russian invention
DESCRIPTION
RUSSIAN INVENTION. Komplex Ltd. - PowerPoint PPT PresentationTRANSCRIPT
RUSSIAN INVENTION
Komplex Ltd. specializes in developing & implementing the methods increasing oil well production rates, namely the technology of secondary opening of productive formation in oil, intake & gas wells by two-sided hydro mechanical slatted perforation. Our Company has long-term experience of working with the well-known big oil companies in Russia & CIS countries. More than 600 oil wells were served during this period.
Our Company has its own production capacities for perforator manufacturing, provides technical & engineering servicing. All manufactured equipment is subject to hydraulic & bench tests in different production conditions.
Our Company has official references & an official record of considerable increase in oil production after two-sided hydro mechanical slatted perforation has been carried out.
This method allows our Customers to get more benefits & make bigger profits, to lower costs and minimize risks.
This method is the leading oil well production rate increasing method according to key figures of method effectiveness and comparing with all the known methods of casing column oil well perforation.
Komplex Ltd. specializes in developing & implementing the methods increasing oil well production rates, namely the technology of secondary opening of productive formation in oil, intake & gas wells by two-sided hydro mechanical slatted perforation. Our Company has long-term experience of working with the well-known big oil companies in Russia & CIS countries. More than 600 oil wells were served during this period.
Our Company has its own production capacities for perforator manufacturing, provides technical & engineering servicing. All manufactured equipment is subject to hydraulic & bench tests in different production conditions.
Our Company has official references & an official record of considerable increase in oil production after two-sided hydro mechanical slatted perforation has been carried out.
This method allows our Customers to get more benefits & make bigger profits, to lower costs and minimize risks.
This method is the leading oil well production rate increasing method according to key figures of method effectiveness and comparing with all the known methods of casing column oil well perforation.
Komplex Ltd.
Additional working holes Allow injection of chemical solutions, fluid swabbing, well development. Additional working holes Allow injection of chemical solutions, fluid swabbing, well development.
Ejectors
Liquid jet shatters the cement sheath under high pressure & washes out
caverns in the nearwellbore zone.
Ejectors
Liquid jet shatters the cement sheath under high pressure & washes out
caverns in the nearwellbore zone.
CONSTRUCTION OF HYDRO MECHANICAL SLATTED PERFORATOR
Slatted perforator is hydro mechanical equipment. Its main parts are 2 cutting discs & 4 ejectors (water jet nozzles).
Firm mill-discs Open out a casing column. Firm mill-discs Open out a casing column.
Positioning of the Hydro mechanical slatted Perforator in the casing column.
Positioning of the Hydro mechanical slatted Perforator in the casing column.
TECHNICAL PARAMETERS OF HYDRO MECHANICAL SLATTED PERFORATOR
EQUIPMENT SIZES
BASICPARAMETER
S
HYDRO MECHANICAL SLATTED PERFORATOR TYPE(HMSP type)
HMSP -102
HMSP -114
HMSP -140
HMSP -146
HMSP -168
HMSP -178
Diameterof casing
column, mm102 114 140 146 168 178
PerforatorOutside
Diameter, mm80 86 110 115 135 145
Thicknessof cutting disc,
mm9 10 10 10 12 12
Connecting thread of
tubing, mm73
Equipment can be easily adjusted. Engineers of Komplex Ltd. can design the equipment adapted for specific parameters of the well.
TECHNICAL PARAMETERS OF HYDRO MECHANICAL SLATTED PERFORATOR
PARAMETERS OF CASING COLUMN OPENING OUT
Ejector parameters
Parameters of technological process
Steel grade of the casing column J55, K55, M65, L80, N80 (API 5 CT)
Tube thickness of the casing column Up to 12 mm
Depth of mill-discs operation out of the casing column Up to 21,5 mm
Working pressure 15 MPa
Maximum pressure Up to 70 MPa
Maximum flow rate at working pressure
8 liters in 1 second
Liquid used for cavern making Technical water, oil, surface acting agents & other
Total interval of formation opening out within one run in hole
Up to 50 meters
Opening out area per 1 running meter of the casing 200-240 cm²
Required time for 1 meter perforation 40-60 minutes
Depth of caverns 0,5-1,5 meters depending on geological structure of a
formation
Associated works during hydro mechanical slatted perforation are: • geophysical methods including positioning & tying in (gamma logging, small-sized
collar locator); • diagnostic operation of the well before hydro mechanical slatted perforation
(шаблонировка ОПЗ) ;• control & well development by swabbing after the works (seisviewer);
Associated works during hydro mechanical slatted perforation are: • geophysical methods including positioning & tying in (gamma logging, small-sized
collar locator); • diagnostic operation of the well before hydro mechanical slatted perforation
(шаблонировка ОПЗ) ;• control & well development by swabbing after the works (seisviewer);
Hydro mechanical slatted Perforator is fixed to the tubing column & is lowered to the planned perforation interval.
