公开(公告)号：US20140262246A1

公开(公告)日：2014-09-18

申请号：US14351573

申请日：2011-11-04

Applicant: Zhilin Li ,  Bin Dong ,  Haifang Sun ,  Liexiang Han ,  Runde Xiao ,  Bo Yang ,  Gui Tang ,  Qiulai Xue ,  Qiang Wei ,  Guojun Tang ,  Xing Zuo

Inventor： Zhilin Li ,  Bin Dong ,  Haifang Sun ,  Liexiang Han ,  Runde Xiao ,  Bo Yang ,  Gui Tang ,  Qiulai Xue ,  Qiang Wei ,  Guojun Tang ,  Xing Zuo

IPC: E21B41/00 ,  E21B47/10

CPC classification number: E21B49/00 ,  E21B21/08 ,  E21B41/0092 ,  E21B47/1025

Abstract: A method for controlling well bore pressure based on model prediction control theory and systems theory, which belongs to the field of well bore pressure control technique, includes: detecting a well bottom pressure, a stand pipe pressure, a casing pressure, an injection flow rate and an outlet flow rate during construction process, and determining the presence of overflow or leakage; if there is no overflow or leakage, then fine-adjusting the wellhead casing pressure according to the slight fluctuations of the well bottom pressure, the stand pipe pressure or the casing pressure, ensuring that the well bottom pressure, the stand pipe pressure or the casing pressure are at a set value; if there is overflow or leakage, then using a well bore multi-phase flow dynamic model to simulate and calculate the overflow or leakage position and starting time of the overflow or leakage, predicting the variation over a future time period of the well bore pressure in the well drilling process, and utilizing an optimization algorithm to calculate the control parameter under a minimum of an actual well bottom pressure difference during the future period; and repeating the optimization process for the next time period after a first control parameter is selected and set. The present method enables the well bore pressure to be controlled within the allowable fluctuation range of a project, thus achieving precise pressure control.

Abstract translation: 基于井眼压力控制技术领域的模型预测控制理论和系统理论，控制井筒压力的方法包括：检测井底压力，立管压力，套管压力，喷射流量 和施工过程中的出口流量，并确定溢出或泄漏的存在; 如果没有溢出或泄漏，则根据井底压力，立管压力或套管压力的轻微波动来微调井口套管压力，确保井底压力，立管压力或套管 压力处于设定值; 如果有溢流或泄漏，则使用井筒多相流动力学模型来模拟和计算溢流或泄漏位置以及溢流或泄漏的开始时间，预测未来时间段内井筒压力的变化 钻井过程，并利用优化算法在未来期间在最小实际井底压力差下计算控制参数; 并且在选择和设置第一控制参数之后，重复下一时间段的优化处理。 本方法能够将井筒压力控制在工程的容许波动范围内，从而实现精确的压力控制。

公开(公告)号：US09638031B2

公开(公告)日：2017-05-02

申请号：US14351573

申请日：2011-11-04

Applicant: Zhilin Li ,  Bin Dong ,  Haifang Sun ,  Liexiang Han ,  Runde Xiao ,  Bo Yang ,  Gui Tang ,  Qiulai Xue ,  Qiang Wei ,  Guojun Tang ,  Xing Zuo

Inventor： Zhilin Li ,  Bin Dong ,  Haifang Sun ,  Liexiang Han ,  Runde Xiao ,  Bo Yang ,  Gui Tang ,  Qiulai Xue ,  Qiang Wei ,  Guojun Tang ,  Xing Zuo

IPC: G05D16/00 ,  E21B49/00 ,  E21B47/10 ,  E21B41/00 ,  E21B21/08

CPC classification number: E21B49/00 ,  E21B21/08 ,  E21B41/0092 ,  E21B47/1025

Abstract: A method for controlling well bore pressure based on model prediction control theory and systems theory, includes: detecting a well bottom pressure, a stand pipe pressure, a casing pressure, an injection flow rate and an outlet flow rate during the drilling operation process and determining the presence of overflow or leakage; if there is no overflow or leakage, then fine-adjusting the wellhead casing pressure according to the slight fluctuations of the well bottom pressure, the stand pipe pressure or the casing pressure; if there is overflow or leakage, simulating and calculating the overflow or leakage position and starting time of the overflow or leakage, predicting the variation over a future time period of the well bore pressure in the well drilling process, and utilizing an optimization algorithm to calculate the control parameter under a minimum of an actual well bottom pressure difference during the future period.

公开(公告)号：US20170078981A1

公开(公告)日：2017-03-16

申请号：US15122557

申请日：2015-03-05

Applicant: Hui TIAN ,  Qimei CUI ,  Meng WANG ,  Zhilin LI ,  Yang LIU

Inventor： Hui TIAN ,  Qimei CUI ,  Meng WANG ,  Zhilin LI ,  Yang LIU

IPC: H04W52/26 ,  H04W72/04 ,  H04W52/24

CPC classification number: H04W52/265 ,  H04W52/24 ,  H04W52/241 ,  H04W52/244 ,  H04W72/044

Abstract: A wireless communication device, a wireless communication method and a wireless communication system. The wireless communication device includes: a classification unit, used for, based on the channel qualities of downlinks of a target cell and other cells in a cell cluster on a specific resource block, classifying the overall condition of the channel quality; and a control unit, used for controlling, so as to determine the target transmitting power of the target cell on the specific resource block by using a power distribution method adapting to the classification. According to the scheme, the system throughput of a wireless network on the specific resource block under dense cell distribution can be maximized.

Abstract translation: 无线通信设备，无线通信方法和无线通信系统。 无线通信装置包括：分类单元，用于基于目标小区的下行链路的信道质量和特定资源块上的小区簇中的其他小区的信道质量，对信道质量的整体状况进行分类; 以及控制单元，用于通过使用适应于分类的功率分配方法来控制特定资源块上的目标小区的目标发送功率。 根据该方案，可以最大化在密集小区分布下的特定资源块上的无线网络的系统吞吐量。

公开(公告)号：US20160095007A1

公开(公告)日：2016-03-31

申请号：US14890285

申请日：2014-06-06

Applicant: Hui TIAN ,  Qimei CUI ,  Zhilin LI ,  Baoang JIANG ,  Liqi GAO ,  Meng WANG

Inventor： Hui TIAN ,  Qimei CUI ,  Zhilin LI ,  Baoang JIANG ,  Liqi GAO ,  Meng WANG

IPC: H04W24/08 ,  H04W72/08

CPC classification number: H04W24/08 ,  H04L5/001 ,  H04L5/006 ,  H04L5/0073 ,  H04L5/0092 ,  H04L5/14 ,  H04W24/02 ,  H04W72/0453 ,  H04W72/082

Abstract: A carrier coordination device and system, a communications device and method, and a measurement device and method. The carrier coordination device includes: a receiving unit, used to receive interference information for describing interference suffered by a user equipment; and a coordination unit, used to determine an interfering source base station of the user equipment according to the interference information, and coordinate carrier use of the user equipment and/or the interfering source base station at least based on the interference information and carrier state information of the interfering source base station, to reduce the interference suffered by the user equipment. The technology can be applied in a wireless communications field.

Abstract translation: 载体协调装置和系统，通信装置和方法以及测量装置和方法。 载波协调装置包括：接收单元，用于接收用于描述用户设备遭受的干扰的干扰信息; 以及协调单元，用于根据干扰信息确定用户设备的干扰源基站，以及至少基于干扰信息和载波状态信息来协调用户设备和/或干扰源基站的载波使用 的干扰源基站，以减少用户设备遭受的干扰。 该技术可以应用于无线通信领域。