CN113494252A - Reverse circulation sand cleaning and collecting device and use method thereof - Google Patents
Reverse circulation sand cleaning and collecting device and use method thereof Download PDFInfo
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- CN113494252A CN113494252A CN202010259173.0A CN202010259173A CN113494252A CN 113494252 A CN113494252 A CN 113494252A CN 202010259173 A CN202010259173 A CN 202010259173A CN 113494252 A CN113494252 A CN 113494252A
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- 239000004576 sand Substances 0.000 title claims abstract description 175
- 238000004140 cleaning Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 51
- 238000007789 sealing Methods 0.000 claims description 67
- 238000005406 washing Methods 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 description 10
- 238000003756 stirring Methods 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 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
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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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- 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 cleaning sand collector and a use method thereof, wherein the reverse circulation sand cleaning sand collector comprises an upper joint, an outer cylinder, a lower joint, an umbrella-shaped cap, an inner cylinder upper joint, an inner cylinder lower joint and a plug; the upper joint, the upper adapter joint, the outer barrel, the lower adapter joint and the lower joint are sequentially connected; a vertical through hole for circulating the sand mixing liquid is formed in the middle of the upper transfer joint; 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 lower connector of the inner cylinder is directly inserted into the middle through hole of the lower connector; the upper end of the plug is connected with the lower connector of the inner barrel, the lower part of the plug is hooked by the step to form the lower connector, and a through hole which is convenient for the mixed sand liquid to pass through is formed in the middle of the plug. The invention can efficiently collect well sand and prevent sand removal tools from being blocked; can quickly settle sand and is convenient for unloading and cleaning on the ground.
Description
Technical Field
The invention relates to the technical field of oil field well repair, in particular to a reverse circulation sand cleaning and collecting device and a using method thereof.
Background
The problem of sand production from wells is one of the problems which are urgently needed to be solved by the oil exploitation industry. During oil production, sand in the formation can be carried into a wellbore along with the flow of oil or natural gas, and particularly in the case of open hole completion, the formation collapse phenomenon often occurs. Since sand is denser than oil and water, the gradually deposited sand can block the oil outlet passage. Sand in the production fluids can also abrade or damage downhole equipment. The phenomenon of sand production of oil wells in domestic oil fields generally exists, so that the cleaning of sand in the oil wells is an important work in workover operation.
At present, a jet pump is generally used for a sand removal process of local reverse circulation. For example: the technical scheme is that the pulse jet pump for sand washing and well washing comprises a high-pressure nozzle, an outer cylinder, a diffusion pipe and a stirring nozzle, wherein the diffusion pipe and the stirring nozzle are arranged in the outer cylinder, the diffusion pipe is connected with the stirring nozzle, the high-pressure nozzle is connected with one port of the outer cylinder, a high-pressure cavity is formed between the high-pressure nozzle and the stirring nozzle, and a first self-excited oscillation cavity is formed between an inlet and an outlet of the high-pressure nozzle; also comprises a self-oscillation nozzle; 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 bell mouth structure; and a sand control screen pipe is arranged between the diffusion pipe and the self-oscillation nozzle, and the stirring nozzle is positioned in the sand control screen pipe. The patent also provides a shaft cleaning device, which comprises a jet pump, a concentric continuous oil pipe, a gas lift system, a three-phase separation device, a monitoring device and a controller; the jet pump adopts the pulse jet pump for washing the sand 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 an outer cylinder of the jet pump, and the inner pipe is connected with a 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 a discharge pipe, wherein the inlet pipe, the exhaust pipe, the oil discharge pipe and the discharge 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 airflow nozzle is arranged upwards along the inner pipe.
Although the local reverse circulation sand removal process using the jet pump has a certain sand removal effect, the sand can cause the abrasion of the jet pump in the production practice, and the large-particle sand can also cause the blockage of a sand removal tool.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the reverse circulation sand cleaning collector which can efficiently collect well sand and prevent a sand cleaning tool from being blocked.