Fixing of reference adaptor to the specified perforation interval is conducted by gamma logging which is written after the lowering.
Hydro mechanical slatted Perforator is fixed to the tubing column & is lowered to the planned perforation interval.
Fixing of reference adaptor to the specified perforation interval is conducted by gamma logging which is written after the lowering.
TECHNOLOGICAL PROCESS OF HMSP STAGE 1. POSITIONING OF THE PERFORATOR
Well service & workover crew, including standard equipment, a pump unit with the capacity to build up & hold up the pressure 15MPa during 8-10 hours are required for the conducting of HMSP.
Well service & workover crew, including standard equipment, a pump unit with the capacity to build up & hold up the pressure 15MPa during 8-10 hours are required for the conducting of HMSP.
A Pump unit builds up the initial pressure 1,5-2MPa in the well mouth inside the tubing column, bringing the perforator into the working position, mill-discs thrust against the inside of the production casing.Mill discs force through the production casing & go out of it with to-and-fro motions in the tubing column with Perforator along the Interval in process with the working pressure in the tubing column increasing stepwise. Mill discs create 180º diametrically positioned longitudinal slots. The process of production casing opening out is based on metal plasticization from the forcing in every point & is registered by a weight indicator (hydraulic-weight indicator, electronic weight indicator) or any analogue of this tool.Special working side surface of mill discs makes a physical impact on slot edges by milling work & it excludes slot healing. Thereby, high quality of the production casing opening out is achieved.
A Pump unit builds up the initial pressure 1,5-2MPa in the well mouth inside the tubing column, bringing the perforator into the working position, mill-discs thrust against the inside of the production casing.Mill discs force through the production casing & go out of it with to-and-fro motions in the tubing column with Perforator along the Interval in process with the working pressure in the tubing column increasing stepwise. Mill discs create 180º diametrically positioned longitudinal slots. The process of production casing opening out is based on metal plasticization from the forcing in every point & is registered by a weight indicator (hydraulic-weight indicator, electronic weight indicator) or any analogue of this tool.Special working side surface of mill discs makes a physical impact on slot edges by milling work & it excludes slot healing. Thereby, high quality of the production casing opening out is achieved.
TECHNOLOGICAL PROCESS OF HMSP STAGE 2. COLUMN OPENING OUT
At production casing opening out with OD102mm & OD114mm it’s necessary to notice that there should be some tubing used in the perforation process with beveled couplings because of the small annular gap of the liner. There were no problems either with opening out or with water jet treatment based on experience of working in horizontal wells.
At production casing opening out with OD102mm & OD114mm it’s necessary to notice that there should be some tubing used in the perforation process with beveled couplings because of the small annular gap of the liner. There were no problems either with opening out or with water jet treatment based on experience of working in horizontal wells.
Fluid jet of the ejector washes out the cement sheath & adjacent formation under high pressure 15MPa, creates filtration channels with deep penetrability (>0,5m) & caverns in the nearwellbore zone. High penetrating ability of ejectors is provided by the technology of alternate creating of 2 adjacent filtration channels, eliminating the jet tightness phenomenon which considerably decreases the jet speed & depth of rock destruction.Ejectors orient the jet into the plane of cut slots downward at an angle 75º (two ejectors), also at an angle 90º (two ejectors), against the perforator axis. The run time of pointlike operation is 3-5 minutes & discretisation of descent to the bed floor is 180-200mm.
We recommend carrying out HMSP with chemical treatment of the nearwellbore zone through slatted Perforator for the purpose of a better renovation of fluid penetrating capability in the nearwellbore zone & its cleaning from mudding substances.
