CN201763310U - High efficiency down-hole gas-liquid separation device - Google Patents
High efficiency down-hole gas-liquid separation device Download PDFInfo
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- CN201763310U CN201763310U CN2010205350812U CN201020535081U CN201763310U CN 201763310 U CN201763310 U CN 201763310U CN 2010205350812 U CN2010205350812 U CN 2010205350812U CN 201020535081 U CN201020535081 U CN 201020535081U CN 201763310 U CN201763310 U CN 201763310U
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Abstract
The utility model relates to a down-hole gas-liquid separation device of an oil and gas well with high gas-liquid ratio and high gas production rate, particularly a high efficiency down-hole gas-liquid separation device including a gravity type separator and a screw type separator, the upper end of the gravity type separator and the lower end of the screw type separator are fixedly installed via thread. The device in the utility model is reasonable and compact in structure, and convenient in use, the separation of gas can have enough stroke and gas storage space by serially connected the gravity type separator and the screw type separator and lengthening the screw type separator, when the device is used in the oil and gas well with high gas-liquid ratio and high gas production rate, therefore, the efficiency of the three-phase separation of liquid, gas and sand are greatly improved and the pump efficiency of an oil pump are also greatly improved.
Description
Technical field
The utility model relates to high gas-liquid ratio, high yield gas gauging gas well downhole gas liquid/gas separator, is a kind of efficient downhole gas liquid/gas separator.
Background technology
Gas anchor or downhole oil gas separating device are to be based upon on the basis of hydrocarbon density difference, utilize slippage effect, centrifugal effect, capture effect and gas cap exhaust effect to carry out Oil-gas Separation.At present both at home and abroad the gas anchor that uses is divided into spiral gas anchor, gravity gas anchor, packer type gas anchor by operating principle, its concrete structure type mainly contain uncovered gas anchor, import band screen casing gas anchor, sinking gas anchor, twin-stage gas anchor, lower end have froth breaker multistage gas anchor, disc type gas anchor, have the disc type gas anchor of stack, the gas anchor that distributes based on liquid stream crossfire, gas anchor, umbrella formula gas anchor, packer gas anchor, spiral gas anchor, spiral and the gravity combined type gas anchor etc. that crossfire combines with shunting.Gas-liquid separator mainly is to design at the well that hangs down gas production under the open well, mostly seen certain effect at home and abroad in the application of such all kinds of oil gas wells, but in the oil and gas well structure design of high gas-liquid ratio, high yield tolerance, exist too problems such as weak point, spiral gas anchor gas storage space deficiency of gravity gas anchor stroke, make that the separative efficiency in the high gas-liquid ratio well is lower, have a strong impact on pump efficiency.
Summary of the invention
The utility model provides a kind of efficient downhole gas liquid/gas separator, has overcome the deficiency of above-mentioned prior art, and it is lower that it can effectively solve under the existing well gas-liquid separator separative efficiency in the oil gas well of high gas-liquid ratio, high yield tolerance, has a strong impact on the problem of pump efficiency.
The technical solution of the utility model realizes by following measure: a kind of efficient downhole gas liquid/gas separator, comprise gravitational separator and spiral separator, the upper end of gravitational separator and the lower end of spiral separator are fixedly installed togather by screw thread.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Above-mentioned gravitational separator can comprise plug, suck outer tube, suck core barrel, following oil connection, suck the core barrel joint, fuel inlet fitting, screen casing and under set upright joint, the lower end that sucks outer tube is installed with plug, sucking the outside, upper end of outer tube and the inboard, lower end of following oil connection is fixedly installed togather by screw thread, the inboard, upper end of following oil connection is fixedly installed togather by the outside, lower end of screw thread and fuel inlet fitting, there is boss inboard, middle part at fuel inlet fitting, sucking the outside, upper end of core barrel joint and the inboard of boss is fixedly installed togather by screw thread, the inboard outside, upper end with the suction core barrel, lower end that sucks the core barrel joint is fixedly installed togather by screw thread, the outside, lower end of suction core barrel is fixedly installed togather by the outside, upper end of screen joint and screw thread and screen casing, the lower end of screen casing is fixedly installed togather by screw thread with the following upper end of setting upright joint, fuel inlet fitting, following oil connection, suck outer tube and suck the core barrel joint, suck core barrel, screen joint, screen casing, under set upright between the joint and to form oil inlet passage down, suck the core barrel joint, suck core barrel, screen joint, screen casing is set upright the last oil inlet passage that formation is connected with following oil inlet passage in the joint with following, is distributed with being of at least one fuel feed hole high outside and low outside and that be connected with following oil inlet passage on fuel inlet fitting.
Can be installed with the desilting pipe of at least one between above-mentioned suction outer tube and the plug by screw thread, at least one group baffle plate and separate cup are installed on screen casing at interval, baffle plate is the wide shape in narrow centre, two ends, and all there is hole spaced apart the top and bottom of separate cup.
