WASTE DISPOSAL IN HYDRAULICALLY FRACTURED EARTH FORMATIONS
    71.
    发明申请
    WASTE DISPOSAL IN HYDRAULICALLY FRACTURED EARTH FORMATIONS 审中-公开
    废水处理在液压破碎地面

    公开(公告)号:WO1994021393A1

    公开(公告)日:1994-09-29

    申请号:PCT/US1994002820

    申请日:1994-03-16

    CPC classification number: E21B41/0057 B09B1/008

    Abstract: Slurries of relatively fine particles of solids wastes and similar materials are disposed of through injection wells (24) which penetrate earth formation (13) disposal zones which have a minimum in situ compressive stress generally less than an overburden zone (14) and an underburden zone (18) adjacent to the disposal zone (16). The disposal zone preferably has a permeability greater than the overburden and underburden zones. The slurry is injected through a disposal well intersecting all of the zones and having perforations (44, 46, 48) preferably communicating the slurry with the underburden zone to provide for lateral growth of the hydraulically fractured disposal zone as the solids filter cake plates out on the fracture faces of the disposal zone without substantially penetrating the overburden zone.

    Abstract translation: 固体废物和类似材料的浆料通过穿透地层(13)处理区域的注入井(24)进行处置,处理区域具有通常小于上覆层区域(14)和下覆层区域(14)的最小原位压应力 (18)邻近处理区(16)。 处理区优选具有大于上覆岩层和下伏地带的渗透性。 浆料通过与所有区域交叉的处置井注入,并且具有穿孔(44,46,48),其优选地将浆料与底层区连通,以提供水硬性断裂处理区的横向生长,因为固体滤饼板在 处理区的断面不会大大穿透覆盖层。

    WASTE DISPOSAL IN HYDRAULICALLY FRACTURED EARTH FORMATIONS
    72.
    发明申请
    WASTE DISPOSAL IN HYDRAULICALLY FRACTURED EARTH FORMATIONS 审中-公开
    废水处理在液压破碎地面

    公开(公告)号:WO1994001232A1

    公开(公告)日:1994-01-20

    申请号:PCT/US1993006286

    申请日:1993-07-01

    CPC classification number: E21B43/267 B09B1/008 E21B41/0057

    Abstract: Slurried solid waste materials are injected into subterranean earth formations in a zone of interest (102) which has a relatively low in situ compressive stress (96) bounded by zones of higher in situ compressive stress (98, 100) and wherein the zone of interest has alternate layers of material of relatively high and low permeability to fluid flow, respectively. The solid waste slurry is conducted through an injection well (92) penetrating the zone of interest to form a conventional two-winged hydraulic fracture (132, 134). The fracture is extended by reducing the tendency to form filtercake in the fracture adjacent to the layers of material of relatively low permeability (142, 144) while depositing particle filtercake adjacent the earth layers of high permeability (146, 148, 150) so as to provide clear fluid flowpaths through the fracture while allowing the filtercake layers disposed in the fracture to assist in propping the fracture open.

    Abstract translation: 浆料固体废物被注入到感兴趣的区域(102)中的地下地层中,该区域具有较低原位压应力(96)的较低原位压应力区域(98,100),并且其中感兴趣的区域 分别具有相对较高和低渗透流体流动的材料的交替层。 固体废物浆料通过穿透感兴趣区域的注入井(92)进入,形成常规的双翼水力裂缝(132,134)。 通过减少在相邻低渗透性材料层(142,144)附近的裂缝中形成滤饼的趋势,同时沉积邻近高渗透率(146,148,150)的地层的颗粒滤饼,从而延伸断裂,以便 通过裂缝提供清晰的流体流动路径,同时允许设置在裂缝中的滤饼层有助于支撑断裂。

