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41.发明公开公开(公告)号：US20230141064A1
公开(公告)日：2023-05-11
申请号：US17983412
申请日：2022-11-09
Inventor： Jin ZHU , Yongle LI , Mengxue WU , Xu HUANG
CPC classification number: G01M5/0008 , G01M5/0075 , G01W1/02 , G01W2001/006
Abstract: A movable system for automatically monitoring the correlated wind and temperature filed of a bridge, including a bridge monitoring subsystem, a cloud server, and a client. The system monitors the meteorological parameters of a bridge surface and a temperature of a bridge structure, performs data analysis and processing on a cloud server, and performs visual data interaction by using a client. A bridge surface-specific meteorological parameter monitoring module is movable, such that the location of the sensor for meteorological data monitoring can be adjusted at any time to monitor an entire bridge deck in a time-sharing manner. A lower cantilever structure has an adjustable height, such that the sensor for meteorological data monitoring can track a height of a boundary layer of the bridge surface. A bridge structure-specific temperature monitoring module adopts distributed patch-type temperature sensors, which can detect the temperature of the bridge structure in all directions.
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42.发明申请公开(公告)号：US20230131487A1
公开(公告)日：2023-04-27
申请号：US17778431
申请日：2021-12-10
Inventor： Xiangchen LI , Yousheng CHEN
IPC: E21B21/08
Abstract: A high-temperature and high-pressure drilling fluid inhibition evaluation device includes a main test member, a temperature control pressurization system, a gas source, a circulation heating system, a confining pressure pump, a central control system, a computer, an ultrasonic detector and a safety valve electrically connected through pipelines, respectively, the main test member and the temperature control pressurization system sequentially connected with the gas source; the present disclosure can pre-pressurize experimental fluid and then inject the fluid into a dilatometer, so as to prevent the fluid from generating obvious changes of phase states, eliminate pressure setting errors caused by a saturated vapor pressure of the fluid, improve accuracy of evaluation results, inspect a real expansion state of the sample and simultaneously monitor structural change characteristics of a rock sample in real time through reflection conditions of sound waves.
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公开(公告)号：US20230131096A1
公开(公告)日：2023-04-27
申请号：US17887804
申请日：2022-08-15
Applicant: Southwest Petroleum University
Inventor： Yongjun Hou , Duyu Hou , Mingjun Du , Pan Fang , Yuwen Wang
Abstract: Disclosed is an independent double-negative-pressure shale shaker, and belongs to the technical field of petroleum drilling solid control. The independent double-negative-pressure shale shaker comprises a base, a fluid discharge device, an inclination angle adjustment mechanism, a screening device, an exciting motor and a double-negative-pressure system, wherein the double-negative-pressure system comprises a first negative-pressure system and a second negative-pressure system which are relatively independent; the first negative-pressure system dries drilling fluid of a first screen mesh set close to a material outlet, and the second negative-pressure system increases the treatment capacity of drilling fluid of a second screen mesh set close to the first screen mesh set; and meanwhile, in the deep well section, the second negative-pressure system can be switched to a fluid mist suction state, fluid mist on the screen surface is reduced, the safety is improved, and the pollution of fluid mist is reduced.
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公开(公告)号：US20230118402A1
公开(公告)日：2023-04-20
申请号：US17802545
申请日：2022-06-16
Applicant: Southwest Petroleum University
Inventor： Gang XIE , Ruolan WANG , Jinjun HUANG , Yang BAI
IPC: C09K8/512 , C09K8/34 , C08K9/06 , C08F220/06 , C08F220/56
Abstract: The invention discloses an organic-inorganic nanocomposite gel sealing agent and oil-based drilling fluid. The sealing agent used for the oil-based drilling fluid is organic-inorganic nanocomposite gel, and the synthetic raw materials of the organic-inorganic nanocomposite gel includes molybdenum disulfide, 2-ethyl acrylic acid, N, N-dimethylacrylamide and N,N-methylene bisacrylamide; the drilling fluid includes the organic-inorganic nanocomposite gel provided by the invention. The organic-inorganic nanocomposite gel is used as a nano sealing agent, the particle size distribution of the organic-inorganic nanocomposite gel is 50-200 nm, the organic-inorganic nanocomposite gel can effectively prevent drilling fluid filtrate from intruding into stratums and prevent accidents such as borehole wall collapse, the organic-inorganic nanocomposite gel is particularly suitable for nano-sealing of shale stratums, and the preparation method of the organic-inorganic nanocomposite gel is reliable in principle and has a wide market prospect.
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公开(公告)号：US11630043B2
公开(公告)日：2023-04-18
申请号：US17648812
申请日：2022-01-25
Applicant: SOUTHWEST PETROLEUM UNIVERSITY
Inventor： Zhi Zhang , Jie Yang , You Wu , Jian Ding , Jiawei Wang
IPC: G01N3/56
Abstract: The present disclosure provides an experimental device for simulating the erosion of a tubing string caused by sand production. The experimental device includes an autoclave, a circulating assembly, a power assembly, a monitoring assembly, or a three-phase feeding assembly. The circulating assembly is sealed and arranged in the autoclave, the circulating assembly includes a circulation loop formed by straight pipes and elbows. The power assembly includes a pump arranged on the circulation loop. The monitoring assembly includes a flowmeter and a temperature and pressure sensor for detecting the circulation loop, and the temperature and pressure sensor is communicatively connected with a PC. The three-phase feeding assembly includes a feeding pipe that is in fluid communication with the circulation loop, and the feeding pipe is connected with one or more gas tanks, a sander feeder, and one or more liquid tanks, respectively.