Above-mentioned spiral separator can comprise the porous joint, joint, become the snapping hoop, in set upright joint, the center drainage tube, drainage tube, following core barrel joint, the drainage tube box cupling, the spiral outer tube, helix tube, following core barrel joint, the stage casing outer tube, stage casing outer tube lower contact, following tubing nipple, the stage casing core barrel, stage casing outer tube top connection, stage casing core barrel joint, stage casing core barrel seal nipple, the epimere outer tube, the epimere core barrel, on set upright joint, epimere core barrel joint, outlet valve, top connection, last tubing nipple and last oil connection; The porous joint comprises upper bush, plug and lower sleeve, the outside, lower end of upper bush is fixed together with the inboard, upper end of lower sleeve, the external diameter of lower sleeve is greater than the external diameter of upper bush, inboard outer end with plug, the lower end of upper bush is fixed together, that at least one is arranged on the inwall of upper bush and the axially extending bore lower sleeve intracavity inter-connection have at least one radial direction through hole on upper bush; The outside, upper end of fuel inlet fitting is installed together by screw thread with the inboard, lower end of lower sleeve, the inboard upper outside with lower sleeve in the lower end of stage casing outer tube is fixedly installed togather by screw thread, the inboard outside, lower end with stage casing outer tube lower contact, the upper end of stage casing outer tube is fixedly installed togather by screw thread, the inboard outside, lower end with following tubing nipple, the upper end of stage casing outer tube lower contact is fixedly installed togather by screw thread, the inboard, lower end of the upper end outside stage casing outer tube top connection of following tubing nipple is fixedly installed togather by screw thread, the outside, upper end of stage casing outer tube top connection is fixedly installed togather by screw thread with the inboard, lower end of epimere outer tube, the inboard outside, lower end with top connection, the upper end of epimere outer tube is fixedly installed togather by screw thread, and top connection and last oil connection are fixedly installed togather by last tubing nipple; The inboard outside, upper end with upper bush, lower end that becomes the snapping hoop is fixedly installed togather by screw thread, the inboard outside, lower end with drainage tube, upper end that becomes the snapping hoop is fixedly installed togather by screw thread, and the outside, upper end of drainage tube and the outside, lower end of spiral outer tube are fixedly installed togather by the drainage tube box cupling; The inboard outside, lower end with joint, the upper end of upper bush is fixedly installed togather by screw thread, the inboard, upper end of joint with in set upright joint the lower end outside be sleeved on, in set upright joint the inboard outside, lower end, upper end with the center drainage tube be fixedly installed togather by screw thread, the outside, upper end of center drainage tube and the outside, lower end of helix tube are fixedly installed togather by following core barrel joint, on helix tube, be evenly equipped with spiral, the outside, upper end of helix tube is fixedly installed togather by following core barrel joint with the outside, lower end of stage casing core barrel, the outside, upper end of stage casing core barrel is fixedly installed togather by stage casing core barrel joint with stage casing core barrel seal nipple, the top of stage casing core barrel seal nipple is sleeved on the bottom of setting upright joint and keeps sealing, on set upright the upper inner of joint and epimere core barrel the outside, lower end be fixedly installed togather by screw thread, be intervally distributed with the head of setting upright of at least one at the last middle part of setting upright joint, the outside, upper end of epimere core barrel is fixedly installed togather by epimere core barrel joint with the inboard, lower end of top connection; The outlet valve that can be connected with the epimere outer tube bore is installed in top connection; Form helical cavity between spiral outer tube and the helix tube, venthole is arranged at the top of helical cavity, on the spiral outer tube, be distributed with the fluid hole of at least one, upper bush, become the snapping hoop, drainage tube, the drainage tube box cupling with in set upright joint, the center drainage tube, form the following gas-liquid channel that is connected with axially extending bore and helical cavity respectively between the following core barrel joint, upper bush, become the snapping hoop, drainage tube, the drainage tube box cupling, form fluid course between spiral outer tube and the stage casing outer tube, fluid course is connected with helical cavity by fluid hole, and fluid course is by the intracavity inter-connection of radial direction through hole on the upper bush and upper bush.
Between outer tube top connection of above-mentioned stage casing and the epimere outer tube extension pipe can be arranged, this extension pipe comprises that lengthening outer tube, lengthening set upright joint, lengthening core barrel, lengthening core barrel joint, lengthening core barrel seal nipple, the top connection of lengthening outer tube, lengthening outer tube lower contact and lengthening tubing nipple; The outside, upper end of stage casing outer tube top connection is fixedly installed togather by screw thread with the inboard, lower end of lengthening outer tube, the inboard outside, lower end with the lower contact of lengthening outer tube, the upper end of lengthening outer tube is fixedly installed togather by screw thread, the inboard outside, lower end with the lengthening tubing nipple, the upper end of lengthening outer tube lower contact is fixedly installed togather by screw thread, the outside, upper end of lengthening tubing nipple is fixedly installed togather by screw thread with the inboard, lower end of lengthening outer tube top connection, and the outside, upper end of lengthening outer tube top connection is fixedly installed togather by screw thread with the inboard, lower end of epimere outer tube; The top of stage casing core barrel seal nipple is sleeved on lengthening and sets upright on the bottom of joint and the maintenance sealing, lengthening is set upright the upper inner of joint and the outside, lower end of lengthening core barrel is fixedly installed togather by screw thread, the upper end of lengthening core barrel is fixedly installed togather by lengthening core barrel joint with the lower end of lengthening core barrel seal nipple, and the top of lengthening core barrel seal nipple is sleeved on the bottom of setting upright joint and keeps sealing.
