CN203796209U - Leakage-proof reducer tee for oilwell - Google Patents

Abstract

The utility model relates to a leakage-proof reducer tee for an oilwell. In the prior art, a blowout-proof leakage-proof packing box is arranged at the mouth of the oilwell, and blowout-proof leakage-proof functions are performed through the extrusion and blockage of a filler; when upward pressure for pumping oil from the oilwell is increased obviously, the leakage-proof effect is poor. The leakage-proof reducer tee adopts the structure that a diversion pipe is arranged; a diversion hole is formed in the side wall of the diversion pipe; an upper threaded head, which can be connected to a packing box, is arranged at the top end of the diversion pipe; a lower threaded head, which can be connected to an oil pipe, is arranged at the bottom end of the diversion pipe; the diversion pipe is sleeved with a pressure-relief cache pipe, and is sealed with the pressure-relief cache pipe by welding; the upper part of the pressure-relief cache pipe is cylindrical, and the lower part of the pressure-relief cache pipe takes the shape of an inverted cone; the inverted cone-shaped part laterally extends out of a diversion threaded head. The leakage-proof reducer tee can instantaneously release the impact force and pressure of well fluid moving upward, and then the well fluid flows into an underground tank or an oil pipeline along the diversion pipe behind the diversion threaded head; the well fluid moving upward cannot apply impact force to the upper packing box, so that the packing box can prevent the phenomena of oil leakage and oil blowout, which are caused by pressure. The leakage-proof reducer tee has the technical advantages of reasonable structure and obvious leakage-proof effect.

Description

A kind of oil well leakproof reducer tee

Technical field

the utility model relates to a kind of oil field operation equipment, is specifically related to a kind of oil well leakproof reducer tee.

Background technology

The Leakage of well mouth of oil well always is the focus technology difficult problem that oil recovery unit very payes attention in oil field operation process, the crude oil leakage forming in oil recovery process, not only cause the huge wasting of resources, and had a strong impact on the natural environment of periphery, cause the long-term pollution of the aspect such as soil, water source.For preventing the crude oil leakage of well mouth of oil well, general method is blowout prevention leak-proof device to be set as leakproof stuffing box at well mouth of oil well, the effect of leakproof blowout prevention is played in the extruding of this device by filler and obstruction, but raw stifled strong crowded effect is also not obvious, in long-term use procedure, the up pressure of oil well oil-pumping obviously increases, once filler filling is improper, or not carrying out in time necessary maintenance, stuffing box more or less all occurs the phenomenon of crude oil leakage.

Summary of the invention

The purpose of this utility model is to provide a kind of oil well leakproof reducer tee, fundamentally solves the Leakage of well mouth of oil well by the mode of dredging.

The technical scheme that the utility model adopts is:

A kind of oil well leakproof reducer tee, is characterized in that:

Be provided with mozzle, mozzle sidewall is provided with pod apertures; Mozzle top is the upper silk head for being connected with packing box, and bottom is the lower head for being connected with oil pipe;

Mozzle is arranged with pressure release buffer memory pipe outward, and seal welding between the two forms airtight fluid spatial cache; Pressure release buffer memory pipe top is cylindrical, and bottom is the taper shape closing up downwards, and conical portion extends laterally water conservancy diversion silk head.

The caliber of described mozzle is 73mm;

The caliber of described pressure release buffer memory pipe is 219-600mm;

The caliber of described water conservancy diversion silk head is 50-89mm.

The utlity model has following advantage:

Utilize the related oil well leakproof reducer tee of the utility model to replace after original common threeway, when well liquid is up to oil pipe end to reducer tee with oil pumper, it is large that caliber becomes suddenly, flow velocity declines rapidly, by the impact force of well liquid crude oil and pressure abrupt release, then flow into buried tank or petroleum pipeline along the drainage tube after water conservancy diversion silk head, up well liquid does not become impact force to the stuffing box on top, thereby stuffing box just there will not be the leakage of oil fuel injection event causing because of pressure, stuffing box only needs sticky glutinous crude oil on beam hanger to smooth out with the fingers in reducing tee, no longer bear well hydraulic coupling, have rational in infrastructure, the obvious technical advantage of leak preventing effect.

