The Shale Revolution and the Great Crew Change
http://www.rigzone.com/news/oil_gas/a/151302/The_Shale_Revolution_and_the_Great_Crew_ChangeAugust 07, 2017
We have heard about the "Great Crew Change" ad nauseum for the past four or five years as the Baby Boomers (count me in that camp) reach retirement age and depart for greener pastures—sitting on a rocker, traveling the world or playing with the grandkids. And they will leave a void when they're gone, it just won't show up for a few years. The Shale Revolution will mask its impact for now, maybe for another generation.
Let's see what skills are required of a geoscientist (and I'm sorry, I'm prejudiced about the importance of geoscientists and where they fit into this work flow) in a "shale" play. They are asked to identify the "sweet spots" of a play area using whatever tools are most appropriate—3D seismic attribute analysis, surface geochem, petrophysical analysis (to determine OOIP), lineament analysis and so forth—then put a horizontal well bore in the most favorable horizon the target formation pointed in the best direction that spacing requirements allow. Then they consult with the completion team to ensure that the wellbore is optimally stimulated to produce at the maximum commercial return. Then they go do it again, and again, and again, until they have drilled up and re-fraced the 3,200 locations that they have identified in that county.
This is all good, these are technologies and techniques that can be learned by most college graduates with a basic understanding of earth science and economics. The company will make money, a good return on their investment dollar, and they will survive. But they may not survive when they run out of shale wells to drill in that county. And it could be (successfully) argued that the Shale Revolution has saved the domestic oil industry from the effects of the last Great Crew Change by allowing them to survive without Exploration.
What, you thought this was a new thing? It's not, and as George Santayana once wrote, "Those who cannot remember the past are condemned to repeat it." During the late 1970s and early 1980s there was an older generation that found a lot of oil (Elmworth (1976), Prudhoe Bay (1968), Ekofisk (1969) and East Anschutz Ranch (1978), to name but a few) and went into retirement with the crash in prices (I remember when we sold a tank of sweet crude in the Gulf Coast for $20/barrel and were happy that the price was that good). I've never seen any figures, but I rather suspect that we lost proportionately as many as we have over the past few years.
The upstream industry back then was divided into two camps, development and exploration. Development was detailed and busy. You were charged with drilling wells to fully exploit an accumulation. Not no risk, but low risk. If you needed seismic, you got seismic. That's where the bulk of any company's budget that wanted to survive went. They were the bread and butter of the day.
Exploration was the opposite. You got relatively little budget because it was a sure bet you were going to drill a bunch of dry holes and "waste" it. Successes were few and far between and the learning curve was steep and easy to fall off of. Risk was the elephant in the room that nobody wanted to talk about but everybody had to figure out how to manage. New technology helped—it's not likely the Wyoming overthrust would have been found without CDP seismic or the Sacramento Valley Gas Province exploited without recognizing "bright spots" for what they were. Of course, there were over a hundred dry holes drilled in each of those plays (and countless others) before they broke open.
And then tight gas came along (helped by some favorable taxation), followed by shale gas, coal bed methane and now tight oil. These are all technology-driven, continuous-type reservoirs, most of which had been previously identified by vertical wells that encountered shows while drilling. This was great!! Little geologic risk, if you managed things right. They satisfied every manager's dream of repeatable mini-projects that were similar enough that you could book 'em before you drilled 'em. It became an issue of managing company resources (capital and people) to maximize the return on investment. Good managers became the rock stars, and the investment community their biggest fans.
And in the process the explorationists that were around slowly and inexorably disappeared—without leaving a new crop to carry on. And, just for the record, geologists don't always make the best explorationists. Engineers, geophysicists, even managers make great explorationists because they have "that something." Great explorationists share a few common qualities and traits: they're not afraid of hard work, they pay attention to (but don't get lost in) the details, they love what they do, and they persist until they drive everyone around them nuts. And, perhaps most importantly, they have learned what maps matter....
