CN202810814U - Multifunctional auxiliary tubular column for thermal recovery of thickened oil - Google Patents
Multifunctional auxiliary tubular column for thermal recovery of thickened oil Download PDFInfo
- Publication number
- CN202810814U CN202810814U CN 201220394709 CN201220394709U CN202810814U CN 202810814 U CN202810814 U CN 202810814U CN 201220394709 CN201220394709 CN 201220394709 CN 201220394709 U CN201220394709 U CN 201220394709U CN 202810814 U CN202810814 U CN 202810814U
- Authority
- CN
- China
- Prior art keywords
- tubing string
- tubular column
- utility
- sand
- model
- 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.)
- Expired - Fee Related
Links
- 238000011084 recovery Methods 0.000 title abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 18
- 238000000605 extraction Methods 0.000 claims description 18
- 239000003129 oil well Substances 0.000 claims description 14
- 239000004576 sand Substances 0.000 abstract description 22
- 238000012544 monitoring process Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 8
- 230000009467 reduction Effects 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000012530 fluid Substances 0.000 description 9
- 239000003921 oil Substances 0.000 description 9
- 238000010796 Steam-assisted gravity drainage Methods 0.000 description 7
- 238000010795 Steam Flooding Methods 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000010794 Cyclic Steam Stimulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Landscapes
- Cleaning In General (AREA)
Abstract
The utility model provides a multi-functional supplementary tubular column of viscous crude thermal recovery, it includes: the sand washing pen point is connected with the bottom end of the outer pipe column; an inner tubular column capable of being contained in the outer tubular column, wherein an electric thermocouple is arranged in the inner tubular column, and the bottom end of the inner tubular column is connected with a weighting rod, wherein the outer tubular column is a continuous oil pipe, and the inner tubular column is a capillary pipe. The utility model discloses a multi-functional auxiliary pipe post of viscous crude thermal recovery, through going into in the pit once, can carry out warm-pressing monitoring, viscosity reduction, cooling and sand washing operation to effectively reduce the interior number of times of going into in the tubular column, simplify the operation process.
Description
Technical field
The utility model belongs to the thickened oil recovery field, ends the normal multi-functional auxiliary tubing string of heavy crude heat extraction of producing in particular to a kind of thick oil thermal extraction that can be used for.
Background technology
Heavy oil wells in thermal process, steam flooding and SAGD (Steam Assisted Gravity Drainage, SAGD especially, be called for short SAGD) the initial stage of production and cyclic steam stimulation latter stage, viscosity of crude is higher, is high-efficiency mining, needs supporting viscosity reduction technique; Steam soak turns the initial stage of taking out, steam flooding and SAGD and exploits latter stage, because the production fluid temperature is higher, causes oil well pump to be exposed to for a long time in the hot environment, can affect the life-span of oil well pump, therefore needs supporting certain temperature reduction technology; In the heavy oil wells manufacturing process, because viscosity of crude is high, often is accompanied by and shakes out, in addition sand pipe laying post, need to carry out the sand washing operation, recover heavy oil wells and end normal production; In process of production, need Real-Time Monitoring down-hole temperature and pressure situation, in time to carry out the technique adjustment.Therefore, for a lot of viscous crude producing wells, need to solve the problems such as viscosity reduction, cooling, sand washing, temperature and pressure monitoring, and present viscous crude producing well often only utilizes one-trip string, a cover technique to solve a problem, cause the frequent operation of some heavy oil wells, take the production time, increased the thermal loss of steam injection, had a strong impact on the economic benefit of heavy crude heat extraction.
Because the defective that above-mentioned known technology exists, the design people develops the multi-functional auxiliary tubing string of a kind of heavy crude heat extraction of the present utility model according to the Production design experience of being engaged in for many years this area and association area.
The utility model content
The purpose of this utility model provides the multi-functional auxiliary tubing string of a kind of heavy crude heat extraction, by under lower going-into-well, can carry out temperature and pressure monitoring, viscosity reduction, cooling and sand washing operation, thereby effectively reduce tubing string G.I.H number of times, simplifies flow chart.
For this reason, the utility model proposes the multi-functional auxiliary tubing string of a kind of heavy crude heat extraction, tool includes: one can be vertically placed on the outer tubing string in the oil well, and the bottom of described outer tubing string is connected with a sand-washing pen point; One can be placed in the interior tubing string in the described outer tubing string, is built-in with an electroheat pair in the described interior tubing string, and its bottom then is connected with a weighted lever, and wherein, described outer tubing string is a coiled tubing, and described interior tubing string then is a capillary tube.
