CN113494252B - Reverse circulation sand removal sand collector and use method thereof - Google Patents
Reverse circulation sand removal sand collector and use method thereof Download PDFInfo
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- CN113494252B CN113494252B CN202010259173.0A CN202010259173A CN113494252B CN 113494252 B CN113494252 B CN 113494252B CN 202010259173 A CN202010259173 A CN 202010259173A CN 113494252 B CN113494252 B CN 113494252B
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- 239000004576 sand Substances 0.000 title claims abstract description 195
- 238000000034 method Methods 0.000 title claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 63
- 238000004140 cleaning Methods 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims description 67
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims 3
- 238000003756 stirring Methods 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- 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
- E21B27/00—Containers for collecting or depositing substances in boreholes or wells, e.g. bailers, baskets or buckets for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The invention discloses a reverse circulation sand removal sand collector and a use method thereof, wherein the reverse circulation sand removal sand collector comprises an upper joint, an upper adapter joint, an outer cylinder, a lower adapter joint, a lower joint, an umbrella-shaped cap, an upper joint of an inner cylinder, a lower joint of the inner cylinder and a plug; the upper connector, the upper adapter connector, the outer barrel, the lower adapter connector and the lower connector are connected in sequence; a vertical through hole for circulating sand mixing liquid is formed in the middle of the upper adapter; the inner cylinder upper joint, the inner cylinder and the inner cylinder lower joint are sequentially connected; a transverse sand outlet is formed in the middle of the upper joint of the inner cylinder; the inner barrel lower connector is directly inserted into the middle through hole of the lower adapter connector; the upper end of the screwed plug is connected with the lower joint of the inner cylinder, the lower part of the screwed plug hooks the lower adapter joint through a step, and a through hole which is convenient for the sand mixing liquid to pass through is formed in the middle of the screwed plug. The invention can efficiently collect well sand and prevent sand cleaning tools from being blocked; can deposit sand fast and is convenient for unloading sand and cleaning on the ground.
Description
Technical Field
The invention relates to the technical field of oilfield workover, in particular to a reverse circulation sand removal sand collector and a use method thereof.
Background
The problem of sand production from wells is always one of the problems to be solved urgently in the petroleum exploitation industry. During oil recovery, sand in the formation is carried along with the flow of oil or gas into the wellbore, and formation collapse often occurs particularly in the case of open hole completions. Since the sand has a density greater than that of oil and water, the gradually deposited sand may block the oil outlet passage. Sand in the production fluid may also abrade or damage the downhole equipment. The phenomenon of sand production of oil wells in domestic oil fields exists commonly, so that the cleaning of sand in the oil wells is an important work in well repair operation.
Currently, a jet pump is generally used for a partial reverse circulation sand removal process. For example: the technical scheme of the pulse jet pump for sand flushing and a shaft cleaning device is that the pulse jet pump for sand flushing comprises a high-pressure nozzle, an outer barrel, a diffusion pipe and a stirring nozzle, wherein the diffusion pipe and the stirring nozzle are arranged in the outer barrel, the diffusion pipe is connected with the stirring nozzle, the high-pressure nozzle is connected with one port of the outer barrel, a high-pressure cavity is formed between the high-pressure nozzle and the stirring nozzle, and a first self-excitation oscillation cavity is also formed between an inlet and an outlet of the high-pressure nozzle; the self-oscillation nozzle is also included; the self-oscillation nozzle is arranged between the diffusion pipe and the stirring nozzle, and a second self-oscillation cavity is formed between the self-oscillation nozzle and the stirring nozzle; the inlet of the high-pressure nozzle is of a horn mouth structure; a sand control screen is arranged between the diffusion pipe and the self-oscillation nozzle, and the stirring nozzle is positioned in the sand control screen. The patent also provides a wellbore cleaning device comprising a jet pump, a concentric coiled tubing, a gas lift system, a three-phase separation device, a monitoring device and a controller; the jet pump adopts the pulse jet pump for flushing sand and well, the concentric continuous oil pipe comprises an outer pipe and an inner pipe arranged in the outer pipe, the outer pipe is connected with the outer barrel of the jet pump, and the inner pipe is connected with the diffusion pipe of the jet pump; the gas lift system comprises a liquid nitrogen vehicle, an air flow nozzle and a guide pipeline, wherein the liquid nitrogen vehicle is connected with the air flow nozzle through the guide pipeline, and the air flow nozzle is positioned in the inner pipe; the three-phase separation device comprises a separation box, an inlet pipe, an exhaust pipe, an oil discharge pipe and an exhaust pipe, wherein the inlet pipe, the exhaust pipe, the oil discharge pipe and the exhaust pipe are connected to the separation box; the monitoring device comprises a pressure type material level sensor and an ultrasonic sensor which are respectively connected with the controller; the exhaust direction of the air flow nozzle is upward along the inner pipe.
The process of carrying out local reverse circulation sand removal by using the jet pump has a certain sand removal effect, but the sand is found to cause abrasion of the jet pump in production practice, and large-particle sand also causes blockage of sand removal tools.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a reverse circulation sand removal sand collector which can efficiently collect well sand and prevent a sand removal tool from being blocked.
