CN210217707U - Shale gas desanding and separating system - Google Patents
Shale gas desanding and separating system Download PDFInfo
- Publication number
- CN210217707U CN210217707U CN201920721769.0U CN201920721769U CN210217707U CN 210217707 U CN210217707 U CN 210217707U CN 201920721769 U CN201920721769 U CN 201920721769U CN 210217707 U CN210217707 U CN 210217707U
- Authority
- CN
- China
- Prior art keywords
- desanding
- sand
- shutoff valve
- gas
- sand removing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004576 sand Substances 0.000 claims abstract description 133
- 238000001914 filtration Methods 0.000 claims abstract description 40
- 239000007791 liquid phase Substances 0.000 claims abstract description 33
- 238000000926 separation method Methods 0.000 claims abstract description 29
- 239000012071 phase Substances 0.000 claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 239000010865 sewage Substances 0.000 claims abstract description 7
- 238000011010 flushing procedure Methods 0.000 claims description 25
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 14
- 238000007599 discharging Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004062 sedimentation Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 40
- 238000012423 maintenance Methods 0.000 description 18
- 238000009825 accumulation Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Images
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a shale gas desanding and separating system, which comprises a desanding and filtering unit and a separating and metering unit, wherein the desanding and filtering unit mainly comprises a desanding and expanding pipe section, a desanding branch pipe, an inlet and outlet shut-off valve, a conical filtering element and a differential pressure alarm, and realizes gas-liquid separation and metering after desanding; the separation metering unit mainly comprises a separator, a feed gas inlet shutoff valve, a gas phase outlet shutoff valve, a gas phase flowmeter, a sewage discharge pipeline, a desanding branch pipe, a liquid phase outlet emergency shutoff valve, a liquid phase flowmeter, a liquid phase regulating valve and front and rear shutoff valves thereof, and meets the requirements of gas-liquid separation metering and further desanding. The utility model, through the combined use of the two units, actually carries out three-stage desanding processes such as sand sedimentation, filtration and separation, simplifies the desanding equipment and greatly improves the desanding effect and efficiency; the setting of sight pipe more can effectively monitor the effect of sand removal settlement section, cuts off at the in-process of normal sand discharging simultaneously, realizes that the sand discharging does not stop production, optimizes the simplified operation.
Description
Technical Field
The utility model relates to a system for shale gas wellhead degritting and separation.
Background
Shale gas plays an important role in the global energy structure as a huge, potentially unconventional natural gas resource. Shale gas resources in China are abundant, shale gas field ground engineering development attempts are started, ground gathering and transportation processes are also in an exploration stage, and further optimization is needed to realize large-scale low-cost development. In the shale gas ground engineering developed at present, a wellhead gathering and transportation process mainly comprises sand removal and separation metering.
Shale gas needs to be desanded because the shale gas needs to be subjected to sand fracturing to improve the yield, the sand discharge amount is large, solid impurities abrade pipelines, equipment and instruments, and can block valves and pipelines, even normal production is affected. The desander filter is usually arranged behind a first-level throttle valve close to a gas production tree at a wellhead, gas produced at the wellhead is filtered, and the filtered gas enters downstream processing equipment so as to avoid influencing subsequent equipment. However, in order to realize high-efficiency sand removal in the prior art selection, an inner member (a screen filter basket) is arranged in the sand remover, the inner member is easy to block due to more underground impurities, the frequency of maintenance and operation is extremely high, the maintenance is troublesome, and the equipment investment and the personnel maintenance cost are high.
Shale gas is typically separated and metered after sand removal. The shale gas has large reverse drainage, and the gathering and transportation process usually recommends a gas-liquid separate transportation mode to avoid the gas collection pipeline from having too high liquid holdup, so a two-phase separator is required to separate a gas phase and a liquid phase. At present, shale gas is generally developed in the early stage, and flowmeters are respectively arranged on a gas phase and a liquid phase in consideration of combining the trial production requirement and are used for collecting the production condition of a gas well. The current design can meet the requirements, has poor operation reliability, is easy to carry impurities due to poor upstream desanding effect, further blocks a liquid outlet pipeline, and needs to be shut down for maintenance or be provided with a bypass/standby separator.
