Welcome, visitor! [ Register | Login

Oil Drilling Process With Animations

Oil Drilling July 27, 2017

Remember those orange juice commercials? The ones where people tried to poke a rolling orange with a straw? It’s easy to think of the oil drilling process like that: Difficult to find the bullseye for the straw, but just a matter of sucking up the juice once it’s stuck. Unfortunately, the whole thing is considerably more complicated — and dangerous.

The process begins by drilling a hole deep into the earth. To do this, a long bit attached to a “drilling string” is used. The bit varies in diameter from five to 50 inches. After each section is drilled, a steel pipe slightly smaller than the hole diameter is dropped in and often cement is used to fill the gap.

This “casing” is used to give some structural integrity to the hole and to isolated high-pressure areas of rock that can explode if allowed to release.

The drilling process is, not surprisingly, unlike using a power drill on a piece of wood. The most prominent difference is that the he hole is filled with “mud” — a mixture of fluids, solids and, chemicals — that lubricate the bit and help move the broken rock out of the way.

As the bit moves deeper, new sections of pipe are added to the “string.” These are screwed on to the topdrive at the surface in a process known as “making a connection.”

Completing the Well

Once the hole has been drilled, it must be “completed” or prepared for extraction. Usually, this involves perforating the casing so oil or gas can enter the tube. Sand or gravel is often added to the bottom most reservoir to act as a screen.

Fluids — often high-pressure water or an acid — are then pumped through to clean and fracture the rock, encouraging it to begin releasing hydrocarbons. The main reservoir is then sealed off and connected to the surface with smaller diameter tubing.

All Important Production Phase

The most important phase of drilling “at least from the prospective of the drillers” is the production phase. This is the period during which oil or gas is actually pulled from the ground.

For most wells, the pressure inside the reservoir is enough to push the oil or gas to the surface. In more depleted areas, however, some other means — like a pumpjack — is necessary.

Abandonment

A well does not die, but rather reaches its “economic limit,” the point at which the oil or gas coming out of it no longer covers the costs associated with operation. When this happens, tubing is removed and cement is pored to ensure hydrocarbon reservoirs remain separate from water and the cut off from the surface.

The pump head is then excavated and removed, a cap is welded in place, and the whole thing is buried.

With so many steps taking place down relatively narrow holes deep below the earth’s surface, there is a lot of room for accidents to happen. As proven reserves shrink and become more difficult to replace, drillers are forced to search for deeper and less reliable sources of hydrocarbons and these places are often more difficult and dangerous to drill.

174 total views, 1 today

  • Strategic, Administrative & Operating Decisions

    by on May 31, 2017 - 0 Comments

    From a decision viewpoint the overall problem of the business of the firm is to configure and direct the resources-conversion process in such way as to optimize the attainment of its objectives. Since this calls for a great many distinct and different decisions, dividing the total decision ‘space’ into several distinct categories can facilitate a […]

  • Human Relations & Motivation

    by on May 31, 2017 - 0 Comments

    Anton, a technical specialist at a Pharmaceutical Company, left his manager’s office and walked back to his desk. He sat there quietly for a moment staring at the window wall that faced the area he shared with several other technicians. Suddenly, Anton picked up the heavy urn that held the dozens of colored pens he […]

  • Problem Solving & Decision Making

    by on May 31, 2017 - 0 Comments

    You most probably have heard the old cliché “there are no problems, only opportunities.’ This might sound like pie-in-the-sky optimism to anyone stuck in the middle of a difficult puzzle or a stressful people problem. But by using the proven, logical problem solving and decision making system you indeed can create opportunities from problems. The […]

  • Oil Drilling Process With Animations

    by on July 27, 2017 - 0 Comments

    Remember those orange juice commercials? The ones where people tried to poke a rolling orange with a straw? It’s easy to think of the oil drilling process like that: Difficult to find the bullseye for the straw, but just a matter of sucking up the juice once it’s stuck. Unfortunately, the whole thing is considerably […]

  • 8 Steps To Keeping Heavy Construction Equipment In Top Condition

    by on August 16, 2017 - 0 Comments

    Today, companies that use heavy equipment typically spend significant amounts of money to acquire these vital assets. Maintaining the fleet and keeping the equiment in good condition helps protect the substantial financial investment they represent. We should know since we’re one of the leading commercial construction companies in the nation; that means we also know […]

Sponsor