CN102808593A - Cement head device with large inner diameter and in direct-buckle quick connection - Google Patents
Cement head device with large inner diameter and in direct-buckle quick connection Download PDFInfo
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- CN102808593A CN102808593A CN2012103001825A CN201210300182A CN102808593A CN 102808593 A CN102808593 A CN 102808593A CN 2012103001825 A CN2012103001825 A CN 2012103001825A CN 201210300182 A CN201210300182 A CN 201210300182A CN 102808593 A CN102808593 A CN 102808593A
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- cementing
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- cementing head
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Abstract
The invention discloses a cement head device with a large inner diameter and in direct-buckle quick connection, which is applied to the field of designing and manufacturing a well cementing tool. The cement head device is formed by a quick-change upper cover, an upper fastening block, an upper fastening bolt, a cement head body, a well cementing rubber plug, a lower fastening block, a lower fastening bolt, a quick-change connector and a balancing device, wherein the well cementing rubber plug can be placed in the cement head body, the quick-change upper cover is placed on the cement head body, the upper fastening block can be placed in a groove corresponding to the cement head body and can be bunched with the upper fastening bolt, the cement head body can be placed on the quick-change connector, the lower fastening block can be placed in a groove corresponding to the quick-change connector and can be bunched with the lower fastening bolt, the direct-buckle connection is adopted between the cement head body and the quick-change upper cover as well as the quick-change connector, and the balancing device is connected with the side surface of the cement head body. The cement head device disclosed by the invention has the advantages that the design is novel, the problem that a rubber plug is difficult to place is solved, the performance of the rubber plug can be quickly released by a cement head, the quick connection between the cement head and the quick-change upper cover as well as the quick-change connector can be realized, the working efficiency is increased, the operation time is saved, and the labor intensity is reduced.
Description
Technical field
The present invention relates to cementing tool and manufacture and design a kind of cementing-head device that is used for filled with water mud in the field with large diameter, the quick connection of straight button.
Background technology
Well cementation be exactly utilize cementing equipment in being lowered to the oil gas well of sleeve pipe to casing annulus filling cement, make and produce effective sealing between sleeve pipe and the stratum.Between the sleeve pipe and the borehole wall, form a complete cement sheath after the cementing operation, form good gluing between sleeve pipe and cement, cement and the borehole wall, guarantee oil, gas, water layer obstructed scurrying mutually, reach effective packing.The success or failure of well cementation, whether the drilling investment in early stage that not only is related to a bite well cancels, and the quality of cementing quality also can make a big impact to the later stage exploitation of oil well.The filling of cement paste is transported in down-hole casing and the borehole wall annular space through cementing-head device after pressurizeing cement paste through cementing truck.If cementing head breaks down causing untimely, the discontinuous or overtime inefficacy of cement paste perfusion, serious meeting causes cave-in even causes well casing to irritate wax, and the oil well that the millions of units of consumption even up to ten million first huge fund are got out is destroyed.
There is following problem in the cementing head that uses now: be connected inconvenience between (1) cementing head body and quick change gland and the sleeve pipe.What the connection between them was generally adopted at present is API circle button screw thread; Because it is uneven that the cementing head body is heavy, deadweight distributes; Be easy to cause between the API screw thread when cementing head is installed and disorderly detain; Not only can cause the connection procedure cost long time of cementing head and quick change gland and sleeve pipe, also take place easily to cause enormous economic loss owing to random button causes cementing head to be scrapped.(2) throw in plug with cementing head has some setbacks at present.Force plug to fall because the plug cavity volume major part of ordinary Portland cement head, will strengthen strength all less than the plug diameter when throwing in plug, increased the labour intensity the when workman throws in plug, wasted dentist's operating time, stay hidden danger to cementing quality.
