CN209049356U - A kind of high-temperature high-voltage reaction device of oil gas well working fluid containing gas phase - Google Patents

Abstract

The utility model discloses a high temperature and high pressure reaction device for working fluid of gas-phase oil and gas wells, comprising a gas compression system, a reactor, a sample gas cylinder, an intermediate gas chamber, a temperature sensor, a heating rod, a pressure sensor, a pH sensor, a stirring kit, a reaction The gas inlet of the reactor, the exhaust port of the reactor, the sample injection port, the control valve, the flow meter, the compressed gas main pipe, the valve, the compressed gas branch pipe, the discharge branch pipe, the pressure relief branch pipe, and the controller. The device is equipped with multiple sample gas cylinders. The composition of the raw material gas can be adjusted by controlling the flow of different sample gas branches, and the influence of different gas compositions on the experiment can be evaluated; the device is equipped with multiple reactors, and each reactor is equipped with a separate measurement and control system, which can carry out different tests at the same time. Multiple control experiments under temperature and pressure conditions.

Description

A high temperature and high pressure reaction device for working fluid of gas-phase oil and gas wells

technical field

The utility model relates to a reaction device, in particular to a high temperature and high pressure reaction device for working fluid of gas-phase oil and gas wells.

Background technique

In the indoor experimental process, it is often necessary to analyze the properties of the liquid under high temperature and high pressure conditions involving gas phase. One is to compare with the experimental results under normal temperature and normal pressure conditions; It is closer to the real situation, and the application value of the experimental results is higher. In the actual oil and gas well engineering operations, the compatibility of various well-entry working fluids under high temperature and high pressure conditions in a certain gas phase atmosphere is explored, and the formulation development and specific engineering of drilling fluids, killing fluids, completion fluids, and fracturing fluids are carried out. The formulation of the plan is of great significance.

In the prior art, CN206982989U discloses a liquid reaction device, which can stir the liquid under sealed conditions at normal temperature and pressure and provide a reaction environment, but cannot carry out multiple sets of experiments at the same time, and has certain limitations in terms of condition control sex. In addition, the experimental equipment published by CN206982989U cannot create a specific gas-phase atmosphere, and cannot complete high-temperature and high-pressure experiments involving gas-phase participation.

Utility model content

The utility model mainly overcomes the deficiencies in the prior art, and proposes a high temperature and high pressure reaction device for working fluid of gas-phase oil and gas wells.

In order to achieve the above purpose, the utility model provides the following technical scheme: a high temperature and high pressure reaction device for gas-phase oil and gas well working fluid, including a gas compression system, a reactor, a sample gas cylinder, an intermediate gas chamber and a controller, wherein the reactor is provided with Multiple control group experiments can be carried out at the same time, and the sample gas cylinders are equipped with multiple gas filled with different types of gases, and the composition of the reaction raw material gas can be adjusted during the experiment.

Each reactor includes a reactor head and a reactor barrel. The reactor head is connected to the reactor barrel. The reactor head is provided with a temperature sensor, a heating rod, a pressure sensor, a pH sensor and a pH sensor that penetrate into the reactor. A sensor, a stirring kit, and a reactor gas inlet, a reactor exhaust port and a sample injection port are also provided on the reactor head;

The middle air chamber is provided with a middle air chamber vent, a sample gas inlet in the middle air chamber, a sample gas outlet in the middle air chamber and an air suction interface in the middle air chamber. The gas branch pipe is connected with the sample gas cylinder, and the sample gas branch pipe is provided with a control valve and a flow meter. During the experiment, the composition of the raw material gas can be adjusted by controlling the flow of different sample gas branch pipes;

The gas compression system is provided with a sample gas inlet of the compression system, a sample gas outlet of the compression system, and a ventilation port of the compression system; the sample gas outlet of the intermediate air chamber is connected with the sample gas inlet of the compression system;

The sample gas outlet of the compression system is connected to the air extraction interface of the intermediate air chamber through the compressed gas main pipe. The compressed gas main pipe is provided with valves at both ends, and the compressed gas main pipe between the two valves is connected to the reactor gas inlet through the compressed gas branch pipe. The compressed gas branch pipe There is a control valve on it;

The vent of the intermediate air chamber and the vent of the compression system are connected with the exhaust main pipe through the discharge branch pipe and the branch pipe is provided with a valve, the reactor exhaust port is communicated with the exhaust main pipe through the pressure relief branch pipe, and the pressure relief branch pipe is provided with a control valve;

The controller is electrically connected to the temperature sensor, heating rod, pressure sensor, pH sensor, stirring kit, control valve and flow meter for easy data and control signal transmission.

Further, the reactor head and the reactor barrel are sealed with a stepped combined sealing ring, and are connected with threads.

Further, there are two heating rods.

Further, the outer diameter of the wall of the reactor barrel is 150 mm, the inner diameter is 130 mm, and the height is 200 mm, the bottom thickness of the reactor barrel is 10 mm, and the wall thickness is 10 mm, and the material of the reactor barrel is titanium alloy.

