CN206016738U - A kind of orientation of open sliding sleeve slightly solubility ball is shot through instrument - Google Patents
A kind of orientation of open sliding sleeve slightly solubility ball is shot through instrument Download PDFInfo
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- CN206016738U CN206016738U CN201620998708.5U CN201620998708U CN206016738U CN 206016738 U CN206016738 U CN 206016738U CN 201620998708 U CN201620998708 U CN 201620998708U CN 206016738 U CN206016738 U CN 206016738U
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Abstract
This utility model is related to Oil/gas Well transformation field, particularly a kind of orientation of open sliding sleeve slightly solubility ball is shot through instrument, it includes that locating piece and nozzle, nozzle are connected to the bottom port position of locating piece, and the surrounding outer wall of locating piece connection nozzle one end is provided with positioning support leg.Instrument is shot through using coiled tubing band orientation and is lowered into pitching sliding sleeve position, realize that orientation is shot through slightly solubility ball by high-speed jet of the perforation load fluid at nozzle, efficiently solve the problems, such as that slightly solubility ball is stuck fracturing string cannot to connect with oil and gas reservoir caused by the row of returning, after improve pressure break, the success rate and timeliness of product is sought in Oil/gas Well discharge opeing, design is simple, and technological operation is convenient, and effect of field application is good, practical, the success rate and timeliness of product is sought in Oil/gas Well discharge opeing after improve pressure break.
Description
Technical field
This utility model is related to Oil/gas Well transformation field, is particularly suitable for the set segmented pressure of the multistage pitching skidding of fixed tubular column
The orientation for splitting a kind of open sliding sleeve slightly solubility ball in technique is shot through instrument.
Background technology
In recent years, many Oil/gas Wells of Changqing oilfields are intended using the set segmented pressure of fixed tubular column multi-stage water power perforation pitching skidding
Split, skid set segmented pressure break, the pitching of fixed tubular column open hole packer of fixed tubular column multi-stage water power perforation mechanical delamination pitching is skidded
The tubing string form of construction work such as set segmented pressure break, carries out segmentation transformation, formation testing, completion integral operation.Although these tubing string modes are carried
The high transformation efficiency of Oil/gas Well, reduces frequency and labor intensity that workmen plays lower tubular column, shortens the complete of Oil/gas Well
The well cycle, but but occur in that a stubborn problem：Slightly solubility ball after fracturing reform used by open sliding sleeve cannot be from tubing string
Discharge well head is smoothly returned inside, if especially stuck phenomenon occurs in afterbody sliding sleeve ball, it will cause tubing string to block, it is impossible to even
Logical layer of oil gas production, asks product to bring very big difficult and challenge to live discharge opeing.
Company is skidded in the tens of saliva horizontal wells for covering construction technology using the multistage pitching of fixed tubular column at present, is had occurred that
More than ten mouthfuls of afterbody sliding sleeve balls stuck cannot the row of returning security incident.Find according to Field Research, fixed tubular column pitching is skidded and covered
Slightly solubility ball used is broadly divided into steel ball and resin balls, particularly resin balls and is fallen on sliding sleeve tee by sliding sleeve internal diameter, by
In the macromolecular material resin elasticity of itself, in the confined space pressurized be easy to occur deformation stuck phenomenon.From current technique
Service condition from the point of view of, this problem has become is skidded set segmented Fracturing Technology development using the multistage pitching of fixed tubular column
Bottleneck, seriously constrain the completion efficiency of Oil/gas Well under the technique, increased Oil/gas Well spy and repair and make construction cost.
However, for the problems referred to above, yet there are no the proprietary instrument of the stuck deblocking of sliding sleeve ball, a set of being suitable for more is not formed
The technique of the stuck deblocking of sliding sleeve ball, this could smoothly unseal stuck sliding sleeve ball with what instrument and technique actually, and this is one
Problem in the urgent need to address.
Content of the invention
The purpose of this utility model is to provide a kind of orientation of open sliding sleeve slightly solubility ball and is shot through instrument, efficiently solves
The multistage pitching of fixed tubular column skid apply mechanically slightly solubility ball stuck cannot the row of returning problem, successfully got through fracturing string and stored up with oil gas
The communicating passage of layer, Oil/gas Well discharge opeing after improve pressure break seek the success rate and timeliness of product.
This utility model solves the technical scheme of its technical problem employing：A kind of orientation of open sliding sleeve with slightly solubility ball
Instrument is shot through, be it is characterized in that：It includes that locating piece and nozzle, nozzle are connected to the bottom port position of locating piece, and locating piece connects
The surrounding outer wall for connecing nozzle one end is provided with positioning support leg.
