Image Fracking, BREXIT and an oil and gas shale bonanza [Lima Charlie News][Image: Ben Stansall/AFP]

Fracking, BREXIT and an oil and gas shale bonanza


As the U.K. celebrates its final year as part of the European Union, it is standing on the brink of a major boost to its economy and prosperity as it awaits the first economic benefit from its rich oil and gas shales.

British exploration and production company Cuadrilla and others have fought a long battle to begin drilling in earnest for the extraction of shale oil and gas in the UK. British shale reserves are extensive and rich in gas and oil trapped in sedimentary basins in several parts of the nation, but especially in Lancashire and Yorkshire. The British Geological Survey estimates that the Bowland basin holds 1,300 trillion cubic feet (tcf) of gas. Almost seventy wells have already begun. The reserves are enormous.

“If a tenth can be extracted – and US frackers can do better than that – it would cover Britain’s entire gas needs for half a century,” according to Ambrose Evans-Pritchard in The Telegraph.  The same article quotes Cuadrilla’s chief executive, “We’ve just drilled the rocks and they are the best results we’ve ever seen. It is a huge resource. This could last us through to 2050.”

Britain used to be an energy exporter. Britain was a net exporter of energy until 2003, when the balance was reversed by the policies of the government of Tony Blair and sustained by the opposition of the Green Party.

This inability to deal with British energy supplies has produced a costly and threatening energy posture until recently, when the UK government gave the go-ahead to start drilling. The energy industry has shrunk from around 10% of GDP in the late 1980s to the current percentage of around 2%. In the interim, Britain has become a net importer of energy supplies and has been paying for energy supplies on the price terms of the international market.

[British Geological Survey (BGS)]
[Aleklett’s Energy Mix]

Since that decline, Britain’s energy supplies and trade have been in imbalance. Britain began to import energy at a period when supplies were decreasing and the prices high. In a key study conducted by the UK Department of Business, Energy and Industrial Strategy in July 2017, “UK ENERGY IN BRIEF 2017” – the researchers pointed out that the UK was a net importer of energy.

The reaction to the constraints on the energy supply were also the result of European policy diktats. Britain has been held back in the development of its vast fracking reserves by the politics of the European Union as well as by its Greens. EU policy has allowed the EU to become dangerously dependent on supplies from Russia and has only recently sought to diversify its supply elsewhere. The diversity included allowing for import terminals to be built in Lithuania and elsewhere to import LNG into Europe, but it has not included the EU allowing for fracking to be pursued by drilling within the region.

An advantage of the UK leaving the European Union will be its embrace of energy resources that will enter the market from fracking and the immense collateral advantages of having a large domestic supply of energy at an inexpensive price. Included is the creation of jobs required in drilling, transport, and storing the oil and gas as well as the creation of a burgeoning market for steel pipelines, storage tanks, chemical processing of the feedstocks of oil and gas production, and an export industry of energy to the EU, among others.

A new generation of marine vessels needs to be built run on LNG or compressed gas, along with a bunkering facility for these vessels when they reach European and UK ports. Coal-fired electrical plants can be phased out and reconstructed using gas as a feedstock. Recent studies have shown that replacing coal as a feedstock by gas reduces emissions by more than two-thirds. The environmental advantages include stopping the spread of nuclear energy and augmenting the gas production by using Britain’s expanding offshore-wind energy supplies.

The trend towards using gas as an energy source has already changed the European energy market; however, with largely imported supplies.

[OECDmix (IEA)]
Britain currently has a large domestic pipeline system with over 21,000 miles of gas pipeline in place, allowing for easy distribution of fracked gas throughout the nation. Major international gas pipeline interconnectors allow for the transfer of gas to the EU without the need for turning to LNG or compressed gas, which would prove competitive to U.S. and Russian LNG.

