Drilling fluids
    2.
    发明授权

    公开(公告)号:US06518224B2

    公开(公告)日:2003-02-11

    申请号:US09767352

    申请日:2001-01-23

    申请人: Robert R. Wood

    发明人: Robert R. Wood

    IPC分类号: C09K700

    摘要: The invention is a novel drilling fluid additive comprising particles of elastomer which are capable of swelling upon contact with a hydrocarbon fluid. The swelling of the elastomer is gradual, allowing the elastomer to reach the lost circulation zone before significant swelling occurs. Once in the lost circulation zone, the polymer expands sealing off the lost circulation zone. A method for preventing drilling fluid loss is also provided.

    Dedicated heterogeneous node scheduling including backfill scheduling
    3.
    发明授权
    Dedicated heterogeneous node scheduling including backfill scheduling 失效
    专用异构节点调度包括回填调度

    公开(公告)号:US07082606B2

    公开(公告)日:2006-07-25

    申请号:US10137014

    申请日:2002-04-30

    CPC分类号: G06F9/5038

    摘要: A method and system for job backfill scheduling dedicated heterogeneous nodes in a multi-node computing environment. Heterogeneous nodes are grouped into homogeneous node sub-pools. For each sub-pool, a free node schedule (FNS) is created so that the number of to chart the free nodes over time. For each prioritized job, using the FNS of sub-pools having nodes useable by a particular job, to determine the earliest time range (ETR) capable of running the job. Once determined for a particular job, scheduling the job to run in that ETR. If the ETR determined for a lower priority job (LPJ) has a start time earlier than a higher priority job (HPJ), then the LPJ is scheduled in that ETR if it would not disturb the anticipated start times of any HPJ previously scheduled for a future time. Thus, efficient utilization and throughput of such computing environments may be increased by utilizing resources otherwise remaining idle.

    摘要翻译: 一种用于在多节点计算环境中作业回填调度专用异构节点的方法和系统。 异构节点分为同构节点子池。 对于每个子池,创建一个空闲节点调度(FNS),以便随时间图表空闲节点的数量。 对于每个优先排序的作业,使用具有由特定作业可用的节点的子池的FNS来确定能够运行作业的最早时间范围(ETR)。 一旦确定了一个特定的工作,安排该工作在该ETR中运行。 如果为较低优先级作业(LPJ)确定的ETR具有早于较高优先级作业(HPJ)的开始时间,则如果LPJ不会打扰预先安排的任何HPJ的预期启动时间 未来时间。 因此,可以通过利用否则保持空闲的资源来增加这种计算环境的有效利用率和吞吐量。

    Method for choosing replacement lines in a two dimensionally redundant
array
    4.
    发明授权
    Method for choosing replacement lines in a two dimensionally redundant array 失效
    在二维冗余阵列中选择替换线的方法

    公开(公告)号:US4751656A

    公开(公告)日:1988-06-14

    申请号:US838000

    申请日:1986-03-10

    CPC分类号: G11C29/72

    摘要: A method of assigning replacement rows and colums in a two dimensionally redundant array in which if the number of failures along a row exceeds the number of remaining redundant columns, then replacing that row with one of the redundant rows. The process is repeated in the opposite direction with the number of remaining redundant rows and columns being properly decremented. The process of reversing directions continues until the above condition is no longer satisfied.

    摘要翻译: 在二维冗余阵列中分配替换行和列的方法,其中如果一行中的故障数量超过剩余冗余列的数量,则用其中一个冗余行替换该行。 该过程在相反方向重复,剩余的冗余行和列的数量被正确递减。 反转方向的过程将持续到上述条件不再满足为止。

    Pre-engineered pills for the improvement of drilling muds
    5.
    发明授权
    Pre-engineered pills for the improvement of drilling muds 有权
    用于改善钻井泥浆的预先设计的药丸

    公开(公告)号:US07772161B2

    公开(公告)日:2010-08-10

    申请号:US11593894

    申请日:2006-11-07

    申请人: Robert R. Wood

    发明人: Robert R. Wood

    IPC分类号: C09K8/24 C09K8/32 E21B43/16

    CPC分类号: C09K8/52 C09K8/50 C09K8/516

    摘要: The invention relates to the use of pre-engineered pills for use with drilling mud. By introducing pills of ground elastomer into the well, the pills can improve the lubricity of the mud as well as aiding in wellbore cleaning, prevention of bit balling and reduction of fluid loss to thief zones.

    摘要翻译: 本发明涉及使用预先设计的药丸用于钻井泥浆。 通过将钻井弹性体丸引入井中,丸剂可以改善泥浆的润滑性,并有助于井筒清洗,防止钻头的磨损和减少泄漏区域的流体损失。