CN201162532Y - Multifunctional thick oil hot-extraction column jacket - Google Patents
Multifunctional thick oil hot-extraction column jacket Download PDFInfo
- Publication number
- CN201162532Y CN201162532Y CNU2007200135216U CN200720013521U CN201162532Y CN 201162532 Y CN201162532 Y CN 201162532Y CN U2007200135216 U CNU2007200135216 U CN U2007200135216U CN 200720013521 U CN200720013521 U CN 200720013521U CN 201162532 Y CN201162532 Y CN 201162532Y
- Authority
- CN
- China
- Prior art keywords
- valve
- packer
- valve body
- steam injection
- injection valve
- 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
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a multi-purpose heavy oil thermal recovery casing string which comprises an insulated pipe, an expansion pipe, packers, a steam injection valve, a connecting pipe, a liner, a pipe plug and a pump seat. The multi-purpose heavy oil thermal recovery casing string is also provided with an explosive dust valve; the insulated pipe, the pump seat, the expansion pipe, the packer, the steam injection valve, the explosive dust valve, the packer, the connecting pipe, the liner and the pipe plug are arranged orderly in series; the power cylinder of the packer is a gas pressure cylinder; the explosive dust valve consists of a valve body, a pressure relief hole arranged on the wall of the valve body, a pressure limiting engaging and disengaging device of the valve body. Applied to heavy oil thermal recovery, the multi-purpose heavy oil thermal recovery casing string has the significant advantages of simple process, high productivity and low cost.
Description
Technical field
The utility model relates to a kind of heavy crude heat extraction equipment that is applied to the field, oil field, exactly is a kind of multi-functional heavy crude heat extraction tubing string.
Technical background
In state, field, inside and outside oil field, the people oil well of Application and Development mainly contain two kinds, i.e. straight well and horizontal well.When people utilized straight well to carry out heavy crude heat extraction, its main content of operation had two, and the one, the viscous crude desaturation promptly reduces the viscosity of underground viscous crude, improves its flowability; The 2nd, recover the oil, be about to underground viscous crude and be taken to outside the well.In this course, people's main construction equipment that need use is the uphole equipment of heavy crude heat extraction tubing string and adapted thereof.Wherein, the heavy crude heat extraction tubing string comprises steam injection string and flow string.The former is used for viscous crude desaturation operation; The latter is used for oil-recovery operations.Existing steam injection string is usually by from top to bottom, and Chuan Lian instlated tubular, telescoping tube, packer, steam injection valve, packer, adapter, tail pipe and plug are formed successively; Packer is made up of central tube, expanding annular seat component and positioning element thereof, power cylinder respectively again.Wherein, power cylinder is made of hot hydrodynamic cylinder pressure, and said hot hydrodynamic cylinder pressure is meant that the driving energy source of its piston is in steam thermal energy.In the use, the external part and the containment member of described piston match, and containment member is expanded outside being expanded when piston stretches out, and then will seal in the annular gap between steam injection string cylindrical and the well casing endoporus, and this process also is called packer set.Existing flow string is in series by pump seat and oil pipe.When utilizing existing heavy crude heat extraction tubing string to implement the heavy crude heat extraction operation, comprise following process: 1, packer setting, with the selected gasoline layer of annotating; 2, in steam injection string, inject viscous crude desaturation auxiliary agent, i.e. carbon dioxide or nitrogen, or the like; 3, stewing well; 4, by steam injection string steam in jection in oilbearing stratum; 5, steam injection string is carried to well; 6, adorn flow string down; 7, oil pumping.The subject matter that existing heavy crude heat extraction tubing string in use exists is the operating procedure complexity, and production efficiency is low, the cost height.The main cause that has problems has 3 points: at first, because its packer relies on heat energy to set, so that before injecting viscous crude desaturation auxiliary agent, must implement to annotate the vapour operation in advance; Secondly, steam injection string and flow string are provided with respectively, so that after the viscous crude desaturation, before the oil-recovery operations, need earlier steam injection string to be carried to well, again with in the dress well under the flow string, and complex operation, cost is very high; Once more, when in well casing perforation and the venturi during by shutoff, it does not have the de-plugging ability, so that de-plugging work can only rely on special equipment and technology to implement separately.
