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- ==Accuracy of measured pressures== ...gauges measure pressures: strain and [[quartz]]. The table below shows the accuracy and precision of both types.2 KB (295 words) - 17:54, 17 February 2022
- ==Accuracy== This method's accuracy mainly depends on estimates of mud weight. The accuracy of mud weight estimates, measured periodically from the mud pits at the wel4 KB (572 words) - 17:56, 17 February 2022
- ...cepted range of measurement accuracy and a list of factors that may affect accuracy, productivity, and cost. ...able number|1}}Gravity methods and factors affecting production, cost, and accuracy6 KB (854 words) - 16:19, 20 January 2022
- ...anges may limit correlation accuracy. Six main problems limit the utility, accuracy, and confidence of correlations:5 KB (784 words) - 15:28, 15 February 2022
- ...s a good initial interpretation. However, the true measure of merit is the accuracy of the predictions inherent in this first hypothesis and the robustness of3 KB (380 words) - 14:31, 18 February 2022
- ...able, and the choice of method generally depends on a tradeoff between the accuracy necessary and the desired computing time. In general, the type of data to b ...tions can be added, though at high computing times and never with complete accuracy. Ray methods are the methods of choice for many structural verification pro10 KB (1,513 words) - 21:16, 19 January 2022
- ...condensate analysis|Oil or condensate density]] can be estimated to useful accuracy if stock tank [[API gravity]] and [[Petroleum reservoir fluid properties#So3 KB (355 words) - 15:18, 17 February 2022
- One of the most critical parameters in typical surveys is the high accuracy needed in elevation control. Submeter accuracies are usually necessary, exc4 KB (519 words) - 14:16, 31 January 2022
- ...sive review of error sources for mechanical orientation and comparisons of accuracy with other techniques. Core orientation techniques are capable of achieving ...the core tend to precess along the length of the core. Hence, orientation accuracy in part depends on the ability to recognize and quantify these effects. Nel13 KB (1,964 words) - 20:50, 19 January 2022
- ...rmines the accuracy of your geological interpretation. If you question the accuracy of any part of the base map, consult with the person who drafted the map or13 KB (1,936 words) - 21:29, 21 January 2022
- ...ssociated or connected with this Web site. AAPG is not responsible for the accuracy of information contained in any downloaded article, publication, or other p4 KB (654 words) - 18:31, 2 August 2013
- ...ch as computational efficiency, accuracy for imaging steep reflectors, and accuracy in the presence of spatial variation of velocity. Likewise, each can produc The additional accuracy of either DMO or prestack migration over that of conventional poststack mig14 KB (2,045 words) - 20:21, 21 January 2022
- Density information can improve the accuracy of a stratigraphic model for seismic analysis.5 KB (805 words) - 19:06, 27 January 2022
- ...easured at two depths. The accuracy of the computed density depends on the accuracy of both measured differences: gravity and depth. Operationally, BHGM survey10 KB (1,517 words) - 15:54, 20 January 2022
- | Focus on generalities and play concepts. Check all data for accuracy. The goal is to gain commitment of capital early in the exploration process5 KB (738 words) - 15:58, 2 February 2022
- ...ge three or four independent estimates derived from the same data set, the accuracy of the final estimate will nearly always be substantially improved. ==Accuracy levels in geotechnical predictions==21 KB (3,123 words) - 19:27, 19 January 2022
- ...chips, they estimated formation permeability from cuttings with surprising accuracy. Although Sneider and King<ref name=ch09r57 /> describe the method for esti6 KB (882 words) - 17:19, 6 April 2022
- ...s performed. It should match the IHP within 5 psi as a check of the tool's accuracy (assuming the packers did not leak).6 KB (997 words) - 17:55, 17 February 2022
- | Convenient to use || Enhanced accuracy results from measurement of pressure versus time instead of rate ...ariables by multiple measurements and statistical calculations. Typically, accuracy of measured permeabilities decline at low and high values and are usually w19 KB (2,716 words) - 19:02, 20 January 2022
- ...re control the geoscientist has in mapping the subsurface, the greater the accuracy of the maps. Control can be increased by the correlation of [[seismic data]8 KB (1,199 words) - 13:57, 24 January 2022
- Computers can measure depth and ROP with a high degree of accuracy and sensitivity. However, it must be remembered that virtually all methods7 KB (1,049 words) - 19:02, 20 January 2022
- ...ate paleobathymetry as far back as the middle Miocene (about 14.5 Ma). The accuracy of this method decreases with geologic age but is generally accepted to be7 KB (921 words) - 18:09, 24 January 2022
- ...ng whether it is 2, 5, or [[length::10 km]] thick, for example, to a usual accuracy of about ±15% under favorable conditions.8 KB (1,109 words) - 17:41, 24 January 2022
- ...en ratio along the line can be associated with a unique numerical age. The accuracy of the resulting age estimates approaches ±1.0 m.y for the [[Cenozoic]] in9 KB (1,282 words) - 20:59, 31 January 2022
