CN204326983U - Tubing string string - Google Patents
Tubing string string Download PDFInfo
- Publication number
- CN204326983U CN204326983U CN201420488615.9U CN201420488615U CN204326983U CN 204326983 U CN204326983 U CN 204326983U CN 201420488615 U CN201420488615 U CN 201420488615U CN 204326983 U CN204326983 U CN 204326983U
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- Prior art keywords
- string
- bridging plug
- pole
- tubing
- coiled tubing
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- Expired - Fee Related
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Abstract
The utility model embodiment discloses a kind of tubing string string, at least comprises that the coiled tubing connector, the machinery that are in series are given up, centralizer, collar locator, abrasive perforating sliding sleeve, hydraulic setting tool and bridging plug; Described abrasive perforating sliding sleeve, hydraulic setting tool and bridging plug are connected on the direction of the other end successively by one end of the coiled tubing connector of described tubing string string; Described coiled tubing connector is used for being connected with coiled tubing.The utility model enters under utilizing continuous oil pipe device just can complete bridging plug, bridging plug sets whole operation, therefore the equipment employed during construction is few, operation is few, manually less, can avoid use firer equipment, security performance is high, to the strong adaptability of hole condition, bridging plug bores except rear full-bore can realize sleeve water horizontal well huge discharge staged fracturing.
Description
Technical field
The utility model relates to petroleum technology field, more particularly, relates to a kind of tubing string string.
Background technology
When horizontal well carries out bridging plug and perforating job, the method of usual waterpower pumping bridging plug, perforating gun, the method has that packing is reliable, classification pressure break progression is unrestricted, crack placement feature accurately, and at home and abroad unconventionaloil pool is used widely in hiding in recent years.
The method of existing waterpower pumping bridging plug, perforating gun is that then to infusion liquid in well, promotion bridging plug and connection thereof are made instrument to precalculated position by the flowing of liquid with entering bridging plug under cable and perforation joins the tubing string string done.Then start bridging plug setting tool by cable energising, give up after setting bridging plug.Drag tubing string string to precalculated position, perforating gun is aimed at the mark position, then energising igniting perforation, for well fracturing provides passage.Enter instrument under recurrence perforation hole rifle and bridging plug, start first paragraph pressure break.After completing first paragraph pressure break, use the same method, according under enter the requirement of hop count, enter bridging plug down successively, perforation, pressure break.After staged fracturing completes, adopt oil pipe or continuous tubing drill except all bridging plugs, then carry out pilot production or operation.
Enter under under employing cable, the mode of entrance aperture rifle needs extra use cable car to carry out bridging plug, perforation troop and corollary equipment complete bridging plug and set and well-case perforating, instrument provider provides down-hole supporting operation instrument etc., in oil field, above-mentioned three business all Bu Shiyige company can have simultaneously, the equipment that the method for existing waterpower pumping bridging plug and perforation axle-linked cable-car string is employed in work progress is many, operation is many, artificial many, and need to employ firer's equipment, security control requirements is high, to the bad adaptability of severe hole condition, capability in handling accident is weak.
Therefore, how to avoid the problem owing to needing the poor stability using firer's equipment to cause, become the technical problem that those skilled in the art are urgently to be resolved hurrily.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of tubing string string, to avoid the problem owing to needing the poor stability using firer's equipment to cause.
For achieving the above object, the utility model provides following technical scheme:
A kind of tubing string string, at least comprises that the coiled tubing connector, the machinery that are in series are given up, centralizer, collar locator, abrasive perforating sliding sleeve, hydraulic setting tool and bridging plug;
Described abrasive perforating sliding sleeve, hydraulic setting tool and bridging plug are connected on the direction of the other end successively by one end of the coiled tubing connector of described tubing string string;
Described coiled tubing connector is used for being connected with coiled tubing.
Preferably, in above-mentioned tubing string string, described machinery is given up and is arranged between described coiled tubing connector and described centralizer;
Described collar locator is arranged between described centralizer and described abrasive perforating sliding sleeve.
Preferably, in above-mentioned tubing string string, described bridging plug comprises:
Center-pole;
Be fixed on the top connection of described center-pole one end;
Be sheathed on the extrusion ring on described center-pole;
Be fixed on the leading cone of the described center-pole other end;
Be sheathed on described center-pole, and the bridging plug annular space part between described extrusion ring and described leading cone.
