Stimulation Treatments - ČZU

Cleanout Tools & Chemicals | Downhole Video Diagnostics | Stimulation Treatments

Stimulation Treatments

Vision

© 2012, ABRADO WELLBORE SERVICES. ALL RIGHTS RESERVED. 2

“TO PROLONG WELLBORE PRODUCTIVE LIFE”

THROUGH THE DESIGN AND PROVISION OF INNOVATIVE DOWNHOLE TOOLS, CHEMICAL TREATMENTS AND DIAGNOSTIC TECHNOLOGY SERVICES…….

We provide the latest in modular wellbore cleanout tools

combined with enhanced chemical treatments

for creating the optimum wellbore environment


Cleanout Tools & Chemicals Stimulation Treatments Downhole Video Diagnostics

Tools……..Chemicals……Technology

Stock Photo

Service Expansion

4 © 2012, ABRADO WELLBORE SERVICES. ALL RIGHTS RESERVED.

Wellbore Cleanout Tools and Job Planning

Displacement Chemicals and job supervision

Tubing Cleanout Tools, chemical treatments and job supervision

Downhole video and diagnostic tools and services

2012

Abrado is an independent

provider of equipment and services engineered to prolong the productive life of the wellbore.

Q4 2009 - 2011

Strong Value Proposition

Global reach

World class products and

services

Committed Partner

“Abrado has one of the most experienced management teams in the wellbore integrity business with more than 150 combined man years of operational downhole experience"


Microbial

• Paraffin

• Reduction in Bacterial Sulfide reductions

• Asphaltenes

• Emulsion or Water Blocking

Chemical

• Surfactants

• Acidization

• D-Limonene (Environmentally friendly solvent)

• Perf Plug

Hydraulics

• Optimum delivery system

• Perforation tunnel clean out

• Barite Sag removal

• Sand, Cement removal

• Scale : NaCl, CaCl+3, Barium, Strontium Chloride



Proprietary Fluidics Oscillator Technology/CT Service

• Proven, cost-effective process for treating near-wellbore/perforation damage and stimulating production.

• Successfully used to treat over 6,500 wells globally.

• Cleaned out /de-scaled over 1,300 wells in Permian.

• Successfully deployed in vertical and horizontal wells .

• Highly efficient delivery mechanism for bio-remediation treatments.

• Can be run on drill-pipe, tubing and coiled tubing.

• Prolongs the life of the wellbore/completion and optimizes production and injection performance. • Leads to enhanced production or injection through reducing debris contained within the perforation cavities. • A successful wellbore stimulation requires the right combination of mechanical tools, microbial treatment and supervision.

The Bio Treatments are….. • Used to decrease oil viscosity, increase API gravity

and solubilize paraffins to improve fluid flow. • Economically attractive for marginal oil fields. • Easily produced cost effectively. • Inexpensive and easy to handle in the field. • Pumped through existing facilities. • Biodegradable and therefore environmentally

friendly.

The Tools specifically…. • Remove deposits from perforations and screens. • Perform near wellbore stimulation of high

permeability formations. • Prepare wells prior to stimulation treatments. • Prepare wells prior to gravel packing /fracturing. • Clean out fill from open hole or casing. • Aid management of injection profiles. • Enhance placement of treating chemicals. • Remove scale from tubing and nipple profiles.

8

Stimulation Services


Oscillator Tool System


Milestones Proven Cost-Effective Process for treating near-wellbore and perforation damage,

removing scale build-up and stimulating production and injection.

Used successfully to treat over 6,500 wells in 26 states and 37 international areas.

Completed over 1,300 wells in the Permian basin.

Effective results in both vertical and horizontal wells including oil, gas, geothermal, water

and CO2 injection, disposal and monitoring wells.

Wells successfully treated from 90 ft to 27,000 ft deep and temperatures up to 750°F.

3,600 ft, 10” i.d., Waterflood injection line packed with Barium Sulfide Scale cleaned in

one run.


Fluidic: of, relating to, or being a device (as an amplifier or control) that depends for operation on the pressures and flows of a fluid in precisely shaped channels

Acoustic Streaming: the production of unidirectional flow currents in a fluid because of the presence of sound waves

Synergism: an interaction of elements such that their combined effect is greater than the sum of their individual effects. (Fluidic Oscillator, Acoustic Streaming, Proper Treatment Fluids and Correct Treatment Design)

Technology Definitions


Proprietary fluid flow internal geometry causes

the Fluidic Oscillator Tool to

oscillate which produces

alternating bursts of fluid

to be ejected into the

wellbore. These bursts of

fluid create pulsating

pressure waves within the

wellbore and formation fluid that break up and remove any type

of near wellbore damage.