[NationalGrid UK]

[Norwegian Petroleum Directorate]
The lessons learned in the production of fracked oil and gas in the U.S. were that in order to compete with OPEC’s desire to drive the U.S. industry to its knees it would lower the oil price to make fracking uncompetitive. Instead of folding up their hands, U.S. producers innovated new processes and introduced new technologies which drove down costs. Now, OPEC cannot compete and is fighting a losing battle to drive out U.S. frackers. The U.S. will be self-sufficient in energy by late 2019. British frackers may avoid the high costs and impediments of the first generation of fracking in the U.S. and use the new technologies derived in U.S. markets to build a very competitive and efficient UK energy business.

The Technological Revolution

The fracking industry has gone through a considerable technological revolution since its inception. The initial model of the fracking process included drilling a hole in the ground and continuing the pipe at a right angle below the ground to free up oil and gas trapped in the shale.

This technology failed to deal with several problems which were not envisioned at the outset. One of the major problems was the demands of fracking for high quantities of water. A typical U.S. wellhead at that time required more than 3.5 million gallons of water per frack. Up to 60 percent of that water was returned from the well as wastewater, or “flowback.” Managing the flowback and overall water life-cycle was easily one of the costliest parts of the fracking equation and a source of environmental concerns.

The high water demand was addressed by increasing the yield of each well by increasing the use of sand. Sand is a much greater tool in hydraulic fracking than drillers had understood it to be. The more grit they pour into horizontal wells — seemingly regardless of how extreme the amounts have become — the more oil comes seeping out. On a per-well basis, sand use has doubled since 2011, climbing to nearly 9 million pounds.

Sand is by no means new to the oil industry, but its taken on an importance in fracking that it never had in traditional vertical-well drilling. Because shale rock is so dense, drillers rely on large quantities of both sand and water to tease the oil out. The water is blasted into the well at high pressure to create tens of thousands of tiny cracks in the rock. The sand then keeps the cracks open, elongates them and makes them more jagged. By increasing the amount of sand, drillers have found one increases the amount of fractures that stay open.

Image A worker monitors water pumping pressure and temperature at an Encana Oil & Gas Inc. fracking site, outside Rifle, Colorado (AP Photo/Brennan Linsley)
A worker monitors water pumping pressure and temperature at an Encana Oil & Gas Inc. fracking site, outside Rifle, Colorado (AP Photo/Brennan Linsley)

One of the key innovations was the development of “zipper fracking,” developed in 2012 by professors at Texas Tech University. The process requires operators to drill two wells side by side. Once both wells are completed, they’re fracked at the same time. The fractures form a zipper pattern that cracks the rocks more deeply and efficiently than in a single well. The process allows both wells to produce more oil and gas. In the Barnett Shale, a formation near Fort Worth, Texas, the zipper-fracked wells doubled the volume of a typical well.

Another one of the largest cost-saving techniques came from the offshore oil industry. When drilling wells offshore, it isn’t feasible to build a platform, or pad, for each well. So out on the ocean, several wells are drilled from a single pad. They are like “chicken feet” with several horizontal wells being drilled around the base of the vertical shaft. In some cases, there are five to seven horizontal wells leading to a central well shaft.

Onshore shale drillers quickly adopted that technique for themselves. Because shale is a uniform layer of rock, companies can drill the wells close to each other. Since the drillers don’t have to move the rigs too far between holes, the method saves time and money. The process of taking down and setting up a drill rig can take days and cost a company hundreds of thousands of dollars.

In addition, many shale layers, like those in the Bakken and the Eagle Ford and Permian Basin in Texas, are stacked like pancakes. Companies can drill many wells into these layers, reaching many layers of stacked shale reefs; a single pad can have many “stacked laterals”. The trend has been to extend these laterals to over two miles in length. There are even “superlaterals” being introduced.

According to Laredo Petroleum, a U.S. company based out of Tulsa, Oklahoma, 64 wells in four shale layers will recover 44 million barrels of oil. If it only targeted the top layer, it would recover just 12 million barrels of oil. The stacked laterals increase production by nearly fourfold.