Fluid jet of the ejector washes out the cement sheath & adjacent formation under high pressure 15MPa, creates filtration channels with deep penetrability (>0,5m) & caverns in the nearwellbore zone. High penetrating ability of ejectors is provided by the technology of alternate creating of 2 adjacent filtration channels, eliminating the jet tightness phenomenon which considerably decreases the jet speed & depth of rock destruction.Ejectors orient the jet into the plane of cut slots downward at an angle 75º (two ejectors), also at an angle 90º (two ejectors), against the perforator axis. The run time of pointlike operation is 3-5 minutes & discretisation of descent to the bed floor is 180-200mm.
We recommend carrying out HMSP with chemical treatment of the nearwellbore zone through slatted Perforator for the purpose of a better renovation of fluid penetrating capability in the nearwellbore zone & its cleaning from mudding substances.
TECHNOLOGICAL PROCESS OF HMSP STAGE 3. CAVERN INWASH
Outside View
Total opening out area is 0,024 m² per 1 running meter. It’s equal to the area opened by 34 perforation guns with the diameter of feedthrough hole 30 mm. Slots are not healed because of the balanced load metal tension removal. Total capability of opening out for one running in is 50 m.
Outside View
Total opening out area is 0,024 m² per 1 running meter. It’s equal to the area opened by 34 perforation guns with the diameter of feedthrough hole 30 mm. Slots are not healed because of the balanced load metal tension removal. Total capability of opening out for one running in is 50 m.
Inside View
It’s possible to make the opening out in the form of 2 or 4 slots on 1 running meter.
Inside edges of the slot are milled by finned surface of the cutting mill discs & don’t have any burrs.
Inside View
It’s possible to make the opening out in the form of 2 or 4 slots on 1 running meter.
Inside edges of the slot are milled by finned surface of the cutting mill discs & don’t have any burrs.
EFFECTIVENESS OF HMSPCASING CUT BY SLATTED PERFORATOR ON THE TEST BENCH
Strong concrete block was specially made for the tests of the slatted perforator’s ejector effectiveness. This strong concrete block was in permanent stiffening during 1 month & in ideal conditions.
Strong concrete block was specially made for the tests of the slatted perforator’s ejector effectiveness. This strong concrete block was in permanent stiffening during 1 month & in ideal conditions.
Tests were conducted under fluid pressure 15 MPa. Operation time of ejectors was 2 minutes. Cavern was washed out with the depth 0,66 m.
Tests were conducted under fluid pressure 15 MPa. Operation time of ejectors was 2 minutes. Cavern was washed out with the depth 0,66 m.
EFFECTIVENESS OF HMSPCAVERN INWASH IN THE ENGINEERING SAMPLE
Cumulative perforation has been used in world practice for more than 60 years. In spite of it cumulative perforation has some considerable disadvantages:• It exerts destroying influence on the cement sheath. • Lack of steering system (balancing system) brings to
unsatisfactory holes. • There is an opportunity that not all jet charges will be
activated;• Glass is formed because of the cumulative perforation
flow action in the terrigenous rock. This results in the mudding of nearwellbore zone.
• The hole pattern in the production casing is not capable of including the maximum number of fluid conductive channels & well-drainage areas.
Cumulative perforation has been used in world practice for more than 60 years. In spite of it cumulative perforation has some considerable disadvantages:• It exerts destroying influence on the cement sheath. • Lack of steering system (balancing system) brings to
unsatisfactory holes. • There is an opportunity that not all jet charges will be
activated;• Glass is formed because of the cumulative perforation
flow action in the terrigenous rock. This results in the mudding of nearwellbore zone.
• The hole pattern in the production casing is not capable of including the maximum number of fluid conductive channels & well-drainage areas. Hydro mechanical slatted perforation doesn’t have any
disadvantages at all:• This is an absolutely safe technology.• There is no destruction of the cement sheath.• HMSP creates an extensive completion area & spacious
caverns. • HMSP provides the best connectivity of the well &
formation.• HMSP simplifies the operations for production
stimulation & reservoir recovery increase.
