CN201554629U - Novel drilling pump hydraulic end - Google Patents
Novel drilling pump hydraulic end Download PDFInfo
- Publication number
- CN201554629U CN201554629U CN2009202702342U CN200920270234U CN201554629U CN 201554629 U CN201554629 U CN 201554629U CN 2009202702342 U CN2009202702342 U CN 2009202702342U CN 200920270234 U CN200920270234 U CN 200920270234U CN 201554629 U CN201554629 U CN 201554629U
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- China
- Prior art keywords
- drilling
- sap cavity
- piston
- cylinder sleeve
- pump hydraulic
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a drilling pump hydraulic end, belonging to the field of supporting mechanical equipment for petroleum drilling. The drilling pump hydraulic end is composed of a drilling fluid cavity, a diaphragm device and a lubricating fluid cavity, wherein, the diaphragm device is arranged between the drilling fluid cavity and the lubricating fluid cavity; the drilling pump hydraulic end is divided into two independent parts, namely, the drilling fluid cavity and the lubricating fluid cavity by the diaphragm; the drilling fluid is not directly contacted with a cylinder sleeve and a piston in the lubricating fluid cavity; the curve length of the outer surface of the diaphragm in the diaphragm device is equal to the curve length of the inner surface of an enclosure; the diaphragm becomes spherical or oval. The utility model has the advantages of improving the working environment of the piston and the cylinder sleeve, obviously reducing the abrasion of the piston and the cylinder sleeve, extending the service lives of the piston and the cylinder sleeve, reducing the cost of drilling and improving the time efficiency of drilling.
Description
Technical field
The utility model relates to a kind of drill pump hydraulic end, belongs to oil drilling supporting machinery apparatus field.
Background technique
Drilling pump is the capital equipment in the oil drilling fluid circulation, and its effect is exactly the energy that necessity is provided for the circulation of drilling fluid, and promptly with certain pressure and flow, the drilling fluid that will have certain density, viscosity is input into drilling tool and finishes the whole circulation process.Drilling pump is made up of power end and fluid end two large divisions, respectively the effect that starting force drives and drilling fluid is carried.When drilling pump is worked, in fluid end, because some solid phase particles directly enter in the fluid cylinder with drilling fluid, cause the heavy wear of parts such as piston and cylinder sleeve, cause easily damaged parts to reduce working life, maintenance load increases, drilling cost improves, and the drilling well timeliness reduces.At present, in order to improve the wear problem of piston and cylinder sleeve in the fluid end, number of research projects has been done by producer both at home and abroad, and has obtained certain achievement, mainly contains: the one, improve piston structure or material, as: patent 03135687.7; The 2nd, improve cylinder sleeve structure or material, as: patent 01108656.4.Although above-mentioned technology has effectively been alleviated the degree of wear of piston and cylinder sleeve, owing to the isolation of not accomplishing drilling fluid and piston, cylinder sleeve, the solid phase particles in the drilling fluid still directly contacts with piston, cylinder sleeve, so wearing and tearing are still more serious.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provides a kind of drilling fluid that makes directly not contact with piston, cylinder sleeve, and piston and the significantly reduced drill pump hydraulic end of barrel wear.
The utility model purpose is achieved through the following technical solutions: drill pump hydraulic end is made up of drilling well sap cavity, diaphragm apparatus, lubricated sap cavity.Wherein: the drilling well sap cavity is made up of suction valve, expulsion valve etc., and diaphragm apparatus is made up of housing, barrier film etc., and lubricated sap cavity is made up of cylinder sleeve, piston etc.Diaphragm apparatus is installed between drilling well sap cavity and the lubricated sap cavity.It is characterized in that: barrier film is divided into drilling well sap cavity and two independent parts of lubricated sap cavity with the drilling pump fluid end, drilling fluid not with lubricated sap cavity in cylinder sleeve, piston directly contact.
Described diaphragm apparatus is characterized in that barrier film outer surface curve length equates with the shell inner surface length of curve.
Described barrier film is characterized in that profile is a spheroidal or oval spherical after the barrier film complete expansion.
The beneficial effects of the utility model are: improved the working environment of piston and cylinder sleeve, significantly reduced the wearing and tearing of piston and cylinder sleeve, thereby prolonged the working life of piston and cylinder sleeve, reduced drilling cost, improved the drilling well timeliness.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a diaphragm apparatus structural representation of the present utility model.
