CN102979475A - Orifice blowout prevention and water blocking system and water blocking process of orifice blowout prevention and water blocking system - Google Patents
Orifice blowout prevention and water blocking system and water blocking process of orifice blowout prevention and water blocking system Download PDFInfo
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- CN102979475A CN102979475A CN2012105070798A CN201210507079A CN102979475A CN 102979475 A CN102979475 A CN 102979475A CN 2012105070798 A CN2012105070798 A CN 2012105070798A CN 201210507079 A CN201210507079 A CN 201210507079A CN 102979475 A CN102979475 A CN 102979475A
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Abstract
The invention discloses an orifice blowout prevention and water blocking system, which comprises a blowout prevention main pipe, wherein one end of the blowout prevention main pipe is connected with a flange, a rotating body is screwed inside the other end of the blowout prevention main pipe, a water blocking steel pad is arranged between the rotating body and the flange, a water discharging opening is arranged at the side surface of the blowout prevention main pipe, a clamping device is arranged inside the blowout prevention main pipe and is positioned at one side of the water coming direction of the water discharging opening, and the clamping device is connected with a rotating handle. The invention also provides a water blocking process of the orifice blowout prevention and water blocking system. All parameters can be proportionally regulated according to the diameter of a drilling rod, and the system and the process are applicable to various kinds of drilling. The system and the process have the beneficial effects that the operation of the device is convenient, the price is low, the process is simple, the size is small, the pressure resistance performance is good, and particularly, the blowout prevention and water blocking performance is good.
Description
Technical field
The present invention relates to a kind of orifice blowout prevention Water blocking system and using method thereof, belong to the probing slip casting fields such as mine, traffic, water conservancy.
Background technology
Along with all kinds of mines pit mining degree of depth continues to increase, underground construction gush gushing water become the construction and mining safety in main potential safety hazard and problem demanding prompt solution, inevitably to use drilling equipment in the preventing and controlling of underground construction water damage, at present drilling equipment mainly is divided into aboveground and the two kinds of corresponding equipment in down-hole, the drilling equipment of down-hole have volume little, lightweight, make things convenient for the characteristics such as transportation.
The grouting for water blocking principle is exactly to visit first rear brill.Carry out grouting filling and shutoff for water source and mistake aquaporin.In drilling process, when boring pass the aquifer, when crossing the situation such as aquaporin, molten chamber or goaf, have a large amount of water under high pressures or high temperature water etc. with boring ejection, the generation of cause easily that the constructor is injured, boring can not normal construction or drilling rod is flooded the rough sledding such as tunnel by the water under high pressure ejection when extracting drilling rod.For avoiding the generation of this situation, occurred a large amount of blowout preventions on the market, block water, the device such as diminishing, but these device existent defects are: price height, complex structure, volume is large or compressive property is poor etc.
According to the needs of the market status and job site, the spy has invented a kind of orifice blowout prevention Water blocking system and technique thereof, has avoided the shortcoming of above-mentioned similar devices, more is conducive to construction.
Summary of the invention
The objective of the invention is provides a kind of orifice blowout prevention Water blocking system and the technique that blocks water thereof for overcoming above-mentioned the deficiencies in the prior art.
For achieving the above object, the present invention adopts following technical proposals:
A kind of orifice blowout prevention Water blocking system comprises the blowout prevention supervisor, and an end mounting flange is responsible in blowout prevention, and the inside of the other end is rotary with rotary body, is provided with the steel pad that blocks water between rotary body and the flange, and blowout prevention supervisor side is provided with discharge opening; Described blowout prevention supervisor inflow direction one side inner and that be positioned at discharge opening is provided with gripping mechanism, and this gripping mechanism connects rotating handle.
Because the gripping mechanism of this system is located at discharge opening inflow direction one side, so it can tighten the gap that drilling rod can at utmost reduce again the blowout prevention supervisor, reduce bore flooding quantity.
Need to tighten drilling rod when following situation: (1) continues to creep into when increasing drilling rod or removing drilling rod when running into water under high pressure, the large needs of water yield, the incompatible realization purpose of constructing that matches of the chucking system on this device and the rig; (2) when bore flooding quantity excessive, water yield in withdrawing from the drilling rod process is during greater than the job site drainability, for avoiding the gripping mechanism that water burst floods among the present invention of job site to tighten drilling rod, remove the drilling rod of this system outside, unclamp rotary body by handle, the steel pad is replaced by the steel plate of measure-alike atresia, then install rotary body and tighten, close at last the valve on the spilled water hole place flange, can in the situation that drilling rod is not withdrawn from, realize without water burst like this.After the job site drainability meets or exceeds the boring maximum flooding quantity, withdraw from drilling rod or continue and creep into.The chucking drilling rod reduce water yield can: (1) reduces on-the-spot difficulty of construction; (2) improve the site operation environment.Gripping mechanism among the present invention matches with gripping mechanism on the rig, is implemented in the large situation of high pressure, water yield withdrawing from or increase drilling rod safely and fast.
