CN202325460U - Efficient sand and gas anchor - Google Patents
Efficient sand and gas anchor Download PDFInfo
- Publication number
- CN202325460U CN202325460U CN2011204559914U CN201120455991U CN202325460U CN 202325460 U CN202325460 U CN 202325460U CN 2011204559914 U CN2011204559914 U CN 2011204559914U CN 201120455991 U CN201120455991 U CN 201120455991U CN 202325460 U CN202325460 U CN 202325460U
- Authority
- CN
- China
- Prior art keywords
- gas anchor
- gas
- oil
- sand
- efficient sand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses an efficient sand and gas anchor which is used for separating gas, liquid and sand in an oil field well. According to the utility model, the efficient sand and gas anchor is provided with a gas anchor outer casing pipe through which a center pipe penetrates; the upper end of the center pipe is provided with an oil pump joint connected with an oil pumping pump; the lower part of the center pipe is provided with a plurality of tail holes; the middle upper pipe wall of the gas anchor outer casing pipe is symmetrically provided with a plurality of oil inlet holes; the upper end of the oil inlet hole between the gas anchor outer casing pipe and the center pipe is provided with a bubble distribution element with a plurality of vertical through holes; a fixed spiral device in which a spiral channel is arranged is located at the position near the bottom end of the center pipe between two pipes; a safe casing pipe is welded at the position near the fixed spiral device on the gas anchor outer casing pipe; and the bubble distribution element and the fixed spiral device divide the space between the gas anchor outer casing pipe and the center pipe into a gas storage hollow cavity, a sedimentation hollow cavity and a sand removal cavity from bottom to top. The efficient sand and gas anchor has the advantages of simple structure, low manufacture cost, long service life and good effect and is easy to install, and the purpose of dramatically improving the oil extraction yield can be realized.
Description
Technical field
The utility model belongs to the extracting device of oil technical field of petroleum industry system, relates to a kind of efficient sand gas anchor that is used for carrying out in the down-hole, oil field gas, liquid, sand separation.
Background technology
The existing crude oil lifting in oil field equipment is main with plunger oil-well pump; When this oil well pump is worked under oil well; Suction be the mixed liquor of gas, oil, water three-phase, and the oil well of some special geologic structure also has suitable impurity such as sand grains and is present in the crude oil mixed liquor that is aspirated.Get into gas in the oil well pump, can reduce the result of use of oil well pump, influenced output; And after getting into sand grains in the oil pump, not only quickened the wearing and tearing of oil well pump, and when serious oil well pump is stuck, can't work.For solving the above problems, many for a long time oil wells all are to use gas anchor or sand gas anchor to carry out the separation of gas, liquid separation or gas, liquid, sand grains.The operating principle of traditional all kinds of down-holes gas anchor is to let mixed liquor get into gas anchor in a large number; Various runners through gas anchor make fluid circle round carry out gas in flowing, liquid separates; But the separating effect of this method is very low; Especially all the more so to down-hole viscosity greater than the fluid of 2MPas, be difficult to reach the purpose that improves pump efficiency, increases output in the The field.Some state-of-the art gas anchor products of this area development in recent years such as many Settlement Cups flow type gas anchor etc.; Though separative efficiency is improved to a certain extent; But structure is too complicated; Cost is higher, and to oil, gas mixed liquor voluntarily the spatial volume of sedimentation all design lessly so that effect is not ideal enough.Adopt with the method for wire lath resistance sand outside the pump housing and the desanding structure of existing sand gas anchor also more, result of use is also difficult fully up to expectations.
The utility model content
The purpose of the utility model is the problem that prior art exists is solved, and a kind of simple in structure, cost of manufacture is low, result of use is good efficient sand gas anchor is provided.
