Month: November 2017

With oil&gas drilling work going,more sludge come out,and many company want to solve it,and contact GN,we are trying to supply suitable product and solution

Background:

The oil & gas demand increased year by year. Many countries increased offshore/onshore oil and gas development efforts, while a large number of mining also caused serious environmental become bad, to keep balance of development and environmental. In the development process, oil-based mud, hydraulic fracturing and other development methods will cause high pollution.the company and local government should treat it seriously

 

Solid hazard:

It will take up large area of valuable land if the sludge is bulky and directly discharged without treatment.also pollutes the surrounding soil/water/air. If stored in the open air, the sludge will directly pollute the land and the crude oil will cause damaging pollution to the surrounding vegetation.not adviced,and the quantity of solid part is not small

Gas hazards:

Sludge is associated with the formation of foul gases and can contaminate the surrounding soil, water and air. In the event of a fire, open-air stored sludge will burn with toxic gases such as sulfur and cause serious air pollution, The physical health poses a serious threat.the damage gas will effect cillage and city directly if didn’t do prepare

Other hazards:

The mud contains a large number of pathogens, parasites (eggs), copper, zinc, chromium, mercury and other heavy metals, salts and PCBs, dioxins, radionuclides and other toxic and harmful substances is difficult to degradation, serious pollution and the surrounding damage to the environment.also the damage’s continue time is very long,

As solids control equipment manufacturer,GN will try supply suitable product to keep environment better

GN focus on manage drilling fluid for rig

Contamination of drilling fluids with drilled cuttings is an unavoidable consequence of successful drilling operations. If the drilling fluid does not carry cuttings and cavings to the surface, the rig either is not “making hole” or soon will be stuck in the hole it is making. The drill cuttings that are separated from the drilling fluid on the surface by the soldis control equipment and some quantity of unrecoverable or economically unwanted drilling fluid are a major source of drilling waste. Drilled and formation solids that are sized smaller than can be removed by the solids control equipment are often reported as drill solids. Some quantitiy of drill solids will accumulate in the drilling fluid and must be removed by the solids control equipment or reduced in concentration by dilution.

 

Mainy drilling fluid is WBFs and OBFs

 

WBFs:Water-based fluids

Water-based fluids (WBFs) are used to drill approximately 80% of all wells. The base fluid may be fresh water, seawater, brine, saturated brine, or a formate brine. The type of fluid selected depends on anticipated well conditions or on the specific interval of the well being drilled. For example, the surface interval typically is drilled with a low-density water- or seawater-based mud that contains few commercial additives. These systems incorporate natural clays in the course of the drilling operation. Some commercial bentonite or attapulgite also may be added to aid in fluid-loss control and to enhance hole-cleaning effectiveness. After surface casing is set and cemented, the operator often continues drilling with a WBF unless well conditions require displacing to an oil- or synthetic-based system.

Oil-based systems were developed and introduced in the 1960s to help address several drilling problems:

 

Formation clays that react, swell, or slough after exposure to WBFs

Increasing downhole temperatures

Contaminants

Stuck pipe and torque and drag

 

OBFs:Oil-based fluids

Oil-based fluids (OBFs) in use today are formulated with diesel, mineral oil, or low-toxicity linear olefins and paraffins. The olefins and paraffins are often referred to as “synthetics” although some are derived from distillation of crude oil and some are chemically synthesised from smaller molecules. The electrical stability of the internal brine or water phase is monitored to help ensure that the strength of the emulsion is maintained at or near a predetermined value. The emulsion should be stable enough to incorporate additional water volume if a downhole water flow is encountered.

For better rig work,GN have package solution and equipment for drilling fluids

As a famous standard,GN admit API ,and many place follow it

The American Petroleum Institute (API) is the largest U.S. trade association for the oil and natural gas industry. Built in 1919, the API is the first national-level business association in the United States and one of the earliest and most successful chambers of commerce in the world. The American Petroleum Institute is the largest U.S. trade association for the oil and gas industry. It represents about 400 enterprises involved in the oil industry production, refining, distribution. The Association’s main functions include advocacy and negotiation with the government, the legal community and regulatory agencies; research into the economic and environmental impacts of the industry; establishment of industry standards and certification; and outreach education advocacy. API funding and conducting a number of studies related to the oil industry.

