KAMK is designed for geophysical investigations of vertical and directional wells till 2500 m, which were drilled for searching and prospecting of solid minerals (ore, coal), underground fresh water, engineering- geological studies.
The base of KAMK consists of:
- “GEKTOR” or “VULKAN-V3” digital register, which provides gathering, storage and data processing;
- pulling and running equipment with drive unit and technological gauges;
- the package of downhole tools of serial and individual production under technical requirements of a customer;
- means of metrological control;
- the package of technological and application programmes;
- on-board computer of Notebook type.
All equipment elements and measurement units are installed in special body on chassis of the following automobiles as UAZ-452, Gazelle 4×4, GAZ-3308 Sadko, ZIL-131, URAL_4320, KamAZ-43114/43118, tracked gross-country vehicle MTLBu, GAZ-34039 and etc.
Features and Advantages:
- the possibility of well logging performance using the equipment of analogue type (old park) and modern digital software-controlled apparatus by all without exception logging methods;
- well-developed technological software, which represents a possibility of AMK versatile operation and downhole tool functioning in different operation modes (measuring transducer calibration, registration system certification, standardization and information recording);
- the possibility of parameter visual control during measurements and downhole tool automatic operation mode under control of on-board computer;
- full metrological provision of measuring tools by means of field calibrator, environment simulator, standard-signals;
- relative absorption simplicity and serving of KAMK, exploitation reliability;
- full application software for initial processing of result measurements according to all methods of well logging;
- comfortable operation conditions for personnel, which is provided by use of thermal car body, salon conditioning, rational arrangement of equipment;
- efficiency of KAMK apparatus according to GSM owing to diesel base autocar and diesel electricity generating station.
KAMK Explosionproof Variant
Computerized apparatus-and-method complex (KAMK) “Almaz-1” is designed for geophysical well logging, drilled in trunks and minings, which are dangerous by gas and oil, for search and solid
field development. “Vulkan” digital register, personnel computer, liquid-crystalline, no- break power source are packed in exploisionproof control boxes (PB EXDL IP66 protection class).
Specifications
|
“Vulkan” Register |
|
|
AD converter, channel/grade |
8/12 |
|
Minimal conversion time, mksec |
12 |
|
Power source: I max., А U max., В |
0.5 150 |
|
BU-150 Logging Winch |
|
|
Winch reel capacity (for rigid cable at a diameter of 10 mm), m |
150 |
|
Winch weight together with cable, kg |
43 |
|
Overall parameters, mm length width high |
up to 110 up to 45 up to 110 |
|
Personal Computer |
|
|
Monitor, inch |
14 |
|
Intel processor, Hz |
1.5 |
|
Random-access memory, GB |
2 |
|
Hard disk, GB |
250 |
* KAMK explosionproof variant has GOST R correspondence certificate and permission of Russian State Technical Authority on use on hazardous facility.
“GEKTOR” DIGITAL REGISTER
“Gektor” register is designed for digital recording of well logging data into the memory of on-board computer with simultaneous visual operational quality control of recorded information. The register is a specialized device of data gathering, its initial processing and output in the shape of diagrams by means of plotter. Scale and form are given by a user.
“GEKTOR” Complete Set Includes:
- base register with connection modules (module of radioactive logging, module of slow AD converter, module of fast AD converter; KIM-VIM module (Manchester-2), module of technological AD converter and etc.;
- logging control block;
- oscillograph;
- thermal plotter;
- downhole tool power supply unit;
- Notebook computer.
Specifications
|
Volume of working memory, MB |
from 1 |
|
Quantity of connectors (slots) for installation of connection modules with downhole tool |
up to 6 |
|
Exchange of data between the register and on-board computer |
through RS-2 interface (through COM1 and COM2 ports) |
|
Register operation mode |
with multiple switching on and switching off |
|
Power, consumed by the register, W |
not more than 200 |
|
Quantization interval according to depth, sm |
>1 |
|
Upper limit of downhole tool location depth indication, m |
9999,99 |
|
Pressure level of constant current incoming signals, V |
up to ±5 |
|
The number of constant current information channels |
16 |
|
Frequency of bit changing in KIM-VIM module code sequence, kHz |
not more than 82,5 |
|
Amplitude of KIM-VIM module output pulses, V |
not less than 0,5 |
|
Duration of incoming pulses, mks |
not less than 10 |
|
Minimal time of fast AD converter module, mks |
not more than 2 |
|
Volume of buffer memory, Kb |
not less than 60 |
|
Thermoplotter page width, mm |
222 or 216 |
|
Thermoplotter resolution, points/mm |
8 |
|
Speed of printing, lin/sec |
10 |
DIGITAL REGISTER “VULKAN V3”
“VULKAN” Digital register is designed for information reception from downhole geophysical equipment and its conversion into digital form.
