CN104632168B - A kind of hydraulic jet perforation huge discharge fracturing technology tubing string and method - Google Patents
A kind of hydraulic jet perforation huge discharge fracturing technology tubing string and method Download PDFInfo
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- CN104632168B CN104632168B CN201310573584.7A CN201310573584A CN104632168B CN 104632168 B CN104632168 B CN 104632168B CN 201310573584 A CN201310573584 A CN 201310573584A CN 104632168 B CN104632168 B CN 104632168B
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- ball seat
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- sealer
- tubing string
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005516 engineering process Methods 0.000 title claims abstract description 21
- 238000010276 construction Methods 0.000 claims abstract description 26
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 6
- 239000004576 sand Substances 0.000 description 7
- 238000005488 sandblasting Methods 0.000 description 5
- 230000003628 erosive effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000009096 changqing Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/114—Perforators using direct fluid action on the wall to be perforated, e.g. abrasive jets
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Disintegrating Or Milling (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A kind of hydraulic jet perforation huge discharge fracturing technology tubing string and method, belong to oilfield prospecting developing technical field.Hydraulic blast connects the first ball seat, the other end connection throttling sanding machine of first ball seat, the other end connection K344 packers of throttling sanding machine, the other end of K344 packers connects the second ball seat, the other end connection screen casing of second ball seat, the other end connection plug of screen casing, the first ball seat has ball sealer corresponding with sanding machine lower end ball seat；Second ball seat has ball sealer corresponding with K344 packers lower end ball seat.This hair uses the fracturing integrated tubing string of abrasive perforating, changes liquid outlet channel by throwing various sizes of ball sealer, different liquid outlet channels is used in the different construction stages：Meet the construction requirement that an instrument carries out multistage pressure break.
Description
Technical field
The present invention relates to a kind of hydraulic jet perforation huge discharge fracturing technology tubing string and method, belong to oilfield prospecting developing
Technical field.
Background technology
In recent years, continuing to develop with exploration and development technology, the exploitation of unconventional petroleum resources is increasingly taken seriously.
Volume fracturing also attracts attention more and more as one of important means transformed unconventional reservoir.Volume fracturing refers to
In hydraulic fracturing process using huge discharge, large sand amount, big liquid measure, low sand than injection mode make intrinsic fracture it is continuous expansion and
Brittle rock produces shearing slip, intrinsic fracture and the interlaced fracture network of man-made fracture is formed, so as to increase variant
Product, improves initil output and ultimate recovery.
At present, bridging plug staged fracturing technique, bore hole are insulated for the external experimental study of water of oil-gas field horizontal well volume fracturing
Device staged fracturing technique and hydraulic sand blasting staged fracturing technique etc..Because hydraulic sand blasting staged fracturing technique has construction risk
Small, efficiency high, cost be low, it is small to reservoir damage the features such as, one of agent technology as Changqing oilfields horizontal well volume pressure, still
Discharge capacity is big in volume fracturing work progress, and sand amount is big, injures serious to injector erosion, it is impossible to meet an instrument progress many
The construction requirement of section pressure break.Therefore, the instrument erosion damage in hydraulic jet perforation huge discharge fracturing process becomes and must solved
Certainly the problem of.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention provide a kind of hydraulic jet perforation huge discharge fracturing technology tubing string and
Method.
A kind of hydraulic jet perforation huge discharge fracturing technology tubing string, hydraulic blast connects the first ball seat, the first ball seat
Other end connection throttling sanding machine, the other end connection K344 packers of throttling sanding machine, the other end connection of K344 packers
Second ball seat, the other end connection screen casing of the second ball seat, the other end connection plug of screen casing, the first ball seat has and sanding machine lower end
The corresponding ball sealer of ball seat；Second ball seat has ball sealer corresponding with K344 packers lower end ball seat.
A kind of hydraulic jet perforation huge discharge fracturing technology tubing string, solution discharge capacity in volume fracturing work progress is big, sand
Amount is big, injures serious to injector erosion, it is impossible to meet a problem of instrument carries out the construction requirement of multistage pressure break.
In order to achieve the above object, the invention provides a kind of hydraulic jet perforation huge discharge fracturing technology tubing string, it is special
Different part is, different liquid outlet channels is used in the different construction stages.
A kind of application method of hydraulic jet perforation huge discharge fracturing technology tubing string, comprises the following steps：
Step 1）, instrument pressed：Hydraulic blast, ball seat, throttling sanding machine, K344 packers, ball seat, screen casing, plug
The predetermined transformation position of the process pipe string tripping in that is formed by connecting；
Step 2）, from well head put into corresponding with sanding machine lower end ball seat ball sealer, pumped using small displacement, work as ball sealer
Ball seat following tubing string is blocked when being seated on the ball seat of sanding machine lower end；
Step 3）, from well head inject load fluid, abrasive perforating is carried out by hydraulic blast, perforation terminates rear reacting cycle will
Ball sealer is washed out；
Step 4）, from well head put into corresponding with K344 packers lower end ball seat ball sealer, pumped using small displacement, when close
After blocking is seated on the ball seat of K344 packers lower end, huge discharge pressing crack construction is carried out；
Step 5）, pressure break terminate rear reacting cycle and wash out ball sealer, by tubing string carry to next construction layer position constructed；
Step 2）With step 4）In need to be pumped the ball sealer with pump small displacement until sealing after well head input ball sealer
Ball is seated on corresponding ball seat.
