Coming Soon!
Recent Posts
No posts yet.
9046
 

From AAPG Wiki

8473
 
Explorer Article

Shale formations can confound even the savviest geoscientist when it comes to determining the inner workings of the rock. After expert evaluation, even the most attractive prospecting deal can be a tough sell. And there’s almost always a new piece to each of these puzzles that requires some sophisticated high-tech explaining.

8045
 
Explorer Article

Oklahoma! As-yet unlocked SCOOP and STACK plays have plen’y of room for maturation and development.

7963
 
Organic-carbon–rich shales of the lower Marcellus Formation were deposited at the toe and basinward of a prograding clinothem associated with a Mahantango Formation delta complex centered near Harrisburg, Pennsylvania. Distribution of these organic-carbon–rich shales was influenced by shifts in the delta complex driven by changes in rates of accommodation creation and by a topographically high carbonate bank that formed along the Findlay-Algonquin arch during deposition of the Onondaga Formation. Specifically, we interpret the Union Springs member (Shamokin Member of the Marcellus Formation) and the Onondaga Formation as comprising a single third-order depositional sequence. The Onondaga Formation was deposited in the lowstand to transgressive systems tract, and the Union Springs member was deposited in the transgressive, highstand, and falling-stage systems tract. The regional extent of parasequences, systems tracts, and the interpreted depositional sequence suggest that base-level fluctuations were primarily caused by allogenic forcing—eustasy, climate, or regional thermal uplift or subsidence—instead of basement fault reactivation as argued by previous workers. Paleowater depths in the region of Marcellus Formation black mudrock accumulation were at least 330 ft (100 m) as estimated by differences in strata thickness between the northwestern carbonate bank and basinal facies to the southeast. Geochemical analysis indicates anoxic to euxinic bottom-water conditions. These conditions were supported by a deep, stratified basin with a lack of circulation.
5774
 

Sandstone pressures follow the hydrostatic gradient in Miocene strata of the Mad Dog field, deep-water Gulf of Mexico, whereas pore pressures in the adjacent mudstones track a trend from well to well that can be approximated by the total vertical stress gradient. The sandstone pressures within these strata are everywhere less than the bounding mudstone pore pressures, and the difference between them is proportional to the total vertical stress. The mudstone pressure is predicted from its porosity with an exponential porosity-versus-vertical effective stress relationship, where porosity is interpreted from wireline velocity. Sonic velocities in mudstones bounding the regional sandstones fall within a narrow range throughout the field from which we interpret their vertical effective stresses can be approximated as constant. We show how to predict sandstone and mudstone pore pressure in any offset well at Mad Dog given knowledge of the local total vertical stress. At Mad Dog, the approach is complicated by the extraordinary lateral changes in total vertical stress that are caused by changing bathymetry and the presence or absence of salt. A similar approach can be used in other subsalt fields. We suggest that pore pressures within mudstones can be systematically different from those of the nearby sandstones, and that this difference can be predicted. Well programs must ensure that the borehole pressure is not too low, which results in borehole closure in the mudstone intervals, and not too high, which can result in lost circulation to the reservoir intervals.

2692
 
Explorer Historical Highlight

The presence of natural gas in Kansas was known in pre-territorial time, as it was escaping from “oil springs” in Miami County in the region’s northeast part – there is some evidence that it was collected and used by local American Indians before any easterners settled in what would become the Sunflower State.

2681
 
Explorer Emphasis Article

Quartet made its debut in the industry this year. The reviews are in and it looks like the value brought to the field is proving it to be innovative and time-saving.

2680
 
Explorer Emphasis Article

The high-cost of drilling environments has been addressed by a new technology using wireless telemetry to feed real-time data back to the surface. Here's one review.

2679
 
Explorer Emphasis Article

Geosteering takes advantage of subsurface data being interpreted in real time in order to enable steering decisions during the process. The object if identifying target versus non-target stratigraphic horizons. Learn more about advancements made in this area.

1762
 
Explorer Emphasis Article

It’s now been shown that the “sweet” aspect of an identified sweet spot can change – not only stratigraphically, but also laterally within the zone itself.

«« First |1 2 3 4 5 6 ... 12 13 14 15 16 17 18 | Last ››
In-Person Training
Oklahoma City Oklahoma United States 25 September, 2014 25 September, 2014 10190
 
Oklahoma City, Oklahoma, United States
25 September 2014

This forum is an intensive one-day review by experts of the latest findings regarding the productive extent and producibility in the Granite Wash of Oklahoma and Texas, along with Pennsylvanian sand-producing horizons.