    CEMENT SLURRIES FOR DEVIATED WELLS
    73.
    发明申请
    CEMENT SLURRIES FOR DEVIATED WELLS 审中-公开
    水泥流水线

    公开(公告)号:WO1993009332A1

    公开(公告)日:1993-05-13

    申请号:PCT/US1992009437

    申请日:1992-11-04

    CPC classification number: C09K8/42 E21B33/14

    Abstract: A method of cementing a well penetrating a subterranean formation and having a deviated section (21) of more than 55 degrees angle of inclination in which a plurality of cement slurries (25, 35) are employed, at least one of which is less dense than the drilling fluid employed to drill the well, and allowing the cement to set up in the well and to bond in situ and provide zonal isolation and good bonding of equipment in the wellbore. The cement slurry may include micro-spheres of fly ash or borosilicate to reduce free water voids of channels in the cement.

    Abstract translation: 一种将穿透地层的井固井并具有倾斜角度大于55度的倾斜部分(21)的方法,其中使用多个水泥浆(25,35),其中至少一个密度小于 钻井液用于钻井,并允许水泥安装在井中并原位粘结,并提供井筒间隔离和良好的设备粘结。 水泥浆可以包括飞灰或硼硅酸盐的微球,以减少水泥中通道的自由水空隙。

    MULTIPHASE FLUID FLOW MEASUREMENT_______________________________
    74.
    发明申请
    MULTIPHASE FLUID FLOW MEASUREMENT_______________________________ 审中-公开
    多相流体流量测量

    公开(公告)号:WO1993008452A1

    公开(公告)日:1993-04-29

    申请号:PCT/US1992008566

    申请日:1992-10-08

    Abstract: Multiphase (gas and two liquid phases) fluid flowstreams are measured to determine the total flow rate, fluid density, the fraction of gas, and one liquid in the total liquid mixture by passing the flowstream through a volumetric or mass flow meter (16, 40), a densimeter (12) and a meter (14) which measures the fraction of one liquid in the two liquid mixture. The total fluid flow rate may be measured by a single tube flow meter (40) having adjacent loops which provide tube legs (49, 51) positioned adjacent each other and vibrated laterally at a predetermined frequency and amplitude while measuring pressures in the contraflowing streams in the adjacent tube legs. The density and gas fraction of the flowstream may be determined by vibrating a tube containing the flowstream over a range of frequencies and measuring the phase angle and amplitude of the fluctuating fluid pressures compared with acceleration of the tube to determine the sloshing natural frequency of the fluid mixture. The tube may be vibrated at a frequency far from the sloshing natural frequency of the fluid mixture to determine the fluid density.

    Abstract translation: 通过使流动流通过体积或质量流量计(16,40)来测量多相(气体和两个液相)流体流动流以确定总液体混合物中的总流速,流体密度,气体分数和一个液体 ),测量两种液体混合物中的一种液体的分数的密度计(12)和仪表(14)。 总流体流速可以通过具有相邻回路的单个管道流量计(40)来测量,该管道提供相邻定位并且以预定的频率和幅度横向振动的管腿(49,51),同时测量反向流中的压力 相邻的管腿。 流量的密度和气体分数可以通过在一定范围的频率上振动包含流动流的管来测定,并且与管的加速度相比较,测量波动的流体压力的相位角和振幅,以确定流体的晃荡固有频率 混合物。 管可以以远离流体混合物的晃动固有频率的频率振动以确定流体密度。

    SYSTEM FOR DETERMINING LIQUID VAPOR PRESSURE
    75.
    发明申请
    SYSTEM FOR DETERMINING LIQUID VAPOR PRESSURE 审中-公开
    用于确定液体蒸气压力的系统

    公开(公告)号:WO1992008121A1

    公开(公告)日:1992-05-14

    申请号:PCT/US1991007470

    申请日:1991-10-10

    CPC classification number: G01N25/00 G01N7/14

    Abstract: True vapor pressure of liquid compositions, particularly multi-component compositions, is measured by a piston and cylinder apparatus (14) defining an expansible chamber (84) in which a sample of liquid is trapped, the chamber (84) is expanded in multiple steps and multiple pressure and temperature measurements are taken at each expansion over a period of time. A resultant pressure at each expansion is determined from multiple measurements using the least squares method of approximation and the plural resultant pressure values are extrapolated to determine true vapor pressure using a straight-line approximation. The apparatus is adapted to continuously measure vapor pressure of a process stream by sampling a slipstream of liquid which is maintained at a constant temperature. The apparatus is mounted horizontally to minimize liquid depth and increase the rate of bubble formation during expansion of the chamber.

