CN217681666U - Gas consumption adjusting device for drilling with accurate injection of gas - Google Patents
Gas consumption adjusting device for drilling with accurate injection of gas Download PDFInfo
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- CN217681666U CN217681666U CN202221469370.6U CN202221469370U CN217681666U CN 217681666 U CN217681666 U CN 217681666U CN 202221469370 U CN202221469370 U CN 202221469370U CN 217681666 U CN217681666 U CN 217681666U
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Abstract
The utility model provides an accurate injection gas is tolerance adjusting device for well drilling. Relates to the technical field of petroleum and natural gas drilling. The air compressor exit linkage pipeline that admits air, admit air pipeline connection electromagnetic flowmeter and check valve, the pipeline that admits air is equipped with electrical control valve before the electromagnetic flowmeter, and electrical control valve front end has connect bypass line in addition, and bypass line connects the gas holder, and the gas holder has the benefit gas pipeline to pass through the electrical switch valve to connect before the electromagnetic flowmeter, on the intake pipe line behind the electrical control valve. The utility model discloses following beneficial effect has: when the formation backpressure is low, the opening degree of the electric regulating valve is reduced, the flow of injected gas in the low backpressure is kept, redundant gas enters the gas storage tank through the bypass pipeline, the electric switch valve is opened to release high-pressure gas to be supplemented to the gas inlet pipeline when the formation backpressure is high, the gas storage tank stores gas and utilizes the energy of the part of gas, and the energy consumption caused by the fact that the frequency of the air compressor is simply increased to increase the gas production is avoided.
Description
The technical field is as follows:
the utility model belongs to the technical field of oil and gas drilling technique and specifically relates to an accurate tolerance adjusting device for gas drilling that pours into.
The background art comprises the following steps:
foam well drilling technology, atomization well drilling technology and inflation pressure control well drilling technology in the technical field of gas well drilling have the characteristics of accelerating and controlling leakage of a well in a water outlet stratum, well leakage and stratum water outlet at the same time, and are widely used;
in the prior art, in foam, atomization or inflation pressure-control drilling, when gas-liquid two-phase flow is used as a circulating medium to implement drilling, because the exhaust gas volume of a single air compressor or a supercharger is fixed at present, in order to meet the designed gas injection volume, the variable-frequency control air compressor is used for supplying gas, however, in actual production, the back pressure of an injection gas line is changed due to the change of formation pressure, so that the flow of the injected gas is changed, when the gas supply volume is greater than the design requirement, the density of drilling fluid is reduced and is lower than the design density requirement, and the rock carrying capacity of diluted drilling fluid is reduced in the drilling process, so that drill cuttings cannot flow out of the ground completely and normally; when the air supply amount is less than the design requirement, the density of the drilling fluid is larger, the design requirement cannot be met, and the drilling speed is reduced as the density of the drilling fluid is too large, so that the accurate air injection amount and liquid injection amount are important technologies in the foam, atomization or inflation pressure control drilling process and are also the requirements of safe and rapid drilling.
The utility model has the following contents:
in order to solve the problem that the gas flow changes and leads to the drill chip can not normally flow out the ground completely or the drilling speed descends when gas drilling at present indefinitely, the utility model provides an accurate injection gas is tolerance adjusting device for drilling.
The technical scheme of the utility model is that: the utility model provides an accurate gas injection is tolerance adjusting device for well drilling, includes the air compressor machine, and air compressor machine exit linkage air inlet pipeline, air inlet pipeline connect electromagnetic flowmeter and check valve, and the air inlet pipeline is equipped with electric control valve before electromagnetic flowmeter, and the electric control valve front end has connect bypass line in addition, and bypass line connects the gas holder, and the gas holder has the gas supply pipeline to pass through electric switch valve and connects before the electromagnetic flowmeter, on the air inlet pipeline behind the electric control valve.
The electromagnetic flowmeter has the PLC in the wire connection switch board, and the air compressor machine is by frequency conversion control, and PLC has the converter of wire connection air compressor machine, and PLC has the wire to connect electrical control valve and electric switch valve respectively.
And a pressure transmitter is arranged on the gas storage tank and is connected with a PLC in the control cabinet through a lead.
The bypass pipeline is provided with a one-way valve, and the gas storage tank is provided with a safety valve.
The utility model discloses following beneficial effect has: the opening of the electric control valve is reduced when the formation backpressure is low, the flow of injected gas when the formation backpressure is low is kept, redundant gas enters the gas storage tank through a bypass pipeline, the electric switch valve is opened when the formation backpressure is high to release high-pressure gas to be supplemented to an air inlet pipeline, the gas storage tank stores gas and utilizes the energy of the part of gas, the energy consumption caused by the frequency increase gas production of the air compressor is avoided, when normal gas injection is performed, the gas injection flow is met by setting the gas production of the frequency converter control air compressor and the compensation of the gas storage tank, when the gas storage tank continuously performs high pressure, signals of the pressure transmitter are passed, and the PLC reduces the operation frequency of the air compressor so as to keep the gas pressure balance.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1-an air compressor, 2-an air inlet pipeline, 3-an electromagnetic flowmeter, 4-a one-way valve, 5-an electric regulating valve, 6-an electric switch valve, 7-an air storage tank, 8-a pressure transmitter, 9-a safety valve, 10-a bypass pipeline, 11-an air supplement pipeline and 12-a control cabinet.