Its internal diameter of the cementing head of same nominal size generally is less than its nominal size, and the cementing plug of same nominal size is greater than its cementing head internal diameter, so just makes dropping process when the throwing in cementing plug gas of requiring great effort very much.The constructor will impact plug continuously with hammer usually and just can put in.How in the open air particularly well cementing operation operation receives the influence of climatic environment, throws in plug labor strength will obviously be increased.The ordinary Portland cement head is because the cementing head body is comparatively heavy; Own wt is uneven; (side has the balance pipe device) because cementing head is laid particular stress on the unbalanced off-centre that is easy to generate, is easy to cause disorderly button phenomenon of API cross threading in installation process, cementing head is damaged and scrap.The general now cementing head that uses all is being to adopt the API round thread to be connected with the quick change gland on top and the hydraulic quick coupler of bottom; The workman will rotate a lot of circles during construction; In order to guarantee that pressure is also tighter with the boosting-rod pressurization at last; Promptly waste the time, increased labour intensity again, brought potential safety hazard for the site operation personnel.
In recent years, along with the more and more strictness that oil exploitation requires cementing technology, also increasingly high to the performance requirement of cementing tool.Cementing head not only will possess and is injected into the ability between the annular space of the sleeve pipe and the borehole wall to the cement paste safety of extremely high pressure, also will have fast, safety, labour-saving effect.How under the prerequisite of safety; Research and development produce the cementing head that filled with water mud speed is more and more faster, operation is more and more laborsaving, safety is become better and better, and develop therefore that a kind of to have the cementing-head device that large diameter, straight button connect fast be the new problem that the cementing tool manufacturing is badly in need of solution.
Summary of the invention
The purpose of this invention is to provide a kind of through being designed to the cementing head body all adopt the measure of straight buckle greater than plug internal diameter, body and top quick change gland and bottom hydraulic quick coupler; Effectively solved an above-mentioned difficult problem, for cementing operation provides a kind of a kind of cementing-head device with large diameter, the quick connection of straight button that plug falling speed, connection fast make things convenient for, alleviate labor strength, lifting safety factor rapidly that has.
The objective of the invention is to realize like this: a kind of have a cementing-head device that large diameter, straight button connect fast; By the quick change loam cake, go up latch segment, go up lock bolt, cementing head body, cementing plug, down latch segment, lock bolt, hydraulic quick coupler, bascule are formed down; Cementing plug is put into the cementing head body; The quick change loam cake is placed on the cementing head body; To go up latch segment and put into cementing head body corresponding groove and seal in lock bolt, the cementing head body is placed on the hydraulic quick coupler, the groove of putting into latch segment down corresponding hydraulic quick coupler seals in down lock bolt; Adopt straight buckle at cementing head body and quick change loam cake and hydraulic quick coupler, bascule is connected with cementing head body side; Its operating principle is; When opening the quick change loam cake and knocking down the cementing head inner chamber to cementing plug; Because the cementing head internal diameter is greater than the cementing plug external diameter, cementing plug can easily fall, and through bascule the pressure that produces in the cementing plug dropping process in time is back to the cementing head upper part of body; Make the cementing head internal pressure reach balance, cementing plug is able to smooth whereabouts; When the quick change loam cake is connected with the cementing head body, owing to adopt straight buckle, as long as aimed at the position on the cementing head body 4 to the quick change loam cake; Rely on the deadweight of quick change loam cake, drop to assigned address naturally, rotate 120 degree angles gently; Just realized connection; Straight buckle mode has also been adopted with being connected of hydraulic quick coupler in same cementing head bottom, so the workman will save for 2/3rds time than original employing API thread connecting mode in operating process, has also alleviated a large amount of muscle power simultaneously.
Main points of the present invention are its structure and operating principle.Its operating principle is, when opening the quick change loam cake and knocking down the cementing head inner chamber to cementing plug, because the cementing head internal diameter is greater than the plug external diameter, plug can easily fall; When the quick change loam cake is connected with the cementing head body, owing to adopt straight buckle, as long as aimed at the position on the cementing head body to the quick change loam cake; Rely on the deadweight of quick change loam cake, drop to assigned address naturally, rotate 120 degree angles gently; Just realized connection; Straight buckle mode has also been adopted with being connected of hydraulic quick coupler in same cementing head bottom, so the workman will save for 2/3rds time than original employing API thread connecting mode in operating process, has also alleviated a large amount of muscle power simultaneously; When opening the quick change gland and knocking down the cementing head inner chamber to cementing plug; Because cementing head body internal diameter is greater than the cementing plug external diameter; Cementing plug can easily fall; Through bascule the pressure that produces in the cementing plug dropping process in time is back to the cementing head upper part of body, makes the cementing head internal pressure reach balance, cementing plug is able to smooth whereabouts.