The axial installing hole that is connected with the epimere outer tube bore can be arranged on the inwall of above-mentioned top connection, outlet valve comprises valve seat, valve bonnet and valve ball, the bottom of valve seat is fixedly mounted in the top of axial installing hole, upper outside at valve seat is installed with valve bonnet, venthole is arranged on valve bonnet, valve ball is arranged in the upper seat of valve seat.
Setting upright on above-mentioned on the bottom of joint to have seal groove, and sealing ring is installed in seal groove.
Above-mentioned lengthening is set upright on the bottom of joint can seal groove, and sealing ring is installed in seal groove, in set upright on the bottom of joint seal groove arranged, sealing ring is installed in seal groove.
The utility model reasonable and compact in structure, easy to use, when the oil gas well of high gas-liquid ratio, high yield tolerance uses, by gravitational separator and spiral separator are connected, and the length of lengthening spiral separator, gas is separated enough strokes and gas storage space, has therefore greatly improved the efficient of liquid, gas, sand three phase separation, and the pump efficiency of oil well pump also is greatly improved.
Description of drawings
Accompanying drawing 1 is looked the half section structural representation for the master of gravitational separator in the utility model.
Accompanying drawing 2 is looked the half section structural representation for the master of spiral separator hypomere when helmet is installed in the utility model.
Accompanying drawing 3 is looked the half section structural representation for the master of spiral separator epimere when helmet is installed in the utility model.
Accompanying drawing 4 is looked the half section structural representation for the master of spiral separator lengthening section in the utility model when helmet is installed.
Coding in the accompanying drawing is respectively: 1 is plug, and 2 for sucking outer tube, and 3 for sucking core barrel, 4 is oil connection, and 5 for sucking the core barrel joint, and 6 is fuel inlet fitting, 7 is screen casing, 8 under set upright joint, 9 is screen joint, 10 is baffle plate, and 11 is separate cup, and 12 is boss, 13 are following oil inlet passage, and 14 is last oil inlet passage, and 15 is fuel feed hole, 16 is the desilting pipe, and 17 is upper bush, and 18 is joint, 19 for becoming the snapping hoop, and 20 set upright joint in being, 21 is the center drainage tube, 22 is drainage tube, and 23 are following core barrel joint, and 24 is the drainage tube box cupling, 25 is the spiral outer tube, and 26 is helix tube, and 27 are following core barrel joint, 28 is the stage casing outer tube, 29 is stage casing outer tube lower contact, and 30 are following tubing nipple, and 31 is the stage casing core barrel, 32 is stage casing outer tube top connection, 33 is stage casing core barrel joint, and 34 is stage casing core barrel seal nipple, and 35 is the epimere outer tube, 36 is the epimere core barrel, 37 on set upright joint, 38 be epimere core barrel joint, 39 are top connection, 40 is last tubing nipple, 41 is last oil connection, and 42 is plug, and 43 is lower sleeve, 44 is the lower sleeve inner chamber, 45 is axially extending bore, and 46 is radial direction through hole, and 47 is spiral, 48 for setting upright head, 49 is the epimere outer tube bore, and 50 is helical cavity, and 51 is venthole, 52 are following gas-liquid channel, 53 is fluid course, and 54 is fluid hole, and 55 are the lengthening outer tube, 56 is that lengthening is set upright joint, 57 are the lengthening core barrel, and 58 are lengthening core barrel seal nipple, and 59 is axial installing hole, 60 is valve seat, 61 is valve bonnet, and 62 is valve ball, and 63 is steam vent, 64 is sealing ring, 65 is helmet, and 66 are lengthening core barrel joint, and 67 are the top connection of lengthening outer tube, 68 are the lower contact of lengthening outer tube, and 69 are the lengthening tubing nipple.
The specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
In the utility model, for convenience of description, the description of the relative position relation of each parts all is that the Butut mode according to Figure of description is described, as: the position relation of upper and lower, left and right etc. is what to determine according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
Shown in accompanying drawing 1 to 4, this efficient downhole gas liquid/gas separator comprises gravitational separator and spiral separator, and the upper end of gravitational separator and the lower end of spiral separator are fixedly installed togather by screw thread.
