مباحث تخصصی و فوق تخصصی سیال حفاری

[nima.mohamadin]

Air, Gas, and Unstable Foam Drilling

تاريخچه:
شروع بكارگيري روش حفاري با هوا در ايران ازسال 1970 وبوسيله شركتهاي خارجي در منطقه گنكان بوده است اداره حفاري با هوابا تجهيزات باقيمانده از شركتهاي خارجي درسال 1359شروع بكار نمودودر سال 1370اولين سري از تجهيزات خريداري شده به ناوگان قديمي افزوده گرديد. در سال 1380با دريافت 9كمپرسورپيچشي عمليات حفاري با هوارا در منطقه تابناك آغازنمود وحفاري در مناطق سخت با استفاده از اين تجهيزات وكارشناسان مجرب آنچنان ساده گرديد كه ركوردهاي بياد ماندني در پروژه تابناك بجا گذاشته شد بطوري كه سرعت حفاري در بعضي از مراحل به600 متر درشبانه روزرسيد.هم اكنون با ارتقاء تجهيزات وآموزش نيروي انساني اين اداره توانسته است باعث رضايتمندي صددرصد واحدهاي متقاضي شود.




حفاري با هوا:
اين بخش با استفاده از تجهيزات مناسب و كارشناسان مجرب و متخصص متولي حفاري در لايه هاي ضعيف و با شكستگي زياد مي باشد كه امكان حفاري آنها با روش هاي معمولي وجود ندارد و ضرورت بكارگيري هوا به عنوان سيال حفاري وجود دارد اين روش حفاري تقريبا تنها وسيله براي گذر از اين لايه است . برخي از مزاياي حفاري با هوا عبارتند از :

1-افزايش سرعت حفاري و كاهش زمان حفاري

2-كاهش تخريب لايه

3-كارايي بهتر مته و افزايش عمر مته

4-كنترل گمشدگي گل

5-كاهش هزينه حفاري

خدمات حفاري با هوا:

1-حفاري با هواي خشك-
2-حفاري با هواي مرطوب 3-حفاري با گل فشرده 4-حفاري با گل هوا زده 5-عمليات توپك راني 6-عمليات فرازآوري با هوا 7-تامين هواي اوليه بوسيله كمپرسور در دستگاه حفاري
8-تامين كلاهك دوار جهت حفاري چاههاي گازي
9-تست خطوط لوله با هوا

 

[javad644]

سلام
جواد هستم
کتاب حفاری در سازندهای شیلی رو نیاز دارم اگه کسی داره ممنون میشم.

 

[Mahdad Mahmudi]

سلام به مهندسین گرامی!
اگه کسی لطف کنه راجع به DIF با Drill in Fluid اطلاعات بده یا بگه معادل فارسیش چیه تا بتونم سرچ کنم خیلی ممنون میشم. تو صفحه های نت برخورد کردم باهاش و تو تکست های انگلیسی حفاری نمیتونم پیداش کنم متاسفانه رشته نفت هم نیستم با تکست های فارسی آشنایی ندارم. پیشاپیش ممنون از کمکتون.

 

[hormozd]

انواع افزودنی را در زیر واستون می زارم (منبع هالی برتون) :

[h=1]Fluid Additives[/h] Drilling fluid additives are specialty products that serve a specific need - and Halliburton Baroid is known for high-quality additives that deliver the consistent performance mandated by environmental regulations. Our commitment to research and development helps ensure that our products and processes reflect the latest advancements in fluid additive technology.

 

[hormozd]

Addetives 1

Addetives 1

[h=1]Alkalinity Control Agents[/h] Control of the pH of various drilling muds is easy with alkalinity control agents available through Halliburton. Our agents help control the pH in water-based, oil-based, and synthetic-based muds using soda ash, lime, potassium hydroxide, Ph-6, caustic soda, or bicarbonate of soda.
For information on all related products, see the links in the right column


[h=1]Borehole, Shale Stabilizers[/h] Drilling practices and the physical & chemical properties of drilling fluids can either enhance or erode borehole stability. Our borehole stabilizers serve as "preventive medicines" that help operators avoid the difficult and expensive tasks associated with remediating an unstable formation.
For data sheets, products and related information please refer to the links at the right of this page


[h=1]Corrosion Control[/h] Prevent costly corrosion damages
Preventative treatment can help avoid the expense of corrosion-induced failures of drillstrings or casings. We offer proven corrosion-control treatments that mitigate the corrosive qualities of drilling and completion fluids and other factors affecting the downhole environment.
Product offerings for a variety of corrosion types and applications
Whether you encounter corrosion due to hydrogen sulfide, oxygen, or carbon dioxide, our scavengers are engineered to tackle all types of corrosion. Baroid offers solutions that can be used directly in the fluid system without adversely affecting drilling fluids. Our corrosion control product line also offers products for use in water-based, oil-based, or aerated drilling fluids.
Effective products that lower your costs
Baroid’s corrosion control solutions reduce corrosion rates and help lower rig equipment, drill pipe maintenance and replacement costs. We offer corrosion control additives that are safe and easy to use.

