The Swarm (6 page)

‘What's in the containers?'

‘The hydraulic unit for the winch, plus some other bits of machinery. The one at the front is home to the ROV control room. Mind your head.'

They stepped through a low door. Inside, over half of the space was taken up by the control panel and twin banks of screens. Some were switched off, but the rest showed navigational data and operational feedback from the ROV. A group of men sat with Lund at the consoles.

‘The guy in the middle is the pilot,' Alban murmured. ‘To his right, the co-pilot operates the articulated arm. Victor's very sensitive and precise, but the operator has to be equally skilled in telling it what to do. The next seat along belongs to the co-ordinator. He maintains contact with the watch officer on the bridge to ensure that the vessel and the robot work together. The scientists are over there, with Tina. She'll operate the cameras and record the footage.

‘Are we ready?' he asked her.

‘Prepare to lower,' said Lund.

One after another the blank screens lit up. Johanson could make out sections of the stern, the boom, the sky and the sea.

‘From now on we can see what Victor sees,' said Alban. ‘There are eight separate cameras, one main camera with zoom, two piloting cameras and five others. The picture quality's amazing - sharp images and luminous colours even several thousand metres below the surface.'

The robot descended and the sea loomed closer. Water sloshed over the camera lens and Victor continued downwards. The monitors showed a blue-green world that gradually dimmed.

The control room was filling with people, men and women who'd been working on the boom.

‘Floodlights on,' said the co-ordinator.

The area around Victor brightened, but the light remained diffuse. The blue-green paled, and was replaced by artifically lit darkness. Small fish darted into the picture, then the screen filled with bubbles. Plankton, thought Johanson. Red-helmet and transparent comb jellyfish drifted past.

After a while the swarm of particles thinned. The depth sensor recorded five hundred metres.

‘What's Victor going to do down there?' asked Johanson.

‘Test the seawater and sediment, and collect a few organisms,' said Lund, focusing on the screen, ‘but the real boon is the video footage.'

A jagged shape came into view. Victor was descending along a steep wall. Red and orange crayfish waved delicate antennae. It was pitch black in the depths, but the floodlights and cameras brought out the creatures' natural colours vividly. Victor continued past sponges and sea cucumbers, then the terrain levelled off.

‘We made it,' said Lund. ‘Six hundred and eighty metres.'

‘OK.' The pilot leaned forwards. ‘Let's bank a little.'

The slope disappeared from the screens. For a while they saw nothing but water until the seabed emerged from the blue-black depths.

‘Victor can navigate to an accuracy of within less than a millimetre,' said Alban.

‘So where are we now?' asked Johanson.

‘Hovering over a plateau. The seabed beneath us contains vast stores of oil.'

‘Any hydrates?'

Alban looked at him thoughtfully. ‘Sure. Why do you ask?'

‘Just interested. So it's here that Statoil wants to build the unit?'

‘It's our preferred site, assuming there aren't any problems.'

‘Like worms?'

Alban shrugged.

The Frenchman seemed to have an aversion to the topic, thought Johanson. Together they watched as the robot swept over the alien world, overtaking spindly legged sea spiders and fish half buried in the sediment. Its cameras picked up colonies of sponges, translucent jellyfish and miniature cephalopods. At that depth the water wasn't densely populated, but the seabed was home to all kinds of different creatures. After a while the terrain became pockmarked, coarse and covered with what appeared to be vast whip marks.

‘Sediment slides,' said Lund. ‘The Norwegian slope has seen a bit of movement in its time.'

‘What are the rippled lines here?' asked Johanson. Already the terrain had changed again.

‘They're from the currents. Let's steer round to the edge of the plateau.' She paused. ‘We're pretty close to where we found the worms.'

They stared at the screens. The lights had caught some large whitish areas.

‘Bacterial mats,' said Johanson.

‘A sure sign of hydrates.'

‘Over there,' said the pilot.

The screen showed a sheet of fissured whiteness - deposits of frozen methane. And something else. The room fell silent.