Can according to actual needs above-mentioned efficient downhole gas liquid/gas separator be made further optimization and/or improvements:
As shown in Figure 1, gravitational separator comprises plug 1, suck outer tube 2, suck core barrel 3, following oil connection 4, suck core barrel joint 5, fuel inlet fitting 6, screen casing 7 and under set upright joint 8, the lower end that sucks outer tube is installed with plug 1, sucking the outside, upper end of outer tube 2 and the inboard, lower end of following oil connection 4 is fixedly installed togather by screw thread, the inboard, upper end of following oil connection 4 is fixedly installed togather by the outside, lower end of screw thread and fuel inlet fitting 6, there is boss 12 inboard, middle part at fuel inlet fitting 6, sucking the outside, upper end of core barrel joint 5 and the inboard of boss 12 is fixedly installed togather by screw thread, the inboard outside, upper end with suction core barrel 3, lower end that sucks core barrel joint 5 is fixedly installed togather by screw thread, the outside, lower end of suction core barrel 3 is fixedly installed togather by the outside, upper end of screen joint 9 and screw thread and screen casing 7, the lower end of screen casing 7 is fixedly installed togather by screw thread with the following upper end of setting upright joint 8, fuel inlet fitting 6, following oil connection 4, suck outer tube 2 and suck core barrel joint 5, suck core barrel 3, screen joint 9, screen casing 7, under set upright between the joint 8 and to form oil inlet passage 13 down, suck core barrel joint 5, suck core barrel 3, screen joint 9, screen casing 7 and following setting upright form the last oil inlet passages 14 that are connected with following oil inlet passage 13 in the joint 8, be distributed with being of at least one fuel feed hole 15 high outside and low outside and that be connected with following oil inlet passage 13 on fuel inlet fitting 6.
As shown in Figure 1, suck between outer tube 2 and the plug 1 the desilting pipe 16 that is installed with at least one by screw thread, at least one group baffle plate 10 and separate cup 11 are installed on screen casing 7 at interval, baffle plate 10 is the wide shape in narrow centre, two ends, and all there is hole spaced apart the top and bottom of separate cup 11.
Shown in accompanying drawing 1 to 3, spiral separator comprises the porous joint, joint 18, become snapping hoop 19, in set upright joint 20, center drainage tube 21, drainage tube 22, following core barrel joint 23, drainage tube box cupling 24, spiral outer tube 25, helix tube 26, following core barrel joint 27, stage casing outer tube 28, stage casing outer tube lower contact 29, following tubing nipple 30, stage casing core barrel 31, stage casing outer tube top connection 32, stage casing core barrel joint 33, stage casing core barrel seal nipple 34, epimere outer tube 35, epimere core barrel 36, on set upright joint 37, epimere core barrel joint 38, outlet valve, top connection 39, last tubing nipple 40 and last oil connection 41; The porous joint comprises upper bush 17, plug 42 and lower sleeve 43, the outside, lower end of upper bush 17 is fixed together with the inboard, upper end of lower sleeve 43, the external diameter of lower sleeve 43 is greater than the external diameter of upper bush 17, inboard outer end with plug 42, the lower end of upper bush 17 is fixed together, the axially extending bore 45 that is connected with lower sleeve inner chamber 44 that at least one is arranged on the inwall of upper bush 17 has at least one radial direction through hole 46 on upper bush 17; The outside, upper end of fuel inlet fitting 6 is installed together by screw thread with the inboard, lower end of lower sleeve 43, the inboard upper outside with lower sleeve 43 in the lower end of stage casing outer tube 28 is fixedly installed togather by screw thread, the inboard outside, lower end with stage casing outer tube lower contact 29, the upper end of stage casing outer tube 28 is fixedly installed togather by screw thread, the inboard outside, lower end with following tubing nipple 30, the upper end of stage casing outer tube lower contact 29 is fixedly installed togather by screw thread, the outside, upper end of following tubing nipple 30 is fixedly installed togather by screw thread with the inboard, lower end of stage casing outer tube top connection 32, the outside, upper end of stage casing outer tube top connection 32 is fixedly installed togather by screw thread with the inboard, lower end of epimere outer tube 35, the inboard outside, lower end with top connection 39, the upper end of epimere outer tube 35 is fixedly installed togather by screw thread, and top connection 39 and last oil connection 41 are fixedly installed togather by last tubing nipple 40; The inboard outside, upper end with upper bush 17, lower end that becomes snapping hoop 19 is fixedly installed togather by screw thread, the inboard outside, lower end with drainage tube 22, upper end that becomes snapping hoop 19 is fixedly installed togather by screw thread, and the outside, upper end of drainage tube 22 and the outside, lower end of spiral outer tube 25 are fixedly installed togather by drainage tube box cupling 