The multi-functional auxiliary tubing string of a kind of heavy crude heat extraction that the utility model proposes; after under lower going-into-well; can carry out temperature and pressure monitoring, viscosity reduction, cooling and sand washing operation; thereby effectively reduce tubing string G.I.H number of times; simplify flow chart; reduce operating cost, be conducive to protect lifting tubing string and oil well pump, improve the economic benefit of steam utilization and heavy crude heat extraction.
Description of drawings
Fig. 1 is the structural representation that the multi-functional auxiliary tubing string of heavy crude heat extraction of the present utility model is positioned over the down-hole.
Fig. 2 is the use reference diagram of the multi-functional auxiliary tubing string of heavy crude heat extraction of the present utility model.
The critical element label declaration:
The outer tubing string of 1-, tubing string in the 11-sand-washing pen point, 2-, 21-weighted lever, 3-lifting tubing string, 31-oil well pump, 4-oil well, 41-test port, 5 oil pipe threeways, 51 fluid injection pipelines, 6 ground monitoring instrument.
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model:
Fig. 1 is the structural representation that the multi-functional auxiliary tubing string of heavy crude heat extraction of the present utility model is positioned over the down-hole.Fig. 2 is the use reference diagram of the multi-functional auxiliary tubing string of heavy crude heat extraction of the present utility model.
Referring to Fig. 1, the multi-functional auxiliary tubing string of a kind of heavy crude heat extraction that the utility model proposes, it includes an outer tubing string 1 and an interior tubing string 2.Wherein, described outer tubing string 1 can be vertically placed in the oil well, its bottom is connected with a sand-washing pen point 11, described interior tubing string 2 can be placed in the described outer tubing string 1, be built-in with a thermocouple (not shown) in the described interior tubing string 2, its bottom then is connected with a weighted lever 21, in actual application, utilize the Action of Gravity Field of weighted lever, interior tubing string is lowered in the outer tubing string smoothly; Wherein, described outer tubing string 1 is preferably a coiled tubing, and described interior tubing string 2 then is a capillary tube.
As shown in Figure 2, the utility model is in implementation uses, interior tubing string 2 is placed in the outer tubing string 1, and make outer tubing string 1 be lowered in the pit shaft of oil well 4 with lifting tubing string 3, and sand-washing pen point 11 correspondences are arranged at the 20～30m place under oil well pump 31 entrances of lifting tubing string 3 bottoms, in addition, the upper end of outer tubing string 1 is passed the test port 41 at oil well 4 well head places, and be connected with an oil pipe threeway 5, to be connected in a pump truck (or surface pipeline network) by this oil pipe threeway 5, to pass through fluid injection in the outside tubing string of pump truck, the first port of i.e. this oil pipe threeway 5 is connected with the upper end of being somebody's turn to do outer tubing string, its second port is connected in the pump truck (not shown) by fluid injection pipeline 51, be pointed out that, because should outer tubing string be coiled tubing, its length that passes the oil well mouth can be reached for more than the 50m, concrete length can be decided according to the individual well actual conditions; Described interior tubing string 2 the first port and the 3rd ports via this oil pipe threeway 5, be connected with a ground monitoring instrument 6, directly to read down-hole temperature and pressure data by this ground monitoring instrument 6, wherein, the 3rd port of this oil pipe threeway is equipped with Semi-seal device, when the outside tubing string fluid injection of pump truck, can prevent that liquid from being flowed out by the 3rd port, wherein:
(1) turn the initial stage of taking out, steam flooding and SAGD at steam soak and exploit latter stage, by interior tubing string and ground monitoring instrument, but Real-Time Monitoring down-hole temperature and pressure.When the production fluid temperature is higher, directly outwards squeeze into cold water in the tubing string on ground by pump truck, make cold water enter the down-hole via sand-washing pen point, and act on the liquid in the pit shaft, reach the effect of cooling;
(2) initial stage of production of steam flooding and SAGD and cyclic steam stimulation latter stage, when viscosity of produced liquid is higher, directly outwards squeeze into hot water or thinner in the tubing string by pump truck, enter the down-hole via sand-washing pen point, and act on the interior liquid of pit shaft, reach the effect of viscosity reduction;
(3) in process of production, when running into sand and bury oil layer section or sand pipe laying post, at first the utility model is carried a segment distance on the whole and bury sand section with disengaging, slowly transfer again outer tubing string 1, because outer tubing string has rigidity, then halts after it is hampered, and gets sand face position with spy; After verifying sand face position, stop to transfer outer tubing string, and record sand face position, afterwards, continue to transfer outer tubing string 2～3m, and outwards squeeze into sand cleaning fluid (such as hot water) in the tubing string, the sand cleaning fluid temperature is generally about 50～80 ℃, pressure is then decided according to the actual sand situation of burying in scene, makes the sand grains in the pit shaft be rushed to open and follow the anti-well head of discharging of sand cleaning fluid under certain pressure; Repeat this operation process, until sand washing is to designated depth; After sand washing finished, the sand-washing pen point of transferring outer tubing string lower end (under the oil well pump intake 20～30m), was namely finished the sand washing operation to initial position.
