CN205895174U - Water conservancy weight on bit regulator - Google Patents
Water conservancy weight on bit regulator Download PDFInfo
- Publication number
- CN205895174U CN205895174U CN201620784844.4U CN201620784844U CN205895174U CN 205895174 U CN205895174 U CN 205895174U CN 201620784844 U CN201620784844 U CN 201620784844U CN 205895174 U CN205895174 U CN 205895174U
- Authority
- CN
- China
- Prior art keywords
- piston body
- bit
- wall
- weight
- outer sleeve
- 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.)
- Expired - Fee Related
Links
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- Earth Drilling (AREA)
Abstract
The utility model relates to a water conservancy weight on bit regulator, including the overcoat body and piston body, overcoat body upper end is fixed with the top connection, and overcoat body lower extreme is fixed with the lower clutch, installs the seal receptacle on the inner wall of lower clutch, the front portion of piston body is two step shapes, and the cover is equipped with the sealing washer on the anterior lateral wall of piston body, and the inner wall of sealing washer and the overcoat body forms sliding seal, the dabber of piston body is worn to establish in the centre bore of the overcoat body and lower clutch, and the outer wall of dabber forms sliding seal with the seal receptacle, and in the lower clutch upside along the exhaust hole of radially seting up two symmetries on the lateral wall of shell body lower part, it has the outage to open on the lateral wall of dabber lower part. The utility model discloses a stroke of the control piston body is adjusted the water conservancy presser and is applyed the weight on bit on the drill bit, reaches the mesh that the weight on bit can be adjusted for the better adaptation condition in the pit of water conservancy weight on bit. Simultaneously the utility model discloses simple structure, easy production, it is longe -lived, convenient to use, it is effectual.
Description
Technical field
This utility model be related to a kind of in the operations such as drilling well, well workover for adjusting the instrument of hydraulic thruster the pressure of the drill,
A kind of specifically related to waterpower the pressure of the drill actuator.
Background technology
Waterpower the pressure of the drill actuator is a kind of downhole tool being applied in the operations such as drilling well, well workover.It is that a kind of energy turns
Changing device, is pumped, using part circulating pump, a New well drilling technology for power, liquid pressure energy being converted into the pressure of the drill increment, changes
Become conventional drilling or other operation be that the weight of portion's drill collar on the lower applies the mode of the pressure of the drill, make drill bit or low portion drilling tool with
Other parts flexible connection in drill string, drill collar is given drill bit or the rigid pressurized of other instrument is changed into fluid power flexible pressurizing,
Overcome a variety of drawbacks of rigid pressurized, thus reaching high speed, high-quality, the purpose of inexpensive drilling well.Waterpower the pressure of the drill is adjusted
The operation principle of device hydraulic thruster is: during work, turn on pump circulating mud, and form pressure drop in instrument, this pressure drop acts on piston
On end face, form thrust, promote descent of piston, till stroke terminates, this thrust is exactly the pressure of the drill that drill bit needs.But it is existing
Hydraulic thruster due to the problem in its structure, hydraulic thruster amasss from rear piston surface of dispatching from the factory and cannot change, inside and outside instrument
Pressure reduction one timing, can only provide fixing the pressure of the drill, situ of drilling well cannot be adjusted, and then have certain negative shadow to field operation
Ring.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of waterpower the pressure of the drill actuator, and it can be according to down-hole situation
Adjust the pressure of the drill that hydraulic thruster is applied.
For achieving the above object, the technical scheme that this utility model is taken is:
A kind of waterpower the pressure of the drill actuator, including outer sleeve body and piston body, described outer sleeve body upper end is fixed with top connection, overcoat
Body lower end is fixed with lower contact, the inwall of lower contact is provided with seal receptacle, the front portion of described piston body is double step shape, lives
Sealing ring is set with the front outsides wall of cock body, sealing ring forms slipper seal with the inwall of outer sleeve body, described piston body
Mandrel is located in the center in the hole of outer sleeve body and lower contact, and the outer wall of mandrel forms slipper seal with seal receptacle, under shell body
Two symmetrical steam vents are radially offered on the upside of lower contact on the side wall in portion, the side wall of mandrel bottom has discharge opeing
Hole.
