CN2114699U

CN2114699U - Sampler for hydraulic pump exploitation well

Info

Publication number: CN2114699U
Application number: CN 92210383
Authority: CN
Inventors: 吴宝民; 李伟; 马恩库
Original assignee: SHENYANG OIL EXTRACTING FACTORY LIAOHE PETROLIUM EXPLORATION BUREAU
Current assignee: SHENYANG OIL EXTRACTING FACTORY LIAOHE PETROLIUM EXPLORATION BUREAU
Priority date: 1992-03-11
Filing date: 1992-03-11
Publication date: 1992-09-02

Abstract

The utility model relates to a sampler for hydraulic pump oil exploitation wells, which is used in oilfields. The utility model is composed of a short connecting bush 2, a locking pin 3, an upper plunger piston 4, a sampling body 5, a pull rod 6, a position limiting short joint 10, a plunger piston 12 of a tailstock, etc., wherein the plunger piston of a tailstock of the sampler is easily pulled down. The utility model has the advantages of flexible locking, convenient use, good sealing of liquid samples, high sampling success rate and convenient maintenance; the cost price is only one fourth of domestic similar products, and the utility model can be used by matching with various hydraulic pumps.

Description

Sampler for hydraulic pump exploitation well

The utility model relates to a kind of oil field hydraulic pump producing well sampler.

Is to enroll one of groundwork of oil well (comprising the hydraulic pump producing well) data by airtight sampler from the down-hole sampling.At present, the sampler that is applied to the hydraulic pump producing well on the scene mainly is top sample device and special sampling pump.Its major defect is: (1) specimen chamber sealing is poor; (2) the sampling success rate is low; (3) complex structure damages the cost height easily.

Task of the present utility model is to provide a kind of novel hydraulic pump producing well sampler, this kind sampler good airproof performance, and sampling success rate height, and simple to operate, not fragile, and can be with the existing supporting application of hydraulic pump.

The utility model is to realize like this.It is made up of plug 1, short circuit lining 2, locking pin 3, upper plug 4, sampling body 5, pull bar 6, spring 7, back-up ring 8, seal assembly 9, spacing short circuit 10, tailstock lining 11 and tailstock plunger 12.Its number of assembling steps is as follows: tailstock plunger 12 is inserted in the tailstock lining 11, and spacing short circuit 10 afterbodys are connected with tailstock plunger 12 screw top; Sampling body 5 lower ends are loaded onto seal assembly 9 backs and are connected with tailstock lining 11 screw top; Upper plug 4 lower ends are connected with pull bar 6 screw top, then, are inserted in spring 7 and back-up ring 8 successively from pull bar 6 bottoms, and are last, pull bar 6 and the parts that install are packed in the sampling body 5 together, and make pull bar 6 bottom pin threads and the 10 top female connections of spacing short circuit; Short circuit lining 2 lower ends are connected with sampling body 5 screw top; The locking pin 3 of packing into and being with spring at the radial hole of upper plug 4 and short circuit lining 2, i.e. assembling finishes in the screwed hole of short circuit lining 2 with going on the plug 1 again.During use, these sampler short circuit lining 2 upper ends directly are connected on the following fluid cylinder of hydraulic pump (for the tail end of former hydraulic pump down), the same with the production of normal throwing pump, in its tube of devoting oneself to work.Ordinary production is (it is interior to guarantee that down-hole liquid sample enters the sampling body) anti-pump that rises after about 1 hour.After pump tripped out, tailstock plunger 12 had been drawn out and pin 3 lockings that are locked (this moment, the liquid sample was sealed in the sampling body 5).During setting-out, inhour rotation tailstock lining 11, liquid sample are promptly emitted in the setting-out hole from the sampling body 5.

The utility model is practical, can with the supporting use of various hydraulic pumps, this sampler sampling tailstock plunger is pulled out easily, lock handyly flexibly, liquid sample good airproof performance is difficult for leakage, the success rate of taking a sample height.This sampler structure is simple, and is cheap, and working service is convenient.Be suitable for and apply.

Fig. 1 is a general structure schematic diagram of the present utility model.

Fig. 2 is the schematic diagram under the utility model lock-out state.

Below in conjunction with accompanying drawing enforcement of the present utility model is illustrated.