Gripping mechanism is located at discharge opening inflow direction one side and also has other effect except above-mentioned situation: the pressure that (1) reduces water that total system bears, improve the life-span of the present invention; (2) when high pressure, large water burst in the normal drilling construction process, not only reduced water yield but also do not affected in the drilling process rock dust that produces and discharged smoothly (need not close the valve on the discharge opening place flange); (3) the gripping mechanism position is near the boring valve, and behind the chucking drilling rod, stressed length is the shortest, and destructive power is minimum.
Described gripping mechanism circumferentially arranges along blowout prevention supervisor inner chamber, and matches with drilling rod after installing; Described rotating handle passes the blowout prevention supervisor and is threaded with the blowout prevention supervisor.
Described blowout prevention supervisor inwall is provided with groove, and the thickness of gripping mechanism is consistent with the degree of depth of this groove, and the thickness of gripping mechanism is responsible for the thickness of gap more than or equal to drilling rod and blowout prevention, and during normality, gripping mechanism is positioned at this groove.Because the gap between drilling rod and the blowout prevention supervisor is less, therefore the inwall the blowout prevention supervisor arranges groove, will block perpendicular device and be threaded in this groove, can guarantee that when sluicing water passes through smoothly.
Described gripping mechanism comprises the clamping block of two semicirculars in shape, and each clamping block is connected with rotating handle.
Described blowout prevention supervisor by moving part and not moving part form, moving part with is not connected by linkage between the moving part, described moving part and not the moving part partial cross section of being responsible for discharge opening one end in blowout prevention all be circular arc, and moving part and not moving part snap together the formation circle; Wherein two clamping blocks are located at respectively moving part and not on the moving part.Clamping block lays respectively at moving part and not on the moving part, is convenient to installation and the maintenance of gripping mechanism.Safety, the fastness of gripping mechanism are brought up to maximum; Reduced the processing and manufacturing difficulty of this device.
The joint face of described blowout prevention supervisor and rotary body is to be the little taper of outer imperial palace.Effect is (1) good airproof performance (because taper fit, axiality is zero, and the gap is zero); (2) in work progress, be difficult for threading off (taper is engaged in the work progress more and more tightr by screw thread), safe.
Described rotary body is provided with handle.
The present invention also provides the technique that blocks water of this orifice blowout prevention Water blocking system, and step is as follows:
(1) opens the valve that connects on the flange, install the steel pad that blocks water, tighten rotary body, then unclamp gripping mechanism by rotating handle, start rig with rod boring, sluice;
(2) tighten gripping mechanism by rotating handle, gripping mechanism blocks the chucking system of unclamping behind the drilling rod on the rig, the vertical shaft reach on the rig anchor head, then rig gripping mechanism chucking;
(3) the reverse rotation rotating handle unclamps gripping mechanism, then moves behind the rig vertical shaft, drives drilling rod and moves;
(4) repeat above step (2) and (3), the realization drilling rod is withdrawn from or is sent in boring.
Parameters of the present invention can carry out according to drill pipe diameter the adjustment of corresponding proportion, applicable various probings.
The invention has the beneficial effects as follows that this device is easy to operate, cheap, technique is simple, volume is little, compressive property is good, especially blowout prevention and block-water performance are good.
Description of drawings
Fig. 1 a is the moving part front view;
Fig. 1 b is the moving part left view;
Fig. 2 a is moving part right view not;
Fig. 2 b is moving part front view not;
Fig. 3 a is the gripping mechanism sectional drawing;
Fig. 3 b is the steel pad sectional drawing that blocks water;
Fig. 3 c is the steel pad plan view that blocks water;
Fig. 3 d is the rotary body sectional drawing;
Fig. 3 e is the rotary body plan view;
Fig. 4 is the assembling schematic diagram;
Fig. 5 assembles partly to cut open figure;
Fig. 6 is assembling complete section figure.