24; The inboard outside, lower end with joint 18, the upper end of upper bush 17 is fixedly installed togather by screw thread, the inboard, upper end of joint 18 with in set upright joint 20 the lower end outside be sleeved on, in set upright joint 20 the inboard outside, lower end, upper end with center drainage tube 21 be fixedly installed togather by screw thread, the outside, upper end of center drainage tube 21 and the outside, lower end of helix tube 26 are fixedly installed togather by following core barrel joint 23, on helix tube 26, be evenly equipped with spiral 47, the outside, upper end of helix tube 26 is fixedly installed togather by following core barrel joint 27 with the outside, lower end of stage casing core barrel 31, the outside, upper end of stage casing core barrel 31 is fixedly installed togather by stage casing core barrel joint 33 with stage casing core barrel seal nipple 34, the top of stage casing core barrel seal nipple 34 is sleeved on the bottom of setting upright joint 37 and keeps sealing, on set upright the upper inner of joint 37 and epimere core barrel 36 the outside, lower end be fixedly installed togather by screw thread, what be intervally distributed with at least one at the last middle part of setting upright joint 37 sets upright 48, and the outside, upper end of epimere core barrel 36 is fixedly installed togather by epimere core barrel joint 38 with the inboard, lower end of top connection 39; The outlet valve that can be connected with epimere outer tube bore 49 is installed in top connection 39; Form helical cavity 50 between spiral outer tube 25 and the helix tube 26, venthole 51 is arranged at the top of helical cavity 50, on spiral outer tube 25, be distributed with the fluid hole 54 of at least one, upper bush 17, become snapping hoop 19, drainage tube 22, drainage tube box cupling 24 with in set upright joint 20, center drainage tube 21, form the following gas-liquid channel 52 that is connected with axially extending bore 45 and helical cavity 50 respectively between the following core barrel joint 23, upper bush 17, become snapping hoop 19, drainage tube 22, drainage tube box cupling 24, form fluid course 53 between spiral outer tube 25 and the stage casing outer tube 28, fluid course 53 is connected with helical cavity 50 by fluid hole 54, and fluid course 53 is by the intracavity inter-connection of the radial direction through hole on the upper bush 17 46 with upper bush 17.
Shown in accompanying drawing 2,3,4, between stage casing outer tube top connection 32 and the epimere outer tube 35 extension pipe is arranged, this extension pipe comprises that lengthening outer tube 55, lengthening set upright joint 56, lengthening core barrel 57, lengthening core barrel joint 66, lengthening core barrel seal nipple 58, lengthening outer tube top connection 67, lengthening outer tube lower contact 68 and lengthening tubing nipple 69; The outside, upper end of stage casing outer tube top connection 32 is fixedly installed togather by screw thread with the inboard, lower end of lengthening outer tube 55, the inboard outside, lower end with lengthening outer tube lower contact 68, the upper end of lengthening outer tube 55 is fixedly installed togather by screw thread, the inboard outside, lower end with lengthening tubing nipple 69, the upper end of lengthening outer tube lower contact 68 is fixedly installed togather by screw thread, the outside, upper end of lengthening tubing nipple 69 is fixedly installed togather by screw thread with the inboard, lower end of lengthening outer tube top connection 67, and the outside, upper end of lengthening outer tube top connection 67 is fixedly installed togather by screw thread with the inboard, lower end of epimere outer tube 35; The top of stage casing core barrel seal nipple 34 is sleeved on lengthening and sets upright on the bottom of joint 56 and the maintenance sealing, lengthening is set upright the upper inner of joint 56 and the outside, lower end of lengthening core barrel 57 is fixedly installed togather by screw thread, the upper end of lengthening core barrel 57 is fixedly installed togather by lengthening core barrel joint 66 with the lower end of lengthening core barrel seal nipple 58, the top of lengthening core barrel seal nipple 58 is sleeved on the bottom of setting upright joint 37 and keeps sealing, like this, by increasing extension pipe, make spiral separation that enough strokes and gas storage space be arranged.
As shown in Figure 3, the axial installing hole 59 that is connected with epimere outer tube bore 49 is arranged on the inwall of top connection 39, outlet valve comprises valve seat 60, valve bonnet 61 and valve ball 62, the bottom of valve seat 60 is fixedly mounted in the top of axial installing hole 59, upper outside at valve seat 60 is installed with valve bonnet 61, steam vent 63 is arranged on valve bonnet 61, upper seat at valve seat 60 has the valve ball 62 that can seal up valve base cavity, like this, when the pump down stroke, because action of pressure, gas backs down valve ball 62 and enter in the oil jacket annular space.
As shown in Figure 3, in order to increase sealing, on set upright on the bottom of joint 37 seal groove arranged, sealing ring 64 is installed in seal groove.