A kind of have large diameter, the quick cementing-head device that connects of straight button compared with prior art; Have novelly, solved extremely cleverly and thrown in the plug difficulty for a long time, make cementing head possess the performance that can discharge plug fast; Realize the quick concatenation ability of cementing head and quick change loam cake and hydraulic quick coupler; Possess and increase work efficiency, save the operating time, reduce the function of labour intensity., so the workman will save for 2/3rds time than original employing API thread connecting mode in operating process, also alleviated a large amount of muscle power simultaneously.It is big to have solved the random button of cementing head ease of connection, thread alternating and labour intensity, the problem that production efficiency is low.Make advantages such as the connection of cementing head is light, safe, quick, will be widely used in cementing tool and manufacture and design in the field.
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a straight button part-structure enlarged drawing of the present invention.
Fig. 3 is the left view of Fig. 2.
The specific embodiment
With reference to accompanying drawing; A kind of cementing-head device with large diameter, the quick connection of straight button; By quick change loam cake 1, go up latch segment 2, go up lock bolt 3, cementing head body 4, cementing plug 5, down latch segment 6, lock bolt 7, hydraulic quick coupler 8, bascule 9 are formed down; Cementing plug 5 is put into cementing head body 4, quick change loam cake 1 is placed on the cementing head body 4, will go up latch segment 2 and put into cementing head body 4 corresponding groove and seal in lock bolt 3; Cementing head body 4 is placed on the hydraulic quick coupler 8; The groove of putting into following latch segment 6 corresponding hydraulic quick coupler 8 seals in down lock bolt 7, and in cementing head body 4 and quick change loam cake 1 and the straight buckle of hydraulic quick coupler 8 employings, bascule 9 is connected with cementing head body 4 sides.Its operating principle is; When opening quick change loam cake 1 and knocking down the cementing head inner chamber to cementing plug 5; Because the cementing head internal diameter is greater than cementing plug 5 external diameters, cementing plug 5 can easily fall, and through bascule the pressure that produces in the cementing plug dropping process in time is back to the cementing head upper part of body; Make the cementing head internal pressure reach balance, cementing plug is able to smooth whereabouts; When quick change loam cake 1 is connected with cementing head body 4, owing to adopt straight buckle, as long as aimed at the position on the cementing head body 4 to quick change loam cake 1; Rely on the deadweight of quick change loam cake 1, drop to assigned address naturally, rotate 120 degree angles gently; Just realized connection; Straight buckle mode has also been adopted with being connected of hydraulic quick coupler 8 in same cementing head bottom, so the workman will save for 2/3rds time than original employing API thread connecting mode in operating process, has also alleviated a large amount of muscle power simultaneously.
Below in conjunction with embodiment the present invention is made further specific descriptions:
1. adopted a kind of cementing head body with imperial palace warp.Generally be less than the diameter of cementing plug at present at the cementing head body internal diameter of usefulness.Can from " People's Republic of China's oil and gas industry standard SY ∕ T5394-2004 cementing concrete head and conventional plug " standard, contrast and find out, see the following form:
Table 1.1 SY ∕ T5394-2004 cementing concrete leader is accurate
| Nominal size M | Operating pressure | The cementing head internal diameter |
| 101 | 35; 50 | 88-90 |
| 114 | 35; 50 | 97-103 |
| 127 | 35; 50 | 108-116 |
| 140 | 35; 50 | 119-126 |
| 178 | 21; 35 | 155-162 |
| 194 | 21; 35 | 168-177 |
| 219 | 21; 35 | 194-201 |
Can find out that from table 1.1 the cementing head internal diameter of stipulating in the standard is littler than its corresponding cementing head nominal size, and supporting with it cementing plug maximum outside diameter and lip external diameter all are greater than the cementing head internal diameter in the table.See in " People's Republic of China's oil and gas industry standard SY ∕ T5394-2004 cementing concrete head and conventional plug " standard and can find out:
The size and the major parameter of table 1.2 conventional cementing plug
| Nominal size | The plug maximum outside diameter | Plug lip diameter | The cementing head internal diameter |
| 101 | 101 | 94-97 | 88-90 |
| 114 | 114 | 108-110 | 97-103 |
| 127 | 127 | 120-123 | 108-116 |
| 140 | 140 | 130-135 | 119-126 |
| 178 | 178 | 168-173 | 155-162 |
| 194 | 194 | 182-189 | 168-177 |
| 219 | 219 | 210-214 | 194-201 |
We can be clearly seen that through above contrast, and its internal diameter of the cementing head of same nominal size generally is less than its nominal size, and the cementing plug of same nominal size is greater than its cementing head internal diameter.The cementing head of 101 millimeters of nominal size for example, its actual inner diameter 88-90 millimeter, the plug external diameter that uses is the 94-97 millimeter, its plug external diameter is obviously greater than the cementing head internal diameter.So just make dropping process when the throwing in cementing plug gas of requiring great effort very much.The constructor will impact plug continuously with hammer usually and just can put in.How in the open air particularly well cementing operation operation receives the influence of climatic environment, throws in plug labor strength will obviously be increased.