The technical scheme is as follows: comprises an upper joint, an outer cylinder, a lower joint, an umbrella-shaped cap, an inner cylinder upper joint, an inner cylinder lower joint and a plug; the upper joint is connected with a drill rod or an oil pipe through an upper end female buckle, a lower end female buckle of the upper joint is meshed with an upper end male buckle of the upper adapter, an upper end female buckle of the outer cylinder is meshed with a lower end male buckle of the upper adapter, a lower end female buckle of the outer cylinder is meshed with an upper end male buckle of the lower adapter, an upper end female buckle of the lower joint is meshed with a lower end male buckle of the lower adapter, and a male buckle is arranged at the lower end of the lower joint; the upper adapter is provided with an upper end thread blind hole and a lower end thread blind hole, and the middle of the upper adapter is provided with a vertical through hole for circulating the sand mixing liquid; the umbrella-shaped cap is screwed into the upper threaded blind hole of the upper adapter connector; the upper end of the upper connector of the inner cylinder is screwed into the lower end thread blind hole of the upper adapter, and the middle of the upper connector of the inner cylinder is provided with a transverse sand outlet; the upper male buckle of the inner cylinder is meshed with the lower female buckle of the upper connector of the inner cylinder, and the lower male buckle of the inner cylinder is meshed with the upper female buckle of the lower connector of the inner cylinder; the lower connector of the inner cylinder is directly inserted into the middle through hole of the lower connector; the upper male thread of the screw plug is meshed with the lower female thread of the lower connector of the inner cylinder, the lower part of the screw plug hooks the lower adapter connector through the step arranged on the lower part of the screw plug, and the middle of the screw plug is provided with a through hole convenient for the mixed sand liquid to pass through.
The above technical solution can be further optimized as follows:
the number of the vertical through holes of the upper adapter connector is three.
And four transverse sand outlets are formed in the upper joint of the inner cylinder.
The top end of the umbrella-shaped cap is conical.
And a groove-shaped elevator is arranged in the middle of the upper joint.
And the upper end and the lower end of the upper adapter joint 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 joint and the upper joint and between the upper adapter joint and the outer barrel.
And the upper end and the lower end of the lower adapter are respectively provided with a sealing ring groove for mounting a sealing ring, and the sealing ring 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 mainly has the following remarkable technical effects:
1. the main body structure of the sand cleaning device is divided into an inner layer and an outer layer, the middle flow channel is used for circulating mixed sand liquid, and the outer layer annular space is used for storing gravel, so that well sand can be efficiently collected, and the sand cleaning tool can be prevented from being blocked.
2. Can quickly settle sand and is convenient for unloading 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 inventive structure;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic view of B-B in FIG. 1;
in the figure: 1-upper joint, 2-umbrella cap, 3-upper joint, 4-sealing ring groove, 5-inner cylinder upper joint, 6-outer cylinder, 7-inner cylinder, 8-lower joint, 9-inner cylinder lower joint, 10-plug, 11-lower joint, 12-groove-shaped elevator, 13-vertical through hole, 14-horizontal sand outlet and 15-step.
Detailed Description
The present invention will be described in detail below with reference to the following examples and accompanying drawings.
Example 1
See fig. 1, 2 and 3. A reverse circulation sand cleaning and collecting device comprises an upper joint 1, an upper joint 3, an outer cylinder 6, a lower 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 an upper end male buckle of an upper adapter 3, the upper end female buckle of the outer barrel 6 is meshed with a lower end male buckle of the upper adapter 3, the lower end female buckle of the outer barrel 6 is meshed with an upper end male buckle of a lower adapter 8, the upper end female buckle of the lower joint 11 is meshed with a lower end male buckle of the lower adapter 8, and the lower end of the lower joint 11 is provided with a male buckle. Go up adapter 3 and be equipped with upper end screw thread blind hole and lower extreme screw thread blind hole, go up the centre of adapter 3 and be equipped with the vertical through-hole 13 that the sand liquid was mixed in the circulation. The umbrella-shaped cap 2 is screwed into the blind hole of the upper thread of the upper adapter 3. The upper end of the inner cylinder upper joint 5 is screwed into the lower end thread blind hole of the upper adapter joint 3, and the middle of the inner cylinder upper joint 5 is provided with a transverse sand outlet 14. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the inner cylinder upper connector 5, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the inner cylinder lower connector 9. The lower joint 9 of the inner cylinder is directly inserted into the middle through hole of the lower joint 8. The upper male thread of the plug 10 is meshed with the lower female thread of the inner cylinder lower joint 9, the lower part of the plug 10 hooks the lower adapter 8 through the step 15 arranged on the lower part of the plug, and the middle of the plug 10 is provided with a through hole for facilitating the mixed sand liquid to pass through.
