CN2752767Y - Concentric oil pipe wellbore nitrogen-filling thermal insulation limit testing device - Google Patents
Concentric oil pipe wellbore nitrogen-filling thermal insulation limit testing device Download PDFInfo
- Publication number
- CN2752767Y CN2752767Y CN 200420115254 CN200420115254U CN2752767Y CN 2752767 Y CN2752767 Y CN 2752767Y CN 200420115254 CN200420115254 CN 200420115254 CN 200420115254 U CN200420115254 U CN 200420115254U CN 2752767 Y CN2752767 Y CN 2752767Y
- Authority
- CN
- China
- Prior art keywords
- heat
- oil pipe
- insulating
- nitrogen
- 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 - Lifetime
Links
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model relates to a testing device for the nitrogen-filling heat-insulating limit of a well shaft with a concentric oil pipe, which comprises a well shaft body, a heat-insulating sealing system, a heat-preserving constant temperature system, a heating temperature control system and a data acquiring and processing system due to the adoption of a well shaft model. The well shaft model which is almost similar to an actual steam-injecting well can realize the physical simulation of the heat-transferring process of the well shaft under different steam-injecting operating conditions, can comprehensively evaluate the heat-insulating effects of different heat-insulating techniques of the space of an oil sleeve ring, and can confirm the technical bounds, the feasibility, the influential factors and the range of application of related heat-insulating technology. Simultaneously, various indoor tests realized by utilizing the utility model has the advantages of low evaluation expenses and comprehensive evaluation factors and can economically and flexibly realize the physical simulation of different heat-insulating techniques. The utility model can avoid blind operation and the unnecessary waste of nitrogen and has positive effects on controlling the production cost of thick oil and improving the utilization rate of the nitrogen and the level of the heat-insulating techniques.
Description
Technical field:
The utility model relates to a kind of experimental provision that is used for determining the heat insulation technology boundary of concentric oil tubes pit shaft notes nitrogen, and particularly a kind of concentric oil tubes pit shaft is annotated the heat insulation boundary experimental provision of nitrogen.
Background technology:
Thickened oil recovery mainly is in the thermal recovery mode.Improve the heavy crude heat extraction economic benefit and just must control annotate the vapour cost.On-the-spot to annotate the loss of vapour mass dryness fraction serious, and the steam heat utilization factor is low, and along with on-the-spot steamed well heat is annotated round and the increase of time, and sleeve pipe will repeatedly stand high temperature, high pressure effect and well damage.Therefore, in steam injection process, how guaranteeing casing safety and reducing wellbore heat loss as far as possible is to annotate an important topic of vapour heavy crude producing.Outside annotating gasoline pipe, increase instlated tubular (being concentric oil tubes), tubing and casing annular space inflated with nitrogen is the effective measures that realize thermally insulating the borehole.But because field condition is complicated and it is very high to increase the input of instlated tubular, if site test, invest hugely, and be difficult to get clear technical limits, thereby cause unnecessary huge investment.
Technical scheme
The purpose of this utility model is to provide a kind of concentric oil tubes pit shaft to annotate the heat insulation boundary experimental provision of nitrogen, carry out indoor physical simulation research, realization is annotated the thoroughly evaluating that the vapour well adopts the heat insulation technology of concentric oil tubes annular space inflated with nitrogen to the scene, determine the operational boundaries of this technology, thereby for on-the-spot technology provides technical parameter, the scientific guidance field practice.Reduce unnecessary and huge investment.
The purpose of this utility model is to realize like this, it is by insulation material (1), casing flange (2), heat-insulating and sealing ring (3), outer oil pipe flange (4), inside and outside oil pipe rotary packing ring (5), oil pipe inner chamber (6), inner oil tube (7), heat-barrier material (8), outer oil pipe (9), casing annulus (10), thermopair (11), sleeve pipe (12), cement mantle (13), reservoir sand (14), model shell (15), thermostatic water-jacket (16), heat-insulation layer (17), support (18), end cap (19), fixator pins (20), control panel (21) is formed, be followed successively by oil pipe inner chamber (6) from the inside to the outside, inner oil tube (7), heat-barrier material (8), outer oil pipe (9), casing annulus (10), sleeve pipe (12), cement mantle (13), reservoir sand (14), model shell (15), thermostatic water-jacket (16), heat-insulation layer (17), in oil pipe inner chamber (6), casing annulus (10), cement mantle (13), thermopair (11) is arranged respectively in the reservoir sand (14), casing flange (2), outer oil pipe flange (4) is respectively by heat-insulating and sealing ring (3), inside and outside oil pipe rotary packing ring (5) is in inner chamber (6), casing annulus (10) two ends, end cap (19) covers at heat-insulation layer (17) two ends, control panel (21) is arranged on heat-insulation layer (17), and be connected with support (18) by fixator pins (20), insulation material (1) is arranged in the end cap (19).
