公开(公告)号：US20150368549A1

公开(公告)日：2015-12-24

申请号：US14841143

申请日：2015-08-31

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Dean M. Willberg ,  Kseniya Nosova ,  Marina Nikolaevna Bulova ,  Simon Gareth James ,  Sergey Sokolov

IPC: C09K8/80

CPC classification number: C09K8/805 ,  C09K8/035 ,  C09K8/516 ,  C09K8/68 ,  C09K2208/18 ,  E21B33/138

Abstract: A water absorbing composition includes a particle having a core of a water-swelling material. A coating substantially surrounds the core that temporarily prevents contact of water with the water-swelling material. The coating may be formed from a layer of water degradable material or a non-water-degradable, non-water absorbent encapsulating layer. A quantity of particles including delayed water-swelling particles formed at least in part from a water-swelling material and, optionally, non-water-swelling particles of the same or different size distributions can be used in treating a formation penetrated by a wellbore. A slurry of the particles is formed with a carrier fluid. The slurry of particles is introduced into the wellbore of the formation to facilitate treatment.

Abstract translation: 吸水组合物包括具有水溶胀材料芯的颗粒。 涂层基本上围绕芯部，暂时防止水与水溶胀材料的接触。 该涂层可以由一层水可降解材料或非水可降解的非吸水性封装层形成。 至少部分由水溶胀材料形成的延迟的水溶胀颗粒和任选的具有相同或不同尺寸分布的非水溶胀颗粒的颗粒的量可以用于处理由井眼渗透的地层。 用载体流体形成颗粒的浆液。 将颗粒的浆料引入地层的井筒中以便于处理。