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Deep purification treatment device and purification treatment method for drilling fluid separation liquid

A technology for deep purification and treatment equipment, which is applied in the direction of chemical instruments and methods, filtration treatment, mining wastewater treatment, etc. It can solve the problems that the drilling fluid cannot be directly reused and the separation waste fluid cannot be directly recycled, and achieves a compact structure, Small footprint, safe and reliable use

Pending Publication Date: 2019-09-20
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing drilling fluid separation fluid cannot be directly reused to prepare drilling fluid because it contains a large amount of high-valent metal ions, and to provide a deep purification treatment equipment and purification treatment method for the drilling fluid separation fluid, so as to solve the problem of separating waste liquid Inability to directly recycle and other issues, realize the integration of processing devices and minimize the floor area, while ensuring the processing effect of the process

Method used

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  • Deep purification treatment device and purification treatment method for drilling fluid separation liquid
  • Deep purification treatment device and purification treatment method for drilling fluid separation liquid

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, a deep purification treatment equipment for drilling fluid separation fluid, including a drug-dissolving pool, a primary reaction pool 5, a secondary reaction pool 6, a sedimentation pool 7, an intermediate water tank 8, a clean water tank 10, a quartz sand filter 12, a reverse osmosis Device 15, the drug-dissolving pool is respectively connected with the primary reaction pool 5, the secondary reaction pool 6, and the clean water tank 10 through the dispensing pipeline, and the water inlet of the primary reaction pool 5 is connected with an external raw water tank through a raw water inlet pipe 32, and the primary The water outlet of reaction tank 5 is communicated with the water inlet of secondary reaction tank 6, sedimentation tank 7 and intermediate water tank 8 successively, and the water outlet of described intermediate water tank 8 is communicated with the water inlet of quartz sand filter 12 by connecting water pipe one 34 , the outlet ...

Embodiment 2

[0039] On the basis of Embodiment 1, further, the water outlet of the clean water tank 10 is also communicated with the water inlet of the quartz sand filter 12 through the connecting water pipe 4 37, and the filtering backwash pump 29 is installed on the connecting water pipe 4 37 .

[0040] Further, the water outlet of the clean water tank 10 is also communicated with the water inlet of the reverse osmosis device 15 through the connecting water pipe 5 38, and the reverse osmosis flushing pump 14 is installed on the connecting water pipe 5 38 . A water inlet booster pump 17 is installed on the raw water inlet pipe 32 , a filter booster pump 28 is installed on the first connecting water pipe 34 , and a reverse osmosis booster pump 11 is installed on the second connecting water pipe 35 .

[0041] Further, the drug-dissolving pool includes a first drug-dissolving pool 1, a second drug-dissolving pool 2, a third drug-dissolving pool 3, a fourth drug-dissolving pool 4 and a fifth dr...

Embodiment 3

[0044] On the basis of the above embodiments, further, the dispensing pipeline 2 between the first drug dissolving pool 1, the third drug dissolving pool 3 and the fourth drug dissolving pool 4 and the first dosing pump 26 is provided with Y-type filter one and front check ball valve one, the dispensing pipeline two between the first dosing pump 26 and the secondary reaction pool 6 is provided with rear check ball valve one; The dispensing pipeline between the dosing pump 27 is provided with a Y-type filter 2 and the front check ball valve 2, and the dispensing pipeline 1 between the second dosing pump 27 and the primary reaction tank 5 is provided with a rear check ball valve 2 The dispensing pipeline three between the fifth drug-dissolving pool 9 and the third dosing pump 30 is provided with a Y-type filter three and a front check ball valve three, and the dispensing pipeline between the third dosing pump 30 and the clear water tank 10 The third is provided with a rear check...

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Abstract

The invention provides a deep purification treatment device and a purification treatment method for drilling fluid separation liquid. The device comprises a reagent dissolving tank, a primary reaction tank, a secondary reaction tank, a sedimentation tank, an intermediate water tank, a clear water tank, a quartz sand filter and a reverse osmosis device. The reagent dissolving tank is connected with the primary reaction tank, the secondary reaction tank and the clear water tank through reagent pipelines respectively; a water inlet of the primary reaction tank is connected with an external raw water tank; a water outlet of the primary reaction tank is sequentially communicated with water inlets of the secondary reaction tank, the sedimentation tank and the middle water tank; a water outlet of the middle water tank is communicated with a water inlet of the quartz sand filter; an outlet of the quartz sand filter is divided into three paths, one path is communicated with a water inlet of the clear water tank, the second path is communicated with a water inlet of the reverse osmosis device, and the third path is connected with a drainage pipe; a water outlet of the reverse osmosis device is communicated with a water inlet of a clean water tank which is connected with a drain pipe. The device and the method can solve the problem that the separated waste liquid cannot be directly recycled. The device has the advantages of simple process flow, small occupied area, high automation degree and the like.

Description

technical field [0001] The invention relates to the technical field of drilling waste treatment and reuse, in particular to a drilling fluid separation liquid deep purification treatment equipment and a purification treatment method. Background technique [0002] Drilling fluid separation fluid refers to the liquid phase product that is separated from solid and liquid by centrifuge or filter press after oil and gas field drilling fluid is broken and destabilized. One-third of the waste drilling fluid produced by drilling in my country's oil and gas fields is discharged into the natural environment every year, causing varying degrees of pollution to the environment and formations. At present, the main disposal methods for drilling fluid in my country include direct discharge, solidification, solid-liquid separation, backfilling and recycling. Most domestic oilfields store the waste drilling fluid generated during the drilling production process in ponds, and after the complet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F103/10
CPCC02F9/00C02F1/66C02F1/52C02F1/001C02F1/441C02F2103/10Y02A20/131
Inventor 黎金明张建卿陈在君张小平赵福荣张建斌郑玉辉陈磊王勇强郭康周强谭欢王磊王国庆张潮董宏伟郝超陈龙蒋振伟张长庚
Owner BC P INC CHINA NAT PETROLEUM CORP