CN1081284C - Fluid exploiting and conveying method and equipment utilizing gas - Google Patents
Fluid exploiting and conveying method and equipment utilizing gas Download PDFInfo
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- CN1081284C CN1081284C CN98107194A CN98107194A CN1081284C CN 1081284 C CN1081284 C CN 1081284C CN 98107194 A CN98107194 A CN 98107194A CN 98107194 A CN98107194 A CN 98107194A CN 1081284 C CN1081284 C CN 1081284C
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- 239000012530 fluid Substances 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title abstract description 54
- 239000007788 liquid Substances 0.000 claims description 226
- 238000012856 packing Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 2
- 239000007789 gas Substances 0.000 description 133
- 238000002347 injection Methods 0.000 description 47
- 239000007924 injection Substances 0.000 description 47
- 230000000694 effects Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 238000004146 energy storage Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 241000521257 Hydrops Species 0.000 description 3
- 206010030113 Oedema Diseases 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
The present invention provides a method and a device for exploiting and conveying a fluid by utilizing gas. An opening and an upper opening are arranged on a double-pipe pillar structure formed from a fluid exploiting pipe and a fluid collecting pipe to form a communicating cavity structure. The opening and a fluid inlet form a jet pump structure, air is injected into the fluid collecting pipe to form an energy storing air chamber after fluid feeding is finished, and then a discharge port on the fluid exploiting pipe is opened for release; after the upper opening is exposed by the dropping fluid level in the fluid collecting pipe, the air enters the fluid exploiting pipe from the upper opening to be mixed with a fluid pillar or lifted outside. When the speed of the fluid flowing through the opening is increased, suction force is generated at the fluid inlet, and then a well fluid is sucked and then is lifted outside.
Description
The present invention relates to gas-field exploitation fluid pump machines, be adapted to oil-gas mining in the petroleum industry oil extraction process etc. especially.
The method that liquid is adopted in the gaslift that the existing method of using the gas-field exploitation fluid mainly is a petroleum industry.Its activities is to reduce in the well gas injection by the method for injecting fast Compressed Gas in pit shaft to put the fluid column density on ground or fast one section fluid column is pushed into ground, to guarantee the pressure reduction in stratum and shaft bottom, makes oil gas continue outflow and enumerates.Liquid is adopted in gaslift continuous gas lift and two kinds of main modes of intermittent gaslift.In the gaslift of intermittent gaslift middle chamber is one of a kind of main gaslift method, and it is a gas lift valve of being opened liquid collecting cavity top in the well by gaslift air pressure, gas is acted on rapidly liquid is pushed in the liquid sucking tube on the intraluminal fluid face to enumerate fast.Or piecemeal liquid slug is enumerated by several gas lift valves on the way.It is low to be used for bottom pressure, the oil well that liquid production index is higher.But exist complex structure, the gas that the short time internal consumption is a large amount of needs corresponding ground installation to guarantee.Sand output well and foam emulsification well validity are poor, are difficult to shortcomings such as lifting viscous fluid.Especially the performance of Zhuan Zhi " heart " parts gas lift valve and effect that reliability is determining gaslift.And gas lift valve easily breaks down, and work such as pulling need special operation, and it is higher to keep producing cost.At " elevate a turnable ladder method oil production technology) " volume two of publishing in 1985 by petroleum industry publishing house of American K.E Blang chief editor＜down〉a kind of simple and reliable air pump has been described in the 550th page air pump one joint, its method is alternately gas to be annotated in the accumulation chamber of shaft bottom liquid is discharged.And then release gas, so that make liquid be full of accumulation chamber once more.As a rule, the oil field gas pressure is not high enough, therefore can only carry out lifting to shallow oil reservoir in this way, and life period postpones between inflation and the exhaust simultaneously, and this method is limited the use of in stripper well.At the problems referred to above, at my application number is in 97112687.9 the patent of invention " gas is adopted, the method for transporting fluid and device " this pump to be improved, enable to adopt easily, the fluid of defeated any degree of depth, it is little to have an air consumption, the characteristics of being convenient to safeguard.But it is long also to exist circular gap, and control is than shortcomings such as complexity.
One of purpose of the present invention be to I formerly invent " gas is adopted, the method for transporting fluid and device " (application number 97112687.9) further improvement, enrich and perfect, adopt to adapt under the various conditions, the requirement of transporting fluid.Two of purpose of the present invention provides a kind of simple in structure, and reliable operation is easy to operate, and energy consumption is low, discharge capacity is big, efficient is high, and the life-span is long, can adopt any degree of depth, any character, and be not subjected to environmental limitations, the stratum do not produced back pressure, the method and the device of gas-field exploitation fluid applied widely.Be gas collection pressure, gaslift and jet method and device in the gas-field exploitation fluid of one.
