China University of Petroleum - East China

news.upc.edu.cn/english/
Dongying, China
SEARCH FILTERS
Time filter
Source Type

Patent
China University of Petroleum - East China | Date: 2014-10-20

A sand control screen pipe includes couplings, movable spacer bushes, an outer movable radial slotted screen pipe, a split supporting ring and an inner axial slotted screen pipe. In downhole sand control construction work, a movable combined sand control pipe of axial and radial slotted screen pipes is required to be aligned with an oil layer position, this sand control screen pipe adopts the outer radial slotted screen pipe and the inner axial slotted screen pipe for blocking sand, and the outer radial slotted screen pipe can carry out limited axial movement along the inner axial slotted screen pipe and free rotational motion around the axial line of the inner axial slotted screen pipe, so that the controlled sand can be effectively prevented from hardening and an oil leakage channel is kept smooth for a long time to improve the production efficiency of an oil well.


Patent
China University of Petroleum - East China | Date: 2017-04-09

Hazardous article handing and logistics information system for geological sciences and other purposes, comprising a liquid hazardous article logistics container (A), a Beidou satellite navigation system (B) and a remote control terminal (C). The liquid hazardous article logistics container consists of an outer protective sleeve (1), a liquid storage main body part (2), a main body outer cover part (3), a stabilizer storage mechanism (4), a main body base part (5), a control display part (6), a main body inner cover mechanism (7) and a neutralizer storage and releasing mechanism (8). Various liquid hazardous articles can be kept in a good storage environment, the whole logistics process is tracked and monitored in real time, and a liquid hazardous article logistics container can be controlled to release a neutralizer in an emergency.


The present invention relates to a device and method for measuring supercritical carbon dioxide fracturing fluid throttling coefficient under different viscosities. The device for measuring supercritical carbon dioxide fracturing fluid throttling coefficient under different viscosities comprises a supercritical carbon dioxide fracturing fluid throttling coefficient measurement system and a supercritical carbon dioxide fracturing fluid viscosity adjustment apparatus; the supercritical carbon dioxide fracturing fluid throttling coefficient measurement system determines throttling coefficient of a high temperature and high pressure supercritical carbon dioxide fracturing fluid, and the supercritical carbon dioxide fracturing fluid viscosity adjustment apparatus determines viscosity of the high temperature and high pressure supercritical carbon dioxide fracturing fluid.


Patent
China University of Petroleum - East China | Date: 2015-05-07

A device for evaluating the foaming property of a gas-soluble surfactant, which comprises a gas source part, an evaluating kettle, a liquid part, and an intermediate container part. By means of the rotation of the evaluating kettle, the gas-soluble surfactant and the supercritical carbon dioxide can be sufficiently and evenly mixed with each other when the solubility of the gas-soluble surfactant in the supercritical carbon dioxide is measured.


Patent
China University of Petroleum - East China | Date: 2016-09-20

The present invention relates to offshore oil and gas exploration drilling field and, in particular, to a surface layer conductor running tool for deep-water well drilling, which is used to run a conductor to a designated position, so that the drill stem can be released and the drilling can be continued. The surface layer conductor running tool for deep-water well drilling comprises a mandrel, an inner sleeve, an outer sleeve, and a main body, wherein the inner sleeve, the outer sleeve, and the main body are fitted over the mandrel sequentially; the inner sleeve can slide up and down but cannot rotate in relation to the mandrel, the outer sleeve and the inner sleeve are connected via a transmission thread pair, and the main body is situated on the inner sleeve; a retaining pawl penetrating the main body and radially slidable in horizontal direction; and an anti-rotation pin penetrating the main body and the outer sleeve, so that the outer sleeve can move up and down in the main body only, but cannot rotate.


The present invention relates to an apparatus and a method for monitoring a hydrate decomposition area under different drilling and production processes. The apparatus for monitoring hydrate decomposition area under different drilling and production processes comprises a reaction unit, an auxiliary unit and a determination unit; the reaction unit is used to simulate the hydrate storage layer environment, provide a place for generation and decomposition of a hydrate, simulate a hydrate heat-injection exploitation process, a hydrate pressure-reduction exploitation process and a hydrate CO_(2 )displacement exploitation process, and also analyze the hydrate decomposition status at various areas by calculating the hydrate decomposition rate, thereby evaluating and optimizing the drilling and production process; the auxiliary unit is used to provide a gas source and a liquid source for the reaction unit, and simulate different hydrate drilling and production processes; and the determination unit is used to measure the hydrate decomposition rate in different drilling and production processes.


