CN207905792U - Long-acting test technology tubing string under a kind of offshore oilfield high temperature well - Google Patents
Long-acting test technology tubing string under a kind of offshore oilfield high temperature well Download PDFInfo
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- CN207905792U CN207905792U CN201721214910.5U CN201721214910U CN207905792U CN 207905792 U CN207905792 U CN 207905792U CN 201721214910 U CN201721214910 U CN 201721214910U CN 207905792 U CN207905792 U CN 207905792U
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- oil pipe
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Abstract
The utility model discloses long-acting test technology tubing strings under a kind of offshore oilfield high temperature well, it is linked in sequence by multiple tubular elements, includes mainly oil pipe suspension device assembly, epimere oil pipe column, test cable, Y types traversing device, hypomere oil pipe column and base fixture；When carrying out heavy crude heat extraction, the utility model can be by testing cable by downhole temperature and pressure parameter continuous transmission to well head and ground demodulation equipment, long-acting test under high temperature well is realized, data support is provided for the evaluation and optimization of thick oil thermal extraction oil reservoir scheme and process program.
Description
Technical field
The utility model is related to oil field well process pipe strings, more particularly to long-acting test under a kind of offshore oilfield high temperature well
Process pipe string.
Background technology
During oil well carries out heavy crude heat extraction, the data such as real-time temperature and pressure in underground are to oil reservoir scheme and technique
The important evidence that scheme is evaluated and optimized.
The all horizontal wells of offshore oilfield thick oil thermal extraction at present, and existing well head and the well control tool of underground are at work
It is empty inside the tubing string at position where it is required that.If test cable is fully disposed in o exterior and with tubing string tripping in simultaneously, in pipe
Cable is tested when column tripping in horizontal segment, at horizontal segment to be easy to fail because of damage；If test cable is fully disposed in inside tubing string
And tripping in when in tubing string will at work require after the completion of tubing string tripping in because that cannot meet well head and underground well control tool
Make well control thrashing for empty requirement inside its position tubing string, causes production safety risk.
In the case where existing measuring technology can not carry out the present situation of the long-acting test in underground, steel wire or coiled tubing can only passed through
The mode of tripping in testing tool obtains the temperature and pressure data in the short time of underground designated position, and data volume is limited, operation journey
Sequence is complicated, and production safety risk is high, while also limiting the fast speed development of offshore oilfield heavy crude heat extraction technology.
Invention content
The characteristics of the purpose of this utility model is tubular column structure existing in conjunction with offshore oilfield, provides a kind of achievable offshore oil
The process pipe string of long-acting test under the thick oil thermal extraction high temperature well of field, in the premise for not changing prior art and tool work condition
Under, Y type traversing device implementation above annular spaces temperature, the long-acting test of pressure, Y type traversing device following implemented reservoir temperature, pressure
Long-acting test, solve the problems, such as that offshore oilfield downhole temperature and pressure parameter during heavy crude heat extraction are unable to long term monitoring.
Technical solution used by the utility model is：Long-acting test technology tubing string under a kind of offshore oilfield high temperature well, by
Multiple tubular elements are sequentially formed by connecting.
The tubing string is by oil pipe suspension device assembly, epimere oil pipe column, test cable, Y types traversing device, hypomere oil pipe column
And base fixture composition.
The oil pipe suspension device assembly mainly by boll-weevil hanger and is passed through seal assembly A and is formed.
Boll-weevil hanger upper end outer diameter is equipped with to be equipped with and the epimere oil pipe for the internal thread lower end of running string
The internal thread of tubing string connection, side wall are equipped with the axially extending bore for passing through the test cable；The boll-weevil hanger lateral through aperture
Both ends are respectively provided with the sealing boll-weevil hanger and the described of test cable passes through seal assembly A.
The Y types traversing device by oil pipe variable buckle, hanging lock ring assemblies, pass through seal assembly B, Y type and pass through connector, lower end
Connector forms.
The seal assembly B that passes through is made of seal pressure cap, 2 groups of grafting pressure ring assemblies and packing seal.