Invention is achieved in that
One of method and device: with reference to Fig. 1, by source of the gas, liquid sucking tube, collector tube, the tracheae line, controller, one way valve, in the method for the gas-field exploitation fluid that tail pipe and chimney filter etc. constitute and the device, liquid sucking tube with the dual string structure that collector tube constitutes in pit shaft is: the lower end of tracheae line 8 is being connected collector tube 11, connecting joint 15 in the bottom of liquid sucking tube 10, one way valve 19 is arranged in the joint 15, inlet 18 stretches into and has formed the port 17 of linking up liquid sucking tube 10 and collector tube 11 in the joint 15, constituted the jet pump structure thus, port 17 is a spout in this jet pump structure, leakage fluid dram 16 is an aditus laryngis, and inlet 18 is an inlet.Having upper port 14 on the liquid sucking tube 10 in entering collector tube 11 links up liquid sucking tube 10 and collector tube 11.Be that upper port and port are linked up formation together with cavity body structure.In the bottom of connected chamber body structure the feed liquor one way valve is housed, the bottom of joint 15 is connecting tail pipe 21 and chimney filter 22.Liquid sucking tube 10 is by being lowered in the tracheae line 8 in the collector tube 11, and the valve seat that chimney filter 22 and tail pipe 21 pass collector tube 11 bottoms stretches in the pit shaft 9, and the base part seat of joint 15 is enclosed on the seat of collector tube 11 bottoms.The upper end of tracheae line 8 is connected with controller 3, and the source of the gas compressed gas injects tracheae line 8 by controller 3 controls and enters in the collector tube 11, and forms air chamber 12 in collector tube 11.Compressed Gas is enumerated fluid in the tracheae line injects collector tube by ground control controller, can lift liquid continuously or intermittently lift liquid.When lifting liquid continuously, open the scavenge port on the liquid sucking tube, gas injection in collector tube continuously.Producing suction at the inlet place when Compressed Gas high velocity stream is crossed port makes well liquid enter and enumerate.The Compressed Gas that is entered by upper port has further increased the energy of lifting liquid in addition.When intermittently lifting liquid, Compressed Gas enters and drives liquid formation energy storage air chamber in the collector tube, also can inject certain back pressure (being usually less than 1Mpa) in liquid sucking tube in the middle of this.The scavenge port of opening after the air pressure that injects meets the requirements of pressure on the liquid sucking tube discharges, expansion of compressed gas in the air chamber, well liquid in the collector tube is entered in the liquid sucking tube, after the liquid level that is descending in the collector tube exposes upper port, Compressed Gas in the air chamber enters thus in the liquid sucking tube and mixes with fluid column, makes density decline and enumerates.Entering fluid in the liquid sucking tube by port in addition mixes with the Compressed Gas that enters thus again after going upward to the upper port place and density is descended enumerate.Along with the decline of fluid column density, accelerate through the fluid velocity of passage port, produce suction at the inlet place, after being sucked, enumerates in the lump well liquid.In said structure: shown in Figure 2 is the one way valve 23 that stops fluid to fall after rise being equipped with on the liquid sucking tube above the upper port 14 10 on the basis of structure shown in Figure 1.The difference of structure shown in Figure 3 and structure shown in Figure 2 is a no jet pump structure in structure.One way valve 19 stretches in the joint 24, is beneficial to when discharge opeing the cleaning to one way valve 19.Be mainly used in exploitation viscous fluid etc.The difference of method shown in Figure 4 and structure and method shown in Figure 3 and structure is that the discharge opeing one way valve that stops liquid to fall after rise is installed in the structure, its method of work and principle and shown in Figure 3 basic identical.The difference of structure shown in Figure 5 and structure shown in Figure 2 is not have upper port in the structure.Be mainly used in adopting liquid or lifting liquid continuously of shallow well.One way valve is installed in the liquid sucking tube 10 above the joint 15 in this structure.The difference of structure shown in Figure 6 and structure shown in Figure 5 is not have the one way valve that stops liquid to fall after rise in structure.Its method of work and principle are with shown in Figure 5 basic identical.Shown in Figure 7 is a kind of structure that is formed the liquid collecting cavity by packer 26 packing pit shafts 9.This structure is applicable to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and any one structure shown in Figure 6.During work Compressed Gas directly injected the air chamber 27 in the pit shaft 9.It is good that this structure is suitable for the pit shaft quality, the well that the production fluid amount is bigger.Shown in Figure 8 is a kind of structure that is formed the liquid collecting cavity by twin packer 26,29 packing pit shafts 9.This structure is applicable to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and any one structure shown in Figure 6.The toroidal cavity that packer 29 tops form can be used for air storage.
The main effect of controller be control in collector tube, inject Compressed Gas or in collector tube with liquid sucking tube in inject the Compressed Gas of certain pressure after (being generally below the 1MPa) stop gas injection in liquid sucking tube, gas injection is after reaching specified air pressure in collector tube in continuation, and the scavenge port of opening again on the liquid sucking tube discharges.Can in collector tube, inject other material by the access that is connected on the tracheae line in addition, be adopted the character of liquid with its extraction to change.
