PODZEMGAZPROM
Address: Kurchatov sq. 1, bild. 333, Moscow, 123182, Russia
Tel.: +7 (495) 196-75-24, 196-77-59; Fax: +7 (495) 196-17-04
E-mail: pdzmgz@tsr.ru
THE PRODUCTS MANUFACTURED:
UNDERGROUND RESERVOIR SHAPING CONTROL UNIT
DEVICE FOR ROCK BEHAVIOR SIMULATION IN A BOTTOM WELL SECTION
IMPULSIVE ELECTROMAGNETIC LEVEL GAUGE
CUTTING-OUT DEVICE WITH A REAMER
TELEVISION UNIT FOR UNDERGROUND STORAGE WELL CONDITION CONTROL
BRINE PARAMETERS AUTOMATIC CONTROL SYSTEM
ARGUS SOUND FIXING AND RANGING COMPLEX
HYDRAULIC REMOVABLE INTERSTRING PACKER
UNDERGROUND RESERVOIR SHAPING CONTROL UNIT
- Real-time information on working media level in an underground reservoir.
- Measurements are carried out without shutting down the technological cycle.
- Stationary position of the measuring blocks in technological column.
- Control over dynamics of the development of working - reservoir with correction of technological parameters of the structure, computerized processing of the data.
1 - Communication line
2 - Surface data processing block
3 - Downhole measuring unit
Reservoir shaping process is controlled by regular change of active washing-out zone through adjustment of the brine - nonsolvent interface level.
The device is designed in block arrangement and includes the following elements:
Surface block carries out registration and processing of the data received.
The device ensures distance measuring in the range of 0.5 - 50 meters with relative error of 1%. The downhole block and communication line assume long-term operation in specific conditions of underground reservoirs; the device remains functional in ambient temperature as high as +60 °C and under hydrostatic pressure up to 15.0 MPa.
DEVICE FOR ROCK BEHAVIOR SIMULATION IN A BOTTOM WELL SECTION
1 - upper stop
2 - upper traverse
3 - main bush
4 - stop flange
5 - die
6 - sealing sleeve
7 - grid
8 - perforated pipe
9 - hole 12.2 mm M12x1.25
10 - coupling
11 - casing
12 - sample 41x90x100 mm
13 - lower stop
14 - lower die
15 - lower traverse
16 - packer
The device is a fragment of "a casing pipe - enclosing rock" system made in the 1:40 scale; it is intended for rock circular sample testing under tri-axial adjustable compression with simultaneous gas blowing.
Main technical parameters:
Maximum standardization of the device assumes its usage with the loading system of the UIPK-1 m serial unit.
The design of the device allows simulating sand recovery conditions in a well drilled in an unstable reservoir with abnormally high reservoir pressure.
IMPULSE ELECTROMAGNETIC LEVEL GAUGE
High-precision multi-channel electromagnetic level gauge is designed for dynamic registration of the level of gas - water interface or two and more liquid media with different parameters of electromagnetic signal propagation (with different dielectric constants), for example, water solution - petroleum product interface.
1 - transmission cable
2 - measuring block
3 - reference main bang pulse
4 - reflection time
5 - petroleum product
6 - NaCl solution
7 - open-end two-wire circuit
OPERATING PRINCIPLES:
Operating principles are based on media sounding with the help of narrow electromagnetic pulses propagating along transmission line which is in electromagnetic connection with environment; the line is placed in the reservoir under control. Sounding is carried out through sending pulses of nanosecond duration into the line followed by measurement and analysis of characteristics of the pulses reflected from irregularities brought about by the changes in parameters of surrounding environment. Accurate measurement of the time lag of pulse reflection from the media interface is carried out through the use of mathematical treatment algorithm optimized for specific operating conditions of the device. Display of the data on absolute level or relative change in position of the media interface is realized in graphical and analytic form convenient for an operator, in line with indication of the measurement channel number (number of reservoir, tank), date and time of the measurement. In automatic regime, the device carries out step-by-step measurements of level in a number of reservoirs (measurement channels used) with pre-set intervals and automatic registration of the results; the results may be displayed both in graphic and analytic form characterizing the dynamics of level alterations.