Summary of the invention
The purpose of this utility model is for people provide a kind of multi-functional heavy crude heat extraction tubing string, so that when implementing heavy crude heat extraction operation with it, can simplify technology, enhances productivity, and reduces production costs.
The purpose of this utility model is to realize like this, it comprises instlated tubular, telescoping tube, packer, steam injection valve, adapter, tail pipe, plug and pump seat, be characterized in that it also is provided with explosive valve, and according to top-down order, instlated tubular, pump seat, telescoping tube, packer, steam injection valve, explosive valve, packer, adapter, tail pipe and plug are connected successively, the power cylinder of described packer is made of the vapour pressure cylinder, and described explosive valve is made up of valve body and the relief hole and the pressure limiting switching device thereof that are arranged on the valve body wall.
Above-mentioned packer is made up of central tube etc., on the central tube, software tensioner ring and coupling components thereof are set respectively on the cylindrical of bottom, be fixedly connected on the cylindrical of lower end and dilate cover, the opposing setting on the cylindrical of middle part, following two vapour pressure cylinders, and make it air storing cavity and be communicated with the central tube inner chamber, the coupling components of bottom vapour pressure cylinder piston external part and bottom software tensioner ring matches, its formation is moved down the promotion contact, top vapour pressure cylinder piston external part frustum face, dilate set upper side frustum face respectively with last, the lower end accent of bottom software tensioner ring matches, the software tensioner ring is expanded outside being expanded when piston stretches out, and these obstructing instrument two ends are provided with the abutment draw bail.
Above-mentioned steam injection valve is by shell, composition such as valve body, valve ball, shell, valve body are tubular articles, be shaped on rod radial air vent on the circumference of shell, plant valve body in the shell, the contact of slipper seal between the two also is provided with the deblocking pin, and valve ball and valve body upper end accent match, can form the means of press seals contact to it, these steam injection valve two ends are provided with the abutment draw bail.
Be shaped on radially ladder hole on the valve body wall of above-mentioned explosive valve, this through hole constitutes described relief hole, the pressure limiting switching device of this relief hole constitutes like this: on the ladder end face of relief hole the pressure limiting sheet is set, and in its big stomidium, connect positioning sleeve, this positioning sleeve makes and forms sealing and fixing between pressure limiting sheet and the described ladder end face and connect, and these steam injection valve two ends are provided with the abutment draw bail.
After the utility model was realized, when implementing the heavy crude heat extraction operation with it, it was simple to have technology, production efficiency height, the remarkable advantage that cost is low.The reason that obtains this effect has 3 points: at first, packer of the present utility model has air pressure seat sealing property, can when being carbon dioxide or nitrogen, realize by injection gaseous state viscous crude desaturation auxiliary agent the seat envelope, omitted in the prior art, be steam injection process that packer setting is implemented separately, thereby simplify the preface worker and reduce production costs; Secondly, the utility model unites two into one existing gas injection tubing string and flow string, simplified apparatus structure not only, simultaneously also in the heavy crude heat extraction process, with the following dress number of times of tubing string by twice of the prior art, be that gas injection tubing string, each time of flow string are adorned once, be transformed into once, thereby simplify working process again and reduce production costs; Once more, when explosive valve of the present utility model will reach setting value at the pressure of the gaseous state viscous crude desaturation auxiliary agent of injection string, make gas produce blast, this explosive force is enough to make the obstruction that is deposited in well casing perforation and the venturi to be eliminated, realize the de-plugging purpose, thereby omitted in the prior art, the independent de-plugging operation that is provided with, and then simplify construction technology again and reduce production costs.