The specific implementation mode is as follows:
the present invention will be further explained with reference to the accompanying drawings:
as shown by figure 1, an accurate gas injection is gas drilling and is used tolerance adjusting device, including air compressor machine 1, 1 exit linkage air inlet pipeline 2 of air compressor machine, air inlet pipeline 2 connects electromagnetic flowmeter 3 and check valve 4, air inlet pipeline 2 is equipped with electric control valve 5 before electromagnetic flowmeter 3, electric control valve 5 front end has connect bypass pipeline 10 in addition, bypass pipeline 10 connects gas holder 7, gas holder 7 has gas supply pipeline 11 to connect before electromagnetic flowmeter 3, on air inlet pipeline 2 behind electric control valve 5 through electric switch valve 6.
The electromagnetic flow meter 3 is connected with a PLC in the control cabinet 12 through a lead, the air compressor 1 is controlled by frequency conversion, the PLC is connected with a frequency converter of the air compressor 1 through a lead, and the PLC is connected with the electric regulating valve 5 and the electric switch valve 6 through leads respectively.
And a pressure transmitter 8 is arranged on the gas storage tank 7, and the pressure transmitter 8 is connected with a PLC in the control cabinet 12 through a lead.
The one-way valve 4 is arranged on the bypass pipeline 10, gas entering the gas storage tank 7 through the bypass pipeline 10 cannot flow back, the opening degree of the electric control valve 5 is reduced when the formation backpressure is low, the flow of injected gas is kept when the formation backpressure is low, redundant gas enters the gas storage tank 7 through the bypass pipeline 10, the electric switch valve 6 is opened when the formation backpressure is high to release high-pressure gas to be supplemented to the gas inlet pipeline 2, the gas storage tank 7 stores gas and utilizes the energy of the part of gas, the energy consumption caused by the fact that the gas production is increased only by increasing the frequency of the air compressor 1 is avoided, during normal gas injection, the gas injection flow is met by controlling the gas production of the air compressor 1 and the compensation of the gas storage tank 7 through the set frequency converter, when the gas storage tank 7 continues to be high-pressure, the PLC reduces the running frequency of the air compressor 1 through receiving signals of the pressure transmitter 8 to keep the gas pressure balance, and the safety valve 9 is installed on the gas storage tank 7 to serve as a mechanical installation guarantee.
Claims (4)
1. The utility model provides an accurate injection gas well drilling is with tolerance adjusting device, includes air compressor machine (1), its characterized in that: air compressor machine (1) exit linkage air inlet pipeline (2), electromagnetic flowmeter (3) and check valve (4) are connected in air inlet pipeline (2), air inlet pipeline (2) are equipped with electrical control valve (5) before electromagnetic flowmeter (3), electrical control valve (5) front end has connect bypass pipeline (10) in addition, gas holder (7) is connected in bypass pipeline (10), gas holder (7) have air supplement pipeline (11) to connect before electromagnetic flowmeter (3) through electric switch valve (6), on air inlet pipeline (2) after electrical control valve (5).
2. The gas consumption adjusting device for the precise injection gas drilling well according to claim 1, wherein: the electromagnetic flowmeter (3) is provided with a PLC (programmable logic controller) connected with the inside of the control cabinet (12) through a lead, the air compressor (1) is controlled by frequency conversion, the PLC is provided with a frequency converter connected with the air compressor (1) through a lead, and the PLC is provided with a lead respectively connected with the electric regulating valve (5) and the electric switch valve (6).
3. The gas consumption adjusting device for the precise injection gas drilling well according to claim 1, wherein: a pressure transmitter (8) is installed on the gas storage tank (7), and the pressure transmitter (8) is connected with a PLC in the control cabinet (12) through a lead.
4. The gas consumption adjusting device for the precise injection gas drilling well according to claim 1, wherein: a one-way valve (4) is arranged on the bypass pipeline (10), and a safety valve (9) is arranged on the gas storage tank (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221469370.6U CN217681666U (en) | 2022-06-13 | 2022-06-13 | Gas consumption adjusting device for drilling with accurate injection of gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221469370.6U CN217681666U (en) | 2022-06-13 | 2022-06-13 | Gas consumption adjusting device for drilling with accurate injection of gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217681666U true CN217681666U (en) | 2022-10-28 |
Family
ID=83708884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221469370.6U Active CN217681666U (en) | 2022-06-13 | 2022-06-13 | Gas consumption adjusting device for drilling with accurate injection of gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217681666U (en) |
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2022
- 2022-06-13 CN CN202221469370.6U patent/CN217681666U/en active Active
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