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Monthly Archives: August 2013

Centrifugal Pump from DC Machinery

Centrifugal PumpDC Machinery offers a broad range of centrifugal pumps with high performance features like: heavy-walled construction and wide vane impellers for enhanced slurry handling capability. Heavy duty ball bearings in the power end provide the load carrying capability to operate under the high loads generated by weighted drilling muds and stimulation fluids.

DC Machinery’s centrifugal pump line has proven to be the best centrifugal design for handling abrasive mud. This pump line offers a broad selection of innovative features for a variety of routine, demanding, abrasive and corrosive applications. These pumps are designed for a wide range of flow rates, from a few gallons per minute to thousands of gallons per minute.

DC Machinery’s centrifugal pump concentric casing design with equal distance from the tip of the impeller at all points allows for a much smooth flow path even at the shutoff conditions compared to volute style casing designs. This design minimizes turbulence often encountered at the cutwater where the fluid is pushed toward the discharge. The concentric casing design also greatly reduces bearing side loading due to unbalanced forces produced in volute style designs.

DC Machinery’s centrifugal pump also incorporates a full open impeller design which maximizes flow through the impeller reducing the axial load to the bearings. The entry curvature of the impeller vanes also helps the fluid to make a smoother transition into the casing of the pump. This smooth flow transition is essential when abrasive fluids and weighted drilling muds.


Linear Motion Shale Shakers From DACHUAN MACHINERY

When it comes to removing solids from your drilling fluid, DACHUAN Machinery patented linear motion shale shakers are the perfect solution. Featuring high performance vibrator motors capable of achieving between 2 to 8.5 G’s of force. An inclined screen deck allows further drying of the cake solids while being conveyed towards the discharge chute. Combined with DACHUAN’s original manufactured Shale Shaker Screens these units provide high-quality, improved drilling fluid recovery, longer screen life and reduced operating costs.

Shale ShakerShale Shaker.

High G-force in a shaker is essential to convey the amount of cuttings generated while drilling a bore hole, to properly dewater drill cuttings, to reclaimin expensive drilling fluids, and to minimize drilling fluid waste.

While drilling top-hole sections, where heavy, high-volume cuttings are typically encountered, shakers need to generate high G-force to effectively convey dense solids. DACHUAN’s variable linear motion vibrator motors are designed to give the operator the ability to adjust the G-force of the shaker to perform under high solids loading conditions and when managing reactive, sticky, or fine solids. As conditions change in drilling and fluids, the G-force of DACHUAN’s shakers can be adjusted with the simple twist of the wrist at the control panel, therefore changing the cuttings conveyance velocity. This can be done without shutting down the shaker and adjusting the weight settings on the vibrator motors saving time and cost on the work site.


• High “G” Force
• 25.4 ft² [2.36 m²] screening area
• Simple design
• Rugged and reliable
• High performance
• Low maintenance
• Quick screen panel changes
• Small footprint
• No lubrication
• Low noise

KNOC Discovers Oil at Zhambyl Block in Caspian Sea

SEOUL, KOREA- Korean National Oil Corp. said on August 28 that it has discovered oil in the Zhambyl geological area, located in the Kazakh sector of the Caspian Sea. The well the state-run oil company found oil (ZB-1) had been explored since May, reaching at the target depth of 2,200 meters. This is the second achievement for KNOC this year following a February discovery of oil in the Hawler field in Iraqi Kurdistan.

The submersible drilling rig “Caspian Explorer,” a barge built by Daewoo Shipbuilding & Marine Engineering, has been used in the latest exploration. The 1,935-square-kilometer Zhambyl block is located in the northwestern part of the Caspian Sea with a depth of 3 to 8 meters. Kazakh state-run company Kazmunaigas holds a 73-percent stake in the project while the Korean consortium comprised of eight Korean companies including Korean National Oil Corp., SK Innovation, Hyundai Hysco, LG International Corp., Aju Industrial, Samsung C&T, Daewoo Shipbuilding, and Daesung Industrial holds the remaining 27-percent stake.

