公开(公告)号：US20150376984A1

公开(公告)日：2015-12-31

申请号：US14765191

申请日：2013-06-06

Applicant: PETROCHINA COMPANY LIMITED

Inventor： He LIU ,  Xiaohan PEI ,  Fuchao SUN ,  Lichen ZHENG ,  Qinghai YANG ,  Yang GAO

IPC: E21B34/12

CPC classification number: E21B34/12 ,  E21B34/14 ,  E21B43/20 ,  E21B2034/007

Abstract: The present invention provides a bridge concentric continuously adjustable water regulator, comprising: an outer tube; an adjusting sleeve disposed in the outer tube; a concentric valve connected below the adjusting sleeve, with a center of circle of the concentric valve being concentric to the outer tube; a water outlet which runs through a side wall of the outer tube and is connected to the concentric valve; a lower sealed section which is disposed in the outer tube and is below the concentric valve and the water outlet; and a bridge passage disposed in the side wall of the outer tube and outside the concentric valve and the lower sealed section. The present invention provides necessary conditions in order to satisfy single-layer testing of bridge concentric layered water injection, thereby realizing single-layer direct testing to improve the testing accuracy. By developing a bridge concentric continuously adjustable water regulator and its mated testing and adjusting instrument, it is possible to solve the problem of separate injection testing of a high-inclination well.

Abstract translation: 本发明提供一种桥式同心连续可调水调节器，包括：外管; 设置在外管中的调节套筒; 连接在调节套筒下方的同心阀，同心阀的圆心与外管同心; 出水口，其穿过外管的侧壁并连接到同心阀; 下密封部，其设置在所述外管中并且位于所述同心阀和所述出水口的下方; 以及桥接通道，其设置在外管的侧壁中并且位于同心阀和下密封部分的外侧。 本发明为满足桥式同心层状注水的单层试验提供了必要的条件，从而实现了单层直接试验，提高了测试精度。 通过开发桥式同心连续可调水调节器及其配套测试和调节仪器，可以解决高倾角井单独注射试验的问题。

公开(公告)号：US20200071185A1

公开(公告)日：2020-03-05

申请号：US16556211

申请日：2019-08-29

Applicant: PETROCHINA COMPANY LIMITED

Inventor： Jianming LI ,  Xu JIN ,  He LIU ,  Xiaodan LIU ,  Xiaoqi WANG ,  Liang SUN

IPC: C01G23/053 ,  C01G23/00 ,  B01J21/06 ,  B01J35/00 ,  H01M4/485

Abstract: A process for preparing a titanic acid salt, titanic acid, and titanium oxide having a controllable particle size and a hierarchical structure, wherein the process includes the steps of: preparing a titanium-containing peroxo-complex solution; adding a basic metal compound to the titanium-containing peroxo-complex solution to form a mixture solution; adding one of polyvinyl alcohol, hydroxypropyl methyl cellulose, and polyethylene glycol to the mixture solution to form a precursor dispersion; and subjecting the precursor dispersion to a solvothermal reaction to obtain the titanic acid salt having a hierarchical structure. The process for preparing a titanic acid salt, titanic acid, and titanium oxide having a controllable particle size and a hierarchical structure, can not only realize the regulation of morphology and particle diameter of constituent units in the hierarchical structure, but also can achieve the regulation of particle size in the hierarchical structure.

公开(公告)号：US20150369039A1

公开(公告)日：2015-12-24

申请号：US14765287

申请日：2013-06-06

Applicant: PETROCHINA COMPANY LIMITED

Inventor： He LIU ,  Xiaohan PEI ,  Fuchao SUN ,  Lichen ZHENG ,  Qinghai YANG ,  Yang GAO

IPC: E21B47/10

CPC classification number: E21B47/10 ,  E21B4/06 ,  E21B23/00 ,  E21B43/20

Abstract: A bridge concentric direct-reading testing and adjusting instrument, comprising: a cable head having a lower end connected to a pressure sensor via a circuit board; a supporting mechanism having a supporting arm fixing base and a pair of supporting arms connected to the supporting arm fixing base; an inclination well sliding power mechanism including a power motor, a spring, an impact hammer and a one-way clutch assembly, the spring positioned between the power motor and the impact hammer, the impact hammer slidably connected to the power motor and to be rotated along with rotation of the power motor, a lower end of the impact hammer detachably connected to the one-way clutch assembly, and the one-way clutch assembly connecting the supporting arms via a transmission assembly to control opening and closing of the supporting arms; a flowmeter connected below the supporting mechanism; and an adjusting actuator connected below the flowmeter and including an adjusting motor, an adjusting connector and an adjusting arm, the adjusting motor connected to the adjusting arm via the adjusting connector, and the adjusting arm used for adjusting a waterflooding flow rate through rotation of the adjusting arm

Abstract translation: 一种桥式同心直读式测试和调节仪器，包括：电缆头，其下端通过电路板连接到压力传感器; 支撑机构，其具有支撑臂固定底座和连接到支撑臂固定基座的一对支撑臂; 包括动力马达，弹簧，冲击锤和单向离合器组件的倾斜井滑动动力机构，弹簧定位在动力马达和冲击锤之间，冲击锤可滑动地连接到动力马达并旋转 与动力马达的旋转一起，可拆卸地连接到单向离合器组件的冲击锤的下端，以及经由传动组件连接支撑臂的单向离合器组件，以控制支撑臂的打开和关闭; 连接在支撑机构下方的流量计; 以及调节致动器，其连接在所述流量计下方并且包括调节电动机，调节连接器和调节臂，所述调节电动机经由所述调节连接器连接到所述调节臂，所述调节臂用于通过所述调节连接器的旋转来调节注水流量 调整臂

公开(公告)号：US20200071184A1

公开(公告)日：2020-03-05

申请号：US16556224

申请日：2019-08-29

Applicant: PETROCHINA COMPANY LIMITED

Inventor： Xu JIN ,  Jianming LI ,  He LIU ,  Hang JIAO ,  Xiaoqi WANG ,  Liang SUN ,  Xiaodan LIU

IPC: C01G23/00 ,  C01D15/00

Abstract: A preparation method of a nanotube hierarchically structured lithium titanate includes the steps of: S1. dispersing a titanium source into an aqueous solution containing lithium hydroxide and hydrogen peroxide and stirring to obtain a mixed solution; S2. subjecting the mixed solution obtained in step S1 to a reaction by heating to obtain a precursor having a nanowire-like structure; S3. subjecting the precursor having a nanowire-like structure obtained in step S2 to separation and drying; S4. subjecting the precursor having a nanowire-like structure after separation and drying to a low-temperature annealing treatment; S5. subjecting the precursor having a nanowire-like structure after the low-temperature annealing treatment to a liquid thermal reaction to obtain the nanotube hierarchically structured lithium titanate. The method includes a simple process and easily controllable process parameters, and may be easily scaled-up for industrial production.