AUTO RESTART BRAKE FOR HYDRAULIC FRACTURING PUMPING SYSTEM

    公开(公告)号:WO2023081922A1

    公开(公告)日:2023-05-11

    申请号:PCT/US2022/079478

    申请日:2022-11-08

    发明人: BLOSCHIES, Lothar

    IPC分类号: E21B43/26 F02C7/052 F02C7/36

    摘要: A system and method for controlling a hydraulic fracturing pumping system is described herein. The method can include stopping an engine coupled to a hydraulic fracturing pumping system including at least one pump by supplying pressure from an accumulator to a hydraulic braking system including a brake. The method can also include starting the engine coupled to the hydraulic fracturing pumping system and releasing the brake.

    中低熟富有机质页岩自生热原位转化开发方法

    公开(公告)号:WO2023078085A1

    公开(公告)日:2023-05-11

    申请号:PCT/CN2022/126034

    申请日:2022-10-19

    申请人: 吉林大学

    摘要: 一种中低熟富有机质页岩自生热原位转化开发方法,属于中低熟富有机质页岩原位开采领域,该方法主要通过对储层改造良好的页岩地层注入井(2)附近进行局部预热,并向预热地层中注入常温空气,激发并建立起由残渣区(3)、自生热区(4)、热裂解区(5)和预热区(6)组成的化学反应区,利用干酪根热裂解后产生的残留物发生氧化反应释放热量,实现对流加热页岩地层,干酪根热裂解产生的油气产物通过裂缝进入生产井(1),并被举升至地面。由于该油页岩原位转化技术仅需对注入井(2)附近局部预热,无需外部热量或可燃物注入,其开发成本较低。

    柱塞泵系统及其压力脉动补偿方法、压裂设备

    公开(公告)号:WO2023070742A1

    公开(公告)日:2023-05-04

    申请号:PCT/CN2021/129434

    申请日:2021-11-09

    摘要: 一种柱塞泵系统及其压力脉动补偿方法、压裂设备。柱塞泵系统包括第一柱塞泵(100)和流体压力补偿结构(200)。流体压力补偿结构(200)被配置为对第一柱塞泵(100)的输出端(101)输出的流体的压力脉动进行补偿。流体压力补偿结构(200)包括至少一个直线电机(210)和由至少一个直线电机(210)驱动的第二柱塞泵(220),第二柱塞泵(220)的输出端(221)与第一柱塞泵(100)的输出端(101)连通。本公开实施例提供的柱塞泵系统中增加了具有直线电机和第二柱塞泵的流体压力补偿结构,直线电机的体积小,便于与第二柱塞泵集成以实现紧凑设计,且直线电机便于调节和控制以实现对第一柱塞泵输出的流体的压力脉动进行补偿。

    METHOD FOR PROCESSING SAMPLED PROPPANT DURING HYDRAULIC FRACTURING

    公开(公告)号:WO2023069579A1

    公开(公告)日:2023-04-27

    申请号:PCT/US2022/047216

    申请日:2022-10-20

    申请人: GTI ENERGY

    摘要: A method for processing proppant from a well. A plurality of proppant samples are collected during drilling of a well for imaging analysis. In addition to imaging analysis a further correction factor is determined for the samples using additional analysis on a portion of the samples. Determining and applying the correction factor to the imaging results provides a more accurate proppant log. The additional analysis can be by scanning electron microscopy, such as for differentiating the silicon proppant particles from other elemental particles resulting from the drilling.

    DETERMINING CHARACTERISTICS OF FLUID LOSS IN A WELLBORE

    公开(公告)号:WO2023059345A1

    公开(公告)日:2023-04-13

    申请号:PCT/US2021/057085

    申请日:2021-10-28

    摘要: A system can provide for determining characteristics loss in a wellbore. The system can include a processor and a non-transitory memory with instructions that are executable by the processor for causing the processor to execute operations. The operations can include receiving, from sensors in a wellbore, data corresponding to loss indicators. The operations can include determining a loss probability for each loss indicator. The operations can include determining a total loss probability of fluid loss in the wellbore based on the loss probabilities. The operations can include outputting the total loss probability to be used in a drilling operation in the wellbore.

    压裂设备及其减振方法
    6.
    发明申请

    公开(公告)号:WO2023015687A1

    公开(公告)日:2023-02-16

    申请号:PCT/CN2021/120712

    申请日:2021-09-26

    摘要: 一种压裂设备及其减振方法。该压裂设备(300)包括至少一个压裂单元(100)和处理装置(200),压裂单元(100)包括:柱塞泵(110);低压进液管汇(120),与柱塞泵(110)相连并被配置为向柱塞泵(110)提供低压流体;高压排出管汇(130),与柱塞泵(110)相连,柱塞泵(110)被配置为对低压流体加压并从高压排出管汇排出;压力检测装置(140),被配置为检测低压进液管汇(120)中的低压流体的压力值;以及振动检测装置(150),被配置为检测柱塞泵(110)的振动烈度,处理装置(200)与柱塞泵(110)、压力检测装置(140)和振动检测装置(150)分别通信相连,并被配置为根据振动检测装置(150)检测到的振动烈度和压力检测装置(140)检测到的压力值对柱塞泵(110)进行控制。该压裂设备可提高柱塞泵的排量稳定性和使用寿命。