专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

131. 发明授权

US5912459A Method and apparatus for fluorescence logging 失效
公开(公告)号：US5912459A
公开(公告)日：1999-06-15
申请号：US873849
申请日：1997-06-12
申请人： Oliver C. Mullins , Xu Wu , Philip Rabbito
发明人： Oliver C. Mullins , Xu Wu , Philip Rabbito
IPC分类号： G01V8/02
CPC分类号： G01V8/02 , E21B47/0002
摘要： A method of locating in situ hydrocarbons in underground formations comprises illuminating the borehole wall with light such as visible, infrared or ultraviolet light or combinations of these, from a source in a tool such as a wireline logging tool or an LWD tool, detecting any fluorescent radiation with a detector in the tool and analyzing the florescent radiation to determine the presence of hydrocarbon in the formation. The tool is moved through the borehole while irradiating the formation and detecting fluorescence. The borehole wall is illuminated and fluorescence detected through a window in the tool which is pressed against the borehole wall with sufficient force to displace any mudcake. The window is made of a wear resistant material such sapphire or diamond and is conveniently secured in a wear resistant housing which might be made of tungsten carbide or the like.

132. 发明授权

US5859430A Method and apparatus for the downhole compositional analysis of formation gases 失效
标题翻译：地层气体井下成分分析方法及装置
公开(公告)号：US5859430A
公开(公告)日：1999-01-12
申请号：US827647
申请日：1997-04-10
申请人： Oliver C. Mullins , Xu Wu
发明人： Oliver C. Mullins , Xu Wu
IPC分类号： E21B47/10 , E21B49/10 , G01N21/05 , G01N21/35 , G01N33/28 , G01N33/24
CPC分类号： E21B47/102 , E21B49/10 , G01N21/0303 , G01N21/05 , G01N21/359
摘要： A borehole tool analyzes the composition of gases flowing from a formation. The tool includes an optical fluid analyzer (OFA) and a gas analysis module (GAM). The OFA determines when fluid flowing into the tool has become substantially only gas. The gas is then diverted to the GAM, thereby avoiding the possibility of oil depositing itself on a optical window and interfering with a proper analysis. The GAM includes a near infrared ray light source, at least one photo-detector, a gas sample cell (or cells) having portions with different path lengths, each portion having an optical window, and fiber optics which direct light in first paths from the source to the sample cell, and from the sample cell to the photo-detectors. By providing cells with different path lengths, issues of dynamic range are obviated. The GAM also preferably includes a second optical path which goes directly from the light source to the photo-detectors and is used for canceling drift, and a third optical path which goes from the light source, through a known standard such as methane to the photo-detectors and is used for compensation of shifts in actual hydrocarbon peak locations or shifts in optical filter wavelengths. Analysis of the different hydrocarbon gas components of the gas stream is conducted by analysis of selected CH vibrational peaks in the 5700 cm.sup.-1 to 6100 cm.sup.-1 range.
摘要翻译：井眼工具分析了从地层流出的气体的组成。该工具包括光学流体分析仪（OFA）和气体分析模块（GAM）。 OFA确定流入工具的流体何时已经变得基本上只有气体。然后将气体转移到GAM，从而避免了将油自身沉积在光学窗口上并干扰适当分析的可能性。 GAM包括近红外线光源，至少一个光检测器，具有不同路径长度的部分的气体样品池（或电池），每个部分都具有光学窗口，以及光纤，其将来自第一路径的光引导来源于样品池，以及从样品池到光电探测器。通过为单元提供不同的路径长度，可以避免动态范围的问题。 GAM还优选地包括直接从光源到光电检测器并且用于抵消漂移的第二光路和从光源通过已知标准例如甲烷到照片的第三光路用于补偿实际碳氢化合物峰值位置的偏移或光学滤波器波长的偏移。通过分析5700cm-1至6100cm -1范围内选择的CH振动峰，分析气流的不同烃气体成分。

133. 发明授权

US5266800A Method of distinguishing between crude oils 失效
标题翻译：区分原油的方法
公开(公告)号：US5266800A
公开(公告)日：1993-11-30
申请号：US955100
申请日：1992-10-01
申请人： Oliver C. Mullins
发明人： Oliver C. Mullins
IPC分类号： G01N21/35 , G01N33/28 , G01V9/04 , G01N21/31
CPC分类号： G01N21/359 , G01N21/3577 , G01N33/2823
摘要： Methods for distinguishing among oil samples, and more particularly between a fluid containing oil base mud and formation oil samples are described. The methods all rely on the discovery that the optical absorption spectrum of all crude oils in the visible and near infrared spectra can be described according to the equation OD=ae.sup.Eb, where (OD) is a measured optical density, (b) is a value between 0.37 and 0.55 chosen according to the wavenumber (E) and can be chosen as a constant equal to 4.6.times.10.sup.-4 cm, and (a) is an unknown which classifies the crude oil. By making measurements and solving for (a), a crude oil can be classified. In a flow stream which has a changing oil content, such as may be obtained by a borehole tool which obtains fluid samples from the formation, by monitoring the unknown (a), a determination may be made as to when a formation oil is being obtained as opposed to a mud filtrate.
摘要翻译：描述了用于区分油样的方法，更具体地说在含油基泥浆和地层油样品之间的方法。所有这些方法都依赖于以下发现：可见光和近红外光谱中所有原油的光吸收光谱可以根据等式OD = aeEb来描述，其中（OD）是测量的光密度，（b）是值根据波数（E）选择在0.37和0.55之间，并且可以选择为等于4.6×10 -4 cm的常数，并且（a）是未知的，其分类原油。通过对（a）进行测量和求解，可以对原油进行分类。在具有变化的油含量的流动流中，例如可以通过通过监测未知（a）来获得来自地层的流体样品的钻孔工具获得，可以确定何时获得地层油而不是泥浆滤液。

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