The main effect of upper port is to guide the interior Compressed Gas of air chamber to enter in the liquid sucking tube to mix with fluid column.Or fluid column enumerated.Upper port is to be opened and closed by the liquid level that descends in the collector tube or rise.Open usually when the air chamber internal gas pressure reaches specified air pressure the position of upper port, near the residing position of liquid level in the collector tube.The size of upper port determines that according to well depth and well fluidity matter usually less than 1/3 lower port, the direction the when direction of upper port is discharged with the liquid sucking tube inner fluid as far as possible is consistent, reducing the interference with up fluid, even can play the effect of jet suction.The shape of upper port is determined according to actual conditions, can is hole, groove, seam etc.Upwards spray better with the circumferential weld shape.Jet pump is that the inlet by port and collector tube constitutes, and the method that constitutes jet pump is inlet to be stretched into to form annular jet in the joint of liquid sucking tube bottom be that port is finished.Also can be designed to the ring-type inlet.
Two of method and device: with reference to Fig. 9, in gas-field exploitation fluid method that constitutes by source of the gas, liquid sucking tube, collector tube, tracheae line, controller, one way valve, tail pipe and chimney filter etc. and device, the dual string structure that the collector tube of liquid sucking tube and upper end closed constitutes in pit shaft is: the collector tube 49 that is connected with one section top seal in the bottom of liquid sucking tube 48, feed liquor one way valve 58 is equipped with in the bottom of collector tube 49, and the liquid feeding end of one way valve 58 is connected with tail pipe 59 and chimney filter 60.On liquid sucking tube 48, have the upper port 52 of linking up collector tube 49 and liquid sucking tube 48, leakage fluid dram 54 in liquid sucking tube 49 bottoms is in the bottom in collector tube 49 chambeies, the inlet 57 of collector tube 49 stretches in the joint 55, has formed the port 56 of linking up liquid sucking tube 48 and collector tube 49.By upper and lower two place's ports is that upper port and port communication form the connected chamber body structure, in the bottom of connected chamber body structure the feed liquor one way valve is housed.Upper end at liquid sucking tube 48 is connected with controller 42.On controller 42, also connecting the tracheae line 41, access 43 and the scavenge port 44 that are connected with source of the gas 40.Reserving air chamber 50 is that collector tube 49 is lowered in the pit shaft 47 with liquid sucking tube 48, the part collector tube that well liquid 53 fails to be full of.Just open near the position that air chamber 50 and liquid level join in collector tube 48 position of upper port 52.Compressed Gas is entered in the air chamber of reserving in the collector tube through liquid sucking tube, upper port by ground controller control and stores.After injecting air pressure and reaching required pressure.Stop gas injection and open scavenge port discharging, Compressed Gas in the air chamber expands rapidly, well liquid in the collector tube is entered in the liquid sucking tube, after the liquid level that is descending in the collector tube exposes upper port, portion gas in the air chamber enters thus in the liquid sucking tube to mix with fluid column and density is descended or enumerates, along with the sinking of fluid column density in the liquid sucking tube fluid velocity through passage port increases, produce at the inlet place and to enumerate after suction sucks well liquid.In said structure, the main effect of controller is to open scavenge port then by the air chamber gas injection energy storage of liquid sucking tube in collector tube to discharge.The main effect of upper port is the density that makes Compressed Gas enter air chamber and reduce fluid column when discharge opeing.The size of the determining positions gas chamber volume of upper port, the size of upper port is determined by the degree of depth of being adopted liquid and character.Direction when the direction of upper port is discharged with the liquid sucking tube inner fluid as far as possible is consistent, reducing the interference with up fluid, even can play jet action.The shape of upper port determines according to actual conditions, and jet pump is that the inlet by port and collector tube constitutes, and the method for formation is inlet to be stretched into formation ring-type spout is that port is finished in the joint of liquid sucking tube bottom.Also can be designed to the ring-type inlet.When well liquid is viscous fluid,, the jet pump structure can be set according to actual conditions.Also can open place's inlet in addition, to increase the feed liquor ability.This method and device also are applicable to gas well row hydrops simultaneously.Method shown in Figure 10 and structure and method shown in Figure 9 and the difference of structure are that the jet pump structure is not set in this structure.To increase the feed liquor ability.In this structure, one way valve 58 is in the joint 61, when making fluid in the collector tube 49 in entering liquid sucking tube 48 one way valve 58 is had the cleaning effect.Method shown in Figure 11 and structure are only to have place's port 56 to be used for less well of each production fluid amount or gas well row hydrops in this method and the structure with the difference of method shown in Figure 9 and structure.Figure 12 showed and a kind ofly forms collector tubes and reserve the structure of air chamber 50 with packer 65 and packer 63 packing pit shafts 47, and method of work and principle and structure shown in Figure 9 are basic identical.
Characteristics of the present invention are:
A, simple in structure, reliable operation, life-span expense long, that keep production are low.
