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Topic: Drilling fluid

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	Drilling fluid composition - Patent 4374738
		A water-based drilling fluid composition is described which comprises an aqueous dispersion of a clay material containing an effective dispersing amount of a modified lignosulfonate which is obtained by graft polymerization of from 5 to 30 weight percent of an acrylic compound with the lignosulfonate.
		While the polyacrylic acid drilling fluids may have enhanced thermal stability, generally the acrylic acid or acrylate drilling fluids are not as effective as desired in the presence of contamination or in treated muds such as salt water or gyp muds.
		Drilling fluids prepared with the lignosulfonate-acrylic compound products have improved thermal stabilities over chromium lignosulfonates but are not effective in muds such as gypsum-containing muds without the addition of phosphate.
	www.freepatentsonline.com /4374738.html (3629 words)

	Oil based drilling fluid - Patent 6790811
		The selection of an oil-based drilling fluid, also known as oil-based mud, involves a careful balance of the both the good and bad characteristics of such fluids in a particular application, the type of well to be drilled and the characteristics of the oil or gas field in which the well is to be drilled.
		Fluids using traditional surfactant and emulsifier materials may require the use of solvents and other surfactant washes to penetrate the filter cake and reverse the wetability of the filter cake particles.
		The non-oleaginous fluid used in the formulation of the invert emulsion fluid of the present invention is a liquid and preferably is an aqueous liquid.
	www.freepatentsonline.com /6790811.html (8066 words)

	Drilling Fluid: Environmental Challenges
		Today the major challenge in formulating drilling fluids is to meet the increasingly demanding conditions of high temperature and pressure found in some deep wells and extended reach and horizontal wells while avoiding harm to the environment.
		Although fluids are essential for the successful drilling of an oil well, they can also be one of the messier aspects of a drilling operation.
		The degree of impact drilling fluids have on the environment depends on the type of mud used and the prevailing environmental conditions.
	www.seed.slb.com /en/scictr/watch/mud/env.htm (1101 words)

	Drilling Fluid: The Lifeblood of the Well
		Early wells were drilled for water to be used for drinking, washing, irrigation and for brine, which is used as a source of salt.
		He conceived of an assembly in which water would be pumped down the inside of a drilling rod and carry cuttings with it as it returned to the surface in the space between the drilling rod and the wall of the well bore.
		The process is similar to that used with a hand-held electric drill or auger that you might use to drill into a piece of wood.
	www.seed.slb.com /en/scictr/watch/mud (498 words)

	Drilling Fluid
		Drilling Fluid : Fluid used to lubricate the bit and convey drill cuttings to the surface with rotary drilling equipment.
		Drilling fluid is an important component in the drilling process.
		The drilling fluid is reused by pumping it into the borehole from the mud pit.
	www.mongabay.com /reference/environment/Drilling_Fluid.html (541 words)

	WAC 332-17-130: Drilling fluid.
		Sufficient drilling fluid materials to ensure well control shall be maintained in the field area readily accessible for use at all times.
		The following drilling fluid system monitoring or recording devices shall be installed and operated continuously during drilling operations, with mud, occurring below the shoe of the conductor casing:
		The temperature of the drilling fluid going into and coming out of the hole shall be monitored, read, and recorded on the driller's or mud log for a minimum of every 9 meters (30 feet) of hole drilled below the conductor casing, and
	apps.leg.wa.gov /wac/default.aspx?cite=332-17-130 (346 words)

	Drilling Fluid: mixing in the correct order
		Caution: If you are using a PHPA polymer in the fluid make sure you rinse out the mixing tank before you mix another batch of fluid.
		Recommending a drilling fluid system should be based on the ability of the fluid to achieve these critical functions and to minimize problems.
		Drilling fluids almost always require tradeoffs in treating and maintaining the properties needed to accomplish the required functions.
	www.workover.co.uk /drilling_fluid/Drilling_Systems_mixing_order.htm (578 words)