- ...s only an approximate answer (typically within one or two porosity units). Accuracy decreases with increasing shale content and gas effects. ...g saturation in clean sands. It can be calibrated with cores for increased accuracy.25 KB (3,776 words) - 19:53, 18 January 2022
- ...determining ''x'', ''y'', and ''z'' coordinates generally provide adequate accuracy, given sufficient control. However, in remote or previously unsurveyed area10 KB (1,389 words) - 16:20, 20 January 2022
- ...tzgerald, D. D., B. F. McGhee, and J. A. McGuire, 1983, Guidelines for 90% accuracy in zone isolation decisions: Richardson, TX, Society of Petroleum Engineers12 KB (1,726 words) - 16:48, 20 January 2022
- The sponge-lined coring system was developed to improve the accuracy of core-based oil saturation data. This is very important information to ha13 KB (1,885 words) - 20:49, 19 January 2022
- ...thermal resolution, and the thermal range in which it can be applied with accuracy. Sensitivity studies demonstrate that reconstruction of the local paleoheat12 KB (1,616 words) - 17:35, 13 April 2022
- ...rs. Details of geological map depend on the its scale, and the density and accuracy of observations in the field. The final result from all [[geological method # The accuracy and precision of geological map is mainly based on the scale of the map tha29 KB (4,733 words) - 15:34, 15 January 2024
- ...fact that ''ground truth'' is normally assumed to be core measurement—the accuracy of which varies significantly depending on procedure and how well samples r14 KB (1,893 words) - 20:15, 2 February 2016
- The intervals can be defined in several ways depending on the accuracy and simplicity of calculation required. The ''tangential'' or ''terminal an17 KB (2,363 words) - 16:49, 20 January 2022
- The advent of 3-D seismic has increased the demand for accuracy in positioning. One needs to know within a few meters the position of the s13 KB (2,015 words) - 18:24, 21 January 2022
- ! Method || Application || Accuracy16 KB (2,550 words) - 17:47, 21 January 2022
- ...ected and those inside the error bars are accepted. If the estimate of the accuracy of the temperature data was less precise, the least squares approach might38 KB (5,890 words) - 15:16, 23 August 2016
- ...major diagenetic components represented on the vertical well profiles. The accuracy of and confidence in these correlations are governed by such factors as (1) Where [[economics]] dictate, it may be necessary to test the accuracy of the models developed. This can include testing by history matching of pr31 KB (4,171 words) - 18:22, 21 January 2022
- ...nature of the data set and outliers or anomalous data points to review for accuracy or measurement error and can indicate the spread or variability of the data16 KB (2,483 words) - 19:28, 19 January 2022
- ...; the decision must always depend on the interest of the experimenter, the accuracy and urgency of the required prediction, and the availability of other techn16 KB (2,083 words) - 21:28, 2 February 2022
- ...displacement accounts for the additional tool joint volume with sufficient accuracy. Using the data from the previous example, we obtain the following the disp21 KB (3,142 words) - 15:10, 24 January 2022
- ...grid overlain on the field or field segment being studied. In general, the accuracy of results from simulation studies is greater for smaller grid block sizes.19 KB (2,711 words) - 17:48, 21 January 2022
- ...mud weight and wellbore flushing, operation of the surface mud system, and accuracy of calculated lag time (see chapter on “Mudlogging: Gas Extraction and Mo18 KB (2,670 words) - 18:21, 21 January 2022
- ...[dipmeter]], and hydrocarbon distribution information that can improve the accuracy of predrill seismic and geological interpretations. Time pick corrections a20 KB (2,865 words) - 19:24, 19 January 2022
- ...World Oil, v. 200, n. 4, p. 83-90.</ref> The economic implications of the accuracy and credibility of the data obtained from these analyses can be significant20 KB (2,971 words) - 15:46, 19 January 2022
- ...correlation subsection. Knowledge of lithology significantly improves the accuracy of interpretation of all the porosity measurements.23 KB (3,350 words) - 17:26, 18 January 2022
- ...e downhole vibration on surface drilling parameters to avoid poor drilling accuracy, failures, and non-productive time from wear and tear in the drilling equip21 KB (3,096 words) - 20:59, 21 April 2022
- ...able to determine porosity. Sample type, pore types, time constraints, and accuracy requirements are generally used to determine the best analytical technique24 KB (3,450 words) - 19:09, 20 January 2022
- ...osteering was used to pilot the hole along the oil-water contact with full accuracy. Bed thicknesses differed from prognosed but precise monitoring of well tra20 KB (2,916 words) - 21:04, 21 April 2022
- ...he straight-line portion of the data to ''P''*. Use a data band within the accuracy of the gauge to make sure you choose the correct slope. In other words, if26 KB (4,009 words) - 15:09, 24 January 2022
- * Daneshy, A. A., 2004, On the accuracy of in-situ stress measurements by hydraulic fracturing, ''in'' Proceedings28 KB (4,031 words) - 15:49, 28 November 2022
- ...y<ref name=Ortz />. However, the median values need to be scrutinized with accuracy because reservoir properties and fluid types vary significantly both among77 KB (11,201 words) - 20:07, 15 January 2024