Wherein 1, flange, 2, rotating handle, 3, gripping mechanism, 4, moving part, 5, rotary body, 6, handle, 7, drilling rod, 8, the steel pad that blocks water, 9, discharge opening, 10, discharge opening place flange, 11, moving part not, 12, the aperture valve.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Shown in Fig. 1-6, a kind of orifice blowout prevention Water blocking system comprises flange 1, rotating handle 2, gripping mechanism 3, moving part 4, rotary body 5, handle 6, drilling rod 7, the steel pad 8 that blocks water, discharge opening place flange 10, kinetoplast 11 not.Wherein, moving part 4 and not moving part 11 all be semicircular arc in the cross section of the part of blowout prevention supervisor discharge opening 9 one ends (right-hand member), and moving part 4 and not moving part 11 snap together and form circularly, jointly form blowout prevention and be responsible for.The part in moving part 11 left sides integral body is not cylindrical shape, and is connected with described flange 1.The left side of moving part 4 and downside are connected and adopt hex boltss by 10 linkage 13(with moving part 11 not) fixing.
Described gripping mechanism 3 comprises the clamping block of two semicirculars in shape, and two clamping blocks are located at respectively moving part 4 and not on the moving part 11.Each clamping block all rotating handle corresponding with it 2 connects.Two clamping blocks with install after drilling rod 7 match, when two clamping blocks chucking drilling rods 7, not only played fixedly drilling rod but also played the effect that blocks water.Described rotating handle 2 passes the blowout prevention supervisor and is threaded with the blowout prevention supervisor.Described blowout prevention supervisor inwall is provided with groove, and the thickness of clamping block is consistent with the degree of depth of this groove, and the thickness of clamping block is responsible for the thickness of gap more than or equal to drilling rod 7 and blowout prevention, and during normality, clamping block is positioned at this groove.
The side of moving part 11 is not provided with discharge opening 9; Flange 1 and not moving part 11 by being welded to connect, after installing, gripping mechanism 3 by linkage 13 moving part 4 is connected with moving part 11 not, after steel pad 8 put into not moving part 11 and moving part 4 associations, the association that rotary body 5 is connected with moving part by buttress thread and moving part 11 not closely was connected.In the work progress after installing, can be large in amount, block water in the water gushing out with high pressure process and continue construction and alternately creep into, carry to bore two cover autonomous systems.
Installation process: the drilling rod 7 on the rig passes rotary body 5, steel pad 8 successively, not behind moving part 11 den bohrkopf einsetzens, put into the orifice tube of mounted valve, by flange 1 moving part 11 not is fixed on the aperture valve 12, respectively gripping mechanism 3 is installed in not on the kinetoplast 11 and moving part 4, by linkage 13 moving part 4 is fixed on not on the moving part 11, then steel pad 7 is put into tapering one end, utilized at last press rods 6 moving part 5 to be fixed on by buttress thread in the association of not moving part 11 and moving part 4 (holding out against the steel pad).Install, rig can begin drilling operation.
In work progress during large, the water gushing out with high pressure of the amount of running into, blocking water by block water steel pad 8 and rotary body 5 guarantees that drilling rod continues to creep into.
In work progress during large, the water gushing out with high pressure of the amount of running into, the gripping mechanism by gripping mechanism 3 and rig cooperatively interacts and back and forth creeps into and carry brill.
A kind of construction technology of orifice blowout prevention Water blocking system, its construction sequence:
(1) opens the valve that connects on the flange 1, install the steel pad 8 that blocks water, tighten rotary body, then unclamp gripping mechanism by rotating handle 2, start rig drilling rod 7 is crept into, sluice;
(2) tighten gripping mechanism by rotating handle 2, gripping mechanism blocks the chucking system of unclamping behind the drilling rod 7 on the rig, the vertical shaft reach on the rig anchor head, then rig gripping mechanism chucking;
(3) reverse rotation rotating handle 2 unclamps gripping mechanism, then moves behind the rig vertical shaft, drives drilling rod 7 and moves;
(4) repeat above step (2) and (3), realization drilling rod 7 is withdrawn from or is sent in boring.
Although above-mentionedly by reference to the accompanying drawings the specific embodiment of the present invention is described; but be not limiting the scope of the invention; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (8)
1. an orifice blowout prevention Water blocking system comprises the blowout prevention supervisor, it is characterized in that an end mounting flange is responsible in blowout prevention, and the inside of the other end is rotary with rotary body, is provided with the steel pad that blocks water between rotary body and the flange, and blowout prevention supervisor side is provided with discharge opening; Described blowout prevention supervisor inflow direction one side inner and that be positioned at discharge opening is provided with gripping mechanism, and this gripping mechanism connects rotating handle.
2. orifice blowout prevention Water blocking system according to claim 1 is characterized in that, described gripping mechanism circumferentially arranges along blowout prevention supervisor inner chamber, and matches with drilling rod after installing; Described rotating handle passes the blowout prevention supervisor and is threaded with the blowout prevention supervisor.
3. orifice blowout prevention Water blocking system according to claim 2, it is characterized in that, described blowout prevention supervisor inwall is provided with groove, the thickness of gripping mechanism is consistent with the degree of depth of this groove, and the thickness of gripping mechanism is more than or equal to the thickness of drilling rod and blowout prevention supervisor gap, during normality, gripping mechanism is positioned at this groove.
