CN116591644A - Hydraulic sand blasting perforation choke manifold - Google Patents
Hydraulic sand blasting perforation choke manifold Download PDFInfo
- Publication number
- CN116591644A CN116591644A CN202310872423.1A CN202310872423A CN116591644A CN 116591644 A CN116591644 A CN 116591644A CN 202310872423 A CN202310872423 A CN 202310872423A CN 116591644 A CN116591644 A CN 116591644A
- Authority
- CN
- China
- Prior art keywords
- pipe
- valve
- manifold
- throttle
- inlet pipe
- 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
- 238000005488 sandblasting Methods 0.000 title abstract description 16
- 239000007788 liquid Substances 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 15
- 210000004907 gland Anatomy 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000005422 blasting Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000002445 nipple Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 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
- E21B43/11—Perforators; Permeators
- E21B43/114—Perforators using direct fluid action on the wall to be perforated, e.g. abrasive jets
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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)
- Lift Valve (AREA)
Abstract
A hydraulic sand blasting perforation choke manifold relates to the technical field of hydraulic sand blasting of oil fields. The manifold comprises an inlet pipe, the inlet pipe is connected with four branch pipes in parallel through a manifold A, the other ends of the four branch pipes are connected with a manifold B in parallel, the manifold B is connected with an outlet pipe, two ball valves are installed on each branch pipe, a throttle valve is installed between the two ball valves, and the manifold A and the manifold B are fixed on a bottom pry through a pipe bracket. The beneficial effects of the invention are as follows: the device is provided with the driving mechanism, the throttle valve is driven to act by utilizing the change of the casing pressure, the throttle flow and the casing pressure are kept stable, when the perforation displacement is changed, the wellhead throttle flow can be changed by the rotatable screw rod, manual operation is not needed, the throttle effect is stable, the throttle valves connected with the branch pipes in parallel are arranged, when a certain throttle valve is maintained and replaced, the throttle valve can be replaced on line, the pump is not required to be stopped, the operation efficiency is improved, the throttle valves can play the throttle effect equally, the service life of the throttle valve is long, and the throttle valve can be replaced on line in operation.
Description
Technical Field
The invention relates to the technical field of hydraulic sand blasting in oil fields, in particular to a hydraulic sand blasting perforation choke manifold.
Background
At present, a choke manifold is applied to hydraulic sand blasting perforation, hydraulic sand blasting perforation operation is popularized and applied in a large area in a vertical well and a horizontal well, casing pressure needs to be controlled in the perforation process, a conventional choke well-killing manifold usually adopts a gate valve or a needle valve to throttle, and because the gate valve or the needle valve has poor erosion resistance, especially a small amount of perforation sand is carried in liquid returned by the casing during sand blasting perforation, the casing pressure is controlled inaccurately, the perforation sand is carried in the casing returned liquid during blowout after hydraulic sand blasting perforation and fracturing are finished, the erosion of the gate valve and the needle valve is serious, the hole pressing effect is poor, the throttle is carried out through a throttle nozzle at present, pumps are required to be stopped in the process when the nozzles are replaced during perforation displacement adjustment, and the operation efficiency is reduced.
Disclosure of Invention
In order to solve the problems that the existing choke manifold is poor in pressure control effect and low in operation efficiency when in sand blasting perforation, a hydraulic sand blasting perforation choke manifold is developed.