This utility model meeting geometric is similar, thermodynamic similarity, mechanical similitude are the basis, is that prerequisite designs to reach technical indicators such as 350 ℃ of heatproofs, withstand voltage 20MPa.
The utility model is owing to adopt wellbore model by pit shaft body, adiabatic sealing system, heat-preserving constant-temperature system, heating temperature-control system, data Collection ﹠ Processing System five parts.Wellbore model and the actual vapour well geometric similarity of annotating.Can realize different physical simulations of annotating vapour operating mode well-sinking diabatic processes, effect of heat insulation that can the different heat insulation technologies of thoroughly evaluating oil jacket annular space is determined technical limits, feasibility, influence factor and the scope of application of relevant heat-insulating technique.Simultaneously, every shop experiment of utilizing this utility model to realize, appraisal cost is low, and factor of evaluation is comprehensive, can economy realizes the physical simulation of different heat insulation technologies flexibly.Avoid the unnecessary waste of blindly operation and nitrogen, control viscous crude production cost, raising nitrogen utilization factor and heat insulation technological level are had positive effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment
As shown in the figure, the utility model by it by insulation material 1, casing flange 2, heat-insulating and sealing ring 3, outer oil pipe flange 4, inside and outside oil pipe rotary packing ring 5, oil pipe inner chamber 6, inner oil tube 7, heat-barrier material 8, outer oil pipe 9, casing annulus 10, thermopair 11, sleeve pipe 12, cement mantle 13, reservoir sand 14, model shell 15, thermostatic water-jacket 16, heat-insulation layer 17, support 18, end cap 19, fixator pins 20, control panel 21 is formed, be followed successively by oil pipe inner chamber 6 from the inside to the outside, inner oil tube 7, heat-barrier material 8, outer oil pipe 9, casing annulus 10, sleeve pipe 12, cement mantle 13, reservoir sand 14, model shell 15, thermostatic water-jacket 16, heat-insulation layer 17, at oil pipe inner chamber 6, casing annulus 10, cement mantle 13, thermopair 11 is arranged respectively in the reservoir sand 14, casing flange 2, outer oil pipe flange 4 is respectively by heat-insulating and sealing ring 3, inside and outside oil pipe rotary packing ring 5 is at inner chamber 6, casing annulus 10 two ends, end cap 19 covers at heat-insulation layer 17 two ends, control panel 21 is arranged on heat-insulation layer 17, and be connected with support 18 by fixator pins 20, insulation material 1 is arranged in the end cap 19.
Claims (1)
1, a kind of concentric oil tubes pit shaft is annotated the heat insulation boundary experimental provision of nitrogen, it is by insulation material (1), casing flange (2), heat-insulating and sealing ring (3), outer oil pipe flange (4), inside and outside oil pipe rotary packing ring (5), oil pipe inner chamber (6), inner oil tube (7), heat-barrier material (8), outer oil pipe (9), casing annulus (10), thermopair (11), sleeve pipe (12), cement mantle (13), reservoir sand (14), model shell (15), thermostatic water-jacket (16), heat-insulation layer (17), support (18), end cap (19), fixator pins (20), control panel (21) is formed, it is characterized in that: be followed successively by oil pipe inner chamber (6) from the inside to the outside, inner oil tube (7), heat-barrier material (8), outer oil pipe (9), casing annulus (10), sleeve pipe (12), cement mantle (13), reservoir sand (14), model shell (15), thermostatic water-jacket (16), heat-insulation layer (17), in oil pipe inner chamber (6), casing annulus (10), cement mantle (13), thermopair (11) is arranged respectively in the reservoir sand (14), casing flange (2), outer oil pipe flange (4) is respectively by heat-insulating and sealing ring (3), inside and outside oil pipe rotary packing ring (5) is in inner chamber (6), casing annulus (10) two ends, end cap (19) covers at heat-insulation layer (17) two ends, control panel (21) is arranged on heat-insulation layer (17), and be connected with support (18) by fixator pins (20), insulation material (1) is arranged in the end cap (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115254 CN2752767Y (en) | 2004-11-26 | 2004-11-26 | Concentric oil pipe wellbore nitrogen-filling thermal insulation limit testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115254 CN2752767Y (en) | 2004-11-26 | 2004-11-26 | Concentric oil pipe wellbore nitrogen-filling thermal insulation limit testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2752767Y true CN2752767Y (en) | 2006-01-18 |
Family
