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Journal Articles
Petrophysics 22 (03).
Paper Number: SPWLA-1981-vXXIIn3a3
Published: 01 May 1981
...John A. Adams; Joseph John; Erik A. Opstad; Nicholas Vegelatos IRT Corporation of San Diego, California, has been providing a delayed-neutron borehole logging (DNL)service to the uranium mining industry on a commercial basis since October 1979. The IRT DNL system provides a complete and direct...
Proceedings Papers

Paper presented at the SPWLA 21st Annual Logging Symposium, July 8–11, 1980
Paper Number: SPWLA-1980-I
... the principles and operation of a 252 Cf based borehole logging system for in situ assaying of uranium. The principle of measurement is delayed neutron activation analysis (DNAA); hence the system has been called the delayed neutron logging (DNL) system. Measurement of uranium in place by inducing fission...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2009
Paper Number: OTC-20287-MS
... Three major local companies handled the in-country fabrication of some key components of the Agbami Project. Daewoo Nigeria Limited (DNL), Warri, based in Warri, Delta State, fabricated two topsides modules and the flare boom; Nigerdock Nigeria Plc, Lagos, fabricated two topsides modules, the FPSO...
Journal Articles
Petrophysics 21 (04).
Paper Number: SPWLA-1980-vXXIn4a3
Published: 01 July 1980
... Product 1 ~ 1 % . I t ) Rat io 10 Chemical IJnrampenreted C o m p n r a t e d IJncompenraled Compensated Hole Ch~rnicdl DNL DNL DNL DNL A 1 0.1668 A 2 0.1512 A 3 0.9300 A I T 0.3120 A I R 0.3296 A6T 0.2712 AbR 0.2800 Ill 10.09 112 I.001 1 1 3 1.938 n 1.1 0.1312 M 2 0 4 . 1 1.281 0.1910 0. 1298 1.078 O . I...
Proceedings Papers

Paper presented at the SPE Eastern Regional Meeting, October 22–25, 1991
Paper Number: SPE-23427-MS
... and thermal neutron absorption effects. The introduction of the dual-detector epithermal mea- surement in the Dual-Energy Neutron Log (DNL*) pro- vided the means to improve formation evaluation capa- bilities in air-filled boreholes. The tool and a detector counting rate processing technique for liquid-filled...
Journal Articles
Int. J. Offshore Polar Eng. 13 (01).
Paper Number: ISOPE-03-13-1-004
Published: 01 March 2003
... Jn kb2 +Cn0 Yn kr Yn kb2 } cosh kz + l=1 { Dnl Kn klr Kn klb2 +Enl In klr In klb2 } cosklz ] cosn (11) in which Bn0 Cn0 Dnl and Enl are unknown coefficients, Jn x and Yn x are the Bessel functions of the first and second kinds of order n, respectively, and k and kl are the wave numbers...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-236
...-Miner law; variable amplitude; T-welded joint NOMENCLATURE al = horizontal leg on left side ar = horizontal leg on right side bl = vertical leg on left side br = vertical leg on right side Dnl = the damage value of load interaction Fm = mean load of cyclic load Fa = amplitude load of cyclic load hs...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–6, 1999
Paper Number: SPE-56749-MS
... to give representative behavior to the model and to keep computer processing time for simulation at a reasonable level. Figure 8 (EoS#1 Comparison S3: Sliq CVD), Figure 9(EoS#1 Comparison S20: RelVol-DL), Figure 10 (EoS#1 Comparison S20B: DNL-CCE), and Figure 11 (EoS#1 Comparison S12: FSGOR-DL) show...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference and Exhibition, October 24–26, 2016
Paper Number: SPE-182122-MS
... of the formation. The survey of well Dnl-73 in the section 1665-1686 m. was performed in July 2013 during well testing period, as well as in January 2015 and February 2015 when performing a program of research efforts within the framework of well production testing. The main objective of the second survey...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, November 2–6, 2020
Paper Number: OTC-30244-MS
... to electrify new offshore oil and gas platforms by electric cables from shore. It makes sense to consider electrifying the oil and gas platforms by connecting it to one or more nearby offshore wind turbines. In 2015 DNL GL launched a joint industry project to study the feasibility of offshore water injection...
Journal Articles
J Pet Technol 19 (06): 829–838.
Paper Number: SPE-1546-PA
Published: 01 June 1967
...] - 0.709 - 0.162 log Vt - 0.888 log dh (C-12) r = [0.0127 log (fLL +1)/dnl.415] - 0.284 + 0.167 log V t + 0.113 log dn (C-13) r = [0.0274 log (fLL + l)/dnl.371] + 0.161 + 0.569 log dn - log Vt {[O.Ollog (fLL + 1)/dn1.571] + 0.397 + 0.63 log dn} , (C-14) but .is constrained...
Proceedings Papers