Cementing head body 4 with the quick change gland 1 and being connected of bottom hydraulic quick coupler 8 on top have all adopted straight buckle mode, improved connection speed greatly, reduced labor strength, guaranteed production safety.
The ordinary Portland cement head is because cementing head body 4 is comparatively heavy; Own wt is uneven; (side has the balance pipe device) because cementing head body 4 is laid particular stress on the unbalanced off-centre that is easy to generate, is easy to cause disorderly button phenomenon of API cross threading in installation process, cementing head is damaged and scrap.Adopt the mode of straight buckle to solve the problems referred to above.When cementing head is installed, be connected hydraulic quick coupler 8 earlier with tubing and casing, because hydraulic quick coupler 8 weight are even, so can not produce off-centre, it is very convenient to couple together.Again cementing head body 4 is seated in the straight button of hydraulic quick coupler 8; Put into following latch segment 6 groove of hydraulic quick coupler 8; Lock bolt 7 passes down latch segment 6 and has just realized that cementing head body 4 is connected with the straight button of hydraulic quick coupler 8 fast under using, and just can put into production at once.
Well behaved cementing head at first requires to possess sufficiently high intensity; The ability that possesses quick release plug; Possesses conveniently mode of operation.Whether smooth plug fall is a wherein important factor.The main cause that influences plug release falling speed depends on the condition that plug falls that discharges that stops.Now used cementing head internal diameter is less than the plug external diameter, and making plug lay wastes time and energy very much.Can effectively address this problem after adopting increasing cementing head internal diameter.Adopted novel straight buckle mode at cementing head loam cake 1 and cementing head body 4 and cementing head body 4 respectively with hydraulic quick coupler 8 junctions, made this two parts connection speed obtain promoting energetically.We are through storming strongholds in defiance of difficulties for many years, in the advantage that has absorbed how tame cementing head both at home and abroad and after having listened to cementing technology personnel and operator's suggestion, on the basis of repetition test, have accomplished this cementing head that integrates multinomial premium properties and have designed.New cementing head has adopted brand-new design discharging on plug and the mode that is connected gland and hydraulic quick coupler; The performance that cementing head has been reached to discharge fast plug, Rapid Realization to connect; Improve operating efficiency, saved the operating time, reduced labour intensity.Therefore this invention has novel, convenient and swift, safe and reliable advantage, and new leap has been arranged in advance, practicality, safety.
Cementing head body 4 cavity volume internal diameters are greater than the external diameter of cementing plug 5, and are provided with external balance pipe 9, can fully guarantee cementing head body 4 pressure inside balances, make that to lay cementing plug 5 easier; Cementing head body 4 all adopts straight buckle with the fast-assembling loam cake 1 on top and the hydraulic quick coupler 8 of bottom, and it is faster, more laborsaving, safer that cementing head body and other annex are installed.
