CN1102458A - Reciprocating-hydraulic combined pumping device - Google Patents
Reciprocating-hydraulic combined pumping device Download PDFInfo
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- CN1102458A CN1102458A CN 93119732 CN93119732A CN1102458A CN 1102458 A CN1102458 A CN 1102458A CN 93119732 CN93119732 CN 93119732 CN 93119732 A CN93119732 A CN 93119732A CN 1102458 A CN1102458 A CN 1102458A
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Abstract
The new-type reciprocation-hydraulic combined pumping apparatus is composed of underground reducing differentiating pump, annular sleeve pipe, liquid discharge pipe at well mouth and ground power machine set. It features that the pressure difference of liquid column between annular space and underground pump is used to lift liquid and the hydraulic power provided by ground reciprocating pump is used for continuous pumping.
Description
The present invention relates to a kind of novel reciprocating-hydraulic combined pumping device, it is the improvement that belongs to the down-hole liquid extraction device in the mechanical industry, it is to utilize the annular space of drain pipe and sleeve pipe and the formed fluid column differential pressure of reducing differential pump of down-hole, and utilizes the hydraulic power that reciprocating pump provided on ground to realize the purpose of continuous extracting down-hole liquid.Its main composition is four big constituent elements such as down-hole reducing differential pump, casing annulus chamber, well head drain apparatus and ground power unit.
At present, widely used drawing liquid (oil) device and equipment are the sucker rod pumping devices in petroleum development engineering, i.e. " three take out " device.This device is made up of pumping unit, oil well pump, sucker rod, and it is simple in structure, for ease of maintenaince and make.This oil rig be applied to oil field development the earliest and had ripe design, manufacturing, maintenance and a work theory system.But this machinery is by the sucker rod transferring power, and not only power consumption is big, efficient is low, and rod string is easily damaged parts, and accident takes place many, has increased maintenance expenses and the loss that stops production.Again because a large amount of high-quality steel of rod string consumption make the cost of complete equipment and expense improve.Therefore, people have developed non-rod oil pumping device again, and as hydraulic piston pump, electric submersible pump etc., non-rod oil pumping device is placed on power the shaft bottom and saves rod string, has avoided the sucker rod accident.But electric submersible pump and hydraulic piston pump structure are all very complicated, are difficult to make and maintenance, and the cost height, be difficult to the management, some fault is difficult to again overcome, as the cable fault of electric submersible pump, the shock problem of hydraulic piston pump etc., these effects limit further developing of non-rod oil pumping device.
Purpose of the present invention just is to avoid above-mentioned the deficiencies in the prior art part, and the reciprocating-hydraulic combined pumping device that provides the advantage that both has both sucker rod pumping device and non-rod oil pumping device to overcome the two shortcoming, it is to utilize down-hole reducing differential pump and casing annulus chamber to constitute annular space differential pressure chamber, and the dynamicliquid pressure that is provided by the reciprocating pump (17) in the power unit of ground is power, constitutes the combined pumping device of continuous drawing liquid with the well head drain apparatus.It is to be made of four major parts such as reducing differential pump, casing annulus chamber, well head drain apparatus and ground power units that its major technique is formed.
Accompanying drawing 1 is structure of the present invention, principle schematic.
In order to realize above-mentioned purpose of the present invention fully, artificer of the present invention then is designed to be down-hole reducing differential pump by last pump barrel (23), pump barrel (24), standing valve (2), plunger (1), hollow connecting rod (6), traveling valve (4) and liquid entering hole (5) constitute down, its standing valve (2) is arranged at down the lower end of pump barrel (24), and traveling valve (4) is arranged on the plunger (1) of hollow connecting rod (6) lower end; Upper piston (8) in the upper end of hollow connecting rod (6) and the last pump barrel (23) links, and is provided with liquid entering hole (5) in the connection end of last pump barrel (23) and following pump barrel (24).
Design to annular space differential pressure chamber, artificer then its annular space part that is designed to be by outer sleeve (9) is constituted with the packet (3) of reducing differential pump with its inner drain pipe (10) and following pump barrel lower end thereof, one end of its inner drain pipe (10) is connected in the upper end of pump barrel on the reducing differential pump (23), and the other end then links by the drain apparatus of well head and the reciprocating pump (17) of ground power unit; The lower end of outer sleeve (9) is provided with packet (3) at the following pump barrel place of reducing differential pump, and its upper end then links with the reciprocating pump (17) of ground power unit.