Example 2
See fig. 1, 2 and 3. A reverse circulation sand cleaning and collecting device comprises an upper joint 1, an upper joint 3, an outer cylinder 6, a lower 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 an upper end male buckle of an upper adapter 3, the upper end female buckle of the outer barrel 6 is meshed with a lower end male buckle of the upper adapter 3, the lower end female buckle of the outer barrel 6 is meshed with an upper end male buckle of a lower adapter 8, the upper end female buckle of the lower joint 11 is meshed with a lower end male buckle of the lower adapter 8, and the lower end of the lower joint 11 is provided with a male buckle. Go up adapter 3 and be equipped with upper end screw thread blind hole and lower extreme screw thread blind hole, go up the centre of adapter 3 and be equipped with the vertical through-hole 13 that the sand liquid was mixed in the circulation. The umbrella-shaped cap 2 is screwed into the blind hole of the upper thread of the upper adapter 3. The upper end of the inner cylinder upper joint 5 is screwed into the lower end thread blind hole of the upper adapter joint 3, and the middle of the inner cylinder upper joint 5 is provided with a transverse sand outlet 14. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the inner cylinder upper connector 5, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the inner cylinder lower connector 9. The lower joint 9 of the inner cylinder is directly inserted into the middle through hole of the lower joint 8. The upper male thread of the plug 10 is meshed with the lower female thread of the inner cylinder lower joint 9, the lower part of the plug 10 hooks the lower adapter 8 through the step 15 arranged on the lower part of the plug, and the middle of the plug 10 is provided with a through hole for facilitating the mixed sand liquid to pass through.
Three vertical through holes 13 are provided in the upper adapter 3 to ensure the sand-mixing fluid to pass through smoothly.
Example 3
See fig. 1, 2 and 3. A reverse circulation sand cleaning and collecting device comprises an upper joint 1, an upper joint 3, an outer cylinder 6, a lower 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 an upper end male buckle of an upper adapter 3, the upper end female buckle of the outer barrel 6 is meshed with a lower end male buckle of the upper adapter 3, the lower end female buckle of the outer barrel 6 is meshed with an upper end male buckle of a lower adapter 8, the upper end female buckle of the lower joint 11 is meshed with a lower end male buckle of the lower adapter 8, and the lower end of the lower joint 11 is provided with a male buckle. Go up adapter 3 and be equipped with upper end screw thread blind hole and lower extreme screw thread blind hole, go up the centre of adapter 3 and be equipped with the vertical through-hole 13 that the sand liquid was mixed in the circulation. The umbrella-shaped cap 2 is screwed into the blind hole of the upper thread of the upper adapter 3. The upper end of the inner cylinder upper joint 5 is screwed into the lower end thread blind hole of the upper adapter joint 3, and the middle of the inner cylinder upper joint 5 is provided with a transverse sand outlet 14. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the inner cylinder upper connector 5, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the inner cylinder lower connector 9. The lower joint 9 of the inner cylinder is directly inserted into the middle through hole of the lower joint 8. The upper male thread of the plug 10 is meshed with the lower female thread of the inner cylinder lower joint 9, the lower part of the plug 10 hooks the lower adapter 8 through the step 15 arranged on the lower part of the plug, and the middle of the plug 10 is provided with a through hole for facilitating the mixed sand liquid to pass through.
Three vertical through holes 13 are provided in the upper adapter 3 to ensure the sand-mixing fluid to pass through smoothly.
Four transverse sand outlets 14 are arranged on the upper joint 5 of the inner cylinder to ensure smooth sand outlet.
Example 4
See fig. 1, 2 and 3. A reverse circulation sand cleaning and collecting device comprises an upper joint 1, an upper joint 3, an outer cylinder 6, a lower 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 an upper end male buckle of an upper adapter 3, the upper end female buckle of the outer barrel 6 is meshed with a lower end male buckle of the upper adapter 3, the lower end female buckle of the outer barrel 6 is meshed with an upper end male buckle of a lower adapter 8, the upper end female buckle of the lower joint 11 is meshed with a lower end male buckle of the lower adapter 8, and the lower end of the lower joint 11 is provided with a male buckle. Go up adapter 3 and be equipped with upper end screw thread blind hole and lower extreme screw thread blind hole, go up the centre of adapter 3 and be equipped with the vertical through-hole 13 that the sand liquid was mixed in the circulation. The umbrella-shaped cap 2 is screwed into the blind hole of the upper thread of the upper adapter 3. The upper end of the inner cylinder upper joint 5 is screwed into the lower end thread blind hole of the upper adapter joint 3, and the middle of the inner cylinder upper joint 5 is provided with a transverse sand outlet 14. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the inner cylinder upper connector 5, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the inner cylinder lower connector 9. The lower joint 9 of the inner cylinder is directly inserted into the middle through hole of the lower joint 8. The upper male thread of the plug 10 is meshed with the lower female thread of the inner cylinder lower joint 9, the lower part of the plug 10 hooks the lower adapter 8 through the step 15 arranged on the lower part of the plug, and the middle of the plug 10 is provided with a through hole for facilitating the mixed sand liquid to pass through.