The device includes a transmission line, which is in electromagnetic contact with surrounding medium and located in operating space (reservoir, tank), a measurement unit connected with transmission line through coaxial cable, and PC-based control desk servicing one or more measurement channels.
Specifications:
Level measurement range: 0 - 150 m.
Maximum distance between the measurement block and measurement line (measurement zone): up to 1,000 m.
Relative error in measurements of media interface position (level) - 2-5 cm, depending on the type of medium and the distance to measurement zone.
Maximum distance between the control desk and measuring block is up to 1,000 m. Data transfer is carried out through the RS-232 standard interface.
Design mean time between failures of the measuring block is not less than 10,000 hours.
Overall dimensions of the measurement block with a built1in pulse generator - 165x180x400 mm. As may be agreed with a customer, the measuring block may be enclosed in airtight thermostatic container, which maintains operating temperature of the block in the range of -50 - +40 °C, with air relative humidity up to 100 %, and is resistant to climatic influences.
Power supply of the system is from 220 V ac mains or 12 - 14 V dc transformer. Maximum power intake is not more than 100 W.
FIXING SAMPLER (FS)
FS is for product storage quality control plus reliable well operation.
Down-hole equipment is intended for safe operation of underground storage facilities in rock salt.
Specifications:
Storage facility depth: 400 - 1500 m
String relieving force at seating the lock: 400 - 600 kg
Number of samples extracted - 3
Space isolation in sampling is carried out with a packer or adjustable valve
Length, m
- lock: 2.3 - 2.5
- valve: 0.5
- packer: 0.4
Nominal diameter, mm:
- lock: 168
- valve: 55
- packer: 196
Weight, kg:
- lock: 110
- valve: 2.5
- packer: 16
CUTTING-OUT DEVICE WITH A REAMER
The UV 250 cutting-out device with P-400 reamer ensures low-cost extension of service life of wells in underground storage facilities. The device is intended for cutting out sections of casing pipes followed by the hole reaming in the process of well work over at underground storage facilities in rock salt.
Specifications:
Body diameter: 250 mm
Diameter by guides, mm, max
- for 299 mm columns: 268-1.3
- for 324 mm columns: 292-1.3
Diameter by unfolded cutters, mm, max
- for 299 mm column: 240 ± 2.8
- for 324 mm column: 365 ± 2.8
Diameter by unfolded reamer blades, mm, max: 400 ± 2.8
Length: 2,260 mm
Weight of delivery set: 550 kg
Axial load on cutters, kN, max: 40
Axial load on reamer blades, kN, max: 20
Speed of rotation, within the range: 0.5 - 1.5
Drilling mud pumped: 0.012 - 0.020 m3/s
Working medium temperature, °C, max: 100
Pressure drop at the device: 2 - 4 MPa
Average mechanical cutting-out speed, m/h, min: 0.3
Average footage per set of cutters, pipe made of D-group steel, wall thickness 12.4 mm
- for 299 mm column: 1.2
- for 324 mm column: 1.0
Average footage per a set of cutting blades, m, min:
- soft rock : 40
- medium rock: 20
- hard rock: 5
CUTOFF VALVE
The valve is intended for well instantaneous shut off, prevention of gas blowout and protection of the environment.
The KOU 219/146-21 wellhead surface-controlled cutoff valve is designed to prevent gas blowouts in emergency in technological wells by way of automatic shutting off the pipe space of flow string.
Specifications:
Working medium: gas
Working medium pressure in underground storage facility, MPa (kg/cm2), maximum: 21 (210)
Gas withdrawal: 150,000 m3/h
Operating medium temperature: 50 °C
Ambient temperature, °C : -40 ... +50
Diameter of a string to be shut off, central / outer flow string, mm: 146 / 219
Maximum weight of stuck string: 44,000 kg
Maximum specific control pressure at the inlet of cutoff valve, MPa (kgf/cm2): 30+1 (310+1)
Cutoff valve connecting thread: OTTG GOST 632-80
Overall dimensions, length x diameter, mm: 1300 x 188
Weight, kg, max.: 135
TELEVISION UNIT FOR UNDERGROUND STORAGE WELL CONTROL
Application:
Main technical characteristics
The unit is intended for evaluation of technical condition of wells and underground storages, as well as for evaluation of cementing quality in the process of contaminated radioactive brine solidification, when underground reservoirs are being shutted-in. A pilot device has been developed on the basis of serial geophysical equipment intended to ensure running1in and lifting of TV- unit with the help of logging cable.
