Lithology Crossplots: Applications in an Evaporite Basin—The Maverick Basin of Southwest Texas

John V. Crues, Jr.

South Texas Geological Society Special Publications

... the rock type and true porosity. Most geological correlations made in the past have relied on the spontaneous potential (SP) for formation...

Wetumpka Impact Structure, Alabama, and its Impact Ejecta

David T. King Jr., Lucille W. Petruny

GCAGS Transactions

... core show thin coarse siliciclastic intervals on both spontaneous potential (SP) and gamma ray logs, which were integrated into his Milankovitch...

Paleotectonic Controls on Deposition of the Niobrara Formation, Eagle Sandstone, and Equivalent Rocks (Upper Cretaceous), Montana and South Dakota: Part II. Northern Rocky Mountains

G. W. Shurr, D. D. Rice

AAPG Special Volumes

... on electric logs as units of high resistivity and large departures on the spontaneous potential (SP) log (Figure 8). Calcareous shale has lower resistivity...

Geophysical methods for detecting shallow sulphide mineralization in the Halifax Formation, Nova Scotia: a reconnaissance study

K. Howells, D. Fox

Atlantic Geology

..., spontaneous potential, and induced polari­ zation measurements. The conductivity meter selected was specific to “construction depths” (i.e., its...

Subsurface Geology of the Franks Graben, Pontotoc and Coal Counties, Oklahoma

Wallace Mann

Oklahoma City Geological Society

.... The Woodford formation has an average thickness of 120 feet and is easily identified on electric logs. It has a characteristically high resistivity and low...

NMR Time-Lapse Wettability Assessments in Unconventionals: Insights from Imbibition

S. Kelly, R. J. M. Bonnie, M. J. Dick, D. Veselinovic

Unconventional Resources Technology Conference (URTEC)

... between rock samples and varied states: 0.3 to 1 = water wet, -0.3 to 0.3 = mixed wet, and -0.3 to -1 = oil wet. Spontaneous imbibition was utilized...

Deltaic Deposits in the Pennsylvanian Upper Morrow Formation of the Anadarko Basin

Donald C. Swanson

Tulsa Geological Society

..., the spontaneous potential (SP) curve, which measures the shaliness of a formation, accurately reflects the overall textural change through point-bar...

LithoBot: An AutoML approach to identify lithofacies

Mayur Nawal, Santosh Kumar, Bharath Shekar

International Meeting for Applied Geoscience and Energy (IMAGE)

... for lithofacies identification include spontaneous potential (SP), caliper (CALI), density (RHOB), sonic (DT), porosity (NPHI) and photoelectric...

Origin and Geomorphology of Clinker in the Powder River Basin, Wyoming and Montana

Donald A. Coates, Edward L. Heffern

Wyoming Geological Association

... paralava. Coal bed fires are ignited primarily by range fires and spontaneous combustion on outcrops that are above water table. During regional lowering...

Monterey Formation porcelanite reservoirs of the Elk Hills field, Kern County, California

S. A. Reid, J. L. McIntyre

AAPG Bulletin

... a consistent log response (Figure 5). Gamma-ray response is low, and spontaneous potential (SP) is 30-55 mV from the clay baseline. Deep resistivity...

Unconformities and Porosity Development in Carbonate Strata: Ideas from a Hedberg Conference

A. H. Saller , D. A. Budd , P. M. Harris

AAPG Bulletin

... exposure for most time intervals of the geologic record. Wireline Logs Wireline logs (especially spontaneous potential, gamma ray, and resistivity) have...

Sedimentology, Palynostratigraphy, Palynofacies and Thermal Maturity of Upper Permian Rocks of Kolguyev Island, Barents Sea, Russia

M. Grigoriev, J. Utting

CSPG Bulletin

... used included logs (spontaneous potential, gamma ray, resistivity, micrologs, sonic) core and cuttings descriptions, lithological and petrographical...

Full Field EOR Implementation of A Low Cost Surfactant Continuous Injection at Arahan-Banjarsari, South Sumatra

Tutuka Ariadji, Wisnu Nugroho, Nanang A. Manaf, Mulyoadi, Andang Kustamsi, Ari Suzalin

Indonesian Petroleum Association

... included phase behavior, mixture viscosity measurement, spontaneous imbibition, and static isotherm adsorption tests. Several surfactant formulas had...

