CN113464090A - Combined production tree for production well - Google Patents
Combined production tree for production well Download PDFInfo
- Publication number
- CN113464090A CN113464090A CN202110914502.5A CN202110914502A CN113464090A CN 113464090 A CN113464090 A CN 113464090A CN 202110914502 A CN202110914502 A CN 202110914502A CN 113464090 A CN113464090 A CN 113464090A
- Authority
- CN
- China
- Prior art keywords
- oil
- christmas tree
- oil pipe
- rod
- wall
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 241000191291 Abies alba Species 0.000 claims abstract description 44
- 238000007789 sealing Methods 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 12
- 238000009827 uniform distribution Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 80
- 230000000712 assembly Effects 0.000 description 9
- 238000000429 assembly Methods 0.000 description 9
- 238000000605 extraction Methods 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a combined Christmas tree for an oil production well, which relates to the technical field of oil production wells and comprises an oil rod, a hanger and a plurality of Christmas tree components, wherein each Christmas tree component comprises an oil pipe, a combined connecting flange and a plurality of adjusting components; and a locking abutting part is arranged on the outer side wall of the oil pipe, and one end of the locking abutting part penetrates through the outer wall of the oil pipe and extends to the side part of the abutting part. The Christmas tree utilizes the locking abutting piece to push the abutting piece to abut against the oil rod so as to adjust the angle of the oil rod to be close to the axis of the corresponding oil pipe, and the axial overlapping error of the Christmas tree is reduced; the device adapts to the fluctuation of the angle of the sucker rod, thereby reducing the hard eccentric wear of parts in contact with the sucker rod; the operation is convenient and fast, and the practicability is strong.
Description
Technical Field
The invention relates to the technical field of oil production wells, in particular to a combined Christmas tree for an oil production well.
Background
The Christmas tree is a wellhead device for producing petroleum, such as a self-blowing well and a mechanical production well, is a main device for controlling and regulating the production of oil and gas at the uppermost part of the oil and gas well and mainly comprises a casing head, a tubing head and a Christmas tree body, wherein the Christmas tree is a component at an opening leading to the top end of the oil well and comprises a valve for measurement and maintenance, a safety system and a series of monitoring instruments, the Christmas tree is connected with a production pipeline and an oil outlet pipe from the underground and is also used as an important barrier for isolating the top end of the oil well from the external environment, and the Christmas tree comprises a plurality of valves which can be used for regulating or preventing produced crude oil steam, natural gas and liquid from flowing out of the well.
Some current production trees form through the combination of oil production spare, and wherein the oil rod can alternate the oil production spare of a plurality of combinations, but because the cover when the oil rod is outside in a plurality of oil pipe combination, because the error of a plurality of oil pipe internal diameter errors and installation, there is coincidence error in the axis of oil rod and the axis of a plurality of oil pipe, leads to the oil rod to produce hard eccentric wear with the spare part of contact like this easily, causes the damage.
Disclosure of Invention
The invention aims to provide a combined Christmas tree for an oil production well, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a combined Christmas tree for an oil extraction well comprises an oil rod, a hanger and a plurality of Christmas tree components, wherein the end parts of the plurality of Christmas tree components are connected to form a combined Christmas tree main body, the hanger is arranged at the top of the Christmas tree main body and used for hanging and installing the oil rod, the Christmas tree components comprise an oil pipe, a combined connecting flange and a plurality of adjusting components, the combined connecting flange is arranged at the two ends of the oil pipe and used for being fastened and connected with the adjacent Christmas tree components, the adjusting components are arranged at one port of the oil pipe in an annularly and uniformly distributed manner, each adjusting component comprises a side pressing part and a collision part, the side part of the side pressing part is hung and installed on the inner wall of the oil pipe through a ladder, the collision part is arranged on the side surface of the side pressing part facing the oil rod and hinged through a rotating seat, and the collision part is abutted against the opposite surface of the side pressing part through an inclined surface; and a locking abutting part is arranged on the outer side wall of the oil pipe, and one end of the locking abutting part penetrates through the outer wall of the oil pipe and extends to the side part of the abutting part.
On the basis of the technical scheme, the invention also provides the following optional technical scheme:
in one alternative: the outer wall of the collision piece facing the oil rod is provided with protrusions which are in a sawtooth shape.
In one alternative: one end part of the oil pipe, which is far away from the adjusting component, is provided with a pressure release valve, the pressure release valve is positioned on the outer wall of the oil pipe, one end part of the pressure release valve extends to the inside of the oil pipe, and the pressure release valve is used for releasing pressure inside the oil pipe.
In one alternative: the Christmas tree component further comprises a plurality of oil extraction side pipes and a plurality of oil extraction side pipes which are annularly distributed on the outer wall of the oil pipe, and each oil extraction side pipe is provided with a valve body and the valve body is used for controlling the on-off of the oil extraction side pipe.