Replaced the complicated gas lift valve that is prone to fault by simple and reliable port among the present invention, simple, reliable, long-life that underground structure is become, and make ground installation and the operation more simple and flexible, same device can intermittently be lifted liquid can lift liquid again continuously.Intermittently lifting liquid is that energy storage is lifted liquid, thereby greatly reduces the requirement to compressed gas source and compressor, is that jetting type is lifted liquid thereby not only the stratum do not had back pressure when lifting liquid continuously, and also has swabbing action.
A, discharge capacity is big, efficient is high, energy consumption is low.
The lifting rate of intermittently lifting liquid according to the liquid supply rate of producing well, this device is big, lifting rate when continuously lifting liquid is bigger, the tolerance when intermittently lifting liquid only for about half of the liquid method of lifting intermittence used at present and also lifting rate and gas injection rate can remain at optimum value.
C, applied widely.
The present invention is not subjected to be limited by the character of sampled-current body, can adopt viscous fluid, emulsion, and high moisture, contain sand, contain gas-liquid, be not subjected to the restriction of pit shaft quality, as can be used for the pit shaft bending, in the well of casing damage.Be not subjected to by the environmental limitations of sampled-current body, promptly can be used for land and adopt liquid and can be used for the sea again and adopt liquid, can be used for the gas well discharge opeing in addition yet.
Below with reference to accompanying drawing invention is described in further detail:
Title among the figure:
1, source of the gas 2, tracheae line 3, controller 4, access 5, scavenge port 6, access 7, ground 8, tracheae line 9, pit shaft 10, liquid sucking tube 11, collector tube 12, air chamber 13, joint 14, upper port 15, joint 16, leakage fluid dram 17, port 18, inlet 19, one way valve 20, well liquid 21, tail pipe 22, chimney filter 23, one way valve 24, joint 25, port 26, packer 27, air chamber 28, air chamber 29, packer 30, joint 31, telescoping tube 32, gas dome 40, source of the gas 41, tracheae line 42, controller 43, access 44, scavenge port 45, access 46, ground 47, pit shaft 48, liquid sucking tube 49, collector tube 50, air chamber 51, joint 52, upper port 53, well liquid 54, leakage fluid dram 55, joint 56, port 57, inlet 58, one way valve 59, tail pipe 60, chimney filter 61, joint 62, port 63, packer 64, joint 65, packer 66, air chamber 70, source of the gas 71, tracheae line 72, controller 73, access 74, scavenge port 75, access 76, ground 77, pit shaft 78, liquid sucking tube 79, collector tube 80, air chamber 81, joint 82, upper port 83, leakage fluid dram 84, one way valve 85, tail pipe 86, chimney filter 87, well liquid 88, access 89, liquid sucking tube 90, perforation 91, packer 92, collector tube 93, air chamber 94, leakage fluid dram 95, joint 96, one way valve 97, port 98, tail pipe 99, well liquid 100, chimney filter.
With reference to Fig. 1
The lower end of tracheae line 8 is connecting collector tube 11 among Fig. 1, connecting joint 15 in the bottom of liquid sucking tube 10, one way valve 19 is arranged in the joint 15, inlet 18 stretches into and has formed the port 17 of linking up liquid sucking tube 10 and collector tube 11 in the joint 15, constituted the jet pump structure thus, port 17 is a spout in this jet pump structure, and leakage fluid dram 16 is an aditus laryngis, and inlet 18 is an inlet.Having upper port 14 on the liquid sucking tube 10 in entering collector tube 11 links up liquid sucking tube 10 and collector tube 11.The bottom of joint 15 is connecting tail pipe 21 and chimney filter 22.Liquid sucking tube 10 is by being lowered in the tracheae line 8 in the collector tube 11, and the valve seat that chimney filter 22 and tail pipe 21 pass collector tube 11 bottoms stretches in the pit shaft 9, and the base part seat of joint 15 is enclosed on the seat of collector tube 11 bottoms.The upper end of tracheae line 8 is connected with controller 3, and the source of the gas compressed gas injects tracheae line 8 by controller 3 controls and enters in the collector tube 11, and forms air chamber 12 in collector tube 11, and controller 3 also can be controlled in the Compressed Gas injection liquid sucking tube 10 in addition.The other end of controller 3 is connected with tracheae line 2.Access 4 is the filler of pressure release or other material.The upper end of liquid sucking tube 10 also is connected on the controller 3, controller control to liquid sucking tube 10 in gas injection and with the fluid in the liquid sucking tube 10 through scavenge port 5 discharges.