Beneficial effects of the present invention are as follows：Using the fracturing integrated tubing string of abrasive perforating, by throwing various sizes of sealing
Ball changes liquid outlet channel, and different liquid outlet channels is used in the different construction stages：The abrasive perforating stage uses hydraulic blast
Carry out abrasive perforating；The pressure break stage carries out fracturing sand feeding using throttling sanding machine, is adopted while reducing oil pipe internal pressure loss
Load fluid is reduced with big passage sanding machine to injure the erosion of instrument, and there is good adaptability to volume fracturing and longer make
With the life-span, the construction requirement that an instrument carries out multistage pressure break can be met.
Brief description of the drawings
When considered in conjunction with the accompanying drawings, by referring to following detailed description, can more completely more fully understand the present invention with
And the adjoint advantage of many of which is easily learnt, but accompanying drawing described herein is used for providing a further understanding of the present invention,
The part of the present invention is constituted, schematic description and description of the invention is used to explain the present invention, do not constituted to this hair
Bright improper restriction, such as figure are wherein：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the construction schematic diagram that hydraulic blast carries out abrasive perforating；
Fig. 3 is throttling sanding machine and the work of K344 packers, carries out the construction schematic diagram of fracturing sand feeding；
Fig. 4 is to carry tubing string to next construction layer position to carry out construction schematic diagram.
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment
Obviously, those skilled in the art belong to the guarantor of the present invention based on many modifications and variations that spirit of the invention is done
Protect scope.
Embodiment 1：As shown in Figure 1, Figure 2, Figure 3 and Figure 4,
A kind of hydraulic jet perforation huge discharge fracturing technology tubing string, mainly includes：Hydraulic blast, ball seat, throttling sandblasting
Device, K344 packers, ball seat, screen casing, plug.The construction method of the process pipe string is：From well head input and sanding machine lower end ball
The corresponding ball sealer of seat, the following tubing string of ball seat is blocked when ball sealer is seated on the ball seat of sanding machine lower end, passes through hydraulic sand blasting
Device carries out abrasive perforating, and perforation terminates rear reacting cycle and washes out ball sealer, then is put into and with K344 packers lower end ball from well head
The corresponding ball sealer of seat, carries out huge discharge pressing crack construction, and pressure break terminates rear reacting cycle and washes out ball sealer, tubing string is carried to next
Construction layer position repeats said process, carries out the pressing crack construction of next layer of position.The process pipe string is simple in construction, easy to operate, in pressure
Split stage use throttling sanding machine to carry out adding sand to reduce oil pipe internal pressure loss, be hydraulic jet perforation huge discharge pressing crack construction
There is provided approach.
A kind of hydraulic jet perforation huge discharge fracturing technology tubing string, hydraulic blast 1 connects the first ball seat 2, the first ball seat 2
Other end connection throttling sanding machine 3, the other end connection K344 packers 4 of throttling sanding machine 3, K344 packers 4 it is another
The second ball seat 5 of end connection, the other end connection screen casing 6 of the second ball seat 5, the other end connection plug 7 of screen casing 6, the first ball seat 2 has
Ball sealer 8 corresponding with sanding machine lower end ball seat；Second ball seat 5 has ball sealer 9 corresponding with K344 packers lower end ball seat.
A kind of hydraulic jet perforation huge discharge fracturing technology tubing string,
1st, the process pipe string is by hydraulic blast, ball seat, throttling sanding machine, K344 packers, ball seat, screen casing, plug etc.
Instrument, which is linked in sequence, to be formed.
2nd, a kind of hydraulic jet perforation huge discharge fracturing technology tubing string according to claim 1, its application method bag
Include following steps：
1）, instrument connected according to predefined procedure, tripping in precalculated position；
2）, from well head corresponding with sanding machine lower end ball seat ball sealer is put into, when ball sealer is seated in sanding machine lower end ball
Ball seat following tubing string is blocked when on seat；
3）, from well head inject load fluid, by hydraulic blast carry out abrasive perforating, perforation terminate rear reacting cycle will seal
Ball is washed out；
4）, corresponding with same K344 packers lower end ball seat ball sealer, progress huge discharge pressing crack construction are put into from well head；
5）, pressure break terminate rear reacting cycle and wash out ball sealer, by tubing string carry to next construction layer position constructed.
3rd, a kind of hydraulic jet perforation huge discharge fracturing technology tubing string according to claim 2, step 2）And step
4）In need to be pumped the ball sealer with pump small displacement after well head input ball sealer up on ball sealer is seated in corresponding ball seat.