For the technical solution that realizes the foregoing invention purpose is such: the efficient sand gas anchor that is provided has the gas anchor outer tube that is coated with central tube in; The oil pump joint that connects with oil well pump is equipped with in the central tube upper end; Have a plurality of uropores in the central tube bottom; Symmetry has a plurality of fuel feed holes on the tube wall of the middle and upper part of gas anchor outer tube; Be positioned between gas anchor outer tube and central tube fuel feed hole upper end position place be equipped with one offered a plurality of perpendicular through holes on it the bubble distribution member; Between two pipes, the fixedly screw of warding off helical duct in one is housed near the position of central tube bottom; Be welded with a safe sleeve pipe at the gas anchor outer tube near the fixing position of screw, said bubble distribution member and fixedly screw with separated successively from bottom to top gas storage cavity, sedimentation cavity and the desanding chamber of being divided into, the space between gas anchor outer tube and central tube.
The further solution of the utility model is: on efficient sand gas anchor bubble distribution member, have perpendicular through hole of a plurality of circles or the perpendicular through hole of abnormity; Be processed with inclined-plane, an inclination angle in the upper edge of fuel feed hole; Fixedly having the helical duct that multiple tracks is communicated with up and down on the screw, the normal cross-section of helical duct is trapezoidal, semicircle or other is abnormally-structured.In the utility model structure, the volume of sedimentation cavity is 2 times of supporting oil well pump discharge capacity at least in addition, is good with 2～5 times in the enforcement.
In the practical application, efficient sand gas anchor is connected under the oil well pump through the oil pump joint.When the sand gas anchor when underground work is in pumping state, the suction that oil pump produces will produce negative pressure through each uropore of central tube and central tube bottom in the sedimentation cavity of sand gas anchor sleeve pipe.Because sand gas anchor integral body is immersed in the crude oil, will get into the sedimentation cavity through sand gas anchor oil-in so contain the crude oil mixed liquor of oil, gas, sand, water thing.With regard to traditional gas anchor structure; The space length of overlength can make the bubble in the crude oil intermittently have the longer time to be separated fully in the oil well pump pumping with sedimentation volumn; But crude oil liquid viscosity greater than 2MPas and liquid in bubble when very little; How could realize that but effective oil, gas separate, the designer has designed bubble distribution member device in gas anchor for this reason, and then has proposed a completely new concept that in sand gas anchor mixed liquor, adds proper amount of gas (air pocket); Its principle is according to Stoke's law; The speed that gas rises and bubble diameter square are directly proportional, like this when crude oil mixed liquor flows through sand gas anchor oil-in, owing to the effect of fluid dynamic and sleeve pipe sedimentation negative pressure and cavity; Gas in the sand gas anchor gas storage cavity can form through the bubble distribution member and an amount of get into sleeve pipe sedimentation cavity than air pocket with crude oil mixed liquor; When oil well pump finished the pumping stroke and gets into backhaul, sand gas anchor sleeve pipe sedimentation cavity had also just stopped negative pressure state, then be stained with minute bubbles in the consistency crude oil mixed liquor can merge soon aforesaidly rise rapidly in than air pocket (viscosity greater than the crude oil of 2MPas in effect more remarkable).When rising to the upper edge of sand gas anchor oil-in than air pocket; Owing to also be in certain negative pressure state after the formation of the portion gas in pumping stroke medium sand gas anchor gas storage cavity is pulled away than air pocket; Thereby can the air pocket that is rising be sucked sand gas anchor gas storage cavity again; Replenish source of the gas, until being full of.Air pocket unnecessary in rising then will be discharged at the outer wall of gas anchor outer tube through the upper edge of sand gas anchor oil-in.
The desanding mode of the said efficient sand gas anchor of the utility model has adopted the principle of eddy flow sedimentation.Between sand gas anchor central tube and gas anchor outer tube, be provided with the fixedly screw of warding off the multi-circle spiral flow passage in one; When oil well pump is in the pumping stroke; The crude oil that the negative pressure that the central tube uropore produces has been got rid of gas with sand gas anchor sleeve pipe sedimentation cavity bottom sucks in the central tube, and when these crude oil mixed liquors that also contain oil, water, sand during at a high speed through fixing screw, mixed liquor can produce strong rotation; Under action of centrifugal force; Heavier sand grains and water will paste outer sleeve inner wall rotation sedimentation, and be deposited in the sand gas anchor tail pipe cover always, and lighter crude oil free from foreign meter then gets into oil well pump through central tube.
