CN203808936U - Ground control device for controlling opening and closing of down-hole slide sleeve by gas-liquid joint control - Google Patents
Ground control device for controlling opening and closing of down-hole slide sleeve by gas-liquid joint control Download PDFInfo
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- CN203808936U CN203808936U CN201420263912.3U CN201420263912U CN203808936U CN 203808936 U CN203808936 U CN 203808936U CN 201420263912 U CN201420263912 U CN 201420263912U CN 203808936 U CN203808936 U CN 203808936U
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Abstract
The utility model provides a ground control device for controlling opening and closing of a down-hole slide sleeve by gas-liquid joint control. The ground control device comprises a tank body and a control pipeline arranged in the tank body, the tank body is provided with a driving air inlet and an external slide sleeve control pressure oil joint, the control pipeline comprises a driving air pressure regulation valve, a driving air throttling valve, a gas-liquid power system and a plurality of slide sleeve selection branches in sequence connection, the driving air inlet is communicated with the driving air pressure regulation valve, two ends of the slide sleeve selection branches are respectively communicated with the gas-liquid power system and the external slide sleeve control pressure oil joint. By the aid of gas-liquid joint control, pipeline pressure and flow are used as judgment reference to sectional opening and closing states of the slide sleeve, and the ground control device is simple in structure, high in reliability and cost saving.
Description
Technical field
The utility model relates to a kind of oil well operation device, refers in particular to a kind of ground control unit of gas-liquid combination-controlled underground sliding bush switching.
Background technology
Sliding sleeve is as the core executing agency of down-hole flow system, and its reliably working depends on the performance of ground remote operating system; Due to the various complex environment in down-hole, characteristics such as high temperature, high pressure, deep-etching, electromagnetic interference; Making reliability and the life-span of downhole component is the major obstacle that hinders smart well technology development, at present domestic component quality and performance are more difficult to guarantee, whole dependence on import and seriously limited, the cost of intelligent well completion can be in any more, has influence on this technology in Chinese popularization.
The determining positions of sliding sleeve the aperture area of oil nozzle, be the important parameter that determines payzone flow, so accurately location is most important in the position of sliding sleeve; There are two kinds of feedback systems the position of existing domestic and international system sliding sleeve, and a kind of is that another kind is to monitor valve displacement at installation position, down-hole displacement sensor by determining that at the recirculating oil quantity of ground monitoring hydraulic line the impulse stroke of sliding sleeve is valve port opening; The former is limited to the physical characteristic of volume compression/expansion with pressure, temperature variation of drive system medium (hydraulic oil) in subsurface environment, cause sliding sleeve displacement not corresponding with recirculating oil quantity, the latter requires to install the displacement transducer of high temperature high voltage resistant and the restriction that appearance and size can meet down-hole small space, implements complexity and costliness.
Utility model content
In order to solve sliding sleeve location positioning system complex structure and expensive problem in oil well operation, the utility model proposes a kind of ground control unit of gas-liquid combination-controlled underground sliding bush switching, by utilizing gas-liquid linked control, judgment basis with line pressure and flow combination as sliding sleeve block switch state, simple in structure, but reliability is high, and cost-saving.
The technical scheme that the utility model adopts is: a kind of ground control unit of gas-liquid combination-controlled underground sliding bush switching, comprise casing and be installed in the control piper in casing, casing is provided with and drives air intake and sliding sleeve controlled pressure oil external tapping, described control piper comprises the driving air pressure-adjusting valve connecting successively, drive air control shutter, gas-liquid dynamical system and several sliding sleeves are selected branch road, drive air intake to be communicated with driving air pressure-adjusting valve, described sliding sleeve selects branch road two ends respectively by pipeline and gas-liquid dynamical system, sliding sleeve controlled pressure oil external tapping is communicated with.The utility model adopts flow-control strategy, by gas-liquid dynamical system, to the sliding sleeve of down-hole, provide required super-pressure small control flow, by driving air pressure-adjusting valve, drive air control shutter can guarantee that the pressure of required hydraulic power source and flow supply with, several sliding sleeves selection branch roads enter into corresponding sliding sleeve control chamber promotion sliding sleeve by combination addressing and move, thereby realize the selective operation to N+1 sliding sleeve.
