CN210660002U - Flushing fluid flow director for green drilling - Google Patents

Abstract

The utility model relates to a flush fluid divertor for green well drilling, including the open honeycomb duct in both ends, the honeycomb duct is connected with the sediment pipe that draws with the honeycomb duct intercommunication between two uncovered, is equipped with in the honeycomb duct to be used for changing the flush fluid to the kuppe of drawing the sediment intraductal by the honeycomb duct, sets up the centre bore that supplies the drilling tool to pass on the kuppe. The utility model relates to a can guarantee to pollute among the field repair process well drilling upward return drill chip along the divertor that sets up the path motion, show the drill chip that contains the pollutant among the reduction well drilling process to the secondary pollution of earth's surface environment.

Description

Flushing fluid flow director for green drilling

Technical Field

The utility model relates to a drilling operation construction equipment technical field, concretely relates to flush fluid divertor for green well drilling.

Background

With the rapid development of industrial and agricultural in China, national economy continuously gains brilliant results, but the continuous deterioration of ecological environment is accompanied in the soil and underground water pollution remediation process, no matter whether the pollution site investigation, the pollution site risk evaluation, the pollution site remediation or the pollution site monitoring needs to carry out drilling and sampling work, especially in the deep underground water pollution site remediation, the drilling needs to adopt flushing liquid to cool and drill and carry drill cuttings, and the consequent problem is that pollutants in the soil and underground water are carried to the ground surface to cause secondary pollution to the ground surface environment, and if the pollutants are VOCs and SVOCs pollutants, the health risks of remediation workers and peripheral people are further increased seriously.

At present, in the aspect of repairing, drilling and sampling a polluted site, a technical method of utilizing civil engineering investigation, core drilling or hydrographic well drilling is still followed, a site drilling worker with serious pollution can wear a protective clothing to perform drilling operation, but the analysis of the current polluted site drilling has the following problems:

when the conventional drilling method is adopted for construction operation, the upward-returning flushing fluid can splash everywhere, overflow and the like, and secondary pollution is caused to the surface environment.

Although in general, the field construction personnel can wear the protective clothing, but have VOCs, SVOCs class pollutant's place, the pollutant can flow in the surrounding environment along with the air, causes the influence to the health of surrounding life crowd.

SUMMERY OF THE UTILITY MODEL

The utility model discloses based on pollute not enough more than the place well drilling at present, provide a flush fluid divertor for green well drilling for pollute the place and restore the in-process and carry out green well drilling operation, show the drill chip that contains the pollutant among the reduction well drilling process to the secondary pollution of earth's surface environment.

The utility model discloses a realize through following technical scheme:

the utility model provides a flush fluid divertor for green well drilling, includes the honeycomb duct of both ends are open, and the honeycomb duct is connected with the sediment pipe that draws with the honeycomb duct intercommunication between two opennesses, is equipped with in the honeycomb duct to be used for turning to the flush fluid to draw the kuppe in the sediment pipe by the honeycomb duct, sets up the centre bore that supplies the drilling tool to pass on the kuppe.

This scheme is through setting up the honeycomb duct and drawing the sediment pipe, utilizes the kuppe to turn to the flush fluid, makes the flush fluid can concentrate through drawing the sediment pipe and collects and handle, can avoid going up the flush fluid that returns to appear splashing everywhere, the circumstances such as overflow, reduce and stop and cause secondary pollution to the earth's surface environment.

Preferably, the air guide sleeve in the air guide pipe is an arc-shaped curved mask.

The arc-shaped curved mask is in smooth transition, the direction change of the washing liquid is stable and natural, and the stability and smoothness of the fluid director are improved.

Furthermore, a seal ring seat with an opening in the middle is fixed above the air guide sleeve in the air guide pipe, and a rubber seal ring is arranged on the seal ring seat in the air guide pipe.

The seal ring seat is used for supporting the rubber seal ring, and the impact force of flushing liquid on the air guide sleeve can be absorbed by utilizing the buffering of the rubber seal ring, so that the stability of the air guide sleeve is ensured.

Preferably, the center of the middle opening, the center of the rubber seal ring and the center of the central hole are all located on the axis of the flow guide pipe.

The concentric arrangement ensures that the drilling tool can not contact other parts when passing through the guide pipe, and the work of the drilling tool is not influenced.

