发明名称 |
Resolution enhancement for subterranean well distributed optical measurements |
摘要 |
Enhancing resolution of distributed optical measurements along a wellbore can include acquiring optical signals during an acquisition time period, thereby producing a convolved profile along the wellbore, and deconvolving the profile using a first function corresponding to the acquisition time period, thereby determining a second function. Another method of enhancing resolution of distributed temperature measurements along a wellbore can include acquiring optical backscatter signals during at least first and second acquisition time periods, thereby producing respective first and second convolved temperature profiles along the wellbore; deconvolving the first temperature profile using a first function corresponding to the first time period, thereby determining a second function; and deconvolving the second temperature profile using the second function, thereby determining the first function corresponding to the second time period. |
申请公布号 |
US8930143(B2) |
申请公布日期 |
2015.01.06 |
申请号 |
US201012835952 |
申请日期 |
2010.07.14 |
申请人 |
Halliburton Energy Services, Inc. |
发明人 |
Sierra Jose R.;Glasbergen Gerard |
分类号 |
G01V9/00;E21B47/06;E21B47/12;G01K1/18;G01K11/32 |
主分类号 |
G01V9/00 |
代理机构 |
Smith IP Services, P.C. |
代理人 |
Smith IP Services, P.C. |
主权项 |
1. A method of enhancing resolution of distributed temperature measurements along a wellbore in a subterranean well, the method comprising:
acquiring optical signals during at least a first acquisition time period using an optical waveguide extending longitudinally through the wellbore, thereby producing a first distributed temperature measurement profile along a first longitudinal section of the wellbore, wherein the first distributed temperature measurement profile is a convolution of first and second functions; and deconvolving the first distributed temperature measurement profile using the first function, thereby determining the second function, wherein the first function describes a velocity of fluid along the first longitudinal section of the wellbore and the second function describes a temperature distribution shape along the first longitudinal section of the wellbore. |
地址 |
Houston TX US |