Drillers have added to their tools the use of smart drill-bits with computer chips that can seek out cracks in the rock and adjust the drilling accordingly. Several companies have developed and introduced dissolvable plugs. Schlumberger has introduced their Infinity* dissolvable plug-and-perf system. This unique solution uses fully degradable fracture balls and fully degradable seats instead of plugs to isolate zones during well stimulation. The first-ever full bore interventionless plug-and-perf system eliminates the need for milling operations and leaves nothing behind in the wellbore. As a result, no plug debris is produced to surface where it can potentially interfere with surface equipment. The technique eliminates lateral length restrictions, which maximizes reservoir contact and estimated ultimate recovery, and it greatly reduces intervention-related risks and costs. It is what has permitted the superlaterals. This can save almost $300,000 each well.

Another innovation in the fracturing process is the “KickStart” dissolvable system that incorporates “degradeable technology.” Energy giant Schlumberger reports that it saved an operator $5.4 million in less than a year, and “offers a faster and more cost-effective method of starting the fracturing process, especially in horizontal and highly deviated wells.”

There have been many developments as well in drilling processes, especially expandable tubulars, more cost-effective rotary steerable systems, and intelligent drill pipe for high-rate bottomhole data telemetry. An exciting development has been the expandable tubulars because they offer the potential for a “monoborehole” and drilling to depths no longer limited by initial hole diameter. As a result, the focus on tubulars has concentrated on expandable casing.

Microwave Fracking

Perhaps the most exciting of the new technologies is the introduction of microwave fracking, the most environmentally favourable method of all. It eliminates the problem of the disposal of wastewater that some fear could contaminate groundwater in these communities where fracking operations are located. The use of microwave fracking is of value in the extraction of oil shale. Conventional rigs are able to effectively retrieve shale oil but they’re not as effective when it comes to oil shale.

Oil shale is a solid organic material accumulation of shale rocks. To get oil out of oil shale, the solid rock must be crushed and then heated to liquefy the oil or by injecting steam into the rock. These methods aren’t particularly effective, but microwave fracking could be the answer. Microwaves can heat the rock more effectively and efficiently than steam which is ideal if an oil company wants to produce economically justifiable oil from oil shale. A single one of these microwave oil operations could produce around 800,000 barrels of oil.

All these techniques and adaptations have dramatically lowered the cost of shale oil and gas drilling as well as increasing the yields from each well. This has allowed the shale providers to maintain their economic viability in a market with decreasing prices. It has also dramatically reduced the environmental impact of the fracking installation.

Brexit and Fracking

The U.S. found that the level of serendipity of fracking included many local jobs in shops and retail establishments, the decentralisation of major investments in factories and refineries towards the areas of energy production, and even the laying of fibre-optic cables along with the new pipelines which provided a broad network of rural internet connections.

The British Government has set up a scheme to reward the local communities in which drilling takes place and a proposed Shale Wealth Fund to make sure that local communities benefit directly from fracking in their neighbourhoods. A fracking bonanza could be a great benefit to all UK citizens and local communities.

The UK is now standing on the brink of an industry which could dramatically revive its fortunes outside the EU. By the time of the British exit of the EU and its “implementation” period the fracking industry will have begun to produce real returns for the country. The EU may find that it needs the UK far more than the UK needs the EU.

As Europe tries to free itself from dependence on Russian oil, the UK energy supply can play a major political factor in providing a reliable, interconnected, alternative source.

[Main image: Ben Stansall/AFP]

Dr. Gary K. Busch, for Lima Charlie News

Dr. Busch has had a varied career-as an international trades unionist, an academic, a businessman and a political intelligence consultant. He was a professor and Head of Department at the University of Hawaii and has been a visiting professor at several universities. He was the head of research in international affairs for a major U.S. trade union and Assistant General Secretary of an international union federation. His articles have appeared in the Economist Intelligence Unit, Wall Street Journal, WPROST, Pravda and several other news journals. He is the editor and publisher of the web-based news journal of international relations

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