CN204627445U - The shunting connector of double layer continuous oil pipe - Google Patents
The shunting connector of double layer continuous oil pipe Download PDFInfo
- Publication number
- CN204627445U CN204627445U CN201520315400.1U CN201520315400U CN204627445U CN 204627445 U CN204627445 U CN 204627445U CN 201520315400 U CN201520315400 U CN 201520315400U CN 204627445 U CN204627445 U CN 204627445U
- Authority
- CN
- China
- Prior art keywords
- connector body
- coiled tubing
- shunting connector
- oil pipe
- shunting
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model discloses a kind of shunting connector of double layer continuous oil pipe, comprise columniform shunting connector body, axially inwardly form three sections of circular internal channels from the top of shunting connector body, the outer coiled tubing of double layer continuous oil pipe and internal layer coiled tubing ride on two steps respectively, the tube wall of outermost first paragraph internal channel is formed fixed outer layer coiled tubing first in screw thread and install the first mounting groove of sealing ring, the tube wall of second segment internal channel is formed fixing internal layer coiled tubing second in screw thread and install the second mounting groove of sealing ring, the flow channel of through connector body sidewall is formed at the sidewall of the 3rd section of internal channel, the bottom extending to shunting connector body to the step from outer coiled tubing top pressure along shunting connector body shaft is formed with the through outflow bypass communicated with outer coiled tubing, realize the function that fluid flows out from outer coiled tubing and flows into from internal layer coiled tubing, meet double layer continuous oil pipe band tool operation demand.
Description
Technical field
The utility model relates to oil-gas field development technical field, for double layer continuous oil pipe and every construction function instrument connection and realize the bypassing circulation of liquid jaw elements inside and outside double layer continuous oil pipe, be the special tool of double layer continuous oil pipe operation.
Background technology
During the downhole tool applications such as double layer continuous oil pipe connecting screw rod brill, inside and outside two-layer coiled tubing need be connected with downhole tool string, also need to set up circulation canal between inside and outside two-layer coiled tubing simultaneously, make the fluid flowed out by the outer and interior pipe ring sky of double layer continuous oil pipe, ground (circulation of double layer continuous oil pipe inner and outer pipes) is back to, to carry out the small particle such as landwaste, impurity along this instrument inner pipe passway after bottom tool acting.
Conventionally, also there is no such connector.
Utility model content
Technical problem to be solved in the utility model is, provides a kind of screw thread mode that adopts to be connected with double layer continuous oil pipe and downhole tool, and the shunting connector of the double layer continuous oil pipe of design cycle passage.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of shunting connector of double layer continuous oil pipe, comprise columniform shunting connector body, three sections of circular internal channels with 2 grades of steps that one section of diameter reduces successively are axially inwardly formed from the top of shunting connector body, the outer coiled tubing of double layer continuous oil pipe and internal layer coiled tubing ride on two steps respectively, the tube wall of outermost first paragraph internal channel is formed fixed outer layer coiled tubing first in screw thread and install the first mounting groove of sealing ring, the tube wall of second segment internal channel is formed fixing internal layer coiled tubing second in screw thread and install the second mounting groove of sealing ring, the top of the 3rd section of the most inboard internal channel is positioned at inside shunting connector body, the flow channel of through connector body sidewall is formed at the sidewall of the 3rd section of internal channel, the bottom extending to shunting connector body along shunting connector body shaft to the step from outer coiled tubing top pressure in shunting connector body is formed with the through outflow bypass communicated with outer coiled tubing, the thread of connecting downhole instrument is provided with at the lower end outer wall of shunting connector body.
Described flow channel is two, along the formed symmetrical of shunting connector body.
Described flow channel tilts to the bottom of shunting connector body.
Described outflow bypass is two, and be the circular arc passage matched with shunting connector body shape, each outflow bypass lays respectively between two flow channels.
The port of export being positioned at the outflow bypass of the bottom of shunting connector body is formed with extension diameter section.