Among the figure: 1. drilling well sap cavity; 2. diaphragm apparatus; 3. lubricated sap cavity; 4. cylinder sleeve; 5. piston; 6. expulsion valve; 7. suction valve; 8. housing; 9. barrier film; 10. drilling fluid lumen line; 11. Lubricants lumen line.
Embodiment
Below in conjunction with specific embodiment the utility model is described further.
Fig. 1 can be used as the structural representation of the utility model specific embodiment, and Fig. 2 can be used as the diaphragm apparatus structural representation of the utility model specific embodiment.Drill pump hydraulic end is made up of drilling well sap cavity 1, diaphragm apparatus 2, lubricated sap cavity 3.Wherein: drilling well sap cavity 1 is made up of suction valve 7, expulsion valve 6 etc., and diaphragm apparatus 2 is made up of housing 8, barrier film 9 etc., and lubricated sap cavity 3 is made up of cylinder sleeve 4, piston 5 etc.Diaphragm apparatus 2 is installed between drilling well sap cavity 1 and the lubricated sap cavity 3, by barrier film 9, the drilling pump fluid end is divided into drilling well sap cavity 1 and 3 two independent parts of lubricated sap cavity, thereby piston 5, cylinder sleeve 4 are kept apart with drilling fluid, 4 in piston 5, cylinder sleeve are contacted with Lubricants, thereby improved the working environment of piston 5, cylinder sleeve 4, reduced the wearing and tearing between piston 5 and the cylinder sleeve 4.
The housing 8 of diaphragm apparatus 2 can be used the cast steel manufacturing, and the main body profile is a spheroidal or oval spherical, and housing 8 one ends link to each other with drilling fluid lumen line 10, and the other end links to each other with Lubricants lumen line 11.Barrier film 9 is equipped with in housing 8 inside of diaphragm apparatus 2, and barrier film 9 need be selected the materials that resiliently deformable is good, toughness is big such as rubber during fabrication for use.Barrier film 9 outer surface curve length equate with housing 8 internal surface lengths of curve, are spheroidal or oval spherical after its complete expansion.
During drilling pump work, under the drive of power end, the piston 5 of fluid end is reciprocating in cylinder sleeve 4.When piston 5 during to lubricated sap cavity 3 external movement, form negative pressure in the lubricated sap cavity 3, barrier film 9 dilatancies, expulsion valve 6 cuts out, and drilling fluid is pushed suction valve 7 open, and drilling fluid enters in the drilling well sap cavity 1 then, finishes the imbibition process; When piston 5 during, the Lubricants pressurized in the lubricated sap cavity 3 to lubricated sap cavity 3 internal motions, along with increased pressure, barrier film 9 contraction deformations, suction valve 7 cuts out, and expulsion valve 6 is opened, and drilling fluid is discharged from outside the drilling well sap cavity 1, finishes the discharge opeing process.
Claims (3)
1. drill pump hydraulic end is made up of drilling well sap cavity, diaphragm apparatus, lubricated sap cavity, diaphragm apparatus is installed between drilling well sap cavity and the lubricated sap cavity, it is characterized in that: barrier film is divided into drilling well sap cavity and two independent parts of lubricated sap cavity with the drilling pump fluid end, drilling fluid not with lubricated sap cavity in cylinder sleeve, piston directly contact.
2. drill pump hydraulic end according to claim 1 is characterized in that: the barrier film outer surface curve length in the diaphragm apparatus equates with the shell inner surface length of curve.
3. drill pump hydraulic end according to claim 1 is characterized in that: profile is a spheroidal or oval spherical after the barrier film complete expansion in the diaphragm apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202702342U CN201554629U (en) | 2009-11-27 | 2009-11-27 | Novel drilling pump hydraulic end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202702342U CN201554629U (en) | 2009-11-27 | 2009-11-27 | Novel drilling pump hydraulic end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201554629U true CN201554629U (en) | 2010-08-18 |
Family
ID=42614310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202702342U Expired - Fee Related CN201554629U (en) | 2009-11-27 | 2009-11-27 | Novel drilling pump hydraulic end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201554629U (en) |
-
2009
- 2009-11-27 CN CN2009202702342U patent/CN201554629U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20111127 |