CN214464002U

CN214464002U - Solid-free mud circulating system for drilling construction

Info

Publication number: CN214464002U
Application number: CN202120614452.4U
Authority: CN
Inventors: 王同华
Original assignee: Second Exploration Team Of Shandong Coalfield Geology Bureau
Current assignee: Second Exploration Team Of Shandong Coalfield Geology Bureau
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-10-22
Anticipated expiration: 2031-03-26

Abstract

The utility model belongs to the field of supporting facilities for drilling construction, in particular to a solid-free mud circulating system for drilling construction, which comprises a drilling and mud collecting and conveying system, a four-stage solid-liquid separation system and two mud buffer tanks, a circulating pump and a mud circulation jar, all be equipped with the buffer memory inlet on two mud buffer memory jars, add medicine mouth and buffer memory liquid outlet, be equipped with the feed liquor valve on the buffer memory inlet, be equipped with out the liquid valve on the buffer memory liquid outlet, the top of two mud buffer memory jars all is fixed with agitator motor, agitator motor connects the (mixing) shaft that stretches into mud buffer memory jar inboard bottom, the lower extreme of (mixing) shaft is fixed with the stirring leaf, be equipped with two circulation inlets and a circulation liquid outlet on the mud circulation jar, the well drilling is connected to the circulation liquid outlet, the circulating pump is all connected with two buffer memory liquid outlets to the two circulation inlets, two buffer memory inlets all with level four solid-liquid separation system union couplings. The utility model provides the high performance of no solid mud to the quality of probing construction has been improved.

Description

Solid-free mud circulating system for drilling construction

Technical Field

The utility model relates to a drilling construction is with no solid phase mud circulation system belongs to the drilling construction and uses supporting facility field.

Background

Along with the continuous extension of coal resource investigation degree of depth, resource investigation cost and construction degree of difficulty also constantly increase, and the construction risk is bigger and bigger. In the process of coal field exploration, accidents such as drill sticking, drill burying and the like are easily caused due to deep stratum burial, large loose layer thickness and the like, so that part of technicians adopt solid-free slurry to drill, and the effect is obvious in practical application.

The conventional solid-free slurry circulation system has simple processes, as shown in fig. 1, the process flow is as follows: the mud that the well drilling produced is collected conveying system through the mud and is carried to level four solid-liquid separation system and carry out cleaing away of detritus, silt, grit, then carry to mud circulation pond after the centrifugation, then supply the well drilling to continue to use, on the one hand the drilling fluid is after once circulating, its performance greatly reduced, on the other hand, the drilling fluid deposits in mud circulation pond easily to also can reduce the performance of drilling fluid to a certain extent, thereby reduced the quality of drilling construction.

SUMMERY OF THE UTILITY MODEL

According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: provided is a solid-free mud circulation system for drilling construction, which can improve the quality of drilling construction.

The solid-free mud circulating system for drilling construction comprises a drilling and mud collecting and conveying system, a four-stage solid-liquid separation system and two mud buffer tanks, a circulating pump and a mud circulation jar, all be equipped with the buffer memory inlet on two mud buffer memory jars, add medicine mouth and buffer memory liquid outlet, be equipped with the feed liquor valve on the buffer memory inlet, be equipped with the liquid valve on the buffer memory liquid outlet, the top of two mud buffer memory jars all is fixed with agitator motor, agitator motor connects the (mixing) shaft that stretches into mud buffer memory jar inboard bottom, the lower extreme of (mixing) shaft is fixed with the stirring leaf, be equipped with two circulation inlets and a circulation liquid outlet on the mud circulation jar, circulation liquid outlet and well drilling union coupling, two circulation inlets all are connected with the play liquid mouth union coupling of circulating pump, the inlet and the two buffer memory liquid outlet union couplings of circulating pump, two buffer memory inlets all with level four solid-liquid separation system union couplings.

Compared with the prior art, the utility model beneficial effect who has is:

drilling construction is with no solid phase mud circulation system, add the medicine in to mud buffer tank with the medicine mouth on the accessible mud buffer tank to the active ingredient of the no solid phase mud in the circulation is adjusted, simultaneously, set up agitating unit in the mud buffer tank, can prevent effectively that no solid phase mud active ingredient from deposiing, thereby improved the performance of the no solid phase mud in the circulation greatly, and then improved the quality of drilling construction.

Drawings

FIG. 1 is a block diagram of a conventional solids-free slurry circulation system;

FIG. 2 is a block diagram of the solid-free slurry circulation system of the present invention;

fig. 3 is a schematic structural diagram of the slurry buffer tank of the present invention;

FIG. 4 is a schematic structural view of a mud circulation tank of the present invention;

fig. 5 is a block diagram of a solid-free mud circulation system according to a preferred embodiment of the present invention.

In the figure: 1. a slurry buffer tank; 2. stirring blades; 3. a stirring shaft; 4. caching the liquid inlet; 5. a liquid inlet valve; 6. a medicine adding port; 7. caching a liquid outlet; 8. a liquid outlet valve; 9. a stirring motor; 10. a slurry circulation tank; 11. a liquid inlet is replenished; 12. a viewing port; 13. circulating the liquid inlet; 14. and circulating the liquid outlet.

