公开(公告)号：WO2021257166A1

公开(公告)日：2021-12-23

申请号：PCT/US2021/026788

申请日：2021-04-12

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： ROWE, Mathew Dennis

IPC: G01N21/17 ,  G01N33/24 ,  E21B49/08 ,  E21B49/00 ,  G01N1/08 ,  G01N21/35 ,  G01N21/65 ,  G06N20/00 ,  E21B47/0025 ,  E21B47/14 ,  G01N1/28 ,  G01N2021/1704 ,  G01N2021/1706 ,  G01N21/1702 ,  G01N2291/0232 ,  G01N2291/02818 ,  G01N2291/0289 ,  G01N29/0654 ,  G01N29/2418 ,  G01N29/2425 ,  G01N33/241

Abstract: This disclosure presents a process to determine characteristics of a subterranean formation proximate a borehole. Borehole material can be typically pumped from the borehole, though borehole material can be used within the borehole as well. Extracted material of interest can be collected from the borehole material and prepared for analyzation. Typically, the preparation can utilize various processes, for example, separation, filtering, moisture removal, pressure control, cleaning, and other preparation processes. The prepared extracted material can be placed in a photoacoustic device where measurements can be taken, such as a photoacoustic imager or a photoacoustic spectroscopy device. A photoacoustic analyzer can generate results utilizing the measurements, where the results of the extracted material can include one or more of fracture parameters, fracture plane parameters, permeability parameters, porosity parameters, and composition parameters. The results can be communicated to other systems and processes to be used as inputs.

公开(公告)号：WO2022267555A1

公开(公告)日：2022-12-29

申请号：PCT/CN2022/079902

申请日：2022-03-09

Applicant: 暨南大学

Inventor： 郑华丹 ,  吕昊华 ,  林灏杨 ,  朱文国 ,  余健辉 ,  李真 ,  帕提米斯科彼得 ,  桑保罗安吉洛 ,  吉吉洛玛丽莲娜 ,  斯帕格诺洛文森佐·路易吉

IPC: G01N29/02 ,  G01N29/24 ,  G01N21/17 ,  G01N2021/1704 ,  G01N21/1702 ,  G01N29/022 ,  G01N29/2425

Abstract: 一种光声光谱测声器(5)以及包括光声光谱测声器(5)的气体探测装置，光声光谱测声器(5)包括：具有中心轴线(A1)和垂直于中心轴线(A1)的对称线(A2)的圆柱筒(50)；设置在圆柱筒(50)入口端的入射窗口(51)；设置在圆柱筒(50)的出口端的透光的出射窗口(52)；设置在圆柱筒(50)外壁的进气口(53)和出气口(54)；由入射窗口(51)和出射窗口(52)之间封闭的径向腔气室(56)；在径向腔气室(56)内固定布置的石英音叉(55)，使得圆柱筒(50)的对称线(A2)沿石英音叉(55)的两叉臂之间的缝隙中间穿入石英音叉座，并且圆柱筒(50)的中心轴线(A1)通过石英音叉(55)的两叉臂之间的缝隙。采用径向共振模式对谐振腔的长度要求低，使得光束准直更便利；强径向共振模式使得输出信号大幅增强；径向腔同时用作谐振腔和气室，简化结构及减少体积。