In one alternative: when being equipped with annular groove and two production tree subassemblies lock mutually on the terminal surface of built-up connection flange, two annular grooves are corresponding and form a sealed annular, are equipped with the seal ring pad in the sealed annular.
In one alternative: the sealing ring gasket is made of rubber materials, and the section of the annular groove is semicircular.
In one alternative: the locking abutting part comprises an abutting rod and a sealing sleeve, the abutting rod radially penetrates through the side wall of the oil pipe, the end part of the abutting rod extends into the oil pipe, and the sealing sleeve is sleeved on the abutting rod and used for being in sealing fit with the side wall of the oil pipe.
Compared with the prior art, the invention has the following beneficial effects:
in the device, a plurality of Christmas tree components are stacked together to form a combined Christmas tree, so that oil can be divided and guided in multiple directions conveniently, the locking abutting piece is used for pushing the abutting piece to abut against the oil rod to adjust the angle of the oil rod to be close to the axis of the corresponding oil pipe, and the axial overlapping error of the oil rod is reduced; the device adapts to the fluctuation of the angle of the sucker rod, thereby reducing the hard eccentric wear of parts in contact with the sucker rod; the operation is convenient and fast, and the practicability is strong.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a christmas tree in an embodiment of the invention.
FIG. 2 is a schematic diagram of a tree assembly configuration in one embodiment of the invention.
Fig. 3 is a schematic structural diagram of an adjusting assembly in one embodiment of the invention.
Fig. 4 is a schematic structural view of a locking support member in an embodiment of the invention.
Notations for reference numerals: the oil rod 1, the Christmas tree component 2, the hanger 3, the oil pipe 21, the combined connecting flanges 22 and 23, the oil production side pipe 24, the valve body 25, the pressure relief valve 26, the adjusting component 27, the side pressure piece 271, the interference piece 272, the protrusion 273, the rotating seat 274, the locking abutting piece 28, the abutting rod 281, the sealing sleeve 282 and the annular groove 29.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments; in the drawings or the description, the same reference numerals are used for similar or identical parts, and the shape, thickness or height of each part may be enlarged or reduced in practical use. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.
In one embodiment, as shown in fig. 1-3, a combined christmas tree for production well comprises a sucker rod 1, a hanger 3 and a plurality of christmas tree assemblies 2, the ends of the plurality of christmas tree assemblies 2 are connected to form a combined christmas tree body, the hanger 3 is arranged on the top of the christmas tree body and is used for hanging and installing the sucker rod 1, the christmas tree assemblies 2 comprise an oil pipe 21, a combined connecting flange 22 and a plurality of adjusting assemblies 27, the combined connecting flange 22 is arranged at two ends of the oil pipe 21 and is used for being tightly connected with the adjacent christmas tree assemblies 2, the plurality of adjusting assemblies 27 are arranged at one port of the oil pipe 21 in an annular and uniform manner, the adjusting assemblies 27 comprise side pressing parts 271 and abutting parts 272, the side pressing parts 271 are arranged on the inner wall of the oil pipe 21 in a ladder suspension manner, the abutting parts 272 are arranged on the side of the side pressing parts 271 facing the sucker rod 1 and are hinged through a rotating seat 274, the opposite surfaces of the contact 272 and the side pressing piece 271 are inclined surfaces; the outer side wall of the oil pipe 21 is provided with a locking abutting part 28, and one end of the locking abutting part 28 penetrates through the outer wall of the oil pipe 21 and extends to the side part of the abutting part 272;
in the implementation process of the embodiment, when the plurality of oil pipes 21 are combined and sleeved outside the oil rod 1, due to the inner diameter error and the installation error of the plurality of oil pipes 21, the axis of the oil rod 1 and the axes of the plurality of oil pipes 21 have an overlapping error, at this time, in the adjusting assembly 27, the abutting piece 272 is pushed by the locking abutting piece 28 to abut against the oil rod 1 so as to adjust the angle of the oil rod 1 to be close to the axis of the corresponding oil pipe 21, and the axial overlapping error is reduced; the operation is convenient and fast, the practicability is high, as an embodiment, the left, right, upper and lower positions of all parts shown in the attached drawings are only one arrangement mode, and the specific positions are set according to specific requirements;
in one embodiment, as shown in fig. 3, the contact part 272 has a protrusion 273 on the outer wall facing the oil rod 1, and the protrusion 273 is serrated; the arrangement of the bulge 273 can increase the friction force with the outer wall of the oil rod 1 and the sealing performance;
in one embodiment, as shown in fig. 2, an end of oil pipe 21 away from adjusting assembly 27 is provided with a relief valve 26, where relief valve 26 is located on an outer wall of oil pipe 21 and an end extends into oil pipe 21, and relief valve 26 is used for relieving pressure inside oil pipe 21 to avoid excessive pressure inside oil pipe 21, and performing high pressure impact on adjusting assembly 27, oil pipe 21, and the like.