“VULKAN V3” register is a modern realization of “GEKTOR” register and includes all possibilities of “GEKTOR” with addition of new functions.
Application Field: surface equipment at geophysical investigation of drilled, controlled, injected, stopped and producing wells using downhole equipment.
It allows to connect one, two, three-core downhole tools with power supply by constant current up to 150V, 0.5 A. If there are outer power supply sources with supply by alternative current up to 50Hz, 200 – 400 Hz and constant current up to 300 V, 1 A.
“VULKAN V3” register complete set includes:
- downhole tool software-controlled power supply source;
- commutation unit: provides various standard schemes of downhole tool connection, connection of outer power supply sources and also disclosing-closing control by constant current;
- interface with gauges of depth and magnetic marks: provides depth gauge with power supply (+12V, +5V), signal receipt and decoration from depth gauge in TRIAS, KARAT, PetroAl’yans formats, arbitrary coefficient of depth pulse recalculating in sm;
- decoration unit of information from downhole tools;
- interface with a computer.
Specifications
|
Impulse signal random stream registration channels |
|
|
The number of channels |
6 |
|
Frequency of incoming signal, kHz |
up to 50 |
|
Amplitude of incoming signal, V |
-0.5…-10 +0,5…+10 |
|
Channels of Analog-to-Digital Conversion for Reception of Slowly Changing Signals |
|
|
The number of channels |
8 |
|
Frequency range of incoming signal, Hz |
0-100 |
|
Amplitude of incoming signal, V |
-5…+5 |
|
Dynamic range, dB |
from 80 |
|
Error, % |
up to 0,01 |
|
Channels of Analog-to-Digital Conversion for Reception of Slowly Changing Signals |
|
|
Frequency range of incoming signal, Hz |
1-100 000 |
|
Amplitude of incoming signal, V |
-5…+5 |
|
Dynamic range, dB |
from 70 |
|
Error, % |
up to 0,1 |
|
Channels of Depth Signal Reception |
|
|
Amplitude of incoming signal, V |
not less than 2.5
|
|
Frequency of incoming signal, Hz |
up to 1000 |
|
Error, % |
up to 0.01 |
|
Built-in Power supply source pressure regulation range, V |
0-150 |
|
Built-in Power supply source current regulation range, A |
0-5 |
|
Interface with driven computer |
USB |
|
Electric Power Supply Specifications |
|
|
Pressure of supply net, V |
180-240 |
|
Frequency of supply net, Hz |
49-51 |
|
Power, consumed from net, Wt |
up to 150 |
|
Specifications of Environment Conditions |
|
|
The range of operating temperatures °С |
+10…+45 |
|
Upper meaning of relative humidity at 30°С, % |
95 |
|
Weight, kg |
up to 15 |
|
Dimensions: height x width x depth, mm |
94x437x520 |
PULLING-AND-RUNNING AND SERVICE EQUIPMENT
Includes:
- hoist with mechanical or electrical drive;
- automatic cable layer;
- electrical collector;
- up to 2500 m of any cable type;
- instrumental panel of pulling-and-running operations;
- counter-weight with selsyn motor and gauge of magnetic sticker;
- well head assembly;
- scrolling device.
Specifications of Pulling-and-Running Operations
|
Maximum traction power on first two ranges of cable coiling on winding hoist drum, H |
from 5000 |
|
|
The speed of downhole tool pulling-out, m/h
|
minimum |
20 |
|
At mid-diameter of coiling on hoist, m/h |
maximum |
2300 |
|
Electro motor power consumption, W |
up to 2.5 |
|
|
Logging cable movement speed control |
manual or automatic |
|
|
Counterweight arrangement |
with selsyn motor and DMG-2 sticker gauge on well collar or LOT-4 on hoist cable layer |
|
ELECTRIC POWER EQUIPMENT
It provides line or self-contained power supply of all KAMK blocks by alternating nonstabilized current of commercial frequency. Electric power equipment contains:
- diesel electrical generator 4, 2 kW in power;
- complex power block.
“BATYR” power block provides stabilized alternating voltage: 220 V – 5 A; 127 V – 5 A; 110 V – 3 A; 36 V
– 2 A. It provides output voltage automatic stabilization. It has digital display, mode of manual regulation, plain and convenient calibration.