Hydro mechanical slatted perforation doesn’t have any disadvantages at all:• This is an absolutely safe technology.• There is no destruction of the cement sheath.• HMSP creates an extensive completion area & spacious
caverns. • HMSP provides the best connectivity of the well &
formation.• HMSP simplifies the operations for production
stimulation & reservoir recovery increase.
Configura
tion o
f fo
rmed c
hannels
in
nearw
ellb
ore
zone in s
latt
ed &
jet
perf
ora
tion.
Configura
tion o
f fo
rmed c
hannels
in
nearw
ellb
ore
zone in s
latt
ed &
jet
perf
ora
tion.
HYDRO MECHANICAL SLATTED PERFORATION - HMSP
THE LEADING TECHNOLOGY OF WELL PERFORATION
Comparison of slatted perforation with cumulative perforation Comparison of slatted perforation with cumulative perforation
* When a standard perforator with 12 jet charges per 1 ft is used & all charges are successfully activated.
HYDRO MECHANICAL SLATTED PERFORATION - HMSP
THE LEADING TECHNOLOGY OF WELL PERFORATION
According to key parameters of method effectiveness HYDRO MECHANICAL SLATTED PERFORATION is considerably superior to all the known methods of
casing column oil well perforation.
According to key parameters of method effectiveness HYDRO MECHANICAL SLATTED PERFORATION is considerably superior to all the known methods of
casing column oil well perforation.
Parameter
2-slatted Hydro
Mechanical Perforation
4-slatted Hydro
Mechanical Perforation
Jet charge type Big
Hole
Jet charge type Deep
Penetration
Completion area per 1 running
meter of casing column
0,02 – 0,024 m²
0,04 – 0,048 m² 0,0053 m² * 0,0022 m² *
Depth of penetration into
formation0,5-1,0 m 0,5-1,0 m 0,15 m 0,75 m
Configuration of entrance hole
Slot width 10-12 mm
Slot width 10-12 mm
Hole with the diameter
up to 23 mm
Hole with the diameter
up to 12 mm
Fugacity NO NO Very high High
HYDRO MECHANICAL SLATTED PERFORATION – HMSP
QUALITY CONTROL BY SEISVIEWER METHOD
Previously conducted cumulative perforation
left some unsatisfactory openings & local
inflations
Previously conducted cumulative perforation
left some unsatisfactory openings & local
inflations
Cumulative perforation result
Cumulative perforation result
HYDRO MECHANICAL
SLATTED PERFORATION
RESULT
HYDRO MECHANICAL
SLATTED PERFORATION
RESULT
The result of the Interpretation of the seisviewer method with the aim to control the hydro mechanical slatted perforation intervals. Embossed
model.
The result of the Interpretation of the seisviewer method with the aim to control the hydro mechanical slatted perforation intervals. Embossed
model.
HYDRO MECHANICAL SLATTED PERFORATION - HMSP
MAIN ADVANTAGES OF HMSP TECHNOLOGY • No percussion impact on the column.• Preservation of the cement sheath integrity above and below the
perforation interval.• Metal compression stress is removed during the simultaneous
forming of two diametrically positioned cuts, which totally excludes the chance of the perforation cuts closing and healing.
• Opening unit area of 1 running meter of the casing column is 12-14 times larger than with standard cumulative perforation.
• Mill-discs move out of production casing for more than 20mm, which сan facilitate considerable shattering.
• Nearwellbore treatment by opening out liquid including chemical acid treatment under pressure through water jet nozzles with 0,5-1,5m penetration into the formation depending on the geological structure of the productive formation.
• An opportunity of well development by swabbing without the lifting of the perforator.
• An opportunity of flowing well operation through perforator till nearest repair.
• An opportunity of the offshoot & horizontal well opening out.
• No percussion impact on the column.• Preservation of the cement sheath integrity above and below the
perforation interval.• Metal compression stress is removed during the simultaneous
forming of two diametrically positioned cuts, which totally excludes the chance of the perforation cuts closing and healing.
• Opening unit area of 1 running meter of the casing column is 12-14 times larger than with standard cumulative perforation.
• Mill-discs move out of production casing for more than 20mm, which сan facilitate considerable shattering.
• Nearwellbore treatment by opening out liquid including chemical acid treatment under pressure through water jet nozzles with 0,5-1,5m penetration into the formation depending on the geological structure of the productive formation.