Disclosure of Invention
In order to overcome the shortcoming of prior art, the utility model provides a shale gas desanding and separating system to the characteristics of shale gas well, the design provides more succinct and the stronger shale gas desanding and separating technique of reliability operability, under the prerequisite of guaranteeing economic nature, realizes effective desanding of desanding section and arranges sand on line to and desanding once more in the time of the separation measurement, and the maintenance work load that has just significantly reduced.
The utility model adopts the technical proposal that: a shale gas desanding and separating system comprises a desanding and filtering unit and a separating and metering unit; the sand removing and filtering unit comprises a sand removing and expanding pipe section and a sand removing branch pipe, wherein inlet and outlet shut-off valves are respectively arranged at the upstream and the downstream of the sand removing and expanding pipe section, a conical filtering element is arranged at the downstream of the sand removing and expanding pipe section, and a differential pressure alarm is arranged at the front and the rear of the conical filtering element; the separation metering unit comprises a separator, an inlet shutoff valve and a gas-phase outlet shutoff valve are respectively arranged on an inlet pipeline and a gas-phase outlet pipeline of the separator, a gas-phase flowmeter is arranged on a gas phase of the separator, a sewage discharge pipeline and a desanding branch pipe are arranged on a liquid phase of the separator, a liquid-phase outlet emergency shutoff valve, a liquid-phase flowmeter, a liquid-phase regulating valve and front and rear shutoff valves thereof are sequentially arranged on the sewage discharge pipeline, and an overhauling sewage discharge valve is arranged in parallel before the shutoff valve in front of the liquid-phase regulating valve and after the shutoff valve in rear of the liquid-phase regulating; the outlet shutoff valve of the desanding and filtering unit is connected with the inlet shutoff valve of the separation and metering unit; the sand removing filter unit and the sand removing branch pipes of the separation metering unit are respectively provided with a sight pipe, the upper end of the sight pipe is provided with a sand removing shutoff valve, and the lower end of the sight pipe is provided with a sand removing port.
Compared with the prior art, the utility model has the positive effects that:
(1) simplifying the optimization system: the main body structure of the desanding and filtering unit is only an expanded diameter pipe section, is not blocked by an internal member, has no special requirements on materials, is a non-pressure container, can not be restricted by the pressure container in a standard way, and does not need to be provided with a safety valve; a movable conical filtering element is additionally arranged at an outlet, sand removal is assisted in the early stage, and sand can be permanently removed after the later-stage sand amount is reduced; the sand removing and filtering unit and the separating unit are creatively provided with the sight tube, so that the sand amount and the sand discharging condition can be visually judged.
(2) The sand removing efficiency is high: because the two units are combined for use, three-stage desanding processes such as sand sedimentation, filtration, separation and the like are actually carried out, and the desanding effect and efficiency are greatly improved; the partition is carried out in the normal sand discharging process, and the sand discharging is not stopped;
(3) the operation and management are convenient: the sand removing and filtering unit and the separation and metering unit are provided with a gravel sedimentation, an observation pipe and a flushing port; the pipe can visually judge the sand sedimentation condition, and online sand discharge is realized, so that the operation is flexible; the differential pressure gauge can be maintained in time after remotely monitoring the sand accumulation condition.
(4) The cost is saved: after the system is optimized and simplified, the reliability of the desander can be improved, the number of the platform desanders is reduced, and the facility cost is reduced; the workload of maintenance is reduced, and a large amount of manpower is saved.
(5) Ensuring the productivity: the online sand discharging and maintenance work ensures that the system can normally work during sand discharging, provides a stable gas source for the downstream, further ensures the system productivity, and simultaneously avoids the risk of re-opening the well after the well is shut down and repaired;
drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a Y-shaped single-well desanding and filtering structure;
FIG. 2 is a T-shaped single-well desanding and filtering structure;
FIG. 3 shows an integrated gas-liquid separation and desanding device.
