CN100516453C - Oil well intelligent anti-polluting device - Google Patents
Oil well intelligent anti-polluting device Download PDFInfo
- Publication number
- CN100516453C CN100516453C CNB2006101303755A CN200610130375A CN100516453C CN 100516453 C CN100516453 C CN 100516453C CN B2006101303755 A CNB2006101303755 A CN B2006101303755A CN 200610130375 A CN200610130375 A CN 200610130375A CN 100516453 C CN100516453 C CN 100516453C
- Authority
- CN
- China
- Prior art keywords
- sealing plate
- intelligent anti
- sealing
- polluting device
- top connection
- 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
Images
Abstract
The present invention relates to intelligent anti-pollution equipment for oil well. It includes a testing tube main body, on the upper end and lower end of said testing tube main body an upper end cover and a lower end cover are respectively connected, the form of said testing tube main body is cylindrical form, its internal cavity is a rectangular cavity, in the middle portion and lower end of inner wall of upper end cover a sealing ring is respectively mounted, the upper end of the rectangular cavity of said testing tube main body is equipped with a sealing plate pin shaft, one end of said sealing plate is tightly connected with said sealing plate pin shaft. On the side wall of lower end cover an oil discovery channel is cut, and in its interior a check valve is mounted. Said invention also provides its working principle and concrete operation method.
Description
Technical field
The invention belongs to oil mining Technology Underground field, particularly relating to a kind of Production Wells process that is used for needs to change electric submersible pump producing tubular column operation and oil well intelligent anti-polluting device simple in structure, convenient to operation, long service life.
Background technology
In the oil exploitation process, after the electric submersible pump of down-hole breaks down,, must change the down-hole electric submersible pump in order to resume production, whole downhole production tubing string is made up of the two large divisions: top is " Y " type electric submersible pump producing tubular column, and tubing string is adopted for the branch that each oil reservoir is separated in the bottom.After tripping out the top tubing string, whole oil reservoir is in communicating state, and the well liquid of the upper sleeve stratum of will bleeding certainly will cause the pollution of oil reservoir.The method that generally adopts is to adopt to adorn on the tubing string at branch to be located in joint at present; before playing top " Y " type electric submersible pump producing tubular column; steel wire operation is lowered to the blanking plug seat and is enclosed in and is located in the joint; passage with the leakage of plugged well liquid; can protect oil reservoir like this; but adopt steel wire operation then to have bigger operating risk, because " Y " the production blanking plug in the type joint and the blanking plug external diameter of reservoir plugging be very approaching, so have risk not in place under the blanking plug.
Summary of the invention
The present invention provides a kind of Production Wells process that is used for to need to change electric submersible pump producing tubular column operation and oil well intelligent anti-polluting device simple in structure, convenient to operation, long service life for solving the technical problem that exists in the known technology.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
Oil well intelligent anti-polluting device, it is characterized in that: comprise the environmental control system main body, connect the top connection that has through hole in environmental control system main body upper end, the lower end connects the lower contact that has through hole, described environmental control system body shape is cylindric, its inner chamber is a rectangular cavity, described top connection through hole and lower contact through hole all are coaxial with rectangular cavity, have a sealing ring mounting groove on the inwall of top connection middle part, in the sealing ring mounting groove, sealing ring is installed, top connection is embedded with sealing ring by on the inwall of lower end, have sealing plate bearing pin mounting groove in environmental control system main body rectangular cavity upper end, cooperate in this mounting groove the sealing plate bearing pin is housed, sealing plate one end is fastenedly connected the sealing plate bearing pin, at sealing plate bearing pin two ends torsion spring is installed, torsion spring one end props up the sealing plate lower surface, and the other end props up intelligent anti-polluting device main body rectangular cavity wall, and the lower contact lower end is provided with the screw thread that is connected with oil pipe, one sidewall of lower contact is provided with oil discharge passage, and one way valve is installed in the oil discharge passage.
