Simple well mouth high-pressure sealing device for electric pump
Technical Field
The embodiment of the utility model provides a relate to oil and gas oil recovery field, concretely relates to simple and easy well head high pressure seal device of charge pump.
Background
The electric submersible pump is more and more widely applied in the field of oil extraction, is maintenance-free, and has long pump detection period, thus being popular in many oil fields. In particular, in the later stage of oil well production, a large amount of water injection and oil replacement processes are applied, the electric pump has large discharge capacity and helps to improve the recovery ratio to obtain large-scale application, the electric submersible pump is a multistage centrifugal pump working underground and is put into a well together with an oil pipe, a ground power supply transmits electric energy to the underground submersible motor through a transformer, a control screen and a power cable, so that the submersible motor drives the multistage centrifugal pump to rotate, the electric energy is converted into mechanical energy, and well fluid in the oil well is lifted to the ground. The electric submersible pump is used as important mechanical oil extraction equipment, and a cable is required to be connected to enable the equipment to work normally, and the cable is directly connected through a wellhead when being connected.
When the simple well mouth of the existing electric pump is used, the electric cable connected with the electric pump directly penetrates out of the through hole, the three cables are sealed under the extrusion action of the rubber, if the extrusion force is too large, the cables are easily extruded and damaged, the cables are affected in use, once the extrusion force is too small, the phenomenon that oil leaks from the well mouth is easily formed, and the environment is polluted.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a simple and easy well head high pressure seal device of charge pump to solve among the prior art because cable electricity now directly wear out from passing through the hole when connecing, and seal up three cables through the extrusion of rubber, if extruded strength is too big, cause crowded hindering to the cable easily, lead to the use of cable to be influenced, and in case extrusion strength undersize, form the phenomenon that fluid leaked from the well head again easily, cause the problem of pollution to the environment.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
the utility model provides a simple and easy well head high pressure seal device of charge pump the lateral wall of the simple and easy well head of charge pump has the adapter through awl thread sealing connection, the end-to-end connection of adapter has the high pressure seal head be provided with in the adapter with cable junction's in the well cable lead, the other end of cable lead is worn out the high pressure seal head.
As an optimized scheme of the utility model, the high pressure seal head passes through the clamp to be fixed on the adapter.
As an optimized scheme of the utility model, the high pressure seal head with be equipped with the sealed steel ring between the adapter.
As an optimized proposal of the utility model, the high-pressure sealing head and the resin for the cable lead are solidified into a whole.
As an optimized scheme of the utility model, the cable lead wears out the part of high pressure sealing head is equipped with the cable pillar.
As a preferred scheme of the utility model, be equipped with in the simple and easy well head of charge pump and place the recess, it is equipped with the promotion piece with the simple and easy well head sliding connection of charge pump in the recess to place, promote one side of piece and pass through the dwang and be connected with the simple and easy well head of charge pump, just fixed mounting has the promotion spring between the simple and easy well head of promotion piece and charge pump, the opposite side sliding connection who promotes the piece has rubber briquetting, rubber briquetting and promotion piece between fixed mounting have a connecting spring.
The utility model discloses an embodiment has following advantage:
when the device is used, a cable can be led out through the adapter which is in sealing connection with the well mouth, and secondary sealing is realized on the cable through the high-pressure sealing head, so that the sealing grade of the simple well mouth of the electric pump is fully improved, and the condition that oil is leaked to pollute the environment is avoided; and the cable is not influenced in the whole operation process, and the problems of cable sealing and crushing are effectively solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
FIG. 1 is a block diagram of the present invention;
fig. 2 is a front cross-sectional view of the simple well head of the electric pump of the utility model.
In the figure:
1-simple well mouth with electric pump; 2-an adapter; 3, clamping a hoop; 4-sealing the steel ring; 5-high pressure sealing head; 6-cable lead; 7-cable protective pipe;
101-placing a groove; 102-a push block; 103-rotating rod; 104-a push spring; 105-rubber briquetting; 106-connecting the spring.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-2, the utility model provides a simple and easy well head high pressure seal device of charge pump the lateral wall of the simple and easy well head of charge pump 1 has adapter 2 through awl thread sealing connection, and this adapter 2 can also be for threaded connection for welding etc. with the simple and easy well head 1's of charge pump connected mode, and the preferred threaded connection of this department, the end-to-end connection of adapter 2 has high-pressure sealing head 5 be provided with the cable lead 6 with cable junction in the well in the adapter 2, the other end of cable lead 6 is worn out high-pressure sealing head 5, this high-pressure sealing head 5 cooperation clamp 3 can realize secondary seal, and because of high-pressure sealing head 5 with cable lead 6 solidifies as an organic whole with resin, so cable lead 6 can not slide at will, and its position is fully fixed to the condition mode that the cable was avoided being worn and torn.
This equipment is when using, directly makes the simple and easy well head 1 upper portion lower part of charge pump all be connected with the oil pipe nipple joint, later get up whole hoist and mount again, be connected with the oil pipe hanger in the oil well, then be connected adapter 2 through the lateral wall of the simple and easy well head 1 of charge pump through the awl screw thread to form a seal, because of high-pressure sealing head 5 with be equipped with sealed steel ring 4 between the adapter 2, this sealed steel ring 4 is for making can not have great clearance between high-pressure sealing head 5 and the adapter 2, so treat that adapter 2 installs the back, the clearance clamp between adapter 2 and the high-pressure sealing head 5 is pressed from both sides tightly to form secondary seal through sealed steel ring 4 of rethread and clamp 3's pressure tight effect, then dock cable lead 6 with the cable in the well, later make equipment wholly transfer, until sitting on oil pipe head, compress tightly can with the bolt.
High pressure seal head 5 passes through clamp 3 to be fixed on adapter 2, this clamp 3 can press from both sides the clearance between adapter 2 and the high pressure seal head 5 through pressure when using and press from both sides tightly in order to form sealedly.
The cable lead 6 is worn out the part of high pressure sealing head 5 is equipped with cable protective tube 7, and this cable protective tube 7 can hold up and protect cable lead 6, and the diameter of this cable protective tube 7 is greater than the diameter of cable lead 6, so cable lead 6 has sufficient space activity occasionally in cable protective tube 7 to when having avoided cable lead 6 to be connected with external cable, the condition that lead wire length is short to lead to the user can't pull out cable lead 6 appears takes place.
Be equipped with in the simple and easy well head of charge pump 1 and place recess 101, the position that should place recess 101 and set up is unfixed, as long as be in insert through-hole 107 and still can play secondary seal's effect can, it is equipped with in the recess 101 and promotes piece 102 with the simple and easy well head 1 sliding connection of charge pump, it is connected with the simple and easy well head 1 of charge pump through dwang 103 to promote one side of piece 102, the one end of this dwang 103 with promote piece 102 and rotate and be connected, and the other end and the simple and easy well head 1 sliding connection of charge pump of dwang 103, just it has promotion spring 104 to promote fixed mounting between piece 102 and the simple and easy well head 1 of charge pump, the opposite side sliding connection who promotes piece 102 has rubber briquetting 105, fixed mounting.
When this simple well head 1 of charge pump is installed, rubber briquetting 105 can be promoted to slide along placing recess 101, connecting spring 106 can receive the atress extrusion simultaneously, connecting spring 106's elasticity increase promptly, thereby promote the sliding of promotion piece 102, make dwang 103 function, then promote spring 104 and also can receive the extrusion, make the position that promotes piece 102 restricted, rubber briquetting 105 can paste all the time on the well head connecting piece promptly, thereby realize the secondary seal.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.