Three vertical through holes 13 are provided in the upper adapter 3 to ensure the sand-mixing fluid to pass through smoothly.
Four transverse sand outlets 14 are arranged on the upper joint 5 of the inner cylinder to ensure smooth sand outlet.
The top end of the umbrella-shaped cap 2 is conical, so that gravel can be prevented from being accumulated on the upper end of the upper adapter connector 3 to cause blockage during sand setting.
Example 5
See fig. 1, 2 and 3. A reverse circulation sand cleaning and collecting device comprises an upper joint 1, an upper joint 3, an outer cylinder 6, a lower 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 an upper end male buckle of an upper adapter 3, the upper end female buckle of the outer barrel 6 is meshed with a lower end male buckle of the upper adapter 3, the lower end female buckle of the outer barrel 6 is meshed with an upper end male buckle of a lower adapter 8, the upper end female buckle of the lower joint 11 is meshed with a lower end male buckle of the lower adapter 8, and the lower end of the lower joint 11 is provided with a male buckle. Go up adapter 3 and be equipped with upper end screw thread blind hole and lower extreme screw thread blind hole, go up the centre of adapter 3 and be equipped with the vertical through-hole 13 that the sand liquid was mixed in the circulation. The umbrella-shaped cap 2 is screwed into the blind hole of the upper thread of the upper adapter 3. The upper end of the inner cylinder upper joint 5 is screwed into the lower end thread blind hole of the upper adapter joint 3, and the middle of the inner cylinder upper joint 5 is provided with a transverse sand outlet 14. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the inner cylinder upper connector 5, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the inner cylinder lower connector 9. The lower joint 9 of the inner cylinder is directly inserted into the middle through hole of the lower joint 8. The upper male thread of the plug 10 is meshed with the lower female thread of the inner cylinder lower joint 9, the lower part of the plug 10 hooks the lower adapter 8 through the step 15 arranged on the lower part of the plug, and the middle of the plug 10 is provided with a through hole for facilitating the mixed sand liquid to pass through.
Three vertical through holes 13 are provided in the upper adapter 3 to ensure the sand-mixing fluid to pass through smoothly.
Four transverse sand outlets 14 are arranged on the upper joint 5 of the inner cylinder to ensure smooth sand outlet.
The top end of the umbrella-shaped cap 2 is conical, so that gravel can be prevented from being accumulated on the upper end of the upper adapter connector 3 to cause blockage during sand setting.
The middle part of the upper joint 1 is provided with a groove-shaped elevator 12 for facilitating hoisting.
Example 6
See fig. 1, 2 and 3. A reverse circulation sand cleaning and collecting device comprises an upper joint 1, an upper joint 3, an outer cylinder 6, a lower 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 an upper end male buckle of an upper adapter 3, the upper end female buckle of the outer barrel 6 is meshed with a lower end male buckle of the upper adapter 3, the lower end female buckle of the outer barrel 6 is meshed with an upper end male buckle of a lower adapter 8, the upper end female buckle of the lower joint 11 is meshed with a lower end male buckle of the lower adapter 8, and the lower end of the lower joint 11 is provided with a male buckle. Go up adapter 3 and be equipped with upper end screw thread blind hole and lower extreme screw thread blind hole, go up the centre of adapter 3 and be equipped with the vertical through-hole 13 that the sand liquid was mixed in the circulation. The umbrella-shaped cap 2 is screwed into the blind hole of the upper thread of the upper adapter 3. The upper end of the inner cylinder upper joint 5 is screwed into the lower end thread blind hole of the upper adapter joint 3, and the middle of the inner cylinder upper joint 5 is provided with a transverse sand outlet 14. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the inner cylinder upper connector 5, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the inner cylinder lower connector 9. The lower joint 9 of the inner cylinder is directly inserted into the middle through hole of the lower joint 8. The upper male thread of the plug 10 is meshed with the lower female thread of the inner cylinder lower joint 9, the lower part of the plug 10 hooks the lower adapter 8 through the step 15 arranged on the lower part of the plug, and the middle of the plug 10 is provided with a through hole for facilitating the mixed sand liquid to pass through.
Three vertical through holes 13 are provided in the upper adapter 3 to ensure the sand-mixing fluid to pass through smoothly.
Four transverse sand outlets 14 are arranged on the upper joint 5 of the inner cylinder to ensure smooth sand outlet.
