专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2022003366A1 METHOD OF AND APPARATUS FOR DETERMINING VARIATIONS IN WALL THICKNESS IN FERROMAGNETIC TUBES 审中-公开
公开(公告)号：WO2022003366A1
公开(公告)日：2022-01-06
申请号：PCT/GB2021/051684
申请日：2021-07-02
申请人： REEVES WIRELINE TECHNOLOGIES LIMITED
发明人： ASSOUS, Said , ELKINGTON, Peter Adrian Spencer , BACCIARELLI, Mark
IPC分类号： G01B7/06 , G01N27/83 , E21B47/085 , E21B47/006 , G01B7/10
摘要： A method of determining variations in wall thickness in an elongate, cylindrical, hollow, ferromagnetic tube, such as downhole borehole casing, defining a tube wall, comprises the steps of: a) energizing the tube with an at least longitudinally extending magnetic field generated inside the tube; b) using a magnetic field-detecting logging tool to generate two or more magnetic flux signals generated inside the tube externally of the material of the tube wall resulting from such energizing at plural circumferential locations on the inner surface of the tube and at a plurality of distances along the tube; c) iteratively, one or more times, using a model of the relationship between the two or more magnetic flux signals generated in Step b) and the thickness of the tube wall to derive the thickness profile of the tube wall by using (i) the magnetic permeability of the material of the tube deduced from the magnetic flux signals and (ii) a defect-free flux parameter representative of any non-linearity between the magnetic field strength and magnetic flux density in the tube, the iteration including: d) using the model to calculate an initial approximate wall thickness profile using an initial estimate of the defect-free flux parameter; e) calculating a metric that is representative of the magnitude of one or more physically inadmissible features in or forming part of the thickness profile; f) determining a quantitative norm of the metric of inadmissible features; g) varying the value of the defect-free flux parameter in order to minimize the quantitative norm of the metric of inadmissible features and selecting the defect- free flux parameter corresponding to minimizing of the quantitative norm; and h) generating one or more signals representing the thickness profile resulting from use of selected defect-free flux parameter as the thickness profile of the wall of the tube.

2. 发明申请

WO2021194520A1 METHOD AND SYSTEM FOR MONITORING AND PREVENTING HYDRATE FORMATIONS 审中-公开
公开(公告)号：WO2021194520A1
公开(公告)日：2021-09-30
申请号：PCT/US2020/030233
申请日：2020-04-28
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： BATARSEH, Sameeh Issa
IPC分类号： E21B47/00 , G01N17/00 , G01N29/22 , G01N29/265 , G01N29/44 , B08B9/027 , B08B17/00 , E21B41/0099 , E21B43/32 , E21B47/0025 , E21B47/006 , E21B47/107 , G01N2291/0258 , G01N2291/102 , G01N2291/2634 , G01N29/041 , G01N29/11 , G01N29/225 , G01N29/346 , G01N29/348 , G01N29/4427 , G01N29/4445
摘要： A method for monitoring hydrate formation in an interior of a tube may include deploying a first hydrate controller device at a first location on an exterior surface of the tube. The method may include deploying a second hydrate controller device at a second location on the exterior surface of the tube. The method may include transmitting, by the first hydrate controller device, first acoustic signals towards the interior of the tube. The first acoustic signals may include a first frequency value and a first amplitude value associated to a transmission power level. The method may include receiving, by the second hydrate controller device, the first acoustic signals. The method may include measuring, by the second hydrate controller device, a reception power level of the first acoustic signals.

3. 发明申请

WO2021145933A1 CONTINUOUS ASSESSMENT OF WELL ELEMENTS USING FIBER OPTICS 审中-公开
公开(公告)号：WO2021145933A1
公开(公告)日：2021-07-22
申请号：PCT/US2020/056484
申请日：2020-10-20
申请人： LANDMARK GRAPHICS CORPORATION
发明人： KROCZKA, Sebastian , SOUZA, Welton Danniel , BADIS, Chafaa , CHOKSEY, Kashyap , MAIDA, John
IPC分类号： E21B47/125 , E21B17/00 , E21B47/26 , E21B47/07 , E21B29/10 , E21B47/006 , G01N21/952
摘要： A well system includes a fiber-optic cable positionable downhole along a length of a wellbore. The well system further includes an opto-electrical interface to communicatively couple to the fiber-optic cable to monitor a gas released from a well element within the wellbore. Further, the well system includes a processing device and a memory device that includes instructions executable by the processing device. The instructions cause the processing device to detect hydrogen absorption by the fiber-optic cable within the wellbore and determining a location of deterioration of the well element using the detected hydrogen absorption by the fiber-optic cable.

4. 发明申请

WO2021198530A1 CORROSION EVALUATION OF NESTED CASINGS VIA PULSED EDDY CURRENT 审中-公开
公开(公告)号：WO2021198530A1
公开(公告)日：2021-10-07
申请号：PCT/EP2021/058902
申请日：2021-04-06
申请人： SCHLUMBERGER TECHNOLOGY CORPORATION , SCHLUMBERGER CANADA LIMITED , SERVICES PÉTROLIERS SCHLUMBERGER , SCHLUMBERGER TECHNOLOGY B.V.
发明人： DUBOURG, Isabelle , LEGENDRE, Emmanuel , MEGE, Fabrice , BABA, Rina
IPC分类号： G01V3/28 , G01V3/38 , E21B47/006
摘要： Methods and systems pertaining to a processing system and a downhole logging tool for investigating nested tubulars in a borehole. The downhole logging tool includes a transmitter coil for emitting a broadband excitation signal including one or more step excitations. The downhole logging tool also includes receiver coils including at least two receiver coils spaced apart from the transmitter coil at respective first and second distances from the transmitter, the first and second distances being distinct from each other, and each receiver coil being able to receive a response signal resulting from the excitation signal. The downhole logging tool also includes an acquisition system for recording the excitation signal and the response signal of each receiver coil over time. The processing system derives information indicative of variations in individual thicknesses of the nested casing tubulars based on variations of the response signals over time.

5. 发明申请

WO2021195547A1 SYSTEM AND METHODS FOR DEVELOPING AND DEPLOYING OIL WELL MODELS TO PREDICT WAX/HYDRATE BUILDUPS FOR OIL WELL OPTIMIZATION 审中-公开
公开(公告)号：WO2021195547A1
公开(公告)日：2021-09-30
申请号：PCT/US2021/024452
申请日：2021-03-26
申请人： ASPEN TECHNOLOGY, INC.
发明人： RAO, Ashok , CASTILLO, Pedro, Alejandro Castillo , ZHAO, Hong , KHAN, Mir , HARMSE, Magiel, J.
IPC分类号： E21B47/00 , G06N20/00 , E21B2200/20 , E21B2200/22 , E21B47/006 , G06N5/04
摘要： A method and system for estimating wax or hydrate deposits is desirable for the oil industry and important for assuring flow conditions and production, avoiding downtime, and reducing or preventing costly interventions. The method and system disclosed herein use artificial intelligence and machine learning techniques combined with oil well historical operational sensor data and historical operational event records (such as diesel hot flush, slick line, coil tubing, etc.) to build an oil well model. The method and system enable oil well practitioners to test and validate the built model and deploy the model online to estimate and/or detect wax or hydrate deposition status. By using one or more such models in operating an oil well, users can monitor and/or detect the status of wax of hydrate deposits in an oil well and can optimize production, maintenance, and planning for oil wells.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式