公开(公告)号：US3435333A

公开(公告)日：1969-03-25

申请号：US3435333D

申请日：1965-08-04

申请人： SPECTROSPIN AG

发明人： WEGMANN LIENHARD ,  GALLO MARIO

IPC分类号： G01R33/24 ,  G01R33/38 ,  G01R33/389 ,  G01R33/46 ,  G01N27/78

CPC分类号： G01R33/381 ,  G01R33/24 ,  G01R33/389 ,  G01R33/46

公开(公告)号：US4022276A

公开(公告)日：1977-05-10

申请号：US657784

申请日：1976-02-13

申请人： Karl D. Dreher ,  Robert D. Sydansk

发明人： Karl D. Dreher ,  Robert D. Sydansk

IPC分类号： E21B43/22 ,  E21B43/16 ,  E21B49/00 ,  G01N24/00 ,  E21B47/00 ,  G01N27/78 ,  G01R33/08

CPC分类号： E21B49/00 ,  E21B43/16

摘要： Fluids are injected into porous strata for many purposes. These include, for example, well stimulation, secondary-type oil recovery, mobility control, regulation of formation "wetness" and regulation of the encroachment of fluids. Fluids used for the above purposes are readily selected using nuclear magnetic resonance (NMR) measurements in the laboratory to measure the interaction between the fluids being injected into the reservoir rock and the in situ fluids or between injected fluids and the porous material. NMR measurements are taken for each component of sample fluids proposed to be injected in the reservoir for a desired purpose, or the sample fluid per se and each of the in situ fluids. NMR measurements are then taken of the interaction between the nuclei of sample fluids injected, the reservoir rock, and the nuclei of fluids in situ.If the injected fluid is to be used for some purposes, for example, well stimulation or secondary-type oil recovery, the fluids are selected which interact least with the rock and with in situ fluids. If the wetness of the reservoir is to be changed, then the fluid is selected which interacts well with the reservoir rock. If a material is to be precipitated or formed in situ, the fluid is selected which interacts well with either the reservoir rock or the formation fluids. Additionally, the best combination of components for a particular fluid to be injected can also be determined using NMR, preferably pulsed, detection devices.

摘要翻译： 为了许多目的，将流体注入多孔层中。 这些包括例如井刺激，二次油回收，流动控制，形成调节“湿度”以及流体侵蚀的调节。 用于上述目的的流体可以在实验室中使用核磁共振（NMR）测量来容易地选择，以测量被注入到储层岩石中的流体与原位流体之间或注射流体与多孔材料之间的相互作用。 对于建议在储存器中注入所需目的的样品流体的每个组分，或样品流体本身和每个原位流体，都需要进行NMR测量。 然后采用核磁共振测量，注入样品流体的核，储层岩石和原位原子核之间的相互作用。

公开(公告)号：US3950135A

公开(公告)日：1976-04-13

申请号：US491594

申请日：1974-07-24

申请人： George M. Whitesides ,  Michael McCreary ,  Daniel Lewis

发明人： George M. Whitesides ,  Michael McCreary ,  Daniel Lewis

IPC分类号： C07C45/45 ,  C07C45/77 ,  C07C49/297 ,  C07C49/313 ,  C07C49/92 ,  C07F5/00 ,  C01F17/00 ,  G01N27/78

CPC分类号： C07F5/003 ,  C07C45/455 ,  C07C49/297 ,  C07C49/313 ,  C07C49/92 ,  Y10T436/24

摘要： The ability of nuclear magnetic resonance spectroscopy to distinguish between compounds and between parts of compounds is substantially increased by the use of certain rare earth chelate shift reagents. The preferred shift reagents are the europium III chelates of substituted or unsubstituted dicampholyl ligands, and europium III chelates of substituted or unsubstituted nopinato compounds. The reagents are particularly useful in determining the enantiomeric purity of compositions containing mixtures of enantiomers.

公开(公告)号：US3821636A

公开(公告)日：1974-06-28

申请号：US23622472

申请日：1972-03-20

申请人： WESTINGHOUSE ELECTRIC CORP

发明人： BOZANIC D ,  MERGERIAN D ,  MINARIK R

IPC分类号： G01R33/60 ,  G01N27/78

CPC分类号： G01R33/60

摘要： A system for the generation of a plurality of equally spaced repetitive spin-echo signals from an RF ''''input'''' pulse and an RF ''''recall'''' pulse utilizing a sample of titanium dioxide (rutile) preferably having an irregular shape and being doped with iron group transition group ions to produce paramagnetic defect centers in the order of 1 X 1016 defect centers/cm3.

公开(公告)号：US3820010A

公开(公告)日：1974-06-25

申请号：US12328671

申请日：1971-03-11

申请人： SUDMEIER G

发明人： SUDMEIER G

IPC分类号： G01V3/14 ,  G01V3/15 ,  G01N27/78

CPC分类号： G01V3/14 ,  G01V3/15

摘要： A system for providing data on the content of subsurface formations on the basis of the magnetic resonance of certain atomic structures of interest. The system incorporates a mobile unit for moving a source of directional electromagnetic radiation along the earth''s surface, directing the radiation substantially vertically into the earth. A probe senses the energy content of the radiated energy pattern (including reflections) to detect distance-related changes which are indicative of groups of atom portions of interest. The sensed radiation is plotted along with a gamma radiation plot for an interpretation indicative of the subsurface formation content.