The top end of the umbrella-shaped cap 2 is conical, so that gravel can be prevented from being accumulated on the upper end of the upper adapter connector 3 to cause blockage during sand setting.
The middle part of the upper joint 1 is provided with a groove-shaped elevator 12 for facilitating hoisting.
The upper end and the lower end of the upper adapter joint 3 are respectively provided with a sealing ring installing groove 4 for installing a sealing ring, and the sealing ring installing grooves are respectively used for sealing between the upper adapter joint 3 and the upper joint 1 and between the upper adapter joint 3 and the outer cylinder 6.
Example 7
See fig. 1, 2 and 3. A reverse circulation sand cleaning and collecting device comprises an upper joint 1, an upper joint 3, an outer cylinder 6, a lower 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 an upper end male buckle of an upper adapter 3, the upper end female buckle of the outer barrel 6 is meshed with a lower end male buckle of the upper adapter 3, the lower end female buckle of the outer barrel 6 is meshed with an upper end male buckle of a lower adapter 8, the upper end female buckle of the lower joint 11 is meshed with a lower end male buckle of the lower adapter 8, and the lower end of the lower joint 11 is provided with a male buckle. Go up adapter 3 and be equipped with upper end screw thread blind hole and lower extreme screw thread blind hole, go up the centre of adapter 3 and be equipped with the vertical through-hole 13 that the sand liquid was mixed in the circulation. The umbrella-shaped cap 2 is screwed into the blind hole of the upper thread of the upper adapter 3. The upper end of the inner cylinder upper joint 5 is screwed into the lower end thread blind hole of the upper adapter joint 3, and the middle of the inner cylinder upper joint 5 is provided with a transverse sand outlet 14. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the inner cylinder upper connector 5, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the inner cylinder lower connector 9. The lower joint 9 of the inner cylinder is directly inserted into the middle through hole of the lower joint 8. The upper male thread of the plug 10 is meshed with the lower female thread of the inner cylinder lower joint 9, the lower part of the plug 10 hooks the lower adapter 8 through the step 15 arranged on the lower part of the plug, and the middle of the plug 10 is provided with a through hole for facilitating the mixed sand liquid to pass through.
Three vertical through holes 13 are provided in the upper adapter 3 to ensure the sand-mixing fluid to pass through smoothly.
Four transverse sand outlets 14 are arranged on the upper joint 5 of the inner cylinder to ensure smooth sand outlet.
The top end of the umbrella-shaped cap 2 is conical, so that gravel can be prevented from being accumulated on the upper end of the upper adapter connector 3 to cause blockage during sand setting.
The middle part of the upper joint 1 is provided with a groove-shaped elevator 12 for facilitating hoisting.
The upper end and the lower end of the upper adapter joint 3 are respectively provided with a sealing ring installing groove 4 for installing a sealing ring, and the sealing ring installing grooves are respectively used for sealing between the upper adapter joint 3 and the upper joint 1 and between the upper adapter joint 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 ring 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 joint 11.
Example 8
See fig. 1, 2 and 3. A reverse circulation sand cleaning and collecting device comprises an upper joint 1, an upper joint 3, an outer cylinder 6, a lower 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 an upper end male buckle of an upper adapter 3, the upper end female buckle of the outer barrel 6 is meshed with a lower end male buckle of the upper adapter 3, the lower end female buckle of the outer barrel 6 is meshed with an upper end male buckle of a lower adapter 8, the upper end female buckle of the lower joint 11 is meshed with a lower end male buckle of the lower adapter 8, and the lower end of the lower joint 11 is provided with a male buckle. Go up adapter 3 and be equipped with upper end screw thread blind hole and lower extreme screw thread blind hole, go up the centre of adapter 3 and be equipped with the vertical through-hole 13 that the sand liquid was mixed in the circulation. The umbrella-shaped cap 2 is screwed into the blind hole of the upper thread of the upper adapter 3. The upper end of the inner cylinder upper joint 5 is screwed into the lower end thread blind hole of the upper adapter joint 3, and the middle of the inner cylinder upper joint 5 is provided with a transverse sand outlet 14. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the inner cylinder upper connector 5, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the inner cylinder lower connector 9. The lower joint 9 of the inner cylinder is directly inserted into the middle through hole of the lower joint 8. The upper male thread of the plug 10 is meshed with the lower female thread of the inner cylinder lower joint 9, the lower part of the plug 10 hooks the lower adapter 8 through the step 15 arranged on the lower part of the plug, and the middle of the plug 10 is provided with a through hole for facilitating the mixed sand liquid to pass through.
