CN104389540A - Large water hole bypass valve for screw drill - Google Patents
Large water hole bypass valve for screw drill Download PDFInfo
- Publication number
- CN104389540A CN104389540A CN201410586769.6A CN201410586769A CN104389540A CN 104389540 A CN104389540 A CN 104389540A CN 201410586769 A CN201410586769 A CN 201410586769A CN 104389540 A CN104389540 A CN 104389540A
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- bypass
- bypass valve
- way valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 3
- 238000005553 drilling Methods 0.000 abstract description 19
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Valve Housings (AREA)
- Multiple-Way Valves (AREA)
- Check Valves (AREA)
Abstract
The invention relates to the technical field of manufacturing of petroleum drilling tools, in particular to a large water hole bypass valve for a screw drill. The large water hole bypass valve comprises a bypass valve body, and a snap spring, a spacing plate, a sieve plate and a spacing plate mounted in a bypass hole of the bypass valve body in sequence, wherein a one-way valve is additionally mounted in the bypass hole, and mainly consists of a one-way valve body, a spring, a valve core and an internal hexagonal nut; a step-shaped inner hole is formed in the one-way valve body; the spring is positioned in a small hole of the step-shaped inner hole of the one-way valve body; one end of the spring is connected with the top end of the valve core; and the hexagonal nut is in threaded connection with the one-way valve body. Such parts as valve cores and valve sleeves with conventional model numbers in the bypass valve body are reduced, so that the internal structure is simple, is easy to be processed, and is convenient to be assembled; and the parts can be conveniently replaced in a well mouth, so that the maintenance cost is saved. The internal annulus of the bypass valve body is largely improved, so that the vertical pipe pressure loss is reduced.
Description
Technical field
The present invention relates to oil drilling tool manufacturing technology field, particularly relate to the large hydrophthalmia bypass valve of a kind of helicoid hydraulic motor.
Background technology
At present, when using down-hole helicoid hydraulic motor in the drilling engineering of petroleum gas, in order to balance the pressure inside and outside drilling tool in the process of lower brill, in the process pulled out of hole, the drilling mud in drilling tool can be flowed rapidly in pit shaft and can not take ground pollution rig floor to, in drilling process, make drilling fluid become the machine power promoting drill bit, general in the combination of drilling tool all with a drilling tool by-pass valve, as the anti-pricked bypass valve that applicant applies for a few days ago, publication number: CN 104033117 A, the spool of general drilling tool by-pass valve, spring and valve seat and be put into valve body successively from male joint one end of valve body, valve body inner edge arranges one circlip groove, back-up ring is installed, to prevent spool, valve seat is fallen in well, due in whole drilling process, the endoporus of spool is far smaller than the endoporus of drill string, in drilling process, then produce once unnecessary pressure raise and flow velocity quickening, certain percussion and the pressure loss are caused to helicoid hydraulic motor.
Summary of the invention
The object of the invention is to the deficiency overcoming above-mentioned technology, and provide a kind of helicoid hydraulic motor large hydrophthalmia bypass valve, structure is simple, reduces the loss of standpipe pressure.
The present invention for achieving the above object, by the following technical solutions: the large hydrophthalmia bypass valve of a kind of helicoid hydraulic motor, it is characterized in that: comprise bypass valve valve body, and the jump ring be arranged on successively in the by-pass prot of described bypass valve valve body, dividing plate, sieve plate, dividing plate, also one way valve is installed in described by-pass prot, described one way valve is primarily of one way valve valve body, spring, spool and interior six square nuts are formed, stairstepping endoporus is provided with in described check valve body, described spring is placed in the aperture of the ladder endoporus of one way valve valve body, described spring one end is connected with the top of described spool, described spool is placed in the macropore of the ladder endoporus of described one way valve valve body, the end of described spool coordinates with described six square nuts, described six square nuts are threaded with described one way valve valve body.Decrease the component such as spool, valve pocket of conventional model at bypass valve valve inner, internal construction be simply easy to processing, easy to assembly and can well head be convenient for changing component save maintenance cost.Bypass valve valve inner annular space is greatly improved, and decreases the loss of standpipe pressure.
The top of described spool is fixed with lead, and described spring housing is connected on described lead.Can ensure that axle of spring moves by lead, prevent spring from causing due to inclination spring ineffective.
Described spool is provided with circular hole.
The top of described spool is that chamfering is arranged.Chamfering is set and can improves itself and one way valve valve seal compactness.