As preferably, described gas-liquid dynamical system comprises the Gas-liquid pump that several are in parallel, hydraulic oil container, hydraulic pressure control valve and flow speed control valve, Gas-liquid pump is provided with compressed air inlet, pressure oil entrance and pressure oil outlet, hydraulic oil container is provided with the oil suction mouth of pipe, the oil return mouth of pipe and the draining mouth of pipe, the compressed air inlet of Gas-liquid pump connects the output that drives air control shutter, the pressure oil entrance of Gas-liquid pump connects the oil suction mouth of pipe of hydraulic oil container, the pressure oil outlet of Gas-liquid pump connects the input of flow speed control valve, the low-pressure end of hydraulic pressure control valve connects the draining mouth of pipe of hydraulic oil container, the high-pressure side of hydraulic pressure control valve connects the input of flow speed control valve.The highest hydraulic operating pressure can reach 80MPa, to meet the action request of the 6000 meters of depths hydraulic sliding sleeves in down-hole.
As preferably, each described sliding sleeve selects branch road to include high-pressure stop valve and high-pressure unloading valve, the input of high-pressure stop valve connects the output of flow speed control valve by pipeline, the output of high-pressure stop valve connects high pressure sliding sleeve external tapping, the input of high-pressure unloading valve connects the output of high-pressure stop valve, and the output of high-pressure unloading valve connects the oil return mouth of pipe of hydraulic oil container.Entering sliding sleeve selects the pressure oil of branch road to be regulated by flow speed control valve, both adjustable sliding sleeve translational speed, can not be subject to load effect again, system minimum controlling flux 20～40 ml/min, have solved minimum of conventional hydraulic flow control valve and have adjusted flow to surpass normally the work difficult problem of higher limit of sliding sleeve; Sliding sleeve is selected the combination addressing by high-pressure stop valve and high-pressure unloading valve of pressure oil in branch road to enter into corresponding sliding sleeve control chamber to promote sliding sleeve and move, can realize the selective operation to a plurality of sliding sleeves.
As preferably, between the output of described flow speed control valve and the input of high-pressure stop valve, be connected with flow transmitter, the display unit of flow transmitter is located at the external surface of casing.Can real-time monitored and the flow parameter gathering in hydraulic line by the small flow measurement device of super-pressure being serially connected in loop.
As preferably, between the output of described flow speed control valve and the input of high-pressure stop valve, be connected with pressure meter, manometric display unit is located at the external surface of casing.By the pressure meter being serially connected in loop, can real-time monitored record the pressure parameter in hydraulic line.
The beneficial effects of the utility model are: by utilizing gas-liquid linked control, and the judgment basis with line pressure and flow combination as sliding sleeve block switch state, simple in structure, but reliability is high, and cost-saving.
Accompanying drawing explanation
Fig. 1 is a kind of structured flowchart of the present utility model.
In figure, 1-drives air intake, and 2-drives air pressure-adjusting valve, 3-drives air control shutter, 4-Gas-liquid pump, 5-hydraulic oil container, 6-hydraulic pressure control valve, 7-flow speed control valve, 8-high-pressure stop valve, 9-high-pressure unloading valve, 10-sliding sleeve controlled pressure oil external tapping, 11-flow transmitter, 12-pressure meter, 13-pressure limiting valve.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, a kind of ground control unit of gas-liquid combination-controlled underground sliding bush switching, comprise casing and be installed in the control piper in casing, casing is provided with and drives air intake 1 and sliding sleeve controlled pressure oil external tapping 10, control piper comprises driving air pressure-adjusting valve 2, driving air control shutter 3, gas-liquid dynamical system and four the sliding sleeves selection branch roads that connect successively, drive air intake 1 to be communicated with driving air pressure-adjusting valve 2, each sliding sleeve selects branch road two ends by pipeline, to be communicated with gas-liquid dynamical system, sliding sleeve controlled pressure oil external tapping 10 respectively.
