Method and system for generating contradiction scores for petroleum geoscience entities within text using associative topic sentiment analysis

    公开(公告)号:US10861064B2

    公开(公告)日:2020-12-08

    申请号:US16005712

    申请日:2018-06-12

    IPC分类号: G06N20/00 G06Q30/02 G06Q50/00

    摘要: The invention is a data processing method and system for notifying petroleum geoscientists of contradictions in sentiment between petroleum geoscience topic associations in text. The data processing system makes the necessary calculations to detect petroleum geoscience associations of interest, predict their sentiment and report contradictions in sentiment. Contradictions can be calibrated with past business success and failures through time, such as exploration or operations, to create a classifier to predict future areas of opportunity and risk. In particular, the data processing system operates on any digital unstructured text derived from academic literature, company reports, web pages and other sources. This information is analyzed and utilized by the system assisting petroleum geoscientists to identify business opportunities and risks.

    Modeling Fluid Flow In A Wellbore For Hydraulic Fracturing Pressure Determination

    公开(公告)号:US20200380186A1

    公开(公告)日:2020-12-03

    申请号:US16849196

    申请日:2020-04-15

    摘要: A method for modeling fluid flow in a wellbore is provided. Hydraulic fracturing is an effective technique to improve well productivity by forming high permeable pathways for hydrocarbons to flow from the rock formation to the wellbore. Fluid flow for hydraulic fracturing is modeled using separated flow components, including a wellbore component (modeling the wellbore(s)), a perforation component (modeling the perforations(s)), a fracture component (modeling the fracture(s)) and a rock component (modeling the rock). Each respective component may be selected independently from a plurality of available components. Further, the respective components may be coupled to one another only at their interfaces, such as at a wellbore-perforation interface, a perforation-fracture interface, and a fracture-rock interface, for continuity of fluid kinematics and properties (such as pressure and density). In this way, the modeling of the subsurface may be tailored to the respective components in order to effectively predict the fracturing treatment.

    Hydrocarbon Wells Including Gas Lift Valves and Methods of Providing Gas Lift in a Hydrocarbon Well

    公开(公告)号:US20200378223A1

    公开(公告)日:2020-12-03

    申请号:US16863873

    申请日:2020-04-30

    IPC分类号: E21B43/12 E21B34/10

    摘要: Hydrocarbon wells including gas lift valves and methods of providing gas lift in a hydrocarbon well. The hydrocarbon wells include a wellbore extending within a subsurface region and a downhole tubular extending within the wellbore. The downhole tubular defines a tubular conduit, and the wellbore and the downhole tubular define an annular space therebetween. The hydrocarbon wells also include a lift gas supply system configured to provide a lift gas stream to the annular space and a closure material supply system configured to provide a closure material stream to the annular space. The hydrocarbon wells further includes a gas lift valve operatively attached to the downhole tubular. The gas lift valve includes a lift gas injection conduit and an actuation mechanism. The actuation mechanism selectively transitions to a closed state responsive to contact with the closure material. The methods include methods of operating the hydrocarbon wells.