[h=1]Emulsifiers[/h] Halliburton provides emulsifiers that effectively promote stability by reducing the interfacial tension between water and oil. Emulsion fluids are offered in two varieties: either oil-in-water, categorized as direct or water-based; or water-in-oil, known as invert emulsion.
For data sheets, products and related information please refer to the links at the right of this page

 

[hormozd]

Addetive 2

Addetive 2

[h=1]Filtrate Control Agents[/h] Halliburton produces polymer and non-polymer fluids that serve as filtrate control agents to manage filtration rates and reduce filter cake permeability. These effective agents control the four basic mechanisms that affect filtration, including bridging, bonding, deflocculation, and viscosity.
For data sheets, products and related information please refer to the links at the right of this page.




[h=1]Lost Circulation Materials[/h] Halliburton knows how to keep costs associated with lost circulation from spinning out of control. Our solutions give operators effective ways to respond to complete or partial lost circulation prompted by hydrostatic or annular pressure loss from natural or induced causes.
Join us for our next Knowledge Summit
The Baroid Knowledge Summit series is an educational workshop where attendees learn about a specific technical challenge. The events listed below are focused on Lost Circulation Materials.
To view our full schedule of Knowledge Summits, please visit our Educational Events page.

Date	Location	Registration
05/27/2014	Tanzania	Contact Baroid
06/03/2014	Angola	Contact Baroid
09/10/2014	Cairo, Egypt	Contact Baroid
09/24/2014	Doha, Qatar	Contact Baroid

[h=1]Lubricants[/h] Friction can be controlled with Halliburton's liquid lubricants that reduce the coefficient of friction between pipe and wellbore. Our lubricants include polymers that effectively adhere to pipe surfaces and lessen adhesion between pipe and mud solids.
For data sheets, products and related information please refer to the links at the right of this page.

 

[hormozd]

Addetive 3

Addetive 3

[h=1]ROP Enhancers[/h] Rate of penetration (ROP) is a key metric of drilling performance. Halliburton offers enhancers that minimize friction and reduce bit bailing, clay sticking and other downhole aggravations that can quickly turn a good ROP into a potential problem.
For information on all related products, see the links in the right column.

[h=1]Spotting Fluids[/h] Operators know they are working against time when differential sticking stops their drill pipe. By applying our spotting fluids within six hours of an occurrence, the drill team stands a fighting chance of seeing the fluids penetrate the filter cake to break it up - thereby freeing the pipe.
For information on all related products, see the links in the right column.





[h=1]Sweeping Agents[/h] Halliburton offers two viscosities of sweeping agents to help operators effectively remove cuttings from the wellbore. Turbulence associated with low viscosity sweeps stirs the cuttings bed, and high viscosity fluids "sweep" the solids to the surface.
For information on all related products, see the links in the right column.

 

[hormozd]

Addetive 4

Addetive 4

[h=1]Thinners, Deflocculants[/h] Halliburton offers thinners and deflocculants that help maintain rheological properties amid hostile environments. Thinning agents help reduce viscosity or prevent flocculation, and deflocculants are typically low-molecular weight anionic polymers that neutralize positive charges.
For information on all related products, see the links in the right column.

	THERMA-FLOW 500™ Low Molecular Weight Dispersant
	A low molecular weight, environmentally friendly dispersant

[h=1]Viscosifiers, Suspending Agents[/h] Operators can adjust the properties of their fluids systems by employing our viscosifiers and suspending agents. These products let drilling teams respond to downhole conditions by altering rheological properties of their drilling fluids or enhancing the low-shear viscosities being employed.

	TAU-MOD™ Viscosifying/Suspension Agent
	Amorphous/fibrous material used to impart viscosity and suspension properties to oil-based drilling fluids

[h=1]Weighting Agents[/h] Drilling mud density can be adjusted by adding weighting agents made by Halliburton. Composed of finely ground solid material, these agents offer a high specific gravity.
For information on all related products, see the links in the right column.

	Baroid® 41 Weighting Agent
	This weighting agent is ground barium sulfate.