The present invention can also adopt following technical measures:
Sealing ring mounting groove on the inwall of described top connection middle part is a rectangular channel, in this rectangular channel rectangular seal is installed.
Be embedded with lip-type packing on the inwall of described top connection lower end.
Described sealing plate upper surface is provided with the seal boss that is connected as a single entity with it.
Described torsion spring adopts high-performance and corrosion resistant spring steel material to make, and its torsion is chosen as between the 200-1000kgf.
At normal production of hydrocarbons state, top electric submersible pump producing tubular column sealing short circuit inserts, open the sealing plate in the intelligent anti-polluting device rectangular cavity, being sealed and matched in its sealing short circuit and the intelligent anti-polluting device top connection, the sealing test passage, the about half-twist of sealing plate is approximate parastate to rectangular cavity wall place with the rectangular cavity wall, can carry out any test jobs; Under improper production of hydrocarbons state, after top electric submersible pump producing tubular column sealing short circuit proposed intelligent anti-polluting device, sealing plate contact with the top connection lip-type packing under the effect of torque spring, sealed top well liquid, prevented the well liquid stratum of bleeding.
Advantage and good effect that the present invention has are: oil well intelligent anti-polluting device of the present invention is reasonable in design, and is simple in structure, has long application life.When the oil well ordinary production, top electric submersible pump producing tubular column sealing short circuit is opened sealing plate by gravity, and the about half-twist of sealing plate is approximate parastate to rectangular cavity wall place with the rectangular cavity wall, has guaranteed the unimpeded of test channel; After the down-hole electric submersible pump is out of order; when needing to change electric submersible pump; electric submersible pump producing tubular column sealing short circuit in top is proposed; after top electric submersible pump producing tubular column sealing short circuit proposes oil well intelligent anti-polluting device; sealing plate cuts out under the effect of torque spring automatically; prevent the leakage of well liquid, protected oil reservoir.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the structure enlarged diagram of sealing plate of the present invention;
Fig. 4 is an ordinary production view of the present invention;
Fig. 5 is the B-B sectional view of Fig. 4.
Among the figure: 1, top connection; 1-1, rectangular seal; 1-2, lip-type packing; 2, environmental control system main body; 2-1, sealing plate bearing pin mounting groove; 3, sealing plate; 3-1, sealing plate seal boss; 3-2, bearing pin; 3-3, torsion spring; 4, lower contact; 4-1, one way valve; 5, top electric submersible pump producing tubular column sealing short circuit; 6, production of hydrocarbons passage; 7, oil discharge passage; 8, test channel.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1-Fig. 3, oil well intelligent anti-polluting device, comprise environmental control system main body 2, have the top connection 1 of through hole by being threaded in environmental control system main body 2 upper ends, the lower contact 4 that environmental control system main body lower end is threaded and has through hole, the shaped design of described environmental control system main body 2 is have inner chamber cylindric, and its inner chamber processing is a rectangular cavity, and described top connection through hole and lower contact through hole are all coaxial with rectangular cavity.Have a sealing ring mounting groove on the inwall of top connection middle part, the sealing ring mounting groove is a rectangular channel, rectangular seal 1-1 is installed in the sealing ring mounting groove, top connection is embedded with lip-type packing 1-2 by on the inwall of lower end, the rectangular cavity upper end of environmental control system main body 2 has sealing plate bearing pin mounting groove 2-1, cooperate in the sealing plate bearing pin mounting groove sealing plate bearing pin 3-2 is housed, one end of sealing plate 3 is fastenedly connected sealing plate bearing pin 3-2, and described sealing plate upper surface is provided with the seal boss 3-1 that is connected as a single entity with it.Be separately installed with torsion spring 3-3 at sealing plate bearing pin two ends, one end of torsion spring props up sealing plate 3 lower surfaces, be that sealing plate be not subjected under the external force active state, under the effect of torsion spring, seal boss 3-1 on the sealing plate is contacted with the lip-type packing 1-2 of upper end cover and sealing test passage 8, and the torsion spring other end props up testing tube main body rectangular cavity wall.Lower contact 4 lower ends are production of hydrocarbons passage 6, and are provided with the screw thread that is connected with oil pipe, have oil discharge passage 7 on a sidewall of lower contact, and one way valve 4-1 is installed in the oil discharge passage 7.Described torque spring should have in long service life, the use characteristics such as the torsion loss is little and corrosion-resistant, reasonably torsion is selected and can be determined according to production test tubular column structure and weight, as in the present embodiment, torsion spring 3-3 can adopt high performance spring steel material to make, torsion reduces less than 5%, so the torsion of torsion spring is chosen as 1000kgf.