A writhing pink mass obscured the hydrate. For a brief moment they saw individual bodies, then the writhing tubes were too numerous to count. Pink flesh and white bristles curled under and over each other.

There was a sound of disgust from the men at the front. Conditioning, thought Johanson. Most humans disliked crawling, wriggling, sliding creatures, even though they were everywhere. He pictured the hordes of bugs swarming over his skin, and the billions of bacteria in his belly.

But, despite himself, Johanson was unsettled by the worms. The pictures from the Mexican Gulf had shown similarly large colonies, but with smaller worms sitting calmly in their holes. These worms never stopped slithering over the ice, a vast heaving mass that obliterated the surface.

‘Let's zigzag round,' said Lund.

The ROV cut through the water in a sweeping slalom movement, the worms ever-present.

Suddenly the ground fell away. The pilot steered the robot to the edge of the plateau. Even with the combined power of eight strong floodlights, visibility was limited to just a few metres, but it was easy to imagine that the worms covered the length of the slope. To Johanson they seemed even bigger than the specimens Lund had brought into the lab.

The screens went dark. Victor had launched itself over the edge. There was a hundred-metre vertical drop to the bottom. The robot raced on at full speed.

‘Turn,' said Lund. ‘Let's take a look at the wall.'

Particles danced in the beam of the floodlights. Then something big and bright billowed into the frame, filling it for an instant, then retreating at lightning speed.

‘What was that?' Lund called.

‘Turn back!'

The ROV retraced its steps.

‘It's gone.'

‘Circle!'

Victor stopped and started to spin, but there was nothing to see, apart from impenetrable darkness and showers of plankton glittering in the light.

‘There was something out there,' said the co-ordinator. ‘A fish maybe.'

‘Bloody big one,' growled the pilot.

Lund turned to Johanson, who shook his head. ‘No idea.'

‘OK. Let's go a bit deeper.'

The ROV headed towards the slope. A few seconds later a steep wall of seabed loomed into view. A few raised areas of sediment were visible, but the rest was covered with the now-familiar pink masses.

‘They're everywhere,' said Lund.

Johanson joined her. ‘Have you got a chart of the hydrate deposits here?'

‘The area is full of methane - hydrates, pockets in the rock, gas seeping through the seabed…'

‘I mean the ice on top.'

Lund typed something. A map of the seabed appeared on her screen. ‘See the light patches? Those are the deposits.'

‘Can you point out Victor's current position?'

‘About here.' She indicated an area of the map covered with light patches.

‘OK. Steer it this way, along and then up.'

The floodlights found a section of seabed devoid of worms. After a while the ground sloped upwards and then the steep wall appeared.

‘Take us higher,' said Lund. ‘Nice and slowly.'

Within a few moments they were back to the same picture as before. Pink tubular bodies with white bristles.

‘Just as you'd expect,' muttered Johanson. ‘Assuming your map is right, this is the site of the main belt of hydrates. The bacteria will be grazing the methane here…and being gobbled by the worms.'

‘How about the numbers? Would you have expected to see millions?'

‘No.'

Lund leaned back in her chair. ‘All right,' she said, to the man controlling the articulated arm. ‘Let's set Victor down for a moment. We'll pick up a batch of worms and take a look at the area.'

 

It was gone ten when Johanson heard a knock at his door. Lund came in and flopped into the little armchair, which, together with a tiny table, was the only comfort the cabin offered.

‘My eyes ache,' she said. ‘Alban's taken over for a while.'

Her gaze wandered over to the cheese and the open bottle of Bordeaux. ‘I should have guessed.' She laughed. ‘So that's why you rushed off.'

Johanson had left the control room thirty minutes earlier.

‘Brie de Meaux, Taleggio, Munster, a mature goat's cheese and some Fontina from the mountains in Piedmont,' he said. ‘Plus a baguette and some butter. Would you like a glass of wine?'

‘Do you need to ask? What is it?'

‘A Pauillac. You'll have to forgive me for not decanting it. The
Thorvaldson
doesn't have any respectable crystal. Did you see anything interesting?'

