专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明授权

US4857729A Method of radioactive well logging 失效
标题翻译：放射性测井方法
公开(公告)号：US4857729A
公开(公告)日：1989-08-15
申请号：US184742
申请日：1988-04-22
申请人： Larry L. Gadeken , Harry D. Smith, Jr.
发明人： Larry L. Gadeken , Harry D. Smith, Jr.
IPC分类号： E21B47/10
CPC分类号： E21B47/1015
摘要： A method of radioactive well logging for use in well operations wherein hydraulic fracturing material, including radioactive isotopes, is injected from a steel-cased well bore 31 into surrounding earth formations 33. Low energy gamma ray emitting radioisotopes are selected for tagging the liquids phase of the fracturing material and high energy gamma ray emitting radioisotopes are selected for tagging the solids phase. The relative amount of low energy radioisotope material inside the well bore 31 relative to the amount outside the casing 35 is determined to minimize the interfering effects of borehole tracers in determining concentrations of the high energy tracers in the formations. The procedure includes detecting the intensity of gamma radiation from the tracers in the borehole and surrounding formations by a detector 38 in the borehole in proximity to the injection zones and obtaining data representative of the radiation intensity. The intensity data is then separated into an observed energy spectrum from which is obtained observed energy spectrum count rates of gamma radiation in an energy region associated with gamma radiation emitted by the low energy tracer material in at least two relatively low energy ranges, a first P of which is highly sensitive to photoelectric attenuation by iron in the well casing and a second M of which is a higher energy range primarily sensitive to Compton scattered gamma rays and much less sensitive to photoelectric absorption by iron.These count rates are then combined to obtain an observed photoelectric ratio, R.sub.p =(M/P), of the low energy tracer. Count rates of radiation are then obtained in all the energy ranges associated with gamma radiation emitted by the low energy tracer to obtain the total elemental concentration of the low energy tracer in the borehole and the formations. The amount of the low energy tracer in the borehole Tr(Bor) relative to the amount of said low energy tracer outside the casing is determined by a relation involving the observed photoelectric ratio Ph Tr(Obs) of low energy tracer, the total observed concentration of the low energy tracer Tr(Tot), and the low energy photoelectric ratios, Ph Tr(Bor) and Ph Tr(For), calibrated for the tracer in the borehole and in the formation, respectively.

82. 发明授权

US4843878A Method and apparatus for instantaneously indicating permeability and horner plot slope relating to formation testing 失效
标题翻译：用于瞬时表示与地层测试相关的渗透率和水平斜率的方法和装置
公开(公告)号：US4843878A
公开(公告)日：1989-07-04
申请号：US247542
申请日：1988-09-22
申请人： Ernest H. Purfurst , Gary K. Baird
发明人： Ernest H. Purfurst , Gary K. Baird
IPC分类号： E21B49/00 , E21B49/10
CPC分类号： E21B49/008 , E21B49/10
摘要： For use in a formation testing tool adapted to be lowered into a borehole on a logging cable, apparatus is set forth which conducts formation measurements including extension of a snorkel into a formation of interest, initiating a drawdown beginning at a first time and terminating at a second time. The flow rate in the drawdown is measured. The present apparatus and method further determine a Horner Plot for that particular formation, and measure the slope of the Horner Plot and also extend the Horner Plot to thereby obtain the intercept representative of final formation pressure after build-up. A relationship is evaluated, and computer circuitry for determining permeability responds to the slope of the Horner Plot, formation fluid viscosity, pretest flow rate and formation thickness to yield permeability.
摘要翻译：为了用于适于降低到测井电缆的钻孔中的地层测试工具，设置了进行地层测量的装置，其包括将浮潜扩展到感兴趣的地层中，从第一次开始并终止于第二次。测量下降中的流量。本装置和方法进一步确定了该特定地层的霍纳图，并测量了霍纳图的斜率，并且还扩展了霍纳图，从而获得代表积层后最终地层压力的截距。评估一种关系，用于确定渗透率的计算机电路响应Horner Plot的斜率，地层流体粘度，预测流速和地层厚度以产生渗透率。