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Patent Agency Ranking
公开(公告)号：US11618847B2
公开(公告)日：2023-04-04
申请号：US17235903
申请日：2021-04-20
Applicant: SOUTHWEST PETROLEUM UNIVERSITY
Abstract: The present disclosure discloses methods for preparing an in-situ nano emulsifier. The preparation method may include obtaining a solution by dissolving hydrated ferric chloride (or ferric chloride) and hydrated ferrous sulfate (or ferrous sulfate) into deionized water at a first temperature; obtaining an ethanol solution dissolved with an oil-soluble surfactant by dissolving an oil-soluble surfactant into ethanol at a second temperature; and adding a certain volume of ammonia water and the ethanol solution dissolved with the oil-soluble surfactant in the solution to obtain an in-situ nano emulsifier. The in-situ nano emulsifier may be applied to development of the oil reservoir through an application process. The application process may include preparing a nano emulsifier solution and a surfactant solution; sequentially injecting the surfactant solution and the nano emulsifier solution into a formation; and injecting a spacer liquid slug into the formation for replacement.
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公开(公告)号：US20230080032A1
公开(公告)日：2023-03-16
申请号：US18053424
申请日：2022-11-08
Applicant: SOUTHWEST PETROLEUM UNIVERSITY
Inventor： Gang XIE , Ruolan WANG , Jinjun HUANG , Yang BAI
Abstract: Disclosed are a high-temperature-resistant tertiary amine-grafted silica nano-plugging agent and water-based drilling fluids, relating to oil-gas field drilling. The nano-plugging agent is prepared from a hydrazine compound, a diallyl compound, an enamine compound, silica particle, and an amino-containing silane coupling agent by stepwise reaction. The nano-plugging agent has a grain size of 58-280 nm.
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公开(公告)号：US11604132B1
公开(公告)日：2023-03-14
申请号：US17837499
申请日：2022-06-10
Applicant: Southwest Petroleum University
Inventor： Yu Peng , Yitao Huang , Yongming Li , Ang Luo , Pengjun Shi
Abstract: The present invention discloses a testing device and evaluation method for sensitivity damage of core permeability tensor, comprising the following steps: first, obtain the cubic experimental rock samples and calculate the formation pressure distribution based on the reservoir geological data; then simulate the true stress and strain state of core in formation through triaxial stress loading, design the acid liquor, alkali liquor, inorganic salt solution, formation water and different displacement rates for displacement experiments, realize the determination of core three-directional permeability tensor under the same experimental conditions through three-directional sequential displacement, process the experimental data through Darcy's law, and calculate the damage degree of core permeability tensor under different sensitivity conditions of triaxial stress state; finally, identify the real-time flow state of fluid through permeability tensor synthesis, and realize the accurate and efficient testing and evaluation on permeability tensor sensitivity of reservoirs.
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49.发明授权公开(公告)号：US11598205B1
公开(公告)日：2023-03-07
申请号：US17837545
申请日：2022-06-10
Applicant: Southwest Petroleum University
Inventor： Yu Peng , Ang Luo , Yongming Li , Pengjun Shi , Hu Jia , Cheng Chang
Abstract: The present invention discloses a method for comprehensive evaluation of shale fracability under the geology-engineering “double-track” system, comprising the following steps: S1: Divide the target horizontal fracturing interval into multiple sampling sections; S2: Establish the reservoir property evaluation factor of each sampling section, and calculate the geological evaluation index of the target horizontal fracturing interval according to the reservoir property evaluation factor of each sampling section; S3: Establish the brittleness factor, natural fracture factor and natural fracture opening factor of each sampling section, and then establish the engineering evaluation index of each sampling section according to these factors; S4: Calculate the engineering evaluation index of the target horizontal fracturing interval according to the engineering evaluation factor of each sampling section; S5: Evaluate the fracability of the target horizontal fracturing interval according to the geological evaluation index and the engineering evaluation index.
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50.发明授权公开(公告)号：US11566986B2
公开(公告)日：2023-01-31
申请号：US17834075
申请日：2022-06-07
Applicant: SOUTHWEST PETROLEUM UNIVERSITY
Inventor： Xiangchao Shi , Xinhao Yang , Shuai Chen , Yanzhou Chen
Abstract: Disclosed are a rock drilling experimental device and a method for simulating true triaxial conditions of deep well drilling; the device includes an energy supply module, an experimental loading module, a hydraulic supply module, a parameter control module and a data acquisition module. The device provides power through the energy supply module; the experimental loading module applies three directional stresses, a liquid column pressure and a pore pressure to a rock specimen by simulating a formation environment, and simultaneously drills into the rock specimen with a bit; the hydraulic supply module provides a hydraulic pressure to the liquid column pressure, the pore pressure and the three directional stresses in the experimental loading device; and the parameter control module is used to control a displacement module of the experimental loading module to move, and adjust a displacement, the pressure and a temperature to the target values.
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