Plug 1 of the present utility model is the cylindrical thread plug, and M5 * 0.75 pin thread is arranged on it; Short circuit lining 2 two ends are the short square pin thread of SF51mm, and middle is the through hole that multistage step is arranged, outside diameter φ 58mm, and there are the radial hole of double φ 5mm and the screwed hole of two M5 * 0.75mm in the surface; Locking pin 3 is the spring that two ends are bonded with φ 8 cylindrical pins; Upper plug 4 is cylindric, and there is M10 * 1 negative thread the lower end, and the top outer round surface has the radial hole of a φ 8.5mm, and there is the twice aprons slot middle and lower part and rubber seal is housed; Sampling body 5 peripheries have multistage step, and center lumen is indoor multistage step, and maximum outside diameter φ 58mm, upper and lower side have short square negative thread of SF51mm and pin thread respectively, and the lower end thread root has a φ 6mm setting-out hole; Pull bar 6 is for there being the round bar of two place's steps, and there is M10 * 1 pin thread at its two ends; Spring 7 is the helical spring of a long 100mm, middle footpath 17mm, makes of the carbon spring steel wires of diameter 2mm; Ring washer 8 thick 7mm, external diameter 42mm is evenly distributed with the oil guiding hole of 7 diameter 6mm on the cross section; Seal assembly 9 is the finished parts of hydraulic piston pump; Spacing short circuit 10 upper ends are M10 * 1mm negative thread, and the lower end is M16 * 1.5mm pin thread, and cylindrical has a step, maximum outside diameter 36mm; Tailstock lining 11 1 ends are single-order ladder through hole, and end face has 4 grooves, and the other end is short square negative thread of SF51mm and seam; Tailstock plunger 12 cylindricals have multistage step and two aprons slots are arranged and O-ring seal is housed, and there is M16 * 1.5mm negative thread the upper end, and the lower end is the region between the heart and the diaphragm hole, and the radial hole of 4 diameter 6mm is arranged at top, the region between the heart and the diaphragm hole.The material of each parts of the utility model requires as follows: pull bar 6 be 38CrMoAlA, and other is 45 steel, and requires to send out the orchid processing after modified, and hardness is HRC28-32.

Claims

1, a kind of oil field hydraulic pump producing well sampler, form by plug 1, short circuit lining 2, locking pin 3, upper plug 4, sampling body 5, pull bar 6, spring 7, back-up ring 8, seal assembly 9, spacing short circuit 10, tailstock lining 11 and tailstock plunger 12, it is characterized in that:

In a, the short circuit lining 2 upper plug 4 is housed, plug 1 is housed in the screwed hole, its upper end is threaded with fluid cylinder under the hydraulic piston pump, and the lower end is connected with sampling body 5 screw top;

The locking pin 3 of band spring is housed in the radial hole of b, upper plug 4 and short circuit lining 2;

C, upper plug 4 lower ends are threaded with pull bar 6, are with spring 7 and back-up ring 8 on the pull bar 6, and pull bar 6 lower ends are threaded with spacing short circuit 10 and are contained in the sampling body 5;

D, sampling body 5 lower ends and tailstock lining 11 tops are equipped with seal assembly 9 between the two to be threaded;

E, tailstock plunger 12 insert in the tailstock lining 11, and its top is connected with spacing short circuit 10 tailing screw flights.

2, waterpower pump sump sampler according to claim 1 is characterized in that, there is short square pin thread at short circuit lining 2 two ends, and middle its outer round surface has double radial hole and two screwed holes in order the through hole of multistage step to be arranged,

3, waterpower pump sump sampler according to claim 1 is characterized in that, locking pin 3 is the spring that two ends are bonded with two cylindrical pins.

4, hydraulic pump sampler according to claim 1 is characterized in that, upper plug 4 is cylindric, and there is negative thread the lower end, and the top outer round surface has a radial direction through hole, and there is the twice aprons slot middle and lower part and rubber seal is housed.

5, hydraulic pump sampler according to claim 1 is characterized in that, sampling body 5 cylindricals have multistage step, and center lumen is indoor multistage step, and upper and lower side has short square negative thread and pin thread respectively, and lower end pin thread root has a setting-out hole.

6, hydraulic pump sampler according to claim 1 is characterized in that, tailstock lining 11 1 ends are single-order ladder through hole, and end face has 4 grooves, and the other end is short square negative thread and seam.

7, hydraulic pump sampler according to claim 1 is characterized in that, tailstock plunger 12 cylindricals have multistage step, on two aprons slots are arranged and O-ring seal are housed, negative thread, lower end are arranged is the region between the heart and the diaphragm hole in its upper end, 4 radial holes are arranged at top, the region between the heart and the diaphragm hole.