Method of work and principle: when being used for intermittently lifting liquid, opening access 4 well liquid 20 is fully entered in the collector tube 11.After feed liquor finishes, close access 4 and scavenge port 5, open gas injection port gas injection in collector tube 11 and liquid sucking tube 10, behind the gas that injects certain pressure, stop gas injection in liquid sucking tube 10, continue gas injection in collector tube 11.Along with the injection of Compressed Gas, the well liquid 20 in the collector tube 11 is driven into gradually through upper port 14 and port 17 and has formed energy storage air chamber 12 in the liquid sucking tube 10, after gas injection pressure reaches rated pressure, opens scavenge port 5 and discharges.Compressed Gas in the air chamber 12 expand rapidly, and the liquid level that promotes in the collector tube 11 is descending, and after liquid level descending collector tube 11 in exposed upper port 14, portion gas entered thus that liquid sucking tube 10 is interior to be mixed with fluid column or enumerate.When meanwhile, the well liquid 20 in port 17 enters liquid sucking tube 10 goes upward to upper port 14 places again with enter liquid sucking tube 10 thus in gas mix density reduced.Along with the reduction of well liquid 20 density in the liquid sucking tube 10,, after sucking well liquid 20, together enumerates generation suction in inlet 18 places through the fluid velocity increase at port 17 places.In time close gas injection port during this period, rely on the gas energy of storing in the air chamber 12 to work on.After act liquid finished, collector tube 11 feed liquor once more began next circulation.When being used for lifting liquid continuously, open gas injection in collector tube 11 continuously behind the scavenge port 5.Produce suction at inlet 18 places when the Compressed Gas high velocity stream is crossed port 17, well liquid 20 is sucked and enumerates.Simultaneously, the Compressed Gas that is entered by upper port 14 has further increased the energy of lifting liquid.
With reference to Fig. 2
Shown in Figure 2 is the one way valve 23 that stops fluid to fall after rise being equipped with on the liquid sucking tube above the upper port 14 10 on the basis of structure shown in Figure 1.Its method of work and principle and Fig. 1 are basic identical.
With reference to Fig. 3
The difference of structure shown in Figure 3 and structure shown in Figure 2 is a no jet pump structure in structure.One way valve 19 stretches in the joint 24, is beneficial to when discharge opeing the cleaning to one way valve 19.Be mainly used in exploitation viscous fluid etc.
Method of work and principle: open access 4 well liquid 20 is fully entered in the collector tube 11.After feed liquor finishes, close access 4 and scavenge port 5.Open gas injection port gas injection in collector tube 11 and liquid sucking tube 10, behind the gas that injects certain pressure, stop gas injection in liquid sucking tube 10, continue gas injection in collector tube 11.Injection along with Compressed Gas, well liquid 20 is driven into gradually through upper port 14 and port 25 and has formed energy storage air chamber 12 in the liquid sucking tube 10 in the collector tube 10, after gas injection pressure reaches rated pressure, opening scavenge port 5 discharges, Compressed Gas in the air chamber 12 expands rapidly, the liquid level that promotes in the collector tube 11 is descending, and after descending liquid level exposed upper port 14, portion gas entered thus and mixes with fluid column in the liquid sucking tube 10 or enumerate.Meanwhile, when the well liquid 20 in port 25 enters liquid sucking tube 10 walks to upper port 14 places again with enter liquid sucking tube 10 thus in gas mix, density is reduced is enumerated.In time close gas injection port during this period, rely on the energy of storing in the air chamber 12 to work on.After lifting liquid and finishing, in the collector tube 11 once more feed liquor begin next circulation.When the shaft bottom had certain stream to press, this structure can be used for lifting continuously liquid.When lifting liquid continuously, open scavenge port 5, open gas injection port gas injection in collector tube 11 continuously, Compressed Gas mixes the back and is enumerated with the well liquid 20 that enters.
With reference to Fig. 4
The difference of method shown in Figure 4 and structure and method shown in Figure 3 and structure is that the discharge opeing one way valve that stops liquid to fall after rise is installed in the structure, its method of work and principle and shown in Figure 3 basic identical.
With reference to Fig. 5
The difference of structure shown in Figure 5 and structure shown in Figure 2 is not have upper port in the structure.Be mainly used in adopting liquid or lifting liquid continuously of shallow well.One way valve is installed in the liquid sucking tube 10 above the joint 15 in this structure.
Method of work and principle: when being used for intermittently lifting liquid, opening access 4 well liquid 20 is fully entered in the collector tube 11.After feed liquor finishes, close access 4 and scavenge port 5, open gas injection port gas injection in collector tube 11 and liquid sucking tube 10, behind the gas that injects certain pressure, stop gas injection in liquid sucking tube 10.Continuation gas injection in collector tube 11.Along with the injection of Compressed Gas, the well liquid 20 in the collector tube 11 is in port 17 is driven into liquid sucking tube 10 gradually.Formed energy storage air chamber 12, after gas injection pressure reaches rated pressure, opened scavenge port 5 and discharge.Compressed Gas in the air chamber 12 expands rapidly, and the well liquid 20 that promotes in the collector tube 11 enters rapidly in the liquid sucking tube 10, in time closes gas injection port during this period and relies on the gas energy of storing in the air chamber 12 to work on.After act liquid finished, collector tube 11 feed liquor once more began next circulation.When being used for lifting liquid continuously, closing access 4 and open scavenge port 5, open gas injection port gas injection in collector tube 11 continuously.Produce suction at inlet 18 places when the Compressed Gas high velocity stream is crossed port 17, well liquid 20 is sucked and enumerates.
