Patents Assigned to PetroChina Company Limited
  • Patent number: 10866128
    Abstract: The embodiments of the present application disclose a method and an apparatus for determining flow rates of components of multiphase fluid. The method comprises: performing a first magnetization treatment and a second magnetization treatment on multiphase fluid in a pipeline in a target oil and gas well, respectively, to obtain first magnetized multiphase fluid and second magnetized multiphase fluid; determining a first echo train signal set and a second echo train signal set corresponding to the first magnetized multiphase fluid and the second magnetized multiphase fluid, respectively; determining contents of an oil phase component, a water phase component, and a gas phase component of the multiphase fluid at a specified horizon position, and determining a flow velocity of the multiphase fluid at the specified horizon position; and determining flow rates of the oil phase component, the water phase component and the gas phase component in the multiphase fluid.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: December 15, 2020
    Assignee: PETROCHINA COMPANY LIMITED
    Inventors: Feng Deng, Ruidong Zhao, Junfeng Shi, Xin Zhang, Jianjun Zhang, Chunming Xiong, Xishun Zhang, Yi Peng, Shiwen Chen, Wei Yang
  • Patent number: 10845495
    Abstract: A method and device of identifying a fracture are provided in the embodiments of the present application. The method comprises: determining three components of structure quantification for each data point in a seismic data volume; constructing a structure quantification matrix of the data point according to the three components of structure quantification for each of the data points; determining feature value and feature vector of the structure quantification matrix of each of the data points; determining fracture attribute value of the data point according to the feature value and feature vector of the structure quantification matrix of each of the data points; constructing a data volume of the fracture attribute according to the fracture attribute values of respective data points; and performing a fracture extraction for the data volume of the fracture attribute according to the feature vectors of the structure quantification matrix of the respective data points.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: November 24, 2020
    Assignee: PETROCHINA COMPANY LIMITED
    Inventors: Chao Feng, Tuanyu Teng, Qingzhou Yao, Delong Ma, Han Zhang, Lu Yin, Linjun Huang
  • Patent number: 10816532
    Abstract: The present disclosure relates to a method and device for detecting mercury isotopes in crude oil.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: October 27, 2020
    Assignee: PetroChina Company Limited
    Inventors: Guangyou Zhu, Shunlin Tang
  • Patent number: 10808052
    Abstract: The present invention provides a spherical supported transition metal catalyst. The catalyst carrier is a spherical titanium/zirconium hydrophosphate compound, the primary catalyst is a transition metal compound, the co-catalyst is methylaluminoxane; the spherical titanium/zirconium hydrophosphate compound comprises one or several combinations of titanium hydrophosphate, modified titanium hydrophosphate and zirconium hydrophosphate. The present invention also provides a preparation method of said spherical supported transition metal catalyst and a use thereof in olefin polymerization, as well as the spherical titanium/zirconium hydrophosphate compound and its preparation method. The spherical, supported transition metal catalyst in the present invention has a high catalytic activity, and the polymer particles obtained have good morphology.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: October 20, 2020
    Assignee: PetroChina Company Limited
    Inventors: Yuan Yuan, Tianxu Sun, Jianjun Yi, Shan Xue, Kefeng Wang, Kuilong Tan, Li Wang, Rongbo Li
  • Patent number: 10800892
    Abstract: A nano-emulsion composition having a small particle size and ultra-low concentration and a preparation method thereof is disclosed. The raw materials of the composition comprise, in terms of percentage by weight, 0.002% to 0.2% of a polymer-containing homogeneous microemulsion, water, and 99.998% to 99.8% of an organic salt solution or inorganic salt solution. The composition is prepared by diluting a polymer-containing homogeneous microemulsion with water or a salt solution. The polymer-containing homogeneous microemulsion is formed by mixing the following raw materials, in terms of percentage by weight: 8% to 40% of a surfactant, 0.5% to 10% of a polymer, 10% to 30% of an alcohol, 3% to 30% of an oil, 0% to 20% of a salt, and balance of water. The composition of the invention is low in concentration, low in cost, narrow in particle size distribution, good in stability, simple in preparation, and convenient for storage and use.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: October 13, 2020