Three vertical through holes 13 are provided in the upper adapter 3 to ensure the sand-mixing fluid to pass through smoothly.
Four transverse sand outlets 14 are arranged on the upper joint 5 of the inner cylinder to ensure smooth sand outlet.
The top end of the umbrella-shaped cap 2 is conical, so that gravel can be prevented from being accumulated on the upper end of the upper adapter connector 3 to cause blockage during sand setting.
The middle part of the upper joint 1 is provided with a groove-shaped elevator 12 for facilitating hoisting.
The upper end and the lower end of the upper adapter joint 3 are respectively provided with a sealing ring installing groove 4 for installing a sealing ring, and the sealing ring installing grooves are respectively used for sealing between the upper adapter joint 3 and the upper joint 1 and between the upper adapter joint 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 ring 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 joint 11.
The sealing ring is an O-shaped sealing ring.
Example 9
See fig. 1, 2 and 3. A reverse circulation sand cleaning and collecting device comprises an upper joint 1, an upper joint 3, an outer cylinder 6, a lower 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 an upper end male buckle of an upper adapter 3, the upper end female buckle of the outer barrel 6 is meshed with a lower end male buckle of the upper adapter 3, the lower end female buckle of the outer barrel 6 is meshed with an upper end male buckle of a lower adapter 8, the upper end female buckle of the lower joint 11 is meshed with a lower end male buckle of the lower adapter 8, and the lower end of the lower joint 11 is provided with a male buckle. Go up adapter 3 and be equipped with upper end screw thread blind hole and lower extreme screw thread blind hole, go up the centre of adapter 3 and be equipped with the vertical through-hole 13 that the sand liquid was mixed in the circulation. The umbrella-shaped cap 2 is screwed into the blind hole of the upper thread of the upper adapter 3. The upper end of the inner cylinder upper joint 5 is screwed into the lower end thread blind hole of the upper adapter joint 3, and the middle of the inner cylinder upper joint 5 is provided with a transverse sand outlet 14. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the inner cylinder upper connector 5, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the inner cylinder lower connector 9. The lower joint 9 of the inner cylinder is directly inserted into the middle through hole of the lower joint 8. The upper male thread of the plug 10 is meshed with the lower female thread of the inner cylinder lower joint 9, the lower part of the plug 10 hooks the lower adapter 8 through the step 15 arranged on the lower part of the plug, and the middle of the plug 10 is provided with a through hole for facilitating the mixed sand liquid to pass through.
Three vertical through holes 13 are provided in the upper adapter 3 to ensure the sand-mixing fluid to pass through smoothly.
Four transverse sand outlets 14 are arranged on the upper joint 5 of the inner cylinder to ensure smooth sand outlet.
The top end of the umbrella-shaped cap 2 is conical, so that gravel can be prevented from being accumulated on the upper end of the upper adapter connector 3 to cause blockage during sand setting.
The middle part of the upper joint 1 is provided with a groove-shaped elevator 12 for facilitating hoisting.
The upper end and the lower end of the upper adapter joint 3 are respectively provided with a sealing ring installing groove 4 for installing a sealing ring, and the sealing ring installing grooves are respectively used for sealing between the upper adapter joint 3 and the upper joint 1 and between the upper adapter joint 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 ring 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 joint 11.
The sealing ring is 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 and collecting device comprises an upper joint 1, an upper joint 3, an outer cylinder 6, a lower 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 an upper end male buckle of an upper adapter 3, the upper end female buckle of the outer barrel 6 is meshed with a lower end male buckle of the upper adapter 3, the lower end female buckle of the outer barrel 6 is meshed with an upper end male buckle of a lower adapter 8, the upper end female buckle of the lower joint 11 is meshed with a lower end male buckle of the lower adapter 8, and the lower end of the lower joint 11 is provided with a male buckle. Go up adapter 3 and be equipped with upper end screw thread blind hole and lower extreme screw thread blind hole, go up the centre of adapter 3 and be equipped with the vertical through-hole 13 that the sand liquid was mixed in the circulation. The umbrella-shaped cap 2 is screwed into the blind hole of the upper thread of the upper adapter 3. The upper end of the inner cylinder upper joint 5 is screwed into the lower end thread blind hole of the upper adapter joint 3, and the middle of the inner cylinder upper joint 5 is provided with a transverse sand outlet 14. The upper male buckle of the inner cylinder 7 is meshed with the lower female buckle of the inner cylinder upper connector 5, and the lower male buckle of the inner cylinder 7 is meshed with the upper female buckle of the inner cylinder lower connector 9. The lower joint 9 of the inner cylinder is directly inserted into the middle through hole of the lower joint 8. The upper male thread of the plug 10 is meshed with the lower female thread of the inner cylinder lower joint 9, the lower part of the plug 10 hooks the lower adapter 8 through the step 15 arranged on the lower part of the plug, and the middle of the plug 10 is provided with a through hole for facilitating the mixed sand liquid to pass through.