Furthermore, a transition pipe is fixed on the inner wall of the diversion pipe opposite to the slag guiding pipe, and the transition pipe is provided with a connecting surface matched with the diversion cover in shape and is fixed with one end of the diversion cover through the connecting surface.

Furthermore, the other end of the air guide sleeve is fixed with the seal ring seat.

The transition pipe and the seal ring seat are used for fixing the air guide sleeve in the air guide sleeve, wherein the transition pipe is provided with a connecting surface matched with the shape of the air guide sleeve, on one hand, the transition pipe is favorable for being fixed with the air guide sleeve, on the other hand, the impact of flushing liquid can be buffered, and the stability of the air guide sleeve is ensured.

Furthermore, the guide pipe is connected with the flange and the flange gland at the opening above the air guide sleeve.

The rubber seal ring is sealed in the guide pipe through the flange and the flange gland by an opening above the guide cover.

Furthermore, the opening of the flow guide pipe below the flow guide cover is connected with a wellhead pipe through a flange.

The lower end of the flow guide pipe is connected with the wellhead pipe through a flange, and the wellhead pipe can be inserted into a well or connected with the wellhead pipe of the well, so that the flow guider is convenient to install and fix.

The utility model has the advantages that:

(1) the drilling work of a polluted site is carried out, upward and backward drill cuttings in the drilling can be discharged from the slag guide pipe along the path arranged on the fluid director, pollutants carried to the ground surface are collected and treated in a centralized manner, and the secondary pollution of the pollutants to the environment is greatly reduced.

(2) The device independent of the drilling equipment can change the size in time according to the drilling tool parameters to be matched with different drilling tools and different drilling processes.

(3) The structure is simple, the processing is convenient, and the field processing and the adjustment of the parameters of the fluid director are convenient.

Drawings

FIG. 1: the front view of the utility model;

FIG. 2: the top view of the utility model;

FIG. 3: the utility model discloses a section view.

In the figure: 1-mounting a flange gland; 2-upper flange; 3-a flow guide pipe; 4-lower flange; 5-a wellhead pipe flange; 6-wellhead pipe; 7-bolt; 8-a slag guide pipe; 9-rubber seal ring; 10-a seal ring seat; 11-air guide sleeve, 12, transition pipe, 13 and connecting surface.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

The utility model discloses an overall design thinking: at present, in the soil and underground water polluted site remediation, a rotary (or rotary impact) drilling process is generally adopted, a drill rod can be in a rotary (or rotary plus vibration) state at a wellhead position, but the axial center of the drill rod generally swings slightly, and a flushing fluid deflector is designed based on the working conditions.

The utility model provides a flush fluid divertor for green well drilling, includes the uncovered honeycomb duct 3 in both ends, and honeycomb duct 3 is connected with the sediment pipe 8 that draws with honeycomb duct 3 intercommunication between two uncovered, is equipped with in the honeycomb duct 3 to be used for turning to the flush fluid to the kuppe 11 that draws in the sediment pipe 8 by honeycomb duct 3, sets up the centre bore that supplies the drilling tool to pass on the kuppe 11.

In order to ensure that the flushing liquid can be stably kept when being redirected to the slag guiding pipe 8 by the flow guiding pipe 3, the flow guiding cover 11 in the flow guiding pipe 3 is an arc-shaped curved face cover, the surface is smooth, the flushing liquid can be redirected to the slag guiding pipe 8 in a smooth transition mode, the slag guiding pipe 8 is provided with a slag discharging hole, and the flushing liquid, the drilling slag and the like can be collected conveniently and intensively.

A seal ring seat 10 with an opening in the middle is fixed above the flow guide cover 11 in the flow guide pipe 3, and a rubber seal ring 9 is arranged on the seal ring seat 10 in the flow guide pipe 3. Referring to fig. 2 and 3, the rubber seal ring 9 is divided into three layers to form a multi-layer sealing structure, the rubber seal ring 9 is placed on the seal ring seat 10, and the upper flange gland 1 is pressed on the rubber seal ring 9 by the bolts 7.

The center of the middle opening, the center of the rubber seal ring 9 and the center of the center hole are all positioned on the axis of the flow guide pipe 3.

