CN204877401U - Ware is adopted to current -limiting branch - Google Patents
Ware is adopted to current -limiting branch Download PDFInfo
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- CN204877401U CN204877401U CN201520617734.4U CN201520617734U CN204877401U CN 204877401 U CN204877401 U CN 204877401U CN 201520617734 U CN201520617734 U CN 201520617734U CN 204877401 U CN204877401 U CN 204877401U
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- side direction
- feed pathway
- direction feed
- adopted
- lower contact
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Abstract
The utility model relates to a ware is adopted to current -limiting branch, including the top connection, the lower clutch, set up the side direction liquid inlet channel on the lower clutch and overflow the passageway with side direction liquid inlet channel does not communicate, check valve with end screw thread connection on the lower clutch, install the detachable glib talker in side direction liquid inlet channel and/or the upper end that overflows the passageway, can change the glib talker of different internal diameters according to the pressure differential of every producing horizon, compare with high water -bearing stratum of regulation and control high energy and mentally deficient extraction of hanging down the product liquid in water -bearing stratum, thereby increase the product liquid in mentally deficient low water -bearing stratum, the product liquid that restraines the high water -bearing stratum of high energy, and then accuse water increases oil, the well yield improves.
Description
Technical field
The utility model relates to a kind of oil well multilayer and divides the instrument of adopting, and is specifically related to a kind of current limliting and divides and adopt device.
Background technology
Oil field is carried out normal employing in multilayer system development process and is generally closed the method for adopting, in the exploitation middle and later periods, because each layer is moisture, the difference of strata pressure, permeability, there is contradiction in interlayer, for improving recovery ratio, need restriction high energy high aquifer formation production fluid, give full play to the liquid-producing capacity in low aquifer, normal employing layering mixes out production practice.Although existing separate extracting pump double-layer separate excavating technology technology, efficiently solve the interlayer interference of double layer commingled production oil well, but divide producing well for more than three layers and three layers multilayers, still there is serious interlayer interference, have no idea at utmost to play each payzone production capacity, realize the raising of well yield.Meanwhile, because separate extracting pump plunger is upper and lower reducing double plunger, sucker rod uplink and downlink resistance strengthens, and often occurs the phenomenons such as valve cover is disconnected de-, side-abrasion of rod string, causes separate extracting pump pump detection period shorter than conventional pump, add operating cost.The water flooding middle and later periods, due to interlayer physical property and injection-production ratio difference, cause some producing zone strata pressures high, the moisture height of production fluid, is called high energy high aquifer formation, some producing zones, and strata pressure is low, and production fluid is moisture low, is called the low aquifer of low energy.Chinese patent literature CN104514530A provides a kind of bridge-type being applicable to multilayer separate zone production and divides and adopt device, comprise top connection and lower contact, in the middle part of lower contact, outer wall is connected with the filter ruffle excessively of flowing hole, lower contact top is provided with the center single flow channel being communicated with filter ruffle flowing hole, described center single flow channel and side direction feed pathway, the bridge opening excessively not being communicated with center single flow channel is evenly equipped with in lower contact barrel, described bridge opening and flow channels excessively, single flow channel top, center connects ball seat main body, described ball seat main body and one way valve, in ball seat main body, step is provided with the ball seat sealed by sealing ring, steel ball stabilizer and steel ball is provided with above ball seat, ball seat main body top is connected with steel ball guard shield, be applicable to the exploitation of two-layer and two-layer above oil reservoir, but the flow differential pressure of the production fluid of each producing zone is different, the extraction ratio of high energy high aquifer formation production fluid and low energy low aquifer production fluid can not be regulated and controled, cause in the mixing production fluid of extraction moisture more, well yield is lower.
Utility model content
For solving problems of the prior art, the utility model provides a kind of current limliting that can regulate and control the extraction ratio of high energy high aquifer formation and low energy low aquifer production fluid and divides and adopt device.