    CONTROL OF LOST CIRCULATION IN WELLS
    76.
    发明申请
    CONTROL OF LOST CIRCULATION IN WELLS 审中-公开
    控制井中的失水循环

    公开(公告)号:WO1992006273A1

    公开(公告)日:1992-04-16

    申请号:PCT/US1991007327

    申请日:1991-09-27

    CPC classification number: E21B21/003 C09K8/502 C09K8/508 F02B3/06

    Abstract: A method and a treating mixture for controlling lost circulation of fluid from a well bore to a formation wherein the treating mixture is flowed down the wellbore to block flow into the formation. The mixture is comprised of a non-aqueous carrier liquid (e.g. diesel and particles of compressed sponge) which expands upon contact with an aquous liquid in the formation. The mixture may also contain a second lost circulation material (e.g. unhydrolyzed polyacrylamide) which hydrates to bridge and plug any voids or spaces left between the expanded sponge particles. When used to control lost of an aqueous liquid, e.g. water-based mud, a non-aqueous liquid (e.g. diesel) is used ahead and behind the treating mixture to separate it from aqueous liquids. When used to control loss of an oil-based liquid, water is pumped behind the treating mixture to provide the aqueous liquid necessary for expanding the sponge particles once they are in place.

    PIEZOELECTRIC TRANSDUCER FOR HIGH SPEED DATA TRANSMISSION AND METHOD OF OPERATION
    77.
    发明申请
    PIEZOELECTRIC TRANSDUCER FOR HIGH SPEED DATA TRANSMISSION AND METHOD OF OPERATION 审中-公开
    用于高速数据传输的压电传感器和操作方法

    公开(公告)号:WO1992002054A1

    公开(公告)日:1992-02-06

    申请号:PCT/US1991004879

    申请日:1991-07-09

    CPC classification number: B06B1/0611 E21B47/124 E21B47/16 G01V1/46 H01L41/083

    Abstract: A transducer (40, 1400) and method for imparting vibrational signals to a structure (10) are disclosed. In one embodiment, a set of piezoelectric disks (53, 54) are constructed in conjunction with a deformable housing (43) to impart controlled distortions to the structure, such as to a well pipe string (10). Both longitudinal and torsional forces can be applied to the structure (10) depending upon the application. To improve transmission, the apparatus can be tuned to a frequency determined by a spectrum analysis of the pipe string (10). A reactance mass (44) may be connected to the transducer (40, 1400) to increase the amplitude of the imparted vibrations, and also to allow tuning of the frequency of vibrations of the transducer (40, 1400).

    TORSIONAL FORCE TRANSDUCER AND METHOD OF OPERATION
    78.
    发明申请
    TORSIONAL FORCE TRANSDUCER AND METHOD OF OPERATION 审中-公开
    扭转力传感器和操作方法

    公开(公告)号:WO1992001955A1

    公开(公告)日:1992-02-06

    申请号:PCT/US1991004878

    申请日:1991-07-09

    Abstract: A transducer and method for imparting vibrational signals to a structure are disclosed. In one embodiment, a set of piezoelectric elements (53, 54) are constructed in conjunction with a deformable housing (43) to impart controlled distortions to the structure, such as to a well pipe string (10). In another embodiment, torsional forces are applied to the structure (10) due to the orientation of the piezoelectric material (1601) relative to the electric field applied thereto. The piezoelectric material (1601) is placed in layers, with the polarization axis orthogonal to the direction of the electric field. Alternate layers are oriented in opposing directions, and alternating electrodes (1603, 1604) are connected together, so that each layer cooperates with the others to twist the shaft (1501) in the same direction. To improve transmission, the apparatus can be tuned to a frequency determined by a spectrum analysis of the pipe string (10). A reactance mass (44) may be connected to the transducer to increase the amplitude of the imparted vibrations, and also to allow tuning of the frequency of vibrations of the transducer (1401).