The invention has the beneficial effects as follows: structure of the present invention is simple, and one way valve is arranged in the by-pass prot of valve body, in drilling process, drilling tool internal pressure is greater than external pressure one way valve and closes, and under termination of pumping state, then spring top leads to spool and keeps drilling tool internal and external pressure balance.Decrease the component such as spool, valve pocket of conventional model at bypass valve valve inner, internal construction be simply easy to processing, easy to assembly and can well head be convenient for changing component save maintenance cost.Bypass valve valve inner annular space is greatly improved, and decreases the loss of standpipe pressure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of one way valve valve body in the present invention.
Detailed description of the invention
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing and preferred embodiment, as shown in Figure 1, the large hydrophthalmia bypass valve of a kind of helicoid hydraulic motor, comprise bypass valve valve body 1, and the jump ring 2 be arranged on successively in the by-pass prot of described bypass valve valve body, dividing plate 3, sieve plate 4, dividing plate 5, in described by-pass prot, one way valve 6 is also installed, as shown in Figure 2, described one way valve 6 is primarily of one way valve valve body 7, spring 8, spool 9 and interior six square nuts 10 are formed, stairstepping endoporus 11 is provided with in described check valve body, described spring is placed in the aperture 12 of the ladder endoporus of one way valve valve body, described spring one end is connected with the top of described spool, described spool is placed in the macropore 13 of the ladder endoporus of described one way valve valve body, the end of described spool coordinates with described six square nuts, described six square nuts are threaded with described one way valve valve body.Decrease the component such as spool, valve pocket of conventional model at bypass valve valve inner, internal construction be simply easy to processing, easy to assembly and can well head be convenient for changing component save maintenance cost.Bypass valve valve inner annular space is greatly improved, and decreases the loss of standpipe pressure.The top of described spool is fixed with lead, and described spring housing is connected on described lead.Can ensure that axle of spring moves by lead, prevent spring from causing due to inclination spring ineffective.Described spool is provided with circular hole.The top of described spool is that chamfering is arranged.Chamfering is set and can improves itself and one way valve valve seal compactness.
Structure of the present invention is simple, and one way valve is arranged in the by-pass prot of valve body, and in drilling process, drilling tool internal pressure is greater than external pressure one way valve and closes, and under termination of pumping state, then spring top leads to spool and keeps drilling tool internal and external pressure balance.Decrease the component such as spool, valve pocket of conventional model at bypass valve valve inner, internal construction be simply easy to processing, easy to assembly and can well head be convenient for changing component save maintenance cost.Bypass valve valve inner annular space is greatly improved, and decreases the loss of standpipe pressure.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. the large hydrophthalmia bypass valve of helicoid hydraulic motor, it is characterized in that: comprise bypass valve valve body, and the jump ring be arranged on successively in the by-pass prot of described bypass valve valve body, dividing plate, sieve plate, dividing plate, also one way valve is installed in described by-pass prot, described one way valve is primarily of one way valve valve body, spring, spool and interior six square nuts are formed, stairstepping endoporus is provided with in described check valve body, described spring is placed in the aperture of the ladder endoporus of one way valve valve body, described spring one end is connected with the top of described spool, described spool is placed in the macropore of the ladder endoporus of described one way valve valve body, the end of described spool coordinates with described six square nuts, described six square nuts are threaded with described one way valve valve body.
2. the large hydrophthalmia bypass valve of helicoid hydraulic motor according to claim 1, it is characterized in that: the top of described spool is fixed with lead, described spring housing is connected on described lead.
3. the large hydrophthalmia bypass valve of helicoid hydraulic motor according to claim 1, is characterized in that: described spool is provided with circular hole.
4. the large hydrophthalmia bypass valve of helicoid hydraulic motor according to claim 1, is characterized in that: the top of described spool is that chamfering is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410586769.6A CN104389540A (en) | 2014-10-28 | 2014-10-28 | Large water hole bypass valve for screw drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410586769.6A CN104389540A (en) | 2014-10-28 | 2014-10-28 | Large water hole bypass valve for screw drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104389540A true CN104389540A (en) | 2015-03-04 |
Family
ID=52607489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410586769.6A Pending CN104389540A (en) | 2014-10-28 | 2014-10-28 | Large water hole bypass valve for screw drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104389540A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217982A (en) * | 2017-07-11 | 2017-09-29 | 中煤科工集团西安研究院有限公司 | Underground coal mine drilling multistage deslagging air screw motor |
| CN108019170A (en) * | 2017-12-21 | 2018-05-11 | 天津立林石油机械有限公司 | Safety valve |
-
2014
- 2014-10-28 CN CN201410586769.6A patent/CN104389540A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217982A (en) * | 2017-07-11 | 2017-09-29 | 中煤科工集团西安研究院有限公司 | Underground coal mine drilling multistage deslagging air screw motor |
| CN108019170A (en) * | 2017-12-21 | 2018-05-11 | 天津立林石油机械有限公司 | Safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |