Polyamine drilling fluid system - sloilfield.com · 2 HPWBM—Technology High performance polyamine drilling fluid system Technical characteristics： As an alternative to oil based

Qingdao Lead Oilfield Solutions Co., LtdChemical and more

HPWBM—TechnologyHigh performance polyamine drilling fluid system

www.sloilfield.com 2


Technical characteristics：

As an alternative to oil based mud, the environment pollution is small compared with oil based mud;

Effective inhibition to hydration expansion and shale dispersion; Effective wellbore stability, drilling cuttings package and well bore cleaning ability ； To prevent mud pack, tripping smoothly ； Effectively improve the drilling speed, help to protect the reservoir ； The treatment agent is accurate, efficient, and few varieties.

System composition ：

Polyamine shale inhibitor High efficiency emulsion coated inhibitor Aluminum salt blocking anti collapse agent High efficiency lubricant Acid soluble polymer filtrate reducer, modified natural polymer

Qingdao Lead Oilfield Solutions Co., Ltd



＊ Polyamine inhibitorA water soluble polymer amine shale inhibitor, the dissociate amino groups with the samesize of clay interlayer spacing, it can be embedded into the crystal layer with excellentinhibition of clay hydration and swelling effect, it is conducive to maintaining wellborestability, inhibition of drilling mud. Its function time is long, the effect is remarkable, theenvironmental protection performance is good.Features： Inhibition of shale slurry making, expansion, dispersion performance significantly; With a small amount, it can be recycled, the working effect with a long time; Good compatibility with drilling fluid system .

＊ High efficiency emulsion coated inhibitorThe oil in water type linear polymer has good water solubility, strong coating ability,inhibition of drilling, mud flow, water regulation to protect wall and prevent boreholecollapse performance.Features： Fast water soluble and dispersed, it can be directly added into the mud, not fish ； linear molecular chain can be effectively covered by drilling bits, thus inhibiting the

hydration of the shale; Excellent shear and dilution properties.




＊ Acid soluble polymer fluid loss additiveHigh temperature fluid loss reducing agent synthesized by AMPS as main raw material. Hightemperature of 200 DEG C, suitable for deep and ultra deep well drilling; especially suitable forfresh water drilling fluid system, in fresh water drilling fluid system it can anti the temperature to250 DEG C.Features：Suitable for different water quality, in fresh water, salt water, seawater drilling fluid it can effectively control the filter loss, filter cake quality is good;

Anti temperature to 180 oC, it can be applied to deep, ultra deep well drilling;Compatibility is good, it can cooperate with various treatment agent, suitable for all kinds ofwater base drilling fluid system.

＊ High temperature and high density lubricantAs a light yellow free flowing liquid, it is a modified low fluorescence and high efficiency lubricant,anti temperature 180 degrees, salt to saturation, can be applied to high density drilling fluidsystem. With high lubrication efficiency, low foaming rate, low fluorescence grade.Features ：High lubrication efficiency ；The level of fluorescence is low, it can be used for wells ；Without exception to the rheological property of drilling fluid and the loss of theperformance of the wall.




Products Adding（Kg/m3）

WaterBentonite clay 2 0 ‐ 4 0Na2CO3 2NaOH 2High efficiency package inhibitor 2 ‐ 3Modified natural polymer fluid loss additive 5 ‐ 8

Polyamine inhibitor 1 0 ‐ 1 5Aluminum salt blocking anti collapse agent 1 5 ‐ 2 0

High temperature and high density lubricant 5 ‐ 1 0

Acid soluble particles 3 0 ‐ 5 0Acid soluble polymer fluid loss additive 5 ‐ 1 0

Barite




Rheological property

ρ g/cm3 Test conditions AVmPa.s

PVmPa.s

YPPa

GelPa/Pa

FLmL

FLHTHPmL

1.30 Room temperature 38 27 11 3/6 2.1 -

1.30 120℃×16h 36 26 10 3/5 2.4 12.4

1.30 150℃×16h 32 23 9 2/5 2.6 12.8

Lubrication coefficient (Room temperature): 0.07After hot rolling: 0.08The data from the above table shows that the high performance poly amine water baseddrilling fluid system has good rheology and low temperature and high pressure loss, which canmeet the requirements of drilling.




Inhibition ‐ rolling recoveryThe performance of high performance water based drilling fluid in laboratory tests showsthat the shale recovery rate is very close to the performance of oil based mud, and therecovery rate of the two shale is much higher than that of oil base mud.




Oil retention evaluation——Recovery value of anti permeability

Items CoreGas

permeability(10-3μm2)

Oil permeability(10-3μm2)

Anti permeability(10-3μm2)

Permeability recovery value, %

High performance water‐based drilling fluid SN-140 322.66 42.25 39.2 92.78

Return performance test

Orifice diameter，μm

Permeability,mD

Breakthrough pressure，PSI

Return balance pressure，PSI

3 400 2.85 1.10

10 2000 2.34 0.78

20 5000 2.14 0.64


Documents

Polyamine drilling fluid system - sloilfield.com · 2 HPWBM—Technology High performance polyamine drilling fluid system Technical characteristics： As an alternative to oil based