The technical proposal is as follows: the device comprises an upper joint, an upper adapter joint, an outer cylinder, a lower adapter joint, a lower joint, an umbrella-shaped cap, an upper joint of an inner cylinder, a lower joint of the inner cylinder and a plug; the upper joint is connected with the drill rod or the oil pipe through an upper end female buckle, the lower end female buckle of the upper joint is meshed with the upper end male buckle of the upper switching joint, the upper end female buckle of the outer barrel is meshed with the lower end male buckle of the upper switching joint, the lower end female buckle of the outer barrel is meshed with the upper end male buckle of the lower switching joint, the upper end female buckle of the lower joint is meshed with the lower end male buckle of the lower switching joint, and the lower end of the lower joint is provided with a male buckle; the upper adapter joint is provided with an upper threaded blind hole and a lower threaded blind hole, and a vertical through hole for circulating sand mixing liquid is formed in the middle of the upper adapter joint; the umbrella-shaped cap is screwed into the threaded blind hole at the upper end of the upper adapter joint; the upper end of the upper joint of the inner cylinder is screwed into a threaded blind hole at the lower end of the upper adapter, and a transverse sand outlet hole is formed in the middle of the upper joint of the inner cylinder; the upper male buckle of the inner cylinder is meshed with the lower female buckle of the upper joint of the inner cylinder, and the lower male buckle of the inner cylinder is meshed with the upper female buckle of the lower joint of the inner cylinder; the inner barrel lower connector is directly inserted into the middle through hole of the lower adapter connector; the upper male buckle of the plug is meshed with the lower female buckle of the lower connector of the inner barrel, the lower adapter connector is hooked by the step arranged on the lower portion of the plug, and a through hole which is convenient for the sand mixing liquid to pass through is formed in the middle of the plug.
The above technical scheme can be further optimized as:
The number of the vertical through holes of the upper adapter is three.
The number of the transverse sand outlet holes of the upper joint of the inner cylinder is four.
The top end of the umbrella-shaped cap is conical.
The middle part of the upper joint is provided with a groove-shaped elevator.
The upper end and the lower end of the upper adapter are respectively provided with a sealing ring installing groove for installing a sealing ring, and the sealing ring installing grooves are respectively used for sealing between the upper adapter and between the upper adapter and the outer cylinder.
The upper end and the lower end of the lower adapter are respectively provided with a sealing ring groove for installing a sealing ring, and the sealing grooves are respectively used for sealing between the lower adapter and the outer cylinder and between the lower adapter and the lower adapter.
The sealing ring is an O-shaped sealing ring.
The O-shaped sealing ring is made of rubber.
Compared with the prior art, the invention has the following remarkable technical effects:
1. The main structure of the invention is divided into an inner layer and an outer layer, the middle runner is used for circulating sand mixing liquid, and the outer layer annulus is used for storing gravel, so that the well sand can be efficiently collected, and the sand cleaning tool is prevented from being blocked.
2. Can deposit sand fast and is convenient for unloading sand and cleaning on the ground.
3. Reasonable structure and durability.
4. The manufacturing cost is low.
5. Has good popularization and application value.
Drawings
FIG. 1 is a schematic diagram of the structure of the invention;
FIG. 2 is a schematic view of section A-A of FIG. 1;
FIG. 3 is a schematic view of B-B in FIG. 1;
In the figure: the device comprises a 1-upper connector, a 2-umbrella-shaped cap, a 3-upper adapter, a 4-sealing ring groove, a 5-inner cylinder upper connector, a 6-outer cylinder, a 7-inner cylinder, an 8-lower adapter, a 9-inner cylinder lower connector, a 10-plug, a 11-lower connector, a 12-groove-shaped elevator, a 13-vertical through hole, a 14-transverse sand outlet and a 15-step.
Detailed Description
The present invention will be described in detail with reference to the following examples and drawings.
Example 1
See fig. 1,2 and 3. A reverse circulation sand-cleaning sand collector comprises an upper joint 1, an upper adapter joint 3, an outer cylinder 6, a lower adapter joint 8, a lower joint 11, an umbrella-shaped cap 2, an inner cylinder upper joint 5, an inner cylinder 7, an inner cylinder lower joint 9 and a plug 10. The upper joint 1 is connected with a drill rod or an oil pipe through an upper end female buckle, the lower end female buckle of the upper joint 1 is meshed with the upper end male buckle of the upper adapter 3, the upper end female buckle of the outer cylinder 6 is meshed with the lower end male buckle of the upper adapter 3, the lower end female buckle of the outer cylinder 6 is meshed with the upper end male buckle of the lower adapter 8, the upper end female buckle of the lower adapter 11 is meshed with the lower end male buckle of the lower adapter 8, and the lower end of the lower adapter 11 is provided with a male buckle. The upper adapter 3 is provided with an upper threaded blind hole and a lower threaded blind hole, and a vertical through hole 13 for circulating sand mixing liquid is arranged in the middle of the upper adapter 3. The umbrella-shaped cap 2 is screwed into the threaded blind hole at the upper end of the upper adapter joint 3. The upper end of the upper inner cylinder connector 5 is screwed into a threaded blind hole at the lower end of the upper adapter connector 3, and a transverse sand outlet hole 14 is formed in the middle of the upper inner cylinder connector 5. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the upper joint 5 of the inner cylinder, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the lower joint 9 of the inner cylinder. The inner cylinder lower connector 9 is directly inserted into the middle through hole of the lower adapter connector 8. The male buckle at the upper end of the plug 10 is meshed with the female buckle at the lower end of the lower joint 9 of the inner cylinder, the lower part of the plug 10 hooks the lower adapter joint 8 through a step 15 arranged on the lower part of the plug, and a through hole which is convenient for sand mixing liquid to pass through is arranged in the middle of the plug 10.
