Abstract: Systems and methods include a method for downhole leak detection and prediction in water injection wells. Bulk well operation information for one or more wells is accessed from a database. Real-time pressure and water rate information is received from surface and downhole gauges during operation of a water injection well. Engineered prediction-ready data is generated using the real-time pressure and water rate information by translating the bulk well operation information. Early signs of leakage at sub-surfaces of the water injection well are determined using the engineered prediction-ready data and wellbore dynamics of the water injection well. Information associated the early signs of leakage is provided based on the determining and for presentation to one or more users.

Abstract: A well bridge plug assembly includes a sub body to be positioned in a well, the sub body including an internal fluid pathway extending from a downhole end of the sub body to an uphole end of the sub body. The sub body flows well fluid through the internal fluid pathway in an uphole direction from the downhole end toward the uphole end. A plug nose positioned at the downhole end of the sub body includes an aperture fluidly connected to the internal fluid pathway of the sub body. A flapper element in the internal fluid pathway moves between an open position and a closed position to selectively seal the internal fluid pathway from fluid flow, and a sealing element circumscribing a portion of the sub body selectively seals against a wall of a wellbore.

Abstract: Systems and methods include a method for downhole leak detection and prediction in water injection wells. Bulk well operation information for one or more wells is accessed from a database. Real-time pressure and water rate information is received from surface and downhole gauges during operation of a water injection well. Engineered prediction-ready data is generated using the real-time pressure and water rate information by translating the bulk well operation information. Early signs of leakage at sub-surfaces of the water injection well are determined using the engineered prediction-ready data and wellbore dynamics of the water injection well. Information associated the early signs of leakage is provided based on the determining and for presentation to one or more users.

Abstract: A computer system receives data obtained from multiple hydrocarbon wells. The data includes a first set of downhole temperature logs recorded before detection of one or more wellbore leaks in the multiple hydrocarbon wells. A second set of downhole temperature logs is recorded after detection of the one or more wellbore leaks. The computer system extracts multiple features from the data to generate an N-dimensional feature space. The computer system performs dimensionality reduction on the N-dimensional feature space to generate an M-dimensional feature space, wherein M is less than N. The computer system generates one or more machine learning models trained to determine the one or more wellbore leaks in the multiple hydrocarbon wells based on the M-dimensional feature space.

Abstract: A well bridge plug assembly includes a sub body to be positioned in a well, the sub body including an internal fluid pathway extending from a downhole end of the sub body to an uphole end of the sub body. The sub body flows well fluid through the internal fluid pathway in an uphole direction from the downhole end toward the uphole end. A plug nose positioned at the downhole end of the sub body includes an aperture fluidly connected to the internal fluid pathway of the sub body. A flapper element in the internal fluid pathway moves between an open position and a closed position to selectively seal the internal fluid pathway from fluid flow, and a sealing element circumscribing a portion of the sub body selectively seals against a wall of a wellbore.

Abstract: A first wellhead fluid sample is collected from a petroleum well. Multiple geochemical water analysis (GWA) tests are preformed to form GWA water analysis data. The GWA tests determine physical properties of, and one or more geochemical water element (GWE) concentration values associated with, the first wellhead fluid sample. Correlation data associated with the GWA water analysis data is determined. A second wellhead fluid sample is collected from the petroleum well and only a water conductivity analysis is performed on the second wellhead fluid sample to determine water conductivity data.

Abstract: A first wellhead fluid sample is collected from a petroleum well. Multiple geochemical water analysis (GWA) tests are preformed to form GWA water analysis data. The GWA tests determine physical properties of, and one or more geochemical water element (GWE) concentration values associated with, the first wellhead fluid sample. Correlation data associated with the GWA water analysis data is determined. A second wellhead fluid sample is collected from the petroleum well and only a water conductivity analysis is performed on the second wellhead fluid sample to determine water conductivity data.