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Monthly Archives: May 2015

Egypt Extends Mediterranean Gas Exploration Tender by Two Months

CAIRO, May 26 (Reuters) – Egypt has extended its tender for natural gas exploration in the Mediterranean Sea by two months with the addition of four new blocks, the state gas board said on Tuesday, as the country seeks to boost domestic energy production.

CAIRO, May 26 (Reuters) – Egypt has extended its tender for natural gas exploration in the Mediterranean Sea by two months with the addition of four new blocks, the state gas board said on Tuesday, as the country seeks to boost domestic energy production.

Egypt is going through its worst energy crisis in decades, with increasing consumption and declining production turning the country from a net energy exporter to a net importer over the past few years.


Egypt is going through its worst energy crisis in decades, with increasing consumption and declining production turning the country from a net energy exporter to a net importer over the past few years.

Egypt has extended tender periods in the past when there was not enough interest or when potential bidders requested more time to complete evaluations.

EGAS vice-president Mahfouz al-Buny told Reuters the period was extended at the request of a number of companies who wanted further details on the blocks available, and to give firms time to evaluate the four new blocks up for tender.

The four additional blocks are Northeast Habi Marine, North Farma Marine, North Tabiya Marine and Northeast Amiriya Marine, EGAS said.

The original eight blocks are West Arish Marine, East Port Said Marine, North Rumana Marine, North Ras al-Ash Marine, West al Timsah Marine, South Taneen Marine, North Hammad Marine and East Alexandria Marine. The 12 blocks together cover a total of 20,548 square km (7,934 square miles). The foreign companies already exploring for oil and gas off Egypt’s north coast include Italy’s ENI and Britain’s BP and BG.

Different types of mud pump

A mud pump is a large pump used to move heavy drilling fluid, known as mud, within a hole when drilling for oil. The pump circulates the mud by pushing it down into the hole and then moving it back up again. Mud pumps are reciprocating pumps, meaning that they use oscillating pistons or plungers to displace the fluid.

The “mud” used is drilling for oil consists of emulsified water or oil, clay and chemicals. For safety reasons, it is tailor-made to the particular chemical conditions of the drilling. Its purpose is to float rock cuttings out of the hole, clean the bottom of the hole and cool the drilling equipment. It also acts as the initial barrier in case of a blowout by resisting the pressure from any fluid within the rock that might enter the well.

mud pumps

Mud Pumps can be divided into single-acting pump and double-acting pump according to the completion times of the suction and drainage acting in one cycle of the piston’s reciprocating motion.

Mud Pumps come in a variety of sizes and configurations but for the typical petroleum drilling rig, the triplex (three piston/plunger) Mud Pump is the pump of choice. Duplex Mud Pumps (two piston/plungers) have generally been replaced by the triplex pump, but are still common in developing countries. Two later developments are the hex pump with six vertical pistons/plungers, and various quintuplex’s with five horizontal piston/plungers. The advantages that these new pumps have over convention triplex pumps is a lower mud noise which assists with better MWD and LWD decoding.

Vertical cutting dryer working principle

Vertical cutting dryer is designed to reduce and recover base fluid from a variety of feed slurry. In drilling operations, typical solids control equipment discards 1-4 barrels of liquid for each barrel of solids removed.

Vertical Cutting Dryer uses centrifugal force to dry drilled solids in oil or synthetic base fluids. A stainless steel screen bowl traps “wet” solids and accelerates them up to 890RPM with G force up to 420. Liquid is forced through the screen bowl openings, while “dry” solids are extracted by the angled flights attached to the cone, which rotate slightly slower than the bowl.

vertical cutting dryer

Vertical cutting dryer improves overall cost-efficiency by recovering costly drilling fluids that is recovered from cuttings, as well as whole mud lost from shale shaker failure and rig motion. Further, the Vertical cuttings dryer produces lower waste volume by generating dryer solids in both oil and synthetic-based drilling mud system.