Flushing of Cretaceous Reservoirs in the North Ucayali Basin, Perú

Oscar López-Gamundí, Fabrice Roullet

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... of water supply to maintain fluid potential (Hubbert, 1953; Ostroff, 1975; Burley, 1993). Deep, low-salinity waters may be due to the invasion...

RESERVOIR GEOLOGY OF THE TIGER RIDGE AREA

FRED SCHORNING

Montana Geological Society

... and spontaneous potential curves were also included to eliminate shaly or limy sections. The top and base of each of the individual zones were also...

Spellacy Reservoir Sandstones, Midway-Sunset Field

David H. Sturm

Pacific Section of AAPG

... of terrigenous to biogenic material was low. SP (self/spontaneous-potential), gamma ray, conductivity, and porosity curves are useful for correlation...

Natural fractures in tight-oil sandstones: A case study of the Upper Triassic Yanchang Formation in the southwestern Ordos Basin, China

Wenya Lyu, Lianbo Zeng, Sibin Zhou, Xiaosheng Du, Dongling Xia, Guoping Liu, Jian Li, and Jianqiao Weng

AAPG Bulletin

... al., 2008; Zhang et al., 2015). The lithology, fossil assemblages, apparent resistivity, gamma ray, and spontaneous potential log curves permit...

Laboratory Study: Analysis of the Effect of Carbonate in Carbonate-Cemented Sandstone to Oil Recovery with Spontaneous Imbibition Test Using Surfactant

Ikhwanul Wadudi, Aris Wakhyudin, Miftah Hidayat, Iqbal Fauzi, Taufan Marhaendrajana, Leksono Mucharam

Indonesian Petroleum Association

... and the effect of surfactant for improving brine wettability. Spontaneous imbibition test using formation water and surfactant were employed to determine...

La Pan Field — Clay County, Texas: A Field Study

Rita J. Ehlmann

Dallas Geological Society

... prepared for each zone showing the net feet of porosity relative to the net feet of zone development indicated by the spontaneous potential curve. Wells...

JUDITH RIVER FORMATION IN EASTERN MONTANA—INNER SHELF SAND RIDGES AND PALEOTECTONISM

George W. Shurr, Frederick D. Wosick, Lawrence M. Monson, John R. Fanshawe

Montana Geological Society

... in resistivity and spontaneous potential (well 4, Figure 4) which is interpreted as an upward increase in grain size and increased sorting...

The Neuquén Super Basin

Ricardo D. Veiga, Gustavo D. Vergani, Ignacio E. Brissón, Carlos E. Macellari, and Héctor A. Leanza

AAPG Bulletin

... log; ILD = induction log deep; RHOB = density log; SN = short normal resistivity log; SP = spontaneous potential log...

Permian Oil Fields of North Texas

John Rex Wayland

North Texas Geological Society

... the spontaneous potential and the resistivities observed on the electrical surveys of the wells. This condition is undoubtedly a result...

2011 AAPG Eastern Section Meeting, Washington, DC, USA, 25-27 September 2011., - Abstracts, #90131 (2011).

Search and Discovery.com

Accelerate Well Correlation with Deep Learning; #42429 (2019)

Bo Zhang, Yuming Liu, Xinmao Zhou, Zhaohui Xu

Search and Discovery.com

... panels in Figure 2 show spontaneous potential (SP), micro gradient (RMG), and micro potential (RMN) logs, respectively. The fourth panel in Figure 2...

Chapter 13: Application of Stratigraphic Grade Concepts to Understand Basin-fill Processes and Deposits in an Active Margin Setting, Magdalena Submarine Fan and Associated Fold-and-Thrust Belts, Offshore Colombia

Andrea F. Cadena, Gloria Romero, Roger Slatt

AAPG Special Volumes

... on the upper shelf (shallow marine) close to the shore line. Logs include resistivity, gamma ray, spontaneous potential, neutron porosity, and density and one...