CN202578615U - Annular pressure monitoring sealing device for geological drilling - Google Patents
Annular pressure monitoring sealing device for geological drilling Download PDFInfo
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- CN202578615U CN202578615U CN 201220163690 CN201220163690U CN202578615U CN 202578615 U CN202578615 U CN 202578615U CN 201220163690 CN201220163690 CN 201220163690 CN 201220163690 U CN201220163690 U CN 201220163690U CN 202578615 U CN202578615 U CN 202578615U
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- orifice
- sealing device
- orifice tube
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Abstract
The utility model relates to an annular space pressure monitoring sealing device is used in geological drilling is applicable to drilling maintenance operations such as pressure monitoring, pressure control, pressure leaking stoppage in the geological drilling construction. By the center tube, seal shell, the manometer, the relief valve, the pressure release pipe, the cock, the orifice pipe, the key, the sealing washer is constituteed, seal shell installs on the center tube, the last processing of seal shell has four L shape breachs, the manometer is connected with the relief valve and is installed on seal shell, the pressure release pipe is installed on seal shell, the cock is installed to the pressure release pipe upper end, the sealing washer is installed on the orifice pipe, the orifice pipe is installed in seal shell, the welding has four keys on the orifice pipe outer wall to be used for locking seal shell and orifice pipe's relative position. The utility model discloses can real-time supervision pit shaft annular space pressure change, can seal operations such as pressurize, pressure release simultaneously, have pressure monitoring, pressure control, keep the pore wall effect such as stable, can improve the effect and the quality of leaking stoppage by a wide margin, control gush water and be convenient for the kill job to improve the probing technical level, effectively reduce the probing cost.
Description
Affiliated technical field
The utility model relates to a kind of geological drilling and monitors sealing device with annular pressure, is applicable to the upkeep operations of holing such as pressure monitoring in the geological drilling construction, pressure control, pressure leak stopping.
Background technology
In geological drilling, the aperture is normally open.The shortcoming in this open aperture is: 1. can't monitor annular pressure in real time, uncontrollable annular pressure can not carry out complex jobs such as pressure leak stopping, control water burst; 2. dangerous, do not possess complex accident abilities such as the blowout of processing, well kick; 3. not environmental protection, drilling fluid reclaims difficulty, and is bigger to natural environment pollution and destruction.
In the oil well probing, realize operation process such as aperture sealing, pressure leak stopping usually through sealing devices such as preventer or aperture throttling arrangements.In geological drilling, do not have monitoring of similar annular pressure and sealing device, and the relevant device on the oil receives the restriction of specification and cost, can't satisfy the geological drilling instructions for use.Therefore, press for a kind of geological drilling simple in structure, with low cost and monitor sealing device, to realize boring upkeep operations such as annular pressure monitoring, pressure leak stopping and water burst control with annular pressure.
Summary of the invention
In order to overcome acyclic pneumatics power monitoring sealing device in the current geological drilling; Can't carry out annular pressure monitoring, control, can't carry out the technical problem of complex jobs such as pressure leak stopping, kill-job, blowout prevention, the utility model provides a kind of geological drilling to monitor sealing device with annular pressure; This device not only can be monitored wellbore annulus pressure in real time and changed; Simultaneously can seal operations such as pressurize, pressure release, the effect that can significantly improve leak stopping is convenient to kill job with quality, control water burst, has pressure monitoring, pressure control, keeps hole wall effect such as to stablize; Thereby improve the drilling technique level, effectively reduce drilling cost.
The utility model solves the technical scheme that its technical problem adopted: a kind of geological drilling is made up of central tube, can, pressure meter, safety valve, relief tube, stopcock, orifice tube, key, sealing ring with annular pressure monitoring sealing device; Lower end, said central tube upper end all can be connected with drilling rod; Can is installed on the central tube through screw thread; Be processed with four L shaped breach on the can, pressure meter and safety valve are mounted on the can, and relief tube is installed on the can through screw thread; The upper end of relief tube is equipped with stopcock; Sealing ring is installed on the orifice tube, and orifice tube outer wall upper edge circumferentially is welded with four keys, and orifice tube is installed in the can; Four keys on the orifice tube screw in the L shaped breach lock can of can and the relative position of orifice tube, limit moving axially of can and orifice tube.During work; Be lowered to the assigned address in the orifice tube after earlier annular pressure being monitored sealing device central tube upper end, lower end jointed rod; The L shaped breach lock can of four keys screw-in cans on the orifice tube and the relative position of orifice tube are accomplished the installation that annular pressure is monitored sealing device; Can monitor annular pressure in real time through pressure meter during work, realize the release or the pressurize operation of annular pressure through the state that opens or closes that changes relief tube upper end safety valve.Central tube, can, relief tube, key can be selected A3 steel or 45# steel for use, accomplish through working procedure processing such as forging, car, sharp, brill, planes; Sealing ring can be processed with rubber and resin elastomeric material.