Quicken the gas separation and utilize eddy flow sedimentation principle to separate the structure of sand grains except that adding air pocket; The utility model has also been made critical appropriate design to the volume of sleeve pipe sedimentation cavity; General size according to single pass pumpage of different model oil well pump and viscosity of crude; The volume of sleeve pipe sedimentation cavity is 2 times of oil well pump discharge capacity at least, is good with 2～6 times.The adequate time settling crude oil just can be arranged in the reciprocal process of oil well pump like this and discharge gas.
Compared with prior art, that the described efficient sand gas anchor of the utility model has is simple in structure, cost of manufacture is low, easy mounting, long service life, advantage such as effective, and product is extremely successful through actual tests in oil well, and oil recovery amount is improved largely.
Description of drawings
Accompanying drawing is the structural representation of a specific embodiment of the utility model.
Each label title is respectively among the figure: 1-oil pump joint, and the 2-fuel feed hole, 3-gas anchor outer tube, the 4-central tube, 5-sedimentation cavity, 6-tail pipe cover, the 7-uropore, 8-is screw fixedly, 9-gas storage cavity, 10-bubble distribution member, 11-safety sleeve pipe.
The specific embodiment
Below will combine accompanying drawing that the utility model content is further specified, but the actual fabrication structure of the utility model is not limited in following embodiment.
Referring to accompanying drawing; The described efficient sand gas anchor of the utility model mainly is made up of parts such as gas anchor outer tube 3, central tube 4, oil pump joint 1, tail pipe covers 6; Vertically fixing with one heart of gas anchor outer tube 3 and central tube 4; Central tube 4 upper ends connect with oil well pump through oil pump joint 1, and central tube 4 bottoms have a plurality of uropores 7.Symmetry has four fuel feed holes 2 on the tube wall of the middle and upper part of gas anchor outer tube 3; Be positioned at fuel feed hole 2 upper end position places at gas anchor outer tube 3 and 4 of central tubes bubble distribution member 10 is housed; Have perpendicular through hole of a plurality of circles or the perpendicular through hole of abnormity on this bubble distribution member 10, be processed with inclined-plane, an inclination angle in the upper edge of fuel feed hole 2; In addition between two pipes, fixedly screw 8 is housed near the position of central tube 4 bottoms, this fixedly screw 8 be provided with many circles helical ducts of UNICOM up and down, the normal cross-section of its helical duct is trapezoidal a, semicircle or other is abnormally-structured.The utility model through above-mentioned bubble distribution member 10 and fixedly screw 8 space with 4 of gas anchor outer tube 3 and central tubes is set from bottom to top successively at a distance from being divided into gas storage cavity 9, sedimentation cavity 5 and desanding chamber, wherein the volume of sedimentation cavity is 2～5 times of supporting oil well pump discharge capacity.When separating owing to oil-sand, the sand grains of high-speed motion cause bigger wearing and tearing can for the inwall of gas anchor outer tube 3, is the accident that prevents that the outer tube fracture from causing, and is special at safe sleeve pipe 11 of gas anchor outer tube 3 approaching fixedly screw 8 positions welding.
Claims (6)
1. efficient sand gas anchor; It is characterized in that having the gas anchor outer tube (3) that is coated with central tube (4) in; Oil pump joint (1) is equipped with in central tube (4) upper end; Have a plurality of uropores (7) in central tube (4) bottom; Symmetry has a plurality of fuel feed holes (2) on the middle and upper part tube wall of gas anchor outer tube (3); Be positioned between gas anchor outer tube (3) and central tube (4) fuel feed hole (2) upper end position place be equipped with one offered a plurality of perpendicular through holes on it bubble distribution member (10); Near the position of central tube (4) bottom the fixedly screw (8) of warding off helical duct in one is housed at two pipes between (3,4), is welded with a safe sleeve pipe (11) near the fixing position of screw (8) at gas anchor outer tube (3), said bubble distribution member (10) and fixedly screw (8) with separated successively from bottom to top gas storage cavity (9), sedimentation cavity (5) and the desanding chamber of being divided into, the space between gas anchor outer tube (3) and central tube (4).