Voltage 12 V is used for inner illumination of KAMK, rear view headlamps and loudspeaker device.
POWER SUPPLY OF CONSTANT CURRENT
“GEKAT-300-1” power supply unit is designed for downhole tools supply by stabilized voltage or current.
Basic Specifications
|
Inlet voltage 50 Hz in frequency, V |
220 |
|
Outlet energy of power supply up to 300 W in voltage stabilization mode or in stabilization mode up to 1 A, W |
300 |
|
Power supply outlet current instability in voltage stabilization |
up to 1 % |
KAMK DOWNHOLE TOOL
Any type of downhole tools, which fit in form and level of inlet signals to “GEKTOR” register specifications can be used in order to investigate wells in composition of “KAMK- ALMAZ-1”.
Measurement unity is provided by using metrological checking means and calibration tests.
Downhole tool technical-metrological characteristics, which are more commonly used for investigation of ore, coal, hydrogeological, engineering-geological and engineering-exploitation wells.
KAMK-“ALMAZ-1” TECHNOLOGICAL AND APPLICATION SOFTWARE
Complex functioning in different technological modes is realized under control of on-board computer. Developed system software, which realize downhole tool calibration, registration digital system testing, tool standardization, information record in measurement mode. Moreover, system programs provide visualization, preliminary fragmentary review of information collection and its registration on flexible and hard computer discs. Programs are functioning in dialogue mode, that allows operator to choose measurement technology for every downhole tool through “Menu” also it allows to enter necessary office information about well and tool, organize data record in separate file and processed information delivery in form of diagrams, LAS-format and etc.
Initial method by method measurement data processing is realized with use of full package of application programs. The last comprise programs of initial data editing, calculation of petrophysical and analytical parameters according to every method, estimation of measurement quality by coincidence of test signals and reproducibility of basic and control diagrams, calibration coefficient calculation, measurement quality determination according to calculations mean-square nominal error for required parameters.
Moreover, there is a service packet of programs for data reduction to single step of quantization according to depth, reduction to single record, compression and expansion point of time scale, correction according to magnetic marks, settlement of dimensions and quantity of fields for plotter, type of derivable curves, their displacement and other functions.
THE MEANS OF METROLOGIC CHECK AND DOWNHOLE TOOL CALIBRATION
|
No. |
Types of downhole tools |
Controlled parameter |
Means of checking and calibration |
|
1 |
2 |
3 |
4 |
|
1 |
Gamma-ray downhole tool |
S, imp/mkr/hour Integral nonlinearity |
Ra-226 gamma-quantum source
|
|
2 |
Density and selective gamma- and gamma ray logging tools calibrator
|
Effective values of density and Zef
|
Two field calibrators of density effective atomic number; inner frequency |
|
3 |
Neutron-neutron and neutron gamma-ray logging tools |
Density effective values Kef, % |
Container with fresh water and two porosity imitators; interior frequency calibrator |
|
4 |
Spectrometric gamma-ray logging tool |
U, Th, K effective contents |
U, Th, K, background and ERE mixture; interior frequency calibrator |
|
5 |
X-ray logging tool |
Elements content |
Tree field calibrators of i element content; interior frequency calibrator |
|
6 |
Electrical logging tools |
Resistivity effective values |
Resistance box, imitators of homogeneous environments, standard-signals |
|
7 |
Magnetic susceptibility logging tools |
S, imp/min/10-5 SI Measurement range linearity |
Three calibrators of magnetic susceptibility with different values of “g”, interior frequency calibrator
|
|
8 |
Acoustic logging tools |
Speed of P wave |
Environment imitator (steel column) |
|
9 |
Caliper gauge |
∆dc, mm, linearity in d well measurement range |
Calibration ring 50÷250mm (5 pieces); interior standard-signal |
|
10 |
Thermometer
|
S, mb/1°C, linearity in the range of measured temperature |
Thermostat, certified thermometer, interior standard-signal
|
|
11 |
Flow indicator |
S, imp/min/litre Range linearity |
Well imitator with axial flow, measuring container. Interior standard-signal |
|
12 |
Electro-magnetic thickness indicator |
∆dk, mm |
Steel pipes of different diameter and wall
|
|
13 |
Resistivity meter |
S, imp/min/1 sm/m Range linearity |
Na Cl aperture of different concentration, interior standard-signal |
“KAMK-ALMAZ-1” Software Functional Opportunities
“KAMK-ALMAZ-1” Functional Opportunities on the Stage of Initial Processing of Well Logging Data
