CN110230470A - Electric-controlled hydraulic slot de-plugging reservoir reconstruction tool - Google Patents
Electric-controlled hydraulic slot de-plugging reservoir reconstruction tool Download PDFInfo
- Publication number
- CN110230470A CN110230470A CN201910513835.XA CN201910513835A CN110230470A CN 110230470 A CN110230470 A CN 110230470A CN 201910513835 A CN201910513835 A CN 201910513835A CN 110230470 A CN110230470 A CN 110230470A
- Authority
- CN
- China
- Prior art keywords
- spray gun
- pipe nipple
- nozzle
- gun pipe
- valve seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 210000002445 nipple Anatomy 0.000 claims abstract description 34
- 239000007921 spray Substances 0.000 claims abstract description 31
- 238000011010 flushing procedure Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 229920001342 Bakelite® Polymers 0.000 claims abstract description 8
- 239000004637 bakelite Substances 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000005056 compaction Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
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)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of electric-controlled hydraulic slot de-plugging reservoir reconstruction tools that slot operation can be carried out to oil reservoir, including the reservoir reconstruction valve being connected with oil pipe, reservoir reconstruction valve includes a casing valve seat, a sliding sleeve is fixedly installed in the centre bore of casing valve seat, the sliding sleeve end face outside indent of close oil pipe is simultaneously equipped with a bakelite ball, the lower end of casing valve seat by nipple it is coaxially connected a spray gun pipe nipple, it is uniformly distributed on the axial periphery wall of spray gun pipe nipple and wiper block is set, there is central passage in spray gun pipe nipple, a nozzle is respectively set on the spray gun pipe nipple of wiper block front and rear sides, two nozzles are in 90 degree of angles between each other, the lower end of spray gun pipe nipple is connected to well-flushing guide shoe by nipple, the lower end closed of well-flushing guide shoe, a backwash channel is arranged in well-flushing guide shoe central axis, backwash channel Liquid feeding end one steel ball is set, there are four liquid outlets for backwash channel tool.
Description
Technical field
The present invention relates to a kind of electric-controlled hydraulic slot de-plugging reservoir reconstruction works that slot operation can be carried out to oil reservoir
Tool.
Background technique
In the production operation of oil field, in order to increase the permeability of pit shaft surrounding formation, be often required to the stratum of nearly well band into
Row injection high pressure water flow is cut.Existing routine cutting tool, there are what perforating depth deficiency, perforation compaction band polluted to ask
Topic, generated crack is not easy to control, and increasing yield and injection effect is unobvious.And the erosion of water flow gravel is often to casing and cement
Ring causes very big impact, destruction.
Summary of the invention
The purpose of the present invention is to provide a kind of electric-controlled hydraulic slot de-plugging reservoir reconstruction tools, are able to solve perforating depth
The problem of insufficient, perforation compaction band pollutes, while increasing seepage area, construction is simple, cost is relatively low, and generated crack is easy
In control, while increasing yield and injection effect is obvious.
The object of the present invention is achieved like this, a kind of electric-controlled hydraulic slot de-plugging reservoir reconstruction tool, including with oil pipe
Connected reservoir reconstruction valve, reservoir reconstruction valve include a casing valve seat, pass through one and casing in the centre bore of casing valve seat
A sliding sleeve is fixedly installed in the perpendicular shear pin of valve seat, and the centre bore of casing valve seat is located at the coaxially arranged relief hole of shear pin
In the tube wall of the other side, sliding sleeve center has the central through hole coaxially arranged with casing valve base center hole, outside the sliding sleeve of oil pipe
Side end face indent is simultaneously equipped with a bakelite ball, and the diameter of bakelite ball is greater than the aperture of the central through hole；The lower end of casing valve seat
By nipple it is coaxially connected a spray gun pipe nipple, be uniformly distributed on the axial periphery wall of spray gun pipe nipple and righting be set
Block, spray gun pipe nipple is interior to have central passage, and a nozzle, two sprays are respectively set on the spray gun pipe nipple of wiper block front and rear sides
Mouth is in 90 degree of angles between each other, and the nozzle chamber is in cone, passes through threaded coaxial in the spray gun pipe nipple of upper end of nozzle
One nozzle pressure cap is installed, vertically arranged a groove respectively on the opposite two sides inner wall of the centre bore of nozzle pressure cap, spray
The centre bore aperture of mouth pressure cap is that spacing between 10mm, grooves on two sides is 80mm, in nozzle the high pressure with 25Mpa make from
The high-pressure fluid containing sand sprayed in nozzle forms wide 10mm, high 80mm, depth 1500mm, the slit for being mutually 90 degree near wellbore zone；
The lower end of spray gun pipe nipple is connected to well-flushing guide shoe, the lower end closed of well-flushing guide shoe, well-flushing guide shoe central axis by nipple
One backwash channel is set, the liquid feeding end in backwash channel is arranged a steel ball, and backwash channel tool is there are four liquid outlet, and four
Liquid outlet is respectively uniformly distributed on the closed end that well-flushing guide shoe is arranged in.