Three vertical through holes 13 are provided in the upper adapter 3 to ensure the sand-mixing fluid to pass through smoothly.
Four transverse sand outlets 14 are arranged on the upper joint 5 of the inner cylinder to ensure smooth sand outlet.
The top end of the umbrella-shaped cap 2 is conical, so that gravel can be prevented from being accumulated on the upper end of the upper adapter connector 3 to cause blockage during sand setting.
The middle part of the upper joint 1 is provided with a groove-shaped elevator 12 for facilitating hoisting.
The upper end and the lower end of the upper adapter joint 3 are respectively provided with a sealing ring installing groove 4 for installing a sealing ring, and the sealing ring installing grooves are respectively used for sealing between the upper adapter joint 3 and the upper joint 1 and between the upper adapter joint 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 ring 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 joint 11.
The sealing ring is an O-shaped sealing ring.
The O-shaped sealing ring is made of rubber.
The rubber is nitrile rubber, so that the advantages of good oil resistance, good wear resistance, good air tightness, aging resistance and low cost are fully exerted.
The working principle of the invention is as follows:
1. the reverse circulation sand cleaning and collecting device is connected to the lowest end of the sand washing pipe column, and the lower connector 11 is connected with a sand washing pen point through a male buckle at the lower end of the lower connector to perform reverse sand washing.
2. 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 cleaning and collecting device moves upwards to reach the reverse circulation sand cleaning and collecting device. The sand mixing liquid firstly enters the inner cavity of the lower joint 11, continuously goes up to the plug 10, and then enters the inner cylinder 7 through the lower joint 9 of the inner cylinder. The mixed sand 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 joint 5 of the inner cylinder is not communicated, and the mixed sand liquid flows out from the transverse sand outlet 14 on the upper joint 5 of the inner cylinder and enters an outer-layer annular space formed by the outer cylinder 6, the inner cylinder 7 and the upper joint 5 of the inner cylinder. Because the overflow area of outer annular space is greater than the overflow area of inner tube 7, the velocity of flow reduces after the muddy sand liquid flows out from horizontal sand outlet 14, and the sand carrying capacity of muddy sand liquid reduces, and large granule sand wherein can deposit in outer annular space, and other small granule sand continue to go upward through the vertical through-hole 13 of upper adapter 3 along with the muddy sand liquid. And the continuously ascending mixed sand liquid passes through the vertical through hole 13 of the upper adapter 3 and the upper connector and then enters a tool above the sand setting pump.
3. A sand setting stage: and (4) closing the power equipment, stopping the sand mixing liquid from ascending, settling the sand mixing liquid in the static state, and layering solid and liquid. After the sand mixing liquid in the tool above the sand setting pump is precipitated, gravel therein is gradually precipitated and falls back to the reverse circulation sand cleaning and collecting device. The gravel enters the upper joint 1 at first and continuously falls, and cannot block the upper end of the upper adapter joint 3 under the action of the cone at the top end of the umbrella-shaped cap 2. The gravel continuously falls down and passes through the transverse sand outlet 14 of the upper adapter 3, and then falls into an outer annular space formed by the outer cylinder 6, the inner cylinder 7 and the upper adapter 5 of the inner cylinder under the action of gravity and is collected in the space.
4. A cleaning stage: the tool is taken out to clean gravel in the reverse circulation sand cleaning and collecting device, so that the sand bailing effect is achieved.