Example 2
See fig. 1,2 and 3. A reverse circulation sand-cleaning sand collector comprises an upper joint 1, an upper adapter joint 3, an outer cylinder 6, a lower adapter joint 8, a lower joint 11, an umbrella-shaped cap 2, an inner cylinder upper joint 5, an inner cylinder 7, an inner cylinder lower joint 9 and a plug 10. The upper joint 1 is connected with a drill rod or an oil pipe through an upper end female buckle, the lower end female buckle of the upper joint 1 is meshed with the upper end male buckle of the upper adapter 3, the upper end female buckle of the outer cylinder 6 is meshed with the lower end male buckle of the upper adapter 3, the lower end female buckle of the outer cylinder 6 is meshed with the upper end male buckle of the lower adapter 8, the upper end female buckle of the lower adapter 11 is meshed with the lower end male buckle of the lower adapter 8, and the lower end of the lower adapter 11 is provided with a male buckle. The upper adapter 3 is provided with an upper threaded blind hole and a lower threaded blind hole, and a vertical through hole 13 for circulating sand mixing liquid is arranged in the middle of the upper adapter 3. The umbrella-shaped cap 2 is screwed into the threaded blind hole at the upper end of the upper adapter joint 3. The upper end of the upper inner cylinder connector 5 is screwed into a threaded blind hole at the lower end of the upper adapter connector 3, and a transverse sand outlet hole 14 is formed in the middle of the upper inner cylinder connector 5. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the upper joint 5 of the inner cylinder, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the lower joint 9 of the inner cylinder. The inner cylinder lower connector 9 is directly inserted into the middle through hole of the lower adapter connector 8. The male buckle at the upper end of the plug 10 is meshed with the female buckle at the lower end of the lower joint 9 of the inner cylinder, the lower part of the plug 10 hooks the lower adapter joint 8 through a step 15 arranged on the lower part of the plug, and a through hole which is convenient for sand mixing liquid to pass through is arranged in the middle of the plug 10.
The number of the vertical through holes 13 of the upper adapter connector 3 is three to ensure that the sand mixing liquid smoothly passes through.
Example 3
See fig. 1,2 and 3. A reverse circulation sand-cleaning sand collector comprises an upper joint 1, an upper adapter joint 3, an outer cylinder 6, a lower adapter joint 8, a lower joint 11, an umbrella-shaped cap 2, an inner cylinder upper joint 5, an inner cylinder 7, an inner cylinder lower joint 9 and a plug 10. The upper joint 1 is connected with a drill rod or an oil pipe through an upper end female buckle, the lower end female buckle of the upper joint 1 is meshed with the upper end male buckle of the upper adapter 3, the upper end female buckle of the outer cylinder 6 is meshed with the lower end male buckle of the upper adapter 3, the lower end female buckle of the outer cylinder 6 is meshed with the upper end male buckle of the lower adapter 8, the upper end female buckle of the lower adapter 11 is meshed with the lower end male buckle of the lower adapter 8, and the lower end of the lower adapter 11 is provided with a male buckle. The upper adapter 3 is provided with an upper threaded blind hole and a lower threaded blind hole, and a vertical through hole 13 for circulating sand mixing liquid is arranged in the middle of the upper adapter 3. The umbrella-shaped cap 2 is screwed into the threaded blind hole at the upper end of the upper adapter joint 3. The upper end of the upper inner cylinder connector 5 is screwed into a threaded blind hole at the lower end of the upper adapter connector 3, and a transverse sand outlet hole 14 is formed in the middle of the upper inner cylinder connector 5. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the upper joint 5 of the inner cylinder, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the lower joint 9 of the inner cylinder. The inner cylinder lower connector 9 is directly inserted into the middle through hole of the lower adapter connector 8. The male buckle at the upper end of the plug 10 is meshed with the female buckle at the lower end of the lower joint 9 of the inner cylinder, the lower part of the plug 10 hooks the lower adapter joint 8 through a step 15 arranged on the lower part of the plug, and a through hole which is convenient for sand mixing liquid to pass through is arranged in the middle of the plug 10.
The number of the vertical through holes 13 of the upper adapter connector 3 is three to ensure that the sand mixing liquid smoothly passes through.
The number of the transverse sand outlet holes 14 of the upper joint 5 of the inner cylinder is four, so that smooth sand outlet is ensured.
Example 4
See fig. 1,2 and 3. A reverse circulation sand-cleaning sand collector comprises an upper joint 1, an upper adapter joint 3, an outer cylinder 6, a lower adapter joint 8, a lower joint 11, an umbrella-shaped cap 2, an inner cylinder upper joint 5, an inner cylinder 7, an inner cylinder lower joint 9 and a plug 10. The upper joint 1 is connected with a drill rod or an oil pipe through an upper end female buckle, the lower end female buckle of the upper joint 1 is meshed with the upper end male buckle of the upper adapter 3, the upper end female buckle of the outer cylinder 6 is meshed with the lower end male buckle of the upper adapter 3, the lower end female buckle of the outer cylinder 6 is meshed with the upper end male buckle of the lower adapter 8, the upper end female buckle of the lower adapter 11 is meshed with the lower end male buckle of the lower adapter 8, and the lower end of the lower adapter 11 is provided with a male buckle. The upper adapter 3 is provided with an upper threaded blind hole and a lower threaded blind hole, and a vertical through hole 13 for circulating sand mixing liquid is arranged in the middle of the upper adapter 3. The umbrella-shaped cap 2 is screwed into the threaded blind hole at the upper end of the upper adapter joint 3. The upper end of the upper inner cylinder connector 5 is screwed into a threaded blind hole at the lower end of the upper adapter connector 3, and a transverse sand outlet hole 14 is formed in the middle of the upper inner cylinder connector 5. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the upper joint 5 of the inner cylinder, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the lower joint 9 of the inner cylinder. The inner cylinder lower connector 9 is directly inserted into the middle through hole of the lower adapter connector 8. The male buckle at the upper end of the plug 10 is meshed with the female buckle at the lower end of the lower joint 9 of the inner cylinder, the lower part of the plug 10 hooks the lower adapter joint 8 through a step 15 arranged on the lower part of the plug, and a through hole which is convenient for sand mixing liquid to pass through is arranged in the middle of the plug 10.