83. 发明授权

US4842355A Multichannel optical rotary joint for well logging usage 失效
标题翻译：用于测井用途的多通道光学旋转接头
公开(公告)号：US4842355A
公开(公告)日：1989-06-27
申请号：US217736
申请日：1988-07-11
申请人： Randy Gold , Darren E. Smith
发明人： Randy Gold , Darren E. Smith
IPC分类号： G02B6/28 , G02B6/32 , G02B6/36
CPC分类号： G02B6/2848 , G02B6/28 , G02B6/32 , G02B6/3604
摘要： An optical rotary joint for use in a well logging cable is set forth in the preferred and illustrated embodiment capable of transferring two or more data streams traveling along two or more optical fiber channels. The rotary joint is constructed with a stationary portion and a coacting rotary portion. A first channel of data is delivered to an optical fiber transmitted coaxially of the stationary and rotary sides of the apparatus, transfer across the rotational plane between the two components being accomplished by opposing centrally located, concentrically arranged, coacting optical lenses. A second data channel transmitted through a second optical fiber is delivered to a lens system which converts the light into a cylinder of light coaxial with the first channel and which surrounds the optical management for the first channel. All channels other than the first channel thus are converted into coaxial hollow cylinders of light. These cylinders of light are transmitted between facing lens systems in the rotary and stationary sides of the apparatus.
摘要翻译：在优选和所示实施例中阐述了用于测井电缆的光学旋转接头，其能够传送沿着两个或更多个光纤通道行进的两个或更多个数据流。旋转接头由固定部和共同旋转部构成。数据的第一通道被传送到与设备的固定和旋转侧同轴的光纤传输，跨过两个部件之间的旋转平面传递，通过相对中心定位的同心布置的共同作用的光学透镜来实现。通过第二光纤传输的第二数据信道被传送到透镜系统，该透镜系统将光转换成与第一通道同轴的光的圆筒，并且围绕第一通道的光学管理。因此，除了第一通道以外的所有通道被转换成同轴的空心圆筒。这些圆柱形的光在设备的旋转和静止侧面的相对的透镜系统之间传输。

84. 发明授权

US4827823A Bullet firing mechanism with retrieval cable 失效
标题翻译：子弹发射机构与检索电缆
公开(公告)号：US4827823A
公开(公告)日：1989-05-09
申请号：US134435
申请日：1987-12-17
申请人： Pat B. Barrett
发明人： Pat B. Barrett
IPC分类号： E21B49/04
CPC分类号： E21B49/04
摘要： For use in a gun supporting a bullet for obtaining a core sample therein wherein the bullet is received in a chamber in the gun, a retrieval cable connecting between a pair of studs for threading to the bullet and gun, the cable being coiled to enable the cable and heads of the stud to be received in a sacrificial plastic cylindrical housing. An electrical flow path is also provided by means of a conductor optionally positioned adjacent an exploding cap and extending to an electrically isolated ground terminal. The ground terminal connects with ground through a compressed spring extending through the housing for contact against the ground.
摘要翻译：为了用于支撑子弹以获得其中的核心样品的枪，其中子弹被容纳在枪中的腔室中，连接在一对螺柱之间用于螺纹连接到子弹和枪的拾取缆索，该线缆被卷起以使得能够螺柱的电缆和头部被接收在牺牲塑料圆柱形壳体中。电流通道还通过可选地定位在爆炸盖附近并延伸到电隔离的接地端子的导体来提供。接地端子通过延伸穿过外壳的压缩弹簧与地面连接，以接触地面。

85. 发明授权

US3494186A Method and apparatus for obtaining differential logs,especially of down-hole well bore variables 失效
标题翻译：用于获取差异日志的方法和装置，特别是下井孔井变量
公开(公告)号：US3494186A
公开(公告)日：1970-02-10
申请号：US3494186D
申请日：1968-07-01
申请人： GEARHART OWEN INDUSTRIES
发明人： JOHNS EARL , LOWRIE GERALD MAX
IPC分类号： E21B47/00 , G01V11/00 , E21B49/00 , G01W1/00
CPC分类号： E21B47/00 , G01V11/002