Kazmunaigas and the Korean consortium will explore the area further to find out additional reserves. On the Caspian Sea, there are as many as 100 oil companies operating. As of the end of last year, the proven oil reserves in the area are estimated at 38.2 billion barrels, accounting for about 2.6 percent of the world’s reserves.

Desanders for recyling drilling mud

DesanderDesanders are used to separate sand which is mixed with drilling muds. During drilling process mud is being poured as excavation is getting deeper, this mud also mixes with soil, thus being contaminated with sand and silt, in such a way, that when excavation is finished, it is necessary to recyle mud in order to separate sand from mud and get a clean mud that will be used in next excavations. Each country establishes its own regulations on maximum allowed sand content in drilling mud before concreting operation is carried out, in order to prevent concrete contamination with sand and soil, and Desanders are used for this purpose.

The desander should be located downstream of the shale shakers and degassers, but before the desilters or mud cleaners.

A volume of mud is pumped into the wide upper section of the hydrocylone at an angle roughly tangent to its circumference. As the mud flows around and gradually down the inside of the cone shape, solids are separated from the liquid by centrifugal forces.

The solids continue around and down until they exit the bottom of the hydrocyclone (along with small amounts of liquid) and are discarded. The cleaner and lighter density liquid mud travels up through a vortex in the center of the hydrocyclone, exits through piping at the top of the hydrocyclone and is then routed to the mud tanks and the next mud-cleaning device, usually a desilter. Various size desander and desilter cones are functionally identical, with the size of the cone determining the size of particles the device removes from the mud system.


Oilfield Services Company-Wasco Energy

A globally integrated energy infrastructure group, Wasco Energy is committed to serving its expanding pool of clients around the world.

Established in Malaysia, Wasco Energy’s strong foothold in Asia is supported by a vast network of international operations and facilities. Its Group currently commands a reputable track record of major energy infrastructure projects across the globe. Its stable of products and services are streamlined into four business divisions:
1 Pipe Coating
2 Pipe Manufacturing
3 Engineering
4 E&P Services

Through these distinct products and service offerings, Its Group serves the needs of clients across Asia and Asia Pacific, the Middle East, Africa, Europe and the Americas. It operates in 14 locations around the world, including Malaysia, Singapore, Indonesia, Australia, China, India, the U.A.E., Nigeria and the U.S.A.

As a brand, Wasco Energy is a concept born to create a group of companies that harmonise the virtues and values of both Eastern and Western cultures to take advantage of the opportunities offered by the global energy sector.

Wasco Energy is a truly accessible choice and provides the industry with open and innovative perspectives that are driven by its passion for excellence.

How to enhance the service life of Shaker Screen

Drilling fluid shale shaker can eliminate the solid particles size depend on the mesh size and shape. Field data shows that use the shaker screen with 12 mesh number most can eliminate only 10% of the solid phase. Therefore, we should use 80~120 mesh fine screen to eliminate more drilling cuttings.

However, it will occur the following new problems: The mesh area of fine screen is less than the conventional screen, thus will reduce the treating capacity; The thin wire strength is low, the service life is shorter than the conventional screen; When high viscosity drilling fluid through the fine screen, the mesh will be blocked easily.
Shaker Screen.

The main reasons of shale shaker screen broken quickly are many aspects: Screen quality is not qualified, screen tension strength is not enough, vibration motor steering error, clay accumulation and so on, these will cause shale shaker screen broken quickly.

For increasing the service life and anti-clogging ability of shaker screen, we often use the laminated screen which has two or three layers screen, the lower coarse screen plays the support role. In addition, we can also use the double or multiple screen which has a certain space distance between layer and layer. Generally the upper is coarse screen, and the lower is fine screen. The upper coarse screen can eliminate bigger solid particles, can reduce the burden of the fine screen to remove fine solid phase more effectively.