The structural representation of the hydraulic jet perforation huge discharge fracturing technology tubing string provided as shown in Figure 1 for the present invention, should
Process pipe string is formed by connecting by different instruments according to predefined procedure, is mainly included：1st, hydraulic blast；2nd, ball seat；3rd, throttle
Sanding machine；4th, K344 packers；5th, ball seat；6th, screen casing；7th, plug.
On the basis of Fig. 1, with reference to Fig. 2-4, the hydraulic jet perforation huge discharge fracturing technology tubing string provided the present invention
The work progress that will be carried out describes in detail：After instrument is linked in sequence, by the predetermined transformation of process pipe string tripping in
Position；Ball sealer corresponding with sanding machine lower end ball seat is put into from well head, is pumped using small displacement, when ball sealer is seated in sandblasting
Ball seat following tubing string is blocked when on the ball seat of device lower end；Load fluid is injected from well head, abrasive perforating is carried out by hydraulic blast, penetrated
Terminate rear reacting cycle and wash out ball sealer in hole；Ball sealer corresponding with K344 packers lower end ball seat is put into from well head, using small
Discharge capacity is pumped, after ball sealer is seated on the ball seat of K344 packers lower end, carries out huge discharge pressing crack construction；Pressure break is anti-after terminating
Circulation washes out ball sealer, and tubing string is carried to next construction layer position and constructed.
As described above, being explained to embodiments of the invention, as long as but essentially without this hair of disengaging
Bright inventive point and effect can have many deformations, and this will be readily apparent to persons skilled in the art.Therefore, this
The variation of sample is also integrally incorporated within protection scope of the present invention.
Claims (2)
1. a kind of hydraulic jet perforation huge discharge fracturing technology tubing string, it is characterised in that hydraulic blast connects the first ball seat, the
One ball seat the other end connection throttling sanding machine, throttling sanding machine the other end connection K344 packers, K344 packers it is another
One end connects the second ball seat, and the other end connection screen casing of the second ball seat, the other end connection plug of screen casing, the first ball seat has and the
The corresponding ball sealer of one ball seat；Second ball seat has ball sealer corresponding with the second ball seat, the sealing corresponding with the first ball seat
The size of ball and the ball sealer corresponding from the second ball seat is different.
2. a kind of process of hydraulic jet perforation huge discharge fracturing technology tubing string according to claim 1, its feature
It is：
Step 1), instrument pressed：Hydraulic blast, the first ball seat, throttling sanding machine, K344 packers, the second ball seat, screen casing,
The predetermined transformation position of process pipe string tripping in that plug is formed by connecting；
Step 2), from well head put into corresponding with the first ball seat ball sealer, pumped using small displacement, when ball sealer is seated in first
The first ball seat is blocked when on ball seat with lower tubular column；
Step 3), from well head inject load fluid, by hydraulic blast carry out abrasive perforating, perforation terminate rear reacting cycle will seal
Ball is washed out；
Step 4), from well head put into corresponding with the second ball seat ball sealer, pumped using small displacement, when ball sealer is seated in second
After on ball seat, huge discharge pressing crack construction is carried out；
Step 5), pressure break terminate rear reacting cycle and wash out ball sealer, by tubing string carry to next construction layer position constructed；
Step 2) and step 4) in need to be pumped the ball sealer with pump small displacement until ball sealer seat after well head input ball sealer
Fall on corresponding ball seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310573584.7A CN104632168B (en) | 2013-11-15 | 2013-11-15 | A kind of hydraulic jet perforation huge discharge fracturing technology tubing string and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310573584.7A CN104632168B (en) | 2013-11-15 | 2013-11-15 | A kind of hydraulic jet perforation huge discharge fracturing technology tubing string and method |
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| Publication Number | Publication Date |
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| CN104632168A CN104632168A (en) | 2015-05-20 |
| CN104632168B true CN104632168B (en) | 2017-10-17 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271304B (en) * | 2016-04-08 | 2023-09-01 | 中国石油化工股份有限公司 | Erosion testing device and method for throttle sand blaster |
| CN106089172B (en) * | 2016-06-08 | 2018-09-18 | 中国石油天然气股份有限公司 | Fluid pressure type full-bore huge discharge fracturing technology |
| CN106337673A (en) * | 2016-09-18 | 2017-01-18 | 中国石油天然气股份有限公司 | Multilayer-section fracturing technique pipe column and construction method thereof |
| CN110847875B (en) * | 2019-11-19 | 2023-12-05 | 中国石油天然气集团有限公司 | Short-time throttling pipe column and short-time throttling method |
| CN112360419B (en) * | 2020-11-16 | 2023-04-07 | 中国石油天然气股份有限公司 | Small-displacement energy supplementing and large-displacement fracturing continuous fracturing string and fracturing method |
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| US4499951A (en) * | 1980-08-05 | 1985-02-19 | Geo Vann, Inc. | Ball switch device and method |
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