Description of drawings
Fig. 1 makes use installment state schematic diagram of the present utility model
Fig. 2 is the structural type schematic diagram of the utility model packer
Fig. 3 is the structural type schematic diagram of the utility model steam injection valve
Fig. 4 is the structural type schematic diagram of the utility model explosive valve
Fig. 5 is the connecting relation schematic diagram between the utility model packer, steam injection valve, the explosive valve
The specific embodiment
As seen from Figure 1, the utility model comprise existing steam injection string all form component, promptly instlated tubular 1, telescoping tube 3, packer 4, steam injection valve 5, take over 7, tail pipe 8, plug 9, and comprise the pump seat 2 of existing flow string.The utility model difference with the prior art is that it also is provided with explosive valve 6, and according to by top-down order, instlated tubular, pump seat, telescoping tube, packer, steam injection valve, explosive valve, packer, adapter, tail pipe and plug are connected successively, the power cylinder of described packer is made of the vapour pressure cylinder, and described explosive valve is by valve body and be arranged on the valve body wall relief hole and the switching pressure limiting device is formed.
The form of structure of the utility model packer as shown in Figure 2, as seen from the figure, it is made up of central tube 10 grades, on the central tube, software tensioner ring 25 is set respectively on the cylindrical of bottom, 12 and coupling components, be fixedly connected on the cylindrical of lower end and dilate cover 11, the opposing setting on the cylindrical of middle part, following two vapour pressure cylinders, and make it air storing cavity and all be communicated with the central tube inner chamber by the radial direction through hole that is arranged on the central tube, the external part of bottom vapour pressure cylinder piston 16 and the coupling components of bottom software tensioner ring 12 match, its formation is axially moved down the promotion contact, top vapour pressure cylinder piston external part frustum face, dilate cover 11 upper end frustum faces respectively with last, the lower end accent of bottom software tensioner ring matches, the software tensioner ring is expanded outside being expanded when piston stretches out, and these packer two ends are provided with the abutment draw bail.
The coupling components of the top software tensioner ring 25 of packer is made up of interior cover 27, overcoat 26, and this coupling components makes top software tensioner ring radially, axially be positioned on the both direction.The coupling components of bottom software tensioner ring 12 is by inner sliding sleeve 13, adapter sleeve 14 and be arranged in the inner sliding sleeve 13 circle and form with the ratchet secondary 15 between central tube 10 cylindricals, this ratchet pair formation its move down non-return mechanism; This coupling components is being positioned bottom software tensioner ring in the radial direction, forms to move down with central tube in the axial direction to promote to contact.
The vapour pressure cylinder of packer constitutes by cylinder body, piston, air storing cavity.Wherein, cylinder body by annular space pull 19, cylinder sleeve 18,20 constitutes.The top pneumatic cylinder piston is made up of dynamic ring 21 and bearing collar, and this bearing collar has the external conical sleeve 22 of frustum face by inner sliding sleeve, upper end respectively again and the thrust spring 24 that is arranged between the two constitutes.Between circle and central tube 10 cylindricals ratchet pair 23 is set in the inner sliding sleeve, moves non-return mechanism on the secondary formation of this ratchet bearing collar; The bottom pneumatic cylinder piston only is made of dynamic ring 16; Above-mentioned dynamic ring connects by formation slipper seal between seal 17 and cylinder body and the central tube.
In the present embodiment, the purpose of bearing collar being made the elasticity combiner is in the packer course of work, can make between piston and the upper end software tensioner ring and remain press contacts, to guarantee to do the envelope quality.Should illustrate, in actual production, the dynamic ring and the bearing collar of piston be made one, and cancellation is during spring 17, the utility model also can use.
In the present embodiment, the abutment draw bail that is arranged at the packer upper/lower terminal is made of the lower end external screw thread of central tube 10 and the upper end internal thread that is arranged on the change snapping head 28 of central tube upper end respectively.