Detailed Description
The shale gas desanding and separating system comprises a desanding and filtering unit and a separating and metering unit, wherein the desanding and filtering unit mainly comprises a desanding and expanding pipe section, a conical filtering element, a desanding and flushing port, a sight pipe, a desanding port, an inlet and outlet shutoff valve and the like, and the desanding and filtering requirements are met. The separation metering unit mainly comprises a separator body, a sand removing flushing port, a sight tube, a sand removing port, a gas phase flowmeter, a liquid phase flowmeter, an inlet and outlet shut-off valve and a liquid phase emergency shut-off valve, and meets the requirements of gas-liquid separation metering and further sand removal. And an outlet shutoff valve of the desanding filtering unit is connected with an inlet shutoff valve of the separation metering unit through a short pipe, so that gas-liquid separation metering after desanding is realized.
Hereinafter, the two units are respectively described in detail as follows:
the desanding and filtering unit is shown in figures 1 and 2, and shows a structure when the angles of the desanding branch pipe and the main pipe are different, the two installation angles are related to field installation conditions, and a Y-shaped structure is preferred under the condition that the installation space allows, so that the desanding and filtering unit is more in line with the fluid flow characteristic. The desanding and filtering unit mainly comprises: the device comprises an inlet shutoff valve 1, a desanding expanding pipe section 2, a conical filter element 3, an outlet shutoff valve 4, a desanding shutoff valve 5, a sight tube 6, a desanding port 7, a desanding flushing port 8 and a differential pressure alarm 9. The large and small heads at the two ends of the sand removing expanding pipe are flush, the length of the pipe sections at the two ends is more than or equal to 150mm, all the pipelines/parts are welded, and all the valves and the conical filtering element are connected by flanges.
In the desanding and filtering unit, the desanding and expanding pipe section 2 is essentially an expanding pipe section, is made of the same material as that of the upstream and downstream, is installed in a horizontal straight pipe, and ensures that the gas-phase retention time is longer than the gravel settling time due to the expanding length and the size; after the gravel enters the desanding expanding pipe section 2 along with the shale gas, the flow speed is reduced, the density of the gravel is greater than that of water and far greater than that of a gas phase, the gravel is rapidly settled in the desanding expanding pipe section 2 according to the density difference, and the gravel enters the desanding branch pipe along with the flow. A small amount of gravel is still carried in the settled gas phase, and a conical filter element 3 is arranged at the downstream of the sand removal expanding pipe section 2 to further block the gravel entering the downstream. Conical filter element 3 adopts and to dismantle flange joint, sets up differential pressure warning 9 around simultaneously, and whether the aperture mesh number on conical filter element 3 and the conical filter element is set up according to how much and grit size determination of grit, also can consider earlier stage setting, and the later stage grit cancels when reducing. The sand removing branch pipe can be installed by selecting a Y-shaped or T-shaped structure according to the actual installation position, and the length of the sand accumulation section in the sand removing branch pipe is determined by combining the sand content and the operation; when accumulated sand approaches the sand removal shut-off valve 5, manual sand removal is needed, the length and the size of the accumulated sand section are determined according to the sand content, and meanwhile, the sand removal flushing port 8 is configured to deal with the situation that sand is piled up and is difficult to discharge.
The separation metering unit, as shown in fig. 3, comprises: the device comprises an inlet shutoff valve 21, a separator anti-impact thickened plate 22, a gas phase flowmeter 23, a gas phase outlet shutoff valve 24, a desanding shutoff valve 25, a sight tube 26, a desanding port 27, a desanding flushing port 28, a liquid phase outlet emergency shutoff valve 29, a liquid phase flowmeter 30, a liquid phase regulating valve front shutoff valve 31, a liquid phase regulating valve 32, a liquid level regulating controller 33, a liquid phase regulating valve rear shutoff valve 34, a maintenance blow-down valve 35, a separator 36, a maintenance water filling port 37 and an emptying safety valve 38. All pipelines/pieces are welded, and all valves are connected through flanges.
The separation metering unit firstly meets the configuration and size requirements of a conventional separator, an inlet folding plate and an outlet folding plate are added, the separation path is prolonged, the length of the separator can be reduced, a separator anti-impact thickening plate 22 is added on a container wall corresponding to inlet air, and the service life of the separator is effectively prolonged. The gas phase flowmeter 23 and the liquid phase flowmeter 30 are respectively arranged on the gas phase and the liquid phase, so that the requirement of shale gas metering test is met. Two paths of pollution discharge are respectively arranged on the liquid phase, so that the normal production working condition and the maintenance working condition are met. The unit is particularly provided with a desanding branch pipe, the desanding working principle and the specific operation are consistent with the arrangement of the desanding filtering unit, and the accumulated sand amount is far less than that of an upstream desanding filtering section, so that the desanding frequency is reduced.