86. 发明授权

US3493921A Sonic wave energy apparatus and systems 失效
标题翻译： SONIC波浪能量装置和系统
公开(公告)号：US3493921A
公开(公告)日：1970-02-03
申请号：US3493921D
申请日：1968-02-05
申请人： GEARHART OWEN INDUSTRIES
发明人： JOHNS EARL
IPC分类号： G01V1/52 , G10K11/02 , G01V1/16
CPC分类号： G10K11/02 , G01V1/523 , Y10T29/49877

87. 发明授权

US3367282A Shaped charge unit body and method of making same 失效
标题翻译：成形装料机体及其制作方法
公开(公告)号：US3367282A
公开(公告)日：1968-02-06
申请号：US47123865
申请日：1965-07-12
申请人： GEARHART OWEN INC
发明人： FRANKS ARCHIE M , OWEN HARROLD D
IPC分类号： F42B1/036 , F42B3/00
CPC分类号： F42B1/036 , F42B3/00

88. 发明授权

US3356140A Subsurface well bore fluid flow control apparatus 失效
标题翻译：地下井筒流体流量控制装置
公开(公告)号：US3356140A
公开(公告)日：1967-12-05
申请号：US47153965
申请日：1965-07-13
申请人： GEARHART OWEN INC
发明人： DOUGLAS YOUNG JAMES
IPC分类号： E21B33/129
CPC分类号： E21B33/1294

89. 发明授权

US5406078A Induced gamma ray spectorscopy well logging system 失效
标题翻译：诱导γ射线探测测井系统
公开(公告)号：US5406078A
公开(公告)日：1995-04-11
申请号：US218682
申请日：1994-03-28
申请人： Larry A. Jacobson
发明人： Larry A. Jacobson
IPC分类号： G01V5/10
CPC分类号： G01V5/101
摘要： A system for measuring fast neutron induced gamma ray energy spectra in cased wellbores. The system includes an electronic source of monoenergetic 14 MeV fast neutrons, a high density bismuth germanate scintillation detector, a downhole pulse height analyzer and a highly accurate gain stabilizer circuit. The gain stabilization utilizes the iron (Fe) edge in the catpure gamma ray spectrum to establish system gain since iron is always present in the tool case and the wellbore casing.
摘要翻译：用于测量套管井筒中快速中子诱导的γ射线能谱的系统。该系统包括单能14MeV快中子的电子源，高密度铋锗酸闪烁检测器，井下脉冲高度分析仪和高精度增益稳定器电路。增益稳定化利用了阴极伽马射线光谱中的铁（Fe）边缘来建立系统增益，因为铁总是存在于工具箱和井眼套管中。

90. 发明授权

US5387907A High data rate wireline telemetry system 失效
标题翻译：高数据速率有线遥测系统
公开(公告)号：US5387907A
公开(公告)日：1995-02-07
申请号：US81710
申请日：1993-06-25
申请人： Wallace R. Gardner , Kenneth R. Goodman , Robert D. Puckett
发明人： Wallace R. Gardner , Kenneth R. Goodman , Robert D. Puckett
IPC分类号： E21B47/12 , G01V1/22 , G01V1/00
CPC分类号： E21B47/12 , G01V1/22
摘要： In a well logging tool forming a data stream for telemetry to the surface, an encoding system is located downhole cooperative with surface located decoding equipment. The encoder converts serial data into NRZ symbols, then duobinary code of seven levels and then into quadrature modulating signals on a complex carrier. The decoder at the well surface receives the quadrature modulated complex carrier, forms inphase and quadrature components and decodes the two components. The decoder includes circuit means removing the intersignal distortion and also intersymbol smearing. This enables very significant telemetry ratio.
摘要翻译：在测井工具中，形成用于遥测地面的数据流，编码系统位于井下与地面解码设备协同工作。编码器将串行数据转换为NRZ符号，然后将七个电平的二进制码转换为复合载波上的正交调制信号。井表面的解码器接收正交调制复数载波，形成同相和正交分量并对两个分量进行解码。解码器包括消除信号间畸变和码间拖尾的电路装置。这使得非常显着的遥测比率。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式