Claims (2)
1. one kind has large diameter, the straight button cementing-head device of connection fast; By the quick change loam cake, go up latch segment, go up lock bolt, cementing head body, cementing plug, down latch segment, lock bolt, hydraulic quick coupler, bascule are formed down; It is characterized in that: cementing plug is put into the cementing head body; The quick change loam cake is placed on the cementing head body; To go up latch segment and put into cementing head body corresponding groove and seal in lock bolt, the cementing head body is placed on the hydraulic quick coupler, the groove of putting into latch segment down corresponding hydraulic quick coupler seals in down lock bolt; Adopt straight buckle at cementing head body and quick change loam cake and hydraulic quick coupler, bascule is connected with cementing head body side.
2. a kind of large diameter, straight button cementing-head device of connection fast that has according to claim 1; It is characterized in that: its operating principle is, when opening the quick change loam cake and knocking down the cementing head inner chamber to cementing plug, because the cementing head internal diameter is greater than the cementing plug external diameter; Cementing plug can easily fall; Through bascule the pressure that produces in the cementing plug dropping process in time is back to the cementing head upper part of body, makes the cementing head internal pressure reach balance, cementing plug is able to smooth whereabouts; When the quick change loam cake is connected with the cementing head body, owing to adopt straight buckle, as long as aimed at the position on the cementing head body 4 to the quick change loam cake; Rely on the deadweight of quick change loam cake, drop to assigned address naturally, rotate 120 degree angles gently; Just realized connection; Straight buckle mode has also been adopted with being connected of hydraulic quick coupler in same cementing head bottom, so the workman will save for 2/3rds time than original employing API thread connecting mode in operating process, has also alleviated a large amount of muscle power simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103001825A CN102808593A (en) | 2012-08-22 | 2012-08-22 | Cement head device with large inner diameter and in direct-buckle quick connection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103001825A CN102808593A (en) | 2012-08-22 | 2012-08-22 | Cement head device with large inner diameter and in direct-buckle quick connection |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352673A (en) * | 2013-07-30 | 2013-10-16 | 中国海洋石油总公司 | Monocular twin-well surface layer well cementation technology |
| RU2817941C1 (en) * | 2023-11-02 | 2024-04-23 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Device for filling annular space of well with grouting mortar |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4246967A (en) * | 1979-07-26 | 1981-01-27 | The Dow Chemical Company | Cementing head apparatus and method of operation |
| CN201121502Y (en) * | 2007-12-03 | 2008-09-24 | 大港油田集团有限责任公司 | Fast loading shaft mouth device for non-drilling rig well cementing |
| CN201121491Y (en) * | 2007-11-12 | 2008-09-24 | 辽河石油勘探局 | Bumper pin lever for fast connecting with cementing head |
| CN201610732U (en) * | 2010-02-05 | 2010-10-20 | 王显诚 | Integrated cyclone large-chamber bypass valve pipe assembling type cement head |
| CN202832353U (en) * | 2012-08-22 | 2013-03-27 | 沈阳白云机械有限公司 | Straight-buckle fast connection cement head device with large inner diameter |
-
2012
- 2012-08-22 CN CN2012103001825A patent/CN102808593A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4246967A (en) * | 1979-07-26 | 1981-01-27 | The Dow Chemical Company | Cementing head apparatus and method of operation |
| CN201121491Y (en) * | 2007-11-12 | 2008-09-24 | 辽河石油勘探局 | Bumper pin lever for fast connecting with cementing head |
| CN201121502Y (en) * | 2007-12-03 | 2008-09-24 | 大港油田集团有限责任公司 | Fast loading shaft mouth device for non-drilling rig well cementing |
| CN201610732U (en) * | 2010-02-05 | 2010-10-20 | 王显诚 | Integrated cyclone large-chamber bypass valve pipe assembling type cement head |
| CN202832353U (en) * | 2012-08-22 | 2013-03-27 | 沈阳白云机械有限公司 | Straight-buckle fast connection cement head device with large inner diameter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352673A (en) * | 2013-07-30 | 2013-10-16 | 中国海洋石油总公司 | Monocular twin-well surface layer well cementation technology |
| CN103352673B (en) * | 2013-07-30 | 2016-03-02 | 中国海洋石油总公司 | Monocular twin-well surface layer well cementation technology |
| RU2817941C1 (en) * | 2023-11-02 | 2024-04-23 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Device for filling annular space of well with grouting mortar |
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Application publication date: 20121205 |