    Assignees: China University of Petroleum-Beijing, KMS OIL FIELD CHEMICALS & TECHNICAL SERVICES LTD., Zhong Shi Da Engineering Research Center Co. Ltd., PetroChina Company Limited
    Inventors: Fujian Zhou, Erdong Yao, Jiangwen Xu, Zhao Luo, Yuan Li, Xiuhui Li, Jiaxin Sun, Xiongfei Liu, Jie Zuo, Xugang Wang, Cuihong Zhou
  • Patent number: 10800963
    Abstract: The present disclosure provides a pressure-reducing and injection-enhancing anti-scaling agent for low-permeability water-injection wells and a preparation method thereof. The anti-scaling agent is prepared from starting materials comprising: 10 to 12 parts of non-ionic surfactant(s), 18 to 20 parts of hexasodium triethylenetetramine-N,N,N?,N?,N??,N??-hexaacetate, 5 to 8 parts of anionic surfactant(s), 6 to 8 parts of an organic phosphonic acid-carboxylic acid scale inhibitor, 2 to 5 parts of a dispersant, 15 to 18 parts of a diluent, 8 to 10 parts of an organic amine salt, and 30 to 36 parts of water. The pressure-reducing and injection-enhancing agent according to the present disclosure is characterized by having multiple functions in one agent. When used in an amount being 0.5% of the water injected to a water injection well, it shows excellent anti-swelling property, shrinking property, anti-corrosive property, and calcium sulfate and barium (strontium) sulfate scale resistance.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: October 13, 2020
    Assignee: PetroChina Company Limited
    Inventors: Lei Sui, Suiwang Zhang, Xiaobing Lu, Hongjun Lu, Lijun Mu, Yong Wang, Zhaojie Song, Zhiying Deng, Erzhen Wang
  • Patent number: 10800717
    Abstract: The present invention relates to a palladium-based supported hydrogenation catalyst and a preparation method and application thereof. The catalyst is prepared by the following method: impregnating an Al2O3-containing carrier with an organic solution containing a bipyridine derivative having hydroxy group, optionally drying followed by impregnating with a mixed solution containing the main active component palladium ions and the auxiliary active component Mn+ ions, where M is one selected from Ag, Au, Ni, Pb and Cu; and then optionally drying, and calcining to obtain the catalyst. The preparation method provided by the present invention allows Pd atoms and M atoms to be highly uniformly dispersed on the carrier, which overcomes the adverse impact of the surface tension of the impregnation solution and the solvation effect on the dispersibility of active components.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: October 13, 2020
    Assignee: PetroChina Company Limited
    Inventors: Chunxia Che, Yulong Liang, Ying Qian, Wei Han, Feng Zhang, Galian Gou, Xilin Jing, Xiaoxin Chang, Qiang Gui, Lifen Gu, Wei Xie, Zhongdong Zhang, Dehua Huang, Duping Tan, Yuan Gao, Lin Cheng
  • Patent number: 10801934
    Abstract: The present invention discloses a rock mechanics experiment system for simulating deep-underground environment, including a triaxial chamber consisting of a chamber cavity and a test pedestal, a stress field building module, a high pressure seepage field building module, a high temperature field building and a seepage medium permeating control measurement module arranged in the triaxial chamber, a lifting module used for installing and disassembling of the chamber cavity, and computer module used for controlling the operation of system and calculating and outputting the test data. The lifting module includes a door-shaped support frame, a cylinder piston device vertically mounted on the door-shaped support frame beam, a coupling device and a safety suspension device. The coupling device includes an oil hydraulic rod with the upper end fixedly coupled with the piston, a safety disk fixedly coupled with the lower end of the hydraulic rod, and two symmetrically disposed coupling assemblies.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: October 13, 2020
    Assignees: SICHUAN UNIVERSITY, RESEARCH INSTITUTE OF PETROLEUM EXPLORATION & DEVELOPMENT, PETROCHINA COMPANY LIMITED
    Inventors: Jianfeng Liu, Guosheng Ding, Zhide Wu, Qiqi Wanyan, Lina Ran, Jianliang Pei, Lu Wang, Huining Xu, Chunping Wang, Yilin Liao, Qiangxing Zhang, Xiaozhang Lei, Wenxi Fu, Min Zhang
  • Patent number: 10794869