Detailed Description

Embodiments of the present invention are further described below with reference to the accompanying drawings:

as shown in fig. 2 to 4, the solid-free slurry circulation system for drilling construction of the present invention comprises a drilling and slurry collecting and conveying system and a four-stage solid-liquid separation system, and further comprises two slurry buffer tanks 1, a circulating pump and a slurry circulation tank 10, wherein each of the two slurry buffer tanks 1 is provided with a buffer inlet 4, a chemical feeding port 6 and a buffer outlet 7, each of the buffer inlets 4 is provided with a liquid inlet valve 5, each of the buffer outlets 7 is provided with a liquid outlet valve 8, the top of each of the two slurry buffer tanks 1 is fixed with a stirring motor 9, the stirring motor 9 is connected with a stirring shaft 3 extending into the bottom of the inner side of the slurry buffer tank 1, the lower end of the stirring shaft 3 is fixed with a stirring blade 2, the slurry circulation tank 10 is provided with two circulation inlets 13 and a circulation outlet 14, the circulation outlet 14 is connected with a drilling pipe, and the two circulation inlets 13 are connected with a liquid outlet pipe of the circulating pump, the liquid inlet of the circulating pump is connected with the two buffer liquid outlets 7 by pipes, and the two buffer liquid inlets 4 are connected with the four-stage solid-liquid separation system by pipes.

In a preferred embodiment: the side wall of the slurry circulation tank 10 is provided with an observation port 12, so that the amount of the solid-free slurry in the slurry circulation tank 10 can be observed to remind the user to supply the solid-free slurry in time; the slurry circulation tank 10 is provided with a supply liquid inlet 11, the supply liquid inlet 11 is connected with a supply pump through a pipe, the supply pump is connected with a slurry supply tank through a pipe, the slurry supply tank is filled with the solid-free slurry, and when the slurry circulation tank 10 is not full of the solid-free slurry, the supply pump is opened to timely supply the solid-free slurry to the slurry circulation tank 10.

When in use, a buffer liquid inlet 4 of one slurry buffer tank 1 (hereinafter referred to as a first buffer tank) is opened, the solid-free slurry centrifuged by a four-stage solid-liquid separation system enters the slurry buffer tank 1 for buffer, when the solid-free slurry reaches a certain amount, the buffer liquid inlet 4 is closed, a buffer liquid inlet 4 on the other slurry buffer tank 1 (hereinafter referred to as a second buffer tank) is opened simultaneously for buffer of the solid-free slurry, at the moment, under the stirring action of a stirring blade 2 in the first buffer tank, a medicine is added into the first buffer tank through a medicine adding port 6, so that the component of the solid-free slurry in circulation is adjusted to ensure the performance of the solid-free slurry, after the adjustment is finished, a buffer liquid outlet 7 of the first buffer tank is opened, and the proportioned solid-free slurry enters a slurry circulation tank 10 for circulation under the action of a circulation pump, the first buffer tank and the second buffer tank are used for buffering the solid-free slurry, the second buffer tank is used for dispensing the solid-free slurry, and the first buffer tank and the second buffer tank are cooperated with each other to ensure the fluency of the circulating system.

Drilling construction is with no solid phase mud circulation system, add the medicine in the accessible mud buffer tank 1 by medicine mouth 6 on the accessible mud buffer tank 1 to the effective component of the no solid phase mud in the circulation is adjusted, simultaneously, has set up agitating unit in the mud buffer tank 1, can prevent effectively that no solid phase mud effective component from deposiing, thereby has improved the performance of the no solid phase mud in the circulation greatly, and then has improved the quality of drilling construction.

Claims

1. The utility model provides a drilling construction is with no solid phase mud circulation system, includes that drilling, mud collect conveying system and level four solid-liquid separation system, its characterized in that: the slurry drilling device is characterized by further comprising two slurry buffer tanks (1), a circulating pump and a slurry circulating tank (10), wherein buffer liquid inlets (4), a chemical adding port (6) and a buffer liquid outlet (7) are formed in the two slurry buffer tanks (1), liquid inlet valves (5) are arranged on the buffer liquid inlets (4), liquid outlet valves (8) are arranged on the buffer liquid outlets (7), stirring motors (9) are fixed at the tops of the two slurry buffer tanks (1), the stirring motors (9) are connected with stirring shafts (3) extending into the bottom of the inner side of the slurry buffer tanks (1), stirring blades (2) are fixed at the lower ends of the stirring shafts (3), two circulating liquid inlets (13) and one circulating liquid outlet (14) are formed in the slurry circulating tank (10), the circulating liquid outlet (14) is connected with a drilling well pipe, the two circulating liquid inlets (13) are connected with a liquid outlet pipe of the circulating pump, and a liquid inlet of the circulating pump is connected with the two buffer liquid outlets (7) through pipes, the two buffer liquid inlets (4) are connected with a four-stage solid-liquid separation system pipe.

2. The solids free mud circulation system for drilling operations as claimed in claim 1, wherein: and an observation port (12) is arranged on the side wall of the slurry circulating tank (10).

3. The solid phase free mud circulation system for drilling construction according to claim 1 or 2, wherein: the slurry circulation tank (10) is provided with a replenishment liquid inlet (11), the replenishment liquid inlet (11) is connected with a replenishment pump through a pipe, and the replenishment pump is connected with a slurry replenishment tank through a pipe.