Claims (10)
1. The utility model provides a reverse circulation sand removal sand collector which characterized in that: comprises an upper joint, an outer cylinder, a lower joint, an umbrella-shaped cap, an inner cylinder upper joint, an inner cylinder lower joint and a plug; the upper joint is connected with a drill rod or an oil pipe through an upper end female buckle, a lower end female buckle of the upper joint is meshed with an upper end male buckle of the upper adapter, an upper end female buckle of the outer cylinder is meshed with a lower end male buckle of the upper adapter, a lower end female buckle of the outer cylinder is meshed with an upper end male buckle of the lower adapter, an upper end female buckle of the lower joint is meshed with a lower end male buckle of the lower adapter, and a male buckle is arranged at the lower end of the lower joint; the upper adapter is provided with an upper end thread blind hole and a lower end thread blind hole, and the middle of the upper adapter is provided with a vertical through hole for circulating the sand mixing liquid; the umbrella-shaped cap is screwed into the upper threaded blind hole of the upper adapter connector; the upper end of the upper connector of the inner cylinder is screwed into the lower end thread blind hole of the upper adapter, and the middle of the upper connector of the inner cylinder is provided with a transverse sand outlet; the upper male buckle of the inner cylinder is meshed with the lower female buckle of the upper connector of the inner cylinder, and the lower male buckle of the inner cylinder is meshed with the upper female buckle of the lower connector of the inner cylinder; the lower connector of the inner cylinder is directly inserted into the middle through hole of the lower connector; the upper male thread of the screw plug is meshed with the lower female thread of the lower connector of the inner cylinder, the lower part of the screw plug hooks the lower adapter connector through the step arranged on the lower part of the screw plug, and the middle of the screw plug is provided with a through hole convenient for the mixed sand liquid to pass through.
2. The reverse circulation sand-cleaning sand collector according to claim 1, characterized in that: the number of the vertical through holes of the upper adapter connector is three.
3. The reverse circulation sand-cleaning sand collector according to claim 2, characterized in that: and four transverse sand outlets are formed in the upper joint of the inner cylinder.
4. A reverse circulation sand cleaning collector according to claim 3, wherein: the top end of the umbrella-shaped cap is conical.
5. The reverse circulation sand-cleaning sand collector according to claim 4, characterized in that: and a groove-shaped elevator is arranged in the middle of the upper joint.
6. The reverse circulation sand-cleaning sand collector according to claim 5, characterized in that: and the upper end and the lower end of the upper adapter joint 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 joint and the upper joint and between the upper adapter joint and the outer barrel.
7. The reverse circulation sand-cleaning sand collector according to claim 6, characterized in that: and the upper end and the lower end of the lower adapter are respectively provided with a sealing ring groove for mounting a sealing ring, and the sealing ring 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 cleaning collector according to claim 6 or 7, characterized in that: the sealing ring is an O-shaped sealing ring.
9. The reverse circulation sand-cleaning sand collector according to claim 8, characterized in that: the O-shaped sealing ring is made of rubber.
10. A use method of a reverse circulation sand cleaning and collecting device comprises the following steps:
(1) connecting a reverse circulation sand cleaning and collecting device to the lowest end of a sand washing pipe column, and connecting a lower connector 11 with a sand washing pen point through a male buckle at the lower end of the lower connector to perform reverse sand washing;
(2) 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 cleaning and collecting device moves upwards to reach the reverse circulation sand cleaning and collecting device; the sand mixing liquid firstly enters an inner cavity of the lower joint 11, continuously goes up to the plug 10, and then enters the inner cylinder 7 through the lower joint 9 of the inner cylinder; the mixed sand 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 mixed sand liquid flows out from a transverse sand outlet 14 on the upper joint 5 of the inner cylinder and enters an outer annular space formed by the outer cylinder 6, the inner cylinder 7 and the upper joint 5 of the inner cylinder; after the sand mixing liquid flows out of the transverse sand outlet 14, the flow rate 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 go upwards along with the sand mixing liquid through the vertical through hole 13 of the upper adapter 3; the sand mixing liquid going upward continuously passes through the vertical through hole 13 of the upper adapter 3 and the upper connector and then enters an upper tool;
(3) a sand setting stage: closing the power equipment, stopping the sand-mixing liquid from ascending, settling the sand-mixing liquid in the static state, and gradually settling and falling gravel back to the reverse circulation sand cleaning and collecting device; firstly, the gravel enters the upper joint 1, continues to fall under the action of a cone at the top end of the umbrella-shaped cap 2, passes through the transverse sand outlet 14 of the upper joint 3, falls into an outer layer annular space formed by the outer cylinder 6, the inner cylinder 7 and the upper joint 5 of the inner cylinder under the action of gravity, and is collected in the space;
(4) a cleaning stage: and (5) taking out the tool to clean gravel in the reverse circulation sand cleaning sand collector.
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| CN202010259173.0A CN113494252A (en) | 2020-04-03 | 2020-04-03 | Reverse circulation sand cleaning and collecting device and use method thereof |
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| CN202010259173.0A CN113494252A (en) | 2020-04-03 | 2020-04-03 | Reverse circulation sand cleaning and collecting device and use method thereof |
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| US20190330949A1 (en) * | 2018-04-26 | 2019-10-31 | Welltec A/S | Workover tool string |
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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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