Gas-liquid dynamical system comprises two Gas-liquid pumps in parallel 4, hydraulic oil container 5, hydraulic pressure control valve 6 and flow speed control valve 7, Gas-liquid pump 4 is provided with compressed air inlet A1, pressure oil entrance A2 and pressure oil outlet A3, hydraulic oil container 5 is provided with oil suction mouth of pipe B1, oil return mouth of pipe B2 and draining mouth of pipe B3, the compressed air inlet A1 of Gas-liquid pump 4 connects the output that drives air control shutter 3, the pressure oil entrance A2 of Gas-liquid pump 4 connects the oil suction mouth of pipe B1 of hydraulic oil container 5, the pressure oil outlet A3 of Gas-liquid pump 4 connects the input of flow speed control valve 7, the low-pressure end C1 of hydraulic pressure control valve 6 connects the draining mouth of pipe B3 of hydraulic oil container 5, the high-pressure side C2 of hydraulic pressure control valve 6 connects the input of flow speed control valve.Between the output of the compressed air inlet A1 of Gas-liquid pump 4 and driving air control shutter 3, can be connected with pressure limiting valve 13.
Each sliding sleeve selects branch road to combine by a high-pressure stop valve 8 and a high-pressure unloading valve 9, the input of high-pressure stop valve 8 connects the output of flow speed control valve 7 by pipeline, the output of high-pressure stop valve 8 connects sliding sleeve controlled pressure oil external tapping 10, the input of high-pressure unloading valve 9 connects the output of high-pressure stop valve 8, and the output of high-pressure unloading valve 9 connects the oil return mouth of pipe B2 of hydraulic oil container 5.
Between the input of the output of flow speed control valve 7 and high-pressure stop valve 8, be connected with respectively flow transmitter 11 and pressure meter 12, the display unit of flow transmitter 11 and pressure meter 12 is all located at the external surface of casing.
The utility model adopts flow-control strategy, by gas-liquid dynamical system, to the sliding sleeve of down-hole, provides required super-pressure small control flow, by driving air pressure-adjusting valve, drive air control shutter can guarantee that the pressure of required hydraulic power source and flow supply with; The highest hydraulic operating pressure can reach 80MPa, to meet the action request of the 6000 meters of depths hydraulic sliding sleeves in down-hole; Entering sliding sleeve selects the pressure oil of branch road to be regulated by flow speed control valve, both adjustable sliding sleeve translational speed, can not be subject to load effect again, system minimum controlling flux 20～40 ml/min, have solved minimum of conventional hydraulic flow control valve and have adjusted flow to surpass normally the work difficult problem of higher limit of sliding sleeve; Sliding sleeve selects the pressure oil in branch road to corresponding sliding sleeve control chamber promotion sliding sleeve, to move through sliding sleeve controlled pressure oil external tapping by the combination addressing of high-pressure stop valve and high-pressure unloading valve, can realize the selective operation to a plurality of sliding sleeves; The load of hydraulic system opens resistance by sliding sleeve and line loss forms, and can on Hydraulic Station console, by pressure meter, monitor and record; Can real-time monitored and the control flow gathering in hydraulic line by the super-pressure small amount of flow measuring device being serially connected in loop.The utility model is the judgment basis as sliding sleeve block switch state with line pressure and flow combination, and system control strategy, simple and reliable.
Above embodiment is only explanation technological thought of the present utility model; can not limit protection domain of the present utility model with this; every technological thought according to the utility model proposes, any change of doing on technical scheme basis, within all falling into protection domain of the present utility model.
Claims (5)
1. the ground control unit of a gas-liquid combination-controlled underground sliding bush switching, it is characterized in that: comprise casing and be installed in the control piper in casing, casing is provided with and drives air intake and sliding sleeve controlled pressure oil external tapping, described control piper comprises driving air pressure-adjusting valve, driving air control shutter, gas-liquid dynamical system and several sliding sleeves selection branch road connecting successively, drive air intake to be communicated with driving air pressure-adjusting valve, described sliding sleeve selects branch road two ends by pipeline, to be communicated with gas-liquid dynamical system, sliding sleeve controlled pressure oil external tapping respectively.
