Method for providing a natural gamma-ray lag in conjunction with assay operations within a borehole专利检索-中子探测器传感器与探测器专利检索查询-专利查询网

Method for providing a natural gamma-ray lag in conjunction with assay operations within a borehole

阅读：192发布：2021-05-13

专利汇可以提供Method for providing a natural gamma-ray lag in conjunction with assay operations within a borehole专利检索，专利查询，专利分析的服务。并且A borehole logging tool is utilized to assay the formations surrounding the borehole by operating a pulsed neutron source to irradiate the formations with bursts of neutrons. A neutron detector monitors the delayed neutrons produced by the formations upon irradiation by the neutrons, and a gamma-ray detector monitors the delayed gamma rays produced by the formations upon irradiation by the source neutrons. The gamma-ray detector is also operated between assay operations to detect the natural gamma radiation of the formations being assayed.，下面是Method for providing a natural gamma-ray lag in conjunction with assay operations within a borehole专利的具体信息内容。

权利要求

1. In the method of logging the formations traversed by a borehole in which assay operations are carried out by: a. cyclically operating a neutron source to irradiate the formations surrounding the borehole with bursts of neutrons, b. operating a neutron detector over a time interval between bursts of neutrons from said neutron source during which said neutrons have disappeared but delayed neutrons are being emitted from the formations, thereby detecting the quantity of delayed neutrons emitted during said time interval, and c. operating a gamma-ray detector which is located sufficiently close to said neutron source and said neutron detector so as to detect delayed gamma rays emitted from oxygen in the formations when irradiated with neutrons during each burst of said neutron source, the quantity of said delayed gamma rays being representative of the quantity of neutrons produced by said neutron source, the improvement comprising the step of: operaTing said gamma-ray detector between each assay operation to detect the natural gamma rays from the formation at the level at which an assay operation is carried out, the path adjacent said neutron detector and said gamma-ray detector through which said delayed neutrons and said delayed gamma rays pass during assay operations and through which said natural gamma rays pass between assay operations comprising a material having the following characteristics: i. is essentially transparent to the passage of neutrons, delayed gamma rays, and natural gamma rays, and ii. will not become activated upon exposure to neutrons during the assay operation to produce radioisotopes which, upon decay with their characteristic half life, would produce gamma radiation that would interfere with the detection of the natural gamma rays between assay operations.

2. The method of claim 1 wherein the neutrons and gamma rays are detected by way of a path consisting of zirconium.

3. The method of claim 1 wherein the neutrons and gamma rays are detected by way of a path consisting of beryllium.

说明书全文

相关专利内容

标题	发布/更新时间	阅读量
地层的近场灵敏度和利用井眼中的径向分辨率的水泥孔隙度测量	2020-05-08	710
基于三维时空动力学的大反应性测量方法	2020-05-12	426
核素识别方法、核素识别系统及光中子发射器	2020-05-12	346
一种消除自给能中子探测器信号延时的方法	2020-05-16	418
一种核电站用同轴电缆	2020-05-13	582
一种用于塑性地雷探测的中子背散射成像装置	2020-05-14	432
脉冲选通式中子探测器及其探测方法	2020-05-08	593
一种套娃中子谱仪	2020-05-14	208
用于核辐射探测的半导体中子探测器	2020-05-16	973
一种核电厂次临界度直接测量系统及硬件平台和测量方法	2020-05-11	179

高效检索全球专利

专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。

我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。

申请试用

分析报告

专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。

申请试用

中子探测器热门专利

热门分类

Method for providing a natural gamma-ray lag in conjunction with assay operations within a borehole

该功能需要专业版企业版VIP权限，您可以：