ID=35914178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420115254 Expired - Lifetime CN2752767Y (en) | 2004-11-26 | 2004-11-26 | Concentric oil pipe wellbore nitrogen-filling thermal insulation limit testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2752767Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837565A (en) * | 2012-11-26 | 2014-06-04 | 中国石油天然气股份有限公司 | Thermal barrier effect experimental device of annular medium of hot water flooding oil extracting shaft |
| CN104132960A (en) * | 2014-07-04 | 2014-11-05 | 中国海洋石油总公司 | Test system for simulating thermal insulation performance of pipeline under deepwater environment |
| CN104807850A (en) * | 2015-03-27 | 2015-07-29 | 西南石油大学 | Experimental device and method for measuring thermodynamic parameters of oil gas well shaft fluid and oil well pipe |
-
2004
- 2004-11-26 CN CN 200420115254 patent/CN2752767Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837565A (en) * | 2012-11-26 | 2014-06-04 | 中国石油天然气股份有限公司 | Thermal barrier effect experimental device of annular medium of hot water flooding oil extracting shaft |
| CN103837565B (en) * | 2012-11-26 | 2016-04-06 | 中国石油天然气股份有限公司 | Hot waterflooding recovers the oil mineshaft annulus medium effect of heat insulation experimental provision |
| CN104132960A (en) * | 2014-07-04 | 2014-11-05 | 中国海洋石油总公司 | Test system for simulating thermal insulation performance of pipeline under deepwater environment |
| CN104132960B (en) * | 2014-07-04 | 2017-02-15 | 中海油能源发展股份有限公司 | Test system for simulating thermal insulation performance of pipeline under deepwater environment |
| CN104807850A (en) * | 2015-03-27 | 2015-07-29 | 西南石油大学 | Experimental device and method for measuring thermodynamic parameters of oil gas well shaft fluid and oil well pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112730503B (en) | Operation method of simulation device for exploiting oil shale by high-temperature fluid | |
| CN204188353U (en) | Packing element sealing property detection device | |
| CN103821487B (en) | Simulation experiment set for thickened oil thermal recovery storage layer fractures | |
| CN106442264A (en) | Device for testing permeability under high temperature and high pressure | |
| Zhang et al. | Prediction and analysis on annular pressure of deepwater well in the production stage | |
| CN104655495A (en) | High temperature and high pressure coal and rock true triaxial fracturing and seepage test device and test method | |
| CN106353479B (en) | Full-hole core clamper and full-hole core are acidified simulator | |
| CN105241596B (en) | The method of testing and device of a kind of thermal production well gas injection process middle sleeve thermal stress | |
| CN104807850B (en) | It is a kind of measure oil/gas well wellbore fluids, oil well pipe thermodynamic parameter experimental provision and method | |
| CN202531139U (en) | Annulus insulation type hot water drive injection well pipe column of oil field | |
| CN2752767Y (en) | Concentric oil pipe wellbore nitrogen-filling thermal insulation limit testing device | |
| CN114575811B (en) | Device and method for extracting oil gas from organic rock reservoirs with different burial depths through convection heating | |
| CN106593411B (en) | A kind of cement sheath sealing and the experimental provision and method of sleeve pipe lifting | |
| CN107860785A (en) | A kind of quick thermal fatigue test method of engine cylinder cap and device | |
| CN102879321B (en) | Method for simulating high-temperature and high-pressure down-hole packer rubber corrosion test | |
| CN112727418A (en) | Simulation device for extracting oil shale from high-temperature fluid under control of multivariate factors | |
| CN105259041A (en) | Method and device for testing heat intensity of simulated steam injection well casing pipe | |
| CN203587471U (en) | Bottom feed type high-temperature high-pressure rheometer system | |
| CN105041281A (en) | Experimental evaluation system for influence of superheated steam on reservoir | |
| CN103835709A (en) | Simulation experiment method for thickened oil thermal recovery reservoir layer fracture | |
| CN202956353U (en) | Hot waterflooding oil wellbore annulus media thermal barrier effect test device | |
| CN1237255C (en) | Polish oil-pipe well nitrogen heat-insualting wellhole heat-transfer simulating technique | |
| CN2833586Y (en) | Combustion chamber of physical simulating apparatus for in-situ combustion | |
| CN204203007U (en) | A kind of high temperature lower packet packing element contact stress proving installation | |
| CN1566615A (en) | Heat transmission simulation technology for nitrogen insulated wellbore of concentric oil pipe well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141126 Granted publication date: 20060118 |