According to the method for carrying out desanding separation by utilizing the desanding separation system, the desanding filtering unit and the separation metering unit can be connected and used through a short circuit, the number of well heads of a single shale gas platform is large, and two or more desanding filtering units and the separation metering unit can be combined and switched to be used. The single unit operation method is as follows:
the sand removing and filtering unit is specifically operated as follows:
(1) and during normal operation, the inlet shutoff valve 1, the outlet shutoff valve 4 and the desanding shutoff valve 5 are opened, the valve of the desanding flushing port 8 is closed, and the desanding port 7 is isolated by a blind flange. An operator regularly observes the condition of the sand accumulation section through the sight tube 6, and sand discharge operation is carried out when the sand amount is deposited to be close to the sand removal shut-off valve 5.
(2) During the sand discharging operation, only the sand removing shutoff valve 5 is closed, the inlet shutoff valve 1 and the outlet shutoff valve 4 are kept open, and the sand removing port 7 is opened to discharge sand. When the gravel is deposited and inconvenient to discharge, the rapid joint of the sand removing flushing port 8 is connected with a water source to help flushing and discharging sand; after the sand removal is finished, the valve of the sand removal flushing port 8 and the blind plate of the sand removal flushing port 7 are closed again, and the sand removal shutoff valve 5 is opened to continue collecting settled gravel.
(3) During maintenance operation, when the differential pressure alarm 9 prompts that the differential pressure is too large, the conical filter element is blocked, the inlet shutoff valve 1, the outlet shutoff valve 4 and the desanding shutoff valve 5 are closed at the moment, the conical filter element 3 is taken out, and blockage is cleared. The conical filter element 3 can be permanently removed at a later stage when the sand content is extremely low.
The specific operation in the separation metering unit is as follows:
(1) during normal operation, the inlet shutoff valve 21, the outlet shutoff valve 24 and the desanding shutoff valve 25 are opened, the valve of the desanding flushing port 28 is closed, and the desanding port 27 is isolated by a blind flange; the liquid level controller 33 adjusts the opening of the liquid phase control valve 32 to perform liquid discharge. The separated gas phase and liquid phase are measured by a gas flow meter 23 and a liquid flow meter 30, respectively. The operator regularly observes the condition of the sand accumulation section through the sight tube 26, and the sand discharge operation is carried out when the sand amount is deposited to be close to the sand removing shut-off valve 25.
(2) During the sand discharging operation, only the sand removing shutoff valve 25 is closed, the normal valve positions of other valves are kept, and the sand removing port 27 is opened for sand discharging. When the sand is deposited and inconvenient to discharge, the sand removing flushing port 28 is connected with a water source through a quick connector to help flush and discharge sand; after the sand removal is finished, the sand removal flushing port valve 28 and the sand removal port 27 blind plate are closed again, and the sand removal shutoff valve 25 is opened.
(3) During maintenance operation, the inlet shutoff valve 21, the outlet shutoff valve 24, the desanding shutoff valve 25 and the front and rear valves 31 and 34 of the liquid phase flowmeter are closed, the maintenance blowoff valve 35 is opened, and device maintenance work is performed after blowdown.
The working principle of the desanding and filtering unit is as follows:
(1) during normal operation, the inlet and outlet shutoff valve and the desanding shutoff valve are kept open, and the desanding flushing port and the desanding port are physically isolated. The gravel is deposited at the sand accumulation section, the gravel carried by partial gas is separated by conical filtration, the operator regularly observes the sand accumulation section condition through a sight tube, and when sand content is close to the sand removal shut-off valve, the sand discharge operation is carried out.
(2) When sand is discharged, the operation is carried out on line, normal sand removing and filtering are not influenced, only the sand removing shutoff valve is closed at the time, sand is discharged through the sand removing opening, when sand is deposited and inconvenient to discharge, a water source is connected through the quick joint of the sand removing flushing opening, and the valve of the flushing opening is opened to help flushing and discharging the sand; and after the sand removal is finished, closing the sand removal flushing port valve and the sand removal port blind plate again, and opening the sand removal shutoff valve.