The number of the vertical through holes 13 of the upper adapter connector 3 is three to ensure that the sand mixing liquid smoothly passes through.
The number of the transverse sand outlet holes 14 of the upper joint 5 of the inner cylinder is four, so that smooth sand outlet is ensured.
The top end of the umbrella-shaped cap 2 is conical, so that the gravel is prevented from being accumulated at the upper end of the upper adapter 3 during sand setting to cause blockage.
Example 5
See fig. 1,2 and 3. A reverse circulation sand-cleaning sand collector comprises an upper joint 1, an upper adapter joint 3, an outer cylinder 6, a lower adapter joint 8, a lower joint 11, an umbrella-shaped cap 2, an inner cylinder upper joint 5, an inner cylinder 7, an inner cylinder lower joint 9 and a plug 10. The upper joint 1 is connected with a drill rod or an oil pipe through an upper end female buckle, the lower end female buckle of the upper joint 1 is meshed with the upper end male buckle of the upper adapter 3, the upper end female buckle of the outer cylinder 6 is meshed with the lower end male buckle of the upper adapter 3, the lower end female buckle of the outer cylinder 6 is meshed with the upper end male buckle of the lower adapter 8, the upper end female buckle of the lower adapter 11 is meshed with the lower end male buckle of the lower adapter 8, and the lower end of the lower adapter 11 is provided with a male buckle. The upper adapter 3 is provided with an upper threaded blind hole and a lower threaded blind hole, and a vertical through hole 13 for circulating sand mixing liquid is arranged in the middle of the upper adapter 3. The umbrella-shaped cap 2 is screwed into the threaded blind hole at the upper end of the upper adapter joint 3. The upper end of the upper inner cylinder connector 5 is screwed into a threaded blind hole at the lower end of the upper adapter connector 3, and a transverse sand outlet hole 14 is formed in the middle of the upper inner cylinder connector 5. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the upper joint 5 of the inner cylinder, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the lower joint 9 of the inner cylinder. The inner cylinder lower connector 9 is directly inserted into the middle through hole of the lower adapter connector 8. The male buckle at the upper end of the plug 10 is meshed with the female buckle at the lower end of the lower joint 9 of the inner cylinder, the lower part of the plug 10 hooks the lower adapter joint 8 through a step 15 arranged on the lower part of the plug, and a through hole which is convenient for sand mixing liquid to pass through is arranged in the middle of the plug 10.
The number of the vertical through holes 13 of the upper adapter connector 3 is three to ensure that the sand mixing liquid smoothly passes through.
The number of the transverse sand outlet holes 14 of the upper joint 5 of the inner cylinder is four, so that smooth sand outlet is ensured.
The top end of the umbrella-shaped cap 2 is conical, so that the gravel is prevented from being accumulated at the upper end of the upper adapter 3 during sand setting to cause blockage.
The middle part of the upper joint 1 is provided with a groove-shaped elevator 12 so as to facilitate hoisting.
Example 6
See fig. 1,2 and 3. A reverse circulation sand-cleaning sand collector comprises an upper joint 1, an upper adapter joint 3, an outer cylinder 6, a lower adapter joint 8, a lower joint 11, an umbrella-shaped cap 2, an inner cylinder upper joint 5, an inner cylinder 7, an inner cylinder lower joint 9 and a plug 10. The upper joint 1 is connected with a drill rod or an oil pipe through an upper end female buckle, the lower end female buckle of the upper joint 1 is meshed with the upper end male buckle of the upper adapter 3, the upper end female buckle of the outer cylinder 6 is meshed with the lower end male buckle of the upper adapter 3, the lower end female buckle of the outer cylinder 6 is meshed with the upper end male buckle of the lower adapter 8, the upper end female buckle of the lower adapter 11 is meshed with the lower end male buckle of the lower adapter 8, and the lower end of the lower adapter 11 is provided with a male buckle. The upper adapter 3 is provided with an upper threaded blind hole and a lower threaded blind hole, and a vertical through hole 13 for circulating sand mixing liquid is arranged in the middle of the upper adapter 3. The umbrella-shaped cap 2 is screwed into the threaded blind hole at the upper end of the upper adapter joint 3. The upper end of the upper inner cylinder connector 5 is screwed into a threaded blind hole at the lower end of the upper adapter connector 3, and a transverse sand outlet hole 14 is formed in the middle of the upper inner cylinder connector 5. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the upper joint 5 of the inner cylinder, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the lower joint 9 of the inner cylinder. The inner cylinder lower connector 9 is directly inserted into the middle through hole of the lower adapter connector 8. The male buckle at the upper end of the plug 10 is meshed with the female buckle at the lower end of the lower joint 9 of the inner cylinder, the lower part of the plug 10 hooks the lower adapter joint 8 through a step 15 arranged on the lower part of the plug, and a through hole which is convenient for sand mixing liquid to pass through is arranged in the middle of the plug 10.
The number of the vertical through holes 13 of the upper adapter connector 3 is three to ensure that the sand mixing liquid smoothly passes through.
The number of the transverse sand outlet holes 14 of the upper joint 5 of the inner cylinder is four, so that smooth sand outlet is ensured.
The top end of the umbrella-shaped cap 2 is conical, so that the gravel is prevented from being accumulated at the upper end of the upper adapter 3 during sand setting to cause blockage.