With reference to Fig. 6
The difference of structure shown in Figure 6 and structure shown in Figure 5 is not have the one way valve that stops liquid to fall after rise in structure.Its method of work and principle are with shown in Figure 5 basic identical.
With reference to Fig. 7
Shown in Figure 7 is a kind of structure that is formed the liquid collecting cavity by packer 26 packing pit shafts 9.This structure is applicable to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and any one structure shown in Figure 6.During work Compressed Gas directly injected the air chamber 27 in the pit shaft 9.It is good that this structure is suitable for the pit shaft quality, the well that the production fluid amount is bigger.
With reference to Fig. 8
Shown in Figure 8 is a kind of structure that is formed the liquid collecting cavity by twin packer 26,29 packing pit shafts 9.This structure is applicable to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and any one structure shown in Figure 6.The toroidal cavity that packer 29 tops form can be used for air storage.
With reference to Fig. 9
Method shown in Figure 9 and structure and method and structure difference shown in Figure 1 are: Compressed Gas is to be entered in the air chambers of reserving in the collector tube 49 50 by liquid sucking tube 48.Concrete structure is, is connected with the collector tube 49 of one section top seal in the bottom of liquid sucking tube 48, and feed liquor one way valve 58 is equipped with in the bottom of collector tube 49, and the liquid feeding end of one way valve 58 is connected with tail pipe 59 and chimney filter 60.On liquid sucking tube 48, have the upper port 52 of linking up collector tube 49 and liquid sucking tube 48, leakage fluid dram 54 in liquid sucking tube 49 bottoms is in the bottom in collector tube 49 chambeies, inlet 57 god of collector tube 49 go in the joint 55, have formed the port 56 of linking up liquid sucking tube 48 and collector tube 49.Upper end at liquid sucking tube 48 is connected with controller 42.On controller 42, also connecting the tracheae line 41, access 43 and the scavenge port 44 that are connected with source of the gas 40.Reserving air chamber 50 is that collector tube 49 is lowered in the pit shaft 47 with liquid sucking tube 48, the part collector tube that well liquid 53 fails to be full of.Just open near the position that air chamber 50 and liquid level join in collector tube 48 position of upper port 52.The particular location of upper port 52 is determined according to actual conditions.Promptly want to make after gases expand in the air chamber 50, enter liquid sucking tube 48 interior one section fluid column, do not make again that the fluid column that is advanced is too high can not be enumerated.When specified air pressure, the length of institute's feed liquor body is decided on well depth.The direction in the time should discharging with liquid sucking tube 48 fluids of upper port 52 as far as possible one is shown to reduce and is disturbed.The neglecting actual conditions greatly of upper port 52 and deciding.Common latus rectum greater than 1/3 port 56.
Method of work and principle: open scavenge port 44 well liquid 53 is fully entered in the collector tube 49, feed liquor is closed scavenge port 44 and is opened the gas injection port gas injection after finishing.Compressed Gas enters in the air chamber 50 through liquid sucking tube 48 upper ports 52 and stores, and after injecting gas pressure reaches rated pressure, stops gas injection, opens scavenge port 44 and discharges.Compressed Gas in the air chamber 50 expands rapidly, promoting collector tube 49 interior liquid enters in the liquid sucking tube 48 through upper port 52 and port 56, after the liquid level that is descending in the collector tube 49 exposed upper port 52, the Compressed Gas in the air chamber 50 entered thus and mix with fluid column in the liquid sucking tube 48 or enumerate.When the liquid in port 56 enters liquid sucking tube 48 goes upward to upper port 52 places, mix with the Compressed Gas that enters thus again and enumerate.Reduction along with fluid column density in the liquid sucking tube 48.The fluid velocity at port 56 places of flowing through increases, and produces suction at inlet 57 places, together enumerate after will well liquid 53 sucking.Exhaust until air chamber 50 self-energys, collector tube 49 feed liquor again begins next circulation.
With reference to Figure 10
Method shown in Figure 10 and structure and method shown in Figure 9 and the difference of structure are that the jet pump structure is not set in this structure.To increase the feed liquor ability.In this structure, one way valve 58 is in the joint 61, when making fluid in the collector tube 49 in entering liquid sucking tube 48 one way valve 58 is had the cleaning effect.
Method of work and principle: open scavenge port 44, well liquid 53 is fully entered in the collector tube 49, feed liquor is closed scavenge port 44 and is opened the gas injection port gas injection after finishing.Compressed Gas enters in the air chamber 50 through liquid sucking tube 48 upper ports 52 and stores, and after injecting gas pressure reaches rated pressure, stops gas injection.Opening scavenge port 44 discharges.Compressed Gas in the air chamber 50 expands rapidly, promoting collector tube 49 interior liquid enters in the liquid sucking tube 48 through upper port 52 and port 62, after the liquid level that is descending in the collector tube 49 exposed upper port 52, the Compressed Gas in the air chamber 50 entered thus and mix with fluid column in the liquid sucking tube 48 or enumerate.Mix with the Compressed Gas that enters thus again when the liquid in port 62 enters liquid sucking tube 48 goes upward to upper port 52 places and enumerate.Exhaust until air chamber 50 self-energys.Collector tube 49 feed liquor again begins next circulation.