Technology Principal


Cyclic Loading: Stress loading caused by the oscillating pressure waves as the tool is reciprocated through the interval.

Acoustic Streaming: "Pinpoint" placement of fluid.

Chemical reaction: Enhances the chemical reaction through increased fluid mixing and by increasing the surface area for contact.

Cleaning Mechanisms


Patented fluidic oscillator is run on coiled tubing or on jointed pipe when a rig is on the well.

Unique design of the tool produces oscillation as fluid is pumped through the tool.

Fluid can be acid, water, seawater, diesel, nitrified fluids, etc.

Combines coiled tubing efficiency with fluidic oscillator technology.

Versatile Technology


Standard 1.25” O.D. Oscillator .75 - 2 BPM

Fluidic Oscillator Tool with Tungsten Carbide applied can be run with a motor in severe applications. Available in sizes

1.75” and up.

Fluidic Oscillator Tool with protective sleeve for severe applications

Standard

1.50” O.D.

Oscillator

1.5 – 6 BPM

4 Patents issued to date – FOSCT-Z3


Water, acid, diesel, CO2 N2 foamed fluids or any other non-abrasive fluid.

The pumped fluid is always an integral part of the treatment.

The type of fluid is determined by the nature of the problem.

Ideal fluid properties to consider:

• Surface tension reduction • Friction reduction • Surfactant activity • Penetration capability • Solids suspension • Wettability protection • Acid retardation • Increased solubility

Fluid Types


Loss of production or injectivity due to wellbore or near-wellbore conductivity problems caused by: All Types of Scales Paraffin Cake Deposition Migrating fines Asphaltene deposits Lost or de-hydrated drilling mud

Well not producing or injecting at

maximum potential

Gravel-Pack plugged with fines, scale and debris or producing sand from the pack

Ineffective stimulation treatments, (acidizing, fracturing, frac-pack and gravel-pack, etc.) due to near-wellbore blockage or restrictions

Issues Addressed


Used in severe applications on threaded pipe when a service rig is on the well and when milling may be necessary. Can be run on any size tubing,

drill pipe, wash pipe, etc. Available in sizes from 3.75” to 6.125” and up.

Hybridization


Abrado, LLC

10/20/2011

Removal of scale deposits from tubing and casing.

Removal of deposits from the near wellbore area.

Primary stimulation of high permeability formations.

Preparation prior to stimulation treatments.

Preparation for gravel packing or frac packing.

Clean out fill from open hole, casing or tubing.

Alteration of injection profiles.

Correct placement of treating chemicals.

Specific Applications


Texas: Wolfcamp Formation Well Production Jumps From 6 BOPD to 250

BOPD

0

50

100

150

200

250

300

BOPD

Before

Treatment

Just After

Treatment

Two

Months

Later

Six Months

Later

Scale and paraffin problems had lowered production to 6 BOPD. Results: Six months after the Fluidic Oscillator Tool treatment, the operator reported that the oil production stabilized at 250

BOPD.

Case History


Colorado: Production Doubled from Desert Creek Formation Well

Results: Damage was removed and production restored to the same levels as when the well was first completed, 425 BOPD and 865 MCFD.

Case History

Before Fluidic Oscillator Tool Service After Fluidic Oscillator Tool Service

Clean® Service After PerfClean® Service

Fluidic Oscillator Tool Service performed on day 24

Scale buildup had caused production from this well to decline to 99 BOPD and 437 MCFD.


Southern Illinois: 10” Injection flow line choked off with Barium and Iron Sulfide Scale, Pre and Post Treatment.

Case History


Egypt: Two Cretaceous sandstone reservoirs were completed as a straddled completion, accessed through a Sliding Side-Door® valve.

Expected production of 1,000-1,200 BOPD, but the zone initially produced only 200 BOPD, and later declined further to an intermittent flow of 0 to 50 BOPD.

Because the zones of interest were isolated from the main wellbore and only accessible through the Sliding Side-Door® valve, direct access to the perforations was impossible.

The Fluidics oscillator Tool was deployed to help fatigue the suspected debris buildup in the zones.

Clay stabilizer and fines control were used with acid system, and pumped at 60 GPF and 28 GPF, respectively.

Volumes were controlled to minimize the job cost, and clay stabilizer material was used for over-displacing the acid and then again for the displacement stage.

After stimulation, the well initially flowed at 1,500-1,600 BPD, without artificial lift.