Paper presented at the The First ISOPE Pacific/Asia Offshore Mechanics Symposium, June 24–28, 1990
Paper Number: ISOPE-P-90-115
... of the crack closure. In the case of SOX O.L . there are retardation phenomena even though there is almost no crack closure. In figure 6(b). for 6 Kb8MPaii'. the retardation appears when 64:S 0.5 but the crack closure is almost not noticeable. 2xl03 , 0 , -{do /dNl. - t.K I 0 103 101 , - .. I I I_I (da/dNl...
Proceedings Papers

Paper presented at the ISRM Progressive Rock Failure Conference, June 5–9, 2017
Paper Number: ISRM-PRF-2017-026
... Engineering. 49, 4957-4964. Dang, W, Konietzky, H, Frühwirt, T. 2016a. Direct shear behavior of a plane joint under dynamic normal load (DNL) con- ditions. Engineering Geology. 213, 133-141. Dang, W, Koniettky, H, Frühwirt, T. 2016b. Rotation and stress changes on a plane joint during direct shear tests. Int...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-220
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2013
Paper Number: IPTC-16582-MS
... by 221 2 fluidf tube tube f vD Lfpp .. (17) we recast Equation (14) into 2 2 8981.0 Re 1098.1 Re 2 Re 2 Re 21 149.7 8257.2 log0452.5 7065.3 log8 111621162 fluidf tube fluidf tube fluidf tubetube v D NN v DN v DNL pp or 6 IPTC 16582 2 Re 2 8981.0 Re...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–24, 2008
Paper Number: SPE-116015-MS
... Format File Extension Supported by the following device: Hanlin Ebook V3 Sony PRS-505 Irex Iliad ER-0100 Amazon Kindle D00111 STAReBOOK STK-101 Bookeen Cybook Gen3 Astak Mentor / Lifebook Eb300 Apabi .xeb, .ceb Arghos Diffusion .arg CHM Format chm x x Desktop Author .dnl DjVu .djvu x DNL Reader .dnl...
Journal Articles
SPE J. 9 (02): 183–188.
Paper Number: SPE-2405-PA
Published: 01 June 1969
...,Dnl has a value of unity, K1 = p and Eq. 5 is essential y the Poi seuille equation for Isminar flow. Eq. 5, however, is not rigorously valid outside the Isminar region. The correlation of non-Newtoninn turbulent flow described by Bowen18 has the advantage that no knowledge of the flow properties...
Journal Articles
SPE J. 25 (02): 235–254.
Paper Number: SPE-10268-PA
Published: 01 April 1985
...~1 dn"" (7) dx dx dn l dx dn l and, from Eq. 4, it follows that ( dn 1 )2 = 2~/fl(n) .. (8) dx vv dndn ~~C"'t3t3 '" 13 dnl dnl This can be used to eliminate the spatial variable and ob- tain (p - I) equations in the independent variable n 1 . If c ",13 is assumed independent of composition, an assumf...
Proceedings Papers

Paper presented at the Offshore Technology Conference Brasil, October 29–31, 2019
Paper Number: OTC-29865-MS
..., and the corresponding fatigue damages DL and DNL are then computed using the same S-N curves as before. The coefficients are then computed as: where: DL(HS,TP linear damage on a given sea state DNL(HS,TP nonlinear damage on a given sea state The ratios are then interpolated between all calculated sea states to compute...
Proceedings Papers

Paper presented at the SPE Western Regional Meeting, May 22–24, 1996
Paper Number: SPE-35745-MS
... as easily. Thcrefm-c, overbalance forcxx the dnl iing mud deeper into the formation The productmn dra~vdown pressure to rcvcrsc tlo~r and remove the damage ]s no[ sufficient and the zone remains partially plugged. To analyze the drilling mud mvasuon, the m]tlal production of each well was plotted against...

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