In one embodiment, as shown in FIG. 2, the Christmas tree assembly 2 further comprises a plurality of production side tubes 24 and the plurality of production side tubes 24 are annularly distributed on the outer wall of the tubing 21; the arrangement of the oil extraction side pipes 24 can realize multi-direction diversion and guide of oil and gas; each oil extraction side pipe 24 is provided with a valve body 25, and the valve body 25 is used for controlling the on-off of the oil extraction side pipe 24;
in one embodiment, as shown in fig. 2, the end face of the composite connecting flange 22 is provided with an annular groove 29, and when the two christmas tree assemblies 2 are fastened, the two annular grooves 29 correspond to each other and form a sealing ring groove, and a sealing ring gasket is arranged in the sealing ring groove; the arrangement of the sealing ring gasket and the sealing ring groove increases the sealing performance between the Christmas tree assemblies 2;
in one embodiment, as shown in fig. 2, the sealing ring gasket is made of rubber material and the section of the annular groove 29 is semicircular, so that the sealing ring gasket is in arc contact with the inner wall of the annular groove 29 due to the semicircular structure of the annular groove 29, and the sealing performance is further improved;
in one embodiment, as shown in fig. 4, the locking retainer 28 includes a retaining rod 281 and a sealing sleeve 282, the retaining rod 281 radially penetrates the sidewall of the oil pipe 21 and extends to the inside of the oil pipe 21, and the sealing sleeve 282 is fitted on the retaining rod 281 and is used for sealing engagement with the sidewall of the oil pipe 21; the length of the support rod 281 extending into the oil pipe 21 is adjusted to tightly support the support member 272, so as to finely adjust the angle of the oil rod 1 in the Christmas tree assembly 2; which is easy to operate and seals the junction of the support rod 281 with the tubing 21 by means of a gland 282;
the above embodiment discloses a combined christmas tree for production wells, wherein in the adjusting assembly 27, the locking abutting piece 28 pushes the abutting piece 272 to abut against the oil rod 1 so as to adjust the angle of the oil rod 1 to approach the axis of the corresponding oil pipe 21, thereby reducing the axial coincidence error; the operation is convenient and fast, and the practicability is strong.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (7)
1. A combined Christmas tree for an oil production well comprises an oil rod, a hanger and a plurality of Christmas tree components, wherein the end parts of the plurality of Christmas tree components are connected to form a combined Christmas tree main body;
the combined connecting flanges are arranged at the two ends of the oil pipe and are used for being fastened and connected with the adjacent Christmas tree components, and the plurality of adjusting components are arranged at one port of the oil pipe in an annular and uniform distribution mode;
the adjusting assembly comprises a side pressing piece and a butting piece, and the side part of the side pressing piece is suspended on the inner wall of the oil pipe through a step;
the contact piece is arranged on the side surface of the side pressing piece facing the oil rod and is hinged through the rotating seat, and the opposite surface of the contact piece and the side pressing piece is in inclined surface contact;
and a locking abutting part is arranged on the outer side wall of the oil pipe, and one end of the locking abutting part penetrates through the outer wall of the oil pipe and extends to the side part of the abutting part.
2. The christmas tree combination according to claim 1, wherein the contacting element is provided with a protrusion on an outer wall facing the oil rod, and the protrusion is serrated.
3. The tree of claim 1, wherein a pressure relief valve is provided at an end of the tubing remote from the adjustment assembly, the pressure relief valve being located on an outer wall of the tubing and extending into the tubing at an end, the pressure relief valve being configured to relieve pressure in the tubing.
4. The combination christmas tree assembly of claim 1, wherein the christmas tree assembly further comprises a plurality of production side pipes annularly arranged on the outer wall of the oil pipe, and each production side pipe is provided with a valve body for controlling the connection and disconnection of the production side pipe.
5. The tree of claim 1, wherein the end face of the connecting flange has an annular groove, and when the tree components are engaged, the two annular grooves correspond to each other to form a sealing ring groove, and a sealing ring gasket is disposed in the sealing ring groove.
6. The tree of claim 5, wherein the sealing ring is made of rubber and the cross section of the annular groove is semicircular.
