CN205895174U - Water conservancy weight on bit regulator - Google Patents

Water conservancy weight on bit regulator Download PDF

Info

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
weight
bit
overcoat
pressure
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
Application number
CN201620784844.4U
Other languages
Chinese (zh)
Inventor
李茂生
王宏杰
陈本顺
张钒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinopec Zhongyuan Petroleum Engineering Co Ltd
Original Assignee
Drilling Well Two Cos Of Central Plains Petroleum Works Co Ltd Of China Petrochemical Industry
Sinopec Oilfield Service Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Drilling Well Two Cos Of Central Plains Petroleum Works Co Ltd Of China Petrochemical Industry, Sinopec Oilfield Service Corp filed Critical Drilling Well Two Cos Of Central Plains Petroleum Works Co Ltd Of China Petrochemical Industry
Priority to CN201620784844.4U priority Critical patent/CN205895174U/en
Application granted granted Critical
Publication of CN205895174U publication Critical patent/CN205895174U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

A kind of waterpower the pressure of the drill actuator
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.
CN201620784844.4U 2016-07-25 2016-07-25 Water conservancy weight on bit regulator Expired - Fee Related CN205895174U (en)

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)

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
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