Fluid drilling and soil conditioning using hydrophilic polymers

  • 14 Pages
  • 4.39 MB
  • English
U.S. Dept. of Agriculture, National Agricultural Library , Beltsville, Md
Drilling muds -- Bibliography., Soil conditioners -- Bibliogr
Statementprepared by Kerryn A. Brandt.
SeriesSpecial reference briefs -- NAL-SRB. 88-07.
ContributionsNational Agricultural Library (U.S.)
The Physical Object
Pagination14 p. ;
ID Numbers
Open LibraryOL17673830M

Get this from a library. Fluid drilling and soil conditioning using hydrophilic polymers. [Kerryn A Brandt; National Agricultural Library (U.S.)]. At these polymer rates the amounts of water use efficiency for corn were and times greater than those of control in the loamy sand and sandy clay loam soils, respectively.

Thus, the use of hydrophilic polymer in soils especially in the sandy soils increases soil water holding capacity, yield, and water use efficiency of by:   Using diverse technological approaches, many types of delivery devices have been used to supply plant nutrients at a controlled rate in the soil.

One new approach is the use of hydrophilic polymers as carriers of plant nutrients. These polymers may be generally classified as 1) natural polymers derived from polysaccharides, 2) semi-synthetic polymers (primarily cellulose derivatives), Cited by: This book presents how to apply fluid mechanics on drilling fluid related challenges and explains the related physics involved and the different engineering approaches.

Mud has many functions, the single most important one is to remove the cuttings a) away from under the bit and b) transport them from the bottom to the surface/5(17).

Drilling fluid engineering. Book boon. In this study, the addition of hydrophilic Gilsonite nanoparticles (HGNs) to water-based drilling mud was investigated, and its effects upon the well. Soil water diffusivity as a function of soil water content was also found to decrease substantially with an increase in the hydrophilic polymer soil conditioner (El-Shafei et al., ).

The saturated hydraulic conductivity decreased considerably with an increase in the concentration of hydrophilic polymer soil conditioner in the soil (El.

To develop cost-effective techniques that contribute to phytostabilization of severely metal-contaminated soils is a necessary task in environmental research. Hydrophilic insoluble polymers have been used for some time in diapers and other hygienic products and to increase the water-holding capacity of coarse-textured soils.

These polymers contain groups, such as carboxyl groups, that are. cost. More than 80% of wells drilled using water based drilling fluids[4, 5]. Water based fluids can be classified into three categories that are: inhibitive, non-inhibitive and polymers fluids[6].

All drilling operations depend directly on the properties of the drilling fluids [2]. If the drilling. Typically, superabsorbent Fluid drilling and soil conditioning using hydrophilic polymers book (SH) are three-dimensional matrix (3D) constituted by linear (or branched) hydrophilic polymers that are chemical of physical crosslinked, with the ability to absorb large quantities (swelling ratio (SR) > ) of water or biological fluids.

Further, SH can keep their network stable even in the swollen state. Effect of soil–conditioning polymers on the mechanical properties of sand. Soviet Soil Science 13(4): Hydrophilic Polymers – Effects and Uses in the Landscape.

Daniel Peterson. Summary. Hydrogels have the potential to have a large number of benefits on the landscape. They have proven to be an aid in decreasing erosion, thus. Application of Hydroxyethyl cellulose in Drilling Fluid.

The drilling fluid with the addition of Hydroxyethyl cellulose is commonly used in hardrock drilling and drilling under other special circumstances such as in the shale layers with leakage control of the circulating water, excessive water loss, abnormal pressure, or. Farmers first began to use these polymers as a way to help soil retain more water.

In the s, they started appearing in disposable hygiene products like diapers. Today, they’re being used in pharmaceuticals, medical devices, cosmetics, and even to remove metal contaminants from soil.

By studying the composition and performance of drilling fluid and its control and adjustment, high quality, fast, safe, and economic drilling can be achieved.

In this chapter, types, structures, function mechanisms, performances, and relevant control and adjustment methods of various drilling fluid treatment agents are introduced. Electronic library. Download books free.

Finding books | B–OK. Download books for free. Find books. Water-Based Chemicals and Technology for Drilling, Completion, and Workover Fluids effectively delivers all the background and infrastructure needed for an oil and gas engineer to utilize more water-based products that benefit the whole spectrum of the well’s life cycle.

Helping to mitigate critical well issues such as formation damage, fluid. The drilling of clay-rich formations, such as shale, is an extremely demanding technical and technological process. Shale consists of mixed clay minerals in different ratios and in contact with water from drilling mud.

It tends to swell and cause different wellbore instability problems. Usually, the petroleum industry uses various types of salt and/or polymers as shale hydration inhibitors. [Show full abstract] the filter loss of fresh water drilling fluid from 45 mL to mL, and the filter loss of polymer sulfonate drilling fluid from 12 mL to 4 mL.

