drilling fluid.

公开(公告)号：US20220017805A1

公开(公告)日：2022-01-20

申请号：US17375417

申请日：2021-07-14

Applicant: ARAMCO SERVICES COMPANY

Inventor： Chengzhe Gao ,  Shitong Sherry Zhu ,  Marta Antoniv ,  Nouf AlJabri

IPC: C09K8/08 ,  E21B49/00 ,  G01N33/28

Abstract: Degradable polymer additives are provided. The degradable polymer additives include a tracer functional group that is bonded to a base polymeric component by a hydrolysable covalent bond. The base polymeric component is a polysaccharide. The tracer functional group is selected from the group comprising a halogen-containing functional group, a substituted heterocyclic aromatic group, and combination thereof. A method utilizing the degradable polymeric additives in an altered drilling fluid is provided. Such a method includes introducing the altered drilling fluid into a wellbore and recovering an associated wellbore cutting from a depleted drilling fluid.