Explorer Emphasis Article

State-of-the-art seismic acquisition, processing and interpretation techniques continue to be keys that unlock the treasure for Forest Oil in South Africa.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

State-of-the-art 3-D seismic technology led to a major gas discovery — and perhaps much more — in South Africa.

American Association of Petroleum Geologists (AAPG)
Explorer Article

They're young, they're old, male and female, company men and independent strivers. What, then, makes these varied people successful oil finders?

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

A global assessment of undiscovered conventional oil and gas resources has led to some surprising geologic insights regarding petroleum systems.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Companies eyeing exploration in the National Petroleum Reserve-Alaska see prospects there as good to great, despite a scarcity of previous drilling there.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Coming soon: A new USGS resource assessment of the National Petroleum Reserve-Alaska, an area that may hold the key to Alaska's exploration future.

American Association of Petroleum Geologists (AAPG)
Explorer Article

4-D seismic proves its value in the harsh but prolific West of Shetlands ground.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Economics and risk: Borehole imaging using microresistivity images have become important, efficient, cost-effective tools

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

This month's column is titled 'Rejuvenation of a Mature Field Through Application of a Unique Frequency Enhancement Technology.'

American Association of Petroleum Geologists (AAPG)
Explorer Article

How do you communicate data to all members of multidisciplinary teams in a way they'll understand? One solution: A new processing technique that is based on seismic petrophysics.

American Association of Petroleum Geologists (AAPG)
Workshop
Naples, Italy
Wednesday, 22 June Thursday, 23 June 2022, 8:00 a.m.–5:00 p.m.

Modelling carbonate sequences and reservoirs has always been a challenging task. Carbonate rocks are generated and subsequently modified by a large variety of biological, physical and chemical processes that start at the time of deposition and end today. To unravel the geological evolution and history of carbonate sequences is fundamental not only for understanding their hydrocarbons potential but also for their role as potential reservoirs for renewable energy (geothermal) or geological gas storage (CO2 and hydrogen). Several science disciplines are often involved to fully understand the characteristics of carbonate rocks and old approaches and new technologies and tools are nowadays applied in these types of sequences. The objective of this meeting is to allow scientists and engineers working on carbonate rocks in academia and industry to share their most recent experience, work, approaches and use of innovative technologies to increase the understanding of the very complex world of carbonates.

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American Association of Petroleum Geologists (AAPG)
VG Abstract

In 1991, Gulf Indonesia and its partners discovered South Sumatra Basin’s first major gas field at Dayung in the Corridor PSC. A key feature of this field is that most of the reserves are held within fractured basement rocks of pre-Tertiary age. 

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American Association of Petroleum Geologists (AAPG)
VG Abstract

Production from unconventional petroleum reservoirs includes petroleum from shale, coal, tight-sand and oil-sand. These reservoirs contain enormous quantities of oil and natural gas but pose a technology challenge to both geoscientists and engineers to produce economically on a commercial scale. These reservoirs store large volumes and are widely distributed at different stratigraphic levels and basin types, offering long-term potential for energy supply. Most of these reservoirs are low permeability and porosity that need enhancement with hydraulic fracture stimulation to maximize fluid drainage. Production from these reservoirs is increasing with continued advancement in geological characterization techniques and technology for well drilling, logging, and completion with drainage enhancement. Currently, Australia, Argentina, Canada, Egypt, USA, and Venezuela are producing natural gas from low permeability reservoirs: tight-sand, shale, and coal (CBM). Canada, Russia, USA, and Venezuela are producing heavy oil from oilsand. USA is leading the development of techniques for exploring, and technology for exploiting unconventional gas resources, which can help to develop potential gas-bearing shales of Thailand. The main focus is on source-reservoir-seal shale petroleum plays. In these tight rocks petroleum resides in the micro-pores as well as adsorbed on and in the organics. Shale has very low matrix permeability (nano-darcies) and has highly layered formations with differences in vertical and horizontal properties, vertically non-homogeneous and horizontally anisotropic with complicate natural fractures. Understanding the rocks is critical in selecting fluid drainage enhancement mechanisms; rock properties such as where shale is clay or silica rich, clay types and maturation , kerogen type and maturation, permeability, porosity, and saturation. Most of these plays require horizontal development with large numbers of wells that require an understanding of formation structure, setting and reservoir character and its lateral extension. The quality of shale-gas resources depend on thickness of net pay (>100 m), adequate porosity (>2%), high reservoir pressure (ideally overpressure), high thermal maturity (>1.5% Ro), high organic richness (>2% TOC), low in clay (<50%), high in brittle minerals (quartz, carbonates, feldspars), and favourable in-situ stress. During the past decade, unconventional shale and tight-sand gas plays have become an important supply of natural gas in the US, and now in shale oil as well. As a consequence, interest to assess and explore these plays is rapidly spreading worldwide. The high production potential of shale petroleum resources has contributed to a comparably favourable outlook for increased future petroleum supplies globally. Application of 2D and 3D seismic for defining reservoirs and micro seismic for monitoring fracturing, measuring rock properties downhole (borehole imaging) and in laboratory (mineralogy, porosity, permeability), horizontal drilling (downhole GPS), and hydraulic fracture stimulation (cross-linked gel, slick-water, nitrogen or nitrogen foam) is key in improving production from these huge resources with low productivity factors.

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Request a visit from Ameed Ghori!

American Association of Petroleum Geologists (AAPG)

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