The technical scheme provided by the invention is as follows: the hydraulic sand blasting perforation choke manifold comprises a manifold and a driving mechanism, wherein the manifold comprises an inlet pipe, an outlet pipe, a gathering pipe A, a gathering pipe B and branch pipes, the inlet pipe is connected with four branch pipes in parallel through the gathering pipe A, the other ends of the four branch pipes are connected with the gathering pipe B in parallel, the gathering pipe B is connected with the outlet pipe, two ball valves are arranged on each branch pipe, a choke valve is arranged between the two ball valves, and the gathering pipe A and the gathering pipe B are fixed on a bottom pry through pipe brackets;
the driving mechanism comprises a cylinder sleeve, one side of the cylinder sleeve is provided with a sleeve pressure connecting pipe, the other side of the cylinder sleeve is connected with a gland through a bolt, a piston is arranged in the cylinder sleeve, the piston is connected with the cylinder sleeve through a sealing ring in a clearance fit manner on one side of the sleeve pressure connecting pipe, the upper side of the piston is fixedly connected with a driving shaft, a long hole is formed above the cylinder sleeve, the driving shaft extends out of the long hole to be fixedly connected with a connecting rod, and the cylinder sleeve and a branch pipe are arranged in parallel; the gland is fixedly connected with a collecting pipe B through a bracket, the center of the gland is in threaded connection with a lead screw, the lead screw is fixedly connected with a baffle in a cylinder sleeve, a compression spring is arranged between the baffle and a piston, a positioning column is arranged on the piston, and the compression spring is sleeved on the positioning column;
the throttle valve comprises valve pocket, feed liquor pipe and drain pipe, all passes through sealing washer clearance fit connection between valve pocket and feed liquor pipe, the drain pipe passes through the ball valve of flange sealing connection both sides, pass through backup pad fixed connection case in the valve pocket, the case is the cone head structure in feed liquor pipe one side, processing has the circular cone hole in the feed liquor pipe, the circular cone hole cover is in the cone head outside, circular cone hole and cone head conicity are the same, valve pocket upper portion fixed connection follower axle, four follower axles parallel connection are on the connecting rod.
The conical head and the conical hole are overlaid with a layer of wear-resistant welding rod.
The liquid inlet pipe is connected with a short section through a flange in a sealing way, and the short section is connected with a ball valve through the flange in a sealing way.
The beneficial effects of the invention are as follows: the device is provided with the driving mechanism, the throttle valve is driven to act by utilizing the change of the casing pressure, the throttle flow and the casing pressure are kept stable, when the perforation displacement is changed, the wellhead throttle flow can be changed by the rotatable screw rod, manual operation is not needed, the throttle effect is stable, the throttle valves connected with the branch pipes in parallel are arranged, when a certain throttle valve is maintained and replaced, the throttle valve can be replaced on line, the pump is not required to be stopped, the operation efficiency is improved, the throttle valves can play the throttle effect equally, the service life of the throttle valve is long, and the throttle valve can be replaced on line in operation.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a section A-A of FIG. 1;
FIG. 3 is a schematic diagram of the throttle valve of the present invention;
fig. 4 is a schematic structural view of the driving mechanism in the present invention.
In the figure, the device comprises a 1-outlet pipe, a 2-inlet pipe, a 3-collecting pipe B, a 4-branch pipe, a 5-ball valve, a 6-throttle valve, a 7-driving mechanism, an 8-connecting rod, a 9-bracket, a 10-sleeve pressure connecting pipe, an 11-valve sleeve, a 12-valve core, a 13-supporting plate, a 14-follow-up shaft, a 15-cylinder sleeve, a 16-piston, a 17-driving shaft, a 18-liquid inlet pipe, a 19-conical head, a 20-conical hole, a 21-gland, a 22-lead screw, a 23-baffle plate, a 24-compression spring, a 25-positioning column, a 26-liquid outlet pipe, a 27-collecting pipe A, a 28-long hole and a 29-short joint.
