Results 21 to 30 of about 76,494 (364)

Evaluation of fractures using conventional and FMI logs, and 3D seismic interpretation in continental tight sandstone reservoir

open access: yesOpen Geosciences, 2022
Due to the complex pore structures and strong heterogeneity of fractured reservoirs, it is a hot and difficult point in petroleum geology to identify fractures using logging principles.
Qiu Xiangliang   +3 more
doaj   +1 more source

Progress and development directions of shale oil reservoir stimulation technology of China National Petroleum Corporation

open access: yesPetroleum Exploration and Development, 2021
By reviewing the development history of shale oil reservoir stimulation technology of PetroChina Company Limited (PetroChina), we have systematically summarized the main progress of shale oil reservoir stimulation technology of CNPC in five aspects ...
Qun LEI   +8 more
doaj   +1 more source

Rupture by damage accumulation in rocks [PDF]

open access: yes, 2006
The deformation of rocks is associated with microcracks nucleation and propagation, i.e. damage. The accumulation of damage and its spatial localization lead to the creation of a macroscale discontinuity, so-called "fault" in geological terms, and to the
A Buchel   +64 more
core   +4 more sources

Numerical investigation of casing shear deformation due to fracture/fault slip during hydraulic fracturing

open access: yesEnergy Science & Engineering, 2020
The frequent occurrence of casing failure has significantly affected the development of shale gas in the Sichuan Basin. Based on engineering and geology analyses, natural fracture/fault slip leads to casing shear deformation during hydraulic fracturing ...
Hu Meng   +6 more
doaj   +1 more source

Fine Logging Evaluation of Fractures in Continental Tight Oil Sandstone Reservoirs of Yanchang Formation in the Ordos Basin

open access: yesFrontiers in Earth Science, 2022
Fractures are the main seepage channels in tight reservoirs, and they affect the distribution of high-quality reservoirs and the enrichment of hydrocarbons.
Zhanjun Chen   +3 more
doaj   +1 more source

Automatic and Manual Fracture-Lineament Identification on Digital Surface Models as Methods for Collecting Fracture Data on Outcrops: Case Study on Fractured Granite Outcrops, Bangka

open access: yesFrontiers in Earth Science, 2020
Three-dimensional outcrop models, or Digital Surface Models (DSMs), have proved their capacity in many geoscience studies. Along with the advantage in the rapid acquisition, DSMs are capable of creating virtual models of fractured outcrops to be ...
Muhammad Edo Marshal Nurshal   +8 more
doaj   +1 more source

Fracturing scheme design for unconventional reservoirs based on geology-engineering integration method

open access: yesIOP Conference Series: Earth and Environmental Science, 2022
Abstract Horizontal drilling and hydraulic fracturing can effectively increase the contact area between fractures and reservoir, which are important method to realize the economic and efficient development of unconventional reservoirs. In the traditional fracturing scheme design, “sweet spots” guide the fracturing construction.
Hang Su   +7 more
openaire   +1 more source

Fracture Characteristics of Mélange Complex Basement in Bantimala Area, South Sulawesi, Indonesia

open access: yesIndonesian Journal on Geoscience, 2017
DOI: 10.17014/ijog.4.3.121-141A detailed geological mapping and fracture characterization had been performed in Bantimala area, South Sulawesi, Indonesia.
Benyamin Sapiie   +3 more
doaj   +1 more source

Stress concentrations around voids in three dimensions : The roots of failure [PDF]

open access: yes, 2017
Funding This work forms part of a NERC New Investigator award for DH (NE/I001743/1), which is gratefully acknowledged. Acknowledgments The authors would like to acknowledge the reviewers, Elizabeth Ritz and Phillip Resor.
Bubeck, A.   +3 more
core   +1 more source

Deformation in Moffat Shale detachment zones in the western part of the Scottish Southern Uplands [PDF]

open access: yes, 2004
A study of the décollement zones in the Moffat Shale Group in the Ordovician Northern Belt of the Southern Uplands of Scotland reveals a progressive sequence of deformation and increased channelization of fluid flow.
Needham, D.T.
core   +1 more source

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