Shown in accompanying drawing 2,4, in order to increase sealing, lengthening is set upright on the bottom of joint 56 seal groove, and sealing ring 64 is installed in seal groove, in set upright on the bottom of joint 20 seal groove arranged, sealing ring 64 is installed in seal groove.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of the utility model most preferred embodiment: at first helmet 65 is disassembled during installation, to go up oil connection 41 is fixedly installed togather with oil well pump, successively each section is being installed together, during the oil well pump upstroke, live crude enters into oil inlet passage 14 again after the fuel feed hole 15 of fuel inlet fitting 6 enters into down oil inlet passage 13, utilize gas in the well liquid, sand, the density contrast of liquid, the time that twice commutation of well liquid flowed and well liquid flows and stops in following oil inlet passage 13 and last oil inlet passage 14, gas a large amount of in the well liquid and sand grains are separated, isolated gas (bubble) is collected at and sucks core barrel 3 and the top that sucks outer tube 2 little annular spaces, when the oil well pump down stroke, because fuel inlet fitting 6 stops feed liquor, rely on the density contrast of gas-liquid, gas enters the discharge of tubing and casing annular space from the fuel feed hole 15 of fuel inlet fitting 6, solid phases such as isolated sand grains sink in the sand sediment pipe 16 at last through the precipitation and the deceleration of baffle plate 10 and separate cup 11, remove when the inspection pump.Separate the less crude oil of back air content and be collected at suction core barrel 3 bottoms, enter spiral separator along sucking core barrel 3.When the oil well pump upstroke, rely on the effect of pump intake pressure, rotation at a high speed in helical cavity 50, at sufficiently long eddy flow in the time, minute bubbles in the well liquid will be assembled formation than air pocket to helical cavity 50 centers, and part " totally " well liquid will be thrown in the fluid course 53 by fluid hole 54, work as gas, when liquid arrives the venthole 51 of helical cavity 50, remaining " totally " well liquid will continue to be thrown in the fluid course 53, " totally " well liquid in the fluid course 53 is descending along spiral outer tube 25, contained gas will further separate in " totally " well liquid in this process, well liquid enters in the center drainage tube 21 through the radial direction through hole 46 of porous joint, again along the inner chamber of center drainage tube 21, the inner chamber of following core barrel joint 23, the inner chamber of helix tube 26, the inner chamber of following core barrel joint 27, the inner chamber of stage casing core barrel 31, the inner chamber of stage casing core barrel joint 33, lengthening is set upright the inner chamber of joint 56, the inner chamber of lengthening core barrel 57, the inner chamber of lengthening core barrel joint 66, on set upright the inner chamber of joint 37, the inner chamber of epimere core barrel 36, the inner chamber of epimere core barrel joint 38, the inner chamber of top connection 39, the suction side of the up in regular turn arrival pump of inner chamber of the inner chamber of last tubing nipple 40 and last oil connection 41 is siphoned away by oil well pump.And gas will upwards move in regular turn by the annular space between the annular space between the annular space between stage casing core barrel 31 and the following tubing nipple 30, stage casing core barrel seal nipple 34 and the lengthening outer tube 55, lengthening core barrel 57 and the lengthening outer tube 55, the annular space that extends between core barrel seal nipple 58 and the epimere outer tube 35 and enter at last in the epimere outer tube bore 49, gas in the epimere outer tube bore 49 will be when the pump down stroke, because action of pressure is opened outlet valve the gas in the epimere outer tube bore 49 is entered in the oil jacket annular space.
Claims (10)
1. an efficient downhole gas liquid/gas separator is characterized in that comprising gravitational separator and spiral separator, and the upper end of gravitational separator and the lower end of spiral separator are fixedly installed togather by screw thread.
2. efficient downhole gas liquid/gas separator according to claim 1, it is characterized in that gravitational separator comprises plug, suck outer tube, suck core barrel, following oil connection, suck the core barrel joint, fuel inlet fitting, screen casing and under set upright joint, the lower end that sucks outer tube is installed with plug, sucking the outside, upper end of outer tube and the inboard, lower end of following oil connection is fixedly installed togather by screw thread, the inboard, upper end of following oil connection is fixedly installed togather by the outside, lower end of screw thread and fuel inlet fitting, there is boss inboard, middle part at fuel inlet fitting, sucking the outside, upper end of core barrel joint and the inboard of boss is fixedly installed togather by screw thread, the inboard outside, upper end with the suction core barrel, lower end that sucks the core barrel joint is fixedly installed togather by screw thread, the outside, lower end of suction core barrel is fixedly installed togather by the outside, upper end of screen joint and screw thread and screen casing, the lower end of screen casing is fixedly installed togather by screw thread with the following upper end of setting upright joint, fuel inlet fitting, following oil connection, suck outer tube and suck the core barrel joint, suck core barrel, screen joint, screen casing, under set upright between the joint and to form oil inlet passage down, suck the core barrel joint, suck core barrel, screen joint, screen casing is set upright the last oil inlet passage that formation is connected with following oil inlet passage in the joint with following, is distributed with being of at least one fuel feed hole high outside and low outside and that be connected with following oil inlet passage on fuel inlet fitting.
3. efficient downhole gas liquid/gas separator according to claim 2, it is characterized in that sucking between outer tube and the plug desilting pipe that is installed with at least one by screw thread, at least one group baffle plate and separate cup are installed on screen casing at interval, baffle plate is the wide shape in narrow centre, two ends, and all there is hole spaced apart the top and bottom of separate cup.
