Explorer Article

A field that can be touted as an industry showpiece for what can be accomplished with the right technology in combo with the right commodity price sometimes attains its lofty status only after years of expensive trial and error -- and frustration -- on the part of the operators.

American Association of Petroleum Geologists (AAPG)
Explorer Director’s Corner

It’s that time of year again -- time for the annual convention, AAPG’s main event for the year!

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

In the under-appreciated “The Two Jakes,” a 1990 film in part about the burgeoning oil deposits in the Los Angeles Basin circa 1940, we hear the line: ' ... you might think you know what's going on around here, but ... you don't.'

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Call it a Russian miracle. Despite political, environmental and economic pressures, Russia’s Sakhalin oil and gas projects continue to advance.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Environmental concerns are a major factor in all U.S. exploration, but it is especially true in the West. That includes Wyoming’s Pinedale Field, a tight gas sand giant in the northwest part of the Greater Green River Basin.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Check out some of the major discoveries reported over the past year.

American Association of Petroleum Geologists (AAPG)
Explorer Article

A toast! A toast to Ida Glenn No. 1 ... one hundred years ago the Ida Glenn No. 1 came in and began Oklahoma's oil legacy.

American Association of Petroleum Geologists (AAPG)
Explorer Article

The basic rules for finding oil and gas were formulated so long ago that most of them have been forgotten. A review of these rules would be in order for many contemporary exploration managers.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Let's make a deal: Summer in Houston is about to get even hotter thanks to the Summer NAPE, a prospects and properties expo that carries the AAPG banner.

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

To optimize subsurface geophysical interpretations, it is beneficial to place seismic attributes into the proper regional geological context; knowledge of regional geology may assist exploration/exploitation efforts in advance by high-grading attribute selection and attribute intersection for purposes of risk analysis.

American Association of Petroleum Geologists (AAPG)
Short Course
Sunday, 25 September 2022, 8:30 a.m.–9:30 a.m.

Date: 25 September 2022 Time: 8:30am - 4:30pm Course Instructor: Alberto Ortiz, Net Zero Carbon Solutions Registration Fee: $530 Registration Deadline: 25 August 2022 Short Course registration is included as part of the GTW registration process. The petrophysical characterization of unconventional shale-type reservoirs has been one of the most approached and relevant issues in the oil and gas industry in the last 8 years. This is because after several years, the operating companies comprehended the impact that an appropriate characterization of the reservoir has on their project economics. Another reason for this were the technical obstacles encountered in the measurement of petrophysical properties such as porosity, saturation and permeability due to the complexity of this type of reservoir. Obstacles and limitations not only relate to laboratory measurements but also to electrical logging tools. As a consequence of this, nowadays, petrophysical evaluations in this type of reservoir do not have standardized workflows established and accepted worldwide as is the case for conventional reservoirs. This motivates the professionals involved in the study of this type of rocks to dedicate a lot of effort in the validation of the technologies used, and sometimes it is difficult for them to understand the results, the evaluation of uncertainties and the construction of petrophysical models with results and representative parameters of the subsurface conditions. This course will focus on providing key knowledge for a better characterization of the rock both in the aspects related to the matrix represented by mineralogy and kerogen as well as the fluids present. The approach will be based on the convergence of different technologies that support and give robustness to the results. The contents that will be provided will include laboratory testing techniques and petrophysical evaluation of electrical well logs for unconventional shale-type reservoirs. The contents provided will cover a variety of studies based on the most diverse physical principles that will include the latest advances and techniques used in the industry such as Nuclear Magnetic Resonance, Spectroscopy, Dielectric, Computed axial tomography and SEM images, among others. As a result of this, attendees will have tools that allow a more comprehensive understanding of this type of rocks, a better assessment of the uncertainty of the model used and the necessary steps to improve its precision, accelerating the learning curve. The contents provided will also allow knowing the critical parameters that must be taken into account for the definition of areas to be drilled. Course Topics Reservoir heterogeneity characterization from outcrops to lab data and electrical logging. Most relevant unconventional plays of the world. Main characteristics. The petrophysical model. Components and definitions, construction, uncertainties, strengths and weakness. Lab studies: porosity, saturation, mineralogy, organic geochemistry and permeability. Electrical logging response on unconventional shale plays: triple combo, NMR, NMR T1T2, nuclear spectroscopy, spectral GR, dielectric. The effect of maturity on kerogen. Challenges on water saturation calculation. Data integration. Interpretation workflows and core calibration.

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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)

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