• An opportunity of well development by swabbing without the lifting of the perforator.
• An opportunity of flowing well operation through perforator till nearest repair.
• An opportunity of the offshoot & horizontal well opening out.
HYDRO MECHANICAL SLATTED PERFORATION - HMSP
RECOMMENDATIONS FOR THE APPLICATION
HYDRO MECHANICAL SLATTED PERFORATION - HMSP
RECOMMENDATIONS FOR THE APPLICATION• Perforation of production casing with outside diameter 102, 114, 140,
146, 168, 178, 194 mm.• Wells after squeeze cementing.• Wells after well boring.• Wells with inadequate quality of the cement sheath.• Wells with closely located water bearing stratums and oil-water
contacts. • Use of slatted perforation before hydraulic fracturing of formation.• Use of slatted perforation in injection wells.• Repeated slatted perforation after cumulative perforation.• Use in the wells with decreasing production rate as the result of the
bottom-hole formation zone mudding.• Well perforation before contingency cementing operation.• Perforation of the wells used for waste disposal.• Perforation of the wells used for underground gas storage. • Wells with high content of asphaltene, resin and paraffin deposits,
wells with sticky oil, when specific dissolvent or heated opening out liquid are used.
• Perforation of production casing with outside diameter 102, 114, 140, 146, 168, 178, 194 mm.
• Wells after squeeze cementing.• Wells after well boring.• Wells with inadequate quality of the cement sheath.• Wells with closely located water bearing stratums and oil-water
contacts. • Use of slatted perforation before hydraulic fracturing of formation.• Use of slatted perforation in injection wells.• Repeated slatted perforation after cumulative perforation.• Use in the wells with decreasing production rate as the result of the
bottom-hole formation zone mudding.• Well perforation before contingency cementing operation.• Perforation of the wells used for waste disposal.• Perforation of the wells used for underground gas storage. • Wells with high content of asphaltene, resin and paraffin deposits,
wells with sticky oil, when specific dissolvent or heated opening out liquid are used.
HYDRO MECHANICAL SLATTED PERFORATION - HMSP
FAILURE-PROOF CONDUCTING OF HYDRAULIC FRACTURING OF
FORMATION When HMSP is used before hydraulic fracturing of formation, due to the firm
hydromatic bond:
• Hydraulic resistance decreases considerably during propping agent injection on
the border well – formation.
• Any emergency stopping because of slatted perforation during injection of
different fractions of propping agent is excluded.
• Conditions are provided for the use of coarse propping agent fractions.
• Conditions are provided for the execution of works with high concentration of
propping agent.
• Conditions are provided for the execution of works with high-speed propping
agent injection.
• Conditions are provided for the execution of works in horizontal wells &
directional wells.
• Conditions are provided for selective Hydraulic fracturing of formation after
squeeze job.
When HMSP is used before hydraulic fracturing of formation, due to the firm
hydromatic bond:
• Hydraulic resistance decreases considerably during propping agent injection on
the border well – formation.
• Any emergency stopping because of slatted perforation during injection of
different fractions of propping agent is excluded.
• Conditions are provided for the use of coarse propping agent fractions.
• Conditions are provided for the execution of works with high concentration of
propping agent.
• Conditions are provided for the execution of works with high-speed propping
agent injection.
• Conditions are provided for the execution of works in horizontal wells &
directional wells.
• Conditions are provided for selective Hydraulic fracturing of formation after
squeeze job.
This technology is commonly implemented on production well stock & injector well stock, during perforation before hydraulic fracturing of formation. There is a considerable increase in the oil inflow to the surface as a result of HMSP. There is a considerable increase in the production rate up to the initial value as a result of secondary perforation. Increase in the well water-intake capacity & decrease in the working pressure of formation fracture are very typical during opening out before Hydraulic fracture of formation. All figures & facts are confirmed by references & summaries provided by authoritative experts & oil companies which have been using the technology of HYDRO MECHANICAL SLATTED PERFORATION successfully.
HYDRO MECHANICAL SLATTED PERFORATION - HMSP
THIS IS THE MOST RELIABLE DECISION
Komplex Ltd.Opalihinskaya street 42 – 2.2, Ekaterinburg city, RussiaTel/fax: +7-343-344-32-09, [email protected]