Should illustrate that the structure of the utility model packer and prior art packer is basic identical, both main distinctions only are the form of structure difference in the working media chamber of its power cylinder.Because the former working media chamber is used for injecting and pressure store gas, so it must make open cavities, so the intracavity inter-connection of it and central tube; And the latter's working media chamber is used to store heat expansion liquid, so it must be an enclosed cavity, so it is not communicated with mutually with central tube.
The form of structure of the utility model steam injection valve as shown in Figure 3.As seen from the figure, it is by shell 34, compositions such as valve body 37, valve ball 36, shell, valve body are tubular articles, are shaped on rod radial air vent on the circumference of shell, plant valve body in the shell, the contact of slipper seal between the two also is provided with deblocking pin 35, and valve ball and valve body upper end accent match, and can form the means of press seals contact to it, these steam injection valve two ends are provided with the abutment draw bail, and this draw bail is made of the two ends internal thread of shell respectively.
Should illustrate that the gas injection valve is existing the application in the field, oil field.Existing gas injection valve is compared with gas injection valve shown in Figure 3, and basic structure is identical, the performance unanimity.If being used for the utility model, this class gas injection valve also is fine.
The form of structure of the utility model explosive valve as shown in Figure 4, as seen from the figure, its valve body is formed by connecting by overcoat 30, upper and lower tube connector 29,33, be shaped on radially ladder hole on the sleeve side wall, this through hole constitutes described relief hole, the pressure limiting switching device of this relief hole constitutes like this: on the ladder end face of relief hole pressure limiting sheet 32 is set, and connects positioning sleeve 31 in its big stomidium, this positioning sleeve makes that the formation sealing and fixing connects between pressure limiting sheet and the described ladder end face.These explosive valve two ends are provided with the abutment draw bail, and this draw bail is made of the two ends of valve body external screw thread respectively.
Should illustrate that the said structure form of explosive valve is not unique.For example, the pressure limiting switching device of its relief hole also can be made of the common elasticity pressure limiting device of being made up of firm ball, spring and gland thereof respectively.
Fig. 5 provides the connecting relation schematic diagram between the utility model packer, steam injection valve, the explosive valve.As seen from the figure, each parts all by being arranged on the abutment draw bail at its both ends, promptly is coupled to each other with the screw thread that connects that abutment matches.
When utilizing the utility model to implement the heavy crude heat extraction operation, its construction technology and operating principle are as follows:
1, installs in the well casing under the utility model, and the valve ball of gas injection valve is kept somewhere in aboveground.
2, by prior art, in tubing string of the present utility model, throw, annotate viscous crude desaturation auxiliary agent, i.e. nitrogen injection, or drop into sulfonate and injecting carbon dioxide gas; When gas pressure reached a setting value, packer was finished and is set; Continuation increase along with gas pressure, and when reaching another higher setting value, the pressure limiting sheet of explosive valve is cracked, relief hole is open-minded, tubing string internal pressure gas is discharged from relief hole, and this gas is just being got rid of in a flash, will be because of the strong blast of environment stress sudden change causing, explosive force will make the obstruction in well casing perforation and the venturi be removed by moment, make it to realize de-plugging; Subsequently, the pressed gas of discharge will be to freely spreading in two selected oil reservoirs between packer.
3, by the stewing well of prior art.The purpose of stewing well is to make fully reflection between throwing, the viscous crude desaturation auxiliary agent of annotating the down-hole and the underground viscous crude, so that improve the notes vapour efficient of postorder.
4, valve ball is dropped in the tubing string chamber, makes it to rely on deadweight to be fallen, and with the upper end accent sealing press contacts of steam injection valve valve body; Again by injection pressure steam in the prior art phase tubing string chamber; When gas pressure reaches setting value, the deblocking pin of gas injection valve will be cut off under the pressure effect that puts on valve ball and valve component upper surface, valve ball and valve component are moved down, and make the steam vent of gas injection valve open-minded, make pressed gas in the tubing string through steam vent in two selected oil reservoirs between packer, freely spreading, annotate the vapour operation and carry out continuously, till the desaturation degree of underground viscous crude meets construction requirement.