The beneficial effect of the utility model is to monitor sealing device for geological drilling provides a kind of geological drilling with annular pressure; Annulus between closed orifices pipe and drilling rod is monitored wellbore annulus pressure in real time and is changed more easily, can seal operations such as pressurize, pressure release simultaneously; Effect and quality, the control water burst that can significantly improve leak stopping are convenient to kill job; Realize pressure monitoring, pressure control, keep hole wall stable, thereby improve the drilling technique level, effectively reduce drilling cost.In addition, the utility model is simple in structure, easy to process, cost is low, the life-span is long, can reuse for a long time.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the utility model application principle figure.
Fig. 2 is the utility model elevation.
Fig. 3 is the utility model right view.
Fig. 4 is the utility model vertical view.
Fig. 5 is the utility model A-A sectional drawing.
Fig. 6 is the utility model orifice tube elevation.
Fig. 7 is the utility model orifice tube B-B sectional drawing.
1. top rods among Fig. 1,2. annular pressure monitoring sealing device, 3. orifice tube, 4. bottom drilling rod; 5. central tubes among Fig. 2,6. can, 7. relief tube, 8. stopcock, 10. key, 11. safety valves, 12. pressure meters; 5. central tubes among Fig. 3,6. can, 7. relief tube, 8. stopcock, 10. key; 5. central tubes among Fig. 4,6. can, 7. relief tube, 8. stopcock; 5. central tubes among Fig. 5,6. can, 7. relief tube, 8. stopcock, 9. sealing ring, 10. key, 11. safety valves, 12. pressure meters; 9. sealing rings, 10. key among Fig. 6; 9. sealing rings, 10. key among Fig. 7.
The specific embodiment
In Fig. 1; Annular pressure monitoring sealing device 2 central tubes 5 upper ends connect top rod 1; Port seal 2 lower ends connect bottom drilling rod 4; Be lowered to the assigned address in the orifice tube 3; The L shaped breach lock can 6 that four keys on the orifice tube 3 10 is screwed in cans 6 and the relative position of orifice tube 3 are accomplished the installation of annular pressure monitoring sealing device 2, can realize the release or the pressurize operation of annular pressure through the state that opens or closes that changes relief tube 7 upper end stopcocks 8 through pressure meter 12 monitoring annular pressures in real time during work.
In Fig. 5; Central tube 5 upper ends, lower end all are processed with the trapezoidal thread button and are used to connect top rod 1 and bottom drilling rod 4; Can 6 is installed on the central tube through screw thread, is processed with 2 on can 6 upper surfaces and connects circular hole, is processed with four L shaped breach on can 6 outer walls; The perforation circular hole place that pressure meter 12 and safety valve 11 are mounted on left side, can 6 upper surfaces can monitor annular pressure in real time through pressure meter 12; Relief tube 7 is installed in the perforation circular hole place on right side, can 6 upper end through screw thread, and the upper end of relief tube 7 is equipped with stopcock 8, realizes the release or the pressurize operation of annular pressure through the state that opens or closes that changes relief tube 7 upper end stopcocks 8; Sealing ring 9 is installed on the orifice tube 3; Orifice tube 3 upper edges circumferentially are welded with four keys 10; Orifice tube 3 is installed in the can 6; Four keys 10 on the orifice tube 3 screw in the L shaped breach lock can 6 of can 6 and the relative position of orifice tube 3, and restriction can 6 moves axially with orifice tube 3.
In Fig. 7; Be processed with two annular grooves on orifice tube 3 outer walls, sealing ring 9 is installed in the annular groove place of orifice tube 3, and orifice tube 3 outer wall upper edges circumferentially are welded with four keys 10; Be used to lock the relative position of can 6 and orifice tube 3, restriction can 6 moves axially with orifice tube 3.
