Mobile oil and gas continuous metering device

Overview

The Mobile oil and gas continuous metering device is used for the multiphase separation and measurement of oil well output，which is independently developed by our company. It has obtained multiple patents (utility model patent, patent certificate number: ZL 2017 2 1191366.7/ ZL 2018 2 2159752.9). It is used for the measurement of well output from remote wells and single well of oil well without design interval. This device can effectively solve the realistic difficult problems in traditional measurement methods, such as poor intermittent sampling accuracy, large labor intensity and failure to require the data in time etc. It facilitates timely access to objective data to analyze and study the output changes of the wells in the block of the unit, and provides a reliable basis for the dynamic management of reservoirs.

The successful development of the device provides a solution for the accurate measurement of multiphase flow under the condition of multiphase mixed transmission process for oil field production, and provides effective support and means for oil field production to realize the fine management of single wells, which is beneficial to promote the improvement of oil field production technology and management level in the oil extraction industry.

Working principle

When the oil well receives liquid, it can realize effective separation of gas-liquid phase by the gas-liquid cyclone separator. The separation controller automatically controls the liquid level and gas-liquid pressure difference, and the separated gas and liquid pass through gas flowmeter, mass flowmeter and pressure instrument respectively, and the accurate measurement of gas volume, liquid volume, oil volume, water content, system pressure, temperature and other parameters is realized.

Functional features

1. With non-radioactive measurement, and easy to use and promote;

2. Wide application scope. Applicable to the multi-phase flow measurement of single well in oil field under different conditions and media flow patterns in various complex environments such as land, sea and desert;

3. Pipeline structure design matching the process is used, pressure-free device with reliable use;

4. High accuracy of the measurement data and evident comparative advantage;

5. With continuous automatic online measurement and tracking description function;

6. Reliable operation, long service life, easy to operate, less maintenance and low trouble shooting and operation cost;

7. Can realize real-time measurement of single-phase or multi-phase parameters of oil well output (customer optional);

8. Can realize real-time acquisition, calculation and analysis of field data, and can generate liquid, gas, water (oil) metering curve and various types of production reports (customer optional);

9. Can realize alarm function for abnormal data such as pressure, temperature and liquid volume (customer optional);

10. Can realize remote sending and transmission of field data (customer optional);

11. Skid mounted structural design, easy to install and use. Can be fixed on the dragging tool (customer optional).

Main technical indicators

Measurement range and conditions

1. Liquid volume: 0-5000t/d;

2. Gas volume: 0-250000Nm³/d;

3. Water content: 0～100%;

4. Design pressure: 1.6, 2.5, 4.0, 10.0MPa or as required by the user;

5. Medium temperature: ≤120℃ (Under working condition temperature);

6. Environment temperature: -40~80℃.

Measurement accuracy

1. Liquid flow: ±2% ～ ±5%;

2. Comprehensive water content: ±2% ～ ±5%;

3. Gas flow: ±5% ～ ±10%.

Main parameters of the device

System network diagram

display interface

Device classification and selection

Multi-parameter metering device of movable oil well

The device is fixed to the customer-provided drag tool or the manufacturer-provided trailer, and used for the measurement of well output from remote wells and single well of oil well without design interval.

Schematic diagram of hand push movable device

Schematic diagram of trailer type movable device

Based on the purpose and functional requirements, the multi-parameter metering device of movable oil well can be divided into basic type and high configuration type.

Multi-parameter metering device of movable oil well (basic type)

Structure composition: main body of the device, measuring instrument (mass flowmeter, pressure gauge), high pressure connecting hose and connecting piece, electric auxiliary temperature control and external insulation system of the device, drag trailer (customer optional).

Multi-parameter metering device of movable oil well (high configuration type)

Structure composition: main body of the device, measuring instrument (mass flowmeter, gas flowmeter, pressure transmitter, pressure gauge), high pressure connecting hose and connecting piece, electric auxiliary temperature control and external insulation system of the device, drag trailer (customer optional), data acquisition and analysis processing system, data remote sending and transmission system (customer optional).