The middle part of the upper joint 1 is provided with a groove-shaped elevator 12 so as to facilitate hoisting.
The upper end and the lower end of the upper adapter connector 3 are respectively provided with a sealing ring installing groove 4 for installing sealing rings, and the sealing grooves are respectively used for sealing between the upper adapter connector 3 and the upper connector 1 and between the upper adapter connector 3 and the outer cylinder 6.
Example 7
See fig. 1,2 and 3. A reverse circulation sand-cleaning sand collector comprises an upper joint 1, an upper adapter joint 3, an outer cylinder 6, a lower adapter joint 8, a lower joint 11, an umbrella-shaped cap 2, an inner cylinder upper joint 5, an inner cylinder 7, an inner cylinder lower joint 9 and a plug 10. The upper joint 1 is connected with a drill rod or an oil pipe through an upper end female buckle, the lower end female buckle of the upper joint 1 is meshed with the upper end male buckle of the upper adapter 3, the upper end female buckle of the outer cylinder 6 is meshed with the lower end male buckle of the upper adapter 3, the lower end female buckle of the outer cylinder 6 is meshed with the upper end male buckle of the lower adapter 8, the upper end female buckle of the lower adapter 11 is meshed with the lower end male buckle of the lower adapter 8, and the lower end of the lower adapter 11 is provided with a male buckle. The upper adapter 3 is provided with an upper threaded blind hole and a lower threaded blind hole, and a vertical through hole 13 for circulating sand mixing liquid is arranged in the middle of the upper adapter 3. The umbrella-shaped cap 2 is screwed into the threaded blind hole at the upper end of the upper adapter joint 3. The upper end of the upper inner cylinder connector 5 is screwed into a threaded blind hole at the lower end of the upper adapter connector 3, and a transverse sand outlet hole 14 is formed in the middle of the upper inner cylinder connector 5. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the upper joint 5 of the inner cylinder, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the lower joint 9 of the inner cylinder. The inner cylinder lower connector 9 is directly inserted into the middle through hole of the lower adapter connector 8. The male buckle at the upper end of the plug 10 is meshed with the female buckle at the lower end of the lower joint 9 of the inner cylinder, the lower part of the plug 10 hooks the lower adapter joint 8 through a step 15 arranged on the lower part of the plug, and a through hole which is convenient for sand mixing liquid to pass through is arranged in the middle of the plug 10.
The number of the vertical through holes 13 of the upper adapter connector 3 is three to ensure that the sand mixing liquid smoothly passes through.
The number of the transverse sand outlet holes 14 of the upper joint 5 of the inner cylinder is four, so that smooth sand outlet is ensured.
The top end of the umbrella-shaped cap 2 is conical, so that the gravel is prevented from being accumulated at the upper end of the upper adapter 3 during sand setting to cause blockage.
The middle part of the upper joint 1 is provided with a groove-shaped elevator 12 so as to facilitate hoisting.
The upper end and the lower end of the upper adapter connector 3 are respectively provided with a sealing ring installing groove 4 for installing sealing rings, and the sealing grooves are respectively used for sealing between the upper adapter connector 3 and the upper connector 1 and between the upper adapter connector 3 and the outer cylinder 6.
The upper end and the lower end of the lower adapter joint 8 are respectively provided with a sealing ring groove 4 for installing a sealing ring, and the sealing grooves are respectively used for sealing between the lower adapter joint 8 and the outer cylinder 6 and between the lower adapter joint 8 and the lower adapter joint 11.
Example 8
See fig. 1,2 and 3. A reverse circulation sand-cleaning sand collector comprises an upper joint 1, an upper adapter joint 3, an outer cylinder 6, a lower adapter joint 8, a lower joint 11, an umbrella-shaped cap 2, an inner cylinder upper joint 5, an inner cylinder 7, an inner cylinder lower joint 9 and a plug 10. The upper joint 1 is connected with a drill rod or an oil pipe through an upper end female buckle, the lower end female buckle of the upper joint 1 is meshed with the upper end male buckle of the upper adapter 3, the upper end female buckle of the outer cylinder 6 is meshed with the lower end male buckle of the upper adapter 3, the lower end female buckle of the outer cylinder 6 is meshed with the upper end male buckle of the lower adapter 8, the upper end female buckle of the lower adapter 11 is meshed with the lower end male buckle of the lower adapter 8, and the lower end of the lower adapter 11 is provided with a male buckle. The upper adapter 3 is provided with an upper threaded blind hole and a lower threaded blind hole, and a vertical through hole 13 for circulating sand mixing liquid is arranged in the middle of the upper adapter 3. The umbrella-shaped cap 2 is screwed into the threaded blind hole at the upper end of the upper adapter joint 3. The upper end of the upper inner cylinder connector 5 is screwed into a threaded blind hole at the lower end of the upper adapter connector 3, and a transverse sand outlet hole 14 is formed in the middle of the upper inner cylinder connector 5. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the upper joint 5 of the inner cylinder, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the lower joint 9 of the inner cylinder. The inner cylinder lower connector 9 is directly inserted into the middle through hole of the lower adapter connector 8. The male buckle at the upper end of the plug 10 is meshed with the female buckle at the lower end of the lower joint 9 of the inner cylinder, the lower part of the plug 10 hooks the lower adapter joint 8 through a step 15 arranged on the lower part of the plug, and a through hole which is convenient for sand mixing liquid to pass through is arranged in the middle of the plug 10.
The number of the vertical through holes 13 of the upper adapter connector 3 is three to ensure that the sand mixing liquid smoothly passes through.
