Abstract: A staged cementing device includes a cylindrical body having an inner chamber. A circulating opening and a liquid inlet recess open to the inner chamber are arranged on a wall of the body. An opening assembly is arranged in the body, which has an opening sleeve and an opening seat located in the opening sleeve. Initially the opening sleeve is connected with the body through a first shear pin and covers the circulating opening, and the opening seat is connected with the opening sleeve through a second shear pin and covers the liquid inlet recess. A packer includes a packing valve body and a packer rubber. The packing valve body includes a flow channel in communication with the liquid inlet recess, and the packer rubber includes a liquid reservoir in communication with the flow channel. The second shear pin is sheared off in response to primary cementing procedure.

Abstract: Methods, systems and computer-readable storage media relate to generating quantitative genomic information. The methods may include processing at least one dataset obtained from a data repository, the at least one dataset including raw genomic data and descriptive data. The descriptive data may include experiment data. The methods may also include determining quantitative information for each group of one or more genes of the at least one dataset based on experiment data and/or at least one coordinate system. The quantitative information may correspond to one or more quantitative measures of one or more biological properties associated with a processed genomic dataset. The quantitative information can provide a normalized value that can be compared across different experiment types and thus can provide biological knowledge and insights.