The Y types pass through upper end of joint and are equipped with the internal thread being connect with the oil pipe variable buckle, and lower end is equipped with and the lower end
The size of the internal thread of connector connection, lower end internal thread is more than upper end internal thread and eccentric with upper end internal thread；The Y types pass through
Connector upper portion side wall is equipped with for passing through the axially extending bore and seal chamber that pass through seal assembly B described in the test cable and installation
Room, the through-hole and chamber, which pass through connector side wall across the Y types and pass to the Y types, passes through connector inner cavity；The Y types, which pass through, to be connect
Head upper portion side wall is used to install the chamber upper end for passing through seal assembly B and is equipped with the internal thread being connect with the seal pressure cap,
Equipped with grafting pressure ring group described in 2 groups below the seal pressure cap in chamber, chamber is interior to be set between grafting pressure ring group described in 2 groups
There is the packing seal.
The base fixture is made of fixed pedestal and top cap, pressure ring, positioning core axle, pin and hook；The top
Cap, pressure ring, positioning core axle, pin and the pairs of connected components of hook groups.
The fixed pedestal upper end is equipped with the internal thread being connect with the hypomere oil pipe column, and lower end is equipped with for facilitating pipe
The oblique angle of column tripping in, lower inner diameter is equipped with connects radial annular groove for the hook, and outer diameter is equipped with the radial direction for removing hook
Through-hole.
The pressure ring upper end is equipped with internal thread and shoulder for the fixed and positioned top cap, and middle part outer diameter is equipped with radial
The flowing hole of perforation, lower inner diameter are equipped with the inner diameter shoulder for positioning the positioning core axle.
The positioning core axle upper surface is equipped with the axially extending bore for fixing the test cable, and upper end outer diameter is equipped with for fixed
The outer diameter shoulder of the position pressure ring, middle part and lower hollow, middle part outer diameter are equipped with radial pin hole.
The hook top is equipped with to radial pin hole, and lower end is equipped with can be to the extroversion hook of contract；
Coaxial package is described to link up with coaxial sleeve from bottom to top in positioning core axle top outer diameter from bottom to top for the pressure ring
Loaded on outer diameter in the middle part of the positioning core axle；The hook is fixedly connected with the positioning core axle by the pin；The hook
(and the outer diameter shoulder of the positioning core axle upper end is connect with the inner diameter shoulder axial restraint of the pressure ring upper end.
The test cable lower end, which from top to bottom sequentially passes through the hanging lock ring assemblies, passes through seal assembly B and Y type passes through
Connector, and lower end is fixedly connected with the positioning core axle；The test cable upper end passes through the boll-weevil hanger side from the bottom to top
Wall axially extending bore and 2 groups pass through seal assembly A.
In the design of string pipe, the Y types traversing device is located at pit shaft horizontal segment or more.
The utility model has the beneficial effects that：It the characteristics of the utility model combination offshore oilfield existing tubular column structure, provides
The process pipe string of long-acting test is not changing compared with original technology under a kind of achievable offshore oilfield thick oil thermal extraction high temperature well
Under the premise of becoming pit shaft and main body string size, whole temperature resistant grade is improved, thick oil thermal extraction can be met simultaneously and routine is cold
The requirement of well is adopted, there is wider applicability；In test cable goes into the well operation process, this patent tubing string can be protected effectively
The test cable of tripping in horizontal segment is protected, operational security is higher.
Description of the drawings
Attached drawing 1：Long-acting test technology tubular column structure figure under the utility model high temperature well
Attached drawing 2：The utility model boll-weevil hanger assembly assumption diagram
Attached drawing 3：The utility model Y type traversing device structure charts
Attached drawing 4：Pass through seal assembly B structure figure
Attached drawing 5：The utility model base fixture structure chart
Attached drawing marks：
(1) oil pipe suspension device assembly；(1-1) boll-weevil hanger；(1-2) passes through seal assembly A compositions；(2) epimere oil pipe
Tubing string；(3) cable is tested；(4) Y types traversing device；(4-1) oil pipe variable buckle；(4-2) hanging lock ring assemblies；(4-3) passes through sealing
Component B；(4-3-1) seal pressure cap；
(4-3-2) grafting pressure ring assembly；(4-3-3) packing seal；(4-4) Y types pass through connector；
End connector under (4-5)；(4-6) sealed chamber；(5) hypomere oil pipe column；(6) base fixture；(6-1) is fixed
Pedestal；
(6-2) top cap；(6-3) pressure ring；(6-4) positioning core axle；(6-5) pin；(6-6) is linked up with.
