helicoid perforation

Helicoid perforation

Helicoid LLCOffice 613, Building 2, 14 Namyotkina Str., Moscow 117420

Tel. (495) 332-00-50, e-mail: [email protected]

Profile of the field with hard to recover oil

reserves (field below the gas cap and

water-oil areas)In Russia almost all developed fields in the traditional regions of oil production (Caucasus, Urals-Volga region, the Western Siberia) are characterized by high degree of depletion – over 60%. The share of active fields accounts for the third of all discovered reserves, 67% of which are hard to recover reserves, including high-viscosity oils – 13%, low-permeability reservoirs – 36%, small thickness formations –4%, under-gas-cap zones –14%.Also the greater share of the reserves accounts for the fields with vast water-oil areas (WOA).

2Helicoid LLC

Office 613, Building 2, 14 Namyotkina Str., Moscow 117420Tel. (495) 332-00-50, e-mail: [email protected]

Water Oil-bearing formation Gas cap

Creation of water and gas cones

During classical fields’ development, where active bottom waters and gas cap are available, waterand gas cones are always created in the production well. The m ain reason for their creation isdepression in the well and pressure gradient in the formatio n.

3Helicoid LLC


Water

Gas

Oil

Methods of decreasing the depression on

formation

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During drilling with redrills

Hydraulic perforation (point-type) or slot perforation

Cavity wash-in with an acid during repeated

completion

1. Performing hydraulic fracturing of formation.

2. Deep penetrating formations’ perforation.

Distribution of formation pressure during

normal well operation

During operation of a production well the abovementioned fo rmation pressure distribution isestablished in the producing formation.Maximum differential pressure gradient Рform takes place in borehole and bottom-hole zones of theformation (up to 1 m).

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Formation bottom-hole zone

Radius

Pbottom-hole

Formation pressure distribution during operation

of the well with increased diameter

In the well with the increased bore diameter in the producing formation to maintain well productionrate it is required to decrease significantly depression on the formation, it means decrease ofpressure gradient in bottom-hole zone of the formation.

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Formation bottom-hole zone

Radius

Transformation of slot-type (radial)

abrasive jet perforation into helicoid

Helicoid formation completion with slot screw pitch less th an slot height leans to creation ofcylindrical mine working of the increased radius (0.5 – 1 m).

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Slo

t sc

rew

pit

chS

lot

he

igh

t

a) Slot screw pitch > slot height b) Slot screw pitch < 0.7 slot height

Transformation of slot-type (radial)

abrasive jet perforation into helicoid

For obtaining helicoid perforator it is proposed to usecommercially produced perforator of type PSch-6-146(Russian: ПЩ-6-146).

The cost of the perforator with spare parts, tools and

accessories is RUB 300 ths.

For improvement of the perforator (turning of threadingrollers at the design angle relative to perforator axis andnozzle reorientation) Avangard LLC is selected, which iscertified by Skolkovo Innovation Center for performingsimilar works and experienced in complex petroleumequipment.

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Calculation of oil yield increase after

application of helicoid perforation

Nowadays average achieved depth of vertical slot for hydrau lic perforation is up to 1 m. Carrying outthese works will allow well production rate increasing by 42 % if compared to the ideal (s=0) orexpressed in terms of skin factor decrease it to -2.5 fractio n units.

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Slot depth, m

well production rate increase,% S, fraction unit

we

llp

rod

uct

ion

rate

incr

ea

se,%

Sk

infa

cto

rv

alu

e,

fra

ctio

nu

nit

Comparison of helicoid perforation and

hydraulic fracturing of formation

Materials and equipment usedduring hydraulic fracturing offormation:1. Proppant agent – 35 tones(20/40)2. Fracturing fluid – 180 m33. Flow string N80 88.9x7.344. Packer of type PRO-YaMO2-YaG1(f)-145-58-600-Т1000К3-02(Russian: ПРО-ЯМО2-ЯГ1(ф)-145-58-600-Т1000К3-02) (100 MPa)5. Pump unit 70 MPa6. Sand blender7. Instrumentation station8. Filtration stationPrice of work (without wellworkover team) – USD 100 ths.

+ well production rate increase 2-4times.- Application of aggressive fluidsfor fracturing (forbidden in somecountries).

10Helicoid LLC


Effective formation thickness 4 m

Materials and equipment usedduring helicoid perforation:

1. Proppant agent – 22 tones (20/40)2. Process water – 100 m33. Flow string N80 88.9x7.344. Pump unit 32 MPa

Price of work (without wellworkover team) – USD 30 ths.

