Abstract: A method for operating a wellbore system for producing hydrocarbons from a wellbore in an underground formation in which a working fluid is circulated through the wellbore during operation. The method includes detecting a loss of the working fluid, allocating the loss to one or more layers of the underground formation, determining a ballooning potential of the wellbore based on the allocated loss and a lithology of the one or more layers of the underground formation, detecting an increase in a return flow of the working fluid from the wellbore, and comparing the increase in the return flow to the ballooning potential of the wellbore to determine whether the increase in the return flow is due to an influx of formation fluid into the wellbore. Remedial action may be taken in response to a determination that the increase in the return flow is due to an influx of formation fluid.

Abstract: A method for operating a wellbore system for producing hydrocarbons from a wellbore in an underground formation in which a working fluid is circulated through the wellbore during operation. The method includes detecting a loss of the working fluid, allocating the loss to one or more layers of the underground formation, determining a ballooning potential of the wellbore based on the allocated loss and a lithology of the one or more layers of the underground formation, detecting an increase in a return flow of the working fluid from the wellbore, and comparing the increase in the return flow to the ballooning potential of the wellbore to determine whether the increase in the return flow is due to an influx of formation fluid into the wellbore. Remedial action may be taken in response to a determination that the increase in the return flow is due to an influx of formation fluid.

Abstract: An illuminating glove for provision of light proximate to a hand of a user includes a shell that is hand shaped and flexible. The shell comprises a set of five tubes. An opening is positioned in the shell such that the shell is configured to receive a hand of a user inserted through the opening singly positioning the fingers and thumb of the hand into respective tubes. A power module, a plurality of lights and a controller are coupled to the shell. The controller is operationally coupled to the power module and to each of the plurality of lights. The controller is positioned to selectively couple the lights to the power module, such that the lights are configured to illuminate a space proximate to the shell.