Abstract: Methods, systems, and techniques for detecting at least one of an influx event and a loss event during well drilling involve using one or both of errors between 1) estimated and measured pit volume, and 2) estimated and measured flow out, to identify or determine whether the influx or loss event is occurring, or to sound some other type of related alert. These determinations may be performed in a computationally efficient manner, such as by using one or both of a time and depth sensitive regression.

Abstract: Methods, systems, and techniques for detecting at least one of an influx event and a loss event during well drilling involve using one or both of errors between 1) estimated and measured pit volume, and 2) estimated and measured flow out, to identify or determine whether the influx or loss event is occurring, or to sound some other type of related alert. These determinations may be performed in a computationally efficient manner, such as by using one or both of a time and depth sensitive regression.

Abstract: Methods, systems, and techniques for detecting at least one of an influx event and a loss event during well drilling involve using one or both of errors between 1) estimated and measured pit volume, and 2) estimated and measured flow out, to identify or determine whether the influx or loss event is occurring, or to sound some other type of related alert. These determinations may be performed in a computationally efficient manner, such as by using one or both of a time and depth sensitive regression.

Abstract: A reconfigurable entertainment device is disclosed, wherein the device includes a housing having an opening leading to a play implement receiving region. The entertainment device also includes at least one play implement for being retrieved from the play implement receiving region through the opening. The housing also includes an attachment member used to selectively secure the device to a child receiving device such a crib, stroller, car seat, swing, bassinet, bouncer, etc. The entertainment device of the present invention is configurable in at least first and second modes of use. In a first mode of use, the attachment member is used to connect the housing to a child receiving device such that the opening of the housing, and thus the play implements, are exposed to a child in the child receiving device. In a second mode of use, the entertainment device is supported in a freestanding manner by a supporting surface (e.g., a floor, blanket, mattress, play-mat, etc.).