	Oilfield Glossary: Term 'drilling fluid'
		Any of a number of liquid and gaseous fluids and mixtures of fluids and solids (as solid suspensions, mixtures and emulsions of liquids, gases and solids) used in operations to drill boreholes into the earth.
		Synonymous with "drilling mud" in general usage, although some prefer to reserve the term "drilling fluid" for more sophisticated and well-defined "muds." Classifications of drilling fluids has been attempted in many ways, often producing more confusion than insight.
		One classification scheme, given here, is based only on the mud composition by singling out the component that clearly defines the function and performance of the fluid: (1) water-base, (2) non-water-base and (3) gaseous (pneumatic).
	www.glossary.oilfield.slb.com /Display.cfm?Term=drilling+fluid (162 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations
		An account of the rheology of drilling fluids is given: measurements (rig site and laboratory), rheological models, and the effect of drilling fluid composition and drilling fluid hydraulics (influence of rheology on frictional pressure losses and cuttings transport).
		The filtration (fluid loss) properties are also described with a comparison of static and dynamic filtration and an account of the effect of composition on filtration rates.
		A brief account is given of several problems associated with tire management of drilling fluids including invasion and drilling induced formation damage,solids control, environmental aspects of drilling fluid waste, and composition monitoring of drilling fluids.
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=472144 (236 words)

	Oilfield encyclopedia index glossary
		An emergency shut-off valve installed on the wellhead during drilling or testing of a well, which incorporates hydraulic pipe rams capable of closing the space around the drillpipe against very high pressures.
		Dip is the inclination from the horizontal to the surface of a geological structure.
		Increase of down-hole pressure greater than that exerted by the column of drilling fluid in a well, allowing gas to escape to the surface.
	www.anson.co.uk /oilfield_glossary.html (5958 words)

	DRILLING FLUID EQUIPMENT EQUIPMENT (Site not responding. Last check: 2007-10-09)
		Rheological properties, fluid loss characteristics, and density are perhaps three of the most important drilling fluid properties.
		These units are utilized to measure the fluid loss characteristics of drilling fluids according to API test procedures.
		The mud balance is used to accurately determine the density of drilling fluids.
	www.messina-oilchem.com /MTE/MTE-DFE.html (252 words)

	Oil and Gas Well Drilling and Servicing eTool: Drilling Fluid
		Air and foam fluids may be used in drilling wells.
		Weighting materials, primarily barite (barium sulfate), may be used to increase the density of the mud in order to equilibrate the pressure between the wellbore and formation when drilling through particularly pressurized zones.
		Fluid loss reducers include starch and organic polymers and limit the loss of drilling mud to under-pressurized or high-permeability formations.
	www.osha.gov /SLTC/etools/oilandgas/drilling/drillingfluid.html (358 words)

	Water-Based Drilling Fluid in GOM (Site not responding. Last check: 2007-10-09)
		A new water-based drilling fluid developed by MI LLC has been employed in Gulf of Mexico (GOM) wells, both deepwater and on the shelf.
		The new fluid was designed through a triple inhibition approach: shale hydration inhibition, shale dispersion inhibition and accretion inhibition.
		Drilling performance comparisons show the rate of penetration is similar to synthetic-based systems used earlier, and 60-70% higher than conventional water-based fluids used previously in the targeted blocks.
	www.pttc.org /tech_sum/ts_v82_23.htm (238 words)

	WAC 344-12-098: Drilling fluid.
		Sufficient drilling fluid materials to insure well control shall be maintained in the field area readily accessible for use at all times.
		Before pulling drill pipe, the drilling fluid shall be properly conditioned or displaced.
		The conditions herein shall not apply when drilling with air or aerated fluids.
	apps.leg.wa.gov /wac/default.aspx?cite=344-12-098 (274 words)

	RIGZONE - Principles of Drilling Fluid Control, 12th Ed.
		Covers common drilling mud tests, contamination problems and how to correct them, mud system equipment, lost circulation, and the types of drilling fluid.
		Drilling Fluid Practices in the Gulf Coast of Texas and Louisiana
		Drilling Fluid Practices in the Mid-Continent, North Texas, Oklahoma, and Kansas
	www.rigzone.com /store/product.asp?p_id=388 (192 words)