The number of the transverse sand outlet holes 14 of the upper joint 5 of the inner cylinder is four, so that smooth sand outlet is ensured.
The top end of the umbrella-shaped cap 2 is conical, so that the gravel is prevented from being accumulated at the upper end of the upper adapter 3 during sand setting to cause blockage.
The middle part of the upper joint 1 is provided with a groove-shaped elevator 12 so as to facilitate hoisting.
The upper end and the lower end of the upper adapter connector 3 are respectively provided with a sealing ring installing groove 4 for installing sealing rings, and the sealing grooves are respectively used for sealing between the upper adapter connector 3 and the upper connector 1 and between the upper adapter connector 3 and the outer cylinder 6.
The upper end and the lower end of the lower adapter joint 8 are respectively provided with a sealing ring groove 4 for installing a sealing ring, and the sealing grooves are respectively used for sealing between the lower adapter joint 8 and the outer cylinder 6 and between the lower adapter joint 8 and the lower adapter joint 11.
The sealing ring adopts an O-shaped sealing ring.
Example 9
See fig. 1,2 and 3. A reverse circulation sand-cleaning sand collector comprises an upper joint 1, an upper adapter joint 3, an outer cylinder 6, a lower adapter joint 8, a lower joint 11, an umbrella-shaped cap 2, an inner cylinder upper joint 5, an inner cylinder 7, an inner cylinder lower joint 9 and a plug 10. The upper joint 1 is connected with a drill rod or an oil pipe through an upper end female buckle, the lower end female buckle of the upper joint 1 is meshed with the upper end male buckle of the upper adapter 3, the upper end female buckle of the outer cylinder 6 is meshed with the lower end male buckle of the upper adapter 3, the lower end female buckle of the outer cylinder 6 is meshed with the upper end male buckle of the lower adapter 8, the upper end female buckle of the lower adapter 11 is meshed with the lower end male buckle of the lower adapter 8, and the lower end of the lower adapter 11 is provided with a male buckle. The upper adapter 3 is provided with an upper threaded blind hole and a lower threaded blind hole, and a vertical through hole 13 for circulating sand mixing liquid is arranged in the middle of the upper adapter 3. The umbrella-shaped cap 2 is screwed into the threaded blind hole at the upper end of the upper adapter joint 3. The upper end of the upper inner cylinder connector 5 is screwed into a threaded blind hole at the lower end of the upper adapter connector 3, and a transverse sand outlet hole 14 is formed in the middle of the upper inner cylinder connector 5. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the upper joint 5 of the inner cylinder, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the lower joint 9 of the inner cylinder. The inner cylinder lower connector 9 is directly inserted into the middle through hole of the lower adapter connector 8. The male buckle at the upper end of the plug 10 is meshed with the female buckle at the lower end of the lower joint 9 of the inner cylinder, the lower part of the plug 10 hooks the lower adapter joint 8 through a step 15 arranged on the lower part of the plug, and a through hole which is convenient for sand mixing liquid to pass through is arranged in the middle of the plug 10.
The number of the vertical through holes 13 of the upper adapter connector 3 is three to ensure that the sand mixing liquid smoothly passes through.
The number of the transverse sand outlet holes 14 of the upper joint 5 of the inner cylinder is four, so that smooth sand outlet is ensured.
The top end of the umbrella-shaped cap 2 is conical, so that the gravel is prevented from being accumulated at the upper end of the upper adapter 3 during sand setting to cause blockage.
The middle part of the upper joint 1 is provided with a groove-shaped elevator 12 so as to facilitate hoisting.
The upper end and the lower end of the upper adapter connector 3 are respectively provided with a sealing ring installing groove 4 for installing sealing rings, and the sealing grooves are respectively used for sealing between the upper adapter connector 3 and the upper connector 1 and between the upper adapter connector 3 and the outer cylinder 6.
The upper end and the lower end of the lower adapter joint 8 are respectively provided with a sealing ring groove 4 for installing a sealing ring, and the sealing grooves are respectively used for sealing between the lower adapter joint 8 and the outer cylinder 6 and between the lower adapter joint 8 and the lower adapter joint 11.
The sealing ring adopts an O-shaped sealing ring.
The O-shaped sealing ring is made of rubber.
Example 10
See fig. 1,2 and 3. A reverse circulation sand-cleaning sand collector comprises an upper joint 1, an upper adapter joint 3, an outer cylinder 6, a lower adapter joint 8, a lower joint 11, an umbrella-shaped cap 2, an inner cylinder upper joint 5, an inner cylinder 7, an inner cylinder lower joint 9 and a plug 10. The upper joint 1 is connected with a drill rod or an oil pipe through an upper end female buckle, the lower end female buckle of the upper joint 1 is meshed with the upper end male buckle of the upper adapter 3, the upper end female buckle of the outer cylinder 6 is meshed with the lower end male buckle of the upper adapter 3, the lower end female buckle of the outer cylinder 6 is meshed with the upper end male buckle of the lower adapter 8, the upper end female buckle of the lower adapter 11 is meshed with the lower end male buckle of the lower adapter 8, and the lower end of the lower adapter 11 is provided with a male buckle. The upper adapter 3 is provided with an upper threaded blind hole and a lower threaded blind hole, and a vertical through hole 13 for circulating sand mixing liquid is arranged in the middle of the upper adapter 3. The umbrella-shaped cap 2 is screwed into the threaded blind hole at the upper end of the upper adapter joint 3. The upper end of the upper inner cylinder connector 5 is screwed into a threaded blind hole at the lower end of the upper adapter connector 3, and a transverse sand outlet hole 14 is formed in the middle of the upper inner cylinder connector 5. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the upper joint 5 of the inner cylinder, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the lower joint 9 of the inner cylinder. The inner cylinder lower connector 9 is directly inserted into the middle through hole of the lower adapter connector 8. The male buckle at the upper end of the plug 10 is meshed with the female buckle at the lower end of the lower joint 9 of the inner cylinder, the lower part of the plug 10 hooks the lower adapter joint 8 through a step 15 arranged on the lower part of the plug, and a through hole which is convenient for sand mixing liquid to pass through is arranged in the middle of the plug 10.