4. orifice blowout prevention Water blocking system according to claim 3 is characterized in that, described gripping mechanism comprises the clamping block of two semicirculars in shape, and each clamping block is connected with rotating handle.
5. orifice blowout prevention Water blocking system according to claim 4, it is characterized in that, described blowout prevention supervisor by moving part and not moving part form, moving part be not connected by linkage between the moving part, described moving part and not moving part all be circular arc at the partial cross section of blowout prevention supervisor discharge opening one end, and moving part and not moving part snap together and form circle; Wherein two clamping blocks are located at respectively moving part and not on the moving part.
6. orifice blowout prevention Water blocking system according to claim 1 is characterized in that, the joint face of described blowout prevention supervisor and rotary body is to be the little taper of outer imperial palace.
7. orifice blowout prevention Water blocking system according to claim 1 is characterized in that, described rotary body is provided with handle.
8. the technique that blocks water of each described orifice blowout prevention Water blocking system of claim 1-7, it is characterized in that: step is as follows:
(1) opens the valve that connects on the flange, install the steel pad that blocks water, tighten rotary body, then unclamp gripping mechanism by rotating handle, start rig with rod boring, sluice;
(2) tighten gripping mechanism by rotating handle, gripping mechanism blocks the chucking system of unclamping behind the drilling rod on the rig, the vertical shaft reach on the rig anchor head, then rig gripping mechanism chucking;
(3) the reverse rotation rotating handle unclamps gripping mechanism, then moves behind the rig vertical shaft, drives drilling rod and moves;
(4) repeat above step (2) and (3), the realization drilling rod is withdrawn from or is sent in boring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210507079.8A CN102979475B (en) | 2012-11-30 | 2012-11-30 | A kind of orifice blowout prevention Water blocking system and the technique that blocks water thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210507079.8A CN102979475B (en) | 2012-11-30 | 2012-11-30 | A kind of orifice blowout prevention Water blocking system and the technique that blocks water thereof |
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| Publication Number | Publication Date |
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| CN102979475A true CN102979475A (en) | 2013-03-20 |
| CN102979475B CN102979475B (en) | 2016-06-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670322A (en) * | 2013-12-19 | 2014-03-26 | 山东华宁矿业集团有限公司 | Gate valve tubular blowout preventer |
| CN105781469A (en) * | 2016-03-30 | 2016-07-20 | 天津大港油田石油工程研究院钻采技术开发公司 | Gravity self-sealed blowout rescue device |
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| US20060213654A1 (en) * | 2005-03-23 | 2006-09-28 | Scallen Richard E | Novel wellhead valves |
| CN2900769Y (en) * | 2006-06-16 | 2007-05-16 | 河南省正龙煤业有限公司城郊煤矿 | Anti-blowount valve for mine downhole drilling hole |
| CN201221332Y (en) * | 2008-06-30 | 2009-04-15 | 永煤集团股份有限公司新桥煤矿 | Controllable orifice blowout prevention back-pressure apparatus |
| CN201635693U (en) * | 2010-03-31 | 2010-11-17 | 罗保平 | Water detection and release drilling diversion gate valve type orifice device |
| CN202970599U (en) * | 2012-11-30 | 2013-06-05 | 山东大学 | Orifice blowout control water stop system |
-
2012
- 2012-11-30 CN CN201210507079.8A patent/CN102979475B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060213654A1 (en) * | 2005-03-23 | 2006-09-28 | Scallen Richard E | Novel wellhead valves |
| CN2900769Y (en) * | 2006-06-16 | 2007-05-16 | 河南省正龙煤业有限公司城郊煤矿 | Anti-blowount valve for mine downhole drilling hole |
| CN201221332Y (en) * | 2008-06-30 | 2009-04-15 | 永煤集团股份有限公司新桥煤矿 | Controllable orifice blowout prevention back-pressure apparatus |
| CN201635693U (en) * | 2010-03-31 | 2010-11-17 | 罗保平 | Water detection and release drilling diversion gate valve type orifice device |
| CN202970599U (en) * | 2012-11-30 | 2013-06-05 | 山东大学 | Orifice blowout control water stop system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670322A (en) * | 2013-12-19 | 2014-03-26 | 山东华宁矿业集团有限公司 | Gate valve tubular blowout preventer |
| CN105781469A (en) * | 2016-03-30 | 2016-07-20 | 天津大港油田石油工程研究院钻采技术开发公司 | Gravity self-sealed blowout rescue device |
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| CN102979475B (en) | 2016-06-01 |
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