CN2045420U

CN2045420U - Offset-adjusting device for pumping unit portal

Info

Publication number: CN2045420U
Application number: CN 88217184
Authority: CN
Inventors: 宋奎弼
Original assignee: Liaohe Petroleum Exploration Bureau Ciyutuo Oil Extraction Factory
Current assignee: Liaohe Petroleum Exploration Bureau Ciyutuo Oil Extraction Factory
Priority date: 1988-12-08
Filing date: 1988-12-08
Publication date: 1989-10-04

Abstract

The utility model relates to an offset-adjusting device for pumping unit portal. An air offset-adjusting and a gimbal offset-adjusting methods are often used for the offset of the existing oil well portal, the air offset-adjusting method has the defects that the offset-adjusting device must be inflated and can not be used under the condition of big back pressure in the oil well, and the gimbal offset-adjusting method has the defects that a polish rod is often bended and so on. The offset-adjusting device for pumping unit portal can adjust the offset of the well portal in the horizontal direction, which is composed of an offset-adjusting body, an eccentric shift joint, the guiding screws, etc. The maximal distance of the offset adjusting is 12 millimeters, and the offset-adjusting device for pumping unit portal can fundamentally adjust the offset of the well portal. The utility model has the advantages of simple structure, simple and available structure and low cost, which can be widely used for the offset-adjusting work of the oilfield pumping unit portal.

Description

Offset-adjusting device for pumping unit portal

The utility model relates to a kind of deviation correcting device of oil-field oil pumper well head.

Because the motion of sucker rod keeps tangent direction motion with horse head all the time,, cause the well head sealed packing to lose efficacy and cause crude oil to overflow through causing the deflection of well head and horse head after the running of normal phase; Have to adopt manual synchronizing and use the inclined to one side or universal device for adjusting deviation of controlled atmosphere that well head is proofreaied and correct in order to solve the well head deflection, will regularly inflate and to use to device for adjusting deviation when the former uses, work as in addition under the big situation of oil well pressure and back pressure and also should not use; Polished rod bending and oil well packing_seal bad phenomenon appear in the latter in use easily, even the problem of well head deflection also can not get eradicating like this.

The purpose of this utility model be for provide a kind of can be in the horizontal direction to the device of well head tuningout, it is mainly adjusted by two parts on the main body, the first half with its main body is proofreaied and correct tuningout, the bottom keeps the well head sealing, just can overcome the drawback that above-mentioned controlled atmosphere is inclined to one side and the universal joint device for adjusting deviation is brought.

The utility model is achieved in that

Be that example is illustrated to scheme below:

Accompanying drawing: rod-pumped well deviation correcting device schematic diagram

This apparatus main body is partly formed by upper and lower two, and promptly top is tuningout polished rod seal main body 2, packing box pressure cap 1; The bottom is hollow silk pressing stifled 7 and tuningout main body 4, eccentric shift joint 5 " O " RunddichtringO 6, moves handle 8, guider screw 9.

Well head correction process of the present utility model is: at first eccentric shift joint 5 is connected by screw thread and production tree before correction, then tuningout polished rod seal body 2, both wings gate 3 are bound up by polished rod sealer bottom joint 10 and tuningout main body 4, eccentric shift joint 5 and hollow silk pressing stifled 7 are embedded in the tuningout main body 4, move handle 8 then and tighten screw thread, this moment, guider screw 9 took out from tuningout main body 4, again the part screw thread of packing box pressure cap 1 is transferred pine, last screw thread again that hollow silk pressing is stifled 7, tuningout main body 4 unclamps, and promptly preparation is finished.

Well head when correction, as long as displacement tuningout combined body 4 in the horizontal direction makes oil-extractor polish-rod be in the center of eccentric shift joint 5, move handle, stifled the screwing of hollow silk pressing tightened guider screw 9 at last again and located, can finish well head correction process.

Because the utility model has adopted said mechanism, has fundamentally eradicated well head deflection problem, meanwhile this device also has characteristics such as simple in structure, that operation is easily capable, cheap, can be widely used in the correction of oilfield pumping well.

This practicality is provided by following examples

This device main body structure both wings gate bottom joint 10(is the pin thread of M60 * 2.5) link together with the top of tuningout main component 4, contact opening place between tuningout lower body part and the eccentric shift joint 5 twice " O " RunddichtringO 6 sealed interfaces, eccentric shift joint 5 bottoms are buckled with adopting to set with 2 1/2 inches oil pipe flats and are connected, after to the well head correction, connect with hollow silk pressing stifled 7 and tuningout main body 4 bottoms again, use guider screw 9 fastening at last, wherein " O " RunddichtringO material is that acrylonitrile-butadiene rubber is manufactured; Hollow silk pressing is stifled to be A ₃Steel matter, the interior screw thread of its outside screw thread specification and tuningout main body 4 is M170 * 2-3a standard.

Using the maximum tuningout distance of this device tuningout well head is 12 millimeters, at present install and use 68 at the rod-pumped well of Liaohe Oil Field, the oil well that a collection of well head deflection seriously can't be proofreaied and correct obtains correcting, and oil well does not have the oil spilling phenomenon so far to be taken place, and has reduced ground pollution.

Claims

1, a kind of well head device for adjusting deviation of oil pumper, be by packing box pressure cap 1 with tuningout polished rod seal main body 2 respectively by screwed connection on the both wings gate, there is a joint 10 to link a cover deviation correcting device in both wings gate bottom, it is characterized in that described deviation correcting device is to be contacted with the eccentric shift joint 5 that two road sealed packings are housed by tuningout main body 4, and be fixed on above the tuningout main body by hollow silk pressing stifled 7.

2, device according to claim 1, the bottom that it is characterized in that eccentric shift joint 5 is buckled with production tree with 2 1/2 inches oil pipe flats and is connected.

3, device according to claim 1 is characterized in that the sealed packing above the eccentric shift joint is " O " type rubber seal.