Multi-functional four-way
Technical field
The utility model relates to a kind of four-way, particularly a kind of multi-functional four-way that is used for drilling well, formation testing and oil recovery.
Background technology
In traditional drilling well, formation testing, completion practice transfer process, because the main channel of drilling spool is a put-through channel, do not have the function that seat is hung other implements, wellhead equipment, completion interval of well jaws equipment when therefore different operation process needs the different drilling spool of function, formation testing, like this in mutual operation transfer process, with regard to the four-way that needs different implement of repeatedly dismounting and replacing and implement to be complementary.For example, when drilling well arrives certain depth, in the time of need testing the related data of oil reservoir, because drilling spool does not have the function that seat is hung relevant monitoring instrument, therefore drilling rod must be taken out from well, changing the outfit is the four-way and the equipment of test usefulness, and only drilling rod being taken out this work just needs cost several days even many time in a week, and operating efficiency is extremely low, the more important thing is during equipment changes the outfit, well head is in opening-wide state, and overflow and gas blowout accident take place easily, so operation danger is higher.After and for example finishing drilling well work, need carry out formation testing, need withdraw from drilling equipment this moment, change the outfit into formation testing equipment, also need formation testing equipment is changed the outfit into the completion interval of well jaws equipment after formation testing finishes, changing the outfit each time all needs the different four-way that changes the outfit, the expensive time, and all need after changing the outfit the equipment after changing the outfit is carried out pressure testing, can not leak with assurance equipment. at every turnAbove-mentioned traditional method complex procedures, change the outfit all needs to drop into a large amount of man power and materials at every turn, the more important thing is during equipment changes the outfit, well head is in opening-wide state all the time, operating risk is very high, especially for the special oil well of some geological conditionss, accidents such as easier generation overflow, blowout, so operating efficiency is extremely low and the dangerous height of operation.In addition, in the shaft mouth operation process, all need four-way body and the equipment that is connected on the four-way are carried out leak detection, at this moment just need in the four-way body, put into the pressure testing plug, pour water then and test, traditional leak-testing, generally the pressure testing plug is placed on the side outlet of four-way body between the four-way body top, this structure can only test out the above equipment of four-way base side outlet and whether have leakage, can't test the side outlet place and whether have leakage, in case therefore side outlet leaks, but can't detect the big hidden danger of one in the shaft mouth operation process that become.
Summary of the invention
The purpose of this utility model just provides a kind of multi-functional four-way, when using this multi-functional four-way to carry out different work, do not need to change four-way, only need more to hang different implement hangers and promptly can finish drilling well, formation testing and well completion work, easy and simple to handle, save trouble and labor according to different work seat in four-way of the present utility model.
The purpose of this utility model is to realize by such technical scheme, it comprises the four-way body that has main channel and two side outlets, the inwall of main channel is provided with the load-bearing step, be equipped with hanger or wearing bush on this load-bearing step, be equipped with retaining mechanism between four-way body and hanger or the wearing bush, be provided with sealing mechanism between four-way body and the hanger.
Load-bearing ring platform of the present utility model can be spacing in the four-way body with various hangers and wearing bush, prevent that hanger and wearing bush from coming off, retaining mechanism is with hanger or wearing bush locking, hanger or wearing bush are fixed in the four-way body, hermetically-sealed construction between four-way body and the hanger is realized sealing, prevents to leak.During drilling well, be lowered to wearing bush in the four-way body, with retaining mechanism wearing bush locked, connect drilling equipment, the utility model just can carry out drilling well as drilling spool, and wearing bush can prevent that sealing surface in the four-way body is by the drilling well device damage; Drilling process need be when data be tested in the well, need not to withdraw from drilling rod and change testing equipment, only need wearing bush is taken out, lock with retaining mechanism after in the four-way body, putting into the drilling rod hanger, after again drilling rod and drilling rod hanger being connected, just can utilize the drilling pipe hanger that the various data in the well are tested; After boring completion, when needing formation testing, take out the drilling rod hanger, put into boll-weevil hanger, connect formation testing tubing string and oil pipe and hang, and seat hang over this uses novel in, lock with retaining mechanism, the utility model just can be used as formation testing equipment and carries out formation testing and completion; When needing to produce, connect flow string and boll-weevil hanger, need not change well head and just can produce; Therefore the utlity model has the function of drilling spool, formation testing equipment and completion equipment and production equipment.
Owing to adopted technique scheme, the utlity model has following advantage: multiple functional, structure optimization, easy and simple to handle, sealing is reliable, and is easy to use, greatly reduces human and material resources and operation conversion time in the drilling process, it is time saving and energy saving to save trouble, and the more important thing is the safety that has improved shaft mouth operation.