He handed her a glass, and she took a gulp. ‘The bloody things have set up camp on the hydrates. They're everywhere.'

Johanson sat down opposite her on the edge of the bed and buttered a piece of baguette. ‘Remarkable.'

Lund helped herself to some cheese. ‘The others are starting to think we should be worried. Especially Alban.'

‘So there weren't as many last time?'

‘No. I mean, more than enough for my liking - but that put me in a minority of one.'

Johanson smiled at her. ‘People with good taste are always outnumbered.'

‘Tomorrow morning Victor will be back on board with some specimens. You're welcome to have a look at them.' She stood up, chewing, and peered out of the porthole. The sky had cleared. A ray of moonlight shone on the water, illuminating the rolling waves. ‘I've looked at the video sequence hundreds of times, trying to work out what we saw. Alban's convinced it was a fish…and if it was, it must have been a manta or something even bigger. But it didn't seem to have a shape.'

‘Maybe it was a reflection,' Johanson suggested.

‘It can't have been - it was just a few metres away, right on the edge of the beam, and it disappeared in a flash, as thought it couldn't stand the light or was afraid.'

‘A shoal can twitch away like that. When fish swim close together they can look like a—'

‘It wasn't a shoal, Sigur. It was practically flat. It was a wide two-dimensional thing, sort of…glassy. Like a giant jellyfish.'

‘There you are, then.'

‘But it wasn't a jellyfish.'

They ate in silence for a while.

‘You lied to Jörensen,' Johanson said suddenly. ‘You're not going to build a SWOP. Whatever it is you're developing, you won't need any workers.'

Lund lifted her glass, took a sip and put it down carefully. ‘True.'

‘So why lie to him? Were you worried it would break his heart?'

‘Maybe.'

‘You'll do that anyway. You've no use for oil workers, have you?'

‘Listen, Sigur, I don't like lying to him but, hell, this whole industry is having to adapt and jobs will be lost. Jörensen knows that the workforce on Gullfaks C will be cut by nine-tenths. It costs less to
refit an entire platform than it does to pay so many people. Statoil is toying with the idea of getting rid of all the workers on Gullfaks B. We could operate it from another platform, but it's scarcely worthwhile.'

‘Surely you're not trying to tell me that your business isn't worth running?'

‘The offshore business was only really worth running at the beginning of the seventies when OPEC sent oil prices soaring. Since the mid-eighties the yield has fallen. Things'll get tough for northern Europe when the North Sea wells run dry, so that's why we're drilling further out, using ROV's like Victor, and AUVs.'

The Autonomous Underwater Vehicle functioned in much the same way as Victor, but without an umbilical cord of cable to connect it to the ship. It was like a planetary scout, able to venture into the most inhospitable regions. Highly flexible and mobile, it could also make a limited range of decisions. With its invention, oil companies were suddenly a step closer to building and maintaining subsea stations at depths of up to five or six thousand metres.

‘You don't have to apologise,' said Johanson, as he topped up their glasses. ‘It's not your fault.'

‘I'm not apologising,' Lund snapped. ‘Anyway, it's everyone's fault. If we didn't waste so much energy, we wouldn't have these problems.'

‘We would - just not right now. But your environmental concern is touching.'

‘What of it?' She bristled at the jibe. ‘Oil companies
are
capable of learning from their mistakes.'

‘But which ones?'

‘Over the next few decades we'll be grappling with the problem of dismantling over six hundred uneconomic, out-of-date platforms. Do you have any idea what that costs? Billions! And by then the shelf will be out of oil. So don't make out that we're irresponsible.'

‘OK, OK!'

‘Unmanned subsea processors are the only way forward. Without them, Europe will be dependent on the pipelines in the Near East and South America.'

‘I don't doubt it. I just wonder if you know what you're up against.'

‘Meaning?'

‘Well, massive technological challenges for a start.'

‘We're aware of that.'

‘You're planning to process huge quantities of oil and corrosive chemicals under extreme pressure, with little provision for human intervention…' Johanson hesitated ‘…you don't really know what it's like in the depths.'