DCTLL-A915 vertical Cutting Dryer is the latest design from World top solids control manufacturer. This mechanism make vertical cutting dryer one of the industry’s best performing and most dependable cutting dryer. The Vertical Cutting Dryer gives operators a critical advantage in meeting increasingly stringent environmental rules for cuttings proposal.

Decanter centrifuge preparing delivery to Indonesia

Decanter centrifuge is a special separation equipment for drilling fluid circulating system, waste management, textile waste processing and ect.

Recent days, there is a decanter centrifuge preparing delivery to Indonesia which used for textile industry. The bowl cylindrical and conical section made from duplex stainless steel 2205 by centrifugal casting. Other parts of the bowl assembly material is stainless steel SS316. And the screw flow distrubution port and bowl solids discharge port protected by tungsten carbide alloy. Pressurized EX proof VFD control cabinet with PLC controlled.


The corrosion resistance and abrasive resistance of duplex stainless steel is better than the common SS304, which have already received by the masses of users gradually and will replacing SS304 drum decanter centrifuges.

decanter centrifuge

The main working part of centrifuge is the drum whose length and diameter directly decide the centrifuge treating capacity. DC Solid contrl provide different radial centrifuges. We have fixed and frequency conversion the two kinds of centrifuges. Any questions about decanter centrifuges, please contact us.

Learn more about drilling mud agitators

Mud agitator is a agitating equipment located in the tank. It is used for drilling fluid agitation mix, prevent drilling fluid solid particles in the tank circulation system deposit, cycle drilling fluid performance stability, mixed evenly.

This mud agitator has the advantage of compact structure so it occupies small area. More than 7.5 kW Mud Agitator uses the turbo and worm gear speed reducer, with the large torque transmission、 the revolution is steady、it works reliably and has great merit.

mud agitators

Drilling mud agitator speed

Because the drill cuttings don’t need to be further crushed in the mixing process, therefore the mud agitator speed used in drilling should not be too high, we should try to choose them between 50 ~ 60 rpm. For the mud agitator more than 60 rpm , recommend careful to use.

Power of drilling mud agitator

According to the actual determination of the mud agitator operating power, the mud agitator actual output power is less than 2kw. There are two kinds of mud agitator with motor 7.5kw, 11kw, and 15kw on the market. The design guidelines are due to impeller can still start when it shut down after being buried by sand. But actually in this condition the motor usually burned or blades broken. Therefore, the structure should be improved.

Mud Agitator Features & Benefits

1. Helical-bevel gearbox
2. Explosion-proof electric motor
3. Able to process 20 ppg drilling fluids
4. Power available ranging from 2.2 to 22KW
5. Compact, quiet, smooth and easy to maintain

DC solid control give full consideration to improve the mud agitator performance, through a large number of application based on the practice of developed, high efficiency, stirring intensity big, maintenance convenient highly competitiveness in the market of mud agitator.

Solutions for shear pumps malfunction

Shear pumps can provide high shearing efficiency, expedite polymer dilution and hydration process. There are many molecular weight
of high-molecular polymer in drilling fluid and difficult to hydrate. So the high-molecular polymer need preshear. Shear pump provide higher flow and lift to meet the requirements of compound and process drilling fluid.

1. Packing seal problem of shear pumps

Malfunction: Packing seal leaked seriously, packing and the surface of sleeve is heavy wear.
Solution: Dismantling the packing, use a wire bent 90 degrees move in the sleeve wall, replace the sleeve if check out have a deep groove. Too tightly on the packing gland lead to severe wear.

shear pumps

2. polyurethane of shear pumps.

Malfunction: Oil seal severe wear caused leakage.
Solutions: Replace the polyurethane, usually, replace the polyurethane seal and sleeve after the pump running 3-6 months.

3. Shear pump packing burn out.

Reason: Packing too tightly cause overheating.
Solution: replace the packing, gland can’t be too tight.

4. Abnormal rotation of impeller or associated impeller.

Reason: Small interval between the back of impeller and backplate, or associated impeller and backplate or packing box.
Solution: Using screw bolt and nut adjust the interval. After the adjustment rotating shaft by hand, each parts can not have stuck, grating and rotary flexible.