A diameter of 8-12mm of described steam vent.
Described outage list crack structure.
This utility model radially offers two symmetrical aerofluxuss on the side wall of outer lower housing portion on the upside of lower contact
Hole, steam vent is located at lower contact top, so can increase the effective travel of instrument, and the front portion of piston body is Double step shape
Shape it can be ensured that piston body reach bottom dead center position when steam vent be in inside and outside connected state, by control piston body stroke Lai
Adjust hydraulic thruster and be applied to the pressure of the drill on drill bit, reach the purpose that the pressure of the drill can adjust so that waterpower the pressure of the drill is preferably fitted
Answer the situation of down-hole.This utility model structure is simple simultaneously, easily produces, life-span length, easy to use, effect is good.
Brief description
Fig. 1 is the structural representation of this utility model embodiment.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of waterpower the pressure of the drill actuator, including outer sleeve body 2 and piston body 7, described outer sleeve body upper end is fixed
There is top connection 1, outer sleeve body lower end is fixed with lower contact 5, and the inwall of lower contact 5 is provided with seal receptacle, before described piston body
Portion is double step shape, and the front outsides wall of piston body is set with sealing ring, and sealing ring forms slip with the inwall of outer sleeve body
Sealing, the mandrel of described piston body is located in the center in the hole of outer sleeve body and lower contact, and the outer wall of mandrel and seal receptacle form cunning
Dynamic sealing, radially offers two symmetrical steam vents 4, mandrel bottom on the side wall of outer lower housing portion on the upside of lower contact
Side wall on have outage 6, outage list crack structure, be easy to control drain age velocity.
A diameter of 8-12mm of steam vent, steam vent is located at lower contact 5 top, shell body 2 bottom as far as possible, can increase as far as possible
The effective travel of instrument.
Claims (3)
1. a kind of waterpower the pressure of the drill actuator, including outer sleeve body and piston body it is characterised in that: described outer sleeve body upper end is fixed with
Joint, outer sleeve body lower end is fixed with lower contact, the inwall of lower contact is provided with seal receptacle, the front portion of described piston body is dual stage
Stepped shape, the front outsides wall of piston body is set with sealing ring, sealing ring forms slipper seal with the inwall of outer sleeve body, described
The mandrel of piston body is located in the center in the hole of outer sleeve body and lower contact, and the outer wall of mandrel forms slipper seal with seal receptacle,
Two symmetrical steam vents are radially offered on the upside of lower contact on the side wall of shell body bottom, the side wall of mandrel bottom is opened
There is outage.
2. waterpower the pressure of the drill actuator according to claim 1 it is characterised in that: a diameter of 8-12mm of described steam vent.
3. waterpower the pressure of the drill actuator according to claim 2 it is characterised in that: described outage list crack structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620784844.4U CN205895174U (en) | 2016-07-25 | 2016-07-25 | Water conservancy weight on bit regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620784844.4U CN205895174U (en) | 2016-07-25 | 2016-07-25 | Water conservancy weight on bit regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205895174U true CN205895174U (en) | 2017-01-18 |
Family
ID=57784895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620784844.4U Expired - Fee Related CN205895174U (en) | 2016-07-25 | 2016-07-25 | Water conservancy weight on bit regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205895174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911103A (en) * | 2020-08-11 | 2020-11-10 | 中国石油天然气集团有限公司 | Hydraulic booster and use method thereof |
-
2016
- 2016-07-25 CN CN201620784844.4U patent/CN205895174U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911103A (en) * | 2020-08-11 | 2020-11-10 | 中国石油天然气集团有限公司 | Hydraulic booster and use method thereof |
| CN111911103B (en) * | 2020-08-11 | 2023-10-20 | 中国石油天然气集团有限公司 | Hydraulic booster and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180725 Address after: 100028 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Co-patentee after: Drilling well two companies of Central Plains petroleum works Co., Ltd of China Petrochemical Industry Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Co-patentee after: SINOPEC ZHONGYUAN PETROLEUM ENGINEERING CO., LTD. Address before: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Co-patentee before: Drilling well two companies of Central Plains petroleum works Co., Ltd of China Petrochemical Industry Patentee before: SINOPEC OILFIELD SERVICE CORPORATION |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20200725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |