Seven habits for highly effective [tight] floods

Flooding sub 1 mD rock: overrated or underrated?

If you are drilling in tight rock, you need AppIntel to find out how the floods of other operators are progressing. Without using AppIntel to review field installations, how will you know?

What patterns work? How does injectant behave in tight rock? Of what should you be aware before pushing water into your sub 1 mD rock? What are the differences from a regular flood?

One operator has put a lot of study into water flooding sub 1 mD rock. She looked at analogs. Special unsteady-state water-oil relative permeability lab tests were included as simulation inputs. She tested several patterns.

Her final simulated pattern arrangement indicates a 65% sweep efficiency.

Since this flood was proposed several years ago, you can see the actual field results of her tight flood pilot.

Help yourself to her application documents. You can get them in moments from our secure check-out.

5 things we can't do without AppIntel

Without AppIntel you can't find similar floods. Using AppIntel's search engine you can search for   tight flood near 75-20W5 .

Without AppIntel you can't get application documents within moments -- you need to wait days for weeks for service from the AER.

Without AppIntel you can't search by UWI. Up to 30% of applications don't have UWI's. At Appintel we add them.

Without AppIntel you can't tell if there are any confidential documents associated with an application. How do you get confidential documents released if you don't know they exist?

Without AppIntel you won't get an email alert when someone submits an application within 20 miles of your operation. You won't get an email when someone submits an application with   tight flood   somewhere in the document.

Flooding extremely tight rock: evolution or revolution?

Real flooding is far more advanced and complicated than you learned in the text books. And the homogeneous bounded circular reservoir is very different from a sub 1 mD formation.

These types of floods are described more by their edge traits, not their average matrix. Their success is defined by their heterogeneity, not their homogeneity.

Averaging in nature - the internet quiz

Internet quizzes are very popular these days. Based on your answers, we'll tell you how much you weigh.

Quiz: If a home at the end of the block has 1 child, and a home at the other end of the block 10 children, how many children are in the home in the middle of the block?

• a) The middle home has 5 children.
• b) The middle home 5.5 children.
• c) The middle home might have some children.
• d) No idea.

If you answered a), you weigh double the weight of the average grade 5 child: 75 lbs.

If you answered b), you weigh the same as the average technical person downtown: 186.54 lbs.

If you answered c), you weight something -- more than 0 and less than 1 metric tonne.

If you answered d), congratulations, you weigh 15 lbs less than your bathroom scales said this morning.

The seven habits for highly effective [tight] floods

The seven habits are a cross between Covey-esque self help algorithms and Proven's Optiflood process.

Habit 1. Plan for flood fluid success

Picking the injectant type and additives is very important. And ensure you source sufficient fluid.

Don't forget to check the fluid mobility.

Habit 2. Plan the patterns for heterogeneity

Ask yourself, which heterogeneity will control the injectant movement.

Which will control the reservoir fluid movement.

Habit 3. Balance the injection

Get the injectant to the right locations. Picking the injectant locations is only part of the puzzle. Foreseeing how the patterns work within a heterogeneous reservoir is tricky.

Getting the injectant to these locations is also very important.

Habit 4. Think like the reservoir

Try lying in the reservoir in your mind and visualizing how the potentials move you along.

Habit 5. Seek to understand the flood pressure performance

Ask yourself, where will the pressure increase? Which parts of the heterogeneous reservoir will be affected the most?

Habit 6. Add new ideas and strategies

After starting the flood, your job is far from over. The further along in the flood, you can become much smarter. Too many floods are abandoned without seeking to understand the reason for fluid break through -- without any remedial work.

Habit 7. Review and Improve

Manage the production water cuts carefully. Based on performance, where should infills be drilled? Where are new injectors needed?

Re-balance the injection -- move injection from watered out areas to high oil patterns.

Tags: Tight, Flood

Granger Low   15 May 2017

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