The number of the vertical through holes 13 of the upper adapter connector 3 is three to ensure that the sand mixing liquid smoothly passes through.
The number of the transverse sand outlet holes 14 of the upper joint 5 of the inner cylinder is four, so that smooth sand outlet is ensured.
The top end of the umbrella-shaped cap 2 is conical, so that the gravel is prevented from being accumulated at the upper end of the upper adapter 3 during sand setting to cause blockage.
The middle part of the upper joint 1 is provided with a groove-shaped elevator 12 so as to facilitate hoisting.
The upper end and the lower end of the upper adapter connector 3 are respectively provided with a sealing ring installing groove 4 for installing sealing rings, and the sealing grooves are respectively used for sealing between the upper adapter connector 3 and the upper connector 1 and between the upper adapter connector 3 and the outer cylinder 6.
The upper end and the lower end of the lower adapter joint 8 are respectively provided with a sealing ring groove 4 for installing a sealing ring, and the sealing grooves are respectively used for sealing between the lower adapter joint 8 and the outer cylinder 6 and between the lower adapter joint 8 and the lower adapter joint 11.
The sealing ring adopts an O-shaped sealing ring.
The O-shaped sealing ring is made of rubber.
The rubber adopts nitrile rubber to fully exert the advantages of good oil resistance, good wear resistance, good air tightness, ageing resistance and low cost.
The working principle of the invention is as follows:
1. The reverse circulation sand cleaning and sand collecting device is connected to the lowest end of the sand cleaning pipe column, and the lower joint 11 is connected with the sand cleaning pen point through a male buckle at the lower end of the lower joint for reverse sand cleaning.
2. And (3) a sand mixing stage: under the condition that the power equipment provides pressure difference, the sand mixing liquid in the tool below the reverse circulation sand removal sand collector moves upwards to reach the reverse circulation sand removal sand collector. The sand mixing liquid firstly enters the inner cavity of the lower joint 11, continuously moves upwards to the plug 10, and then enters the inner cylinder 7 through the inner cylinder lower joint 9. The sand mixing liquid moves upwards in the inner cylinder 7 under the action of pressure difference and reaches the upper joint 5 of the inner cylinder. The upper end of the upper inner cylinder joint 5 is not communicated, and the sand mixing liquid flows out from the transverse sand outlet 14 on the upper inner cylinder joint 5 and enters an outer annular space formed by the outer cylinder 6, the inner cylinder 7 and the upper inner cylinder joint 5. Because the overflow area of the outer annular space is larger than that of the inner cylinder 7, the flow velocity of the sand-mixing liquid is reduced after the sand-mixing liquid flows out from the transverse sand outlet holes 14, the sand-carrying capacity of the sand-mixing liquid is reduced, large-particle sand in the sand-mixing liquid can be precipitated in the outer annular space, and other small-particle sand continues to ascend along with the sand-mixing liquid through the vertical through holes 13 of the upper adapter 3. The sand mixing liquid which continues to go upward passes through the vertical through hole 13 of the upper adapter 3 and the upper adapter and then enters the tool above the sand setting pump.
3. Sand setting stage: and (3) closing the power equipment, preventing the sand mixing liquid from ascending, settling the sand mixing liquid in standing, and layering the solid and the liquid. After the sand mixing liquid in the tool above the sand settling pump is settled, the gravel in the sand mixing liquid gradually settles and falls back into the reverse circulation sand cleaning sand collector. Firstly, the gravel enters the upper joint 1 and continuously falls, and the gravel cannot be blocked at the upper end of the upper adapter joint 3 under the action of the conical top end of the umbrella-shaped cap 2. The gravel continuously falls down, passes through the vertical through hole 13 of the upper adapter 3, falls into the outer annular space formed by the outer cylinder 6, the inner cylinder 7 and the upper adapter 5 under the action of gravity, and is collected in the outer annular space.
4. Cleaning: and (3) taking out the tool, and cleaning the gravel in the reverse circulation sand removal sand collector to achieve the sand-fishing effect.