Technical solution of the present invention is compared with prior art: 1, spraying high pressure sand-laden fluid body on casing and near wellbore zone rock
Cut certain amount slit.With spray gun pipe nipple near wellbore cut many cracks, remove well week pollution, can effective de-plugging, reach
To increasing yield and injection purpose；
2, it wears and penetrates that depth is big, and drainage area is big.Change the seepage state of fluid and increases the seepage area of oil gas in the earth formation,
The cleavable depth in stratum reaches 1.5m, and drainage area greatly improves, while avoiding the compacting contaminated zone of conventional perforation；
3, it is suitable for thin reservoir oil reservoir, in low permeability pay area slot, shut off high oil seepage layer, realizes reservoir reconstruction purpose；
4, unconventional shale and the pretreatment of tight sandstone reservoir pressure break, control fracturing fracture are moved towards in the earth formation, are greatly reduced brokenly
Split pressure, yield greatly improve；
5, accurate positioning, transformation are controllable.Accurate reservoir reconstruction can be carried out to the thin layer that other measures are difficult to carry out by once going into the well；
6, bakelite ball is put into, reservoir reconstruction valve is opened, reservoir reconstruction agent can be pumped into oil layer section, improves flow through oil reservoir channel；
7, tool slot direction is adjustable, and slot length is controllable, can realize the transformation of multistage slot by upper lifting pipe post；
8, during slot, if there are complex situations, backwash well operations can be carried out by well-flushing guide shoe；
9, it can realize that multistage slot, spray gun pipe nipple carry wiper block by increasing spray gun pipe nipple quantity, it can be ensured that tool sprays between two parties
Sand, cutting gap are regular.
The tool is using the highly pressurised liquid containing sand by forming high-speed jet after the nozzle of spray gun pipe nipple, in water flow and
Under gravel high speed impact, by casing and surrounding rock stratum along axial incision, it is high that multipair width about 10mm, seam finally are formed near wellbore zone
80mm, seam depth 1500mm, mutual slit in 90 °, and tubing string can be promoted according to reservoir thickness and cut many cracks, to reach increasing
Add pit shaft surrounding formation permeability, improve the filtrational resistance of nearly well band and the purpose of increasing yield and injection.For conventional perforation,
The problem of which solve perforating depth deficiency, perforation compaction band and pollutions, while seepage area is increased, with respect to hydraulic fracturing
Speech, construction is simple, cost is relatively low, and generated crack is easily controllable, while increasing yield and injection effect is obvious.Utilize water flow gravel
Erosion effect, the impact to casing and cement sheath, destruction can be effectively reduced, avoid conventional cannula perforation completion
Injury to cement sheath.The medicaments such as reservoir reconstruction agent improvement flow through oil reservoir item can be injected to stratum by opening reservoir reconstruction valve
Part.
Detailed description of the invention
Below in conjunction with attached drawing, the present invention is described in further detail.
Fig. 1 is main view the schematic diagram of the section structure of the invention；
Partial enlargement structural representation in Fig. 2 Fig. 1 at nozzle；
Fig. 3 is the overlooking structure diagram of nozzle pressure cap of the present invention；
Fig. 4 is well head mounting connection structure schematic diagram of the present invention.