The utility model adopts following technical scheme: a kind of current limliting is divided and adopted device, and comprise lower contact, be arranged at side direction feed pathway in lower contact and flow channels, described side direction feed pathway upper end and/or flow channels upper end are provided with dismountable oil nozzle.
Described oil nozzle upper end is provided with one way valve, and described one way valve comprises valve seat and valve bonnet, and described oil nozzle is sandwiched and fixed between the valve seat of one way valve and lower contact.
Described oil nozzle is installed on side direction feed pathway upper end, described oil nozzle is T-type structure, comprises lower end for being plugged in insertion end in side direction feed pathway, for covering the central through hole being communicated with side direction feed pathway and one way valve that the positive stop end that is affixed on side direction feed pathway upper end extends along the vertical direction with axis.
The oil-out of described one way valve is arranged on the sidewall of valve bonnet.
Described oil nozzle is ceramic materials.
The beneficial effects of the utility model are: be provided with dismountable oil nozzle in the upper end of side direction feed pathway and/or flow channels, the oil nozzle of different inner diameters can be changed according to the pressure reduction of each producing zone, to regulate and control the extraction ratio of high energy high aquifer formation and low energy low aquifer production fluid, thus increase the production fluid in the low aquifer of low energy, suppress the production fluid of high energy high aquifer formation, and then water-control oil-increasing, improve well yield.
Accompanying drawing explanation
Fig. 1 is that a kind of current limliting of the utility model divides of adopting device to be the structural representation of embodiment.
Detailed description of the invention
A kind of current limliting divide adopt device embodiment as shown in Figure 1, comprise top connection 1 and lower contact 9, described top connection 1 inner upper end is provided with the female thread structure be connected with oil pipe, described top connection 1 interior lower end internal thread is connected with the lower contact 9 by two-layer first axial sealing ring sealing 7, outside, described lower contact 9 lower end is provided with the external thread structure be connected with oil pipe, in the middle part of lower contact 9, outer wall is provided with side direction inlet 11, lower contact 9 top is provided with the side direction feed pathway 10 of the L-type being communicated with side direction inlet 11 and top connection 1, described lower contact 9 outer wall is provided with filter mantle 8 in side direction inlet 11 place, described lower contact 9 upper external screw thread is connected with the one way valve sealed by two-layer second axial sealing ring 6, one way valve comprises valve ball 3, valve bonnet 2 and the valve seat 4 be threaded with lower contact 9, described side direction feed pathway 10 upper end is provided with the ceramic nozzle tip 5 being communicated with one way valve, ceramic nozzle tip 5 is T-type structure, comprise lower end for being plugged in the insertion end in side direction feed pathway 10, for covering the central through hole being communicated with side direction feed pathway and one way valve that the positive stop end that is affixed on side direction feed pathway 10 upper end extends along the vertical direction with axis, ceramic nozzle tip 5 deck is in side direction feed pathway 10, ceramic nozzle tip 5 sandwiched is fixed to the upper end of lower contact 9 by valve seat 4, lower contact 9 top is provided with and is communicated in, lower contact inner chamber and the flow channels 12 be not communicated with side direction feed pathway 11, the axis direction of described flow channels 12 extends along the vertical direction, described valve bonnet 4 sidewall has discharge opeing seam 13, not only make production fluid enter flow channels 10 and then upper and lower payzone production fluid is collected in oil pipe, effectively prevent the blocking to valve ball 3 and ceramic nozzle tip 5 of foul in oil pipe simultaneously, certainly in other embodiments, also discharge opeing seam can be offered in the upper end of valve bonnet 2.Eye diameter on described filter mantle 8 is less than the internal diameter of ceramic nozzle tip 5, can effectively prevent the foul approaching side in production fluid from blocking ceramic nozzle tip 5 to feed pathway 10.In other embodiments, oil nozzle also can be installed on the upper end of flow channels.