Claims (9)
1. The utility model provides a reverse circulation sand removal sand trap which characterized in that: the device comprises an upper joint, an upper adapter joint, an outer cylinder, a lower adapter joint, a lower joint, an umbrella-shaped cap, an upper joint of an inner cylinder, a lower joint of the inner cylinder and a plug; the upper joint is connected with the drill rod or the oil pipe through an upper end female buckle, the lower end female buckle of the upper joint is meshed with the upper end male buckle of the upper switching joint, the upper end female buckle of the outer barrel is meshed with the lower end male buckle of the upper switching joint, the lower end female buckle of the outer barrel is meshed with the upper end male buckle of the lower switching joint, the upper end female buckle of the lower joint is meshed with the lower end male buckle of the lower switching joint, and the lower end of the lower joint is provided with a male buckle; the upper adapter joint is provided with an upper threaded blind hole and a lower threaded blind hole, and a vertical through hole for circulating sand mixing liquid is formed in the middle of the upper adapter joint; the umbrella-shaped cap is screwed into the threaded blind hole at the upper end of the upper adapter joint; the upper end of the upper joint of the inner cylinder is screwed into a threaded blind hole at the lower end of the upper adapter, and a transverse sand outlet hole is formed in the middle of the upper joint of the inner cylinder; the upper male buckle of the inner cylinder is meshed with the lower female buckle of the upper joint of the inner cylinder, and the lower male buckle of the inner cylinder is meshed with the upper female buckle of the lower joint of the inner cylinder; the inner barrel lower connector is directly inserted into the middle through hole of the lower adapter connector; the upper male buckle of the plug is meshed with the lower female buckle of the lower joint of the inner cylinder, the lower part of the plug hooks the lower adapter joint through a step arranged on the lower part of the plug, and a through hole which is convenient for the sand mixing liquid to pass through is arranged in the middle of the plug;
the application method of the reverse circulation sand removal and collection device comprises the following steps:
(1) The reverse circulation sand removal sand collector is connected to the lowest end of the sand washing pipe column, and the lower joint is connected with the sand washing pen point through a male buckle at the lower end of the lower joint to perform reverse sand washing;
(2) And (3) a sand mixing stage: under the condition that the power equipment provides a pressure difference, the sand mixing liquid in the tool below the reverse circulation sand removal sand collector ascends to reach the reverse circulation sand removal sand collector; firstly, sand mixing liquid enters an inner cavity of the lower joint, continuously moves upwards to the plug, and then enters the inner cylinder through the lower joint of the inner cylinder; the sand mixing liquid moves upwards in the inner cylinder under the action of pressure difference and reaches the upper joint of the inner cylinder; the sand mixing liquid flows out from a transverse sand outlet hole on the upper joint of the inner cylinder and enters an outer annular space formed by the outer cylinder, the inner cylinder and the upper joint of the inner cylinder; the flow speed of the sand mixing liquid is reduced after the sand mixing liquid flows out from the transverse sand outlet holes, wherein large-particle sand can be precipitated in an outer annular space, and other small-particle sand continuously ascends along with the sand mixing liquid through the vertical through holes of the upper adapter; continuing to pass through the vertical through hole of the upper adapter joint and the upper joint, and then entering the upper tool by the upward sand mixing liquid;
(3) Sand setting stage: turning off the power equipment, enabling the sand mixing liquid not to go upwards any more, settling the sand mixing liquid in standing, and gradually settling gravel therein and falling into the reverse circulation sand removal sand collector; firstly, entering an upper joint, continuously falling gravel under the action of a cone at the top end of an umbrella-shaped cap, passing through a vertical through hole of the upper adapter, falling into an outer annular space formed by the outer barrel, the inner barrel and the upper joint of the inner barrel under the action of gravity, and collecting in the outer annular space;
(4) Cleaning: and (5) lifting out the tool to clean the gravel in the reverse circulation sand removal sand collector.
2. A reverse circulation sand trap according to claim 1, wherein: the number of the vertical through holes of the upper adapter is three.
3. A reverse circulation sand trap according to claim 2, wherein: the number of the transverse sand outlet holes of the upper joint of the inner cylinder is four.
4. A reverse circulation sand trap according to claim 3, wherein: the top end of the umbrella-shaped cap is conical.
5. A reverse circulation sand trap according to claim 4, wherein: the middle part of the upper joint is provided with a groove-shaped elevator.
6. A reverse circulation sand trap according to claim 5, wherein: the upper end and the lower end of the upper adapter are respectively provided with a sealing ring groove for installing a sealing ring, and the sealing rings are respectively used for sealing between the upper adapter and between the upper adapter and the outer cylinder.
7. The reverse circulation sand removal and collection device according to claim 6, wherein: the upper end and the lower end of the lower adapter are respectively provided with a sealing ring groove for installing a sealing ring, and the sealing grooves are respectively used for sealing between the lower adapter and the outer cylinder and between the lower adapter and the lower adapter.
8. A reverse circulation sand trap according to claim 6 or 7, wherein: the sealing ring is an O-shaped sealing ring.
9. The reverse circulation sand removal and collection device according to claim 8, wherein: the O-shaped sealing ring is made of rubber.
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| CN207879289U (en) * | 2018-01-30 | 2018-09-18 | 北京德美高科科技有限责任公司 | Well workover reacting cycle drags for sand sand-precipitating tube |
| CN212054561U (en) * | 2020-04-03 | 2020-12-01 | 中石化石油工程技术服务有限公司 | Reverse circulation sand cleaning and collecting device |
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| US4476925A (en) * | 1982-09-24 | 1984-10-16 | Cox Pope D | Sand shield for bottom hole pumps |
| CN205089284U (en) * | 2015-11-17 | 2016-03-16 | 中国石油化工股份有限公司 | Water injection string bottom sand setting single current valve |
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| CN206280027U (en) * | 2016-12-08 | 2017-06-27 | 新疆华油油气工程有限公司 | Reacting cycle is forced to drag for sand instrument |
| CN206942701U (en) * | 2017-03-06 | 2018-01-30 | 重庆地质矿产研究院 | Motor-pumped well sediment fishing device |
| CN207048709U (en) * | 2017-08-21 | 2018-02-27 | 天津地热勘查开发设计院 | Reacting cycle is with brill sand pumping device |
| EP3561219A1 (en) * | 2018-04-26 | 2019-10-30 | Welltec A/S | Workover tool string |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207879289U (en) * | 2018-01-30 | 2018-09-18 | 北京德美高科科技有限责任公司 | Well workover reacting cycle drags for sand sand-precipitating tube |
| CN212054561U (en) * | 2020-04-03 | 2020-12-01 | 中石化石油工程技术服务有限公司 | Reverse circulation sand cleaning and collecting device |
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