In Fig. 1; When application the utility model annular pressure monitoring sealing device 2 carries out the pressure plugging operations; Annular pressure is monitored sealing device 2 central tubes 5 upper ends connect top rod 1; Port seal 2 lower ends connect bottom drilling rod 4, are lowered to the assigned address in the orifice tube 3, and the L shaped breach lock can 6 that four keys on the orifice tube 3 10 is screwed in can 6 is accomplished the installation that annular pressure is monitored sealing device 2 with the relative position of orifice tube 3; Can monitor annular pressure in real time through pressure meter 12, realize the release or the pressurize operation of annular pressure through the state that opens or closes that changes relief tube 7 upper end stopcocks 8.In pressure leak stopping when work, pump into leakage-stop liquid and drilling fluid in the hole through slush pump, and through pressure meter 12 monitoring annular pressures in real time, termination of pumping pressurize after reaching design pressure is opened stopcock 8 release pressures completion pressure plugging operations after reaching the leak stopping requirement.
More than be the preferred embodiment of the utility model, every change of being made according to the utility model technical scheme when the function that is produced does not exceed the scope of the utility model technical scheme, all belongs to the protection domain of the utility model.
Claims (4)
1. a geological drilling is monitored sealing device with annular pressure, by orifice tube (3), and central tube (5); Can (6), relief tube (7), stopcock (8); Sealing ring (9), key (10), safety valve (11); Pressure meter (12) is formed, and it is characterized in that lower end, said central tube (5) upper end all can be connected with drilling rod, and can (6) is installed on the central tube (5) through screw thread; Be processed with four L shaped breach on the can (6), pressure meter (12) is mounted on the can (6) with safety valve (11), and relief tube (7) is installed on the can (6) through screw thread; The upper end of relief tube (7) is equipped with stopcock (8), and sealing ring (9) is installed on the orifice tube (3), and orifice tube (3) outer wall upper edge circumferentially is welded with four keys; Orifice tube (3) is installed in the can (6), and four keys on the orifice tube (3) screw in the L shaped breach lock can (6) of can (6) and the relative position of orifice tube (3), and restriction can (6) moves axially with orifice tube (3).
2. a kind of geological drilling according to claim 1 is monitored sealing device with annular pressure; It is characterized in that being processed with on can (6) upper surface 2 and connect circular hole; The perforation circular hole place that pressure meter (12) and safety valve (11) are mounted on left side, can (6) upper surface can monitor annular pressure in real time through pressure meter (12).
3. a kind of geological drilling according to claim 1 is monitored sealing device with annular pressure, it is characterized in that being processed with two annular grooves on orifice tube (3) outer wall, and sealing ring (9) is installed in the annular groove place of orifice tube (3).
4. a kind of geological drilling according to claim 1 is monitored sealing device with annular pressure; It is characterized in that relief tube (7) is installed in the perforation circular hole place on right side, can (6) upper end through screw thread; The upper end of relief tube (7) is equipped with stopcock (8), realizes the release or the pressurize operation of annular pressure through the state that opens or closes that changes relief tube (7) upper end stopcock (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220163690 CN202578615U (en) | 2012-04-18 | 2012-04-18 | Annular pressure monitoring sealing device for geological drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220163690 CN202578615U (en) | 2012-04-18 | 2012-04-18 | Annular pressure monitoring sealing device for geological drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202578615U true CN202578615U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220163690 Expired - Fee Related CN202578615U (en) | 2012-04-18 | 2012-04-18 | Annular pressure monitoring sealing device for geological drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202578615U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291285A (en) * | 2013-06-04 | 2013-09-11 | 西南石油大学 | Experimental apparatus and experimental method for simulating gas-well annulus pressure carrying and air cutting processes |
| CN109138841A (en) * | 2018-08-24 | 2019-01-04 | 沈阳建筑大学 | A kind of groundwater monitoring well construction device and its application method with reinforcing well casing and suspension type auxiliary frame |
-
2012
- 2012-04-18 CN CN 201220163690 patent/CN202578615U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291285A (en) * | 2013-06-04 | 2013-09-11 | 西南石油大学 | Experimental apparatus and experimental method for simulating gas-well annulus pressure carrying and air cutting processes |
| CN109138841A (en) * | 2018-08-24 | 2019-01-04 | 沈阳建筑大学 | A kind of groundwater monitoring well construction device and its application method with reinforcing well casing and suspension type auxiliary frame |
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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: 20121205 Termination date: 20140418 |