The beneficial effects of the utility model are: be connected with inside and outside two-layer coiled tubing and associated downhole tool by thread, circulation canal on it, realize the function that fluid flows out from outer coiled tubing and flows into from internal layer coiled tubing, meet double layer continuous oil pipe band tool operation demand, carry out such as negative pressure sand washing, bore the construction operations such as mill.
Accompanying drawing explanation
Fig. 1 is the structural representation of the shunting connector of double layer continuous oil pipe of the present utility model.
Fig. 2 is the schematic cross section of the shunting connector of double layer continuous oil pipe of the present utility model.
Fig. 3 is that the using state of the shunting connector of double layer continuous oil pipe of the present utility model flows to schematic diagram.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
As Fig. 1, shown in 2, the shunting connector of double layer continuous oil pipe of the present utility model, comprise columniform shunting connector body 10, three sections of circular internal channels with 2 grades of steps that one section of diameter reduces successively are axially inwardly formed from the top of shunting connector body 10, the outer coiled tubing of double layer continuous oil pipe and internal layer coiled tubing ride on two steps respectively, the tube wall of outermost first paragraph internal channel is formed fixed outer layer coiled tubing first in screw thread 2 and install the first mounting groove 1 of sealing ring, the tube wall of second segment internal channel is formed fixing internal layer coiled tubing second in screw thread 4 and install the second mounting groove 3 of sealing ring, the top of the 3rd section of the most inboard internal channel 5 is positioned at inside shunting connector body 10, the flow channel 9 of through connector body 10 sidewall is formed at the sidewall of the 3rd section of internal channel 5, the bottom axially extending to shunting connector body 10 from the step of outer coiled tubing top pressure along shunting connector body 10 in shunting connector body 10 is formed with the through outflow bypass 6 communicated with outer coiled tubing, the thread 7 of connecting downhole instrument is provided with at the lower end outer wall of shunting connector body 10.
Described flow channel 9 is two, along the formed symmetrical of shunting connector body 10.
Described flow channel 9 tilts to the bottom of shunting connector body 10.
Described outflow bypass 6 is two, and be the circular arc passage with shunting connector body 10 mating shapes, each outflow bypass 6 lays respectively between two flow channels 9.
For the ease of the outflow of liquid, the port of export being positioned at the outflow bypass 6 of the bottom of shunting connector body 10 is formed with extension diameter section 8.
The shunting connector of double layer continuous oil pipe of the present utility model, is mainly used in the operation of oil gas field double layer continuous oil pipe, the shunting of two-layer coiled tubing fluid and channel seal inside and outside when being connected with downhole tool for double layer continuous oil pipe.Screw thread on the shunting connector of double layer continuous oil pipe can with inside and outside two-layer coiled tubing and underground operation tool be connected and seal, circulation canal on device, highly pressurised liquid can be realized and flow out the function flowed into from internal layer coiled tubing from outer coiled tubing, meet such as negative pressure sand washing, bore the requirement of the construction operations such as mill.
As shown in Figure 3, the shunting connector of double layer continuous oil pipe of the present utility model is by screwed connection ectonexine coiled tubing and corresponding tool, this connector has bypassing circulation passage, forms bypassing circulation and the expanding channels sealing of downhole fluid in inside and outside two-layer coiled tubing.During use, highly pressurised liquid is injected into outer coiled tubing and internal layer coiled tubing annular space through ground pump truck, enter in the outflow bypass 6 in the shunting connector of double layer continuous oil pipe, enter again in the such as function such as screw drill, negative pressure tool instrument and fulfil assignment, its returning fluid (carrying sand formation cuttings or milling chip) returns, enters the 3rd section of internal channel 5 through flow channel 9 and flow in internal layer coiled tubing and return to ground.Liquid, by flowing out bypass 6, entering the 3rd section of internal channel 5 formation circulation through flow channel 9, realizes the circulation in double layer continuous oil pipe.Highly pressurised liquid can be realized by this connector and flow out the function flowed into from internal layer coiled tubing from outer coiled tubing, meet such as negative pressure sand washing, bore the requirement of the construction operations such as mill.
