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METHOD FOR DETERMINING HYDROCARBON CONCENTRATION IN DRILLED SOLIDS USING NEAR INFRARED SPECTROSCOPY

机译：近红外光谱法测定钻井液中烃浓度的方法

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摘要

Hydrocarbons concentrations are determined in drilling cuttings samples by generating a model for predicting hydrocarbons concentrations. Methods include dividing multiple samples removed from drilling fluid into two one set analyzed using a retort, and another set analyzed using a handheld NIR spectrometer to obtain NIR diffuse reflectance data. PLS analysis is used to correlate the retort data with the diffuse reflectance data to generate a calibration model. The model is validated with samples having unknown hydrocarbons concentration. The model is used to predict the hydrocarbons concentration for samples removed from drilling fluid taken from the rig site using the spectrometer to obtain diffuse reflectance data. During measurements, each sample contains 0.1 to 10 wt % moisture and each sample is in a clear container pressed against the spectrometer window such that the IR source from the handheld device can pass to the drilled solids sample within the clear container without opening the clear container.

机译：通过生成预测碳氢化合物浓度的模型来确定钻屑中的碳氢化合物浓度。方法包括将从钻井液中取出的多个样品分成两部分：使用a将其分析，然后使用手持NIR光谱仪进行分析，以获得NIR漫反射率数据。 PLS分析用于将蒸馏瓶数据与漫反射数据相关联以生成校准模型。用具有未知碳氢化合物浓度的样品验证该模型。该模型用于预测使用光谱仪从钻机现场采集的钻井液中取出的样品中的碳氢化合物浓度，以获得漫反射率数据。在测量过程中，每个样品都包含0.1至10 wt％的水分，并且每个样品都放在一个透明容器中，压在光谱仪窗口上，以使来自手持式设备的红外源可以传递到透明容器内的钻井固体样品而无需打开透明容器。

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公开/公告号US2020132597A1

专利类型
公开/公告日2020-04-30

原文格式PDF
申请/专利权人 CHEVRON U.S.A. INC.;
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申请/专利号US201816175156
发明设计人 TONI ZHANG MIAO;JOHN BRYAN TRENERY JR.;DEYUAN KONG;ROOPA KAMATH;ROBERT NEIL TROTTER;CORY JAMES MCDANIEL;
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申请日2018-10-30
分类号G01N21/359;G01N33/24;
国家 US
入库时间 2022-08-21 11:21:50

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