    Abstract translation: 公开了一种用于向振动信号施加振动信号的传感器和方法。 在一个实施例中,一组压电元件(53,54)与可变形壳体(43)结合构造以赋予结构受控制的变形,例如对于井管柱(10)。 在另一个实施例中,由于压电材料(1601)相对于施加到其上的电场的取向而将扭转力施加到结构(10)。 压电材料(1601)以偏振轴与电场方向正交的方式放置。 交替的层被定向在相反的方向上,并且交替电极(1603,1604)连接在一起,使得每个层与其他层协作以沿相同的方向扭转轴(1501)。 为了改善传输,可以将装置调谐到由管柱(10)的频谱分析确定的频率。 可以将电抗质量块(44)连接到换能器以增加施加的振动的振幅,并且还允许调谐换能器(1401)的振动频率。

    TUBING CONVEYED WELLBORE FLUID FLOW MEASUREMENT APPARATUS
    79.
    发明申请
    TUBING CONVEYED WELLBORE FLUID FLOW MEASUREMENT APPARATUS 审中-公开
    管道输送井筒流量测量装置

    公开(公告)号:WO1991007567A1

    公开(公告)日:1991-05-30

    申请号:PCT/US1990006698

    申请日:1990-11-15

    CPC classification number: E21B33/127 E21B17/06 E21B47/10

    Abstract: Wellbore fluid flow rates and other fluid properties may be measured by a tool (10) which is insertable in the well bore on the end of a tubing string (14) and includes an instrument section (116) and an inflatable packer (140) disposed on the tool for inflation by conducting pressure fluid down the tubing string to the packer. A control valve (58) disposed on the tool is hydraulically shiftable between first and second positions for conducting fluid from the tubing string (14) to the packer (140) and from the packer (140) the exterior of the tool. The valve (58) may be actuated by fluid conducted down the tubing string. The tool includes housing parts having respective cavities for conducting wellbore fluid through a flowmeter (124) and for containing instrument circuit enclosures disposed therein. Pressure fluid bypasses the cavities through elongated passages formed in the tool housing parts along or adjacent to the outer periphery of the housing parts. A frangible coupling (153) is interposed in the tool between the packer and the instrument section.

    TUBING CONVEYED WELLBORE FLUID FLOW MEASUREMENT SYSTEM
    80.
    发明申请
    TUBING CONVEYED WELLBORE FLUID FLOW MEASUREMENT SYSTEM 审中-公开
    管道输送井壁流体流量测量系统

    公开(公告)号:WO1990008878A1

    公开(公告)日:1990-08-09

    申请号:PCT/US1990000538

    申请日:1990-01-31

    CPC classification number: E21B47/10 E21B33/127

    Abstract: A fluid flow measuring or so-called production logging instrument (24) for fluids produced in a well includes an inflatable packer (38) for forming a seal (40) in the wellbore (10) to require diversion of wellbore fluid through a passage formed in the instrument whereby fluid flow rate and other fluid properties may be measured. The inflatable packer (38) receives pressure fluid from the tubing string (22) and may be remotely controlled to inflate and deflate, at will, through signals conducted from the surface to the instrument by way of a cable (30) extending through the tubing string. The instrument (24) includes a main wellbore fluid flow passage in which a shutoff valve (92) is disposed for controlling the flow of fluid through the passage and which may be automatically closed or opened in response to actuation of the packer seal (40).

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