In this study, we installed two fiber optic cables with different designs into a new well, a soft-flat cable and a stainless-steel cable, for distributed fiber optic sensing in cementing and water
A natural evolution of e-coil, the replacement of the armored logging cable with a thin fiber-optic data conduit resulted in the development of Fiber
This paper discusses the first fiber-optic (FO) installation in a vertical high-pressure high-temperature deep gas well in PDO, Oman. A specially designed fiber-optic cable was successfully
We pioneered accelerated aging tests for optical fibers at high temperatures; the fiber resulting from this research demonstrates an almost 50-fold increase in light transmission, exceptional resistance to
Fiber optic cables have the advantages of high temperature resistance, high pressure resistance, corrosion resistance, and high accuracy in measuring temperature DTS data. They are widely used
16 wellbore fiber-optic installations can be conducted by mounting the sensing cable to a rigid structure ontrolled landing of the cable. We analyze a 18 geothermal well with a 3.6 km long fiber-optic
However, a number of shale gas wells need to be evaluated in the effects of well drilling and completion and fracturing, providing the guidance for
Implementation: Fiber-optic cables are installed along the wellbore. The DTS system sends a laser pulse down the fiber, and the backscattered light is analyzed to determine temperature variations along the
Wireline Fiber Optic Cable Fibercore, in conjunction with selected partners, offer wireline logging cables that utilize Fibercore''s hydrogen resistant, high
The experimental results demonstrated that this fiber-optic communication system is capable of working steadily over a long period of time in harsh environments around 155°C to realize
Fiber-optic sensors are immune to electromagnetic interference, have compact dimensions, and can withstand extreme conditions such as high temperature, pressure, and
In the HE-35 high-temperature geothermal well (Iceland), a cable with a “hermetic” carbon/polyimide-coating fiber was installed, also to avoid the effect of hydrogen darkening.
This paper analyzes the demand of temperature measurement for high temperature wells of oilfields and demonstrates the unique advantages of the distributed optical fiber temperature
Our team has designed and executed some of the biggest permanent and dip-in projects in North America, including the largest permanent
Fiber optic cable is deployed into the wellbore to acquire continuous temperature and acoustic data to offer high-resolution and real-time production data as an alternative to conventional
If we need to measure the wellbore temperature distribution curve, we need to install a downhole Ultra box and connect it to the optical fiber inside the coiled tubing for measurement.
This development has led to a new logging cable with superior mechanical properties, containing eight electrical wires and three optical fibers with a data rate of at least 10 Mbitsl second each. This fiber
The simulated optical path of optical fiber composite submarine power cable in engineering field was established. The measurement experiment of temperature and strain was
Optimum performance for sensing objectives depends on cable type, installation method, cable position and the site environmental conditions. This applies to existing cables as well as those installed
Infrared imagery and custom high spatial resolution fiber-optic distributed temperature sensors reveal complex thermal dynamics at one of the seeps with a relatively stable, cold
Abstract The Distributed Fibre-Optic Temperature-Sensing Technique (DTS) represents a new physical approach for temperature measurements in the
This paper reviews the sensing principle, structural design, and temperature measurement performance of fiber-optic high-temperature sensors, as well as recent significant
This paper reviews the complete design and implementation of the in-well fiber-optic deployment, field operational issues, analyses, and interpretation of the sensing results.
Combines an electric conductor with fiber-optic lines in a single 1/4-in cable—supporting both power delivery and data acquisition. Provides robust
What Is Distributed Temperature Sensing? Distributed temperature sensing (DTS) measures temperature distribution over the length of an optical fiber cable using
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