Patent
Dongfang Hongsheng New Energy Application Technology Research Institute Co. and China University of Petroleum - East China | Date: 2015-12-28

The present invention pertains to the technical field of energy resource chemical industry, and in particular relates to a continuous reaction device and process for synthesizing polyoxymethylene dimethyl ethers by using paraformaldehyde and methylal as feedstock or using trioxane and methylal as feedstock in the presence of an acidic catalyst. The continuous reaction device comprises multiple slurry bed stirred tank reactors connected in series or in combination of series connection and parallel connection, and also comprises an on-line solid-liquid separation device to perform separation of the reaction mixture from the catalyst. Each of the tank reactors is provided with an axial-flow stirring paddle having 2-6 blades per layer, to ensure sufficient mixing of the reactants with the catalyst. By using a distributed control pattern of reaction temperature and feedstock supplying to enhance the process and to optimize the operation, the reaction device of the present invention can effectively achieve large-scale continuous production of polyoxymethylene dimethyl ethers, and both the yield rates and the distribution of the reaction product are better than those of prior art.


Patent
China University of Petroleum - East China | Date: 2015-06-16

An automatic observation apparatus for detecting mineral samples comprises a base (1), a supporting arm (2), a sample fixing device (3), a stepper motor (4), a high-definition camera (5) and a control system (6). A refractometer is fixed on the base (1). A vertical through hole is formed at the top end of the supporting arm (2), and a lifting rod (211) penetrates through the vertical through hole and is matched with the vertical through hole in shape. A cavity is formed at the top end of the supporting arm (2), a gear (216) is mounted in the cavity, and the gear (216) is meshed with a rack (215) of the lifting rod (211). The sample fixing device (3) is a right-hexagonal-prism shell with the top end sealed, a spring (312) is arranged in a vertical hole of the sample fixing device, a sample locating head fixing device (314) is arranged at the lower end of the spring (312), a blind hole is formed in the lower end of the sample locating head fixing device (314), and a sample locating head (316) is matched with the blind hole in the lower end of the sample locating head fixing device (314). The apparatus can conveniently and efficiently fix samples, stray light interference is avoided, mineral samples can be rotated to be observed from different angles, and mineral sample detection accuracy is improved.


Patent
China University of Petroleum - East China | Date: 2015-12-07

The invention relates to a dynamic point-the-bit rotary steerable drilling tool and a measuring method thereof. The dynamic point-the-bit rotary steerable drilling tool comprises a rotary housing, a stabilized platform assembly, a hollow servo-motor assembly, a drilling fluid passage, an inner eccentric ring, an outer eccentric ring, a drilling bit shaft and a universal joint. The dynamic point-the-bit rotary steerable drilling tool also comprises a stabilized platform communication and power supply system which includes an instrument storehouse fixed at the upper end of the rotary housing, a main circuit board, an auxiliary circuit board mounted on the stabilized platform upper-end cover, an electromagnetic coupler primary-side, an electromagnetic coupler secondary winding and an electromagnetic coupler primary-side mounting plate fixed at the lower end of a coupler. The main circuit board is mounted on the electromagnetic coupler primary-side mounting plate, the electromagnetic coupler secondary winding is connected with the auxiliary circuit board, and the auxiliary circuit board is connected with the attitude sensor mounted on the side wall of the upper end of the stabilized platform body. By the dynamic point-the-bit rotary steerable drilling tool, hollow drilling fluid passage, power supply and signal transmission of the stabilized platform sensor, attitude angle parameter measurement and toolface angle real-time control of the rotary steerable drilling tool are realized.


Patent
China University of Petroleum - East China | Date: 2016-08-24

The invention belongs to the field of oilfield chemistry and specifically relates to a zirconium dispersed-particle gel combination flooding system. The zirconium dispersed-particle gel combination flooding system comprises multi-scale zirconium dispersed-particle gel, polyether nonionic surfactant, and mixing water; the mass fraction of multi-scale zirconium dispersed-particle gel is 0.16%-0.24% of the total mass of the combination flooding system; the mass fraction of polyether nonionic surfactant is 0.1%-0.4% of the total mass of the combination flooding system; the remainder is water, and the sum of the mass fractions of the components is 100%. The multi-scale zirconium dispersed-particle gel and polyether nonionic surfactant of the present invention have good synergies and oil/water interfacial tension is reduced to the order of 10-3 mN/m, significantly improving the oil-washing efficiency of the flooding agent, avoiding the adverse effects caused by polymer viscosity loss in two-component combination flooding or three-component combination flooding, avoiding the adverse effects caused by alkalis, and increasing the oil-displacement performance of the combination flooding system.

Loading China University of Petroleum - East China collaborators
Loading China University of Petroleum - East China collaborators