The multi-functional auxiliary tubing string of a kind of heavy crude heat extraction that the utility model proposes; after under lower going-into-well; can carry out temperature and pressure monitoring, viscosity reduction, cooling and sand washing operation; thereby effectively reduce tubing string G.I.H number of times; simplify flow chart; reduce operating cost, be conducive to protect lifting tubing string and oil well pump, improve the economic benefit of steam utilization and heavy crude heat extraction.
The above instrument is the schematic specific embodiment of the utility model, is not to limit scope of the present utility model.Any those skilled in the art, the equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (1)
1. the multi-functional auxiliary tubing string of heavy crude heat extraction is characterized in that, the multi-functional auxiliary tubing string of described heavy crude heat extraction includes:
One can be vertically placed on the outer tubing string in the oil well, and the bottom of described outer tubing string is connected with a sand-washing pen point;
One can be placed in the interior tubing string in the described outer tubing string, is built-in with an electroheat pair in the described interior tubing string, and its bottom then is connected with a weighted lever, and wherein, described outer tubing string is a coiled tubing, and described interior tubing string then is a capillary tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220394709 CN202810814U (en) | 2012-08-09 | 2012-08-09 | Multifunctional auxiliary tubular column for thermal recovery of thickened oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220394709 CN202810814U (en) | 2012-08-09 | 2012-08-09 | Multifunctional auxiliary tubular column for thermal recovery of thickened oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202810814U true CN202810814U (en) | 2013-03-20 |
Family
ID=47869712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220394709 Expired - Fee Related CN202810814U (en) | 2012-08-09 | 2012-08-09 | Multifunctional auxiliary tubular column for thermal recovery of thickened oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202810814U (en) |
-
2012
- 2012-08-09 CN CN 201220394709 patent/CN202810814U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103615225B (en) | Double-horizontal-well isothermal difference forced steam circulation preheating method for middle-deep layer oil reservoir | |
| CN107143313B (en) | A kind of water filling exploitation of geothermal energy and hydrate are hidden simultaneously well construction design and method | |
| CN106968601B (en) | Exploit the casing programme and method of dry-hot-rock geothermal resource | |
| CN201972682U (en) | Gas-injection oil-exploitation tubular column adopting packer technology for horizontal well | |
| CN103321622A (en) | Sand draining and oil extracting method in manner of integrating injection and extraction for thermal producing well and device thereof | |
| CN204252967U (en) | Hot dry rock multi cycle heating system | |
| CN101463718B (en) | Same-well production technique column for low-permeation horizontal well | |
| CN110131781A (en) | A kind of mid-deep strata underground heat adopts fill system with well | |
| CN103899295A (en) | Method and device for detecting heat loss of vertical well shaft in thickened oil steam production and injection | |
| CN204002696U (en) | A kind of full intelligent well completion device | |
| CN102678096A (en) | Method for exploiting high-pour-point oil reservoir through hot water assisted gravity drainage | |
| CN103939071A (en) | Horizontal well steam flooding well pattern structure and steam flooding method | |
| CN103362476A (en) | Casing type downhole heat exchanger heating system capable of preventing wall of producing well from paraffin precipitation | |
| CN204457756U (en) | Horizontal well segment pressure and pressure drop test pipe column | |
| CN105625993A (en) | Hot dry rock multi-circulation heating system and production method thereof | |
| CN202152643U (en) | Separate-layer production-seeking pressure measuring pipe column for multi-layer system oil production well | |
| CN202531139U (en) | Oil field annular heat insulation type hot water oil displacement injection well pipe column | |
| CN102644442A (en) | Ultra-viscous crude oil injection-production integrated technique tubular pile | |
| CA2931882A1 (en) | Method for forced steam cycle preheating dual horizontal well in middle-deep layer reservoir under a constant temperature difference | |
| CN203008883U (en) | Steam injection oil production technique pipe column | |
| CN202810814U (en) | Multifunctional auxiliary tubular column for thermal recovery of thickened oil | |
| CN104389569A (en) | Steam huff and puff mining method | |
| CN202165064U (en) | Layered oil production process tubular column for protecting oil layer | |
| CN110965995A (en) | Oil-water distribution testing device and method for low-liquid-volume horizontal well | |
| CN201517374U (en) | Gas recovery well completion pipe string |
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 |
Granted publication date: 20130320 Termination date: 20210809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |