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Search Petrowiki: Fast gauges
...Glossary:Fast gauges Gauges with a high sampling rate...
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
...Gauges with a high sampling rate...
- Information Technology > Knowledge Management (0.60)
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...Glossary:Fann viscometer * Glossary:Far field * Glossary:Farm-in * Glossary:Farm-out * Glossary:Fast gauges * Glossary:...Fast line * Glossary:...Fast taper * Glossary:Fatigue * Glossary:Fatigue strength * Glossary:Fault * Glossary:Fault plane *...
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...the pressure in the probe to the formation pore pressure. Pressure measurements are taken both with fast-acting strain ...gauges and high-accuracy quartz ...gauges. Tests can be acquired either with the pumps on or off. The drawdown and buildup profiles also prov...
Formation Testing While Drilling (FTWD) has a broad interest in all the different disciplines involved in drilling and evaluating the well. For the drilling engineer and the geologist, a number of different approaches to the problem of acquiring formation-pressure data while drilling have been tried. A sophisticated subindustry has evolved aimed at pore-pressure prediction using proven methods such as * "D exponent" * Connection gas * Cuttings analysis Real-time formation-pressure data will, at a minimum, allow more-frequent calibration of pressure models. For the reservoir engineer, it opens the possibility of "barosteering"; where there is doubt in mature fields about whether a compartment has been drained, immediate measurements can be taken, and a decision can be reached about whether to geostop or geosteer for a more-promising compartment. It allows immediate testing to verify whether geological barriers are sealing, and it opens the possibility of pressure profiling to identify (from gradient information) types of fluids present and contact points.
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...the pressure in the probe to the formation pore pressure. Pressure measurements are taken both with fast-acting strain ...gauges and high-accuracy quartz ...gauges. Tests can be acquired either with the pumps on or off. The drawdown and buildup profiles also prov...
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- North America > United States > Texas (0.72)
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- Geophysics > Borehole Geophysics (1.00)
- Geophysics > Seismic Surveying (0.93)
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...esolve these effects has led to a substantial and ongoing effort by the industry to develop robust, fast resistivity-modeling packages. Wave resistivity tools are run in most instances in which LWD syste...
By analyzing cuttings, drilling mud, and drilling parameters for hydrocarbon-associated phenomena, we can develop a great deal of information and understanding concerning the physical properties of a well from the surface to final depth. A critical function in data analysis is familiarity with the different sensors used for gathering surface data. These sensors can be grouped as follows: * Depth Tracking.
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- North America > United States > Texas (0.96)
- North America > United States > California > Sacramento Basin > 4 Formation (0.99)
- North America > United States > Alaska > North Slope Basin > Kuparuk River Field > Kuparuk Field (0.99)
- Well Drilling > Wellbore Design > Wellbore integrity (1.00)
- Well Drilling > Well Planning > Trajectory design (1.00)
- Well Drilling > Pressure Management > Well control (1.00)
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...dout vs. downhole recording * 3 Surface shut-in vs. downhole shut-in * 4 Bottomhole conveyance of gauges * 4.1 Drillstem test string * 4.2 Electric line * 4.3 Slickline * 4.4 Coiled tubing * 4.5 Trac...s (e.g., maximum temperature and pressure, measurement resolution and accuracy)?[1] * How will the gauges be conveyed to the bottomhole measuring points? * Is there a need to perform continuous or repeate...-in valves can be operated by a clock, small explosive squib, or battery. Bottomhole conveyance of gauges Pressure and temperature ...
The acquisition of bottomhole pressure and temperature data can be planned and executed in a cost-effective manner with a minimum disruption to normal operating routines. In many cases, early on-site interpretation is useful in guiding decisions about continuing the acquisition program. Several questions should be answered at the design stage: * What are the objectives of measurement: static pressure, reservoir dynamics, fluid characterization, vertical pressure and temperature profile, well flow characterization, or other? Measurements can be transmitted to the surface, usually via an electric cable, or recorded in downhole memory powered by batteries. SRO has the obvious advantage of providing data in real time.