(3) During maintenance operation, when the conical filter element is blocked, the differential pressure transmitter gives an alarm and prompts, the inlet and outlet shutoff valve and the desanding shutoff valve can be closed at the moment, the conical filter element can be taken out, the blockage can be cleaned, and meanwhile, when the sand content in the later period is extremely small, the conical filter element can be permanently taken away, so that the pressure loss is reduced.
The working principle of the separation metering unit is as follows:
(1) during normal operation, the inlet and outlet shutoff valves and the desanding shutoff valve are kept open, and the desanding flushing port and the desanding port are physically isolated; the liquid phase line is provided with an adjusting valve, liquid is discharged by adjusting the opening according to liquid level control, and the separated gas phase and liquid phase are respectively measured; the discharged gravel is deposited at the sand accumulation section, an operator regularly observes the condition of the sand accumulation section through a sight tube, and when sand content is close to a sand removal shut-off valve, sand discharge operation is carried out.
(2) When sand is discharged, the operation is carried out on line, normal sand removing and filtering are not influenced, only the sand removing shutoff valve is closed at the time, sand is discharged through the sand removing opening, when sand is deposited and inconvenient to discharge, a water source is connected through the quick joint of the sand removing flushing opening, and the valve of the flushing opening is opened to help flushing and discharging the sand; and after the sand removal is finished, closing the sand removal flushing port valve and the sand removal port blind plate again, and opening the sand removal shutoff valve.
(3) During maintenance operation, the inlet shutoff valve, the gas phase outlet shutoff valve, the desanding shutoff valve and the front and rear valves of the liquid phase flowmeter are closed, the maintenance blowoff valve is opened, and device maintenance work is carried out after blowdown.
Claims (7)
1. The utility model provides a shale gas degritting piece-rate system which characterized in that: comprises a desanding and filtering unit and a separating and metering unit; the sand removing and filtering unit comprises a sand removing and expanding pipe section and a sand removing branch pipe, wherein inlet and outlet shut-off valves are respectively arranged at the upstream and the downstream of the sand removing and expanding pipe section, a conical filtering element is arranged at the downstream of the sand removing and expanding pipe section, and a differential pressure alarm is arranged at the front and the rear of the conical filtering element; the separation metering unit comprises a separator, an inlet shutoff valve and a gas-phase outlet shutoff valve are respectively arranged on an inlet pipeline and a gas-phase outlet pipeline of the separator, a gas-phase flowmeter is arranged on a gas phase of the separator, a sewage discharge pipeline and a desanding branch pipe are arranged on a liquid phase of the separator, a liquid-phase outlet emergency shutoff valve, a liquid-phase flowmeter, a liquid-phase regulating valve and front and rear shutoff valves thereof are sequentially arranged on the sewage discharge pipeline, and an overhauling sewage discharge valve is arranged in parallel before the shutoff valve in front of the liquid-phase regulating valve and after the shutoff valve in rear of the liquid-phase regulating; the outlet shutoff valve of the desanding and filtering unit is connected with the inlet shutoff valve of the separation and metering unit; the sand removing filter unit and the sand removing branch pipes of the separation metering unit are respectively provided with a sight pipe, the upper end of the sight pipe is provided with a sand removing shutoff valve, and the lower end of the sight pipe is provided with a sand removing port.
2. The shale gas desanding and separating system as claimed in claim 1, wherein: the sand removal expanding pipe section is made of the same material as the upstream and downstream pipe sections, is horizontally installed, the large and small heads at the two ends are flush with the top, and the length of the two ends and the length of the upstream and downstream connecting pipe sections is more than or equal to 150 mm.
3. The shale gas desanding and separating system as claimed in claim 1, wherein: the sand removing branch pipe is vertically arranged relative to the sand removing expanding pipe section to form a T-shaped structure.
4. The shale gas desanding and separating system as claimed in claim 1, wherein: the sand removing branch pipes are obliquely arranged relative to the sand removing expanding pipe sections to form a Y-shaped structure.
5. The shale gas desanding and separating system as claimed in claim 1, wherein: the conical filter element is connected by a detachable flange.