As shown in fig. 3, a transition pipe 12 is fixed on the inner wall of the draft tube 3 opposite to the slag guiding pipe 8, the transition pipe 12 is provided with a connecting surface 13 matched with the shape of the draft hood 11 and is fixed with one end of the draft hood 11 through the connecting surface 13, and the other end of the draft hood 11 is fixed with the seal ring seat 10.

The opening of the draft tube 3 below the draft hood 11 is connected with a wellhead pipe 6 through a flange. In the embodiment, the flange comprises an upper flange 2, a lower flange 4 and a wellhead pipe flange 5, wherein the lower flange 4 is in bolt connection with the wellhead pipe flange 5;

referring to fig. 3, the diameters of the central holes of the flange gland 1 of the upper flange 2, the rubber seal ring 9, the seal ring seat 10, the transition pipe 12, the air guide sleeve 11, the lower flange 4 and the wellhead pipe flange 5 are determined according to the size of the drilling tool.

The utility model discloses a work includes following step:

(1) installing a fluid director: firstly, determining the parameters of the fluid director according to the design of the well drilling and the size of the drilling tool, connecting the well mouth pipe 6 of the fluid director with the well mouth pipe of the well mouth, and inserting the well mouth pipe 6 of the fluid director into the hole for a certain depth if the well mouth pipe of the well mouth is not available. After the drilling machine is in place, a drilling rod of the drilling tool sequentially penetrates through the upper flange gland 1, the upper flange 2, the rubber seal ring 9, the flow guide cover 11, the lower flange 4 and the wellhead pipe flange 5 from top to bottom and is placed at the bottom of the well.

(2) Drilling construction: the drilling tool begins to creep into after arriving the shaft bottom, the flush fluid returns to the well head position from the shaft bottom, the flush fluid carries in drill chip and the annular gap of pollutant at first entering drilling rod and honeycomb duct 3, continue up motion along the annular gap under the pressure effect, when the flush fluid moves 11 positions of kuppe, under the effect of kuppe 11 and rubber seal ring 9, the unable up motion of flush fluid, simultaneously because kuppe 11 is a smooth curved surface, the flush fluid can be under 11 controls of kuppe, flow to in the slag guide pipe 8 through honeycomb duct 3.

(3) And (3) pollutant collection: the flushing fluid carries drill cuttings and pollutants to be discharged from a slag discharge port of the slag guide pipe 8, and the flushing fluid is collected by a pollutant collecting device connected with the slag discharge port and is used for subsequent treatment.

Therefore, the centralized collection and treatment of the upward flushing fluid can be ensured, and the secondary pollution to the surface environment and the health influence on surrounding people are reduced.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.

Claims (8)

1. A flushing fluid divertor for green drilling, characterized in that: the guide pipe is connected with a slag guide pipe communicated with the guide pipe between the two openings, a guide cover used for guiding flushing liquid to the slag guide pipe from the guide pipe is arranged in the guide pipe, and a center hole for a drilling tool to penetrate through is formed in the guide cover.

2. A flushing fluid deflector for green drilling according to claim 1, characterized in that: the air guide sleeve in the air guide pipe is an arc-shaped curved face mask.

3. A flushing fluid deflector for green drilling according to claim 2, characterized in that: a sealing ring seat with an opening in the middle is fixed above the flow guide cover in the flow guide pipe, and a rubber sealing ring is arranged on the sealing ring seat in the flow guide pipe.

4. A flushing fluid deflector for green drilling according to claim 3, characterized in that: the center of the middle opening, the center of the rubber seal ring and the center of the center hole are all positioned on the axis of the flow guide pipe.

5. The flushing fluid deflector for green drilling according to claim 4, characterized in that: the inner wall of the diversion pipe opposite to the slag guiding pipe is fixed with a transition pipe, and the transition pipe is provided with a connecting surface matched with the shape of the diversion cover and is fixed with one end of the diversion cover through the connecting surface.

6. A flushing fluid deflector for green drilling according to claim 5, characterized in that: the other end of the air guide sleeve is fixed with the seal ring seat.

7. A flushing liquid deflector for green drilling according to claim 1 or 6, characterized in that: the guide pipe is connected with the flange and the flange gland at the opening above the guide cover.

8. The flushing fluid deflector for green drilling as claimed in claim 7, wherein: the opening of the flow guide pipe below the flow guide cover is connected with a wellhead pipe through a flange.

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