公开(公告)号：US20180169977A1

公开(公告)日：2018-06-21

申请号：US15735762

申请日：2016-06-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Yong K. Wu ,  Siegmund Papp ,  Andrew J. Peterson

IPC: B29C70/66 ,  B29C70/44 ,  E21B17/01

CPC classification number: B29C70/66 ,  B29C70/44 ,  B29K2063/00 ,  B29K2105/04 ,  B29K2105/251 ,  B29K2509/08 ,  B29L2031/706 ,  E21B17/012

Abstract: Buoyancy modules (200) are made from a foam composition that includes a combination of a thermally fusable powder and glass microspheres heated in a manner that provides a hardened syntactic foam having both low density and a high degree of compressive strength. An outer barrier (220) may enclose the buoyancy module.

公开(公告)号：US20160264839A1

公开(公告)日：2016-09-15

申请号：US15031448

申请日：2014-10-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Clara E. Mata ,  Yong K. Wu ,  Ignatius A. Kadoma ,  Michael D. Crandall ,  Amor A. Calubayan ,  Andrew J. Peterson

IPC: C09K8/467 ,  C04B28/04 ,  E21B33/14 ,  C04B16/12

CPC classification number: C09K8/467 ,  C04B16/12 ,  C04B20/0068 ,  C04B20/1033 ,  C04B28/04 ,  C09K8/487 ,  C09K2208/08 ,  E21B33/14 ,  C04B20/0048 ,  C04B2103/10 ,  C04B2103/20 ,  C04B2103/408 ,  C04B2103/46 ,  C04B16/0683 ,  C04B16/0691 ,  C04B16/0675

Abstract: A well cement composition includes a hydraulic well cement and multi-component fibers having at least a first polymeric composition and a second polymeric composition. At least a portion of the external surfaces of the multi-component fibers includes the first polymeric composition, and the first polymeric composition includes an ethylene-methacrylic acid or ethylene-acrylic acid copolymer. A method of cementing a subterranean well is also described. The method includes introducing the well cement composition into a wellbore, wherein the well cement composition further comprises water, and forming a cured cement in the wellbore.

Abstract translation: 良好的水泥组合物包括具有至少第一聚合物组合物和第二聚合物组合物的液压井水泥和多组分纤维。 多组分纤维的外表面的至少一部分包括第一聚合物组合物，第一聚合物组合物包括乙烯 - 甲基丙烯酸或乙烯 - 丙烯酸共聚物。 还描述了固井地下井的方法。 该方法包括将井眼水泥组合物引入井筒中，其中井水泥组合物还包含水，并在井眼中形成固化的水泥。