Huawei Technologies Co., Limited

Chengdu University of Technology

Advanced New Technologies Co., Ltd.

Southwest Petroleum University

Bo Yang

Hua Cai

Hao Kai Zhang

Yang Yang

Bin Yang

Guolong Huang

Chi Chen

Jianchun Guo

Hui Wu

Ji Xu

Min Ren

Bo Gou

Bing Wu

Jiping She

Min Zhang

Jichuan Ren

Yu Liu

Xiao Li

Ying Zhong

Jie Lai

Wenjing Ma

Zhihui Li

Qingqing Yu

Minzhen Guo

Yufan Guo

Yin Zhong

Yue Li

Di Yang

The invention provides a suspension modifier directly added into fracturing fluid for real-time proppant modification during fracturing and the application thereof, relating to the field of oil and gas production technologies. The suspension modifier is a controlled release nanoemulsion and comprises surface hydrophobic modifier, surfactant, cosurfactant and water. The suspension modifier is directly added into clear-water or active-water fracturing fluid while the proppant is added into water. After stirring, the suspension modifier is capable of self-assembling and being adsorbed on the proppant surface, so that the proppant surface becomes hydrophobic and aerophilic. The invention no longer requires the proppant to be pretreated, and the bubble-suspended proppant can be obtained directly by adding the suspension modifier to the clear-water or active-water fracturing fluid, and meanwhile adding the proppant to the fracturing fluid. This technology is not only easy to operate, but also low in cost for proppant treatment.

Suspension modifier directly added into fracturing fluid for real-time proppant modification during fracturing and the application thereof

The present invention discloses a method for proppant suspension and suspension parameter optimization based on bubble bridge effect, comprising: select a proppant and hydrophobically modify its surface to obtain a hydrophobically surface-modified proppant; prepare a bubbly fracturing base fluid; make the first optimization of the base fluids according to the average radius of the proppant and the average radius of the bubbles of the base fluids; optimally select the base fluids selected for the second time according to the interaction energy between the proppant particle and the bubble after the hydrophobically surface-modified proppant mixed with the base fluid; the basic parameters of the bubbly fracturing base fluid selected at the third time were used for the perfect selection for proppant suspension. The present invention establishes a procedure on experimental evaluation and parameter calculation optimization by suspending fracturing proppant with the bubble bridge effect on the hydrophobic surface.

Method for proppant suspension and suspension parameter optimization based on bubble bridge effect

The present invention discloses a method for experimentally determining the conductivity distribution of an acid-fractured fracture a carbonate rock oil and gas reservoir, including the following steps: by an acid fracturing simulator FracproPT, simulating and acquiring distribution data of fracture width, fracture height, temperature and acid liquor mass concentration in a hydraulic fracture length direction; selecting fracture width, fracture height and temperature data of total 10 feature points with the acid liquor mass concentrations being from 100% to 10% of the initial mass concentration; converting site acid injection displacement into laboratory acid injection displacement; preparing experimental acid liquor according to the acid liquor mass concentration data of the 10 feature points; and simulating the acid etching process, and experimentally testing the conductivity under the condition of reservoir closed pressure, and drawing a distribution diagram of the acid-etched fracture conductivity in the fracture length direction under the reservoir condition.

Method for experimentally determining conductivity distribution of acid-fractured fracture of carbonate rock oil and gas reservoir

Embodiments of the present application relate to a method, apparatus, and system for operating an electronic account or displaying a payment page. The method includes receiving, from a first client terminal, a payment platform display page acquisition request, providing, to the first client terminal, a payment platform display page, wherein the payment platform display page includes a first script code, wherein in the event that the first script code is executed, the first script code causes the first client terminal to obtain a payment page including a digital object unique identifier from a payment server and to display the payment page, wherein the digital object unique identifier indicates an upcoming payment sum, receiving verification information, and sending the verification information to the payment server to instruct the payment server to execute a deduction operation on an electronic account.

Method, apparatus, and system for operating an electronic account in connection with an electronic transaction

A transceiver includes: a baseband control apparatus (); an up-conversion apparatus (), connected to the baseband control apparatus (), and configured to perform up-conversion on a baseband signal generated by the baseband control apparatus (), to obtain an intermediate frequency signal; at least two radio frequency channels () disposed in parallel, connected to the up-conversion apparatus (), and configured to perform frequency conversion, amplification, and filtering on the intermediate frequency signal, to obtain a radio frequency signal corresponding to the frequency band covered by the each radio frequency channel; and an antenna (), connected in series with an output end of any radio frequency channel of the at least two radio frequency channels (), and configured to transmit the radio frequency signal obtained by the radio frequency channel. The transceiver enables relatively high wireless communication performance when an ultra wide bandwidth is implemented.

Transceiver

Embodiments of the present disclosure provide a base station and a beam coverage method, which can improve a service capacity of a communications system. The base station includes: an antenna and at least two data transmission paths, where a data converter and a beamformer are disposed on each data transmission path; the antenna includes a beam aggregation structure and at least one antenna bay, the beam aggregation structure includes at least one antenna aperture, one beamformer is correspondingly connected to one antenna bay, one antenna bay uses at least one antenna aperture in the beam aggregation structure to receive and send a beam, and a multiplexer is further disposed on the at least two data transmission paths; and the multiplexer is configured to set a data transmission path of a to-be-transmitted signal or a radiation signal. The embodiments of the present disclosure are used for beam coverage.

Base station and beam coverage method

A planar-transmission-line-to-waveguide adapter is provided, to reduce limitations on bandwidth expansion. The planar-transmission-line-to-waveguide adapter includes a planar transmission line structure includes at least a planar transmission line, a dielectric substrate, and a metal ground having a coupling gap. a gradient waveguide structure includes m dielectric waveguides with gradient sizes, and any dielectric waveguide is surrounded by metal via holes in a dielectric substrate, where m is a positive integer not less than 2. a1dielectric waveguide in the m dielectric waveguides with gradient sizes is coupled with the coupling gap in the planar transmission line structure. Adjacent dielectric waveguides are connected by using a metal ground, and a radiation patch is disposed between the adjacent dielectric waveguides. A metal ground and a radiation patch are disposed on a surface on which an mdielectric waveguide comes into contact with a standard waveguide.

Planar-transmission-line-to-waveguide adapter

Growing community of inventors

Chengdu, China

Bo Yang