Specific implementation mode
The utility model will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, long-acting test technology tubing string under a kind of offshore oilfield high temperature well, is sequentially connected by multiple tubular elements
It forms, includes mainly oil pipe suspension device assembly (1), epimere oil pipe column (2), test cable (3), Y types traversing device (4), hypomere
Oil pipe column (5) and base fixture (6).Wherein, the test cable (3) can carry out reservoir temperature section, pressure is supervised in real time
It surveys, oil jacket annular space temperature can be carried out, pressure monitors in real time.It selects thermocouple assay cable that can realize that multi-point temperature monitors in real time, selects
It can realize that continuous temperature point, multipoint pressure monitor in real time with test optical fiber cable.
As shown in Fig. 2, the oil pipe suspension device assembly (1) mainly by boll-weevil hanger (1-1), pass through seal assembly A groups
It is formed at (1-2).
Boll-weevil hanger (1-1) upper end outer diameter is equipped with to be equipped with and the epimere for the internal thread lower end of running string
The internal thread of oil pipe column (2) connection, side wall are equipped with the axially extending bore for passing through the test cable (3)；The oil pipe suspension
Device (1-1) axially extending bore both ends are respectively provided with the sealing boll-weevil hanger (1-1) and described test the described of cable (3)
Pass through seal assembly A.
As shown in figure 3, the Y types traversing device by oil pipe variable buckle (4-1), hanging lock ring assemblies (4-2), pass through sealing group
Part B (4-3), Y types pass through connector (4-4), lower end connector (4-5) composition.
As shown in figure 4, the seal assembly B (4-3) that passes through is by seal pressure cap (4-3-1), 2 groups of grafting pressure ring assembly (4-
3-2) formed with packing seal (4-3-3).
As shown in figure 3, the Y types, which pass through the upper end connector (4-4), is equipped with the interior spiral shell being connect with the oil pipe variable buckle (4-1)
Line, lower end are equipped with the internal thread that connect with the lower end connector (4-5), the size of lower end internal thread more than upper end internal thread and with
Upper end internal thread is eccentric；The Y types pass through connector (4-4) upper portion side wall and are equipped with for passing through the test cable (3) and installation institute
The axially extending bore for passing through seal assembly B (4-3) and sealed chamber (4-6) are stated, the through-hole and sealed chamber (4-6) pass through the Y
Type, which passes through connector (4-4) side wall and passes to the Y types, passes through connector inner cavity；The Y types pass through connector upper portion side wall for installing
The chamber upper end for passing through seal assembly B (4-3) is equipped with the internal thread being connect with the seal pressure cap (4-3-1), described to wear
Equipped with grafting pressure ring group (4-3- described in 2 groups below the seal pressure cap (4-3-1) more in the chamber of seal assembly B (4-3)
2) packing seal (4-3-3), is equipped in chamber between grafting pressure ring group (4-3-2) described in 2 groups.
As shown in figure 5, the base fixture (6) is by fixed pedestal (6-1) and top cap (6-2), pressure ring (6-3), fixed
Position mandrel (6-4), pin (6-5) and hook (6-6) composition；The top cap (6-2), pressure ring (6-3), positioning core axle (6-4), pin
(6-5) and hook (6-6) composition are followed closely to connected components.
Fixed pedestal (6-1) upper end is equipped with the internal thread being connect with the hypomere oil pipe column (5), and lower end, which is equipped with, to be used
In the oblique angle for facilitating tubing string tripping in, 40 °~50 ° of oblique angle gradient, lower inner diameter is equipped with radial for the hook (6-6) connection
Annular groove, outer diameter are equipped with the radial through-hole for removing hook (6-6).