Necessarity of mud zero discharge equipment

Oil base drilling fluid is composed of oil, water, organic clay and oil solubility chemical agent. Oil base drilling fluid have the property of high temperature resistance and calcium salt erosion resistance which is in favour of stable borehole, good lubrication, and small damage for oil and gas, and widely used in all kinds of drilling rigs. But the base oil-diesel in oil base drilling fluid can produce the aromatic hydrocarbon with toxins, the greater of aromatics contained, the greater of the toxicity.

Because of more and more strictly requirements to the environment, especially toxicity of emissions limit is more strictly in offshore, the commonly used diesel oil mud system can’t meet the requirements of the toxicity index suggested by the department of environmental protection.

vertical cutting dryer

The common solid control equipment can efficiency recycle the heavy barite and useful drilling fluid, if the waste drilling fluid contain heavy metal and compound solid phase is indiscriminate discharged, and long-term precipitation will have big damage to nearby vegetation, soil, underground water and human living environment.

In order to meet the requirements of drilling site and combine perennial drilling experience, DC Solid control researched the mud zero discharge equipment, oil and water base mud treatment system included.

The DCTLL-A915 vertical cutting dryer is the key part of the drilling cutting treatment system, is the latest product produced by DC solid control. DCTLL-A915 vertical cuttings dryer has proven to reduce this liquid to below 5% (OOC) by weight by site test.


DC Solid control shale shaker for sale

Shale shaker is the first stage purification equipment in the whole mud cleaning system. And DC shale shaker is well received by
vast users.

shale shaker

DCS700 series linear motion shale shaker is a saleable model, which is more easy to operate and maintain. DC
Solid control has 10 sets DCS700-3 or DCS700-4 shale shakers in stock, also have the properities of long vibration motors, 700×1053 shaker screen, and AWD jacking system.

If you have requirement of shale shaker, please contact us, you can get advanced technology assistance and fastest delivery.
Looking forward your inquiry.

Screw conveyor specification

A screw conveyor or auger conveyor is a mechanism that uses a rotating helical screw blade, called a “flighting”, usually within a tube, to move liquid or granular materials. They are used in many bulk handling industries.

screw conveyor

Screw conveyor usually consist of a trough or tube containing either a spiral blade coiled around a shaft, driven at one end and held at the other, or a “shaftless spiral”, driven at one end and free at the other. it is used to convey material from one place to another place by means Rotating Screw type Auger. Material can be carried either horizontally or vertically or at required angle.

The capacity of a screw conveyor depends on the screw diameter, screw pitch, speed of the screw and the loading efficiency of the cross sectional area of the screw.


Screw Conveyor Features & Benefits:
1. It has compact structure, small cross section, light weight, good sealing performance, highly efficient transportation, flexible technological layout, with ease installation, dismantlement, motion and safe operation.
2. It is applicable to transport various kinds of soft materials such as powder, granular and small pieces of materials.
3. It is not applicable to transport materials that is of high viscosity and is easy to be curdled.

Entrepose Acquires Oil, Gas Equipment Maker IKL

French oil and gas infrastructure builder Entrepose announced Monday that it has bought Indonesian process equipment firm PT Istana Karang Laut (IKL). IKL makes oil and gas production process modules and metering systems, and it also supplies turnkey project management solutions under EPC (engineering, procurement, construction and commissioning) contracts.

Entrepose – a subsidiary of construction group VINCI – designs, builds and operates production, transport and storage infrastructure for the oil and gas industry. The acquisition of IKL is part of the company’s strategy to expand geographically and diversify its activities, according to Entrepose Chairman Benoît Lecinq.

“IKL opens up markets for us in Central and South-East Asia, where demand for energy is increasing strongly and where resources have not yet been totally exploited. The company also brings us products and services in the downstream sector of the oil and gas industry,” he said, highlighting the recent deal between IKL and SGFL, a state-owned company in Bangladesh, for the design, construction and commissioning of a condensate fractionation plant.

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