Design to the well head drain apparatus, the artificer then is designed to be it by four-way valve (11), safety valve (12) and hydraulic pressure unloading valve (13) and is constituted, and four interfaces of its four-way valve (11) link with the import of hydraulic pressure unloading valve (13), safety valve (12), inner drain pipe (10) and reciprocating pump (17) respectively.
The design of ground power unit, the artificer then is designed to be it by reciprocating pump (17), fan-shaped escapement (16), static pulley group (15) (18), motor reduction gearbox (22) and connecting rod (21) constitute, the two ends of its reciprocating pump (17) link with cable wire (14) respectively, link by static pulley group (15) (18) and fan-shaped escapement (16), its balance cable wire (14) is connected an end of fan-shaped escapement (16), the other end is then walked around balance static pulley (19) and is linked with equilibrium block (20), and its fan-shaped escapement (16) then links by connecting rod (21) and motor reduction gearbox (22).
The drawing of accompanying drawing is described as follows:
1---plunger 2---standing valve 3---packet 4---traveling valve
5---liquid entering hole 6---hollow connecting rod 7---differential chamber 8---upper piston
9---sleeve pipe 10---drain pipe 11---four-way valve 12---safety valve
The fan-shaped escapement of 13---hydraulic pressure unloading valve 14---cable wire 15---static pulley 1 16---
The parallel pulley 20---of 17---reciprocating pump 18---static pulley 2 19---equilibrium block
21---crank-connecting rod 22---motor reduction gearbox 23---goes up pump barrel under the pump barrel 24---
Come enumeration structure of the present invention and characteristics of principle below in conjunction with drawings and Examples:
In actual design, the inventor is the bottom that the reducing differential pump is arranged on underground bushing, and packet is set at the following pump barrel place of its reducing differential pump, again drain pipe is drawn by the last pump barrel top of reducing differential pressure, and link with the import of the four-way valve of well head drain apparatus; The top of its sleeve pipe then links with the import of reciprocating pump; In addition three interfaces of well head drain apparatus then link with another import of safety valve, hydraulic pressure unloading valve and reciprocating pump respectively; The driving of its reciprocating pump then is to realize by the connecting rod of static pulley group, fan-shaped escapement and motor reduction gearbox.Like this, when reciprocating pump motion and during extracting liquid, the annular space of sleeve pipe and drain pipe by liquid entering hole just with the inner chamber formation differential pressure of reducing differential pump, thereby make plunger motion in the chamber; When plunger and upper piston move up and down by hollow connecting rod, the also opening and closing thereupon of standing valve at traveling valve on its plunger and following pump barrel place; Simultaneously, the hydraulic pressure unloading valve of well head drain apparatus is then controlled its opening and closing by the part hydraulic pressure from reciprocating pump, thereby realizes the purpose of extracting down-hole liquid.
The present invention has made full use of the fluid column potential energy of the annular space between drain pipe inside and sleeve pipe and the drain pipe (differential pressure), replaces rod string lifting liquid with fluid column.The down-hole reducing differential pump that is adopted of this invention, it is simple in structure, reliable operation, standardization level height, and is easy to change and maintenance; The structure that its ground power unit is adopted is also comparatively simple, and as calculated: only for swimming about half of fine strain of millet formula pumping unit-oil well pump, complete machine weight also reduces greatly for same underground working, the power of motor of this oil rig and speed reducer moment of torsion.As 8 types trips fine strain of millet formula oil pumping machine oil pumping pump-unit only pumping unit just weigh 17 tons, overall sizes is 8.35M * 2.2M * 6.9M, and the weight of the power unit of corresponding this oil rig has only about 5 tons with it, overall sizes has only 7.0M * 1.82M * 1.5M, and has saved rod string.Compared with prior art, the present invention has the following advantages: 1. the present invention not only combines most of advantage of sucker rod pumping device and non-rod oil pumping device, has also overcome the most of shortcoming of the two; 2. utilize the liquid potential energy, save sucker rod, both reduced power consumption, improved unit efficiency again, also saved steel simultaneously, reduced cost; 3. complete machine structure is simple, is easy to make, keeps in repair and management; 4. the reducing differential pump of the power unit on ground and down-hole can adopt most of component of existing sucker-rod pumping equipment, standardization level height; 5. the complete machine unit volume is little, and is in light weight; 6. efficient height, the good reliability of unit, same operating mode is compared with the beam pumping unit oil-well pump device, and power of motor and speed reducer moment of torsion are reduced about one times, and its economic benefit prospect is considerable.