+ well production rate increase 1.5times; selective completion (thepossibility of work in under-gas-capzones with active oil-water contact).

Water

Gas

Oil

Proppant

Pattern of water and gas cones creation in the

formation during completion of well with increased

diameter (helicoid perforation)

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Increase of well bore diameter and decrease of depression on the formation will allow welloperation under water-free mode.

Helicoid perforation application area

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1. production wells:А. Completion of formations with close location of water-oil contact or gas-oil contact(carrying-out of formation hydraulic fracturing will lead to penetration of water or gas into thewell).B. Repeated perforation of wells with close profile of water -oil displacement, on later stage ofdevelopment, when the profile of oil displacement by water i s closer than 100 m to theproduction well and carrying-out of formation hydraulic fr acturing is risky.C. Selective completion of low permeability interlayers in order to equalize the profile ofinflow for heterogeneous reservoirs.

2. Injection wells:A. To decrease wellhead pressure during agents’ injection i nto the formation.B. To enhance formation covering by the affected area if comp ared to hydraulic fracturing offormation.C. Selective completion of low permeability interlayers in order to equalize the profile ofabsorption for heterogeneous reservoirs.

The advantage over hydraulic fracturing of formation is selective

impact and keeping control of formation development in the

well.

Parameter Value

Well depth, m 1,500

Formation permeability, µm2 0.05

Formation thickness, m 4.0

Water viscosity, mPa s 1.0

Polymeric compound viscosity,

mPa s3.0

Formation pressure, atm 175

Well radius (standard), m 0.1

Well radius (helic.perf.) m 1.0

Feed zone radius, m 200

Well intake rate, m3/day 150

Decreasing wellhead pressure during water

and polymeric compounds injection

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Water Polymeric compound

Standard

perforation

Helicoid

perforation

Standard

perforation

Helicoid

perforation

115.7 88.2 297.2 214.7

Calculation of wellhead pressure, atm.

Application of helicoid perforation

leads to decreasing

Рwh by 25-30%.

Injection producti

on

Formation washed by polymeric compound

Location of polymeric layer in formation

“oil bank”

Enhancement of formation affect covering

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Line of regional stress direction:

optimal

allowable

Favorable variant for

hydraulic fracturing of

formation

Oil displacement zone

Line of regional stress direction:

worst

allowable

Unfavorable variant for

hydraulic fracturing of formationOil displacement zone

Oil displacement zone

When using helicoid perforation

Does not depend on regional stress direction

Market of works for production stimulation

methods

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Share of HRR OPRFOther methods for production stimulation

Market volume of production stimulation and oil production rate enhancement, USD, bln

Dynamics of hard to recover reserves (HRR) and oil production rate of Russian oil fields

Oilproduction

ratefactor

(OP

RF

)

-Plans of oil companies for increasing oil production rate and orientation on hard to recover reserves will stimulate the market-Flooding of market of formation hydraulic fracturing services in the recent years led to prices decreasing-Growth of demand for complex high-tech operations

© 2014 Deloitte & Touche Regional Consulting Services Limited

Sha

reof

hard

tore

cove

rre

serv

es

Patenting

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Patent for helicoid perforation RU

2576269 was obtained on

03.02.2016

International patent

application WO

2016/013960 was published

Next step to patenting

17

Positive decision of World

Intellectual Property

Organization

Going into the

national phase

USA

Canada

EU China

Eurasian

community

Patent landscape

Identify competitors

and reach new niches

Done

In progress

Helicoid LLC

117420, str. Nametkina, bl. 14- 2, off. 613

tel. +7(495) 332-00-50, e-mail: [email protected]

Large scale route chart

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2014 г.2015-2016 г.г.

1-2 стадии

2016-2020 г.г.

3 стадия

1. Mathematical modeling was

performed with tNavigator

simulation program for the

process of oil field development

using the technology.

2. The application for patent

“Method for repeated

completion of the producing

formations using helicoid

perforation” was submitted.

3. The interest in this technology

was confirmed by Gazprom

Neft OJSC and RN-Purneftegaz

LLC.

4. Implementation of basic

technology is carried out at

Barsukovskoye oil field.

1. Development of experimental

prototype of helicoid perforator

(USD 50 ths.)