Preferably, in above-mentioned tubing string string, the packing element that described bridging plug annular space part comprises two slip assemblies and is arranged between two slip assemblies.
Preferably, in above-mentioned tubing string string, described slip assemblies comprises:
The conical guide member be connected with described packing element;
Be connected with described conical guide member, have the monolithic slips that stress concentrates groove, one end that the diameter of described conical guide member is less is inserted in described slips.
Preferably, in above-mentioned tubing string string, the centre bore of described center-pole is by being with the blind plugging shutoff of seal, and described blind plugging is arranged in described center-pole one end near described top connection.
Preferably, in above-mentioned tubing string string, described top connection is connected with described center-pole, and is provided with plastic item in described top connection.
Preferably, in above-mentioned tubing string string, described top connection and described leading cone are occlusion structure.
As can be seen from above-mentioned technical scheme, during the tubing string string operation adopting the utility model to provide, be connected with coiled tubing connector by coiled tubing, realize the connection with tubing string string, utilize centralizer to improve the rigidity of tubing string string, make tubing string string placed in the middle at work progress.The utility model uses coiled tubing, and hydraulic setting tool single-stage or Multi-stage hydraulic cylinder set bridging plug and give up, and bridging plug sets completely, and bridging plug packing is reliable.Collar locator school is deeply accurate, guarantees that perforating site is accurate.The utility model enters under utilizing continuous oil pipe device just can complete bridging plug, bridging plug sets whole operation, therefore the equipment employed during construction is few, operation is few, manually less, can avoid use firer equipment, security performance is high, to the strong adaptability of hole condition, bridging plug bores except rear full-bore can realize sleeve water horizontal well huge discharge staged fracturing.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of a kind of tubing string string that Fig. 1 provides for the utility model embodiment;
The sectional view of the bridging plug that Fig. 2 provides for the utility model embodiment.
Wherein, 100 is coiled tubing connector, and 200 give up for machinery, and 300 is centralizer, and 400 is collar locator, and 500 is abrasive perforating sliding sleeve, and 600 is hydraulic setting tool, and 700 is bridging plug;
701 is top connection, and 702 is plastic item, and 703 is blind plugging, and bar centered by 704,705 is packing element, and 706 is monolithic slips, and 707 is leading cone, and 708 is extrusion ring, and 709 is conical guide member.
Detailed description of the invention
Core of the present utility model is that providing a kind of tubing string string and bridging plug to set joins with abrasive perforating the method done, to avoid the problem owing to needing the poor stability using firer's equipment to cause.
Below, with reference to accompanying drawing, embodiment is described.In addition, the embodiment shown in below does not play any restriction effect to the utility model content described in claim.In addition, the solution that the full content of the formation below represented by embodiment is not limited to as the utility model described in claim is necessary.
Refer to Fig. 1 and Fig. 2, the structural representation of a kind of tubing string string that Fig. 1 provides for the utility model embodiment; The sectional view of the bridging plug that Fig. 2 provides for the utility model embodiment.
The tubing string string that the utility model embodiment provides, comprises that the coiled tubing connector 100, the machinery that are in series give up 200, centralizer 300, collar locator 400, abrasive perforating sliding sleeve 500, hydraulic setting tool 600 and bridging plug 700.Abrasive perforating sliding sleeve 500 cuts off pin or shearing ring by suppressing in tubing string string, realizes sliding sleeve displacement, opens the passage of perforation.
Abrasive perforating sliding sleeve 500, hydraulic setting tool 600 and bridging plug 700 are connected on the direction of the other end successively by one end of the coiled tubing connector 100 of tubing string string, namely abrasive perforating sliding sleeve 500, hydraulic setting tool 600 and bridging plug 700 need according to fixing sequential series, the position of other parts can be mutually adjusted, and coiled tubing connector 100 is for being connected with coiled tubing.It should be noted that, machinery gives up 200, centralizer 300, collar locator 400, abrasive perforating sliding sleeve 500, hydraulic setting tool 600 and bridging plug 700 can be the identical parts of prior art, improvement of the present utility model is to increase coiled tubing connector 100, and the series sequence of all parts.