    Abstract: The present invention discloses an acoustic emission sensor, including an acoustic emission probe, a probe installation mechanism, and a transmission mechanism transmitting a combination of the acoustic emission probe and the probe installation mechanism to a setting position in a borehole of a monitored rock mass; the probe installation mechanism includes a shell, a probe sleeve, a spring sleeve, a spring, and a fixed pulley component; the probe sleeve is installed in the guide cylinder of the shell, the spring sleeve is fixed on two sides of the probe sleeve, the spring is installed inside the spring sleeve; one end of the first rope in the fixed pulley component is fixedly connected to the end cap in the upper end surface of the probe sleeve through the fixed pulley mounted on the top of the inner wall of the shell.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: October 6, 2020
    Assignees: SICHUAN UNIVERSITY, RESEARCH INSTITUTE OF PETROLEUM EXPLORATION & DEVELOPMENT, PETROCHINA COMPANY LIMITED
    Inventors: Jianfeng Liu, Huining Xu, Jianliang Pei, Lu Wang, Chunping Wang, Xiaozhang Lei, Wenxi Fu, Jianhui Deng
  • Publication number: 20200300082
    Abstract: The invention discloses a calculation method for dynamic fluid loss of acid-etched fracture considering wormhole propagation, which is applied to pad acid fracturing process, comprising the following steps: Step 1: dividing the construction time T of injecting acid fluid into artificial fracture into m time nodes at equal intervals, then the time step ?t=T/m and tn=n?t, where, n=0, 1, 2, 3, . . . , m, and to is the initial time; Step 2: calculating the fluid loss velocity vl(0) in the fracture at t0; Step 3: calculating the flowing pressure distribution P(n) in the fracture at tn; Step 4: calculating the width wa(n) of acid-etched fracture at tn; Step 5: calculating the wormhole propagation and the fluid loss velocity vl(n) at tn; Step 6: substituting the fluid loss velocity vl(n) into Step 3, and repeating Step 3 to Step 6 in turn until the end of acid fluid injection.
    Type: Application
    Filed: June 11, 2020
    Publication date: September 24, 2020
    Applicants: SOUTHWEST PETROLEUM UNIVERSITY, PETROCHINA COMPANY LIMITED
    Inventors: Pingli Liu, Xiang Chen, Heng Xue, Honglan Zou, Liqiang Zhao, Nianyin Li, Daocheng Wang, Zhifeng Luo, Juan Du, Chong Liang, Mingyue Cui, Fei Liu, Changlin Zhou, Rong Zeng
  • Patent number: 10759667
    Abstract: The present invention provides an amphiphilic molecular sieve containing a hydrophilic group on the outside and a lipophilic group on the inside and a production method thereof. The production method comprises: dispersing the ZSM-5 spherical nano-molecular sieve into toluene, adding thereto an organosilane containing a hydrophilic group and reacting at 40-80° C. for 2-16 h, to obtain a molecular sieve containing a hydrophilic group; placing the molecular sieve containing a hydrophilic group in an aqueous solution of sodium hydroxide and reacting at 50-90° C. for 10-50 min, to obtain a molecular sieve containing a hydrophilic group on the outside; dispersing the molecular sieve containing a hydrophilic group on the outside into toluene, adding thereto an organosilane containing a lipophilic group and reacting at 40-80° C. for 2-12 h, to obtain the amphiphilic molecular sieve containing a hydrophilic group on the outside and a lipophilic group on the inside.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: September 1, 2020
    Assignee: PetroChina Company Limited
    Inventors: Jianhui Luo, Zongtao Zhang, Baoliang Peng, Runwei Wang, Lipeng He, Pingmei Wang, Bin Ding, Ying Wang, Xiangfei Geng
  • Patent number: 10759819
    Abstract: The present disclosure provides a single-side modified ?-Anderson-type heteropolymolybdate organic derivative having an anionic moiety with a general formula represented by: ?-{[RC(CH2O)3]M(OH)3Mo6O18}3?; ? represents a non-planar folded structure; R=substituted or unsubstituted phenyl, CnH2nX (n is an integer from 0 to 22; X?H, OH, NH(CH2)3SO3H, NHCH2COOH, NH2, or NO2); M=Cr3+. The single-side modified ?-Anderson-type heteropolymolybdate organic derivative can be prepared under hydrothermal conditions.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: September 1, 2020
    Assignee: PETROCHINA COMPANY LIMITED
    Inventors: Jianhui Lou, Yongge Wei, Bin Ding, Jiangwei Zhang, Pingmei Wang, Jin Zhang, Xiangfei Geng, Zheyu Wei, Baoliang Peng, Lipeng He
  • Patent number: 10739477