During production, the production fluid of every layer enters the side direction feed pathway 11 of lower contact 9 by the eyelet on corresponding filter mantle 8, production fluid flows through ceramic nozzle tip 5 by the side direction feed pathway 11 of " L " type, arrive valve seat 4 centre bore again, valve seat 4 is placed valve ball 3 production fluid and push valve ball 3 open, oil pipe is flow to by valve bonnet 2, this layer of production fluid enters oil pipe by the flow channels 10 of lower contact 9, if mixed liquor flows into valve bonnet 2 downwards, valve ball 3 falls back on the centre bore of valve seat 4 under the promotion of liquid stream, close side direction feed pathway 11, like this, mixed liquor would not flow back to mined bed.
When described instrument uses, each producing zone configures this current limliting and divides and adopt device, current limliting divides the ceramic nozzle tip 5 adopted in device can select the ceramic nozzle tip of different inner diameters according to producing zone flow differential pressure, and then control respective layer Liquid output, two current limlitings are divided to adopt under between device and are entered packer, current limliting is divided and is adopted lower contact on device and be connected with oil pipe by screw thread, this current limliting is divided and is adopted device and can realize carrying out regulating multi-zone production rate to multilayer, reduce the interference between each producing zone, simultaneously owing to can change according to the pressure reduction of producing zone the ceramic nozzle tip installing different inner diameters, the production fluid of high energy high aquifer formation can be suppressed, take the production fluid of low energy low water content layer more, and then water-control oil-increasing, improve well yield.
In the present embodiment, oil nozzle is ceramic nozzle tip, be plugged in side direction feed pathway by the insertion end of ceramic nozzle tip, spacing end cap is affixed on side direction feed pathway upper end, again by its sandwiched being fixed between the two with the valve seat be threaded of lower contact, oil nozzle also can adopt metal oil nozzle in other embodiments, and metal oil nozzle outer setting has external screw thread, is threadedly connected on the inwall of side direction feed pathway.
Claims (5)
1. current limliting is divided and is adopted a device, comprises lower contact, is arranged at side direction feed pathway in lower contact and flow channels, it is characterized in that: described side direction feed pathway upper end and/or flow channels upper end are provided with dismountable oil nozzle.
2. a kind of current limliting according to claim 1 is divided and is adopted device, it is characterized in that: described oil nozzle upper end is provided with one way valve, and described one way valve comprises valve seat and valve bonnet, and described oil nozzle is sandwiched and fixed between the valve seat of one way valve and lower contact.
3. a kind of current limliting according to claim 1 is divided and is adopted device, it is characterized in that: described oil nozzle is installed on side direction feed pathway upper end, described oil nozzle is T-type structure, comprises lower end for being plugged in insertion end in side direction feed pathway, for covering the central through hole being communicated with side direction feed pathway and one way valve that the positive stop end that is affixed on side direction feed pathway upper end extends along the vertical direction with axis.
4. a kind of current limliting according to claim 2 is divided and is adopted device, it is characterized in that: the oil-out of described one way valve is arranged on the sidewall of valve bonnet.
5. a kind of current limliting according to any one of claim 1-3 is divided and is adopted device, it is characterized in that: described oil nozzle is ceramic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520617734.4U CN204877401U (en) | 2015-08-17 | 2015-08-17 | Ware is adopted to current -limiting branch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520617734.4U CN204877401U (en) | 2015-08-17 | 2015-08-17 | Ware is adopted to current -limiting branch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204877401U true CN204877401U (en) | 2015-12-16 |
Family
ID=54821784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520617734.4U Expired - Fee Related CN204877401U (en) | 2015-08-17 | 2015-08-17 | Ware is adopted to current -limiting branch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204877401U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153239A (en) * | 2020-01-23 | 2021-07-23 | 中国石油天然气股份有限公司 | From branch of control liquid production volume adopt ware and tubular column |
-
2015
- 2015-08-17 CN CN201520617734.4U patent/CN204877401U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153239A (en) * | 2020-01-23 | 2021-07-23 | 中国石油天然气股份有限公司 | From branch of control liquid production volume adopt ware and tubular column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20190817 |