2. efficient sand gas anchor according to claim 1 is characterized in that on bubble distribution member (10), having perpendicular through hole of a plurality of circles or the perpendicular through hole of abnormity.
3. efficient sand gas anchor according to claim 1 is characterized in that being processed with inclined-plane, an inclination angle in the upper edge of fuel feed hole (2).
4. efficient sand gas anchor according to claim 1 is characterized in that fixedly having the helical duct that multiple tracks is communicated with up and down on the screw (8), and the normal cross-section of helical duct is trapezoidal, semicircle or other is abnormally-structured.
5. efficient sand gas anchor according to claim 1, the volume that it is characterized in that sedimentation cavity (5) are 2 times of supporting oil well pump discharge capacity at least.
6. according to claim 1 or 5 described efficient sand gas anchors, the volume that it is characterized in that sedimentation cavity (5) is 2～5 times of supporting oil well pump discharge capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204559914U CN202325460U (en) | 2011-11-16 | 2011-11-16 | Efficient sand and gas anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204559914U CN202325460U (en) | 2011-11-16 | 2011-11-16 | Efficient sand and gas anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202325460U true CN202325460U (en) | 2012-07-11 |
Family
ID=46437442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204559914U Expired - Fee Related CN202325460U (en) | 2011-11-16 | 2011-11-16 | Efficient sand and gas anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202325460U (en) |
-
2011
- 2011-11-16 CN CN2011204559914U patent/CN202325460U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101377126B (en) | Corrugation-shaped sedimentation cup and multiple-cup equal flow type gas anchor | |
| CN203285416U (en) | Downhole oil-water separation device of double electric submersible pump | |
| CN101446281B (en) | Drainage device for coal bed gas well electric submersible centrifugal pump | |
| CN104747162B (en) | Deep-sea multiphase multi-stage separation re-injection system | |
| CN108222914B (en) | Membrane material underground oil-water separation device, production pipe column and oil-water separation method | |
| CN103883305B (en) | Deepwater seabed oil and water separation and reinjection device | |
| CN200996291Y (en) | Oil-vapour separater under well | |
| CN202417467U (en) | Underground liquid-sand separator | |
| CN102102507B (en) | Double-cavity sand and gas anchor | |
| CN210530785U (en) | Bailing pipe column | |
| CN202325460U (en) | Efficient sand and gas anchor | |
| CN211692433U (en) | Underground three-phase separator | |
| CN108854163A (en) | A kind of oleophylic filler Gravity Separation oily-water seperating equipment and separation method | |
| CN201763310U (en) | High efficiency down-hole gas-liquid separation device | |
| CN201620826U (en) | Bottom-water reservoir oil-water zoned string | |
| EP2685046B1 (en) | Crown-shaped separation device for separating oil and water in well | |
| CN216617490U (en) | Multistage overflow gas-liquid cyclone separation device | |
| CN203035178U (en) | Pumping well sand setting gas anchor | |
| CN106733243A (en) | Down-hole oil production multi-chamber spiral-flow type crude separation device | |
| CN103835693A (en) | Instability prevention fine separation series type hydraulic cyclone oil-water separator | |
| RU163125U1 (en) | GAS SAND ANCHOR FOR WELLS WITH LARGE DEBIT | |
| CN203783533U (en) | Oil production system of waterpower oil-submerged pump | |
| CN205591906U (en) | Oil water separator and piece -rate system in pit | |
| CN201068792Y (en) | Corrugated settling cup and multi-cup iso-flow rate anchor | |
| CN203879481U (en) | Pumping well spiral type multi-phase separator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20121116 |