    Abstract: The invention discloses an omnidirectional vector geophone, comprising: eight wave detectors and support structures thereof, the support structures are used for supporting the eight wave detectors such that bottom surfaces of each two wave detectors are on one of regular triangle surfaces of a regular tetrahedron, crossing points of working shafts of the two wave detectors that are on the same regular triangle surface that cross with the regular triangle surface are both on an angular bisector of an angle of the regular triangle surface and are symmetric with respect to the center of the regular triangle surface. In the invention, based on divergence and curl equations of field theory, a particular spatial motion full-vector detection structure is designed to realize detection of full information including frequency, amplitude, phase, vibration direction of the seismic wave field, especially divergence and curl of a wave force field, to form a completely new omnidirectional vector geophone structure.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 11, 2020
    Assignee: PETROCHINA COMPANY LIMITED
    Inventor: Likang Chen
  • Patent number: 10731451
    Abstract: An exploitation method and an exploitation well pattern for coalbed methane in a low-permeability coalbed. The method comprises: determining a maximum principal stress direction in a low-permeability coalbed; disposing at least two large-roadway horizontal wells in the low-permeability coalbed; disposing a plurality of production wells on two sides of a horizontal segment of each of the at least two large-roadway horizontal wells, wherein a diameter of each of the production wells is smaller than a diameter of the horizontal segment; exploiting the coalbed methane in the low-permeability coalbed through the at least two large-roadway horizontal wells and the plurality of production wells. Through the horizontal segments of the large-roadway horizontal wells perpendicular to the maximum principal stress direction, it promotes stress release in low-permeability coalbed to form more fracture channels, thereby improving the exploitation efficiency of the coalbed methane in the low-permeability coalbed.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: August 4, 2020
    Assignee: PetroChina Company Limited
    Inventors: Yonggui Mei, Quanjiang Zhang, Biyun Zhu, Xianzhi Wang, Jian Guo, Wuchang Zhang, Xiaohua Lian, Shengfa Mao, Zhanxin Xue, Liuping Deng
  • Patent number: 10718875
    Abstract: The invention discloses an omnidirectional vector electrostatic levitation geophone, comprising: a regular tetrahedron hollowed-out structure, and an inner hollowed-out base and an outer hollowed-out base that are provided inside and outside the regular tetrahedron hollowed-out structure and at equal distance from the regular tetrahedron hollowed-out structure, and have the same structure as and different size from the regular tetrahedron hollowed-out structure; the regular tetrahedron hollowed-out structure has a solid part and a hollowed-out part of each surface thereof, the solid part is a quadrangle divided from angular bisectors of two angles on each surface and an isosceles triangle that abuts the solid part by a surface central point, and the hollowed-out part is two triangles that are divided from the angular bisectors of the two angles and abut each other by a surface center.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: July 21, 2020
    Assignee: PETROCHINA COMPANY LIMITED
    Inventor: Likang Chen
  • Patent number: 10710886
    Abstract: The invention provides a method for synthesizing a mesoporous zeolite ETS-10 containing a metal without a templating agent. The method according to the invention comprises the steps of: mixing a silicon source with a NaOH solution to obtain a mixed solution so that the content of Na2O in the mixed solution is 10.0% to 20.0% by weight; adding a KOH or KF solution so that the content of K2O is 10.0% to 25.0% by weight and stirring it well; adding a titanium source solution and stirring it well; adding a precursor compound containing metal Ni and/or Co and stirring it well; and subjecting it to a crystallization reaction to obtain the mesoporous zeolite ETS-10. The mesoporous zeolite ETS-10 obtained by the invention has a specific surface area of 320 to 420 m2/g, a mesoporous volume of 0.11 to 0.21 cm3/g, and thus can be used as a catalyst and a support thereof in synthesis industry for macromolecular fine chemicals.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: July 14, 2020
    Assignee: PetroChina Company Limited
    Inventors: Tiegang Xu, Tiandi Tang, Wenqian Fu, Lei Zhang, Runsheng Shen, Guoren Cai, Baoli Ma, Weichi Xu, Guangming Wen, Jinhe Song, Dan Wang, Mingwei Tan, Wencheng Zhang, Jintao Guo, Gang Wang, Quanguo Zhang, Xianjun Wu, Liyan Guo, Lei Fang, Liru Cong, Guojia Zhang, Chunming Dong, Yu Liang
  • Patent number: 10705238