During the tubing string string operation adopting the utility model to provide, be connected with coiled tubing connector 100 by coiled tubing, realize, with the connection of tubing string string, utilizing centralizer 300 to improve the rigidity of tubing string string, making tubing string string placed in the middle at work progress.The utility model uses coiled tubing, and the single-stage of hydraulic setting tool 600 or Multi-stage hydraulic cylinder set bridging plug and give up, and bridging plug 700 sets completely, and bridging plug 700 packing is reliable.Collar locator 400 school is deeply accurate, guarantees that perforating site is accurate.The utility model enters under utilizing continuous oil pipe device just can complete bridging plug, bridging plug sets whole operation, only a company just can complete whole operation, therefore the equipment employed during construction is few, operation is few, manually less, can avoid use firer equipment, security performance is high, to the strong adaptability of hole condition, bridging plug bores except rear full-bore can realize sleeve water horizontal well huge discharge staged fracturing.
In the utility model one specific embodiment, machinery is given up and 200 is arranged between coiled tubing connector 100 and centralizer 300; Collar locator 400 is arranged between centralizer 300 and abrasive perforating sliding sleeve 500.
Comprise spring and fixture block in collar locator 400, spring withstands fixture block, makes fixture block be close to internal surface of sleeve pipe, carrys out precise positioning by the frictional force of fixture block and casing-contact.Fixture block on collar locator 400 contacts with casing wall, can provide centralizing function to the abrasive perforating sliding sleeve 500 be connected under it.Preferably, the fixture block on collar locator 400 uses high-abrasive material make or make Wear-resistant Treatment on fixture block surface, such as, increase wearing layer.
In the utility model one specific embodiment, bridging plug 700 comprises center-pole 704, top connection 701, extrusion ring 708, leading cone 707 and bridging plug annular space part.
Wherein, one end of center-pole 704 is fixed in top connection 701, and extrusion ring 708 is sheathed on center-pole 704, and leading cone 707 is fixed on the other end of center-pole 704, and bridging plug annular space part is sheathed on center-pole 704, and between extrusion ring 708 and leading cone 707.
The packing element 705 that bridging plug annular space part comprises two slip assemblies and is arranged between two slip assemblies.Wherein, slip assemblies is monolithic slips 706.Wherein, conical guide member 709 is connected with packing element 705, has stress and concentrates the slips 706 of groove to be connected with conical guide member 709, and one end that the diameter of conical guide member 709 is less is inserted in slips 706.
Hydraulic setting tool 600 comprises single-stage or Multi-stage hydraulic cylinder, cuts off pin or shearing ring is opened by building the pressure in managing.Packing element 705 on pushing cylinder extruding bridging plug 700 after opening on hydraulic setting tool 600 and monolithic slips 706, realize setting of bridging plug 700.The top connection of hydraulic setting tool 600 had chute wiper block, had centralizing function to abrasive perforating sliding sleeve 500.
In the utility model one specific embodiment, the centre bore of center-pole 704 is by being with blind plugging 703 shutoff of seal, and blind plugging 703 is arranged in center-pole 704 one end near top connection 701.
In the utility model one specific embodiment, top connection 701 and center-pole 704 threaded engagement, and be provided with plastic item 702 in top connection 701.Top connection 701 and leading cone 707 are occlusion structure, are mutually engaged when boring mill bridging plug 700, prevent from rotating.
The major part composition of center-pole 704 and bridging plug 700 is made up of composite fibre, easily bores mill, easily returns from pit shaft and eject.Hydraulic setting tool 600 end is stretched out and sets bar and be connected by screw thread or other modes with plastic item on bridging plug 702, sets bar and plastic item 702 departs from when setting bridging plug 700, realizes giving up.
Bridging plug disclosed in the utility model embodiment sets and joins with abrasive perforating the method done, and comprises the steps:
1, as above will be sent to down-hole by tubing string string disclosed in embodiment with coiled tubing, and by collar locator 400, tubing string string will be sent to precalculated position, make bridging plug 700 aim at predetermined setting position;
2, start hydraulic setting tool 600 set bridging plug 700 and hydraulic setting tool 600 and bridging plug 700 are departed from; In this process, the mode starting hydraulic setting tool 600 is suppress in coiled tubing, cuts off the pin on hydraulic setting tool 600 or shearing ring, and the single-stage of hydraulic setting tool 600 or Multi-stage hydraulic cylinder produce thrust, promotes pushing cylinder extruding bridging plug 700;
On bridging plug 700,1 packing element 705 and 2 monolithic slips 706 extrude by hydraulic setting tool 600 pushing cylinder, packing element 705 expands packing tubing string string and casing annulus, monolithic slips 705 radial dilatation stings tight internal surface of sleeve pipe, realize the bidirectionally anchoring of bridging plug 700 in sleeve pipe, meanwhile, the disengaging of hydraulic setting tool 600 and bridging plug 700 is realized.
