Baker Hughes INTEQ, Baker Oil Tool,. Hughes . Baker Hughes Drilling Fluids division, many special chemicals and deals especially with the products of the INTEQ Division. .. time-consuming manual work are relatively expensive. Baker Hughes INTEQ Drilling Engineering Workbook A Distributed Learning B / December Drilling Fluids Workbook H Rev. .. and paragraph references and the following information is included in your transmittal. Department Drilling Engineering Workbook P/N H Manual Date. Geothermal drilling fluids commonly used include water based mud, water only .. dependent on temperature (Baker Hughes INTEQ, ). Drilling fluid.
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Ch6 – Drilling Fluids Documents. However, latex is generally considered to be a metastable system.
Water-based drilling fluids using latex additives – Baker Hughes Incorporated
The essential components of the water-based drilling fluids of this invention are the polymer latex and water, which makes up the bulk of the fluid. However, circulation was maintained 5 hours instead of one as before. Mannual emulsion well servicing fluids. Inhibiting drilling fluid pressure invasion into the wall of a borehole is one of the most important factors in maintaining wellbore stability.
Solid particles are suspended in oil and water or brine is emulsified in the oil and therefore the oil is the continuous phase.
Baker Hughes INTEQ: Drilling Engineering Workbook
It is desired that the sodium aluminate or other precipitating agent be in a metastable form in the mud, which means that it is in suspension or solution, but precipitates out upon the borehole wall. Pore Pressure Transmission Testing Borehole stability effects of the experimental latex system were evaluated with the pore pressure transmission PPT tester previously described.
Rather inetq concern for formation stability, the loss of drilling fluid and resulting higher production costs are the more commonly the main concern. Shale Inhibition Test The shale inhibition characteristics were determined by shale dispersion tests that included static wafer test, and pore pressure PPT tests.
The differential pressure consolidates the latex deposit into a solid seal.
reffrence Still another object of the invention is to provide a composition and method that increase huvhes pressure blockage, reliability, magnitude, and pore size that can be blocked with water-based fluids for stabilizing shale formations. Eand use of the sodium aluminate with salt only comparative Ex. The method of claim 8 where in providing the water-based drilling fluid, the polymer latex is present in the drilling fluid in an amount of from about 0.
The first of these polymers was tested on the PPT test in a fluid with other products.
Shale stabilizers are typically added to the mud to inhibit these phenomena and to stabilize the shale from being affected by the mud. The fluid of Example 1 was used. Practical Drilling Fluids Documents. Non Aqueous Drilling Fluids Documents. Aluminum Complex Although a synergistic effect of ALPLEX with latex on stabilizing shales manuap confirmed by PPT test results, this system is fragile and very sensitive to increasing salt concentration and temperature.
Filming amine corrosion inhibitor baer solids free fluids; controls corrosion, scavenges oxygen and inhibits bacteria. Slowly add 18 ml tested latex sample into the solution and adjust the Prince Castle mixer to rpm with Variac and tachometer.
Furthermore, due to the wide temperature range between its fluidds transition temperature T g and melting point T mthe particles of EXP remain deformable and capable of plugging shale micro-fractures at most application temperatures.
Introduction to Drilling Fluids Documents. Click for automatic bibliography generation. The method of claim 1 where in providing the water-based drilling fluid, the fluid further comprises a precipitating agent selected from the group consisting of silicates, aluminum complexes, and mixtures thereof.
The proportion of the precipitating agent in the drilling mud, based on the total amount of the fluid may range from about 0.
baker hughes inteq drilling fluids reference manual
If the surfactant is present, the surfactant treated latex wets the surface strongly and accumulates to form a film or coating that seals fractures and defects in the shale. Although a synergistic effect of ALPLEX with latex on stabilizing shales was confirmed by PPT test results, this system is fragile and very sensitive to increasing salt concentration and temperature. A method of inhibiting borehole wall invasion when drilling with a water-based drilling fluid in a subterranean formation, the method comprising: Photomicrographs of the plug face showed latex accumulation along microfractures in the shale.
The piston on the low pressure side is filled with liquid, and blocked, so an increase in liquid pressure is measured rather than flow. The salt is optional because the invention will perform without it, that is, using fresh water. Optimizing high performance water base mud design is commonly at the forefront of many drilling fluid service and oil operating companies’ needs due to the various limitations of invert emulsion fluids.
The drilling fluid is expected to carry cuttings up from beneath the bit, transport them up the annulus, and allow their separation at the surface while at the same time the rotary bit is cooled and cleaned.
The outside of the sleeve is pressured to make a good seal. Additional evaluations were performed only for those samples having passed the above screening test. The composition identities are given on FIG.
This can simplify the formulation and transportation of the drilling fluid additives to production sites. The reason may relate to the co-precipitation behavior of EXP and EXP as discussed previous, without being limited to any particular explanation.
The plug is oriented with the bedding planes in the parallel or high permeability direction. Clearly, for successful applications of latex in drilling fluids, latex stability in high salt environments and at elevated temperatures must be improved. Three experimental additives were fluods for the inventive fluids: In a more preferred embodiment, the proportions range from about 1 to 8 vol. Methods of displacing liquids through pipes.