	(WO 99/21933) DRILLING AND CEMENTING THROUGH SHALLOW WATERFLOWS (Site not responding. Last check: 2007-10-09)
		(57) Drilling fluids are designed for drilling and cementing through shallow water flows and unconsolidated formations.
		Such drilling fluids utilize hollow microspheres to increase the volume of the drilling fluid without adding too much weight to the drilling fluid.
		The drilling fluid is also designed to employ an admixture of silicate, high surface area fibrous material, deformable graphite particles, and an activatable cementitious material to stabilize unconsolidated formations and form a tough filter cake that will bond with the cement casing.
	wipo.int /cgi-pct/guest/getbykey5?KEY=99/21933.990506&ELEMENT_SET=DECL (149 words)

	Fluid Management
		The Ditch Witch fluid management products are stand-alone, modular fluid systems for efficiently mixing drilling fluid additives with water and delivering the slurry to horizontal directional drilling units for drilling, backreaming, and product pullback.
		Powered by a 13 hp (9.7 kW) gasoline engine, the FM13 is a modular fluid system for efficiently mixing drilling fluid additives with water and delivering the slurry to directional drilling units for drilling, backreaming and product pullback.
		The FM50 is an electrically driven drilling fluid mixing system that features two 1000-gallon mixing tanks.
	www.ditchwitch.com /dwcom/Category/CategoryView/12 (193 words)

	DRILLING FLUID AND ADDITIVES
		Is a white odourless powder used in cementing drill holes.
		is to hold drill hole cave and seal large vugs and fissures.
		Is our new quar gum based drilling fluid.
	www.westcoastdrilling.com /Pages/Products/prd02.htm (468 words)

	Baroid Fluid Services (Site not responding. Last check: 2007-10-09)
		Baroid Fluid Services' experienced and dedicated workforce supports side-by-side involvement with operators in the fluids business.
		Baroid Fluid Services' network of field service support includes strategically located product warehouses and mixing plants, a research and development team responsible for creating new products and systems, and a workforce committed to safe practices and environmental responsibility.
		Baroid Fluid Services provides fluid systems, specialty products and services that reflect the latest advancements in technology.
	www.halliburton.com /esg/sd1315.jsp (121 words)

	drilling fluid - OneLook Dictionary Search
		Tip: Click on the first link on a line below to go directly to a page where "drilling fluid" is defined.
		noun: a mixture of clays and chemicals and water; pumped down the drill pipe to lubricate and cool the drilling bit and to flush out the cuttings and to strengthen the sides of the hole
		Phrases that include drilling fluid: drilling fluid engineer, methylglucoside drilling fluid, nonconductive drilling fluid, water-base drilling fluid, water base drilling fluid
	www.onelook.com /?w=drilling+fluid (155 words)

	GEO Drilling Fluid Inc. (Site not responding. Last check: 2007-10-09)
		GEO Drilling Fluids, Inc. is the premier mud company on the West Coast.
		We provide fluid supervision and engineering for a majority of the shallow wells being drilled in the state.
		Formerly known as Western Mud, GEO Drilling Fluids, Inc. provides materials, supervisory Mud Engineers, and the finest mud laboratory on the West Coast for the drilling industry in oil, gas and geothermal fields.
	geodf.com (127 words)

	Accolade® Drilling Fluid System
		Accolade drilling fluid is specifically formulated to comply with the stringent environmental regulations of the Gulf of Mexico, without sacrificing performance.
		Accolade fluid is formulated to comply with the new NPDES Region VI environmental regulations currently in effect.
		The Accolade fluid provides excellent suspension and hole cleaning characteristics yet has exceptionally robust and fragile gels.
	www.halliburton.com /esg/sd1345.jsp?printMe (230 words)

