CN2448917Y - Double-pipe gas-injection oil-production hole top apparatus for thick oil hole - Google Patents
Double-pipe gas-injection oil-production hole top apparatus for thick oil hole Download PDFInfo
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- CN2448917Y CN2448917Y CN 00210145 CN00210145U CN2448917Y CN 2448917 Y CN2448917 Y CN 2448917Y CN 00210145 CN00210145 CN 00210145 CN 00210145 U CN00210145 U CN 00210145U CN 2448917 Y CN2448917 Y CN 2448917Y
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Abstract
The utility model relates to a double-pipe vapor-injection oil-production well top apparatus for a thick oil well, which is used for the vapor injection and exploitation of the thick oil well. The utility model is composed of a flange 3 of an oil pipe hanger, large four-ways 8, a tee body 8 arranged among the large four-ways 8, an oil pipe short joint arranged in the tee body 8, a joint 7 of a vapor-injection pipe and each gate valve. The well top apparatus has the advantages that design is novel, structure is reasonable, operation is reliable, and the vapor injection and oil production can synchronously realized and carried out under the condition of the same well top apparatus when the utility model is used. The utility model not only causes the procedure of operation to be greatly simplified, shortens operational period, and reduces production cost, but also enhances the utilization rate of thermal energy and improves the effect of the exploitation of the oil well.
Description
The utility model relates to a kind of wellhead assembly that is used for the heavy oil wells exploitation via steam injection.
Heavy oil wells exploitation via steam injection process is divided into usually annotates vapour, vexed well, steam discharge, four steps of oil recovery.At present, the thickened oil recovery wellhead assembly of field by using can only be respectively applied for to be annotated vapour and two stages of oil recovery, thereby in whole notes vapour recovery process, need to change operation, and operation procedure is more loaded down with trivial details, duty cycle is longer, cost of production was improved, the heavy oil wells exploitation effect is affected.
The purpose of this utility model is to provide a kind of can simplify operation procedure greatly, realizes annotating vapour, recovers the oil and carry out synchronously, thereby improve the two-tube notes vapour of the heavy oil wells wellhead for production of thickened oil recovery effect.
The utility model is to realize like this.This kind wellhead assembly is to increase a two-tube three-way device that connects oil pipe respectively and annotate steam pipe between the big four of former thermal production well mouth and tubing hanger flange.This wellhead assembly is made up of gate valve, tubing hanger flange, oil pipe short circuit, three-way body, notes steam pipe connect and big four, wherein, gate valve invariant positions such as original production gate, sleeve gate, open flow gate, only master valve is offset to a side by the middle position.Be assembled with three-way body by bolt and nut between tubing hanger flange and the big four, the tubing hanger flange is interior by being connected to the oil pipe short circuit under the screw thread, in the oil pipe short circuit, the bottom places in three-way body one side through hole, with screw thread the notes steam pipe connect is housed in the three-way body opposite side through hole arranged side by side with it, three-way body one side has master valve by the bolt and nut tipping.During underground work, the steam injection string that connects under tubing string that connects under this wellhead assembly inner oil tube short circuit and the notes steam pipe short circuit is lowered to the oil well different depth respectively.Because in three-way body and pit shaft, annotating vapour, recovering the oil is two mutual separately incoherent independent pipeline passages, thereby can realize annotating vapour, recover the oil and carry out synchronously and do not interfere with each other.
The utility model modern design, rational in infrastructure, reliable operation, utilize it can realize annotating vapour under the situation of same wellhead assembly, recover the oil and carry out synchronously, flow chart is greatly simplified, shorten duty cycle, cost of production reduces, and the raising of heat energy utilization rate, the oil mining effect improves, and is suitable at the heavy oil exploitation via steam injection well and extensively adopts.
Accompanying drawing is a general structure schematic diagram of the present utility model.
Below in conjunction with accompanying drawing enforcement of the present utility model is described further.