Claims (5)
1, reciprocating-hydraulic combined pumping device, it is to be made of down-hole reducing differential pump, casing annulus chamber, well head drain apparatus and ground power unit, it is characterized in that down-hole reducing differential pump and casing annulus chamber constitute annular space differential pressure chamber, and the dynamicliquid pressure that is provided by the reciprocating pump (17) in the power unit of ground is power, constitutes the combined pumping device of continuous drawing liquid with the well head drain apparatus.
2, reciprocating-hydraulic combined pumping device according to claim 1, it is characterized in that down-hole reducing differential pump is to be made of last pump barrel (23), following pump barrel (24), standing valve (2), plunger (1), hollow connecting rod (6), traveling valve (4) and liquid entering hole (5), its standing valve (2) is arranged at down the lower end of pump barrel (24), and traveling valve (4) is arranged on the plunger (1) of hollow connecting rod (6) lower end; Upper piston (8) in the upper end of hollow connecting rod (6) and the last pump barrel (23) links, and is provided with liquid entering hole (5) in the connection end of last pump barrel (23) and following pump barrel (24).
3, reciprocating-hydraulic combined pumping device according to claim 1, it is characterized in that annular space differential pressure chamber is made of the packet (3) of the annular space of outer sleeve (9) part with reducing differential pump and its inner drain pipe (10) and pump lower end thereof, one end of its inner drain pipe (10) is connected in the upper end of pump barrel on the reducing differential pump (23), and the other end then links by the drain apparatus of well head and the reciprocating pump (17) of ground power unit; The lower end of outer sleeve (9) is provided with packet (3) at the following pump barrel place of reducing differential pump, and its upper end then links with the reciprocating pump (17) of ground power unit.
4, reciprocating-hydraulic combined pumping device according to claim 1, it is characterized in that ground power unit is by reciprocating pump (17), fan-shaped escapement (16), static pulley group (15) (18), motor reduction gearbox (22) and connecting rod (21) constitute, the two ends of its reciprocating pump (17) link with cable wire (14) respectively, link by static pulley group (15) (18) and fan-shaped escapement (16), its balance cable wire (14) is connected an end of fan-shaped escapement (16), the other end is then walked around balance static pulley (19) and is linked with equilibrium block (20), and its fan-shaped escapement (16) then links by connecting rod (21) and motor reduction gearbox (22).
5, reciprocating-hydraulic combined pumping device according to claim 1, it is characterized in that the well head drain apparatus is made of four-way valve (11), safety valve (12) and hydraulic pressure unloading valve (13), four interfaces of its four-way valve (11) link with the import of hydraulic pressure unloading valve (13), safety valve (12), inner drain pipe (10) and reciprocating pump (17) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93119732 CN1034026C (en) | 1993-11-04 | 1993-11-04 | Reciprocating-hydraulic combined pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93119732 CN1034026C (en) | 1993-11-04 | 1993-11-04 | Reciprocating-hydraulic combined pumping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1102458A true CN1102458A (en) | 1995-05-10 |
| CN1034026C CN1034026C (en) | 1997-02-12 |
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ID=4993047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93119732 Expired - Fee Related CN1034026C (en) | 1993-11-04 | 1993-11-04 | Reciprocating-hydraulic combined pumping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034026C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001006125A1 (en) * | 1999-07-15 | 2001-01-25 | China Petroleum & Chemical Corporation | A mechanical oil recovery method and system with a sucker rod pump |
| CN104806494A (en) * | 2015-02-28 | 2015-07-29 | 汤洪 | Rodless hydraulic transmission oil pumping system |
-
1993
- 1993-11-04 CN CN 93119732 patent/CN1034026C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001006125A1 (en) * | 1999-07-15 | 2001-01-25 | China Petroleum & Chemical Corporation | A mechanical oil recovery method and system with a sucker rod pump |
| CN1085772C (en) * | 1999-07-15 | 2002-05-29 | 江苏石油勘探局石油工程技术研究院 | Parameters design method for mechanically oil-producing technology with rod pump. |
| US6640896B1 (en) | 1999-07-15 | 2003-11-04 | China Petroleum & Chemical Corporation | Mechanical oil recovery method and system with a sucker rod pump |
| CN104806494A (en) * | 2015-02-28 | 2015-07-29 | 汤洪 | Rodless hydraulic transmission oil pumping system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1034026C (en) | 1997-02-12 |
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