Pressure ring (6-3) upper end is equipped with internal thread and shoulder for the fixed and positioned top cap (6-2), outside middle part
Diameter is equipped with the flowing hole radially penetrated through, and lower inner diameter is equipped with the inner diameter shoulder for positioning the positioning core axle (6-4).
Positioning core axle (6-4) upper surface is equipped with the axially extending bore for fixing the test cable (3), and upper end outer diameter is set
It is useful for positioning the outer diameter shoulder of the pressure ring (6-3), middle part and lower hollow, middle part outer diameter is equipped with radial pin hole.
Described hook top (6-6) is equipped with to radial pin hole, and lower end is equipped with can be to the extroversion hook of contract；
Coaxial package is in positioning core axle top outer diameter from bottom to top for the pressure ring (6-3), and the hook (6-6) is under
Upward coaxial package outer diameter in the middle part of the positioning core axle (6-4)；The hook (6-6) and the positioning core axle (6-4) pass through
The pin (6-5) is fixedly connected；The outer diameter shoulder of described hook upper end (6-6) and the positioning core axle (6-4) and the pressure
The inner diameter shoulder axial restraint of the upper end ring (6-3) connects.
Test cable (3) lower end from top to bottom sequentially passes through the hanging lock ring assemblies (4-2), passes through seal assembly B
(4-3) and Y types pass through connector (4-4), and lower end is fixedly connected with the positioning core axle (6-4)；Test cable (3) upper end
From the bottom to top seal assembly A is passed through across the boll-weevil hanger (1-1) side wall axially extending bore and 2 groups.
In the design of string pipe, the Y types traversing device (4) is located at pit shaft horizontal segment or more.
When the utility model is used, first, described in hypomere oil pipe column and the base fixture described in tripping in
Fixed pedestal and sit be stuck in well head, running string is in vertical well section at this time；Secondly, the test cable lower end is passed through described
Y types traversing device is simultaneously fixedly connected with the positioning core axle of connected components with described in the base fixture；Again, it relies on
Test cable and to the slow tripping in of the gravity of connected components test cable until the base fixture it is described to connected components with it is described
Fixed pedestal completion is fixedly connected；Then, the Y types traversing device is connected, and seal assembly B and institute are passed through described in completion wherein
State the installation of hanging lock ring assemblies；Finally, continue to connect the epimere tubing string and the oil pipe suspension device assembly, and complete institute
State the installation that seal assembly A is passed through described in oil pipe suspension device assembly.
During tubing string tripping in, Y type traversing devices test cable below is located at Y types traversing device in lower tubular column, effectively
It protects test cable injury-free during tripping in, improves operational security.
After the completion of tubing string tripping in, test cable more than Y type traversing devices is located at outside the above tubing string of Y type traversing devices, meets
In the tubing string of position it is empty requirement where existing well head and underground well control tool at work require.
When carrying out heavy crude heat extraction, the utility model can be by testing cable by downhole temperature and pressure parameter continuous transmission
To well head and ground demodulation equipment, long-acting test under high temperature well is realized, is commented for thick oil thermal extraction oil reservoir scheme, process program
Valence and optimization provide data support.
Claims (6)
1. long-acting test technology tubing string, the tubular column structure are sequentially connected by multiple tubular elements under a kind of offshore oilfield high temperature well
It forms, includes mainly oil pipe suspension device assembly, epimere oil pipe column, test cable, Y types traversing device, hypomere oil pipe column and bottom
Portion's fixing device, which is characterized in that the Y types traversing device by oil pipe variable buckle (4-1), hanging lock ring assemblies, pass through sealing group
Part B, Y type passes through connector, lower end connector, sealed chamber composition；The Y types pass through connector upper portion side wall equipped with described for passing through
The axially extending bore and sealed chamber of seal assembly B are passed through described in test cable (3) and installation, the through-hole and chamber pass through the Y types
It passes through connector side wall and passes to the Y types and pass through connector inner cavity.