5, press the pump rod of prior art following dress oil well pump in the tubing string chamber, and begin the oil pumping operation.
Claims (4)
1, a kind of multi-functional heavy crude heat extraction tubing string, it comprises instlated tubular, telescoping tube, packer, steam injection valve, adapter, tail pipe, plug and pump seat, it is characterized in that it also is provided with explosive valve, and according to top-down order, instlated tubular, pump seat, telescoping tube, packer, steam injection valve, explosive valve, packer, adapter, tail pipe and plug are connected successively, the power cylinder of described packer is made of the vapour pressure cylinder, and described explosive valve is made up of valve body and the relief hole and the pressure limiting switching device thereof that are arranged on the valve body wall.
2, a kind of multi-functional heavy crude heat extraction tubing string according to claim 1, it is characterized in that described packer is made up of central tube etc., on the central tube, software tensioner ring and coupling components thereof are set respectively on the cylindrical of bottom, be fixedly connected on the cylindrical of lower end and dilate cover, the opposing setting on the cylindrical of middle part, following two vapour pressure cylinders, and make it air storing cavity and be communicated with the central tube inner chamber, the coupling components of bottom vapour pressure cylinder piston external part and bottom software tensioner ring matches, its formation is moved down the promotion contact, top vapour pressure cylinder piston external part frustum face, dilate set upper side frustum face respectively with last, the lower end accent of bottom software tensioner ring matches, the software tensioner ring is expanded outside being expanded when piston stretches out, and these obstructing instrument two ends are provided with the abutment draw bail.
3, a kind of multi-functional heavy crude heat extraction tubing string according to claim 1 and 2, it is characterized in that described steam injection valve is by shell, composition such as valve body, valve ball, shell, valve body are tubular articles, are shaped on rod radial air vent on the circumference of shell, plant valve body in the shell, the contact of slipper seal between the two also is provided with the deblocking pin, valve ball and valve body upper end accent match, and can form the means of press seals contact to it, and these steam injection valve two ends are provided with the abutment draw bail.
4, a kind of multi-functional heavy crude heat extraction tubing string according to claim 3, it is characterized in that being shaped on radially ladder hole on the valve body wall of described explosive valve, this through hole constitutes described relief hole, the pressure limiting switching device of this relief hole constitutes like this: on the ladder end face of relief hole the pressure limiting sheet is set, and in its big stomidium, connect positioning sleeve, this positioning sleeve makes and forms sealing and fixing between pressure limiting sheet and the described ladder end face and connect, and these steam injection valve two ends are provided with the abutment draw bail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200135216U CN201162532Y (en) | 2007-07-25 | 2007-07-25 | Multifunctional thick oil hot-extraction column jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200135216U CN201162532Y (en) | 2007-07-25 | 2007-07-25 | Multifunctional thick oil hot-extraction column jacket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201162532Y true CN201162532Y (en) | 2008-12-10 |
Family
ID=40183470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200135216U Expired - Lifetime CN201162532Y (en) | 2007-07-25 | 2007-07-25 | Multifunctional thick oil hot-extraction column jacket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201162532Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536183A (en) * | 2012-01-31 | 2012-07-04 | 中国石油化工股份有限公司 | Underground gas injection pipe column |