	Environmental Effects of Drilling Fluid Additives
		The Effects of Discharges of Drilling Fluid Additives
		The Effects of Discharges of Drilling Fluid Additives (continued)
		An old but still useful source of public domain information on drilling mud additives is a document produced a quarter of a century ago by the Industrial Marketing Research Association (Industrial Marketing Research Association (IMRA).
	www.offshore-environment.com /additives1.html (268 words)

	Anuj Gupta (Site not responding. Last check: 2007-10-09)
		Gupta, A., and Santos, H. dos (1998): “A Novel Procedure for Screening Drilling Fluid Compatiblity,” CIM 98-68, proceedings of the 49th Annual Technical meeting of the CIM Petroleum Society, Calgary, Alberta, Canada, June 8-10, 1998.
		Gupta, A., B.R. Gadiyar, and S.N. Shah (1997): “Dimensionless Correlation for Predicting the Filtration of Fracturing Fluid From Fracture Faces,” proceedings of the American Filtration and Separation Society 1997 Summer Technical Conference and Expo, Drilling and Completion Fluid Filtration: New Materials and technology, Lafayette, Louisiana, July 15-16, 1997.
		Gadiyar, B.R. and A. Gupta, (1996): “On the Effect of Mobile Crude Oil Saturation on Hydraulic Fracturing Fluid Leakoff Characteristics in High-Permeability Reservoirs,” paper no. CIM 96-81, proceedings of the 47th Annual Technical Meeting of the Petroleum Society, June10-12, 1996, Calgary, Canada.
	www.pete.lsu.edu /faculty/gupta.htm (2486 words)

	Drilling fluid pumps (Site not responding. Last check: 2007-10-09)
		DYNASET HDF drilling pump is based on a linear reversal movement of hydraulic piston, when the pump doesn’t include any rotating parts.
		such as bentonite water mix, polymer-based fluids and water mixes with foaming agents can be used.
		Content of solid fraction in drilling fluid can be up to 25% !
	www.dynaset.com /sites/HDF-ENG.htm (115 words)

	D A F O R A - DRILLING - DRILLING FLUID HIGHLIGHTS
		· Training periodically the personnel with responsibilities in the field of drilling mud.
		Our drilling job includes an environmentally acceptable, flexible and competitive drilling fluid system to protect pay zones, to reduce formation damage and to eliminate bore hole instability problems.
		Dafora has drilled successfully with dispersed fresh water mud as inhibit using specially KCl-base mud and K-POLYMER mud, according to the bore hole requirements.
	www.dafora.ro /drilling/drillingfluid.htm (241 words)

	Drilling fluid telemetry (Site not responding. Last check: 2007-10-09)
		As a result of many years of project works, the Institute has build up a considerable expertise within drilling fluid telemetry.
		Communication with the downhole equipment (valves, actuators, etc) is done by pressure code commands are modulated into fluid pressure.
		The test was follow by a successful field test.
	www.ipt.ntnu.no /~aages/ke.htm (105 words)

	Drilling Fluid and Stimulation Additives
		A Wide range of chemicals and services for drilling fluid companies and drilling contractors for improving the drilling process.
		The Aquaness Chemical Division of Baker Petrolite is involved with the world-wide development, sales and distribution of specialty chemicals - providing innovative products to the well-stimulation, drilling, and production chemical industries.
		Aquaness Chemical provides a complete line of intermediate production chemicals including demulsifiers, corrosion inhibitors, scale inhibitors, water clarifiers and reverse demulsifiers, paraffin products, surfactants, and other specialty products.
	www.bakerhughes.com /bakerpetrolite/drilling_stimulation/about.htm (120 words)

	Drilling Fluid Formulator
		What type of soil are you drilling in?
		These mixture rates are only starting points and adjustments may need to be made to get the proper results.
		It is important to note that pulling back faster than the recommended " time per pipe " does not allow adequate drilling fluid flow and mixing to occur during the backreaming process.
	www.ditchwitch.com /dwcom/OnTheJob/DitchWitchTools/DFF/index.jsp (112 words)

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