FPS has particle sizes that. ¾ Mud conditioning equipment Function of drilling mud Cool bit and its teeth ¾ For power law fluid, slip velocity is: / () ¾ Polymers: ¾ Large molecules made up of many repeated small units called monomers ¾ Used for filtration control, viscosity modification, flocculation.

Hydrophilic vs. Hydrophobic fluids Fluids for ice drilling can be broadly classified as hydrophilic (“water-loving”) or hydrophobic (“water-fearing”). Anti-freeze solutions consisting of ethanol + water, ethylene glycol + water, etc., are all intrinsically hydrophilic.

Hydrophilic polymers contain polar or charged functional groups, rendering them soluble in water.

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Within this section, most hydrophilic polymers are grouped by the chemistry of their structure. For example, acrylics include acrylic acid, acrylamide, and maleic anhydride polymers and copolymers. Drilling Fluid Life Cycle.

Drilling fluid design and maintenance are iterative processes affected by surface and downhole conditions. These conditions change as the well is drilled through deeper formations and encounters gradual increases in tem-perature and pressure and the mud undergoes alterations in chemistry brought about by different types of rock and formation fluids (above).

Hydraulic fracturing fluids: A wide variety of chemical additives are used in hydraulic fracturing fluids. They include: dilute acids, biocides, breakers, corrosion inhibitors, crosslinkers, friction reducers, gels, potassium chloride, oxygen scavengers, pH adjusting agents, scale inhibitors, and surfactants.

The following is a basic overview of the chemistry of four drilling fluid components: the make-up water, bentonite, polymers and surfactants. Although the make-up water comprises the greatest percentage of a drilling fluid — as much as 97 percent by weight in the neat drilling fluid — the chemistry is often overlooked.

Liquid Polymer – An environmentally safe, fast mixing drilling fluid • Builds viscosity in mud rotary drilling • Excellent clay and shale inhibitor, works well in both fresh and salt water • Allows faster drilling, reduces well development time • Prevents bit balling, lowers fluid loss, cost efficient, can be broken down.

Co-exploitation of coal measure gases (coalbed gas, shale gas, and tight sandstone gas) puts a higher requirement on drilling fluids. Conventional drilling fluids have disadvantages, such as causing problems of borehole collapse, formation damage, and water blockage. This paper proposes a set of high inhibitive and low-damage drilling fluids that function by electrical inhibition and neutral.

Bio-Bore: A polymer-based system that provides a clay-free, biodegradable drilling fluid in situations where the use of clay-based fluids is restricted.

Diamond Seal: A water-swellable, not water-soluble, % crystalline synthetic polymer. Global Drilling Fluids and chemicals is the leading Manufacturer of Specialty Drilling Polymers.

Drilling Polymer manufactured by our company are sold in over 30 Countries worldwide. Global Drilling Fluids and Chemicals Stands Guarantee of Performance of all Products manufactured at our Manufacturing Facilities.

These fluids can be inhibitive or non-inhibitive depending upon whether an inhibitive cation is used. Polymers can be used to viscosify fluids, control filtration properties, deflocculate solids, or encapsulate solids.

The thermal stability of polymer systems can range upwards to °F. In spite of their diversity, polymer fluids have limitations. Design of Chemically Balanced Polymer Drilling Fluid Leads to a Polymer Drilling Fluid Leads to a Reduction in Clay Destabilization.

Summary. Many water-sensitive shale formations destabilize when contacted by a drilling fluid. This can lead to hole sloughing, stuck.

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In offshore drilling, cost and logistics dictate using seawater as the preferred makeup fluid in top-hole drilling, and perhaps down to intermediate pipe setting. With seawater salinity and salt makeup varying throughout the world, the trend has been to use more brine fluids to formulate the mud.

The five main tasks of a drilling fluid: About this book: Mud circulation loop and its components: The mud loop and solids control: The mud pump: Drilling fluid viscosity control: Clay chemistry: Polymer chemistry: Rheology of drilling fluids: Filtration control: Additives: Hydraulic friction in the circulating system: Head loss: Laminar flow.

Polymer fluids contain polymers which greatly diversify their application. These fluids contain polymers to viscosify, polymers to control filtration, polymers to deflocculate, polymers to provide high-temperature stabilization, etc.

Polymer fluids generally contain only minor amounts of bentonite to build viscosity.

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Primary viscosification is provided by high molecular weight polymers .QUAD POWER™ polymer drilling products are a line of super concentrated drilling fluids to be used for short distance/ small diameter HDD bores.

This easy to use, color coded polymer drilling system allows utility contractors to quickly and efficiently drill through various soil types. Just add the appropriate product and drill!