公开(公告)号：US3810254A

公开(公告)日：1974-05-07

申请号：US26973872

申请日：1972-07-07

申请人： HITACHI LTD

发明人： UTSUMI Y ,  TERUI H

IPC分类号： G01R33/31 ,  G01R33/383 ,  G01N27/78

CPC分类号： G01R33/383 ,  G01R33/31

摘要： A thermostatic system for nuclear gyromagnetic resonance spectroscopic permanent magnet apparatus comprising a thermostatic oven structure consisting of a first and second thermostatic ovens enclosing a permanent magnet is disclosed. The temperature of the first thermostatic oven is controlled and maintained at a predetermined temperature higher than ambient temperature. The second thermostatic oven is disposed between the permanent magnet and the first thermostatic oven, and its temperature is controlled and maintained at a predetermined temperature higher than the temperature of the first thermostatic oven. In this manner, the permanent magnet is held at a temperature substantially equal to the temperature of the second thermostatic oven.

摘要翻译： 公开了一种用于核回旋磁共振光谱永磁体装置的恒温系统，其包括由围绕永磁体的第一和第二恒温炉组成的恒温炉结构。 第一恒温炉的温度被控制并保持在比环境温度高的预定温度。 第二恒温炉设置在永久磁铁和第一恒温炉之间，其温度被控制并保持在比第一恒温箱的温度高的预定温度。 以这种方式，永磁体被保持在基本上等于第二恒温炉温度的温度。

公开(公告)号：US3786341A

公开(公告)日：1974-01-15

申请号：US3786341D

申请日：1972-10-26

申请人： VARIAN ASSOCIATES

发明人： ANDERSON W ,  ERNST R

IPC分类号： G01R33/62 ,  G01R33/46 ,  G01N27/78

CPC分类号： G01R33/4616

摘要： A magnetic resonance spectrometer employing a pseudorandom binary sequence to simultaneously excite magnetic resonance of a plurality of resonance lines in the spectrum of a sample under analysis, the driving radio frequency field being applied to the sample in a train of pulses in each binary sequence, the timing or phase of the pulses being changed in a stochastic manner in the sequence, the composite noise excited resonance signal being detected in a receiver and sampled in a multitude of time displaced intervals in correlation with the binary sequence and stored in an accumulative manner in the associated channels of a memory of subsequent processing, read-out and display, the receiver being activated during the time intervals between the application of the radio frequency pulses to the sample.

摘要翻译： 一种使用伪随机二进制序列同时激发在分析样品的频谱中的多个谐振线的磁共振的磁共振光谱仪，所述驱动射频场以每个二进制序列以脉冲序列施加到样本， 在序列中以随机方式改变脉冲的定时或相位，在接收机中检测复合噪声激励谐振信号，并以与二进制序列相关的多个时间偏移间隔进行采样，并以累积方式存储在 后续处理，读出和显示的存储器的相关通道，接收机在将射频脉冲施加到样本之间的时间间隔期间被激活。

公开(公告)号：US3775671A

公开(公告)日：1973-11-27

申请号：US3775671D

申请日：1972-07-03

申请人： CHEVRON RES

发明人： BROWN R

IPC分类号： G01V3/32 ,  G01N27/78

CPC分类号： G01V3/32

摘要： A method and apparatus provided for reducing the effect of magnetic materials, such as magnetite, in an earth formation on the electrical A.C. signal induced by protons of earth formation fluids precessing under the influence of the earth''s magnetic field after the establishment and interruption of a polarizing field,d in an earth formation traversed by a wellbore. In accordance with the present invention, before the polarizing field, say of magnitude Hp gauss, is established within the earth formation (by passing a direc

摘要翻译： 一种方法和装置，用于减少地球形成中的磁性材料如磁铁矿对建立和中断极化之后受地球磁场影响的地层流体质子诱发的电气交流信号的影响 在井眼穿过的地层中的d。 根据本发明，在极地电场的方向（通过使直流通过正常的第一方向的励磁线圈）之前建立极化场（例如大小Hp高斯）之前， 反转预定的时间间隔。 仅使用电流（不是振荡）的单次反转 - 对地球中的足够的磁性粒子去磁，这可能导致质子进动场中的不均匀性，从而显着改善随后检测的AC信号的响应特性，例如，通过 百分之二十，而不会阻碍记录过程的重要数字控制方面。 相反的幅度

公开(公告)号：US3771055A

公开(公告)日：1973-11-06

申请号：US3771055D

申请日：1972-03-17

申请人： VARIAN ASSOCIATES

发明人： ANDERSON W

IPC分类号： G01R33/36 ,  G01N27/78

CPC分类号： G01R33/3635

摘要： Double nuclear magnetic resonance coil structure and a spectrometer using same are disclosed. The coil structure comprises three radio frequency coils disposed with their respective magnetic axis in substantially orthoganal relation to each of the other two coils, whereby the coils are magnetically decoupled from each other while being radio frequency magnetic coupled to a nuclear sample disposed within the surrounding coils.

摘要翻译： 公开了双核磁共振线圈结构和使用它的光谱仪。 线圈结构包括三个射频线圈，它们各自的磁轴与其他两个线圈中的每个线圈基本上成正交关系，由此线圈彼此磁耦合，同时被射频磁耦合到设置在周围线圈内的核试样 。

公开(公告)号：US3757204A

公开(公告)日：1973-09-04

申请号：US3757204D

申请日：1972-02-28

申请人： VARIAN ASSOCIATES

发明人： HYDE J

IPC分类号： G01R33/345 ,  G01N27/78

CPC分类号： G01R33/345

摘要： In an electron paramagnetic resonance cavity resonator having a line sample therein, a dielectric material positioned near the sample and along at least a portion of its length, and extending into the RF electric field region near the sample, changes the gradient of the electric field intensity and, as a result, the RF magnetic field intensity along the line sample so as to make both the RF electric and magnetic field intensities more uniform along