JET COUNTERFLOW DEVICE
The ASP jet counterflow device helps to reduce construction time and improve underground storage architecture.
The ASP device is intended to intensify the process of underground storage formation and shaping in rock salt. It extends the brine-mixing zone and at the same time prevents penetration of submineralized solvent to the ceiling of underground chamber; as a result, technological consumption of nonsolvent is reduced significantly or eliminated completely.
Specifications:
Working medium throughput: 40 - 100 m3/h
Working medium pressure: 7 - 18 MPa
Injected medium throughput: 20 - 100 m3/h
Injected medium pressure: 5 - 16 MPa
Injection factor: 0.5 – 1
Temperature in underground storage: 5 - 50 °C
Working medium: process water
Injection medium: NaCL solution
Length of the device with centralizer in assembly: 1600 mm
Coupling thread (GOST 632-80): to outer suspended string / to central suspended string: OTTM 219 / OTTM 146
Weight of the device: 100 kg
BRINE PARAMETERS AUTOMATIC CONTROL SYSTEM
The IKAR-K05 automatic control system is for continuous measuring of the brine parameters:
- temperature
- pressure
- concentration
- brine consumption
It may be used for measuring of the above parameters with pre-set discreteness in the brine flow in the process of underground storage construction in rock salt deposits, in particular, when five underground storages are under construction simultaneously.
Measuring block of the system may be installed at a distance of 4,000 m from secondary sensors.
The purposefully developed software ensures real time calculation of volume of the storage and the data display in graphical form.
Automatic system measuring range:
- Temperature: 5 - 36 °C.
- Specific electric conductivity: 1 - 25 Cm/m.
- Excessive pressure: 0 - 2.5 MPa.
- Concentration (for two measurement ranges): wide / narrow: 5 - 317 / 240 - 317 g/p.
- Consumption: 30 - 300 m/h.
- Measurement discreteness, not less than 10 measurements/sec.
- Relative error in concentration calculation, % of brine - ±1.0.
The brine parameters automated control system is characterized by the following:
- wide range of functional capability
- small overall dimensions
- easy in maintenance
- high metrological indices.
ARGUS SOUND FIXING AND RANGING COMPLEX
Application:
Through-well examination of underground working configuration, working being filled with industrial water, brine or liquid petroleum products (underground storages, brine recovery chambers, flooded mine workings).
The complex includes:
- surface control block (NBU) - 1
- downhole instrument (SP) - 2
- PC - 1
- examination and data processing software - 1
Specifications:
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KG-3-40-190 logging cable length, max |
2,000 m |
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Complex provides for registration and display of all reflected signals within operating range:
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Resonance frequency of scanning, inclined and bottom sensors, kHz |
320 |
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Operating pressure:
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Ambient temperature, °C
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Overall dimensions:
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Weight, kg:
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Power supply from ac mains:
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Power consumption, W |
500 |
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Receiver sensitivity:
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Clock pulse (CP) repetition frequency, ms:
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CP duration change range, mcs:
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CP carrier frequency change range, kHz |
270...420 |
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Cross-section determination interval, min |
2 |
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Absolute error of time interval measurement in sound velocity determination, mcs. |
2.1 |
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Relative error of distance calculation along location axis, % |
0.77 |
HYDRAULIC REMOVABLE INTERSTRING PACKER
The packer ensures long service life and reliability of underground storage technological well operation.
The PGS 219 packer is intended for partitioning the interstring space between the main casing string and flow string so that to provide protection of the main casing string.
Specifications:
Maximum pressure drop: 21 MPa
Control pressure at the packer installation: 12 - 16
Main casing string diameter: 299 mm
Flow casing string diameter: 219 mm
Operating medium temperature, °C, max.: 100
Duct diameter, mm, min.: 184
Outer diameter, mm, max.: 266
Length in operating position / in transport position, mm: 1,870 / 1,985