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公开(公告)号:US20230393300A1
公开(公告)日:2023-12-07
申请号:US18249155
申请日:2021-10-15
申请人: CHINA PETROLEUM & CHEMICAL CORPORATION , SINOPEC PETROLEUM ENGINEERING TECHNOLOGY SERVICE CO., LTD , SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD , SINOPEC MATRIX CORPORATION , GEOSTEERING & LOGGING RESEARCH INSTITUTE, SINOPEC MATRIX CORPORATION
发明人: Luyang DING , Ningning YANG , Haiquan TANG , Zhen YANG , Nan LIN , Mingquan HUANG , Qinglong LIU , Quanjin YANG , Xiaolin ZHANG , Zhiyong ZHANG , Chuntian HAN , Hai MA , Xiaohui CUI , Chao LU , Xin CHENG
摘要: A multi-sector data correction method for gamma imaging while drilling includes the steps of: (a) dividing each gamma imaging sector into a plurality of counting zones; (b) counting a number of valid counting pulses for each counting zone at a predetermined time interval during MWD; (c) constructing a plurality of measurement vectors based on a value of recording times of each counting zone; (d) establishing a correction matrix with a conditional number less than a set value through an optimization algorithm; and (e) calculating a gamma intensity of each measured sector with the plurality of measurement vectors and the correction matrix as constructed, so as to complete the correction on the measurement data of each measured sector for each predetermined time interval. This method eliminate problems such as rotational measurement distortion of the gamma imaging while drilling tool and improve the accuracy of calculating the formation dip angle.
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公开(公告)号:US20230211309A1
公开(公告)日:2023-07-06
申请号:US17996751
申请日:2021-04-20
发明人: Shuo SU , Xin CHENG , Bing XU , Qinghua DUAN , Jiayao YAO , Zuoxin HUANG , Xiaojin TANG , Tao HUANG , Ying HAN
CPC分类号: B01J19/0093 , C07C2/06 , C08F10/14 , B01J2219/00076 , B01J2219/00065 , B01J2219/00058
摘要: An apparatus for preparing polyalpha-olefins includes a mixing unit, a microchannel reaction unit, a high-pressure separation unit, a low-pressure separation unit, a gas circulation unit, a post-treatment unit and a pressure control unit, the mixing unit, the microchannel reaction unit, the high-pressure separation unit, the low-pressure separation unit that are successively connected. The gas circulation unit, the microchannel reaction unit is provided with the BF3 gas inlet, the mixing unit is provided with the auxiliary feed inlet, and the olefin raw material inlet, the gas circulation unit is connected with the BF3 gas inlet, the low-pressure separation unit is further connected with the post-treatment unit, and the high-pressure separation unit, the pressure control unit, and the gas circulation unit are further successively connected. The apparatus has the advantages of high polymerization reaction speed, high reaction conversion and good product selectivity, and is suitable for large-scale industrial production.
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公开(公告)号:US20230167204A1
公开(公告)日:2023-06-01
申请号:US17996762
申请日:2021-04-20
发明人: Xin CHENG , Shuo SU , Bing XU , Zuoxin HUANG , Xiaojin TANG , Tao HUANG , Ying HAN , Qinghua DUAN , Jiayao YAO
CPC分类号: C08F2/01 , B01J19/0053 , B01J19/0093 , C08F4/14 , C08F10/14
摘要: An apparatus for preparing polyalpha-olefins has an input unit (1), a microchannel reactor (2), and a post-treatment unit (3) that are successively connected. The input unit has a mixer and/or pipeline(s) for delivering an olefin raw material, an auxiliary feed and a BF3 catalyst to the microchannel reactor (2). The apparatus and process that utilizes the apparatus allow flexible and rapid mixing of the catalyst, the auxiliary feed and the olefin raw material, and have the advantages of high polymerization reaction speed, good mass and heat transfer effects, high reaction conversion, good product selectivity and excellent performance, thereby being suitable for large-scale industrial production.
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公开(公告)号:US20180362710A1
公开(公告)日:2018-12-20
申请号:US15780918
申请日:2016-11-28
发明人: Xin CHENG , Jianrong ZHANG , Zuoxin HUANG , Qinghua DUAN
IPC分类号: C08G65/331 , C10L10/18 , C10L1/2387 , C08G65/325 , C08G65/324
摘要: The present invention relates to an amino polymer, its main chain is attached via a —O— group to a structure represented by the following formula (I). The present invention also relates to a process for producing said amino polymer and to its use as fuel oil detergent. Compared with the prior art, the fuel oil detergent of the present invention has the advantages such as a lower manufacturing cost and an improved deposit formation inhibition performance. In formula (I), groups and values are defined as described in the description.
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