Specific embodiment
A kind of electric-controlled hydraulic slot de-plugging reservoir reconstruction tool, as shown in Figure 1, Figure 2, Figure 3 shows, including what is be connected with oil pipe 13
Reservoir reconstruction valve, reservoir reconstruction valve include a casing valve seat 25, pass through one and casing valve in the centre bore of casing valve seat 25
A sliding sleeve 1 is fixedly installed in the perpendicular shear pin 11 of seat, and the relief hole 2 coaxially arranged with shear pin is located at the center of casing valve seat
In the tube wall of the hole other side, sliding sleeve center has the central through hole coaxially arranged with casing valve base center hole, close to the sliding sleeve of oil pipe
End face outside indent is simultaneously equipped with a bakelite ball 12, and the diameter of bakelite ball 12 is greater than the aperture of the central through hole.
The lower end of casing valve seat 25 by nipple it is coaxially connected a spray gun pipe nipple 10, the axial direction of spray gun pipe nipple 10
It is uniformly distributed on periphery wall and wiper block 6 is set, there is central passage, the spray gun pipe nipple of wiper block front and rear sides in spray gun pipe nipple
On be respectively set a nozzle 3, two nozzles 3 are in 90 degree angles between each other, and 3 inner cavity of nozzle is sprayed in cone
A nozzle pressure cap 4, the opposite two sides of the centre bore of nozzle pressure cap 4 are installed with by threaded coaxial in the spray gun pipe nipple of mouth upper end
Vertically arranged a groove 35 is distinguished on inner wall, between 5 aperture of centre bore of nozzle pressure cap is between 10mm, grooves on two sides 35
Away from for 80mm, the high pressure in nozzle with 25Mpa makes the high-pressure fluid containing sand sprayed out of nozzle form width near wellbore zone
10mm, high 80mm, depth 1500mm, the slit for being mutually 90 degree.
The lower end of spray gun pipe nipple is connected to well-flushing guide shoe 7, the lower end closed of well-flushing guide shoe, well-flushing guide shoe by nipple
A backwash channel 9 is arranged in central axis, and a steel ball 8 is arranged in the liquid feeding end in backwash channel, and there are four backwash channel tools
Liquid outlet, four liquid outlets are respectively uniformly distributed on the closed end that well-flushing guide shoe is arranged in.
As shown in figure 4, the present invention pacifies in use, 13 upper end of oil pipe at well-mouth operating floor 14 is passed through hydraulic pressure lifting device 15
On elevator 16, the balanced valve 18 for being equipped with oil inlet 17, oil return opening 19, balanced valve 18 is arranged in 15 side of hydraulic pressure lifting device
It is connected by oil circuit pipeline 20 with hydraulic station 21, hydraulic pressure lifting device 15 is driven to carry out lift work to oil pipe 13.
Claims (1)
1. a kind of electric-controlled hydraulic slot de-plugging reservoir reconstruction tool, including the reservoir reconstruction valve being connected with oil pipe, it is characterized in that: storage
Layer transformation valve includes a casing valve seat, is fixed in the centre bore of casing valve seat by a shear pin perpendicular with casing valve seat
One sliding sleeve is set, is located in the centre bore other side tube wall of casing valve seat with the coaxially arranged relief hole of shear pin, in sliding sleeve
The heart has the central through hole coaxially arranged with casing valve base center hole, and the sliding sleeve end face outside indent of close oil pipe is simultaneously equipped with one
Bakelite ball, the diameter of bakelite ball are greater than the aperture of the central through hole；The lower end of casing valve seat is coaxially connected by nipple
A spray gun pipe nipple, be uniformly distributed on the axial periphery wall of spray gun pipe nipple and wiper block be set, there is center in spray gun pipe nipple
A nozzle is respectively set on the spray gun pipe nipple of wiper block front and rear sides in channel, and two nozzles are in 90 degree of angles between each other,