Production later stabilized at approximately 1,300 BOPD.

“The economic value created by the Fluidics Oscillator tool and the acid system solution is more than $27.4 million, including $120,000 in reduced job costs” - Customer

Case History (SPE # 93071)


Eliminate: Mud & cement damage Mechanical damage Damage from perforating Blockage within Gravel

Pack Scale deposition Paraffin and asphaltenes Water Blocks Gas Blocks Acid sludges Emulsions Clean out fill

Reduce Skin Damage


Case History (Case L5A 238)

Run Fluidics Oscillator Tool on 1.25” CT and treat the open hole thru the 164ft slotted section with: 120bbl 2% KCL & 60 BBL 15% HCL Acid Result: Production increased to 4.0 MMCFD with 350 BFPD

De

Indonesia


USA: Fluidic Oscillation Tool Restores Gas Delivery Rate In Storage Wells

Case History (SPE # 91390)

pre-treatment, perforations blocked with scale post-treatment, perforations open to injection


Fluidic Oscillator Service used in conjunction with a third

party proprietary stimulation fluid system to remove filter cake and drilling fluid residue from long, horizontal gravel pack completions with screens.

Results: 62% productivity increase.

Recent tests demonstrated the effectiveness of fluidic oscillation in moving fluid through a screen into the gravel pack.

Case History (SPE # 81732) North Sea: Fluidic Oscillation Tool removes mud debris


Post Oscillator Imaging Run


Stock Photo

Increased production with reduced skin effects

Lower injection pressures, higher rates on injection wells

Enhances the use of chemicals through optimal placement and increasing contact area

Fast, economical thru-tubing deployment with coiled tubing

Not limited by stand-off or hydrostatic limitations, effective in large diameter casing and open hole applications

Reliable – no elastomers or moving parts, compatible with wide range of treating fluids and temperatures

Summary


The synergism of “cyclic loading”, “acoustic streaming”, and “chemical reaction”, results in the restoration and enhancement of the natural near wellbore permeability

Fluidic Oscillator Tool System technology is well proven.

It is effective in all phases of well completions and workovers.

Abrado’s Fluidic Oscillator Tool System

enables the well operator to

Maximize Profits, not just Cut Costs!

Conclusion


SPE # 81732 (April 2003)

Damage Removal in Screened Horizontal wells

SPE # 82261 (May 2003)

Structured Approach to Matrix Stimulation Proves Successful in Oman

SPE # 86545 (February 2004)

Production Improvement for Horizontal well in Sumatra

SPE # 89653 (March 2004)

Screen and Near-Wellbore Cleaning and Stimulation Tools Evaluation

SPE # 91390 (September 2004)

Fluid Oscillation Tool Restores Gas Delivery Rate from Storage Wells

SPE # 93071 (March 2005)

Optimizing Stimulation Treatments in Straddled Completions

SPE # 93987 (April 2005)

Ensuring Effective Stimulation Treatments in Difficult Completions

SPE Technical Papers



SPE # 102629 (September 2006)

Remediation of Production Loss Due to Proppant Flowback in Existing Wellbores

SPE # 102626 (October 2006)

Remediation of Production Loss Due to Proppant Flowback in Existing Wellbores

SPE # 106592 (March 2007)

Maximizing Well Productivity Through Water and Sand Management-A Combined Treatment

SPE # 106108 (May 2007)

Remediation of Proppant Flowback-Laboratory and Field Studies

SPE # 11452 (December 2007)

Fluidic Oscillation Technique in Conjunction with Acid Stimulation Improves Gas Wells Productivity

SPE # 113695 (April 2008)

Coiled-Tubing-Conveyed Proppant Treatment Yields Increase in Production Efficiency and Return on Investment

SPE # 120226 (May 2009)

Fluidic Oscillation Technique in Conjunction with Acid Stimulation Improves Gas Wells Productivity

Contacts

Name Title Email

Sandy Esslemont CEO [email protected]

Benny Silguero Clean out [email protected]

Mike Rhodes Displacements [email protected]

Andy Rowe Stimulation [email protected]

Phil Schultz Diagnostics [email protected]


ABRADO Wellbore Services 16203 Park Row, Suite 160 | Houston, TX 77084 O: 713 896-9960 | F: 713 983-6312

Cleanout Tools & Chemicals | Downhole Video Diagnostics | Stimulation Treatments

Thank you!

Third Party Video System for illustration

34

Working in partnership with companies of all sizes to support their

wellbore integrity needs and production objectives

Stimulation Treatments - ČZU

Documents

Transcript of Stimulation Treatments - ČZU