4. according to claim 2 or 3 described efficient downhole gas liquid/gas separators, it is characterized in that spiral separator comprises the porous joint, joint, become the snapping hoop, in set upright joint, the center drainage tube, drainage tube, following core barrel joint, the drainage tube box cupling, the spiral outer tube, helix tube, following core barrel joint, the stage casing outer tube, stage casing outer tube lower contact, following tubing nipple, the stage casing core barrel, stage casing outer tube top connection, stage casing core barrel joint, stage casing core barrel seal nipple, the epimere outer tube, the epimere core barrel, on set upright joint, epimere core barrel joint, outlet valve, top connection, last tubing nipple and last oil connection; The porous joint comprises upper bush, plug and lower sleeve, the outside, lower end of upper bush is fixed together with the inboard, upper end of lower sleeve, the external diameter of lower sleeve is greater than the external diameter of upper bush, inboard outer end with plug, the lower end of upper bush is fixed together, that at least one is arranged on the inwall of upper bush and the axially extending bore lower sleeve intracavity inter-connection have at least one radial direction through hole on upper bush; The outside, upper end of fuel inlet fitting is installed together by screw thread with the inboard, lower end of lower sleeve, the inboard upper outside with lower sleeve in the lower end of stage casing outer tube is fixedly installed togather by screw thread, the inboard outside, lower end with stage casing outer tube lower contact, the upper end of stage casing outer tube is fixedly installed togather by screw thread, the inboard outside, lower end with following tubing nipple, the upper end of stage casing outer tube lower contact is fixedly installed togather by screw thread, the outside, upper end of following tubing nipple is fixedly installed togather by screw thread with the inboard, lower end of stage casing outer tube top connection, the outside, upper end of stage casing outer tube top connection is fixedly installed togather by screw thread with the inboard, lower end of epimere outer tube, the inboard outside, lower end with top connection, the upper end of epimere outer tube is fixedly installed togather by screw thread, and top connection and last oil connection are fixedly installed togather by last tubing nipple; The inboard outside, upper end with upper bush, lower end that becomes the snapping hoop is fixedly installed togather by screw thread, the inboard outside, lower end with drainage tube, upper end that becomes the snapping hoop is fixedly installed togather by screw thread, and the outside, upper end of drainage tube and the outside, lower end of spiral outer tube are fixedly installed togather by the drainage tube box cupling; The inboard outside, lower end with joint, the upper end of upper bush is fixedly installed togather by screw thread, the inboard, upper end of joint with in set upright joint the lower end outside be sleeved on, in set upright joint the inboard outside, lower end, upper end with the center drainage tube be fixedly installed togather by screw thread, the outside, upper end of center drainage tube and the outside, lower end of helix tube are fixedly installed togather by following core barrel joint, on helix tube, be evenly equipped with spiral, the outside, upper end of helix tube is fixedly installed togather by following core barrel joint with the outside, lower end of stage casing core barrel, the outside, upper end of stage casing core barrel is fixedly installed togather by stage casing core barrel joint with stage casing core barrel seal nipple, the top of stage casing core barrel seal nipple is sleeved on the bottom of setting upright joint and keeps sealing, on set upright the upper inner of joint and epimere core barrel the outside, lower end be fixedly installed togather by screw thread, be intervally distributed with the head of setting upright of at least one at the last middle part of setting upright joint, the outside, upper end of epimere core barrel is fixedly installed togather by epimere core barrel joint with the inboard, lower end of top connection; The outlet valve that can be connected with the epimere outer tube bore is installed in top connection; Form helical cavity between spiral outer tube and the helix tube, venthole is arranged at the top of helical cavity, on the spiral outer tube, be distributed with the fluid hole of at least one, upper bush, become the snapping hoop, drainage tube, the drainage tube box cupling with in set upright joint, the center drainage tube, form the following gas-liquid channel that is connected with axially extending bore and helical cavity respectively between the following core barrel joint, upper bush, become the snapping hoop, drainage tube, the drainage tube box cupling, form fluid course between spiral outer tube and the stage casing outer tube, fluid course is connected with helical cavity by fluid hole, and fluid course is by the intracavity inter-connection of radial direction through hole on the upper bush and upper bush.