2. the ground control unit of gas-liquid combination-controlled underground sliding bush switching according to claim 1, it is characterized in that: described gas-liquid dynamical system comprises the Gas-liquid pump that several are in parallel, hydraulic oil container, hydraulic pressure control valve and flow speed control valve, Gas-liquid pump is provided with compressed air inlet, pressure oil entrance and pressure oil outlet, hydraulic oil container is provided with the oil suction mouth of pipe, the oil return mouth of pipe and the draining mouth of pipe, the compressed air inlet of Gas-liquid pump connects the output that drives air control shutter, the pressure oil entrance of Gas-liquid pump connects the oil suction mouth of pipe of hydraulic oil container, the pressure oil outlet of Gas-liquid pump connects the input of flow speed control valve, the low-pressure end of hydraulic pressure control valve connects the draining mouth of pipe of hydraulic oil container, the high-pressure side of hydraulic pressure control valve connects the input of flow speed control valve.
3. the ground control unit of gas-liquid combination-controlled underground sliding bush switching according to claim 2, it is characterized in that: each described sliding sleeve selects branch road to include high-pressure stop valve and high-pressure unloading valve, the input of high-pressure stop valve connects the output of flow speed control valve by pipeline, the output of high-pressure stop valve connects high pressure sliding sleeve external tapping, the input of high-pressure unloading valve connects the output of high-pressure stop valve, and the output of high-pressure unloading valve connects the oil return mouth of pipe of hydraulic oil container.
4. the ground control unit of gas-liquid combination-controlled underground sliding bush switching according to claim 3, it is characterized in that: between the output of described flow speed control valve and the input of high-pressure stop valve, be connected with flow transmitter, the display unit of flow transmitter is located at the external surface of casing.
5. the ground control unit of gas-liquid combination-controlled underground sliding bush switching according to claim 3, is characterized in that: between the output of described flow speed control valve and the input of high-pressure stop valve, be connected with pressure meter, manometric display unit is located at the external surface of casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263912.3U CN203808936U (en) | 2014-05-22 | 2014-05-22 | Ground control device for controlling opening and closing of down-hole slide sleeve by gas-liquid joint control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263912.3U CN203808936U (en) | 2014-05-22 | 2014-05-22 | Ground control device for controlling opening and closing of down-hole slide sleeve by gas-liquid joint control |
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| CN203808936U true CN203808936U (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420263912.3U Active CN203808936U (en) | 2014-05-22 | 2014-05-22 | Ground control device for controlling opening and closing of down-hole slide sleeve by gas-liquid joint control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847859A (en) * | 2019-11-11 | 2020-02-28 | 中国海洋石油集团有限公司 | Intelligent well completion downhole flow valve ground control ultrahigh pressure hydraulic system |
-
2014
- 2014-05-22 CN CN201420263912.3U patent/CN203808936U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847859A (en) * | 2019-11-11 | 2020-02-28 | 中国海洋石油集团有限公司 | Intelligent well completion downhole flow valve ground control ultrahigh pressure hydraulic system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Yuhang District, Hangzhou City, Zhejiang Province, 311121 West Sea Park No. 998 Building No. 18 409-412 Patentee after: Hangzhou Aili lingfu Polytron Technologies Inc Address before: Yuhang District, Hangzhou City, Zhejiang Province, 311121 West Sea Park No. 998 Building No. 18 409-412 Patentee before: HY Lingfu Tech (Hangzhou) Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211222 Address after: 311121 room 2101-02, building 1, Aili center, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Aili Intelligent Control Technology Co.,Ltd. Address before: 311121 409-412, building 18, Haichuang Park, No. 998, Wenyi West Road, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU AILI LINGFU TECHNOLOGY CO.,LTD. |