Detailed Description
As shown in fig. 1-4, the hydraulic sand blasting perforation choke manifold comprises a manifold and a driving mechanism 7, wherein the manifold comprises an inlet pipe 2, an outlet pipe 1, a collecting pipe A27, a collecting pipe B3 and branch pipes 4, the inlet pipe 2 is connected with four branch pipes 4 in parallel through the collecting pipe A27, the other ends of the four branch pipes 4 are connected with the collecting pipe B3 in parallel, the collecting pipe B3 is connected with the outlet pipe 1, two ball valves 5 are arranged on each branch pipe 4, a choke valve 6 is arranged between the two ball valves 5, and the collecting pipe A27 and the collecting pipe B3 are fixed on a bottom sled through a pipe bracket;
the driving mechanism 7 comprises a cylinder sleeve 15, one side of the cylinder sleeve 15 is provided with a sleeve pressure connecting pipe 10, the other side of the cylinder sleeve 15 is connected with a gland 21 through a bolt, a piston 16 is arranged in the cylinder sleeve 15, the piston 16 is connected with the cylinder sleeve 15 on one side of the sleeve pressure connecting pipe 10 through a sealing ring in a clearance fit manner, the upper side of the piston 16 is fixedly connected with a driving shaft 17, a long hole 28 is formed above the cylinder sleeve 15, the driving shaft 17 extends out of the long hole 28 to be fixedly connected with a connecting rod 8, and the cylinder sleeve 15 is arranged in parallel with the branch pipe 4; the gland 21 is fixedly connected with the collecting pipe B3 through the bracket 9, the center of the gland 21 is in threaded connection with the lead screw 22, the lead screw 22 is fixedly connected with the baffle 23 in the cylinder sleeve 15, a compression spring 24 is arranged between the baffle 23 and the piston 16, a positioning column 25 is arranged on the piston 16, and the compression spring 24 is sleeved on the positioning column 25;
the throttle valve 6 comprises a valve sleeve 11, a liquid inlet pipe 18 and a liquid outlet pipe 26, wherein the valve sleeve 11, the liquid inlet pipe 18 and the liquid outlet pipe 26 are connected through clearance fit of sealing rings, the liquid inlet pipe 18 and the liquid outlet pipe 26 are connected with ball valves 5 on two sides through flanges in a sealing mode, a valve core 12 is fixedly connected in the valve sleeve 11 through a supporting plate 13, the valve core 12 is in a conical head 19 structure on one side of the liquid inlet pipe 18, a conical hole 20 is machined in the liquid inlet pipe 18, the conical hole 20 is sleeved on the outer side of the conical head 19, the conical hole 20 and the conical head 19 have the same taper, the upper portion of the valve sleeve 11 is fixedly connected with a follow-up shaft 14, and the four follow-up shafts 14 are connected on the connecting rod 8 in parallel.
When the hydraulic sand blasting perforating device is used, the screw rod 22 is rotated, the screw rod 22 props against the compression spring 24 and the piston 16, the piston 16 is balanced under the set pressure of the casing pressure, the inlet pipe 2 is connected to a wellhead casing valve, the casing pressure connecting pipe 10 is connected to a casing pressure taking point, when the hydraulic sand blasting perforating is carried out, when the casing pressure rises, the piston 16 moves to one side of the gland 21 under the rising pressure, the driving shaft 17, the connecting rod 8, the follow-up shaft 14, the valve sleeve 11 and the valve core 12 are driven to be far away from the liquid inlet pipe 18, the distance between the conical head 19 and the conical hole 20 is pulled, the annular area between the conical head 19 and the conical hole 20 is increased, the liquid flow released from the casing is increased, so that the casing pressure is reduced, and when the casing pressure is reduced, the annular area between the conical head 19 and the conical hole 20 is reduced, so that the casing pressure is restored to the set value.
The driving mechanism 7 is arranged, the throttle valve 6 is driven to act by utilizing the change of the casing pressure, the throttle flow and the casing pressure are kept stable, when the perforation displacement is changed, the rotatable screw 22 can change the wellhead throttle flow, manual operation is not needed, the throttle effect is stable, the throttle valves 6 connected with the branch pipes 4 in parallel are arranged, when a certain throttle valve 6 is maintained and replaced, the online replacement is not needed, the pump stopping is not needed, the operation efficiency is improved, the throttle valves 6 can play the throttle effect, and the moving distance of the valve cores 12 of the throttle valves 6 is slightly larger when the ball valves 5 on the maintained branch pipes 4 are closed.
The conical head 19 and the conical hole 20 are overlaid with a layer of wear-resistant welding rod, so that the service life of the throttle valve 6 is prolonged.
The feed liquor pipe 18 passes through a nipple joint 29 of flange sealing connection, and nipple joint 29 passes through flange sealing connection ball valve 5, sets up nipple joint 29, can dismantle nipple joint 29 when one of them choke valve 6 maintenance is changed, leaves the space and breaks up choke valve 6 maintenance and change.