- Information Technology > Architecture > Real Time Systems (0.56)
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...ation and to differences in the far-field stresses. Two modes are produced: a slow shear wave and a fast shear wave. At low frequencies, these propagate at the orientations of the least and greatest stres...an orientation device to a dipole logging tool, it is possible both to derive the velocities of the fast and slow shear waves and also to determine their directions. Crossed-dipole logs are recorded in s...uch a way as to allow computation of the velocities and orientations of fast and slow dipole modes. One potential benefit of these analyses is that theoretical considerations a...
The most reliable way to determine stress orientation is to identify features (either geological features or wellbore failures) the orientation of which is controlled by the orientations of the present-day in-situ stresses. Other methods that rely on observing the effect of stress on rock properties using oriented core have been found to be less reliable and subject to influence by factors other than in-situ stress. As previously discussed, wellbore breakouts occur in vertical wells at the azimuth ofSHmin, and drilling-induced tensile failures occur 90 to breakouts at the azimuth ofSHmax. Therefore, the orientations of these stress-induced wellbore failures uniquely define the orientations of the far-field horizontal stresses when using data from vertical wells. This is true for breakouts whether they are detected using 4-arm- or 6-arm-oriented caliper logs or using electrical or acoustic images, whether obtained by wireline orlogging while drilling (LWD) tools.
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- North America > United States > Texas (0.28)
- Geophysics > Seismic Surveying (1.00)
- Geophysics > Borehole Geophysics (1.00)
- North America > United States > Texas > Travis Peak Formation (0.99)
- North America > United States > Mississippi > Travis Peak Formation (0.99)
- North America > United States > Louisiana > Travis Peak Formation (0.99)
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...were made with one-time-reading pressure bombs and maximum-indicating or maximum-recording pressure gauges that lacked the accuracy, reliability, or durability of present-day technology. The varied uses of... During Fluid Flow * 2 Reservoir Temperature * 3 Metrology of Bottomhole Pressure and Temperature Gauges * 3.1 Static Metrological Parameters * 3.2 Dynamic Metrological Parameters * 4 Calibration and S...tandard Evaluation Tests for Pressure Gauges * 4.1 Choosing the Pressure-Temperature Calibration Points * 4.2 Deriving the Pressure Calibratio...
The practice of using bottomhole pressure measurements to improve oil and gas production and solve problems of reservoir engineering began around 1930. Initially, pressures were calculated using fluid levels; a later method was to inject gas into the tubing until the pressure became constant. The earliest bottomhole pressure measurements were made with one-time-reading pressure bombs and maximum-indicating or maximum-recording pressure gauges that lacked the accuracy, reliability, or durability of present-day technology. The varied uses of bottomhole pressure and temperature measurements have increased in scope during the past two decades as instrumentation technologies have produced more reliable and accurate tools. These advances have made more applications possible, including use in multilayer reservoirs, horizontal wells, interference testing, and drawdown test interpretation. This chapter is focused mainly on the types of measurements made and the tools available.
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- North America > United States > Texas (0.28)
...e. "Fishtail"-type PDC bits are an exception as bits; for this type of bit, the ability to clean in fast-drilling, soft formations is thought to be a more important body feature than profile. The numeral ...and PDC bits only, gauge is measured with an API-specified ring gauge. (API specifications for ring gauges for roller-cone bits have not been issued.) * Roller-Cone Bit Gauge Grading. For three-cone bits, ...
Bit classification allows efficient selection and use of polycrystalline diamond compact (PDC) and diamond drill bit. The classification system currently in use was developed by the International Association of Drilling Contractors (IADC). IADC classification codes for each bit are generated by placing the bit style into the category that best describes it so that similar bit types are grouped within a single category. The version currently used was introduced in 1992 using criteria that were cooperatively developed by drill-bit manufacturers under the auspices of SPE.[1],[2] The system leaves a rather broad latitude for interpretation and is not as precise or useful as the IADC Classification System for Roller-Cone Bits.[3] Bearing and seal (B) criteria (not used for PDC bits) * 2.1.3
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