Description of drawings
Description of drawings of the present utility model is as follows:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of first embodiment of Fig. 1;
Fig. 3 is the structural representation of second embodiment among Fig. 1;
Fig. 4 is the vertical view of Fig. 1;
Fig. 5 is the structural representation of Fig. 1 jackscrew assembly;
Fig. 6 is the structural representation of another embodiment of jackscrew assembly;
Fig. 7 is the structural representation of the hermetically-sealed construction between hanger and the four-way body;
Fig. 8 is the structural representation of the 3rd embodiment among Fig. 1;
Fig. 9 is the structural representation of the 4th embodiment among Fig. 1;
Figure 10 is that the E of the threeway among Fig. 9 is to schematic diagram;
Among the figure: 1. four-way body; 2. main channel; 3. side outlet; 4. load-bearing step; 5. hanger; 6. wearing bush; 7. retaining mechanism; 8. sealing mechanism; 9. pressure testing plug limited step; 10. pressure testing plug; 11. jackscrew assembly; 12. locking slot; 13. jackscrew bar; 14. jackscrew head; 15. circlip for shaft; 16. jackscrew rod seal circle; 17. sealing ring mounting cap; 18. jackscrew head sealing ring; 19. shape metallic leak-proof structure; 20. metal o-ring; 21. upper seal support; 22. bottom sealing socket; 23. taper annular groove 24. annular boss; 25. threeway; 26. first outlet; 27. the first manual flap type; 28. second outlet; 29. the second manual flap type; 30. the 3rd outlet; 31. detecting instrument interface; 32. the first screw thread flange; 33. the 3rd manual flap type; 34. the 4th manual flap type; 35. the second screw thread flange; The flap type 36. surge; 37. conversion pipe nipple; 38. limiting stand; 39. rubber seal.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As depicted in figs. 1 and 2, the utility model comprises the four-way body 1 that has main channel 2 and two side outlets 3, it is characterized in that: the inwall of main channel 2 is provided with load-bearing step 4, be equipped with hanger 5 or wearing bush 6 on this load-bearing step 4, be equipped with retaining mechanism 7 between four-way body 1 and hanger or the wearing bush, be provided with sealing mechanism 8 between four-way body and the hanger.Can in the four-way body, assemble the lengthening wearing bush during drilling well; the length of the wearing bush of lengthening is corresponding with the four-way body length; damage the sealing surface of main channel inwall in the time that drilling well not only can being prevented; can also play protection to four-way body bottom; the wearing bush that can extend in addition is provided with the locking slot widened and the scotch of intensification; can make the tighter of jackscrew top like this, the abrasionproof effect is more obvious.When wearing bush or hanger are installed, earlier the jackscrew assembly is returned in the top wire hole fully, make wearing bush be seated in four-way body Inner chamber slowly, stably, and then locking wearing bush or hanger.
On the inwall of main channel 2 of the present utility model as shown in Figure 3, also be provided with pressure testing plug limited step 9 between the bottom of the side outlet of four-way body and four-way body, pressure testing plug 10 is assemblied on this limited step.The rigging position of pressure testing plug is arranged between the bottom of side outlet and four-way body, when pouring water test, not only can tests four-way body top and whether have the leakage situation of leaking but also can test the side outlet position of four-way body.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 8 and shown in Figure 9, retaining mechanism 7 of the present utility model is assemblied in the jackscrew assembly 11 on the four-way body and is arranged on that locking slot 12 constitutes on hanger 5 or the wearing bush 6 by some.
Comprise jackscrew bar 13 and jackscrew head 14 as Fig. 5 and Fig. 6 jackscrew assembly 11 of the present utility model, sealing ring 16 and sealing ring assembled cap 17 are assemblied in the middle part of jackscrew bar versatilely, jackscrew bar 13 passes four-way body 1 and locks with the locking slot that is arranged on hanger or the wearing bush, sealing ring assembled cap 17 becomes to be threaded with the four-way body, jackscrew bar and four-way body are threaded, and circlip for shaft 15 is transferred on jackscrew bar afterbody.Sealing ring assembled cap and four-way body are threaded, jackscrew be fixed on the four-way body,
As shown in Figure 6, also be provided with sealing ring 18 on the jackscrew head 14 of the present utility model.Jackscrew head 14 can also be set to detachable structure, the jackscrew assembly is installed in the top wire hole of four-way body upper flange, the jackscrew head of bascule is adopted in jackscrew assembly front, well liquid mud flowed into the jackscrew screw thread when sealing ring that increases on the jackscrew head can stop drilling well, prevent that mud is set in the jackscrew screw thread, prolonged the application life of jackscrew assembly.During drilling well, the jackscrew head that the jackscrew bar promotes, the locking wearing bush prevents that wearing bush from rotating, and plays good abrasionproof effect, the jackscrew assembly is used for locking boll-weevil hanger during formation testing and during completion, prevents the rotation of hanger.
Jackscrew head 14 and jackscrew bar 13 are for being wholely set or jackscrew head 14 and jackscrew bar 13 are threaded.