Operating principle of the present invention is:
At oil well ordinary production state, see also Fig. 4 and Fig. 5, sealing plate 3 is opened by under the effect of top electric submersible pump producing tubular column gravity, and test channel is opened simultaneously, and down-hole crude oil comes to enter annular space by one way valve 4-1 from lower contact 4 bottoms.
At the nonproductive state of oil well, see also Fig. 1 and Fig. 2, after top electric submersible pump producing tubular column sealing short circuit 5 proposed environmental control systems, torsion spring 3 was closed test channel 8 automatically under the twisting force of itself, prevented the well liquid stratum of bleeding, polluted reservoir.Certainly the present invention is not limited thereto, can be set to different-diameter according to the actual job situation as above-mentioned test channel 8 and production of hydrocarbons passage 6.
Above embodiment does not only limit technical scheme of the present invention in order to explanation, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from any modification or partial replacement of the spirit and scope of technical solution of the present invention, it all should be encompassed in claim of the present invention and protect in the middle of the scope.
Claims (6)
1. oil well intelligent anti-polluting device, it is characterized in that: comprise the environmental control system main body, connect the top connection that has through hole in environmental control system main body upper end, the lower end connects the lower contact that has through hole, described environmental control system body shape is cylindric, its inner chamber is a rectangular cavity, described top connection through hole and lower contact through hole all are coaxial with rectangular cavity, have a sealing ring mounting groove on the inwall of top connection middle part, in the sealing ring mounting groove, sealing ring is installed, top connection is embedded with sealing ring by on the inwall of lower end, have sealing plate bearing pin mounting groove in environmental control system main body rectangular cavity upper end, cooperate in this mounting groove the sealing plate bearing pin is housed, sealing plate one end is fastenedly connected the sealing plate bearing pin, at sealing plate bearing pin two ends torsion spring is installed, torsion spring one end props up the sealing plate lower surface, and the other end props up intelligent anti-polluting device main body rectangular cavity wall, and the lower contact lower end is provided with the screw thread that is connected with oil pipe, one sidewall of lower contact is provided with oil discharge passage, and one way valve is installed in the oil discharge passage.
2. oil well intelligent anti-polluting device according to claim 1 is characterized in that: the sealing ring mounting groove on the inwall of described top connection middle part is a rectangular channel, in this rectangular channel rectangular seal is installed.
3. oil well intelligent anti-polluting device according to claim 1 is characterized in that: be embedded with lip-type packing on the inwall of described top connection lower end.
4. oil well intelligent anti-polluting device according to claim 1 is characterized in that: described sealing plate upper surface is provided with the seal boss that is connected as a single entity with it.
5. oil well intelligent anti-polluting device according to claim 1 is characterized in that: torsion spring adopts high-performance and corrosion resistant spring steel material to make, and its torsion is chosen as between the 200-1000kgf.