3, carry coiled tubing on, by the location of collar locator 400, make abrasive perforating sliding sleeve 500 aim at predetermined perforating site, perforating fluid, through the nozzle of abrasive perforating sliding sleeve 500, penetrates sleeve-penetrating, cement sheath and near wellbore formation, forms preforation tunnel;
Concrete, above carry coiled tubing, located by collar locator 400, make abrasive perforating sliding sleeve 500 aim at predetermined perforating site.Suppress in tubing string string, after certain pressure of having sprained, the sliding sleeve in abrasive perforating sliding sleeve 500 is by shear pin or shearing ring, and abrasive perforating sliding sleeve is opened.Pumped into by perforating fluid in tubing string string, perforating fluid, through the nozzle of abrasive perforating sliding sleeve 500, produces high-speed jet, penetrates sleeve-penetrating, cement sheath and near wellbore formation, forms preforation tunnel, provides pressure break passage.Containing quartz sand in perforating fluid, the intensity of jet can be improved.
4, trip out tubing string string, in sleeve pipe, implement huge discharge pressing crack construction, complete this section of construction;
5, after completing the pressure break of all sections, under enter to bore mill bridging plug tubing string and bore and grind off all bridging plugs.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a tubing string string, it is characterized in that, at least comprise that the coiled tubing connector (100), the machinery that are in series are given up (200), centralizer (300), collar locator (400), abrasive perforating sliding sleeve (500), hydraulic setting tool (600) and bridging plug (700);
Described abrasive perforating sliding sleeve (500), hydraulic setting tool (600) and bridging plug (700) are connected on the direction of the other end successively by one end of the coiled tubing connector (100) of described tubing string string;
Described coiled tubing connector (100) is for being connected with coiled tubing.
2. tubing string string as claimed in claim 1, is characterized in that, described machinery give up (200) be arranged between described coiled tubing connector (100) and described centralizer (300);
Described collar locator (400) is arranged between described centralizer (300) and described abrasive perforating sliding sleeve (500).
3. tubing string string as claimed in claim 1, it is characterized in that, described bridging plug (700) comprising:
Center-pole (704);
Be fixed on the top connection (701) of described center-pole (704) one end;
Be sheathed on the extrusion ring (708) on described center-pole (704);
Be fixed on the leading cone (707) of described center-pole (704) other end;
Be sheathed on described center-pole (704), and be positioned at the bridging plug annular space part between described extrusion ring (708) and described leading cone (707).
4. tubing string string as claimed in claim 3, it is characterized in that, described bridging plug annular space part comprises two slip assemblies and is arranged at the packing element (705) between two slip assemblies.
5. tubing string string as claimed in claim 4, it is characterized in that, described slip assemblies comprises:
The conical guide member (709) be connected with described packing element (705);
Be connected with described conical guide member (709), have the monolithic slips (706) that stress concentrates groove, one end that the diameter of described conical guide member (709) is less is inserted in described slips (706).
6. tubing string string as claimed in claim 3, it is characterized in that, the centre bore of described center-pole (704) is by being with blind plugging (703) shutoff of seal, and described blind plugging (703) is arranged in described center-pole (704) one end near described top connection (701).
7. tubing string string as claimed in claim 3, it is characterized in that, described top connection (701) is connected with described center-pole (704), and is provided with plastic item (702) in described top connection (701).
8. tubing string string as claimed in claim 3, is characterized in that, described top connection (701) and described leading cone (707) are occlusion structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488615.9U CN204326983U (en) | 2014-08-27 | 2014-08-27 | Tubing string string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488615.9U CN204326983U (en) | 2014-08-27 | 2014-08-27 | Tubing string string |
Publications (1)
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|---|---|
| CN204326983U true CN204326983U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420488615.9U Expired - Fee Related CN204326983U (en) | 2014-08-27 | 2014-08-27 | Tubing string string |
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