It said to represent about 650 corporations involved in production, refinement, distribution, and big part of other aspects of the petroleum industry.

The association describes its mission as to influence public policy in support of a strong, viable U.S. oil and natural gas industry. Its chief functions on behalf of the industry include advocacy, negotiation and lobbying with governmental, legal, and regulatory agencies; research into economic, toxicological, and environmental effects; establishment and certification of industry standards; and education outreach.API both funds and conducts research related to many aspects of the petroleum industry.also it means a lot for the whole industrial,make it grow up stable,many company admit API as the standard in global, Now the CEO and president is Jack Gerard.

 

The API standard is widely used not only by domestic companies but also by federal and state laws and regulations as well as government agencies such as the Department of Transportation, Department of Defense, Occupational Safety and Health Administration, U.S. Customs, Environmental Protection Agency, U.S. Geological Survey, etc. It is also cited by ISO, international legal metrology organization and over 100 national standards all over the world.

API standards mainly specify equipment performance, sometimes including design and process specifications. The standard setting areas include oil production, refining, measurement, transportation, sales, safety and fire protection, environmental regulations, etc. The information technology standards include EDI for the oil and gas industry , Communications and information technology applications and so on.

The API enjoys a high reputation both in the United States and in other parts of the world and is recognized by the U.S. Department of Commerce and the U.S. Trade Commission as a petroleum machinery certification body. Its petrochemical and oil recovery machinery technical standards are adopted by many countries. Oil companies in many countries of the Middle East, South America and Asia generally require API-marked products when bidding for petroleum machinery to be eligible for bidding. Therefore, the oil machinery with the API logo is not only considered as reliable and advanced. Currently, there are members from all over the world in all aspects including exploration and production, transportation, refining and marketing. Today, APIs have evolved to become an integral part of the world’s oil industry activities, not only in the United States but increasingly.

API can guide the whole industrial grow up health,and GN already learn a lot from it

Tungsten carbide (chemical formula: WC) is a chemical compound (specifically, a carbide) containing equal parts of tungsten and carbon atoms. In its most basic form, tungsten carbide is a fine gray powder, but it can be pressed and formed into shapes for use in industrial machinery, cutting tools, abrasives, armor-piercing rounds, other tools and instruments, and jewelry.

Tungsten carbide has a high melting point at 2,870 °C (5,200 °F), a boiling point of 6,000 °C (10,830 °F) when under a pressure equivalent to 1 standard atmosphere (100 kPa),a thermal conductivity of 110 W·m−1·K−1,and a coefficient of thermal expansion of 5.5 µm·m−1·K−1

Tungsten carbide is extremely hard, ranking about 9 on Mohs scale, and with a Vickers number of around 2600.It has a Young’s modulus of approximately 530–700 GPa,a bulk modulus of 630–655 GPa, and a shear modulus of 274 GPa. It has an ultimate tensile strength of 344 MPa, an ultimate compression strength of about 2.7 GPa and a Poisson’s ratio of 0.31.

Sintered tungsten carbide cutting tools are very abrasion resistant and can also withstand higher temperatures than standard high-speed steel tools. Carbide cutting surfaces are often used for machining through materials such as carbon steel or stainless steel, and in situations where other tools would wear away, such as high-quantity production runs. Because carbide tools maintain a sharp cutting edge better than other tools, they generally produce a better finish on parts, and their temperature resistance allows faster machining. The material is usually called cemented carbide, hardmetal or tungsten-carbide cobalt: it is a metal matrix composite, where tungsten carbide particles are the aggregate, and metallic cobalt serves as the matrix. Manufacturers use tungsten carbide as the main material in some high-speed drill bits, as it can resist high temperatures and is extremely hard.

The application of Tungsten carbide is extensive:

Cutting tools for machining/Ammunition/Mining/Nuclear/Sports usage/Surgical instruments/Jewelry/other

GN’s centrifuge screw is protected by interchangeable tungsten carbide tile for longer service life and easy maintenance