2. long-acting test technology tubing string under a kind of offshore oilfield high temperature well according to claim 1, which is characterized in that described
Seal assembly is passed through to be made of seal pressure cap, 2 groups of grafting pressure ring assemblies and packing seal.
3. long-acting test technology tubing string under a kind of offshore oilfield high temperature well according to claim 2, which is characterized in that described
Y types pass through connector upper portion side wall and are equipped with for installing the chamber upper end for passing through seal assembly B to be connect with the seal pressure cap
Internal thread, below the seal pressure cap be equipped with 2 groups in chamber described in grafting pressure ring group, the grafting pressure described in 2 groups in chamber
The packing seal is equipped between ring group.
4. long-acting test technology tubing string under a kind of offshore oilfield high temperature well according to claim 1, which is characterized in that described
Y types pass through upper end of joint and are equipped with the internal thread being connect with the oil pipe variable buckle, and lower end with the lower end connector equipped in connecting
The size of screw thread, lower end internal thread is more than upper end internal thread and eccentric with upper end internal thread.
5. long-acting test technology tubing string under a kind of offshore oilfield high temperature well according to claim 1, which is characterized in that described
Base fixture is made of fixed pedestal and top cap, pressure ring, positioning core axle, pin and hook；
The fixed pedestal upper end is equipped with the internal thread being connect with the hypomere oil pipe column, and lower end is equipped with for facilitating under tubing string
The oblique angle entered, lower inner diameter is equipped with connects radial annular groove for the hook, and outer diameter is equipped with the radial through-hole for removing hook；
The hook top is equipped with radial pin hole, and lower end is equipped with can be to the extroversion hook of contract；
The pressure ring upper end is equipped with internal thread and shoulder for the fixed and positioned top cap, and middle part outer diameter is equipped with radial penetrate through
Flowing hole, lower inner diameter is equipped with inner diameter shoulder for positioning the positioning core axle；Pressure ring coaxial package from bottom to top
It is described to link up with coaxial package outer diameter in the middle part of the positioning core axle from bottom to top in positioning core axle top outer diameter；The extension
Hook is fixedly connected with the positioning core axle by the pin；Outer diameter shoulder and the institute of the hook and the positioning core axle upper end
State the inner diameter shoulder axial restraint connection of pressure ring upper end；
The positioning core axle upper surface is equipped with the axially extending bore for fixing the test cable, and upper end outer diameter is equipped with for positioning
The outer diameter shoulder of pressure ring, middle part and lower hollow are stated, middle part outer diameter is equipped with radial pin hole.
6. long-acting test technology tubing string under a kind of offshore oilfield high temperature well according to claim 1-5 any one, special
Sign is that the Y types traversing device is located at pit shaft horizontal segment or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721214910.5U CN207905792U (en) | 2018-06-29 | 2018-06-29 | Long-acting test technology tubing string under a kind of offshore oilfield high temperature well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721214910.5U CN207905792U (en) | 2018-06-29 | 2018-06-29 | Long-acting test technology tubing string under a kind of offshore oilfield high temperature well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207905792U true CN207905792U (en) | 2018-09-25 |
Family
ID=63570349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721214910.5U Active CN207905792U (en) | 2018-06-29 | 2018-06-29 | Long-acting test technology tubing string under a kind of offshore oilfield high temperature well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207905792U (en) |
-
2018
- 2018-06-29 CN CN201721214910.5U patent/CN207905792U/en active Active
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Address after: 100010 Beijing Chaoyang District Beijing Dongcheng District Chaoyangmen North Street 25 Co-patentee after: CNOOC Energy Development Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: Tianjin Branch of China Sea Prtroleum (China) Co., Ltd. Address before: 100010 Beijing Chaoyang District Beijing Dongcheng District Chaoyangmen North Street 25 Co-patentee before: CNOOC Energy Development Co., Ltd. Patentee before: China National Offshore Oil Corporation Co-patentee before: Tianjin Branch of China Sea Prtroleum (China) Co., Ltd. |