2. Performance of bench and field

tests of the perforator (USD 60

ths.)

3. Development of self-activating

gel compounds (USD 70 ths.)

4. Carrying-out pilot commercial

development (USD 150 ths.)

1. Patenting helicoid perforator

and gel compounds at

international scale (USA, EU,

China, Canada).

2. Creation of 19 teams in the

internal market and 3 teams in

the external market.

3. Performing up to 1050

processing per year.

Investments: USD 330 ths. Investments: USD 3.5 mln

20142015-2016Stages 1-2

2016-2020Stage 3

Purposes and tasks of the project

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Исследования и

разработки

Коммерциализа

ция

Интеллектуальн

ая собственность

1 этап

(6 мес.)

2 этап

(6 мес.)

3 этап

(1 год)

• Perforator testing using test

bench

• Improvement of perforator

• Testing gels on real core

sample

Patenting helicoid perforation* and

gel compound

Presentation of the technology at exhibitions

and forums, publishing the results of

laboratory researches

Signing the

agreement for

research and

development

• Research and development

work (prototype of helicoid

perforator)

• Creation of test bench

• Development of gel

compound

• Development of

process flow diagram

• Supervision support

of research and

development

Preparation of the

materials for applications’

submittal in the USA, the

EU and China.

Submittal of patent application for

“Method of oil fields development

using complex technology for

formation bottom-hole zone

properties modification”.

*- done

Stage 3(1 year)

Stage 2(6 months)

Stage 1(6 months)

Research & Development

Commerciali-zation

Intellectual Property

Proposal for investors

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Stage

15% of

company

share

49% of

company

share

100% of

company

share

Patent for

helicoid

perforation

Current USD 1.5 mln USD 3.0 mln USD 5.0 mln USD 2.0 mln

After the 2nd

stage- USD 6.0 mln USD 10.0 mln USD 5.0 mln

After the 3rd

stage- USD 10.0 mln USD 20.0 mln -

Investments:

For the 1st -2nd stages – USD 330 ths

For the 3rd stage – USD 3.5 mln

Exit strategy

21Helicoid LLC

Office 613, Building 2, 14 Namyotkina Str., Moscow 1 17420Tel. (495) 332-00-50, e-mail: [email protected]

2010

Geoservices

USD 1.0 blnPetroAlliance OJSCUSD 5 mln + 4.7 mln

shares

2006

2012

Belorusskoye

UNPP I KRS OJSC

2011

Noyabrskneftegaz

Geofizika LLC

USD 65 mln

2014

Baker Hughes

USD 35 bln

2007

Burservice LLC

After creation of the technology (stages 1-2) to invite investments for stage 3

company selling to the strategic investor is proposed.

TEAM

22

Chief of project:Bobylev O. – CEO at Helicoid, author of technology. Author of more than 40 public and handwritten works. Experience in oil industry for more than 17 years.

Previous work – Deputy Director of the Scientific & Engineering Centre of reservoir.

Fakhretdinov R. -Chairman at Helicoid, Doctor of Chemistry, member of Russian Academy of Natural Sciences, professor, author of more than 300

public works and intellectual properties in oil recovery improvement area.

Helicoid LLCOffice 613, Building 2, 14 Namyotkina Str., Moscow 1 17420

Tel. (495) 332-00-50, e-mail: [email protected]

Conclusions and proposals

• Nowadays about 31% of all oil reserves in Russia belong to hard to recover category.

• One of widely used technologies for oil inflow from the formation to the well stimulation is

hydraulic fracturing of formation; it has several disadvantages which prevent involvement of

complex feature objects having active waters or gas caps into development. The technology is

forbidden to use in some EU countries (France, the Czech Republic, Bulgaria, the Netherlands) and

in some states of the USA.

• The technology of helicoid perforation is developed, it considers main effective characteristics of

formation hydraulic fracturing and the possibility of performance under complicated geological-

physical conditions without application of aggressive fluids for formation fracturing and high

pressure units.

• The proposed technology can be used both in producing and injection wells.

• The technology of helicoid perforation is protected by the patent in the Russian Federation,

international patent application was submitted and published (РСТ). Patenting in the USA, Canada,

EU and China is carried out.

• Volume of the required investment into the technology development is USD 330 ths for the 1st

and the 2nd stages (patent selling is possible before starting industrial implementation) and USD 3.5

mln for the 3rd stage.

23Helicoid LLC


helicoid perforation

Technology