For enhance the service life of screen which has no tension, it must ensure every parts (like rubber strut member, nut, bolt, spring, etc.) can be installed suitably, no deformation. According the installing step which supplied by manufacturer to install the screen. If the multilayer shale shaker only use one layer, it must ensure the tension pole is safe and reliable.


Iran to create new oil export organization

London, Asharq Al-Awsat—Iran’s oil minister, Bijan Namdar Zanganeh, has been tasked with creating a new organization to boost sales of Iranian oil and counter Western sanctions on Iranian oil exports, according to reports in the Iranian media. Zanganeh approved efforts to begin laying the groundwork for the new body on Wednesday, according to Iran’s ISNA news agency.

Iran’s attempts to counter the embargo imposed by the UN, EU and US on Iran’s oil sector during the Ahmadinejad administration has become a controversial issue within Iranian politics.

It is widely-believed that the previous government launched a policy of selling oil via quasi-private sector brokers in various international markets, mostly in the south-east Asia.

Some figures close to former aides of ex-president Mahmoud Ahmadinejad have been named in Iranian media as Iran’s first ever oil tycoons. Babak Zanjani is the most infamous of the list, and is rumored to have made billions of dollars in proxy deals to sell Iran’s oil and import the hard currency earned in the deals back into the country.

The decision to create a new organization was welcomed by some members of the Iranian association of oil and gas products exporters. One member, Hamid Hosseini, said: “considering the current [sanctions] situation, the country should introduce new methods for selling oil and reform the old methods.”

He added that the new body, suggested earlier by oil minister, Bijan Zangeneh, “is to apply different procedures than the International Affairs Department at Iran’s National Oil Company, which currently holds the responsibility for selling Iran’s oil. ”

“The oil minister has started preparations to establish the new organization, but we don’t know when the new body will actually be inaugurated,” Hosseini was quoted as saying by ISNA news agency.

According to ISNA news agency, “Zangeneh had mentioned re- establishing the bodies involved in selling Iran’s oil and the creation of a special organization to deal with the export of oil and petrochemical products in a scheme presented to Iranian parliament, before his candidacy was approved earlier this month. ”

The Iranian move decision follows the passage of a bill to tighten sanctions on Iranian oil exports through the lower house of the US Congress in July.

The bill is designed to introduce measures to cut Iran’s oil exports by another one million barrels per day to near zero over the course of a year, in order to reduce the flow of funds to the country’s nuclear program.

According to Reuters, the vote also highlighted a growing divide between Congress and the Obama administration on Iran policy ahead of international talks on the nuclear program.

The Iranian government insists its nuclear project is purely for peaceful purposes, and has dismissed the new sanctions as ineffective and counterproductive in resolving outstanding issues between Iran and Western countries.

“We have no doubts that sanctions are a failed policy,” Iran’s foreign ministry spokesman, Abbas Araqchi, said on August 1, according to quotes published by the website of the state-run broadcaster IRIB.“Sanctions and intensifying them . . . will only make the nuclear issue more complex and more difficult to resolve,” he added.


KrisEnergy, Mubadala Petroleum to Develop Offshore Nong Yao Oil Field

Singapore-listed KrisEnergy Ltd. and its joint venture partner Mubadala Petroleum have agreed on a final investment decision to develop the Nong Yao oil field in the G11/48 contract area in the Gulf of Thailand.

The development concept for the initial phase of the Nong Yao field will comprise 23 wells, a wellhead processing platform and a minimum facility wellhead platform with the export of crude oil via a floating storage and offloading vessel.

First oil from the offshore Nong Yao field is expected in the first half 2015 and the production capacity is expected to reach
up to 15,000 barrels of oil per day and 30,000 barrels of fluids per day.

“We are extremely pleased that the joint-venture partners have reached this stage. The development of Nong Yao marks another milestone in KrisEnergy’s growth and we are delighted to be developing a project in the Gulf of Thailand where we have enjoyed success previously,” Chris Gibson-Robinson, KrisEnergy’ s director Exploration & Production, said in a press release.

