Abstract: A fail-safe method to cement a section of casing string to a formation is provided. The method includes providing the casing string in a wellbore, the casing string comprising a stage tool, a packer, and a sensor. The packer is located vertically below the stage tool and vertically above the sensor on the casing string. The method further includes pumping cement down the casing string and up an annulus to an expected height, the expected height being a vertical distance above the sensor, and detecting a presence or absence of cement with the sensor. If the sensor detects the presence of cement, the stage tool is kept closed and the packer is kept deflated. If the sensor detects the absence of cement, the stage tool is opened and the packer is inflated.

Abstract: A fail-safe method to cement a section of casing string to a formation is provided. The method includes providing the casing string in a wellbore, the casing string comprising a stage tool, a packer, and a sensor. The packer is located vertically below the stage tool and vertically above the sensor on the casing string. The method further includes pumping cement down the casing string and up an annulus to an expected height, the expected height being a vertical distance above the sensor, and detecting a presence or absence of cement with the sensor. If the sensor detects the presence of cement, the stage tool is kept closed and the packer is kept deflated. If the sensor detects the absence of cement, the stage tool is opened and the packer is inflated.

Abstract: A method, apparatus, and non-transitory computer-readable storage medium to objectively assess the quality of software products. The method, apparatus, and non-transitory computer-readable storage medium relate to determining a product maturity level of one or more software products. The disclosure describes a method for acquiring product quality attributes of a software product. Each product quality attribute is assessed by one or more metric parameters which test the software product by mathematical or logical test methodologies. Once evaluated, the one or more metric parameters and the one or more product quality attributes may each be mapped to a capability level based on a capability scale. A maturity level may be mapped from the capability level of the capability level of the one or more product quality attributes to the software product to provide a quality assessment of the software product.