With reference to Figure 11
Method shown in Figure 11 and structure are only to have place's port 56 to be used for less well of each production fluid amount or gas well row hydrops in this method and the structure with the difference of method shown in Figure 9 and structure.
Method of work and principle: open scavenge port 44, well liquid 53 is fully entered in the collector tube 49.Feed liquor is closed scavenge port 44 and is opened the gas injection port gas injection after finishing.Compressed Gas is stored in liquid sucking tube 48, port 56 enter air chamber 50 in the collector tube 49, after injecting gas pressure reaches rated pressure, stops gas injection, opens scavenge port 44 and discharges.Compressed Gas in the air chamber 50 expands rapidly, and the liquid in the promotion collector tube 49 is in port 56 enters liquid sucking tube 48.When the fluid velocity at port 56 places that flow through increases the back at inlet 57 places generation suction.To together enumerate after 53 suctions of well liquid.Exhaust until air chamber 50 self-energys, collector tube 49 feed liquor again begins next circulation.
With reference to Figure 12
Figure 12 showed and a kind ofly forms collector tubes and reserve the structure of air chamber 50 with packer 65 and packer 63 packing pit shafts 47, and method of work and principle and structure shown in Figure 9 are basic identical.
With reference to Figure 13
Figure 13 has showed a kind of method and structure that is used for exploiting simultaneously the fluid of different layers position.In structure, it is simpler by the structure of liquid sucking tube air inlet that next stage adopts, in this method and structure, lower stage with top grade between by packer 91 packings, on the collector tube 79 of level, its access 88 was arranged in collector tube 79 air chambers 80 internal upper part positions above the liquid sucking tube 89 of lower stage was connected.
Method of work and principle: open scavenge port 74 well liquid 87, well liquid 99 are fully entered in collector tube 79 and the collector tube 92.After feed liquor finishes, close scavenge port 74, and open the gas injection port gas injection, Compressed Gas is in liquid sucking tube 78, port 82 enter the air chamber 80 on collector tube 79 tops, and through liquid sucking tube 89 storage in port 97 enters air chamber 93 in the next stage collector tube 92.After reaching specified air pressure, air pressure closes gas injection port when injecting, opening scavenge port 74 discharges, Compressed Gas in the air chamber 80 expands rapidly, liquid in the collector tube 79 is entered in the liquid sucking tube 78 through upper port 82 and leakage fluid dram 83, after the liquid level that descends in the collector tube 79 exposed upper port 82, the gases in the air chamber 80 entered and mix with fluid column in the liquid sucking tube 78 or enumerate.When the pressure in the upper level collector tube 79 down will after, expansion of compressed gas in the next stage air chamber 93 are sent into liquid in the collector tube 92 in the collector tube 79 of upper level and through upper port 82 and leakage fluid dram 83 and are discharged.Exhaust until air chamber 80 and air chamber 93 self-energys, the collector tube 79 and 92 of upper and lower level is feed liquor once more, the next circulation of beginning.
Be used for multilayer and adopt the structure of liquid and be not limited only to as shown in figure 13 combination, according to actual conditions, just the structure of being showed among the present invention makes up arbitrarily.
Claims (9)
1. device that utilizes the gas-field exploitation fluid, comprise liquid sucking tube (10), collector tube (11), tracheae line (8), controller (3), one way valve (19), tail pipe (21) and chimney filter (22), liquid sucking tube (10) with the dual string structure that collector tube (11) constitutes in pit shaft (9) is: the lower end of tracheae line (8) is being connected collector tube (11), connecting joint (15) in the bottom of liquid sucking tube (10), liquid sucking tube (10) is by being lowered in the tracheae line (8) in the collector tube (11), port (17) on the joint (15) is linked up the chamber of liquid sucking tube (10) and collector tube (11), formation is together with cavity body structure, it is characterized in that: the liquid sucking tube (10) in entering collector tube (11) is gone up except that the port that has the bottom (17), also have upper port (14), link up the chamber of liquid sucking tube (10) and collector tube (11).
2. press the device of the gas-field exploitation fluid of claim 1 regulation, it is characterized in that: upper port (14) is an aperture.
3. press the device of the gas-field exploitation fluid of claim 1 regulation, it is characterized in that: inlet (18) stretches into and has formed the port (17) of communication liquid sucking tube (10) with collector tube (11) chamber in the joint (15), has constituted the jet pump structure.
4. the device by the gas-field exploitation fluid of claim 1 regulation is characterized in that: joint (15) is connecting the valve seat that chimney filter (22) and tail pipe (21) pass collector tube (11) bottom and is stretching in the pit shaft 9, the base part seat of joint (15) is enclosed on the valve seat of collector tube (11) bottom, forms the cavity body structure of sealing.