7. The tree of any one of claims 1 to 6, wherein the locking abutment comprises an abutment rod extending radially through the side wall of the tubing and having an end extending into the interior of the tubing, and a sealing sleeve fitted over the abutment rod and adapted to sealingly engage the side wall of the tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110914502.5A CN113464090A (en) | 2021-08-10 | 2021-08-10 | Combined production tree for production well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110914502.5A CN113464090A (en) | 2021-08-10 | 2021-08-10 | Combined production tree for production well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113464090A true CN113464090A (en) | 2021-10-01 |
Family
ID=77868069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110914502.5A Pending CN113464090A (en) | 2021-08-10 | 2021-08-10 | Combined production tree for production well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113464090A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2448918Y (en) * | 2000-09-08 | 2001-09-19 | 胜利油田银星技术开发公司 | Chrisistmas tree for rotary oil sucking hole |
| CN2867042Y (en) * | 2006-01-17 | 2007-02-07 | 刘庆梅 | Thermal recovery conversion flange |
| CN2881079Y (en) * | 2005-11-18 | 2007-03-21 | 刘庆梅 | Blowout prevention oil extraction tree |
| CN104389544A (en) * | 2014-11-18 | 2015-03-04 | 江苏双辉机械制造有限公司 | Reducing dual tubing oil recovery wellhead casing head |
| CN204457568U (en) * | 2015-02-12 | 2015-07-08 | 江苏腾龙石化机械有限公司 | A kind of gas wellhead equipment adopting metal sealing |
| CN108661588A (en) * | 2018-06-23 | 2018-10-16 | 中国石油集团渤海石油装备制造有限公司 | A kind of Multi-pipe crossing high temperature test wellhead assembly |
| CN210768705U (en) * | 2019-10-08 | 2020-06-16 | 美钻石油钻采系统（南京）有限公司 | Blowout prevention wellhead Christmas tree device |
| CN211058756U (en) * | 2019-11-22 | 2020-07-21 | 中国石油天然气集团有限公司 | Fire flooding oil production wellhead device |
-
2021
- 2021-08-10 CN CN202110914502.5A patent/CN113464090A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2448918Y (en) * | 2000-09-08 | 2001-09-19 | 胜利油田银星技术开发公司 | Chrisistmas tree for rotary oil sucking hole |
| CN2881079Y (en) * | 2005-11-18 | 2007-03-21 | 刘庆梅 | Blowout prevention oil extraction tree |
| CN2867042Y (en) * | 2006-01-17 | 2007-02-07 | 刘庆梅 | Thermal recovery conversion flange |
| CN104389544A (en) * | 2014-11-18 | 2015-03-04 | 江苏双辉机械制造有限公司 | Reducing dual tubing oil recovery wellhead casing head |
| CN204457568U (en) * | 2015-02-12 | 2015-07-08 | 江苏腾龙石化机械有限公司 | A kind of gas wellhead equipment adopting metal sealing |
| CN108661588A (en) * | 2018-06-23 | 2018-10-16 | 中国石油集团渤海石油装备制造有限公司 | A kind of Multi-pipe crossing high temperature test wellhead assembly |
| CN210768705U (en) * | 2019-10-08 | 2020-06-16 | 美钻石油钻采系统（南京）有限公司 | Blowout prevention wellhead Christmas tree device |
| CN211058756U (en) * | 2019-11-22 | 2020-07-21 | 中国石油天然气集团有限公司 | Fire flooding oil production wellhead device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5555935A (en) | Fluid connector for well | |
| US7159652B2 (en) | Drilling flange and independent screwed wellhead with metal-to-metal seal and method of use | |
| US11105175B2 (en) | Adjustable frac flow line | |
| US3965977A (en) | Control line exiting coupling | |
| US11808104B2 (en) | Seal for a well | |
| WO2015028826A2 (en) | Running Tool | |
| CA1196857A (en) | Packoff and seal ring assembly | |
| SG191530A1 (en) | Metal-to-metal sealing arrangement for control line and method of using same | |
| US20130140775A1 (en) | Seal With Bellows Type Nose Ring | |
| CN108468527B (en) | Composite cable oil production wellhead device | |
| CN113464090A (en) | Combined production tree for production well | |
| CN108019179B (en) | Metal seal assembly and oil pipe hanger | |
| US20130043657A1 (en) | S-seal | |
| CN103899871A (en) | Anti-explosion and high-pressure-resisting rotation compensator | |
| US3526418A (en) | Wellhead completion apparatus | |
| US2709091A (en) | Locking screw for well head | |
| US9109421B2 (en) | Deformation resistant opening chamber head and method | |
| US10167693B2 (en) | Hanger sealing system | |
| US11105178B2 (en) | Subsea slip-on pipeline repair connector with graphite packing | |
| CN113863886B (en) | Casing head and wellhead device | |
| CN113622857B (en) | High-pressure anti-corrosion integral wellhead device | |
| CN202834549U (en) | Rigid pipe joint with extensible offset function | |
| CN203809937U (en) | Anti-explosion high pressure resistant rotary compensator | |
| RU199641U1 (en) | Wellhead cable entry device | |
| US10683727B1 (en) | Valve for mineral extraction systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211001 |
|
| RJ01 | Rejection of invention patent application after publication |