As shown in Figure 7, sealing mechanism 8 comprises rubber seal 39 and shape metallic leak-proof structure 19.
As shown in Figure 7, shape metallic leak-proof structure 19 of the present utility model is arranged on the limiting stand 38 of hanger, it comprises the metal o-ring 20 that is arranged on the hanger, be assemblied in the upper seal support 21 of metal o-ring upper end and be assemblied in the bottom sealing socket 22 of metal o-ring lower end, the upper surface of metal o-ring 20 and lower surface are respectively equipped with the cross section that is indent and are trapezoidal annular groove 23, also are respectively equipped with on upper seal support 21 and the bottom sealing socket 22 and trapezoidal annular groove 23 corresponding annular boss 24.The shape metallic leak-proof structure of hanger of the present utility model is assemblied on the load-bearing step 4, bottom sealing socket 22 is positioned on the load-bearing step 4, in the operation process, the hanger bottom is equipped with implements such as oil pipe or drilling rod, under action of gravity, the annular boss of upper seal support 21 is along the downward extrusion metal sealing ring of taper annular groove, bottom sealing socket under the effect of support force along the conical ring groove extrusion metal sealing ring that makes progress, push to both sides at the following metal o-ring of the effect of these two power, inwardly extruding is fitted with the intimate of hanger, outwards extruding fits tightly with the inwall of main channel 2, has realized the sealing between hanger and the four-way body.
As Fig. 8 and shown in Figure 9, be equipped with the threeway 25 of band level detection instrument interface 31 on the side outlet 3 of four-way body 1 of the present utility model, first outlet 26 of threeway 25 is connected with the side outlet 3 of four-way body 1 by the first manual flap type 27, second outlet 28 is connected with the first screw thread flange 32 and the 3rd manual flap type 33, the three flap types 33 that are connected with band pressure meter and stop valve in the second manual flap type 29, the 3rd outlet 30 in turn and is provided with liquid level monitoring tool interface system 31.Needs to well in liquid level when monitoring, can be on liquid level monitoring tool interface system 31 the relevant detecting instrument of fit on, the important parameter of drilling well or manufacturing process is implemented monitoring, the safety that further improves shaft mouth operation.
As Fig. 8 and shown in Figure 9, the utility model can also connect the 4th manual flap type 34, the second screw thread flange 35 successively on another side outlet of four-way body 1, flap type 36 and adjustment pipe nipple 37 surge.Adjust pipe nipple and can adjust the length or the height of implement, make things convenient for execute-in-place according to the operation situation at scene.This second screw thread flange contains stop valve and shockproof pressure meter, and manually flap type is realized the switching of this path, and the pressure meter on the instrument flange is observed the pressure condition in the passage at any time, and the flap type that surges can realize that Long-distance Control closes, and guarantees handling safety.
Operation conversion program of the present utility model: in drilling process, when needs are tested, utilize drilling well tubing string in the well, connect drilling well tubing string and drilling well hanger, and seat is suspended in the multi-functional four-way body, can test as test string; After boring completion, connect flow string and boll-weevil hanger, and seat is suspended in the multi-functional four-way body, and locks boll-weevil hanger, can produce with the jackscrew assembly.Liquid level is realized program in the testing well: in multi-functional four-way one side design special threeway is arranged, special threeway is provided with single-minded interface, connect a manual flap type and screw thread flange, the screw thread flange can connect the drilling well instrumentation, important parameter to drilling process is implemented monitoring, according to mode of occupation, manually flap type can be realized the switching of this passage, guarantees that drilling process has greater security.Adjust pipe nipple and realize program: connect one in the exit position of the opposite side of four-way body and adjust pipe nipple, according to the situation at scene, the mode of occupation of pipe nipple is adjusted in the selection of hommization, convenient on-the-spot flexible operating.The jackscrew assembly is realized program: the jackscrew assembly is installed in the top wire hole of four-way body upper flange, the jackscrew head that bascule is adopted in jackscrew assembly front is equipped with sealing ring on the jackscrew head, and movable jackscrew head relies on its sealing ring to stop well liquid to enter the jackscrew screw thread, during drilling well, by the jackscrew head of jackscrew bar promotion activity, the locking wearing bush prevents that wearing bush from rotating, play good abrasionproof effect, same operation can be used for locking boll-weevil hanger during the jackscrew completion, prevent the rotation of hanger.Wearing bush is realized program: in the drilling process, allows the jackscrew head return to fully in the top wire hole, makes wearing bush be seated in four-way body Inner chamber slowly, stably, and by the jackscrew head of jackscrew bar promotion activity, the locking wearing bush.
The utlity model has multiple functional, structure optimization, easy and simple to handle, sealing is reliable, easy to use, the advantages such as human oriented design greatly reduce human and material resources and operation changing time in the drilling process, can realize good economic benefits. The human oriented design of device is more suitable for Human Engineering Principle.