Golden Colorado United States 17 November, 2014 19 November, 2014 10243
 
Golden, Colorado, United States
17-19 November 2014

Participants will learn how to be successful in utilizing the Three Forks in a stacked-pay, pad-drilling strategy when producing various Bakken members.

14 February, 3000 14 February, 3000 7813
 
14 February, 3000 14 February, 3000 7816
 
14 February, 3000 14 February, 3000 7812
 
14 February, 3000 14 February, 3000 7815
 
Online Training
02 October, 2014 02 October, 2014 10593
 
2 October 2014
This course is ideal for individuals involved in Midland Basin exploration and development. Successful development of Wolfcamp shale oil relies on complex inter-relationships (ultimately interdependencies) within and between a wide variety of scientific disciplines, financial entities, and company partnerships. 
15 March, 2012 15 March, 2012 1484
 
15 March 2012

This e-symposium presents techniques for predicting pore pressure in seals by examining case studies from the Gulf of Mexico and incorporating the relationship between rocks, fluids, stress, and pressure.

12 July, 2012 12 July, 2012 1490
 
12 July 2012

This presentation will look at well placement vertically in the pay, well azimuth and well trajectory with explanations of how geology and post-depositional effects can make the difference between a successful well and a failure.

20 January, 2012 20 January, 2012 1482
 
20 January 2012

The Eagle Ford Shale in South Texas is one of the more exciting shale plays in the United States at the current time.

16 April, 2013 16 April, 2013 1496
 
16 April 2013

The goal of this e-symposium is to provide an overview of the latest trends and technologies for water management for oil and gas drilling, completions, and production.

07 June, 2012 07 June, 2012 1488
 
7 June 2012

Unger Field, discovered in1955, has produced 8.6 million barrels of oil from a thinly (several ft) bedded, locally cherty dolomite containing vuggy and intercrystalline porosity.

26 September, 2013 26 September, 2013 1497
 
26 September 2013

The presentation will discuss key reservoir information and how to develop a predictive pressure model.

28 July, 2011 28 July, 2011 1476
 
28 July 2011

This presentation discusses one operator’s approach to fully integrate data captured in the Marcellus Shale in order to optimize horizontal well performance.

28 April, 2011 28 April, 2011 1471
 
28 April 2011

The Niobrara Petroleum System of the U.S. Rocky Mountain Region is a major tight petroleum resource play.

09 December, 2010 09 December, 2010 1466
 
9 December 2010

The Mississippian-Devonian Bakken Petroleum System of the Williston Basin is characterized by low-porosity and permeability reservoirs, organic-rich source rocks, and regional hydrocarbon charge.

21 October, 2010 21 October, 2010 1464
 
21 October 2010

This e-symposium covers how to conduct an interdisciplinary evaluation of mature fields to determine the best approach to recover remaining reserves.

22 July, 2010 22 July, 2010 1461
 
22 July 2010

Upon successful completion of this course, you will be able to describe geomechanics in shale reservoirs and discuss differences between plays.

28 January, 2010 28 January, 2010 1455
 
28 January 2010

This 1-hour web-cast will arm the G&G asset team professionals with a core-competency understanding of these critical field realities, with direct reference to recent documented field experience and learnings

27 March, 2009 27 March, 2009 1435
 
27 March 2009

Join two GIS/geoscience experts Scott Sires and Gerry Bartz as they use information from the Teapot Dome Field in Wyoming (DOE/RMOTC program).

01 January, 2013 01 January, 9999 1473
 
1 January 2013 - 1 January 9999

Unconventional Resources is an online course that enables participants to learn about shale gas, shale oil and coalbed methane.

01 January, 2013 01 January, 9999 1472
 
1 January 2013 - 1 January 9999

This course introduces the learner to the fundamentals of shale gas, including current theories that explain its origin, and how to determine which reservoirs are commercially viable.

01 January, 2013 01 January, 9999 1448
 
1 January 2013 - 1 January 9999

Solar Energy Basics is an online course that enables participants to review, analyze, and evaluate opportunities in the rapidly expanding market for solar energy.

01 November, 2013 01 November, 9999 452
 
1 November 2013 - 1 November 9999

This online course provides an overview of the petroleum industry from what is natural gas and crude oil to how to explore, drill, and produce oil and gas.

14 February, 3000 14 February, 3000 7817
 
Coming Soon

Check back often. "Find an Expert" feature is coming online soon!