公开(公告)号：US20240067858A1

公开(公告)日：2024-02-29

申请号：US17898848

申请日：2022-08-30

申请人： Saudi Arabian Oil Company

发明人： Abdullah Saleh Hussain Al-Yami ,  Ali Mohammed Hussain Al Safran ,  Vikrant Wagle ,  Ali Al-Shaikh ,  Essam Mohamed ,  Julio C. Guzman Munoz

IPC分类号： C09K8/44 ,  C04B22/06 ,  C04B22/14 ,  C04B24/12 ,  C04B26/14

CPC分类号： C09K8/44 ,  C04B22/06 ,  C04B22/142 ,  C04B24/121 ,  C04B26/14

摘要： The disclosure relates to systems and methods in which aliphatic epoxy resin crosslinked polymers are used in primary cementing applications. The aliphatic epoxy resin crosslinked polymers contain a derivative of a first epoxy resin, a derivative of a second epoxy resin and a polyamine. The first epoxy resin contains bisphenol A and an aliphatic monoglycidyl ether. The second epoxy resin contains a C12-C14 alkyl glycidyl ether.

公开(公告)号：US20240280013A1

公开(公告)日：2024-08-22

申请号：US18171947

申请日：2023-02-21

申请人： Saudi Arabian Oil Company

发明人： Abdullrohman Khaled Alarfaj ,  Ali Al-Shaikh ,  Mohammad Abdullah Alkhateeb

IPC分类号： E21B47/08 ,  G01B5/12

CPC分类号： E21B47/08 ,  G01B5/12

摘要： A drift bar is lowered into a well. The drift bar has a density that is less than a density of a wellbore fluid residing in the well. A tubular is lowered into the well below a surface level of the wellbore fluid residing in the well. The tubular defines an inner bore having an inner diameter that is greater than an outer diameter of the drift bar. The drift bar is positioned to pass through the inner bore of the tubular as the tubular is lowered into the well. After the tubular is positioned below the surface level, an absence or presence of the drift bar floating at the surface level is detected. An absence or presence of a restriction in the inner bore of the tubular is determined in response to detecting the presence or absence, respectively, of the drift bar floating at the surface level.