The beneficial effects of the present utility model are as follows:

The device is equipped with multiple sample gas cylinders, the composition of the raw material gas can be adjusted by controlling the flow of different sample gas branches, and the influence of different gas compositions on the experiment can be evaluated; the device is equipped with multiple reactors and each reactor is equipped with a separate The measurement and control system can carry out multiple sets of control experiments under different temperature and pressure conditions at the same time.

Description of drawings

Fig. 1 is the overall schematic diagram of the utility model

Figure 2 is a schematic diagram of the reactor

Figure 3 is a top view of the reactor head

In the figure, 1, gas compression system; 2, reactor; 3, sample gas cylinder; 4, intermediate gas chamber; 5, reactor head; 6, reactor barrel; 7, temperature sensor; 8, heating rod; 9. Pressure sensor; 10. pH sensor; 11. Stirring kit; 12. Reactor gas inlet; 13. Reactor exhaust port; 14. Injection port; Gas inlet; 17. Sample gas outlet of intermediate gas chamber; 18. Air extraction interface of intermediate gas chamber; 19. Sample gas main pipe; 20. Sample gas branch pipe; 21. Control valve; Inlet; 24. Sample gas outlet of compression system; 25. Ventilation port of compression system; 26. Compressed gas main pipe; 27. Valve; 28. Compressed gas branch pipe; 29. Discharge branch pipe; 30. Exhaust main pipe; 31. Pressure relief branch pipe; 32. Controller

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" The orientation or positional relationship indicated by "" etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, so as to The specific orientation configuration and operation is therefore not to be construed as a limitation of the present invention.

In the description of the present utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "provided with", "connected", etc., should be understood in a broad sense, for example, "connected" may be a fixed The connection can also be a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Please refer to FIGS. 1-3, an embodiment provided by the present utility model: a high temperature and high pressure reaction device for working fluid of gas-phase oil and gas wells, comprising a gas compression system 1, a reactor 2, a sample gas cylinder 3, an intermediate gas chamber 4 and The controller 32, wherein the reactor 2 and the sample gas bottle 3 are both four.

The reactor 2 includes a reactor head 5 and a reactor barrel 6. The reactor head 5 and the reactor barrel 6 are sealed and screwed with a stepped combination sealing ring. Inside the temperature sensor 7, heating rod 8, pressure sensor 9, pH sensor 10, stirring kit 11, the reactor head 5 is also provided with a reactor gas inlet 12, a reactor exhaust port 13 and a sample injection port 14;

The intermediate air chamber 4 is provided with an intermediate air chamber ventilation port 15, an intermediate air chamber sample gas inlet 16, an intermediate air chamber sample gas outlet 17 and an intermediate air chamber air extraction interface 18, the intermediate air chamber sample gas inlet 16 and the sample gas manifold 19 Connected, the sample gas main pipe 19 is communicated with the sample gas cylinder 3 through the sample gas branch pipe 20, and the sample gas branch pipe 20 is provided with a control valve 21 and a flow meter 22;

The gas compression system 1 is provided with a compression system sample gas inlet 23, a compression system sample gas outlet 24, and a compression system vent port 25; the intermediate air chamber sample gas outlet 17 communicates with the compression system sample gas inlet 23;

The sample gas outlet 24 of the compressed system is communicated with the air extraction interface 18 of the intermediate air chamber through a compressed gas main pipe 26. Both ends of the compressed gas main pipe 26 are provided with valves 27, and the compressed gas main pipe 26 between the two valves is connected to the reactor through a compressed gas branch pipe 28. The gas inlet 12 is connected, and the compressed gas branch pipe 28 is provided with a control valve 21;

The vent port 15 of the intermediate air chamber and the vent port 25 of the compression system are all communicated with the exhaust manifold 30 through the discharge branch pipe 29 and a valve 27 is provided on the discharge branch pipe 29, and the reactor exhaust port 13 is communicated with the exhaust manifold 30 through the pressure relief branch pipe 31. And the pressure relief branch pipe 31 is provided with a control valve 21;

The controller 32 is electrically connected with the temperature sensor 7 , the heating rod 8 , the pressure sensor 9 , the pH sensor 10 , the stirring kit 11 , the control valve 21 and the flow meter 22 , so as to facilitate data and control signal transmission.

The outer diameter of the reactor barrel 6 is 150 mm, the inner diameter is 130 mm, and the height is 200 mm. The bottom thickness of the reactor barrel 6 is 10 mm and the wall thickness is 10 mm. The material of the reactor barrel 6 is titanium alloy.