Claims (3)
1. A hydraulic blasting perforation choke manifold, comprising a manifold and a driving mechanism (7), characterized in that: the manifold comprises an inlet pipe (2), an outlet pipe (1), a collecting pipe A (27), a collecting pipe B (3) and branch pipes (4), wherein the inlet pipe (2) is connected with four branch pipes (4) in parallel through the collecting pipe A (27), the other ends of the four branch pipes (4) are connected with the collecting pipe B (3) in parallel, the collecting pipe B (3) is connected with the outlet pipe (1), two ball valves (5) are arranged on each branch pipe (4), a throttle valve (6) is arranged between the two ball valves (5), and the collecting pipe A (27) and the collecting pipe B (3) are fixed on the bottom pry through pipe brackets;
the driving mechanism (7) comprises a cylinder sleeve (15), a sleeve pressure connecting pipe (10) is arranged on one side of the cylinder sleeve (15), a pressing cover (21) is connected to the other side of the cylinder sleeve (15) through a bolt, a piston (16) is arranged in the cylinder sleeve (15), the piston (16) is connected with the cylinder sleeve (15) on one side of the sleeve pressure connecting pipe (10) through a sealing ring in a clearance fit manner, a driving shaft (17) is fixedly connected to the upper side of the piston (16), a long hole (28) is formed in the upper side of the cylinder sleeve (15), the driving shaft (17) extends out of the long hole (28) to be fixedly connected with a connecting rod (8), and the cylinder sleeve (15) is arranged in parallel with the branch pipe (4); the gland (21) is fixedly connected with the collecting pipe B (3) through the bracket (9), the center of the gland (21) is in threaded connection with the lead screw (22), the lead screw (22) is fixedly connected with the baffle (23) in the cylinder sleeve (15), a compression spring (24) is arranged between the baffle (23) and the piston (16), the piston (16) is provided with a positioning column (25), and the compression spring (24) is sleeved on the positioning column (25);
the throttle valve (6) comprises a valve sleeve (11), a liquid inlet pipe (18) and a liquid outlet pipe (26), wherein the valve sleeve (11), the liquid inlet pipe (18) and the liquid outlet pipe (26) are connected through clearance fit of a sealing ring, the liquid inlet pipe (18) and the liquid outlet pipe (26) are connected with ball valves (5) on two sides through flanges in a sealing mode, a valve core (12) is fixedly connected with the valve sleeve (11) through a supporting plate (13), the valve core (12) is in a conical head (19) structure on one side of the liquid inlet pipe (18), a conical hole (20) is machined in the liquid inlet pipe (18), the conical hole (20) is sleeved on the outer side of the conical head (19), the conical hole (20) is identical with the conical degree of the conical head (19), the upper portion of the valve sleeve (11) is fixedly connected with a follow-up shaft (14), and the four follow-up shafts (14) are connected with the connecting rod (8) in parallel.
2. A hydro-abrasive perforated choke manifold according to claim 1, characterized in that: the conical head (19) and the conical hole (20) are overlaid with a layer of wear-resistant welding rod.
3. A hydro-abrasive perforated choke manifold according to claim 1, characterized in that: the liquid inlet pipe (18) is connected with a short joint (29) through a flange in a sealing way, and the short joint (29) is connected with the ball valve (5) through the flange in a sealing way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310872423.1A CN116591644B (en) | 2023-07-17 | 2023-07-17 | Hydraulic sand blasting perforation choke manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310872423.1A CN116591644B (en) | 2023-07-17 | 2023-07-17 | Hydraulic sand blasting perforation choke manifold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116591644A true CN116591644A (en) | 2023-08-15 |
| CN116591644B CN116591644B (en) | 2023-09-19 |
Family
ID=87594067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310872423.1A Active CN116591644B (en) | 2023-07-17 | 2023-07-17 | Hydraulic sand blasting perforation choke manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116591644B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN116591644B (en) | 2023-09-19 |
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