Parity/Non-Parity – checks the integrity of the data. Even Parity – guarantees that there is an even number of 1’s in the byte. It does this by uses a parity chip. If an odd number of 1’s are present then the parity chip adds a 1 if not then it adds a zero. If when … Continue reading Deciphering Memory
DRAM – Dynamic Ram; must be refreshed, the memory cell consists of capacitors that store an electrical charge if they can’t the data they store will be lost. It must be consistently refreshed. The system memory controller on the motherboard controls the refreshing of the DRAM. It is usually found in the Northbridge section of … Continue reading Types of Memory
No paper indication. This usually indicates that there is no paper, check the paper tray, the solution is obviously add paper. It there is paper check to see if there is the appropriate amount. If the paper goes below a certain amount then the rollers may not pick it up. The solution is the keep … Continue reading Troubleshooting a Printer
You need to right click on the folder you want to share. Go to properties On the top of the menu you will see tabs, one of them would be Sharing. If you do not see the share tab then you do not have the administrator privilege and you won’t be able to share. Select … Continue reading How to Share a Folder In XP
Laser Printer Basics The basic components are; Toner – a mixture of black carbon, polyester resin and iron oxide. It also contains developer. The cartridge is sensitive to light, when exposed to light it loses its charge. Scanning assembly – the laser discharges the drum as it rotates. HVPS – the high voltage power … Continue reading Laser Printer Basics
Since the advent of cell phones and mobile technology mankind has been trying to get better battery life out of them. Lowering your screen brightness is the first way you can maximize your battery life. One of the best ways to help to prolong battery life while in use is to adopt a battery/power consumption … Continue reading Maximizing Battery Life
BHA Components Junk Sub – contains a narrow trough which exists in the sub to collect small pieces of metal. Shock Sub – dampens the drill bit vibration. Sacrificially prolongs the life of the drill string, bit and rig. They are not stiff when compared to drill collars. They tend to be limited to straight … Continue reading BHA Components
Stabilizing Tools Essentially they centre the BHA in the hole. The basic types are rotating and non- rotating. In soft rock it can gauge the hole. The rotating type has blades that are spiraled around the body. The blades can be integral, namely molded onto the body, welded to the body or fastened to the … Continue reading Stabilizing Tools
The Mud Motor Based on the principle developed by, Rene Moineau. The theory states that a helical rotor with one or more lobe will rotate eccentrically when within a stator containing one or more lobe than the rotor. The flow of this fluid transmits power allowing the assembly to rotate and turn the bit. Different … Continue reading The Mud Motor
Bottom Hole Assembly (BHA) Configuration There are three (3) types of bottom hole configurations; TYPE I - standard, simple configuration, drill collars and drill pipe only. Neutral point lies within the drill collars. TYPE II – uses the heavy weight drill pipe as a transition between the drill collars and the drill pipe. Weight on … Continue reading Bottom Hole Assembly (BHA) Configuration
The Bottom Hole Assembly The bottom hole assembly commonly abbreviated BHA, is a drill string component. It usually resides above the drill bit and below the drill pipe. In some instances you can consider the drill bit as part of the BHA. The primary component of the BHA is the drill collar. The Purpose - … Continue reading The Bottom Hole Assembly
Straight Hole Drilling A perfectly straightly hole would be almost if not downright impossible to obtain. Too many factors cause deviation. The purpose of the appropriate assembly is to mitigate or control deviation. Why drill straight; To not drift the well into another block To ensure drilling into another pay-zone To conform to legal requirements … Continue reading Straight Hole Drilling
Rotary Assemblies Usually used where formations are predictable and rig economics are an issue. In such an assembly the weight of the drill collar gives the bottom hole assembly the tendency to sag or flex to the low side of the hole, collar stiffness length and stabilizer diameter and placement are engineered as a means … Continue reading Rotary Assemblies
The boiler is essentially a device that is used to generate steam from the heating of water. The boiler will generate heat by means of either electric heaters or the combustion of a fossil fuel such as methane (natural gas). Even though the incoming fluid to be boiled is only water it does not mean … Continue reading The Boiler