During onsite application, first internal layer coiled tubing by second segment internal channel second in screw thread 4 be connected with this connector, then outer coiled tubing is connected with this connector by screw thread 2 in first of first paragraph internal channel, then downhole tool is attached thereto by thread 7.
During operation, ground high pressure pump truck outer layers coiled tubing injects highly pressurised liquid.Highly pressurised liquid enters from outer coiled tubing and flows out bypass 6, and then flow out from the passage of downhole tool, the highly pressurised liquid then flowed out enters into flow channel 9 from Oil/gas Well sleeve pipe, then is flow in internal layer coiled tubing by the 3rd section of internal channel 5 and return to ground.
In sum, content of the present utility model is not limited in the above-described embodiment, knowledgeable people in same area can propose other embodiment easily within technological guidance's thought of the present utility model, but this embodiment is all included within scope of the present utility model.
Claims (5)
1. the shunting connector of a double layer continuous oil pipe, it is characterized in that, comprise columniform shunting connector body (10), three sections of circular internal channels with 2 grades of steps that one section of diameter reduces successively are axially inwardly formed from the top of shunting connector body (10), the outer coiled tubing of double layer continuous oil pipe and internal layer coiled tubing ride on two steps respectively, the tube wall of outermost first paragraph internal channel is formed fixed outer layer coiled tubing first in screw thread (2) and install first mounting groove (1) of sealing ring, the tube wall of second segment internal channel is formed fixing internal layer coiled tubing second in screw thread (4) and install second mounting groove (3) of sealing ring, the top of the 3rd section of the most inboard internal channel (5) is positioned at shunting connector body (10) the inside, the flow channel (9) of through connector body (10) sidewall is formed at the sidewall of the 3rd section of internal channel (5), the bottom axially extending to shunting connector body (10) from the step of outer coiled tubing top pressure along shunting connector body (10) in shunting connector body (10) is formed with the through outflow bypass (6) communicated with outer coiled tubing, the thread (7) of connecting downhole instrument is provided with at the lower end outer wall of shunting connector body (10).
2. the shunting connector of double layer continuous oil pipe according to claim 1, is characterized in that, described flow channel (9) is two, along the formed symmetrical of shunting connector body (10).
3. the shunting connector of double layer continuous oil pipe according to claim 2, is characterized in that, described flow channel (9) tilts to the bottom of shunting connector body (10).
4. the shunting connector of the double layer continuous oil pipe according to Claims 2 or 3, it is characterized in that, described outflow bypass (6) is two, for the circular arc passage with shunting connector body (10) mating shapes, each outflow bypass (6) lays respectively between two flow channels (9).
5. the shunting connector of double layer continuous oil pipe according to claim 4, is characterized in that, the port of export being positioned at the outflow bypass (6) of the bottom of shunting connector body (10) is formed with extension diameter section (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520315400.1U CN204627445U (en) | 2015-05-15 | 2015-05-15 | The shunting connector of double layer continuous oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520315400.1U CN204627445U (en) | 2015-05-15 | 2015-05-15 | The shunting connector of double layer continuous oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627445U true CN204627445U (en) | 2015-09-09 |
Family
ID=54046485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520315400.1U Withdrawn - After Issue CN204627445U (en) | 2015-05-15 | 2015-05-15 | The shunting connector of double layer continuous oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204627445U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832110A (en) * | 2015-05-15 | 2015-08-12 | 中国石油集团渤海钻探工程有限公司 | Flow distribution connector of double-layer continuous oil tube |
-
2015
- 2015-05-15 CN CN201520315400.1U patent/CN204627445U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832110A (en) * | 2015-05-15 | 2015-08-12 | 中国石油集团渤海钻探工程有限公司 | Flow distribution connector of double-layer continuous oil tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150909 Effective date of abandoning: 20171114 |