5. press the device of the gas-field exploitation fluid of claim 4 regulation, it is characterized in that: feed liquor one way valve (19) is equipped with in the bottom of the cavity body structure of sealing.
6. press the device of the gas-field exploitation fluid of claim 1 regulation, it is characterized in that: collector tube is formed by packer (26) packing pit shaft (9).
7. press the device of the gas-field exploitation fluid of claim 1 regulation, it is characterized in that: collector tube is to form the liquid collecting cavity body structure by upper packer (29) and lower packet (26) packing pit shaft (9).
8. device that utilizes the gas-field exploitation fluid, comprise liquid sucking tube (48), collector tube (49), controller (42), one way valve (58), tail pipe (59) and chimney filter (60), liquid sucking tube (48) with the structure that collector tube (49) constitutes in pit shaft (47) is: the bottom of liquid sucking tube (48) is being connected collector tube (49), in the inlet (57) of the bottom of collector tube (49) feed liquor one way valve (58) is housed, the leakage fluid dram (54) of liquid sucking tube (48) bottom is in the bottom in collector tube (49) chamber, the port of bottom (56) is linked up the chamber of liquid sucking tube (48) and collector tube (49), it is characterized in that: the bottom of liquid sucking tube (48) is enclosed in the collector tube (49), the liquid sucking tube (48) that is enclosed in the collector tube (49) is gone up except that the port that has the bottom (56), also have upper port (52), link up liquid sucking tube (48) and collector tube (49).
9. press the device of the gas-field exploitation fluid of claim 8 regulation, it is characterized in that: the inlet (57) of collector tube (49) stretches in the joint (55) of liquid sucking tube (48) bottom, formed the port (56) of communication liquid sucking tube (48), constituted the jet pump structure with collector tube (49).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98107194A CN1081284C (en) | 1998-04-16 | 1998-04-16 | Fluid exploiting and conveying method and equipment utilizing gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98107194A CN1081284C (en) | 1998-04-16 | 1998-04-16 | Fluid exploiting and conveying method and equipment utilizing gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1247928A CN1247928A (en) | 2000-03-22 |
| CN1081284C true CN1081284C (en) | 2002-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98107194A Expired - Fee Related CN1081284C (en) | 1998-04-16 | 1998-04-16 | Fluid exploiting and conveying method and equipment utilizing gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1081284C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100523430C (en) * | 2003-11-06 | 2009-08-05 | 唐坤喜 | Gas driven oil production |
| RU2465442C1 (en) * | 2011-04-13 | 2012-10-27 | Виталий Семенович Гриб | Method of lifting water from wells |
| CN102305055B (en) * | 2011-08-10 | 2014-02-19 | 中国石油天然气股份有限公司 | Air foam flooding well bottom foaming process pipe column |
| CN103806882B (en) * | 2012-11-02 | 2016-09-28 | 景丽百合 | Liquid method and device is adopted in a kind of gaslift |
| CN104343421B (en) * | 2013-07-24 | 2018-01-12 | 深圳市弗赛特科技股份有限公司 | Gaslift simulation experiment system |
| CN104500007B (en) * | 2014-12-31 | 2018-03-13 | 山东威马泵业股份有限公司 | Gas can force the method and apparatus for lifting water or oil |
| CN106592692A (en) * | 2016-10-31 | 2017-04-26 | 北京建工环境修复股份有限公司 | Underground fluid gas extraction device and process |
| CN112253053B (en) * | 2020-11-02 | 2022-06-10 | 东北石油大学 | Foaming device and oil recovery lifting devices |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4265312A (en) * | 1980-01-25 | 1981-05-05 | Thein Well Company, Incorporated | Method for developing water wells |
| US4410041A (en) * | 1980-03-05 | 1983-10-18 | Shell Oil Company | Process for gas-lifting liquid from a well by injecting liquid into the well |
| CN2043268U (en) * | 1988-10-03 | 1989-08-23 | 赵士贤 | Concentric air lift reverse cyclic system of drilling machine |
| CN2074813U (en) * | 1990-08-29 | 1991-04-10 | 大庆石油学校 | Jet gas lift device |
| CN2075696U (en) * | 1990-08-19 | 1991-04-24 | 刘培文 | Pneumatic pump |
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1998
- 1998-04-16 CN CN98107194A patent/CN1081284C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4265312A (en) * | 1980-01-25 | 1981-05-05 | Thein Well Company, Incorporated | Method for developing water wells |
| US4410041A (en) * | 1980-03-05 | 1983-10-18 | Shell Oil Company | Process for gas-lifting liquid from a well by injecting liquid into the well |
| CN2043268U (en) * | 1988-10-03 | 1989-08-23 | 赵士贤 | Concentric air lift reverse cyclic system of drilling machine |
| CN2075696U (en) * | 1990-08-19 | 1991-04-24 | 刘培文 | Pneumatic pump |
| CN2074813U (en) * | 1990-08-29 | 1991-04-10 | 大庆石油学校 | Jet gas lift device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1247928A (en) | 2000-03-22 |
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