    Abstract: The present disclosure discloses a method and an apparatus for processing seismic data, and belongs to the field of geological surveys. The method comprises: stacking seismic trace gathers in a predetermined range among S seismic trace gathers after a Normal Move Out (NMO) correction processing to obtain a model trace, S being an integer; calculating a correlation coefficient of each seismic trace gather with the model trace, and selecting a K-th seismic trace gather with a maximum correlation coefficient; calculating an optimum point of each seismic trace gather from the K-th seismic trace gather to two sides orderly; and performing a residual NMO correction of the seismic trace gathers according to the optimum points.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: July 7, 2020
    Assignee: PETROCHINA COMPANY LIMITED
    Inventors: Guangrong Zhang, Fusen Xiao, Qi Ran, Shirong Zhang, Yi Yu, Qi Liao, Bo Ma, Han Liang, Kang Chen, Xuan Zhang, Xiaomin Lu
  • Publication number: 20200190409
    Abstract: The present invention provides a low viscosity poly-?-olefin lubricating oil and a synthesis method thereof. The method comprises: (1) the ?-olefin raw material is subjected to dehydration treatment so that the water content in the raw material is ?10 ppm; (2) a reaction of the dehydration treated ?-olefin raw material is carried out in the presence of a complex catalyst and gaseous BF3 to obtain a reaction product, wherein the pressure of the gaseous BF3 is 0.01 to 1 MPa; (3) the reaction product obtained in step (2) is sequentially subjected to flash distillation, gas stripping, centrifugation, and washing treatment to obtain an intermediate product; (4) the intermediate product obtained in step (3) is subjected to distillation under reduced pressure to separate the unreacted ?-olefin raw material and ?-olefin dimers, and the remaining heavy fractions are subjected to hydrogenation saturation treatment followed by fractionation and cutting-off.
    Type: Application
    Filed: October 24, 2019
    Publication date: June 18, 2020
    Applicant: PETROCHINA COMPANY LIMITED
    Inventors: Hongling CHU, Sihan WANG, Kecun MA, Xianming XU, Libo WANG, Guizhi WANG, Yan JIANG, Legang FENG, Yulong WANG, Enhao SUN, Hongliang HUO, Tong LIU, Yali WANG, Xiuhui WANG, Han GAO, Yuanyuan CAO, Fengrong WANG, Weihong GUAN, Ruhai LIN, Xuemei HAN, Yunguang HAN, Fuling HUANG, Buwei YU
  • Patent number: 10682619
    Abstract: The present invention provides a nano-silica dispersion having amphiphilic properties and a double-particle structure and its production method. The production method comprises: producing a lipophilically modified nano-silica alcosol which is denoted as a first reaction solution by adding a silane coupling agent containing a lipophilic group to a nano-silica alcosol as a raw material; producing a hydrophilically modified nano-silica alcosol which is denoted as a second reaction solution by adding a silane coupling agent containing a hydrophilic group into a nano-silica alcosol as a raw material; producing the nano-silica dispersion having amphiphilic properties and a double-particle structure by adding 3-aminopropyltriethoxysilane to the first reaction solution, stirring, then mixing the resultant with the second reaction solution. The present invention further provides a nano-silica dispersion having amphiphilic properties and a double-particle structure produced by the above production method.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: June 16, 2020
    Assignee: PetroChina Company Limited
    Inventors: Jianhui Luo, Bo Jiang, Lipeng He, Pingmei Wang, Baoliang Peng, Jie Yang, Bin Ding, Yuanyang Li, Xiangfei Geng
  • Patent number: 10683459
    Abstract: Provided are a liquid-phase hydroisomerization system and a process therefor and use thereof. The system comprises a gas-liquid mixer (3), a hydroisomerization reactor (4) and a fractionating column (6). An oil product and hydrogen are mixed as a liquid hydrogen-oil mixture, and are introduced into the hydroisomerization reactor for a hydroisomerization reaction, and after being fractionated, a target product is led out. A supplemental hydrogen-dissolving inner member is provided at least between a group of two adjacent catalyst bed layers in order to supplement hydrogen to the reactants. The process cancels a circulating hydrogen compressor, has a simple process flow, and can be applied to the production of a lubricant base oil by the hydroisomerization of a lubricant raw material or the production of a low freezing point diesel by the hydroisomerization of and the reduction in the freezing point of a diesel raw material.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: June 16, 2020
    Assignee: PetroChina Company Limited
    Inventors: Shoutao Ma, Xiaoqiao Huang, Famin Sun, Qingfeng Ma, Fangming Xie, Yongsheng Duan, Xianjun Wu, Fengxuan Li, Dongmei Ge, Endong Xia, Ruifeng Li, Ronglei Ji, Liying Liu, Lihong Qin, Xiangbin Meng, Chunming Dong, Xuefeng Lu, Rui Wang, Tiegang Xu, Shurong Ni