Hydrolytically degradable composition

    公开(公告)号:US10752824B2

    公开(公告)日:2020-08-25

    申请号:US16181818

    申请日:2018-11-06

    摘要: Disclosed are time controlled, hydrolytically degradable compositions that include a polyurethane; precipitated silica, carbon black, or a combination thereof; an organic acid adapted to facilitate degradation when the composition is contacted with water; a stabilizer; a first crosslinking agent; and an optional co-agent. The composition is adapted to degrade over a predetermined time period upon contact with water at a pH ranging from 5 to 8 and at a temperature ranging from 100° F. to 250° F.

    Piston pump with barrier fluid seal

    公开(公告)号:US10378522B2

    公开(公告)日:2019-08-13

    申请号:US14603639

    申请日:2015-01-23

    摘要: A piston pump including a cylinder body having an internal fluid chamber, a piston configured to axially cycle within the cylinder body, an inlet valve, an outlet valve, an annular seal positioned between the piston and cylinder body, a barrier fluid pocket formed in the cylinder body adjacent one end of the annular seal, and a barrier fluid contained within the barrier fluid pocket, the barrier fluid preventing suspended solids in pumped fluid from contacting the annular seal.

    HYDROLYTICALLY DEGRADABLE COMPOSITION
    4.
    发明申请

    公开(公告)号:US20190144735A1

    公开(公告)日:2019-05-16

    申请号:US16181818

    申请日:2018-11-06

    摘要: Disclosed are time controlled, hydrolytically degradable compositions that include a polyurethane; precipitated silica, carbon black, or a combination thereof; an organic acid adapted to facilitate degradation when the composition is contacted with water; a stabilizer; a first crosslinking agent; and an optional co-agent. The composition is adapted to degrade over a predetermined time period upon contact with water at a pH ranging from 5 to 8 and at a temperature ranging from 100° F. to 250° F.

    PISTON PUMP WITH BARRIER FLUID SEAL
    5.
    发明申请
    PISTON PUMP WITH BARRIER FLUID SEAL 审中-公开
    活塞泵与障碍液密封

    公开(公告)号:US20150204316A1

    公开(公告)日:2015-07-23

    申请号:US14603639

    申请日:2015-01-23

    IPC分类号: F04B7/02 F04B53/10

    摘要: A piston pump including a cylinder body having an internal fluid chamber, a piston configured to axially cycle within the cylinder body, an inlet valve, an outlet valve, an annular seal positioned between the piston and cylinder body, a barrier fluid pocket formed in the cylinder body adjacent one end of the annular seal, and a barrier fluid contained within the barrier fluid pocket, the barrier fluid preventing suspended solids in pumped fluid from contacting the annular seal.

    摘要翻译: 一种活塞泵,包括具有内部流体室的缸体,构造成在缸体内轴向循环的活塞,入口阀,出口阀,位于活塞和缸体之间的环形密封件,形成在阀体中的阻挡流体袋 缸体与环形密封件的一端相邻,以及容纳在阻挡液体袋内的阻挡流体,阻挡流体防止泵送流体中的悬浮固体与环形密封接触。

    Doped biodegradable elastomer for downhole applications

    公开(公告)号:US10526863B2

    公开(公告)日:2020-01-07

    申请号:US15995777

    申请日:2018-06-01

    摘要: Compositions and methods are beneficial for use in downhole applications, especially oil and gas well bores. A composition includes an elastomer doped with a dopant. The presence of the dopant increases a rate of microbial degradation of the elastomer by a microbe. A method includes forming an article including a doped polymer. The doped polymer includes an elastomer doped with a dopant. The method also includes placing the article in a service environment. The presence of the dopant in the doped polymer increases a rate of microbial degradation of the elastomer by a microbe in the service environment.