Mubadala Petroleum is operator of Block G11/48 with a 75 percent stake, while partner KrisEnergy, which acquired an interest in the concession in 2009, holds the remaining 25 percent working interest.

Block G11/48 covers 4,220 miles (6,791 square kilometers) over the southern margin of the Pattani Basin and the northwest margin of the Malay Basin in water depths of up to 246 feet (75 meters).



CBM Drilling Mud Cleaning System from China

The drilling mud recycling system developed independently by Tangshan Dachuan Machinery Co., Ltd (a professional manufacturer of Solids Control System in China)is applied to the whole process of CBM well drilling. This system can effectively control the solid phase content of mud between 5μm~15μm in the process of CBM drilling, and at the same time matching mud parameters ratio, promote drilling mud quality, the mud viscosity ratio can be up to 120s and mud density can be 2.4g/cm³.

Besides, this system can improve drilling speed, extend service life of mud pump and drill rig, ensure drilling safety, reduce labor intensity, in the meantime improve drilling site environment which plays a positive role in environmental protection.

Mud Recycling System

Through R & D, Tangshan Dachuan Machinery mastered the technology of CBM well drilling, coring, borehole connection and well completion, among which the CBM pinnate horizontal directional drilling technology is a comprehensive drilling technology that combined horizontal drilling technology, branch well drilling technology, under-balanced drilling technology, cave well connectivity technology in one.

The equipments of CBM drilling mud cleaning system manufactured by Tangshan Dachuan Machinery include: Sand tank, purification tank, shale shaker, desander, desilter, mud cleaner, centrifuge, centrifugal pump, shear pump, submersible slurry pump, mud agitator, jet mud mixer, mud gun, etc.

Shale Gas Company Halts Drilling at British Site

LONDON — Cuadrilla Resources, a British shale gas company, has suspended drilling activity at its site in Balcombe, the village south of London that has become a focus of protests against Britain’s efforts to develop a shale gas industry.The site in Balcombe

Although the company is drilling for oil, not gas, at Balcombe, its activities there have become symbolic of the shale-gas effort in Britain because Cuadrilla has been in the forefront of shale gas exploration in northwest England. The company attracted the wrong sort of attention in 2011 when early efforts to hydraulically fracture a well in Lancashire set off minor earthquakes.

Cuadrilla said Friday that it had decided to suspend drilling after taking advice from the local police in Sussex, following “threats of direct action against the exploration site.”

The company said it was acting in the interest of the safety of its own staff, Balcombe residents and protesters. A person close to the company said that Cuadrilla was concerned that protesters might invade the site, as they have done at a Cuadrilla site in northern England. The person asked not to be identified because he was not authorized to speak about the issue.

The decision not only delays Cuadrilla’s exploration program but is damaging to the government-backed effort to develop shale and other so-called unconventional oil and gas to replace declining production in the North Sea. Britain is thought to have substantial shale gas resources but it will require extensive drilling and testing to discover whether the gas in the ground can be profitably produced.

Amid the controversy in Balcombe, Prime Minister David Cameron has weighed in on the debate. In an article published last Sunday in the Sunday Telegraph, which is considered staple reading of his Conservative Party constituents, Mr. Cameron wrote in support of fracking, the technique of pumping liquids and sand down wells to cause the rock to release trapped oil and gas.

“If we don’t back this technology, we will miss a massive opportunity to help families with their bills and make our country
more competitive,” Mr. Cameron wrote.

The antifracking movement appears to be gaining momentum. Campaigners said that protesters from throughout the British Isles were planning to converge on Balcombe this weekend in a march for “a frack-free future.”

Cuadrilla, whose chairman is a former BP chief executive, John Browne, already appeared to be backing down this week when it said that while it would continue its exploration at Balcombe, the drilling site there was unlikely to become a permanent production site.

“Cuadrilla has to delay drilling until next week. That’s a huge victory,” Katriona Vetch, an activist in Balcombe, said by telephone.


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