| CN102926677A (en) * | 2012-12-02 | 2013-02-13 | 中国石油化工股份有限公司 | Long-tail-pipe oil pumping pipe column for preventing corrosion of casing |
| CN103410470A (en) * | 2013-08-22 | 2013-11-27 | 中国海洋石油总公司 | Thermal injection pipe column and thermal injection valve of heavy oil thermal recovery well |
| CN104373095A (en) * | 2014-09-15 | 2015-02-25 | 中国石油天然气股份有限公司 | Hollow layering steam injecting system |
| CN104612641A (en) * | 2015-02-04 | 2015-05-13 | 中国石油大学(华东) | Injection and production integrated pipe column and design method thereof |
| CN114575810A (en) * | 2020-12-01 | 2022-06-03 | 中国石油天然气股份有限公司 | Layered treatment and layered steam injection process pipe column |
-
2007
- 2007-07-25 CN CNU2007200135216U patent/CN201162532Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536183A (en) * | 2012-01-31 | 2012-07-04 | 中国石油化工股份有限公司 | Underground gas injection pipe column |
| CN102536183B (en) * | 2012-01-31 | 2014-11-12 | 中国石油化工股份有限公司 | Underground gas injection pipe column |
| CN102926677A (en) * | 2012-12-02 | 2013-02-13 | 中国石油化工股份有限公司 | Long-tail-pipe oil pumping pipe column for preventing corrosion of casing |
| CN103410470A (en) * | 2013-08-22 | 2013-11-27 | 中国海洋石油总公司 | Thermal injection pipe column and thermal injection valve of heavy oil thermal recovery well |
| CN103410470B (en) * | 2013-08-22 | 2016-03-02 | 中国海洋石油总公司 | A kind of heat injection tubing string of thick oil thermal extraction and heat injection valve thereof |
| CN104373095A (en) * | 2014-09-15 | 2015-02-25 | 中国石油天然气股份有限公司 | Hollow layering steam injecting system |
| CN104612641A (en) * | 2015-02-04 | 2015-05-13 | 中国石油大学(华东) | Injection and production integrated pipe column and design method thereof |
| CN104612641B (en) * | 2015-02-04 | 2015-11-04 | 中国石油大学(华东) | A kind of note adopts integrated pipe column and method for designing thereof |
| CN114575810A (en) * | 2020-12-01 | 2022-06-03 | 中国石油天然气股份有限公司 | Layered treatment and layered steam injection process pipe column |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102966327B (en) | Expansion tube | |
| CN201162532Y (en) | Multifunctional thick oil hot-extraction column jacket | |
| CN201053310Y (en) | Horizontal well sectional steam injection pipe column | |
| CN103696728A (en) | Double-stage self-sealing thermal recovery packer | |
| CN201705280U (en) | Permanent type packer for anchoring of inserting tube | |
| CN102650202B (en) | Expansion compression type packer | |
| CN206053900U (en) | A kind of hydraulic control self solves sealed packer | |
| CN201021612Y (en) | Separation device for dense SAGD steam driven gas injection well | |
| CN210509102U (en) | Axial compression assembly for sealing perforation section | |
| CN201650203U (en) | Double rubber-barrel isolation packer | |
| CN209011780U (en) | It is a kind of without anchoring thermal packer | |
| CN107476789B (en) | Injection and production integrated pump and method of linkage packer | |
| CN110485958A (en) | A kind of oil jacket annulus suppresses the tubing anchor set | |
| CN105201476A (en) | Sliding sleeve type hydraulic jetting device and pipe column with sliding sleeve type hydraulic jetting devices | |
| CN105696983B (en) | For spraying the instrument of envelope pressure and including its tubing string | |
| CN106089147B (en) | It is adjustable to set force value fracturing packer | |
| CN201953365U (en) | Underground steam injection, sealing, heat insulation and compensation integrated device | |
| CN202578623U (en) | Expansion and compression type packer device | |
| CN209483323U (en) | Fireflood gas injection switch and fireflood gas injection tube column | |
| CN206942722U (en) | For former well casing post packing device and test sealing pipe column | |
| CN205955690U (en) | Adjustable setting force value fracturing packer | |
| CN201358747Y (en) | Small diameter hydraulic packer | |
| CN107313761A (en) | A kind of pressure break hole opening/closing system | |
| CN205172509U (en) | Separate stratum fracfturing packer | |
| CN105696995B (en) | The tool of envelope pressure is sprayed for pressure stage differential style and includes its tubing string |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081210 |
|
| CX01 | Expiry of patent term |