As shown in the figure, the utility model is made up of open flow gate 1, production gate 2, tubing hanger flange 3, oil pipe short circuit 4, master valve 5, three-way body 6, notes steam pipe connect 7, big four 8 and sleeve gate 9.Wherein, three-way body 6 forms for monoblock cast, its top, the bottom is respectively equipped with is connected and uses flange with the big four of its below of the tubing hanger method langley of its top, middle part one side is provided with to be connected with master valve uses horizontal tube head, in the main body is eccentric structure, one side is provided with the longitudinal hole that is used for being provided with the oil pipe short circuit that matches with its top tubing hanger flange endoporus, opposite side is provided with side by side with it and is used for being provided with the longitudinal hole of annotating steam pipe connect, on this through hole, the middle part is threaded, the middle part is connected with the horizontal tube head of main body middle part one side.Tubing hanger flange 3 is an eccentric structure also, and the through hole on it matches with the through hole of three-way body one side mounting flow string.Annotate steam pipe connect 7 and be a top and be solid, in, the cylinder of bottom hollow, its upper and lower end periphery is respectively equipped with pin thread, the middle part is provided with the side opening that is connected with the horizontal tube head of three-way body.Other each parts such as big four and each gate etc. all can adopt existing finished parts.
Claims (2)
1, the two-tube notes vapour of a kind of heavy oil wells wellhead for production, by open flow gate (1), produce gate (2), tubing hanger flange (3), oil pipe short circuit (4), master valve (5), big four (8), sleeve gate (9) is formed, it is characterized in that, be assembled with three-way body (6) by bolt and nut between tubing hanger flange (3) and the big four (8), tubing hanger flange (3) is interior by being connected to oil pipe short circuit (4) under the screw thread, in the oil pipe short circuit (4), the bottom places in three-way body (6) one side through hole, three-way body (6) opposite side interior being equipped with screw thread of through hole arranged side by side with it annotated steam pipe connect (7), and the horizontal tube head of three-way body (6) one sides has master valve (5) by the bolt and nut tipping.
2, the two-tube notes vapour of heavy oil wells according to claim 1 wellhead for production, it is characterized in that, three-way body (6) forms for monoblock cast, its top, bottom are respectively equipped with flange, middle part one side is provided with horizontal tube head, is eccentric structure in the main body, is provided with two longitudinal holes arranged side by side, wherein on the side through hole, the middle part is threaded, the middle part is connected with the horizontal tube head of main body middle part one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210145 CN2448917Y (en) | 2000-08-29 | 2000-08-29 | Double-pipe gas-injection oil-production hole top apparatus for thick oil hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210145 CN2448917Y (en) | 2000-08-29 | 2000-08-29 | Double-pipe gas-injection oil-production hole top apparatus for thick oil hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2448917Y true CN2448917Y (en) | 2001-09-19 |
Family
ID=33577092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00210145 Expired - Fee Related CN2448917Y (en) | 2000-08-29 | 2000-08-29 | Double-pipe gas-injection oil-production hole top apparatus for thick oil hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2448917Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100340735C (en) * | 2005-12-19 | 2007-10-03 | 辽河石油勘探局 | Well head device for thick oil extraction by horizontal well SAGD process |
| CN102359355A (en) * | 2011-09-23 | 2012-02-22 | 中国石油天然气股份有限公司 | Concentric-tube double-tube steam injection wellhead device |
| CN103233712A (en) * | 2013-05-09 | 2013-08-07 | 谢伟 | Multifunctional thermal recovery device for heavy oil well |
| CN106014358A (en) * | 2016-02-03 | 2016-10-12 | 江苏恒达机械制造有限公司 | Injection and production integrated wellhead device |
| CN109424343A (en) * | 2017-08-31 | 2019-03-05 | 中国石油化工股份有限公司 | It is a kind of with note well head and well head with injecting method |
-
2000
- 2000-08-29 CN CN 00210145 patent/CN2448917Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100340735C (en) * | 2005-12-19 | 2007-10-03 | 辽河石油勘探局 | Well head device for thick oil extraction by horizontal well SAGD process |
| CN102359355A (en) * | 2011-09-23 | 2012-02-22 | 中国石油天然气股份有限公司 | Concentric-tube double-tube steam injection wellhead device |
| CN103233712A (en) * | 2013-05-09 | 2013-08-07 | 谢伟 | Multifunctional thermal recovery device for heavy oil well |
| CN106014358A (en) * | 2016-02-03 | 2016-10-12 | 江苏恒达机械制造有限公司 | Injection and production integrated wellhead device |
| CN109424343A (en) * | 2017-08-31 | 2019-03-05 | 中国石油化工股份有限公司 | It is a kind of with note well head and well head with injecting method |
| CN109424343B (en) * | 2017-08-31 | 2024-04-16 | 中国石油化工股份有限公司 | Wellhead and wellhead injection-accompanying method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010919 Termination date: 20090929 |