6. The shale gas desanding and separating system as claimed in claim 1, wherein: the desanding branch pipe is provided with a desanding flushing port and is connected with a water source through a quick connector.
7. The shale gas desanding and separating system as claimed in claim 1, wherein: the fluid impact part at the inlet of the separator is provided with an anti-impact thickened plate, and the bottoms of the inlet and the outlet of the separator are provided with folded plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920721769.0U CN210217707U (en) | 2019-05-20 | 2019-05-20 | Shale gas desanding and separating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920721769.0U CN210217707U (en) | 2019-05-20 | 2019-05-20 | Shale gas desanding and separating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210217707U true CN210217707U (en) | 2020-03-31 |
Family
ID=69926686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920721769.0U Active CN210217707U (en) | 2019-05-20 | 2019-05-20 | Shale gas desanding and separating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210217707U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130868A (en) * | 2019-05-20 | 2019-08-16 | 中国石油工程建设有限公司 | A kind of shale gas desanding separation system and method |
| CN111663931A (en) * | 2020-06-16 | 2020-09-15 | 中国地质大学（武汉） | Portable three-phase separation device for drainage port of coal-bed gas well and measurement method |
| CN112693898A (en) * | 2020-12-22 | 2021-04-23 | 上海琮祥机械设备有限公司 | Negative pressure conveying system for test tube |
-
2019
- 2019-05-20 CN CN201920721769.0U patent/CN210217707U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130868A (en) * | 2019-05-20 | 2019-08-16 | 中国石油工程建设有限公司 | A kind of shale gas desanding separation system and method |
| CN111663931A (en) * | 2020-06-16 | 2020-09-15 | 中国地质大学（武汉） | Portable three-phase separation device for drainage port of coal-bed gas well and measurement method |
| CN112693898A (en) * | 2020-12-22 | 2021-04-23 | 上海琮祥机械设备有限公司 | Negative pressure conveying system for test tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110130868A (en) | A kind of shale gas desanding separation system and method | |
| CN110700800A (en) | A shale gas cluster well gas gathering platform process flow and method | |
| CN206828463U (en) | Natural gas desander | |
| CN212430456U (en) | Integrated integrated system suitable for natural gas collection | |
| CN112495064B (en) | A shale gas horizontal cyclone desander | |
| CN208137922U (en) | The closed pressure release injection allocation apparatus of integral type environmental protection | |
| CN106884435A (en) | Foundation pit dewatering and recharging intelligent control system with touch display panel | |
| CN111594760A (en) | All-in-one integrated unit for natural gas gathering | |
| CN104405361B (en) | Skid-mounted type open flow gas recovery system and recovery method | |
| CN213708251U (en) | Skid-mounted sand removing device | |
| CN205314966U (en) | Measurement system is retrieved to skid -mounted fracturing open flow gas well mouth | |
| CN207960544U (en) | A kind of backwash desanding manifold apparatus | |
| RU2393336C1 (en) | Connections of wellhead and surface equipment of coal-methanol well (versions) | |
| CN216841603U (en) | Ultrahigh-pressure intelligent control cyclone sand remover | |
| CN104689931B (en) | A high-pressure gas-liquid separation method | |
| CN105709544A (en) | High-efficiency fine defoaming and desanding separator for natural gas | |
| CN221062152U (en) | Skid-mounted module of double desander | |
| CN218624184U (en) | Quick production system of shale gas | |
| CN215565889U (en) | Oil recovery well head desander | |
| CN207145190U (en) | Air compressor machine blowdown apparatus and air compressor machine | |
| CN218759842U (en) | Novel shale gas two-phase flow metering automatic desanding and separating device | |
| RU112937U1 (en) | INSTALLATION FOR MEASURING THE DEBIT OF OIL WELL PRODUCTS | |
| CN112280606B (en) | Horizontal separation metering sledge and separation metering method thereof | |
| CN205073747U (en) | From basket pipe -line filter of blowdown | |
| CN222414816U (en) | Skid-mounted gas wellhead desanding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210302 Address after: No. 6, Sichuan hi tech Zone, sublime Road, Chengdu, Sichuan Patentee after: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: No. 6, Sichuan hi tech Zone, sublime Road, Chengdu, Sichuan Patentee before: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. |