Described positioning support leg is cylindrical structure, the bottom diameter with diameter greater than locating piece of its cylinder, more than treating
The diameter of slightly solubility ball is processed, being less than the internal diameter of the pitching sliding sleeve for accommodating pending slightly solubility ball, and positioning support leg one end is receipts
Mouth end, the closing in end of positioning support leg are fixedly connected to form integrative-structure with locating piece outer wall, and locating piece is lowered on pitching sliding sleeve
During end, the positioning support leg of locating piece extends simultaneously clamping to pitching sliding sleeve, pending slightly solubility ball is located on the inside of positioning support leg
Do not contact in space and with nozzle.
Several liquid circulation ducts are intervally distributed with the cylinder of described positioning support leg.
Described nozzle is made up of nozzle cage and nozzle body, and the bottom port of wherein locating piece has female thread, nozzle cage
There are external screw thread, nozzle cage to be threadedly attached in the bottom port of locating piece, nozzle body is nested in nozzle cage
The tapered structure of described nozzle body, the small-caliber end of nozzle body are located at bottom.
The upper end diameter of described locating piece is more than lower end diameter, from top to bottom adopts stepped form undergauge step by step, wherein
The upper end external diameter of locating piece is 52mm, and upper-end inner diameter is 46mm, and length is 350mm, and the diameter of nozzle is 4.5mm.
Described locating piece is processed using the steel of 42CrMo, and conditioned process hardness reaches 240 ~ 280HB, nozzle
Set is formed using hard alloy tungsten carbide YG8 materials processings.
A kind of orientation of open sliding sleeve slightly solubility ball is shot through tool pipe string, it is characterized in that：It is included from top to bottom successively
The coiled tubing of connection, external slips adapter, change buckle joint, elastic centralizer, orientation are shot through instrument.
Described coiled tubing is connected by external slips with external slips adapter, external slips adapter, change buckle joint, elasticity
Centralizer and orientation are shot through being threaded connection between instrument.
The beneficial effects of the utility model are shot through instrument using coiled tubing band orientation and are lowered into pitching sliding sleeve position, pass through
High-speed jet of the perforation load fluid at nozzle realizes that orientation is shot through slightly solubility ball, efficiently solves that slightly solubility ball is stuck cannot to be returned
The problem that cannot connect with oil and gas reservoir of fracturing string caused by row, after improve pressure break Oil/gas Well discharge opeing ask the success rate of product with
Timeliness, design are simple, and technological operation is convenient, and effect of field application is good, and practical, Oil/gas Well discharge opeing after improve pressure break is asked
The success rate and timeliness of product.
Description of the drawings
This utility model is further illustrated with reference to embodiment accompanying drawing.
Fig. 1 is that a kind of orientation of open sliding sleeve slightly solubility ball is shot through instrument schematic diagram.
Fig. 2 is that a kind of orientation of open sliding sleeve slightly solubility ball is shot through process duct string schematic diagram.
In figure：1st, coiled tubing；2nd, external slips adapter；3rd, become buckle joint；4th, elastic centralizer；5th, orientation is shot through work
Tool；6th, locating piece；7th, nozzle；8th, liquid circulation duct；9th, positioning support leg, 10, pitching sliding sleeve；11st, nozzle cage；12nd, nozzle body.
Specific embodiment
Below embodiment of the present utility model is elaborated：The present embodiment is with technical solutions of the utility model as front
Put and implemented, give detailed embodiment and specific operating process.It should be pointed out that to the common of this area
For technical staff, without departing from the concept of the premise utility, some modifications and improvement can also be made, these all belong to
In this utility model protection domain.
Embodiment 1
As a kind of Fig. 1 orientations of open sliding sleeve slightly solubility ball of the present utility model are shot through shown in tool construction schematic diagram,
It includes that locating piece 6 and nozzle 7, nozzle 7 are connected to the bottom port position of locating piece 6,7 one end of the connection nozzle of locating piece 6
Surrounding outer wall is provided with positioning support leg 9.
Wherein positioning support leg 9 is cylindrical structure, the bottom diameter with diameter greater than locating piece 6 of its cylinder, more than treating
The diameter of slightly solubility ball is processed, being less than the internal diameter of the pitching sliding sleeve 10 of the pending slightly solubility ball of receiving, and 9 one end of positioning support leg is
Closing in end, the closing in end of positioning support leg 9 are fixedly connected to form integrative-structure with 6 outer wall of locating piece, and locating piece 6 is lowered into pitching cunning
When covering 10 upper end, the positioning support leg 9 of locating piece 6 extends simultaneously clamping to pitching sliding sleeve 10, is located at pending slightly solubility ball fixed
Do not contact in 9 inner space of supporting leg of position and with nozzle 7, pending slightly solubility ball is shot through by nozzle 7.
Several liquid circulation ducts 8 are intervally distributed with the cylinder of positioning support leg 9, and nozzle 7 is being shot through slightly solubility ball
During liquid can be discharged by liquid circulation duct 8.