The device is used as follows:

1. Create special rated gas phase conditions: close all valves of the device, open the valves on each compressed gas branch pipe, the valve at one end of the compressed gas main pipe near the evacuation interface of the intermediate air chamber, and the exhaust branch pipe valve at the air outlet of the compression system, that is, open the vacuuming process and start the compression The system evacuates each reactor and the intermediate air chamber. When the pressure in the reactor does not change, it is considered to be in the maximum vacuum state. Close the valve of the exhaust branch pipe at the ventilation port of the compression system, stop the compression system, and pass the control valve on each sample gas branch pipe. In cooperation with the flowmeter, the sample gas is injected into the intermediate gas chamber, and the composition of the raw material gas in the intermediate gas chamber can be adjusted by adjusting the gas flow rate of each sample gas branch pipe. The branch pipe punches the reactor. When the pressure in the reactor reaches 1 atm (A), close the control valve of each sample gas branch pipe. Of course, if the influence of air on the reaction can be ignored during the experiment, this step can also be omitted.

2. Improve the process of the booster system for backup: close all valves of the device, open the valve at the end of the compressed gas main pipe near the evacuation interface of the intermediate air chamber, and the valve at the end of the compressed gas main pipe near the sample gas outlet of the compression system.

3. Loading the sample: Open the injection port of the reactor, put the liquid sample to be stirred into the reactor through the injection port, and then close the injection port.

4. Experiment: The target temperature, target pressure, temperature step, pressure step and stirring speed of the reactor are set by the controller. The equipment will pressurize the gas in the intermediate air chamber into the reactor to pressurize the reactor, and adjust the heating rod load to heat up the reaction system. The pressure of a single reactor is adjusted by the control valve on the compressed gas branch pipe and the discharge branch pipe, and the gas composition of the intermediate gas chamber is realized by adjusting the gas flow of the sample gas branch pipe through the control valve of each sample gas branch pipe. The temperature, pressure and pH value in the reactor will be transmitted to the controller in real time.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (5)

1. A high temperature and high pressure reaction device for gas-phase oil and gas well working fluid, comprising a gas compression system (1) and a reactor (2), characterized in that, also comprising a sample gas bottle (3), an intermediate gas chamber (4) and a control a device (32), the reactor (2) and the sample gas cylinder (3) are multiple; The reactor (2) comprises a reactor head (5) and a reactor cylinder (6), the reactor head (5) is connected with the reactor cylinder (6), and the reactor head ( 5) A temperature sensor (7), a heating rod (8), a pressure sensor (9), a pH sensor (10) and a stirring kit (11) are provided on the reactor (2), and the reactor head is (5) is also provided with a reactor gas inlet (12), a reactor exhaust port (13) and a sample injection port (14); The intermediate air chamber (4) is provided with an intermediate air chamber vent (15), an intermediate air chamber sample gas inlet (16), an intermediate air chamber sample gas outlet (17) and an intermediate air chamber air extraction interface (18), The sample gas inlet (16) of the intermediate air chamber is communicated with the sample gas main pipe (19), the sample gas main pipe (19) is communicated with the sample gas bottle (3) through the sample gas branch pipe (20), and the sample gas The branch pipe (20) is provided with a control valve (21) and a flow meter (22); The gas compression system (1) is provided with a compression system sample gas inlet (23), a compression system sample gas outlet (24) and a compression system vent (25), and the intermediate gas chamber sample gas outlet (17) is connected to the compression system The sample gas inlet (23) is connected; The sample gas outlet (24) of the compression system is communicated with the air extraction interface (18) of the intermediate air chamber through a compressed gas main pipe (26), and both ends of the compressed gas main pipe (26) are provided with valves (27), and the two valves are connected between them. The compressed gas main pipe (26) between the two is communicated with the reactor gas inlet (12) through the compressed gas branch pipe (28), and the compressed gas branch pipe (28) is provided with a control valve (21); The intermediate air chamber vent (15) and the compression system vent (25) are all communicated with the exhaust manifold (30) through the discharge branch pipe (29), and the discharge branch pipe (29) is provided with a valve (27), so The reactor exhaust port (13) is communicated with the exhaust manifold (30) through a pressure relief branch pipe (31), and a control valve (21) is arranged on the pressure relief branch pipe (31); The controller (32) is electrically connected to a temperature sensor (7), a heating rod (8), a pressure sensor (9), a pH sensor (10), a stirring kit (11), a control valve (21) and a flow meter (22). sexual connection. 2. a kind of high temperature and high pressure reaction device containing gas phase oil and gas well working fluid according to claim 1, is characterized in that, described reactor head (5) and reactor barrel (6) adopt the step combination sealing ring to seal, Threaded connection. 3 . The high temperature and high pressure reaction device for gas-phase oil and gas well working fluid according to claim 1 , wherein the heating rods ( 8 ) have two. 4 . 4. A kind of high temperature and high pressure reaction device for gas-phase oil and gas well working fluid according to claim 1, characterized in that, the outer diameter of the reactor barrel (6) is 150mm, the inner diameter is 130mm, and the height is 200mm. The thickness of the bottom of the reactor barrel (6) is 10 mm, and the material of the reactor barrel (6) is titanium alloy. 5 . The high temperature and high pressure reaction device for gas-phase oil and gas well working fluid according to claim 1 , wherein there are four said reactors ( 2 ) and four said sample gas cylinders ( 3 ). 6 .