5. efficient downhole gas liquid/gas separator according to claim 4, it is characterized in that between stage casing outer tube top connection and the epimere outer tube extension pipe being arranged, this extension pipe comprises that lengthening outer tube, lengthening set upright joint, lengthening core barrel, lengthening core barrel joint, lengthening core barrel seal nipple, the top connection of lengthening outer tube, lengthening outer tube lower contact and lengthening tubing nipple; The outside, upper end of stage casing outer tube top connection is fixedly installed togather by screw thread with the inboard, lower end of lengthening outer tube, the inboard outside, lower end with the lower contact of lengthening outer tube, the upper end of lengthening outer tube is fixedly installed togather by screw thread, the inboard outside, lower end with the lengthening tubing nipple, the upper end of lengthening outer tube lower contact is fixedly installed togather by screw thread, the outside, upper end of lengthening tubing nipple is fixedly installed togather by screw thread with the inboard, lower end of lengthening outer tube top connection, and the outside, upper end of lengthening outer tube top connection is fixedly installed togather by screw thread with the inboard, lower end of epimere outer tube; The top of stage casing core barrel seal nipple is sleeved on lengthening and sets upright on the bottom of joint and the maintenance sealing, lengthening is set upright the upper inner of joint and the outside, lower end of lengthening core barrel is fixedly installed togather by screw thread, the upper end of lengthening core barrel is fixedly installed togather by lengthening core barrel joint with the lower end of lengthening core barrel seal nipple, and the top of lengthening core barrel seal nipple is sleeved on the bottom of setting upright joint and keeps sealing.
6. efficient downhole gas liquid/gas separator according to claim 4, it is characterized in that on the inwall of top connection the axial installing hole that is connected with the epimere outer tube bore being arranged, outlet valve comprises valve seat, valve bonnet and valve ball, the bottom of valve seat is fixedly mounted in the top of axial installing hole, upper outside at valve seat is installed with valve bonnet, venthole is arranged on valve bonnet, valve ball is arranged in the upper seat of valve seat.
7. efficient downhole gas liquid/gas separator according to claim 5, it is characterized in that on the inwall of top connection the axial installing hole that is connected with the epimere outer tube bore being arranged, outlet valve comprises valve seat, valve bonnet and valve ball, the bottom of valve seat is fixedly mounted in the top of axial installing hole, upper outside at valve seat is installed with valve bonnet, steam vent is arranged on valve bonnet, the valve ball that can seal up valve base cavity is arranged in the upper seat of valve seat.
8. efficient downhole gas liquid/gas separator according to claim 4 is characterized in that setting upright on the bottom of joint seal groove is arranged, and sealing ring is installed in seal groove.
9. efficient downhole gas liquid/gas separator according to claim 5 has seal groove on the bottom of setting upright joint that it is characterized in that extending, and sealing ring is installed in seal groove, in set upright on the bottom of joint seal groove arranged, sealing ring is installed in seal groove.
10. efficient downhole gas liquid/gas separator according to claim 7 has seal groove on the bottom of setting upright joint that it is characterized in that extending, and sealing ring is installed in seal groove, in set upright on the bottom of joint seal groove arranged, sealing ring is installed in seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205350812U CN201763310U (en) | 2010-09-19 | 2010-09-19 | High efficiency down-hole gas-liquid separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205350812U CN201763310U (en) | 2010-09-19 | 2010-09-19 | High efficiency down-hole gas-liquid separation device |
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| Publication Number | Publication Date |
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| CN201763310U true CN201763310U (en) | 2011-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205350812U Expired - Lifetime CN201763310U (en) | 2010-09-19 | 2010-09-19 | High efficiency down-hole gas-liquid separation device |
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| Country | Link |
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| CN (1) | CN201763310U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787835A (en) * | 2012-07-23 | 2012-11-21 | 常州大学 | Gas well underground spiral gas-liquid separation liquid drainage and gas production device |
| CN110173254A (en) * | 2019-05-14 | 2019-08-27 | 中国海洋石油集团有限公司 | A kind of underground bitubular single-stage adjustable type gas-liquid separator |
| CN110284870A (en) * | 2019-07-11 | 2019-09-27 | 闫波 | A kind of underground gas-liquid suitable for gas well divides device for picking |
| CN113404468A (en) * | 2021-08-02 | 2021-09-17 | 西南石油大学 | Novel gas-liquid separate production pipe column for underground drainage and gas production of sulfur-containing gas well |
-
2010
- 2010-09-19 CN CN2010205350812U patent/CN201763310U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787835A (en) * | 2012-07-23 | 2012-11-21 | 常州大学 | Gas well underground spiral gas-liquid separation liquid drainage and gas production device |
| CN102787835B (en) * | 2012-07-23 | 2015-04-22 | 常州大学 | Gas well underground spiral gas-liquid separation liquid drainage and gas production device |
| CN110173254A (en) * | 2019-05-14 | 2019-08-27 | 中国海洋石油集团有限公司 | A kind of underground bitubular single-stage adjustable type gas-liquid separator |
| CN110173254B (en) * | 2019-05-14 | 2021-07-27 | 中国海洋石油集团有限公司 | Underground double-cylinder single-stage adjustable gas-liquid separator |
| CN110284870A (en) * | 2019-07-11 | 2019-09-27 | 闫波 | A kind of underground gas-liquid suitable for gas well divides device for picking |
| CN113404468A (en) * | 2021-08-02 | 2021-09-17 | 西南石油大学 | Novel gas-liquid separate production pipe column for underground drainage and gas production of sulfur-containing gas well |
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