Nozzle 7 is made up of nozzle cage 11 and nozzle body 12, and the bottom port of wherein locating piece 6 has female thread, nozzle cage
11 have external screw thread, nozzle cage 11 to be threadedly attached in the bottom port of locating piece 6, and nozzle body 12 is nested in nozzle cage 11
Interior, 12 tapered structure of nozzle body, the small-caliber end of nozzle body 12 are located at bottom, and it is fixed that nozzle body 12 is fixed on by nozzle cage 11
In the bottom port of position block 6, be conveniently replaceable after producing abrasion, nozzle body 12 is taken out after screwing off nozzle cage 11 and changed.
The upper end diameter of locating piece 6 is more than lower end diameter, from top to bottom adopts stepped form undergauge, wherein locating piece step by step
6 upper end external diameter is 52mm, and upper-end inner diameter is 46mm, and length is 350mm, and the length in liquid circulation duct 8 is 15mm, and width is
5mm, the diameter of nozzle 7 is 4.5mm.
Locating piece 6 is processed using the superhigh intensity steel of 42CrMo, and conditioned process hardness reaches 240 ~ 280HB,
There is very high anti-intrinsic pressure, tensile strength；Nozzle body 12 is the ready-made wear resistant spray nozzle of import, and nozzle cage 11 is using hard alloy carbon
Change tungsten YG8 materials processings to form, be respectively provided with very high abrasion-resistance.
High-speed jet in this utility model by perforation load fluid at nozzle 7 realizes that orientation is shot through slightly solubility ball, has
Effect solve the problems, such as slightly solubility ball stuck cannot the caused fracturing string of the row of returning cannot connect with oil and gas reservoir, improve pressure break
The success rate and timeliness of product is sought in Oil/gas Well discharge opeing afterwards, and design is simple, and technological operation is convenient, and effect of field application is good, practicality
By force, after improve pressure break, the success rate and timeliness of product is sought in Oil/gas Well discharge opeing.
Embodiment 2
A kind of orientation of open sliding sleeve slightly solubility ball is shot through tool pipe string, as shown in Fig. 2 it is included from top to bottom successively
The coiled tubing 1 of connection, external slips adapter 2, change buckle joint 3, elastic centralizer 4, orientation are shot through instrument 5.
Described coiled tubing 1 is directly connected by external slips with external slips adapter 2, herein coiled tubing 1 and wild card
Do not allow between watt adapter 2 using threaded connection.And external slips adapter 2, change buckle joint 3, elastic centralizer 4 and orientation
It is shot through being threaded connection between instrument 5, easy to disassemble and replacing.
The part not described in detail in the present embodiment and structure, such as coiled tubing 1, external slips adapter 2, change buckle joint
3rd, the well-known components of the category of elastic centralizer 4 industry and common structure, only need to choose use, be not described in detail herein.
Embodiment 3
A kind of orientation of open sliding sleeve slightly solubility ball is shot through technique, and it comprises the steps：
Step 1, the orientation with nozzle 7 is installed on ground and be shot through instrument；
Step 2, from top to bottom successively by coiled tubing 1, external slips adapter 2, become buckle joint 3, elastic centralizer 4, fixed
Connect to the instrument that is shot through 5, constitute orientation and be shot through tool pipe string；
Step 3, the orientation that step 2 connects formation are shot through tool pipe string and are lowered into predetermined well depth position；
Step 4, under enter predetermined well depth position after, start coiled tubing 1 pump truck, followed with 400 ~ 500L/min of discharge capacity
Ring, after stable circulation improves discharge capacity to 800 ~ 1000L/min, is 100 ~ 120kg/m by sand concentration3Load fluid by orientation
The nozzle 7 of instrument is shot through, high-speed jet is formed, is shot through slightly solubility ball, now the oil pressure curve of coiled tubing pump truck can show
Decline flex point；
Step 5, when observing that the pump truck oil pressure of coiled tubing 1 declines suddenly, this explanation has been shot through slightly solubility ball, reaches
The purpose of connection fracturing string and layer of oil gas production；
Step 6, be shot through slightly solubility ball after, with discharge capacity 1000L/min infusion displacement fluid, liquid measure reaches 1.5 times of oil pipe annular spaces
Orientation is shot through in tool pipe string load fluid all for termination of pumping after flowline annular space by volume；
After step 7, termination of pumping pressure release, orientation is shot through tool pipe string and rises to complete to construct to make with the speed of 40 ~ 60m/min
Industry.
Predetermined well depth position wherein in step 3 refer to orientation be shot through the positioning support leg 9 of instrument 5 just with pitching sliding sleeve 10
Well depth position during upper-end contact, it is reserved with the slightly solubility ball being seated in pitching sliding sleeve 10 certain to make the nozzle 7 for being shot through instrument 5
Apart from gap.