For the nozzle chamber in cone, the spray gun pipe nipple of upper end of nozzle is interior to be installed with a nozzle pressure cap by threaded coaxial, sprays
Vertically arranged a groove, the centre bore aperture of nozzle pressure cap are distinguished on the opposite two sides inner wall of the centre bore of mouth pressure cap is
Spacing between 10mm, grooves on two sides is 80mm, and the high pressure with 25Mpa makes the high pressure containing sand sprayed out of nozzle in nozzle
Fluid forms wide 10mm, high 80mm, depth 1500mm, the slit for being mutually 90 degree near wellbore zone；The lower end of spray gun pipe nipple passes through spiral shell
Line connector is connected to well-flushing guide shoe, the lower end closed of well-flushing guide shoe, and a backwash channel is arranged in well-flushing guide shoe central axis, instead
A steel ball is arranged in the liquid feeding end for washing channel, and there are four liquid outlet, four liquid outlets are respectively uniformly distributed and set backwash channel tool
It sets on the closed end of well-flushing guide shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910513835.XA CN110230470B (en) | 2019-06-14 | 2019-06-14 | Electric control hydraulic slotting blockage removing reservoir stratum transformation tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910513835.XA CN110230470B (en) | 2019-06-14 | 2019-06-14 | Electric control hydraulic slotting blockage removing reservoir stratum transformation tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110230470A true CN110230470A (en) | 2019-09-13 |
| CN110230470B CN110230470B (en) | 2020-11-27 |
Family
ID=67859850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910513835.XA Active CN110230470B (en) | 2019-06-14 | 2019-06-14 | Electric control hydraulic slotting blockage removing reservoir stratum transformation tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110230470B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066000A (en) * | 2021-11-03 | 2023-05-05 | 中国石油天然气股份有限公司 | Casing sand blasting, slotting and cavity making tubular column and shaping operation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201090188Y (en) * | 2007-09-18 | 2008-07-23 | 中国石油天然气股份有限公司 | Fixedly tubular pile delamination hydraulic jet perforating and compression fracture integration tubular pile |
| CN102493791A (en) * | 2007-12-14 | 2012-06-13 | 中国石油大学(北京) | Abrasive material jet injection device |
| CN202441355U (en) * | 2012-01-16 | 2012-09-19 | 华鼎鸿基石油工程技术(北京)有限公司 | Staged fracturing tool of U type oil-gas well |
| US20120305265A1 (en) * | 2009-11-06 | 2012-12-06 | Weatherford/Lamb, Inc. | Cluster Opening Sleeves for Wellbore |
| CN102979497A (en) * | 2012-11-20 | 2013-03-20 | 中国石油大学(北京) | Device and method for immovable-string type packer-free sliding-sleeve hydraulic-jet pulsed acid fracturing |
| CN206035458U (en) * | 2016-09-24 | 2017-03-22 | 程鹏 | Clear hole of hydraulic jet pierces through device |
-
2019
- 2019-06-14 CN CN201910513835.XA patent/CN110230470B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201090188Y (en) * | 2007-09-18 | 2008-07-23 | 中国石油天然气股份有限公司 | Fixedly tubular pile delamination hydraulic jet perforating and compression fracture integration tubular pile |
| CN102493791A (en) * | 2007-12-14 | 2012-06-13 | 中国石油大学(北京) | Abrasive material jet injection device |
| US20120305265A1 (en) * | 2009-11-06 | 2012-12-06 | Weatherford/Lamb, Inc. | Cluster Opening Sleeves for Wellbore |
| CN202441355U (en) * | 2012-01-16 | 2012-09-19 | 华鼎鸿基石油工程技术(北京)有限公司 | Staged fracturing tool of U type oil-gas well |
| CN102979497A (en) * | 2012-11-20 | 2013-03-20 | 中国石油大学(北京) | Device and method for immovable-string type packer-free sliding-sleeve hydraulic-jet pulsed acid fracturing |
| CN206035458U (en) * | 2016-09-24 | 2017-03-22 | 程鹏 | Clear hole of hydraulic jet pierces through device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066000A (en) * | 2021-11-03 | 2023-05-05 | 中国石油天然气股份有限公司 | Casing sand blasting, slotting and cavity making tubular column and shaping operation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110230470B (en) | 2020-11-27 |
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