HTHP Shale Swell Meter Shale Tester HTP-3A

HTHP Shale Swell Meter Shale Tester

Description:

In petroleum exploration engineering, water absorption and expansion of shale formations are one of the main factors affecting wellbore stability. The HTP-3A high-temperature and high-pressure shale expansion instrument overcomes the shortcomings of various commonly used room

temperature and pressure expansion instruments at home and abroad. It can simulate the downhole temperature and pressure difference conditions well, test the hydration expansion characteristics of shale, and select the anti collapse drilling fluid formula, making the test results closer to the actual downhole situation. At the same time, this instrument can also be used as a normal temperature and pressure expansion instrument. This instrument is connected to a computer using advanced technology, and its sampling data and expansion curve are displayed on the screen at a glance, filling in a blank for this field.

Characteristic:

The HTP-3A high-temperature and high-pressure shale expansion instrument can effectively test the hydration expansion characteristics of shale

under temperature (≤ 120 ℃) and pressure difference (3.5MPa) conditions, providing a testing tool for the stability research, evaluation, and optimization of anti collapse drilling fluid formulations for petroleum drilling walls. It can be used in fields such as oil recovery anti expansion agent evaluation, geology, and soil science. The instrument is designed reasonably and has a high degree of automation

Main technical indicators:

1. Power supply: 220 ± 5% 50Hz

2. Gas source: Nitrogen (or compressed air) 5MPa

3. Working temperature: ≤ 120 ℃

4. Work pressure: 3.5MPa

5. Test range: 25mm

6. Measurement resolution: 0.001mm

7. Comprehensive measurement error:<5%

8. Sample mold inner diameter: ø 25mm

9. Instrument working environment: -15 ℃ to 40 ℃

Instrument structure

1. Host: Heating device, temperature control device.

2. Main test cup: grid sensor, injection cup, rock sample mold, cup body

3. QG-60 high-pressure manifold (2 gas pipelines).

4. Computer

Working principle:

Load the compressed rock sample (together with the compression mold) into the main test cup, heat the main test cup to the set temperature through a heating device, and then press the test solution into the test cup and into contact with the sample surface driven by air pressure, and apply pressure until the initial signal is recorded. At this time, the axial displacement signal of the sample is sensed by the capacitive grid sensor through the guide rod, and the expansion amount and expansion curve are displayed on the screen through the computer system.

Installation and connection of each part:

1. Host connection: Place the computer host on the experimental platform. Connect the USB port of the computer to the RS232 port of the host, connect the host to the temperature sensor signal line, and connect the host to the capacitive grid sensor signal line (5-pin). Connect the power supply again.

2. Connection between manifold and gas cylinder: Install the QG-60 manifold component onto the gas cylinder and secure it with a G5/8 nut.

Operating procedures and precautions：

Turn on the power switch and set the heating temperature (≤ 120 ℃ according to user requirements).

1. Operation of temperature controller:

⑴. After connecting the power, press the "switch" button, and the temperature control display window will show lnP, indicating the input type. The division mark will be displayed for 1 second,

After another 1 second, the upper limit of the measurement range will be displayed, followed by the lower limit of the measurement range. After another 1 second, the measurement value will be displayed, entering normal working mode.

⑵. Setting of temperature target value: Press the SET key to switch the display window from the measured value to the set value. Press the ▲ and ▼ keys to display the required value in the SV window, and then press the SET key to return to standard mode. (Automatically returns to standard mode after 20 seconds of no typing action). Start heating at this point.