You are here
Home > BLOG > Shale Formations

Pore Structure Characterization and the Controlling Factors of the Bakken Formation

Figure 1. Location of the Williston Basin and study area.

The Bakken Formation develops micropores, mesopores, and macropores. However, the Upper and Lower Bakken shale are dominated by micropores, while the Middle Bakken tight reservoir is dominated by mesopores. The total pore volume and specific surface area of the Middle Bakken are significantly higher than those of the Upper and

Quantitative prediction of shale gas sweet spots based on seismic data in Lower Silurian Longmaxi Formation, Weiyuan area, Sichuan Basin, SW China

Fig. 1. Location of the study area.

Second, data volumes with high precision of the elastic parameters were obtained from pre-stack simultaneous inversion. The horizontal distribution of key parameters for shale gas evaluation were calculated based on the results of rock physics analysis. Then, the fuzzy evaluation equation was established by fuzzy optimization method with test and

The effect of interbedding on shale reservoir properties Kimmeridge Clay Formation

Figure 1. Structural elements of the North Sea showing the framework of the Viking Graben (modified from Dominguez, 2007) with inset of UK Quadrant 16 showing the location of wells studied (modified from DECC, 2013).

Abstract North Sea oil is overwhelmingly generated in shales of the Upper Jurassic – basal Cretaceous Kimmeridge Clay Formation. Once generated, the oil is expelled and ultimately migrates to accumulate in sandstone or carbonate reservoirs. The source rock shales, however, still contain the portion of the oil that was not expelled.

Microstructures of Early Jurassic (Toarcian) shales of Northern Europe

Microstructures of Early Jurassic (Toarcian) shales of Northern Europe

Abstract The Toarcian (Early Jurassic) Posidonia Shale Formation is a possible unconventional gas source in Northern Europe and occurs within the ClevelandBasin (United Kingdom), the Anglo-Paris Basin (France), the Lower Saxony Basinand the Southwest Germany Basin (Germany), and the Roer Valley Graben, the West Netherlands Basin, Broad Fourteens Basin, the Central

Pore evolution characteristic of shale in the Longmaxi Formation, Sichuan Basin

Fig. 1. Structural characteristics of Sichuan Basin and sampling locations (modified from Liu et al. (2016)).

Through study on effect of total organic carbon (TOC), organic matter maturity (Ro), diagenesis and tectonism on shale porosity, influence of TOC on porosity could be divided into four stages: the rapid increasing stage (TOC from 0 to 2%), the slow decreasing stage (TOC from 2 to 3%), the rapid

Micron-to nano-pore characteristics in the shale of Longmaxi Formation, southeast Sichuan Basin

Fig. 2. Distribution and morphological characteristics of organic pores. (a) Abundant organic pores occurred in the band shape and were developed in irregular organic matter which was filled among mineral particles, the sample was from Well YC4 at the depth of 749.2 m;

BET specific surface area of the shale in Longmaxi Formation ranged from 3.5 to 18.1 m2/g, BJH total pore volume was from 0.00234 to 0.01338 cm3/g, DA specific surface area of micropores vaired from 1.3 to 7.3 m2/g, and DA pore volume ranged from 0.00052 to 0.00273 cm3/g. The specific

Brittleness modeling of Cambay shale formation for shale gas exploration: a study from Ankleshwar area, Cambay Basin, India

Fig. 11 P-impedance volume cross section along well #2 and well #3 in study area

The geomechanical study of a shale gas reservoir is useful in identifying the intervals which can be fractured effectively. The estimation of geomechanical properties from well logs and their calibration with laboratory-derived properties on cores has been attempted in the present paper for Cambay shale of Cambay Basin, India, which

Hydrocarbon generation potential of shales in Hekimhan basin Eastern Anatolia Region, Turkey

Fig. 3 Stratigraphic columnar sections of the Hekimhan Formation (modified from Gürer 1992) and sampled measured sections (locations 1 and 2).

Hydrocarbon generation potential of late cretaceous shales and carbonates in Hekimhan basin and genetic relationships with Karadere oil seep (Eastern Anatolia Region, Turkey) On the basis of average Tmax (433 °C) and 0.53% R0 values, the investigated samples are at the immature and early mature level for hydrocarbon generation. According to

Evaluation and Analysis of Oil Shale in Quseir-Safaga and Abu-Tartur Western Desert, Egypt

Figure 2. Oil Shale at different places in Egypt such as in the Quseir Area-Safaga of the Eastern Desert, Abu-Zinema of the west Sinai and Abu-Tartur of the western desert.

The experiments were done using AUC lab retort to experimentally determine the critical temperature that will lead to the maximum production using sudden and gradual change in temperatures, which turned out to be sudden change at 500˚C. Thereafter, the degree of API gravity was calculated for each run. Then the

Montney Formation Evaluation, Northeastern British Columbia Canada, Part B

Figure 1. Location map of study area showing wells (red color) that penetrated Montney Formation in northeastern British Columbia and Alberta, Canada.

Petroleum Source-Rock Evaluation and Hydrocarbon Potential in Montney Formation Unconventional Reservoir, Northeastern British Columbia, Canada (PART B)   Based on the vitrinite reflectance data from Montney Formation in the study area, the results indicate that vitrinite reflectance (Ro) range from 0.74% - 2.09%, which is interpreted herein as primarily a gas prone

Montney Formation Evaluation, Northeastern British Columbia Canada

Figure 22. Isopach map of the Montney Formation showing gross thickness in the study area, northeastern British Columbia [24].

Petroleum Source-Rock Evaluation and Hydrocarbon Potential in Montney Formation Unconventional Reservoir, Northeastern British Columbia, Canada Analyses of Rock-Eval parameters (TOC, S2, Tmax, HI, OI and PI) obtained from 81 samples in 11 wells that penetrated the Montney Formation in the subsurface of northeastern British Columbia were used to map source rock

Shale Gas Characterization of Sembar Formation, Khipro Area, Pakistan

Figure 1. Geographic location of study area (Banks and Warburton, 1986).

1. Introduction The study area, Khipro Block is tectonically situated in Southern Indus Basin and geographically in the Sanghar district Sindh province of Pakistan. Southern Indus Basin is very important for hydrocarbon exploration because it is the main producing oil and gas basin of Pakistan. Khipro is located in the Thar

Production Decline Curves of Tight Oil Wells in Eagle Ford Shale

This study derives typical production curves of tight oil wells based on monthly production data from multiple horizontal Eagle Ford shale oil wells.

  Abstract This study derives typical production curves of tight oil wells based on monthly production data from multiple horizontal Eagle Ford shale oil wells. Well properties initial production (IP) rate and production decline rate were documented, and estimated ultimate recovery (EUR) was calculated using two empirical production decline curve models, the

Eagle Ford Shale Part A: Geological Review

Taken from http://earthly-musings.blogspot.com.es/2013/01/a-trip-to-booming-eagle-ford-shale-oil.html

Railroad Commission of Texas qualified the Eagle Ford  Play as the best shale play in the United States due to its relatively shallow depths in the oil window, high percentage of carbonate makes it easier to fracture, and  large lateral extent and thickness (Railroad Commission of Texas, 2011). The first unconventional

Barnett Shale Technical Information

Barnett Shale Play technical information

BARNETT TECHNICAL INFORMATION Emanuel Martin INTRODUCTION Barnett Field in Texas is the pioneer in the shale gas production in United States. Since 1980 the Mitchell Energy Company began with pilot proofs for the production of gas and years later in 2003 by combining the horizontal wells with multiple fractures they achieve his extraction

Top