Brief description of the drawings

Fig. 1 is the utility model structure chart.

Fig. 2 is that A is to view.

Fig. 3 is that the utility model is installed and used figure.

In figure, 1-oil jacket, 2-oil pipe, 3-tubing coupling, 4-flowline, 5-reducer tee, 6-packing, 7-packing box, 8-gland for packing box, 9-beam hanger, the upper silk of 10-head, 11-pressure release buffer memory pipe, 12-water conservancy diversion silk head, the lower head of 13-, 14-mozzle, 15-pod apertures.

Detailed description of the invention

Below in conjunction with detailed description of the invention, the utility model is described in detail.

The utility model relates to a kind of oil well leakproof reducer tee, is connected to the exit of oil pipe 2, and upper end is connected with packing box 7, is mated use.

Described threeway is provided with mozzle 14, and caliber is 73mm, and mozzle 14 sidewalls are provided with pod apertures 15.Mozzle 14 tops are upper silk for being connected with packing box 7 10, and bottom is lower 13 for being connected with oil pipe 2.Mozzle 14 is outer is arranged with pressure release buffer memory pipe 11, and caliber is 219-600mm, and seal welding between the two forms airtight fluid spatial cache.Pressure release buffer memory pipe 11 tops are cylindrical, and bottom is the taper shape closing up downwards, and conical portion extends laterally water conservancy diversion silk 12, and caliber is 50-89mm.

In the time that well liquid is up to oil pipe 2 ends to reducer tee with oil pumper, well liquid flows into mozzle 14, enter pressure release buffer memory pipe 11 by pod apertures 15, it is large that caliber becomes suddenly, and flow velocity declines rapidly, and impact force and the pressure moment of well liquid crude oil are discharged, flow into buried tank or petroleum pipeline by the drainage tube after water conservancy diversion silk 12 again, the stuffing box of top only needs sticky glutinous crude oil on beam hanger to smooth out with the fingers in reducing tee, no longer bears well hydraulic coupling, and stuffing box just can not cause leakage of oil oil spout because of pressurized.

The oil well of current Yanchang Oilfield is gone up liquid measure at every turn and is respectively with stroke counter:

Stroke 1.5m's is 3800 milliliters;

Stroke 1.8m's is 4500 milliliters;

Stroke 2.4m's is 6000 milliliters;

Stroke 2.8m's is 7000 milliliters;

And capacity of the present utility model is 8000-16000 milliliter, so crude oil does not arrive stuffing box top substantially, thereby can effectively solve the problem of well head leakage of oil.

It is cited that content of the present utility model is not limited to embodiment, and the conversion of any equivalence that those of ordinary skill in the art take technical solutions of the utility model by reading the utility model manual, is claim of the present utility model and contains.

Claims (2)

1. an oil well leakproof reducer tee, is characterized in that:

Be provided with mozzle (14), mozzle (14) sidewall is provided with pod apertures (15); Mozzle (14) top is the upper silk head (10) for being connected with packing box (7), and bottom is the lower head (13) for being connected with oil pipe (2);

Mozzle (14) is outer is arranged with pressure release buffer memory pipe (11), and seal welding between the two, forms airtight fluid spatial cache; Pressure release buffer memory pipe (11) top is cylindrical, and bottom is the taper shape closing up downwards, and conical portion extends laterally water conservancy diversion silk head (12).

2. a kind of oil well leakproof reducer tee according to claim 1, is characterized in that:

The caliber of described mozzle (14) is 73mm;

The caliber of described pressure release buffer memory pipe (11) is 219-600mm;

The caliber of described water conservancy diversion silk head (12) is 50-89mm.