Claims (9)
1. a kind of orientation of open sliding sleeve slightly solubility ball is shot through instrument, it is characterized in that：It includes locating piece（6）And nozzle（7）,
Nozzle（7）It is connected to locating piece（6）Bottom port position, locating piece（6）Connection nozzle（7）The surrounding outer wall of one end is provided with
Positioning support leg（9）.
2. a kind of orientation of open sliding sleeve slightly solubility ball according to claim 1 is shot through instrument, it is characterized in that：Described
Position supporting leg（9）For cylindrical structure, its cylinder with diameter greater than locating piece（6）Bottom diameter, be more than pending slightly solubility
The diameter of ball, the pitching sliding sleeve less than the pending slightly solubility ball of receiving（10）Internal diameter, and positioning support leg（9）One end is closing in
End, positioning support leg（9）Closing in end and locating piece（6）Outer wall is fixedly connected to form integrative-structure, locating piece（6）It is lowered into pitching
Sliding sleeve（10）During upper end, locating piece（6）Positioning support leg（9）Extend and clamping is to pitching sliding sleeve（10）Interior, make pending indissoluble
Property ball be located at positioning support leg（9）In inner space and and nozzle（7）Do not contact.
3. a kind of orientation of open sliding sleeve slightly solubility ball according to claim 2 is shot through instrument, it is characterized in that：Described
Positioning support leg（9）Cylinder on be intervally distributed with several liquid circulation ducts（8）.
4. a kind of orientation of open sliding sleeve slightly solubility ball according to claim 1 is shot through instrument, it is characterized in that：Described
Nozzle（7）It is by nozzle cage（11）And nozzle body（12）Constitute, wherein locating piece（6）Bottom port have female thread, nozzle cage
（11）There are external screw thread, nozzle cage（11）It is threadedly attached in locating piece（6）Bottom port in, nozzle body（12）It is nested in spray
Muzzle（11）Interior.
5. a kind of orientation of open sliding sleeve slightly solubility ball according to claim 4 is shot through instrument, it is characterized in that：Described
Nozzle body（12）Tapered structure, nozzle body（12）Small-caliber end be located at bottom.
6. a kind of orientation of open sliding sleeve slightly solubility ball according to claim 1 is shot through instrument, it is characterized in that：Described
Locating piece（6）Upper end diameter be more than lower end diameter, from top to bottom using stepped form undergauge, wherein locating piece step by step（6）'s
Upper end external diameter is 52mm, and upper-end inner diameter is 46mm, and length is 350mm, nozzle（7）Diameter be 4.5mm.
7. a kind of orientation of open sliding sleeve slightly solubility ball according to claim 1 is shot through instrument, it is characterized in that：Described
Locating piece（6）Processed using the steel of 42CrMo, conditioned process hardness reaches 240 ~ 280HB, nozzle cage（11）Using
Hard alloy tungsten carbide YG8 materials processings are formed.
8. a kind of orientation of open sliding sleeve slightly solubility ball is shot through tool pipe string, it is characterized in that：It includes from top to bottom connecting successively
The coiled tubing for connecing（1）, external slips adapter（2）, become buckle joint（3）, elastic centralizer（4）, orientation be shot through instrument（5）.
9. a kind of orientation of open sliding sleeve slightly solubility ball according to claim 8 is shot through tool pipe string, it is characterized in that：Institute
The coiled tubing that states（1）With external slips adapter（2）Connected by external slips, external slips adapter（2）, become buckle joint（3）, bullet
Property centralizer（4）And orientation is shot through instrument（5）Between be threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620998708.5U CN206016738U (en) | 2016-08-31 | 2016-08-31 | A kind of orientation of open sliding sleeve slightly solubility ball is shot through instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620998708.5U CN206016738U (en) | 2016-08-31 | 2016-08-31 | A kind of orientation of open sliding sleeve slightly solubility ball is shot through instrument |
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| Publication Number | Publication Date |
|---|---|
| CN206016738U true CN206016738U (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620998708.5U Active CN206016738U (en) | 2016-08-31 | 2016-08-31 | A kind of orientation of open sliding sleeve slightly solubility ball is shot through instrument |
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| CN (1) | CN206016738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194093A (en) * | 2016-08-31 | 2016-12-07 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | The orientation of a kind of open sliding sleeve slightly solubility ball is shot through instrument and technique |
-
2016
- 2016-08-31 CN CN201620998708.5U patent/CN206016738U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194093A (en) * | 2016-08-31 | 2016-12-07 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | The orientation of a kind of open sliding sleeve slightly solubility ball is shot through instrument and technique |
| CN106194093B (en) * | 2016-08-31 | 2019-04-16 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of open sliding sleeve is shot through tool and technique with the orientation of slightly solubility ball |
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