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    • 41. 发明授权
    • Method and apparatus for determining flow characteristics within a well
    • 用于确定井内流量特性的方法和装置
    • US4558219A
    • 1985-12-10
    • US395198
    • 1982-07-06
    • Aladain J. LeBlancRobert A. Turney
    • Aladain J. LeBlancRobert A. Turney
    • E21B27/02E21B47/10G01V5/08
    • E21B47/1015E21B27/02
    • An elongated body member adapted to traverse a well contains a chamber for holding a quantity of a tracer element to be injected into the well. A radially extendable arm is pivotally attached to the body member and is adapted to be extended and retracted by a first drive system within the body member. A nozzle is coupled to the arm with a path of fluid communication provided between the chamber and the nozzle such that a second drive system within the body member may cause the tracer element to traverse such path and be released into the well fluid flow column from a location adjacent to the body member and preferably to be released in a generally longitudinal direction relative to the well. One or more detectors within the body member suitable for detecting the tracer element are utilized to determine the locations and/or flow velocity of the tracer element and therefore of the well fluid.
    • 适于横穿井的细长主体构件包含用于保持要注入井的示踪元件的量的室。 可径向延伸的臂枢转地附接到本体构件并且适于由主体构件内的第一驱动系统延伸和缩回。 喷嘴通过设置在室和喷嘴之间的流体连通路径联接到臂,使得主体构件内的第二驱动系统可以使示踪元件穿过这样的路径并从一个 位于邻近本体构件的位置,并且优选地相对于该孔沿大致纵向的方向释放。 适用于检测示踪元件的主体部件内的一个或多个检测器用于确定示踪元件的位置和/或流速,因此确定井流体的位置和/或流速。
    • 42. 发明授权
    • Evaluation of the interaction with radiant energy of substances
traversed by a bore hole
    • US4403146A
    • 1983-09-06
    • US301653
    • 1981-09-14
    • Jacob Neufeld
    • Jacob Neufeld
    • G01V3/30G01V5/08G01V5/00
    • G01V5/08G01V3/30
    • Disclosed is a well logging method and apparatus for obtaining impulse response of a formation traversed by a bore hole by means of correlation techniques. Use is made of a source of radiant energy and of a control element for said source to produce a substantially random or pseudorandom sequence of discrete bursts of radiant energy from the source to cause interactions of these bursts with the formation whereby characteristic radiations of interactions are produced. A detector is provided which is responsive to these radiations to produce corresponding signals. In one embodiment of my invention the impulse response, expressed by a function h(t), is obtained by crosscorrelating signals produced by the detector with signals representing the bursts of radiant energy from the source. In another embodiment the impulse response h(t) of the formation is obtained by autocorrelating signals produced by the detector. In another embodiment of my invention the outputs of two detectors, differently spaced from a source of radiant energy, are crosscorrelated. Using the function h(t), valuable information regarding physical properties of the formation may be obtained. The source of radiant energy may be a source of energetic neutrons, particularly of the deuterium-tritium type, or a source of gamma radiation or of microwaves, or a source of any other form of radiant energy.
    • 44. 再颁专利
    • Mrs- ejector
    • 空值
    • USRE27272E
    • 1972-01-11
    • US27272D
    • 1970-04-06
    • G01V5/08G21H5/02
    • E21B47/1015G01V5/08G21H5/02
    • 1. THE METHOD OF INVESTIGATING IN A WELL THE FLOW OF WATER INTORDUCED IN THE WELL AND INTO EARTH FORMATIONS PENETRATED BY THE WELL INCLUDING: INTRODUCING WATER AT A CONSTANT RATE FOR A PREDETERMINED PERIOD OF TIME SUFFICIENTLY LONG TO CAUSE STABILIZATION, POSITIONING EARTH FORMATIONS AND DURING THE INVESTIGATION, POSITIONING A DETECTOR DEVICE IN THE WELL ABOVE THE EXPECTED LOCATIONS OF OUTWARD FLOW OF WATER INTO THE EARTH FORMATIONS, IN TRODUCING A QUANTITY OF TRACER MATERIAL INTO THE WELL A PREDETERMINED DISTANCE ABOVE THE DETECTOR DEVICE, DETERMINING BY THE OUTPUT OF THE DETECTOR DEVICE THE PERIOD OF TIME REQUIRED FOR THE TRACER MATERIAL TO MOVE PAST THE DETECTOR AFTER ITS INTRODUCTION INTO THE WELL, AND THEN MOVING THE DETECTOR DEVICE SUCCESSIVELY IN THE WELL AND THROUGH THE TRACER MATERIAL AS IT MOVES DOWNWARDLY IN THE WELL TO DETERMINE LOCATIONS OF OUTWARD FLOW OF THE TRACER MATERIAL FROM THE WELL.