6. oil well intelligent anti-polluting device according to claim 1, it is characterized in that: at normal production of hydrocarbons state, top electric submersible pump producing tubular column sealing short circuit inserts, open the sealing plate in the intelligent anti-polluting device rectangular cavity, the interior two seals circle of its sealing short circuit and intelligent anti-polluting device top connection cooperates, the sealing test passage, and the about half-twist of sealing plate is to rectangular cavity wall place, be approximate parastate with the rectangular cavity wall, can carry out test jobs; Under improper production of hydrocarbons state, after top electric submersible pump producing tubular column sealing short circuit proposed intelligent anti-polluting device, sealing plate contact by the sealing ring on the inwall of lower end with top connection under the effect of torsion spring, seals top well liquid, prevented the well liquid stratum of bleeding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101303755A CN100516453C (en) | 2006-12-19 | 2006-12-19 | Oil well intelligent anti-polluting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101303755A CN100516453C (en) | 2006-12-19 | 2006-12-19 | Oil well intelligent anti-polluting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1975100A CN1975100A (en) | 2007-06-06 |
| CN100516453C true CN100516453C (en) | 2009-07-22 |
Family
ID=38125398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101303755A Expired - Fee Related CN100516453C (en) | 2006-12-19 | 2006-12-19 | Oil well intelligent anti-polluting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100516453C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226382B (en) * | 2011-05-19 | 2012-05-30 | 深圳市远东石油钻采工程有限公司 | Uninterrupted circulating pup joint and continuous slurry circulation method for petroleum well drilling |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4583596A (en) * | 1985-09-13 | 1986-04-22 | Camco, Incorporated | Dual metal seal for a well safety valve |
-
2006
- 2006-12-19 CN CNB2006101303755A patent/CN100516453C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4583596A (en) * | 1985-09-13 | 1986-04-22 | Camco, Incorporated | Dual metal seal for a well safety valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1975100A (en) | 2007-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104499993B (en) | Dual-flap-valve type downhole safety valve | |
| CN102061901B (en) | Compensation type multi-purpose annular blowout preventer | |
| CN104389554A (en) | Underground pressure control circulating switch valve | |
| CN103742099A (en) | Perforation, fracturing, sealing and separating device | |
| CN200985773Y (en) | Oil well intelligent anti-pollution device | |
| CN206830131U (en) | A kind of water injection well sand setting constant pressure check valve | |
| CN100516453C (en) | Oil well intelligent anti-polluting device | |
| CN203362142U (en) | Actuating and differential pressure type fracturing sliding sleeve | |
| CN107165604A (en) | Liquid-proof fluctuation drainage device and its application method | |
| CN201843571U (en) | Oil drainage type packer | |
| CN104019030B (en) | A kind of reacting cycle liquid drives the discharge device of oil pumping screw pump | |
| CN201723196U (en) | Self-sealing setting ball seat | |
| CN209539322U (en) | A kind of deblocking time stage stress packer group | |
| CN110374537B (en) | Electric control valve type top sealing device | |
| CN210068069U (en) | Anti-leakage double-sealing well-flushing packer | |
| CN207795141U (en) | Packer and water injection string | |
| CN205778710U (en) | A kind of packer | |
| CN205012966U (en) | Bailing well head device | |
| CN204960843U (en) | Two effect recycle valves | |
| CN2683836Y (en) | Hydraulic twin-tub anchoring packer | |
| CN204402460U (en) | Logger hydraulic system outside pressure balancing device | |
| CN218844274U (en) | Open formula oil recovery sliding sleeve by force | |
| CN204457526U (en) | Full-automatic slide shell type continuous circulation valve | |
| CN103382831B (en) | Double-hydraulic-cylpacking-off packing-off device | |
| CN203547648U (en) | Double-hydraulic-cylinder packer device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Beijing City, Dongcheng District Chaoyangmen No. 25 North Street CNOOC building zip code: 100010 Co-patentee after: CNOOC Energy Development Co., Ltd. Patentee after: China National Offshore Oil Corporation Address before: Beijing City, Dongcheng District Chaoyangmen No. 25 North Street CNOOC building zip code: 100010 Co-patentee before: CNOOC Oil Base Group Co., Ltd. Patentee before: China National Offshore Oil Corporation |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20161219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |